diff options
| author | marha <marha@users.sourceforge.net> | 2011-09-12 11:27:51 +0200 |
|---|---|---|
| committer | marha <marha@users.sourceforge.net> | 2011-09-12 11:27:51 +0200 |
| commit | dafebc5bb70303f0b5baf0b087cf4d9a64b5c7f0 (patch) | |
| tree | bdf833cc6a4fc9035411779e10dd9e8478201885 /libXaw/src/TextAction.c | |
| parent | 0b40f5f4b54453a77f4b09c431f8efc6875da61f (diff) | |
| download | vcxsrv-dafebc5bb70303f0b5baf0b087cf4d9a64b5c7f0.tar.gz vcxsrv-dafebc5bb70303f0b5baf0b087cf4d9a64b5c7f0.tar.bz2 vcxsrv-dafebc5bb70303f0b5baf0b087cf4d9a64b5c7f0.zip | |
Synchronised line endinge with release branch
Diffstat (limited to 'libXaw/src/TextAction.c')
| -rw-r--r-- | libXaw/src/TextAction.c | 8804 |
1 files changed, 4402 insertions, 4402 deletions
diff --git a/libXaw/src/TextAction.c b/libXaw/src/TextAction.c index 2e55f662e..1e3d07bac 100644 --- a/libXaw/src/TextAction.c +++ b/libXaw/src/TextAction.c @@ -1,4402 +1,4402 @@ -/*
-
-Copyright 1989, 1994, 1998 The Open Group
-
-Permission to use, copy, modify, distribute, and sell this software and its
-documentation for any purpose is hereby granted without fee, provided that
-the above copyright notice appear in all copies and that both that
-copyright notice and this permission notice appear in supporting
-documentation.
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
-AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-Except as contained in this notice, the name of The Open Group shall not be
-used in advertising or otherwise to promote the sale, use or other dealings
-in this Software without prior written authorization from The Open Group.
-
-*/
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-#include <stdio.h>
-#include <stdlib.h>
-#include <X11/Xos.h> /* for select() and struct timeval */
-#include <ctype.h>
-#include <X11/IntrinsicP.h>
-#include <X11/StringDefs.h>
-#include <X11/Xatom.h>
-#include <X11/Xfuncs.h>
-#include <X11/Xutil.h>
-#include <X11/Xwinsock.h>
-#include <X11/Xmu/Atoms.h>
-#include <X11/Xmu/Misc.h>
-#include <X11/Xmu/StdSel.h>
-#include <X11/Xmu/SysUtil.h>
-#include <X11/Xaw/MultiSinkP.h>
-#include <X11/Xaw/MultiSrcP.h>
-#include <X11/Xaw/TextP.h>
-#include <X11/Xaw/TextSrcP.h>
-#include <X11/Xaw/XawImP.h>
-#include "Private.h"
-#include "XawI18n.h"
-
-#define SrcScan XawTextSourceScan
-#define FindDist XawTextSinkFindDistance
-#define FindPos XawTextSinkFindPosition
-#define MULT(w) (w->text.mult == 0 ? 4 : \
- w->text.mult == 32767 ? -4 : w->text.mult)
-
-#define KILL_RING_APPEND 2
-#define KILL_RING_BEGIN 3
-#define KILL_RING_YANK 100
-#define KILL_RING_YANK_DONE 98
-
-#define XawTextActionMaxHexChars 100
-
-#ifdef _MSC_VER
-#define usleep(time) Sleep(time)
-#endif
-/*
- * Prototypes
- */
-static void _DeleteOrKill(TextWidget, XawTextPosition, XawTextPosition, Bool);
-static void _SelectionReceived(Widget, XtPointer, Atom*, Atom*, XtPointer,
- unsigned long*, int*);
-static void _LoseSelection(Widget, Atom*, char**, int*);
-static void AutoFill(TextWidget);
-static Boolean ConvertSelection(Widget, Atom*, Atom*, Atom*, XtPointer*,
- unsigned long*, int*);
-static void DeleteOrKill(TextWidget, XEvent*, XawTextScanDirection,
- XawTextScanType, Bool, Bool);
-static void EndAction(TextWidget);
-#ifndef OLDXAW
-static Bool BlankLine(Widget, XawTextPosition, int*);
-static int DoFormatText(TextWidget, XawTextPosition, Bool, int,
- XawTextBlock*, XawTextPosition*, int, Bool);
-static int FormatText(TextWidget, XawTextPosition, Bool,
- XawTextPosition*, int);
-static Bool GetBlockBoundaries(TextWidget, XawTextPosition*, XawTextPosition*);
-#endif
-static int FormRegion(TextWidget, XawTextPosition, XawTextPosition,
- XawTextPosition*, int);
-static void GetSelection(Widget, Time, String*, Cardinal);
-static char *IfHexConvertHexElseReturnParam(char*, int*);
-static void InsertNewCRs(TextWidget, XawTextPosition, XawTextPosition,
- XawTextPosition*, int);
-static int InsertNewLineAndBackupInternal(TextWidget);
-static int LocalInsertNewLine(TextWidget, XEvent*);
-static void LoseSelection(Widget, Atom*);
-static void ParameterError(Widget, String);
-static Bool MatchSelection(Atom, XawTextSelection*);
-static void ModifySelection(TextWidget, XEvent*, XawTextSelectionMode,
- XawTextSelectionAction, String*, Cardinal*);
-static void Move(TextWidget, XEvent*, XawTextScanDirection, XawTextScanType,
- Bool);
-static void NotePosition(TextWidget, XEvent*);
-static void StartAction(TextWidget, XEvent*);
-static XawTextPosition StripOutOldCRs(TextWidget, XawTextPosition,
- XawTextPosition, XawTextPosition*, int);
-#ifndef OLDXAW
-static Bool StripSpaces(TextWidget, XawTextPosition, XawTextPosition,
- XawTextPosition*, int, XawTextBlock*);
-static Bool Tabify(TextWidget, XawTextPosition, XawTextPosition,
- XawTextPosition*, int, XawTextBlock*);
-static Bool Untabify(TextWidget, XawTextPosition, XawTextPosition,
- XawTextPosition*, int, XawTextBlock*);
-#endif
-
-/*
- * Actions
- */
-static void CapitalizeWord(Widget, XEvent*, String*, Cardinal*);
-static void DisplayCaret(Widget, XEvent*, String*, Cardinal*);
-static void Delete(Widget, XEvent*, String*, Cardinal*);
-static void DeleteBackwardChar(Widget, XEvent*, String*, Cardinal*);
-static void DeleteBackwardWord(Widget, XEvent*, String*, Cardinal*);
-static void DeleteCurrentSelection(Widget, XEvent*, String*, Cardinal*);
-static void DeleteForwardChar(Widget, XEvent*, String*, Cardinal*);
-static void DeleteForwardWord(Widget, XEvent*, String*, Cardinal*);
-static void DowncaseWord(Widget, XEvent*, String*, Cardinal*);
-static void ExtendAdjust(Widget, XEvent*, String*, Cardinal*);
-static void ExtendEnd(Widget, XEvent*, String*, Cardinal*);
-static void ExtendStart(Widget, XEvent*, String*, Cardinal*);
-static void FormParagraph(Widget, XEvent*, String*, Cardinal*);
-#ifndef OLDXAW
-static void Indent(Widget, XEvent*, String*, Cardinal*);
-#endif
-static void InsertChar(Widget, XEvent*, String*, Cardinal*);
-static void InsertNewLine(Widget, XEvent*, String*, Cardinal*);
-static void InsertNewLineAndBackup(Widget, XEvent*, String*, Cardinal*);
-static void InsertNewLineAndIndent(Widget, XEvent*, String*, Cardinal*);
-static void InsertSelection(Widget, XEvent*, String*, Cardinal*);
-static void InsertString(Widget, XEvent*, String*, Cardinal*);
-#ifndef OLDXAW
-static void KeyboardReset(Widget, XEvent*, String*, Cardinal*);
-#endif
-static void KillBackwardWord(Widget, XEvent*, String*, Cardinal*);
-static void KillCurrentSelection(Widget, XEvent*, String*, Cardinal*);
-static void KillForwardWord(Widget, XEvent*, String*, Cardinal*);
-#ifndef OLDXAW
-static void KillRingYank(Widget, XEvent*, String*, Cardinal*);
-#endif
-static void KillToEndOfLine(Widget, XEvent*, String*, Cardinal*);
-static void KillToEndOfParagraph(Widget, XEvent*, String*, Cardinal*);
-static void MoveBackwardChar(Widget, XEvent*, String*, Cardinal*);
-static void MoveBackwardWord(Widget, XEvent*, String*, Cardinal*);
-static void MoveBackwardParagraph(Widget, XEvent*, String*, Cardinal*);
-static void MoveBeginningOfFile(Widget, XEvent*, String*, Cardinal*);
-static void MoveEndOfFile(Widget, XEvent*, String*, Cardinal*);
-static void MoveForwardChar(Widget, XEvent*, String*, Cardinal*);
-static void MoveForwardWord(Widget, XEvent*, String*, Cardinal*);
-static void MoveForwardParagraph(Widget, XEvent*, String*, Cardinal*);
-static void MoveNextLine(Widget, XEvent*, String*, Cardinal*);
-static void MoveNextPage(Widget, XEvent*, String*, Cardinal*);
-static void MovePage(TextWidget, XEvent*, XawTextScanDirection);
-static void MovePreviousLine(Widget, XEvent*, String*, Cardinal*);
-static void MovePreviousPage(Widget, XEvent*, String*, Cardinal*);
-static void MoveLine(TextWidget, XEvent*, XawTextScanDirection);
-static void MoveToLineEnd(Widget, XEvent*, String*, Cardinal*);
-static void MoveToLineStart(Widget, XEvent*, String*, Cardinal*);
-static void Multiply(Widget, XEvent*, String*, Cardinal*);
-static void NoOp(Widget, XEvent*, String*, Cardinal*);
-#ifndef OLDXAW
-static void Numeric(Widget, XEvent*, String*, Cardinal*);
-#endif
-static void Reconnect(Widget, XEvent*, String*, Cardinal*);
-static void RedrawDisplay(Widget, XEvent*, String*, Cardinal*);
-static void Scroll(TextWidget, XEvent*, XawTextScanDirection);
-static void ScrollOneLineDown(Widget, XEvent*, String*, Cardinal*);
-static void ScrollOneLineUp(Widget, XEvent*, String*, Cardinal*);
-static void SelectAdjust(Widget, XEvent*, String*, Cardinal*);
-static void SelectAll(Widget, XEvent*, String*, Cardinal*);
-static void SelectEnd(Widget, XEvent*, String*, Cardinal*);
-static void SelectSave(Widget, XEvent*, String*, Cardinal*);
-static void SelectStart(Widget, XEvent*, String*, Cardinal*);
-static void SelectWord(Widget, XEvent*, String*, Cardinal*);
-static void SetKeyboardFocus(Widget, XEvent*, String*, Cardinal*);
-static void TextEnterWindow(Widget, XEvent*, String*, Cardinal*);
-static void TextFocusIn(Widget, XEvent*, String*, Cardinal*);
-static void TextFocusOut(Widget, XEvent*, String*, Cardinal*);
-static void TextLeaveWindow(Widget, XEvent*, String*, Cardinal*);
-static void TransposeCharacters(Widget, XEvent*, String*, Cardinal*);
-#ifndef OLDXAW
-static void ToggleOverwrite(Widget, XEvent*, String*, Cardinal*);
-static void Undo(Widget, XEvent*, String*, Cardinal*);
-#endif
-static void UpcaseWord(Widget, XEvent*, String*, Cardinal*);
-static void DestroyFocusCallback(Widget, XtPointer, XtPointer);
-
-/*
- * External
- */
-void _XawTextZapSelection(TextWidget, XEvent*, Bool);
-
-/*
- * Defined in TextPop.c
- */
-void _XawTextInsertFileAction(Widget, XEvent*, String*, Cardinal*);
-void _XawTextInsertFile(Widget, XEvent*, String*, Cardinal*);
-void _XawTextSearch(Widget, XEvent*, String*, Cardinal*);
-void _XawTextDoSearchAction(Widget, XEvent*, String*, Cardinal*);
-void _XawTextDoReplaceAction(Widget, XEvent*, String*, Cardinal*);
-void _XawTextSetField(Widget, XEvent*, String*, Cardinal*);
-void _XawTextPopdownSearchAction(Widget, XEvent*, String*, Cardinal*);
-
-/*
- * These are defined in Text.c
- */
-void _XawTextAlterSelection(TextWidget, XawTextSelectionMode,
- XawTextSelectionAction, String*, Cardinal*);
-void _XawTextClearAndCenterDisplay(TextWidget);
-void _XawTextExecuteUpdate(TextWidget);
-char *_XawTextGetText(TextWidget, XawTextPosition, XawTextPosition);
-void _XawTextPrepareToUpdate(TextWidget);
-int _XawTextReplace(TextWidget, XawTextPosition, XawTextPosition,
- XawTextBlock*);
-Atom *_XawTextSelectionList(TextWidget, String*, Cardinal);
-void _XawTextSetSelection(TextWidget, XawTextPosition, XawTextPosition,
- String*, Cardinal);
-void _XawTextVScroll(TextWidget, int);
-void XawTextScroll(TextWidget, int, int);
-void _XawTextSetLineAndColumnNumber(TextWidget, Bool);
-
-#ifndef OLDXAW
-/*
- * Defined in TextSrc.c
- */
-Bool _XawTextSrcUndo(TextSrcObject, XawTextPosition*);
-Bool _XawTextSrcToggleUndo(TextSrcObject);
-void _XawSourceSetUndoErase(TextSrcObject, int);
-void _XawSourceSetUndoMerge(TextSrcObject, Bool);
-#endif /* OLDXAW */
-
-/*
- * Initialization
- */
-#ifndef OLDXAW
-#define MAX_KILL_RINGS 1024
-XawTextKillRing *xaw_text_kill_ring;
-static XawTextKillRing kill_ring_prev, kill_ring_null = { &kill_ring_prev, };
-static unsigned num_kill_rings;
-#endif
-
-/*
- * Implementation
- */
-static void
-ParameterError(Widget w, String param)
-{
- String params[2];
- Cardinal num_params = 2;
- params[0] = XtName(w);
- params[1] = param;
-
- XtAppWarningMsg(XtWidgetToApplicationContext(w),
- "parameterError", "textAction", "XawError",
- "Widget: %s Parameter: %s",
- params, &num_params);
- XBell(XtDisplay(w), 50);
-}
-
-static void
-StartAction(TextWidget ctx, XEvent *event)
-{
-#ifndef OLDXAW
- Cardinal i;
- TextSrcObject src = (TextSrcObject)ctx->text.source;
-
- for (i = 0; i < src->textSrc.num_text; i++)
- _XawTextPrepareToUpdate((TextWidget)src->textSrc.text[i]);
- _XawSourceSetUndoMerge(src, False);
-#else
- _XawTextPrepareToUpdate(ctx);
-#endif
-
- if (event != NULL) {
- switch (event->type) {
- case ButtonPress:
- case ButtonRelease:
- ctx->text.time = event->xbutton.time;
- break;
- case KeyPress:
- case KeyRelease:
- ctx->text.time = event->xkey.time;
- break;
- case MotionNotify:
- ctx->text.time = event->xmotion.time;
- break;
- case EnterNotify:
- case LeaveNotify:
- ctx->text.time = event->xcrossing.time;
- }
- }
-}
-
-static void
-NotePosition(TextWidget ctx, XEvent *event)
-{
- switch (event->type) {
- case ButtonPress:
- case ButtonRelease:
- ctx->text.ev_x = event->xbutton.x;
- ctx->text.ev_y = event->xbutton.y;
- break;
- case KeyPress:
- case KeyRelease: {
- XRectangle cursor;
- XawTextSinkGetCursorBounds(ctx->text.sink, &cursor);
- ctx->text.ev_x = cursor.x + cursor.width / 2;
- ctx->text.ev_y = cursor.y + cursor.height / 2;
- } break;
- case MotionNotify:
- ctx->text.ev_x = event->xmotion.x;
- ctx->text.ev_y = event->xmotion.y;
- break;
- case EnterNotify:
- case LeaveNotify:
- ctx->text.ev_x = event->xcrossing.x;
- ctx->text.ev_y = event->xcrossing.y;
- }
-}
-
-static void
-EndAction(TextWidget ctx)
-{
-#ifndef OLDXAW
- Cardinal i;
- TextSrcObject src = (TextSrcObject)ctx->text.source;
-
- for (i = 0; i < src->textSrc.num_text; i++)
- _XawTextExecuteUpdate((TextWidget)src->textSrc.text[i]);
-
- ctx->text.mult = 1;
- ctx->text.numeric = False;
- if (ctx->text.kill_ring) {
- if (--ctx->text.kill_ring == KILL_RING_YANK_DONE) {
- if (ctx->text.kill_ring_ptr) {
- --ctx->text.kill_ring_ptr->refcount;
- ctx->text.kill_ring_ptr = NULL;
- }
- }
- }
-#else
- ctx->text.mult = 1;
- _XawTextExecuteUpdate(ctx);
-#endif /* OLDXAW */
-}
-
-struct _SelectionList {
- String* params;
- Cardinal count;
- Time time;
- int asked; /* which selection currently has been asked for:
- 0 = UTF8_STRING, 1 = COMPOUND_TEXT, 2 = STRING */
- Atom selection; /* selection atom (normally XA_PRIMARY) */
-};
-
-/*ARGSUSED*/
-static void
-_SelectionReceived(Widget w, XtPointer client_data, Atom *selection,
- Atom *type, XtPointer value, unsigned long *length,
- int *format)
-{
- Display *d = XtDisplay(w);
- TextWidget ctx = (TextWidget)w;
- XawTextBlock text;
-
- if (*type == 0 /*XT_CONVERT_FAIL*/ || *length == 0) {
- struct _SelectionList* list = (struct _SelectionList*)client_data;
-
- if (list != NULL) {
- if (list->asked == 0) {
- /* If we just asked for XA_UTF8_STRING and got no response,
- we'll ask again, this time for XA_COMPOUND_TEXT. */
- list->asked++;
- XtGetSelectionValue(w, list->selection, XA_COMPOUND_TEXT(d),
- _SelectionReceived,
- (XtPointer)list, list->time);
- } else if (list->asked == 1) {
- /* If we just asked for XA_COMPOUND_TEXT and got no response,
- we'll ask again, this time for XA_STRING. */
- list->asked++;
- XtGetSelectionValue(w, list->selection, XA_STRING,
- _SelectionReceived,
- (XtPointer)list, list->time);
- } else {
- /* We tried all possible text targets in this param.
- Recurse on the tail of the params list. */
- GetSelection(w, list->time, list->params, list->count);
- XtFree(client_data);
- }
- }
- return;
- }
-
- StartAction(ctx, NULL);
- if (XawTextFormat(ctx, XawFmtWide)) {
- XTextProperty textprop;
- wchar_t **wlist;
- int count;
-
- textprop.encoding = *type;
- textprop.value = (unsigned char *)value;
- textprop.nitems = strlen(value);
- textprop.format = 8;
-
- if (XwcTextPropertyToTextList(d, &textprop, &wlist, &count)
- != Success
- || count < 1) {
- XwcFreeStringList(wlist);
-
- /* Notify the user on strerr and in the insertion :) */
- fprintf(stderr, "Xaw Text Widget: An attempt was made to insert "
- "an illegal selection.\n");
-
- textprop.value = (unsigned char *)" >> ILLEGAL SELECTION << ";
- textprop.nitems = strlen((char *) textprop.value);
- if (XwcTextPropertyToTextList(d, &textprop, &wlist, &count)
- != Success
- || count < 1)
- return;
- }
-
- XFree(value);
- value = (XPointer)wlist[0];
-
- *length = wcslen(wlist[0]);
- XtFree((XtPointer)wlist);
- text.format = XawFmtWide;
- }
- text.ptr = (char*)value;
- text.firstPos = 0;
- text.length = *length;
- if (_XawTextReplace(ctx, ctx->text.insertPos, ctx->text.insertPos, &text)) {
- XBell(XtDisplay(ctx), 0);
- EndAction(ctx);
- return;
- }
-
- ctx->text.from_left = -1;
- ctx->text.insertPos = SrcScan(ctx->text.source, ctx->text.old_insert,
- XawstPositions, XawsdRight, text.length, True);
-
- EndAction(ctx);
- XtFree(client_data);
- XFree(value); /* the selection value should be freed with XFree */
-}
-
-static void
-GetSelection(Widget w, Time timev, String *params, Cardinal num_params)
-{
- Display *d = XtDisplay(w);
- TextWidget ctx = (TextWidget)w;
- Atom selection;
- int buffer;
-
- selection = XInternAtom(XtDisplay(w), *params, False);
- switch (selection) {
- case XA_CUT_BUFFER0: buffer = 0; break;
- case XA_CUT_BUFFER1: buffer = 1; break;
- case XA_CUT_BUFFER2: buffer = 2; break;
- case XA_CUT_BUFFER3: buffer = 3; break;
- case XA_CUT_BUFFER4: buffer = 4; break;
- case XA_CUT_BUFFER5: buffer = 5; break;
- case XA_CUT_BUFFER6: buffer = 6; break;
- case XA_CUT_BUFFER7: buffer = 7; break;
- default: buffer = -1;
- }
- if (buffer >= 0) {
- int nbytes;
- unsigned long length;
- int fmt8 = 8;
- Atom type = XA_STRING;
- char *line = XFetchBuffer(XtDisplay(w), &nbytes, buffer);
-
- if ((length = nbytes) != 0L)
- _SelectionReceived(w, NULL, &selection, &type, line, &length, &fmt8);
- else if (num_params > 1)
- GetSelection(w, timev, params+1, num_params-1);
- }
- else {
- struct _SelectionList* list;
-
- if (--num_params) {
- list = XtNew(struct _SelectionList);
- list->params = params + 1;
- list->count = num_params;
- list->time = timev;
- list->asked = 0;
- list->selection = selection;
- }
- else
- list = NULL;
- XtGetSelectionValue(w, selection, XawTextFormat(ctx, XawFmtWide) ?
- XA_UTF8_STRING(d) : XA_TEXT(d),
- _SelectionReceived, (XtPointer)list, timev);
- }
-}
-
-static void
-InsertSelection(Widget w, XEvent *event, String *params, Cardinal *num_params)
-{
- StartAction((TextWidget)w, event); /* Get Time. */
- GetSelection(w, ((TextWidget)w)->text.time, params, *num_params);
- EndAction((TextWidget)w);
-}
-
-/*
- * Routines for Moving Around
- */
-static void
-Move(TextWidget ctx, XEvent *event, XawTextScanDirection dir,
- XawTextScanType type, Bool include)
-{
- XawTextPosition insertPos;
- short mult = MULT(ctx);
-
- if (mult < 0) {
- mult = -mult;
- dir = dir == XawsdLeft ? XawsdRight : XawsdLeft;
- }
-
- insertPos = SrcScan(ctx->text.source, ctx->text.insertPos,
- type, dir, mult, include);
-
- StartAction(ctx, event);
-
- if (ctx->text.s.left != ctx->text.s.right)
- XawTextUnsetSelection((Widget)ctx);
-
-#ifndef OLDXAW
- ctx->text.numeric = False;
-#endif
- ctx->text.mult = 1;
- ctx->text.showposition = True;
- ctx->text.from_left = -1;
- ctx->text.insertPos = insertPos;
- EndAction(ctx);
-}
-
-/*ARGSUSED*/
-static void
-MoveForwardChar(Widget w, XEvent *event, String *p, Cardinal *n)
-{
- Move((TextWidget)w, event, XawsdRight, XawstPositions, True);
-}
-
-/*ARGSUSED*/
-static void
-MoveBackwardChar(Widget w, XEvent *event, String *p, Cardinal *n)
-{
- Move((TextWidget)w, event, XawsdLeft, XawstPositions, True);
-}
-
-static void
-MoveForwardWord(Widget w, XEvent *event, String *p, Cardinal *n)
-{
- if (*n && (p[0][0] == 'A' || p[0][0] == 'a'))
- Move((TextWidget)w, event, XawsdRight, XawstAlphaNumeric, False);
- else
- Move((TextWidget)w, event, XawsdRight, XawstWhiteSpace, False);
-}
-
-static void
-MoveBackwardWord(Widget w, XEvent *event, String *p, Cardinal *n)
-{
- if (*n && (p[0][0] == 'A' || p[0][0] == 'a'))
- Move((TextWidget)w, event, XawsdLeft, XawstAlphaNumeric, False);
- else
- Move((TextWidget)w, event, XawsdLeft, XawstWhiteSpace, False);
-}
-
-static void
-MoveForwardParagraph(Widget w, XEvent *event, String *p, Cardinal *n)
-{
- TextWidget ctx = (TextWidget)w;
- XawTextPosition position = ctx->text.insertPos;
- short mult = MULT(ctx);
-
- if (mult < 0) {
- ctx->text.mult = -mult;
- MoveBackwardParagraph(w, event, p, n);
- return;
- }
-
- while (mult--) {
- position = SrcScan(ctx->text.source, position,
- XawstEOL, XawsdRight, 1, False) - 1;
-
- while (position == SrcScan(ctx->text.source, position,
- XawstEOL, XawsdRight, 1, False))
- if (++position > ctx->text.lastPos) {
- mult = 0;
- break;
- }
-
- position = SrcScan(ctx->text.source, position,
- XawstParagraph, XawsdRight, 1, True);
- if (position != ctx->text.lastPos)
- position = SrcScan(ctx->text.source, position - 1,
- XawstEOL, XawsdLeft, 1, False);
- else
- break;
- }
-
- if (position != ctx->text.insertPos) {
- XawTextUnsetSelection(w);
- StartAction(ctx, event);
- ctx->text.showposition = True;
- ctx->text.from_left = -1;
- ctx->text.insertPos = position;
- EndAction(ctx);
- }
- else
- ctx->text.mult = 1;
-}
-
-/*ARGSUSED*/
-static void
-MoveBackwardParagraph(Widget w, XEvent *event, String *p, Cardinal *n)
-{
- TextWidget ctx = (TextWidget)w;
- XawTextPosition position = ctx->text.insertPos;
- short mult = MULT(ctx);
-
- if (mult < 0) {
- ctx->text.mult = -mult;
- MoveForwardParagraph(w, event, p, n);
- return;
- }
-
- while (mult--) {
- position = SrcScan(ctx->text.source, position,
- XawstEOL, XawsdLeft, 1, False) + 1;
-
- while (position == SrcScan(ctx->text.source, position,
- XawstEOL, XawsdLeft, 1, False))
- if (--position < 0) {
- mult = 0;
- break;
- }
-
- position = SrcScan(ctx->text.source, position,
- XawstParagraph, XawsdLeft, 1, True);
- if (position > 0 && position < ctx->text.lastPos)
- ++position;
- else
- break;
- }
-
- if (position != ctx->text.insertPos) {
- XawTextUnsetSelection(w);
- StartAction(ctx, event);
- ctx->text.showposition = True;
- ctx->text.from_left = -1;
- ctx->text.insertPos = position;
- EndAction(ctx);
- }
- else
- ctx->text.mult = 1;
-}
-
-/*ARGSUSED*/
-static void
-MoveToLineEnd(Widget w, XEvent *event, String *p, Cardinal *n)
-{
- Move((TextWidget)w, event, XawsdRight, XawstEOL, False);
-}
-
-/*ARGSUSED*/
-static void
-MoveToLineStart(Widget w, XEvent *event, String *p, Cardinal *n)
-{
- Move((TextWidget)w, event, XawsdLeft, XawstEOL, False);
-}
-
-static void
-MoveLine(TextWidget ctx, XEvent *event, XawTextScanDirection dir)
-{
- XawTextPosition cnew, next_line, ltemp;
- int itemp, from_left;
- short mult = MULT(ctx);
-
- StartAction(ctx, event);
-
- XawTextUnsetSelection((Widget)ctx);
-
- if (dir == XawsdLeft)
- mult = mult == 0 ? 5 : mult + 1;
-
- cnew = SrcScan(ctx->text.source, ctx->text.insertPos,
- XawstEOL, XawsdLeft, 1, False);
-
- if (ctx->text.from_left < 0)
- FindDist(ctx->text.sink, cnew, ctx->text.left_margin, ctx->text.insertPos,
- &ctx->text.from_left, <emp, &itemp);
-
- cnew = SrcScan(ctx->text.source, ctx->text.insertPos, XawstEOL, dir,
- mult, (dir == XawsdRight));
-
- next_line = SrcScan(ctx->text.source, cnew, XawstEOL, XawsdRight, 1, False);
-
- FindPos(ctx->text.sink, cnew, ctx->text.left_margin, ctx->text.from_left,
- False, &ctx->text.insertPos, &from_left, &itemp);
-
- if (from_left < ctx->text.from_left) {
- XawTextBlock block;
-
- XawTextSourceRead(ctx->text.source, ctx->text.insertPos, &block, 1);
- if (block.length) {
- if (XawTextFormat(ctx, XawFmtWide)) {
- if (*(wchar_t *)block.ptr == _Xaw_atowc(XawTAB))
- ++ctx->text.insertPos;
- }
- else if (block.ptr[0] == XawTAB)
- ++ctx->text.insertPos;
- }
- }
-
- if (ctx->text.insertPos > next_line)
- ctx->text.insertPos = next_line;
-
- EndAction(ctx);
-}
-
-static void
-MoveNextLine(Widget w, XEvent *event, String *p, Cardinal *n)
-{
- TextWidget ctx = (TextWidget)w;
- short mult = MULT(ctx);
-
- if (mult < 0) {
- ctx->text.mult = -mult;
- MovePreviousLine(w, event, p, n);
- return;
- }
-
- if (ctx->text.insertPos < ctx->text.lastPos)
- MoveLine(ctx, event, XawsdRight);
- else
- ctx->text.mult = 1;
-}
-
-static void
-MovePreviousLine(Widget w, XEvent *event, String *p, Cardinal *n)
-{
- TextWidget ctx = (TextWidget)w;
- short mult = MULT(ctx);
-
- if (mult < 0) {
- ctx->text.mult = -mult;
- MoveNextLine(w, event, p, n);
- return;
- }
-
- if (ctx->text.lt.top != 0 || (ctx->text.lt.lines > 1 &&
- ctx->text.insertPos >= ctx->text.lt.info[1].position))
- MoveLine(ctx, event, XawsdLeft);
- else
- ctx->text.mult = 1;
-}
-
-/*ARGSUSED*/
-static void
-MoveBeginningOfFile(Widget w, XEvent *event, String *p, Cardinal *n)
-{
- Move((TextWidget)w, event, XawsdLeft, XawstAll, True);
-}
-
-/*ARGSUSED*/
-static void
-MoveEndOfFile(Widget w, XEvent *event, String *p, Cardinal *n)
-{
- Move((TextWidget)w, event, XawsdRight, XawstAll, True);
-}
-
-static void
-Scroll(TextWidget ctx, XEvent *event, XawTextScanDirection dir)
-{
- short mult = MULT(ctx);
-
- if (mult < 0) {
- mult = -mult;
- dir = dir == XawsdLeft ? XawsdRight : XawsdLeft;
- }
-
- if (ctx->text.lt.lines > 1
- && (dir == XawsdRight
- || ctx->text.lastPos >= ctx->text.lt.info[1].position)) {
- StartAction(ctx, event);
-
- if (dir == XawsdLeft)
- _XawTextVScroll(ctx, mult);
- else
- _XawTextVScroll(ctx, -mult);
-
- EndAction(ctx);
- }
- else {
- ctx->text.mult = 1;
-#ifndef OLDXAW
- ctx->text.numeric = False;
-#endif
- }
-}
-
-/*ARGSUSED*/
-static void
-ScrollOneLineUp(Widget w, XEvent *event, String *p, Cardinal *n)
-{
- Scroll((TextWidget)w, event, XawsdLeft);
-}
-
-/*ARGSUSED*/
-static void
-ScrollOneLineDown(Widget w, XEvent *event, String *p, Cardinal *n)
-{
- Scroll((TextWidget)w, event, XawsdRight);
-}
-
-static void
-MovePage(TextWidget ctx, XEvent *event, XawTextScanDirection dir)
-{
- int scroll_val = 0;
- XawTextPosition old_pos;
-
- ctx->text.from_left = -1;
- switch (dir) {
- case XawsdLeft:
- if (ctx->text.lt.top != 0)
- scroll_val = -Max(1, ctx->text.lt.lines - 1);
- break;
- case XawsdRight:
- if (!IsPositionVisible(ctx, Max(0, ctx->text.lastPos)))
- scroll_val = Max(1, ctx->text.lt.lines - 1);
- break;
- }
-
- if (scroll_val)
- XawTextScroll(ctx, scroll_val,
- ctx->text.left_margin - ctx->text.r_margin.left);
-
- old_pos = ctx->text.insertPos;
- switch (dir) {
- case XawsdRight:
- if (IsPositionVisible(ctx, Max(0, ctx->text.lastPos)))
- ctx->text.insertPos = Max(0, ctx->text.lastPos);
- else
- ctx->text.insertPos = ctx->text.lt.top;
- if (ctx->text.insertPos < old_pos)
- ctx->text.insertPos = SrcScan(ctx->text.source, old_pos,
- XawstEOL, XawsdLeft, 1, False);
- break;
- case XawsdLeft:
- if (IsPositionVisible(ctx, 0))
- ctx->text.insertPos = 0;
- else if (ctx->text.lt.lines)
- ctx->text.insertPos =
- ctx->text.lt.info[ctx->text.lt.lines - 1].position;
- else
- ctx->text.insertPos = ctx->text.lt.top;
- if (ctx->text.insertPos > old_pos)
- ctx->text.insertPos = SrcScan(ctx->text.source, old_pos,
- XawstEOL, XawsdLeft, 1, False);
- break;
- }
-}
-
-static void
-MoveNextPage(Widget w, XEvent *event, String *p, Cardinal *n)
-{
- TextWidget ctx = (TextWidget)w;
- short mult = MULT(ctx);
-
- if (mult < 0) {
- ctx->text.mult = -mult;
- MovePreviousPage(w, event, p, n);
- return;
- }
-
- if (ctx->text.insertPos < ctx->text.lastPos) {
- XawTextUnsetSelection(w);
- StartAction(ctx, event);
- ctx->text.clear_to_eol = True;
- while (mult-- && ctx->text.insertPos < ctx->text.lastPos)
- MovePage(ctx, event, XawsdRight);
- EndAction(ctx);
- }
- else
- ctx->text.mult = 1;
-}
-
-/*ARGSUSED*/
-static void
-MovePreviousPage(Widget w, XEvent *event, String *p, Cardinal *n)
-{
- TextWidget ctx = (TextWidget)w;
- short mult = MULT(ctx);
-
- if (mult < 0) {
- ctx->text.mult = -mult;
- MoveNextPage(w, event, p, n);
- return;
- }
-
- if (ctx->text.insertPos > 0) {
- XawTextUnsetSelection(w);
- StartAction(ctx, event);
- ctx->text.clear_to_eol = True;
- while (mult-- && ctx->text.insertPos > 0)
- MovePage(ctx, event, XawsdLeft);
- EndAction(ctx);
- }
- else
- ctx->text.mult = 1;
-}
-
-/*
- * Delete Routines
- */
-static Bool
-MatchSelection(Atom selection, XawTextSelection *s)
-{
- Atom *match;
- int count;
-
- for (count = 0, match = s->selections; count < s->atom_count;
- match++, count++)
- if (*match == selection)
- return (True);
-
- return (False);
-}
-
-#define SrcCvtSel XawTextSourceConvertSelection
-
-static Boolean
-ConvertSelection(Widget w, Atom *selection, Atom *target, Atom *type,
- XtPointer *value, unsigned long *length, int *format)
-{
- Display *d = XtDisplay(w);
- TextWidget ctx = (TextWidget)w;
- Widget src = ctx->text.source;
- XawTextEditType edit_mode;
- Arg args[1];
- XawTextSelectionSalt *salt = NULL;
- XawTextSelection *s;
-
- if (*target == XA_TARGETS(d)) {
- Atom *targetP, *std_targets;
- unsigned long std_length;
-
- if (SrcCvtSel(src, selection, target, type, value, length, format))
- return (True);
-
- XtSetArg(args[0], XtNeditType,&edit_mode);
- XtGetValues(src, args, 1);
-
- XmuConvertStandardSelection(w, ctx->text.time, selection,
- target, type, (XPointer *)&std_targets,
- &std_length, format);
-
- *length = 7 + (edit_mode == XawtextEdit) + std_length;
- *value = XtMalloc((unsigned)sizeof(Atom)*(*length));
- targetP = *(Atom**)value;
- *targetP++ = XA_STRING;
- *targetP++ = XA_TEXT(d);
- *targetP++ = XA_UTF8_STRING(d);
- *targetP++ = XA_COMPOUND_TEXT(d);
- *targetP++ = XA_LENGTH(d);
- *targetP++ = XA_LIST_LENGTH(d);
- *targetP++ = XA_CHARACTER_POSITION(d);
- if (edit_mode == XawtextEdit) {
- *targetP++ = XA_DELETE(d);
- }
- memcpy((char*)targetP, (char*)std_targets, sizeof(Atom)*std_length);
- XtFree((char*)std_targets);
- *type = XA_ATOM;
- *format = 32;
- return (True);
- }
-
- if (SrcCvtSel(src, selection, target, type, value, length, format))
- return (True);
-
- for (salt = ctx->text.salt2; salt; salt = salt->next)
- if (MatchSelection (*selection, &salt->s))
- break;
- if (!salt)
- return (False);
- s = &salt->s;
- if (*target == XA_STRING
- || *target == XA_TEXT(d)
- || *target == XA_UTF8_STRING(d)
- || *target == XA_COMPOUND_TEXT(d)) {
- if (*target == XA_TEXT(d)) {
- if (XawTextFormat(ctx, XawFmtWide))
- *type = XA_COMPOUND_TEXT(d);
- else
- *type = XA_STRING;
- }
- else
- *type = *target;
-
- /*
- * If salt is True, the salt->contents stores CT string,
- * its length is measured in bytes.
- * Refer to _XawTextSaltAwaySelection()
- *
- * by Li Yuhong, Mar. 20, 1991.
- */
- if (!salt) {
- *value = (char *)_XawTextGetSTRING(ctx, s->left, s->right);
- if (XawTextFormat(ctx, XawFmtWide)) {
- XTextProperty textprop;
- if (XwcTextListToTextProperty(d, (wchar_t**)value, 1,
- XCompoundTextStyle, &textprop)
- < Success) {
- XtFree(*value);
- return (False);
- }
- XtFree(*value);
- *value = (XtPointer)textprop.value;
- *length = textprop.nitems;
- }
- else
- *length = strlen(*value);
- }
- else {
- *value = XtMalloc((salt->length + 1) * sizeof(unsigned char));
- strcpy (*value, salt->contents);
- *length = salt->length;
- }
- /* Got *value,*length, now in COMPOUND_TEXT format. */
- if (XawTextFormat(ctx, XawFmtWide)) {
- if (*type == XA_STRING) {
- XTextProperty textprop;
- wchar_t **wlist;
- int count;
-
- textprop.encoding = XA_COMPOUND_TEXT(d);
- textprop.value = (unsigned char *)*value;
- textprop.nitems = strlen(*value);
- textprop.format = 8;
- if (XwcTextPropertyToTextList(d, &textprop, &wlist, &count)
- < Success
- || count < 1) {
- XtFree(*value);
- return (False);
- }
- XtFree(*value);
- if (XwcTextListToTextProperty(d, wlist, 1, XStringStyle, &textprop)
- < Success) {
- XwcFreeStringList((wchar_t**)wlist);
- return (False);
- }
- *value = (XtPointer)textprop.value;
- *length = textprop.nitems;
- XwcFreeStringList((wchar_t**) wlist);
- }
- else if (*type == XA_UTF8_STRING(d)) {
- XTextProperty textprop;
- char **list;
- int count;
-
- textprop.encoding = XA_COMPOUND_TEXT(d);
- textprop.value = (unsigned char *)*value;
- textprop.nitems = strlen(*value);
- textprop.format = 8;
- if (Xutf8TextPropertyToTextList(d, &textprop, &list, &count)
- < Success
- || count < 1) {
- XtFree(*value);
- return (False);
- }
- XtFree(*value);
- *value = *list;
- *length = strlen(*list);
- XFree(list);
- }
- }
- *format = 8;
- return (True);
- }
-
- if (*target == XA_LIST_LENGTH(d) || *target == XA_LENGTH(d)) {
- long *temp;
-
- temp = (long *)XtMalloc(sizeof(long));
- if (*target == XA_LIST_LENGTH(d))
- *temp = 1L;
- else /* *target == XA_LENGTH(d) */
- *temp = (long)(s->right - s->left);
-
- *value = (XPointer)temp;
- *type = XA_INTEGER;
- *length = 1L;
- *format = 32;
- return (True);
- }
-
- if (*target == XA_CHARACTER_POSITION(d)) {
- long *temp;
-
- temp = (long *) XtMalloc(2 * sizeof(long));
- temp[0] = (long)(s->left + 1);
- temp[1] = s->right;
- *value = (XPointer)temp;
- *type = XA_SPAN(d);
- *length = 2L;
- *format = 32;
- return (True);
- }
-
- if (*target == XA_DELETE(d)) {
- if (!salt)
- _XawTextZapSelection(ctx, NULL, True);
- *value = NULL;
- *type = XA_NULL(d);
- *length = 0;
- *format = 32;
- return (True);
- }
-
- if (XmuConvertStandardSelection(w, ctx->text.time, selection, target, type,
- (XPointer *)value, length, format))
- return (True);
-
- return (False);
-}
-
-static void
-LoseSelection(Widget w, Atom *selection)
-{
- _LoseSelection(w, selection, NULL, NULL);
-}
-
-static void
-_LoseSelection(Widget w, Atom *selection, char **contents, int *length)
-{
- TextWidget ctx = (TextWidget)w;
- Atom *atomP;
- int i;
- XawTextSelectionSalt *salt, *prevSalt, *nextSalt;
-
- prevSalt = 0;
- for (salt = ctx->text.salt2; salt; salt = nextSalt) {
- atomP = salt->s.selections;
- nextSalt = salt->next;
- for (i = 0 ; i < salt->s.atom_count; i++, atomP++)
- if (*selection == *atomP)
- *atomP = (Atom)0;
-
- while (salt->s.atom_count
- && salt->s.selections[salt->s.atom_count-1] == 0)
- salt->s.atom_count--;
-
- /*
- * Must walk the selection list in opposite order from UnsetSelection.
- */
- atomP = salt->s.selections;
- for (i = 0 ; i < salt->s.atom_count; i++, atomP++)
- if (*atomP == (Atom)0) {
- *atomP = salt->s.selections[--salt->s.atom_count];
-
- while (salt->s.atom_count
- && salt->s.selections[salt->s.atom_count-1] == 0)
- salt->s.atom_count--;
- }
- if (salt->s.atom_count == 0) {
-#ifndef OLDXAW
- if (contents == NULL) {
- XawTextKillRing *kill_ring = XtNew(XawTextKillRing);
-
- kill_ring->next = xaw_text_kill_ring;
- kill_ring->contents = salt->contents;
- kill_ring->length = salt->length;
- kill_ring->format = XawFmt8Bit;
- xaw_text_kill_ring = kill_ring;
- kill_ring_prev.next = xaw_text_kill_ring;
-
- if (++num_kill_rings > MAX_KILL_RINGS) {
- XawTextKillRing *tail = NULL;
-
- while (kill_ring->next) {
- tail = kill_ring;
- kill_ring = kill_ring->next;
- }
- if (kill_ring->refcount == 0) {
- --num_kill_rings;
- tail->next = NULL;
- XtFree(kill_ring->contents);
- XtFree((char*)kill_ring);
- }
- }
- }
- else {
- *contents = salt->contents;
- *length = salt->length;
- }
-#endif
- if (prevSalt)
- prevSalt->next = nextSalt;
- else
- ctx->text.salt2 = nextSalt;
-
- XtFree((char *)salt->s.selections);
- XtFree((char *)salt);
- }
- else
- prevSalt = salt;
- }
-}
-
-static void
-_DeleteOrKill(TextWidget ctx, XawTextPosition from, XawTextPosition to,
- Bool kill)
-{
- XawTextBlock text;
-
-#ifndef OLDXAW
- if (ctx->text.kill_ring_ptr) {
- --ctx->text.kill_ring_ptr->refcount;
- ctx->text.kill_ring_ptr = NULL;
- }
-#endif
- if (kill && from < to) {
-#ifndef OLDXAW
- Bool append = False;
- char *ring = NULL;
- XawTextPosition old_from = from;
-#endif
- char *string;
- int size = 0, length;
- XawTextSelectionSalt *salt;
- Atom selection = XInternAtom(XtDisplay(ctx), "SECONDARY", False);
-
-#ifndef OLDXAW
- if (ctx->text.kill_ring == KILL_RING_APPEND) {
- old_from = ctx->text.salt2->s.left;
- append = True;
- }
- else
- ctx->text.kill_ring = KILL_RING_BEGIN;
-
- if (append)
- _LoseSelection((Widget)ctx, &selection, &ring, &size);
- else
-#endif
- LoseSelection((Widget)ctx, &selection);
-
- salt = (XawTextSelectionSalt*)XtMalloc(sizeof(XawTextSelectionSalt));
- salt->s.selections = (Atom *)XtMalloc(sizeof(Atom));
- salt->s.left = from;
- salt->s.right = to;
-
- string = (char *)_XawTextGetSTRING(ctx, from, to);
-
- if (XawTextFormat(ctx, XawFmtWide)) {
- XTextProperty textprop;
-
- if (XwcTextListToTextProperty(XtDisplay((Widget)ctx),
- (wchar_t**)(&string),
- 1, XCompoundTextStyle,
- &textprop) < Success) {
- XtFree(string);
- XtFree((char*)salt->s.selections);
- XtFree((char*)salt);
- return;
- }
- XtFree(string);
- string = (char *)textprop.value;
- length = textprop.nitems;
- }
- else
- length = strlen(string);
-
- salt->length = length + size;
-
-#ifndef OLDXAW
- if (!append)
- salt->contents = string;
- else {
- salt->contents = XtMalloc(length + size + 1);
- if (from >= old_from) {
- strncpy(salt->contents, ring, size);
- salt->contents[size] = '\0';
- strncat(salt->contents, string, length);
- }
- else {
- strncpy(salt->contents, string, length);
- salt->contents[length] = '\0';
- strncat(salt->contents, ring, size);
- }
- salt->contents[length + size] = '\0';
- XtFree(ring);
- XtFree(string);
- }
-
- kill_ring_prev.contents = salt->contents;
- kill_ring_prev.length = salt->length;
- kill_ring_prev.format = XawFmt8Bit;
-#else
- salt->contents = string;
-#endif
-
- salt->next = ctx->text.salt2;
- ctx->text.salt2 = salt;
-
-#ifndef OLDXAW
- if (append)
- ctx->text.kill_ring = KILL_RING_BEGIN;
-#endif
-
- salt->s.selections[0] = selection;
-
- XtOwnSelection((Widget)ctx, selection, ctx->text.time,
- ConvertSelection, LoseSelection, NULL);
- salt->s.atom_count = 1;
- }
- text.length = 0;
- text.firstPos = 0;
-
- text.format = _XawTextFormat(ctx);
- text.ptr = "";
-
- if (_XawTextReplace(ctx, from, to, &text)) {
- XBell(XtDisplay(ctx), 50);
- return;
- }
- ctx->text.from_left = -1;
- ctx->text.insertPos = from;
- ctx->text.showposition = TRUE;
-}
-
-static void
-DeleteOrKill(TextWidget ctx, XEvent *event, XawTextScanDirection dir,
- XawTextScanType type, Bool include, Bool kill)
-{
- XawTextPosition from, to;
- short mult = MULT(ctx);
-
- if (mult < 0) {
- mult = -mult;
- dir = dir == XawsdLeft ? XawsdRight : XawsdLeft;
- }
-
- StartAction(ctx, event);
-#ifndef OLDXAW
- if (mult == 1)
- _XawSourceSetUndoMerge((TextSrcObject)ctx->text.source, True);
-#endif
- to = SrcScan(ctx->text.source, ctx->text.insertPos,
- type, dir, mult, include);
-
- /*
- * If no movement actually happened, then bump the count and try again.
- * This causes the character position at the very beginning and end of
- * a boundary to act correctly
- */
- if (to == ctx->text.insertPos)
- to = SrcScan(ctx->text.source, ctx->text.insertPos,
- type, dir, mult + 1, include);
-
- if (dir == XawsdLeft) {
- from = to;
- to = ctx->text.insertPos;
- }
- else
- from = ctx->text.insertPos;
-
- _DeleteOrKill(ctx, from, to, kill);
- EndAction(ctx);
-}
-
-static void
-Delete(Widget w, XEvent *event, String *p, Cardinal *n)
-{
- TextWidget ctx = (TextWidget)w;
-
- if (ctx->text.s.left != ctx->text.s.right)
- DeleteCurrentSelection(w, event, p, n);
- else
- DeleteBackwardChar(w, event, p, n);
-}
-
-static void
-DeleteChar(Widget w, XEvent *event, XawTextScanDirection dir)
-{
- TextWidget ctx = (TextWidget)w;
- short mul = MULT(ctx);
-
- if (mul < 0) {
- ctx->text.mult = mul = -mul;
- dir = dir == XawsdLeft ? XawsdRight : XawsdLeft;
- }
- DeleteOrKill(ctx, event, dir, XawstPositions, True, False);
-#ifndef OLDXAW
- if (mul == 1)
- _XawSourceSetUndoErase((TextSrcObject)ctx->text.source,
- dir == XawsdLeft ? -1 : 1);
-#endif
-}
-
-/*ARGSUSED*/
-static void
-DeleteForwardChar(Widget w, XEvent *event, String *p, Cardinal *n)
-{
- DeleteChar(w, event, XawsdRight);
-}
-
-/*ARGSUSED*/
-static void
-DeleteBackwardChar(Widget w, XEvent *event, String *p, Cardinal *n)
-{
- DeleteChar(w, event, XawsdLeft);
-}
-
-static void
-DeleteForwardWord(Widget w, XEvent *event, String *params, Cardinal *num_params)
-{
- XawTextScanType type;
-
- if (*num_params && (*params[0] == 'A' || *params[0] == 'a'))
- type = XawstAlphaNumeric;
- else
- type = XawstWhiteSpace;
-
- DeleteOrKill((TextWidget)w, event, XawsdRight, type, False, False);
-}
-
-static void
-DeleteBackwardWord(Widget w, XEvent *event, String *params, Cardinal *num_params)
-{
- XawTextScanType type;
-
- if (*num_params && (*params[0] == 'A' || *params[0] == 'a'))
- type = XawstAlphaNumeric;
- else
- type = XawstWhiteSpace;
-
- DeleteOrKill((TextWidget)w, event, XawsdLeft, type, False, False);
-}
-
-static void
-KillForwardWord(Widget w, XEvent *event, String *params, Cardinal *num_params)
-{
- XawTextScanType type;
-
- if (*num_params && (*params[0] == 'A' || *params[0] == 'a'))
- type = XawstAlphaNumeric;
- else
- type = XawstWhiteSpace;
-
- DeleteOrKill((TextWidget)w, event, XawsdRight, type, False, True);
-}
-
-static void
-KillBackwardWord(Widget w, XEvent *event, String *params, Cardinal *num_params)
-{
- XawTextScanType type;
-
- if (*num_params && (*params[0] == 'A' || *params[0] == 'a'))
- type = XawstAlphaNumeric;
- else
- type = XawstWhiteSpace;
-
- DeleteOrKill((TextWidget) w, event, XawsdLeft, type, False, True);
-}
-
-/*ARGSUSED*/
-static void
-KillToEndOfLine(Widget w, XEvent *event, String *p, Cardinal *n)
-{
- TextWidget ctx = (TextWidget)w;
- XawTextPosition end_of_line;
- XawTextScanDirection dir = XawsdRight;
- short mult = MULT(ctx);
-
- if (mult < 0) {
- dir = XawsdLeft;
- mult = -mult;
- }
-
- StartAction(ctx, event);
- end_of_line = SrcScan(ctx->text.source, ctx->text.insertPos, XawstEOL,
- dir, mult, False);
- if (end_of_line == ctx->text.insertPos)
- end_of_line = SrcScan(ctx->text.source, ctx->text.insertPos, XawstEOL,
- dir, mult, True);
-
- if (dir == XawsdRight)
- _DeleteOrKill(ctx, ctx->text.insertPos, end_of_line, True);
- else
- _DeleteOrKill(ctx, end_of_line, ctx->text.insertPos, True);
- EndAction(ctx);
-}
-
-/*ARGSUSED*/
-static void
-KillToEndOfParagraph(Widget w, XEvent *event, String *p, Cardinal *n)
-{
- DeleteOrKill((TextWidget)w, event, XawsdRight, XawstParagraph, False, True);
-}
-
-void
-_XawTextZapSelection(TextWidget ctx, XEvent *event, Bool kill)
-{
- StartAction(ctx, event);
- _DeleteOrKill(ctx, ctx->text.s.left, ctx->text.s.right, kill);
- EndAction(ctx);
-}
-
-/*ARGSUSED*/
-static void
-KillCurrentSelection(Widget w, XEvent *event, String *p, Cardinal *n)
-{
- _XawTextZapSelection((TextWidget) w, event, True);
-}
-
-#ifndef OLDXAW
-/*ARGSUSED*/
-static void
-KillRingYank(Widget w, XEvent *event, String *params, Cardinal *num_params)
-{
- TextWidget ctx = (TextWidget)w;
- XawTextPosition insertPos = ctx->text.insertPos;
- Bool first_yank = False;
-
- if (ctx->text.s.left != ctx->text.s.right)
- XawTextUnsetSelection((Widget)ctx);
-
- StartAction(ctx, event);
-
- if (ctx->text.kill_ring_ptr == NULL) {
- ctx->text.kill_ring_ptr = &kill_ring_prev;
- ++ctx->text.kill_ring_ptr->refcount;
- ctx->text.s.left = ctx->text.s.right = insertPos;
- first_yank = True;
- }
- if (ctx->text.kill_ring_ptr) {
- int mul = MULT(ctx);
- XawTextBlock text;
-
- if (!first_yank) {
- if (mul < 0)
- mul = 1;
- --ctx->text.kill_ring_ptr->refcount;
- while (mul--) {
- if ((ctx->text.kill_ring_ptr = ctx->text.kill_ring_ptr->next) == NULL)
- ctx->text.kill_ring_ptr = &kill_ring_null;
- }
- ++ctx->text.kill_ring_ptr->refcount;
- }
- text.firstPos = 0;
- text.length = ctx->text.kill_ring_ptr->length;
- text.ptr = ctx->text.kill_ring_ptr->contents;
- text.format = ctx->text.kill_ring_ptr->format;
-
- if (_XawTextReplace(ctx, ctx->text.s.left, insertPos, &text) == XawEditDone) {
- ctx->text.kill_ring = KILL_RING_YANK;
- ctx->text.insertPos = ctx->text.s.left + text.length;
- }
- }
- else
- XBell(XtDisplay(w), 0);
-
- EndAction(ctx);
-}
-#endif /* OLDXAW */
-
-/*ARGSUSED*/
-static void
-DeleteCurrentSelection(Widget w, XEvent *event, String *p, Cardinal *n)
-{
- _XawTextZapSelection((TextWidget)w, event, False);
-}
-
-#ifndef OLDXAW
-#define CHECK_SAVE() \
- if (save && !save->ptr) \
- save->ptr = _XawTextGetText(ctx, save->firstPos, \
- save->firstPos + save->length)
-static Bool
-StripSpaces(TextWidget ctx, XawTextPosition left, XawTextPosition right,
- XawTextPosition *pos, int num_pos, XawTextBlock *save)
-{
- Bool done, space;
- int i, cpos, count = 0;
- XawTextBlock block, text;
- XawTextPosition ipos, position = left, tmp = left;
-
- text.firstPos = 0;
- text.format = XawFmt8Bit;
- text.ptr = " ";
- text.length = 1;
-
- position = XawTextSourceRead(ctx->text.source, position,
- &block, right - left);
- done = False;
- space = False;
- /* convert tabs and returns to spaces */
- while (!done) {
- if (XawTextFormat(ctx, XawFmt8Bit)) {
- for (i = 0; i < block.length; i++)
- if (block.ptr[i] == '\t' || block.ptr[i] == '\n') {
- space = True;
- break;
- }
- }
- else {
- wchar_t *wptr = (wchar_t*)block.ptr;
- for (i = 0; i < block.length; i++)
- if (wptr[i] == _Xaw_atowc('\t') || wptr[i] == _Xaw_atowc('\n')) {
- space = True;
- break;
- }
- }
- if (space) {
- CHECK_SAVE();
- if (_XawTextReplace(ctx, tmp + i, tmp + i + 1, &text))
- return (False);
- space = False;
- }
- tmp += i;
- position = XawTextSourceRead(ctx->text.source, tmp,
- &block, right - tmp);
- if (block.length == 0 || tmp == position || tmp >= right)
- done = True;
- }
-
- text.ptr = "";
- text.length = 0;
- position = tmp = left;
- position = XawTextSourceRead(ctx->text.source, position,
- &block, right - left);
- ipos = ctx->text.insertPos;
- done = False;
- while (!done) {
- if (XawTextFormat(ctx, XawFmt8Bit)) {
- for (i = 0; i < block.length; i++)
- if (block.ptr[i] == ' ')
- ++count;
- else if (count == 1)
- count = 0;
- else if (count)
- break;
- }
- else {
- wchar_t *wptr = (wchar_t*)block.ptr;
- for (i = 0; i < block.length; i++)
- if (wptr[i] == _Xaw_atowc(' '))
- ++count;
- else if (count == 1)
- count = 0;
- else if (count)
- break;
- }
- if (--count > 0) {
- CHECK_SAVE();
- if (_XawTextReplace(ctx, tmp + i - count, tmp + i, &text))
- return (False);
- right -= count;
- if (num_pos) {
- for (cpos = 0; cpos < num_pos; cpos++) {
- if (tmp + i - count < pos[cpos]) {
- if (tmp + i < pos[cpos])
- pos[cpos] -= count;
- else
- pos[cpos] = tmp + i - count;
- }
- }
- }
- else {
- if (tmp + i - count < ipos) {
- if (tmp + i < ipos)
- ipos -= count;
- else
- ipos = tmp + i - count;
- }
- }
- tmp += i - count;
- }
- else
- tmp += i + 1;
- count = 0;
- position = XawTextSourceRead(ctx->text.source, tmp,
- &block, right - tmp);
- if (block.length == 0 || tmp == position || tmp >= right)
- done = True;
- }
- if (!num_pos)
- ctx->text.insertPos = ipos;
-
- return (True);
-}
-
-static Bool
-Tabify(TextWidget ctx, XawTextPosition left, XawTextPosition right,
- XawTextPosition *pos, int num_pos, XawTextBlock *save)
-{
- Bool done, zero;
- int i, cpos, count = 0, column = 0, offset = 0;
- XawTextBlock text, block;
- XawTextPosition ipos, position = left, tmp = left;
- TextSinkObject sink = (TextSinkObject)ctx->text.sink;
- short *char_tabs = sink->text_sink.char_tabs;
- int tab_count = sink->text_sink.tab_count;
- int tab_index = 0, tab_column = 0, TAB_SIZE = DEFAULT_TAB_SIZE;
-
- text.firstPos = 0;
- text.ptr = "\t";
- text.format = XawFmt8Bit;
- text.length = 1;
-
- position = XawTextSourceRead(ctx->text.source, position,
- &block, right - left);
- ipos = ctx->text.insertPos;
- done = zero = False;
- if (tab_count)
- TAB_SIZE = *char_tabs;
- while (!done) {
- if (XawTextFormat(ctx, XawFmt8Bit)) {
- for (i = 0; i < block.length; i++) {
- ++offset;
- ++column;
- if (tab_count) {
- if (column > tab_column + char_tabs[tab_index]) {
- TAB_SIZE = tab_index < tab_count - 1 ? char_tabs[tab_index + 1] - char_tabs[tab_index] : *char_tabs;
- if (++tab_index >= tab_count) {
- tab_column += char_tabs[tab_count - 1];
- tab_index = 0;
- }
- }
- }
- if (block.ptr[i] == ' ') {
- if (++count > TAB_SIZE)
- count %= TAB_SIZE;
- if ((tab_count && column == tab_column + char_tabs[tab_index]) ||
- (!tab_count && column % TAB_SIZE == 0)) {
- if (count % (TAB_SIZE + 1) > 1)
- break;
- else
- count = 0;
- }
- }
- else {
- if (block.ptr[i] == '\n') {
- zero = True;
- break;
- }
- count = 0;
- }
- }
- }
- else {
- wchar_t *wptr = (wchar_t*)block.ptr;
- for (i = 0; i < block.length; i++) {
- ++offset;
- ++column;
- if (tab_count) {
- if (column > tab_column + char_tabs[tab_index]) {
- TAB_SIZE = tab_index < tab_count - 1 ? char_tabs[tab_index + 1] - char_tabs[tab_index] : *char_tabs;
- if (++tab_index >= tab_count) {
- tab_column += char_tabs[tab_count - 1];
- tab_index = 0;
- }
- }
- }
- if (wptr[i] == _Xaw_atowc(' ')) {
- if (++count > TAB_SIZE)
- count %= TAB_SIZE;
- if ((tab_count && column == tab_column + char_tabs[tab_index]) ||
- (!tab_count && column % TAB_SIZE == 0)) {
- if (count % (TAB_SIZE + 1) > 1)
- break;
- else
- count = 0;
- }
- }
- else {
- if (wptr[i] == _Xaw_atowc('\n')) {
- zero = True;
- break;
- }
- count = 0;
- }
- }
- }
- count %= TAB_SIZE + 1;
- if (!zero && count > 1 && i < block.length) {
- CHECK_SAVE();
- if (_XawTextReplace(ctx, tmp + i - count + 1, tmp + i + 1, &text))
- return (False);
- right -= count - 1;
- offset -= count - 1;
- if (num_pos) {
- for (cpos = 0; cpos < num_pos; cpos++) {
- if (tmp + i - count + 1 < pos[cpos]) {
- if (tmp + i + 1 < pos[cpos])
- pos[cpos] -= count;
- else
- pos[cpos] = tmp + i - count + 1;
- ++pos[cpos];
- }
- }
- }
- else {
- if (tmp + i - count + 1 < ipos) {
- if (tmp + i + 1 < ipos)
- ipos -= count;
- else
- ipos = tmp + i - count + 1;
- ++ipos;
- }
- }
- }
- if (count)
- --count;
- if (zero) {
- count = column = 0;
- zero = False;
- if (tab_count) {
- tab_column = tab_index = 0;
- TAB_SIZE = *char_tabs;
- }
- }
- else if (i < block.length)
- count = 0;
- tmp = left + offset;
- position = XawTextSourceRead(ctx->text.source, tmp,
- &block, right - tmp);
- if (tmp == position || tmp >= right)
- done = True;
- }
- if (!num_pos)
- ctx->text.insertPos = ipos;
-
- return (True);
-}
-
-static Bool
-Untabify(TextWidget ctx, XawTextPosition left, XawTextPosition right,
- XawTextPosition *pos, int num_pos, XawTextBlock *save)
-{
- Bool done, zero;
- int i, cpos, count = 0, diff = 0;
- XawTextBlock block, text;
- XawTextPosition ipos, position = left, tmp = left;
- TextSinkObject sink = (TextSinkObject)ctx->text.sink;
- short *char_tabs = sink->text_sink.char_tabs;
- int tab_count = sink->text_sink.tab_count;
- int tab_index = 0, tab_column = 0, tab_base = 0;
- static char *tabs = " ";
-
- text.firstPos = 0;
- text.format = XawFmt8Bit;
- text.ptr = tabs;
-
- position = XawTextSourceRead(ctx->text.source, position,
- &block, right - left);
- ipos = ctx->text.insertPos;
- done = False;
- zero = False;
- while (!done) {
- if (XawTextFormat(ctx, XawFmt8Bit))
- for (i = 0; i < block.length; i++) {
- if (block.ptr[i] != '\t') {
- ++count;
- if (block.ptr[i] == '\n') {
- zero = True;
- break;
- }
- }
- else
- break;
- }
- else {
- wchar_t *wptr = (wchar_t*)block.ptr;
- for (i = 0; i < block.length; i++)
- if (wptr[i] != _Xaw_atowc('\t')) {
- ++count;
- if (wptr[i] != _Xaw_atowc('\n')) {
- zero = True;
- break;
- }
- }
- else
- break;
- }
- if (!zero && i < block.length) {
- if (tab_count) {
- while (tab_base + tab_column <= count) {
- for (; tab_index < tab_count; ++tab_index)
- if (tab_base + char_tabs[tab_index] > count) {
- tab_column = char_tabs[tab_index];
- break;
- }
- if (tab_index >= tab_count) {
- tab_base += char_tabs[tab_count - 1];
- tab_column = tab_index = 0;
- }
- }
- text.length = (tab_base + tab_column) - count;
- if (text.length > 8) {
- int j;
-
- text.ptr = XtMalloc(text.length);
- for (j = 0; j < text.length; j++)
- text.ptr[j] = ' ';
- }
- else
- text.ptr = tabs;
- }
- else
- text.length = DEFAULT_TAB_SIZE - (count % DEFAULT_TAB_SIZE);
- CHECK_SAVE();
- if (_XawTextReplace(ctx, tmp + i, tmp + i + 1, &text)) {
- if (tab_count && text.length > 8)
- XtFree(text.ptr);
- return (False);
- }
- if (tab_count && text.length > 8)
- XtFree(text.ptr);
- count += text.length;
- right += text.length - 1;
- if (num_pos) {
- for (cpos = 0; cpos < num_pos; cpos++) {
- if (tmp + i < pos[cpos]) {
- if (tmp + i + 1 < pos[cpos])
- --pos[cpos];
- else
- pos[cpos] = tmp + i;
- pos[cpos] += text.length;
- }
- }
- }
- else {
- if (tmp + i < ipos) {
- if (tmp + i + 1 < ipos)
- --ipos;
- else
- ipos = tmp + i;
- ipos += text.length;
- }
- }
- }
- tmp = left + count + diff;
- if (zero) {
- diff += count;
- count = 0;
- zero = False;
- if (tab_count)
- tab_base = tab_column = tab_index = 0;
- }
- position = XawTextSourceRead(ctx->text.source, tmp,
- &block, right - tmp);
- if (tmp == position || tmp >= right)
- done = True;
- }
- if (!num_pos)
- ctx->text.insertPos = ipos;
-
- return (True);
-}
-
-static int
-FormatText(TextWidget ctx, XawTextPosition left, Bool force,
- XawTextPosition *pos, int num_pos)
-{
- char *ptr = NULL;
- Bool freepos = False, undo, paragraph = pos != NULL;
- int i, result;
- XawTextBlock block, *text;
- XawTextPosition end = ctx->text.lastPos, buf[32];
- TextSrcObject src = (TextSrcObject)ctx->text.source;
- XawTextPosition right = SrcScan(ctx->text.source, left, XawstEOL,
- XawsdRight, 1, False);
-
- undo = src->textSrc.enable_undo && src->textSrc.undo_state == False;
- if (undo) {
- if (!pos) {
- num_pos = src->textSrc.num_text;
- pos = XawStackAlloc(sizeof(XawTextPosition) * num_pos, buf);
- for (i = 0; i < num_pos; i++)
- pos[i] = ((TextWidget)src->textSrc.text[i])->text.insertPos;
- freepos = True;
- }
- else
- freepos = False;
- src->textSrc.undo_state = True;
- block.ptr = NULL;
- block.firstPos = left;
- block.length = right - left;
- text = █
- }
- else
- text = NULL;
-
- result = DoFormatText(ctx, left, force, 1, text, pos, num_pos, paragraph);
- if (undo && result == XawEditDone && block.ptr) {
- char *lbuf, *rbuf;
- unsigned llen, rlen, size;
-
- ptr = lbuf = block.ptr;
- llen = block.length;
- rlen = llen + (ctx->text.lastPos - end);
-
- block.firstPos = 0;
- block.format = _XawTextFormat(ctx);
-
- rbuf = _XawTextGetText(ctx, left, left + rlen);
-
- size = XawTextFormat(ctx, XawFmtWide) ? sizeof(wchar_t) : sizeof(char);
- if (llen != rlen || memcmp(lbuf, rbuf, llen * size)) {
- block.ptr = lbuf;
- block.length = llen;
- _XawTextReplace(ctx, left, left + rlen, &block);
-
- src->textSrc.undo_state = False;
- block.ptr = rbuf;
- block.length = rlen;
- _XawTextReplace(ctx, left, left + llen, &block);
- }
- else
- src->textSrc.undo_state = False;
- XtFree(rbuf);
- }
- if (undo) {
- src->textSrc.undo_state = False;
- if (freepos) {
- for (i = 0; i < num_pos; i++) {
- TextWidget tw = (TextWidget)src->textSrc.text[i];
- tw->text.insertPos = XawMin(XawMax(0, pos[i]), tw->text.lastPos);
- }
- XawStackFree(pos, buf);
- }
- if (ptr)
- XtFree(ptr);
- }
-
- return (result);
-}
-
-static int
-DoFormatText(TextWidget ctx, XawTextPosition left, Bool force, int level,
- XawTextBlock *save, XawTextPosition *pos, int num_pos,
- Bool paragraph)
-{
- XawTextPosition right = SrcScan(ctx->text.source, left, XawstEOL,
- XawsdRight, 1, False);
- XawTextPosition position, tmp, ipos;
- XawTextBlock block, text;
- char buf[128];
- wchar_t *wptr;
- int i, count, cpos;
- Bool done, force2 = force, recurse = False;
-
- position = XawTextSourceRead(ctx->text.source, left, &block, right - left);
- if (block.length == 0 || left >= right ||
- (level == 1 && ((XawTextFormat(ctx, XawFmt8Bit) &&
- block.ptr[0] != ' ' &&
- block.ptr[0] != '\t' &&
- !isalnum(*(unsigned char*)block.ptr)) ||
- (XawTextFormat(ctx, XawFmtWide) &&
- _Xaw_atowc(XawSP) != *(wchar_t*)block.ptr &&
- _Xaw_atowc(XawTAB) != *(wchar_t*)block.ptr &&
- !iswalnum(*(wchar_t*)block.ptr)))))
- return (XawEditDone);
-
- if (level == 1 && !paragraph) {
- tmp = ctx->text.lastPos;
- if (Untabify(ctx, left, right, pos, num_pos, save) == False)
- return (XawEditError);
- right += ctx->text.lastPos - tmp;
- position = XawTextSourceRead(ctx->text.source, left, &block,
- right - left);
- }
-
- text.firstPos = 0;
- text.format = XawFmt8Bit;
-
- ipos = ctx->text.insertPos;
- count = 0;
- done = False;
- while (!done) {
- if (XawTextFormat(ctx, XawFmt8Bit)) {
- for (i = 0; i < block.length; i++)
- if (block.ptr[i] == ' ')
- ++count;
- else {
- done = True;
- break;
- }
- }
- else {
- wptr = (wchar_t*)block.ptr;
- for (i = 0; i < block.length; i++)
- if (wptr[i] == _Xaw_atowc(' '))
- ++count;
- else {
- done = True;
- break;
- }
- }
- tmp = position;
- position = XawTextSourceRead(ctx->text.source, position,
- &block, right - position);
- if (tmp == position)
- done = True;
- }
- position = left + count;
- if (count < ctx->text.left_column) {
- int bytes = ctx->text.left_column - count;
-
- text.ptr = XawStackAlloc(bytes, buf);
- text.length = bytes;
- for (i = 0; i < bytes; i++)
- text.ptr[i] = ' ';
- CHECK_SAVE();
- if (_XawTextReplace(ctx, left, left, &text)) {
- XawStackFree(text.ptr, buf);
- return (XawEditError);
- }
- XawStackFree(text.ptr, buf);
- right += bytes;
- if (num_pos) {
- for (cpos = 0; cpos < num_pos; cpos++)
- if (pos[cpos] >= left)
- pos[cpos] += bytes;
- }
- if (ipos >= left)
- ipos += bytes;
- count += bytes;
- }
-
- done = False;
- if (!paragraph && level == 1
- && ipos <= right && ipos - left > ctx->text.right_column) {
- XawTextPosition len = ctx->text.lastPos;
- int skip = ctx->text.justify == XawjustifyRight
- || ctx->text.justify == XawjustifyCenter ?
- ctx->text.left_column : count;
-
- if (pos)
- for (i = 0; i < num_pos; i++)
- if (pos[i] == ipos)
- break;
-
- StripSpaces(ctx, left + skip, right, pos, num_pos, save);
- right += ctx->text.lastPos - len;
- if (pos && i < num_pos)
- ipos = pos[i];
- else
- ipos = ctx->text.insertPos;
- done = ipos - left > ctx->text.right_column;
- count = skip + (count == skip + 1);
- }
- if ((paragraph || done) && right - left > ctx->text.right_column) {
- position = tmp = right;
- XawTextSourceRead(ctx->text.source, position - 1, &block, 1);
- if (block.length &&
- ((XawTextFormat(ctx, XawFmt8Bit) &&
- block.ptr[0] == ' ') ||
- (XawTextFormat(ctx, XawFmtWide) &&
- _Xaw_atowc(XawSP) == *(wchar_t*)block.ptr)))
- --position;
- while (position - left > ctx->text.right_column) {
- tmp = position;
- position = SrcScan(ctx->text.source, position,
- XawstWhiteSpace, XawsdLeft, 1, True);
- }
- if (position <= left + ctx->text.left_column)
- position = tmp;
- if (position > left && position - left > ctx->text.left_column
- && position != right) {
- text.ptr = "\n";
- text.length = 1;
- CHECK_SAVE();
- if (_XawTextReplace(ctx, position, position + 1, &text))
- return (XawEditError);
- right = position;
- recurse = True;
- force = True;
- }
- }
-
- if (force) {
- if (ctx->text.justify == XawjustifyCenter)
- count = ctx->text.right_column - (count - ctx->text.left_column);
- else
- count = ctx->text.right_column;
- if (count > right - left)
- count -= right - left;
- else
- count = 0;
- }
- else
- count = 0;
- if (count > 0) {
- switch (ctx->text.justify) {
- case XawjustifyLeft:
- break;
- case XawjustifyRight:
- case XawjustifyCenter:
- if (ctx->text.justify == XawjustifyCenter) {
- int alnum = 0;
-
- if (!(count & 1)) {
- XawTextSourceRead(ctx->text.source, right, &block, 1);
- if ((XawTextFormat(ctx, XawFmt8Bit)
- && isalnum(*(unsigned char*)block.ptr)) ||
- (XawTextFormat(ctx, XawFmtWide)
- && iswalnum(*(wchar_t*)block.ptr)))
- alnum = 1;
- }
- count = (count + alnum) >> 1;
- }
- text.ptr = XawStackAlloc(count, buf);
- text.length = count;
- for (i = 0; i < count; i++)
- text.ptr[i] = ' ';
- CHECK_SAVE();
- if (_XawTextReplace(ctx, left, left, &text)) {
- XawStackFree(text.ptr, buf);
- return (XawEditError);
- }
- XawStackFree(text.ptr, buf);
- position += count;
- right += count;
- if (num_pos) {
- for (cpos = 0; cpos < num_pos; cpos++)
- if (pos[cpos] > left)
- pos[cpos] += count;
- }
- else if (ipos > left)
- ipos += count;
- break;
- case XawjustifyFull:
- i = 0;
- tmp = left;
- /*CONSTCOND*/
- while (True) {
- tmp = SrcScan(ctx->text.source, tmp, XawstWhiteSpace,
- XawsdRight, 1, True);
- if (tmp < right)
- ++i;
- else
- break;
- }
- if (i) {
- double inc, ii;
- int bytes, steps;
-
- bytes = count;
- inc = ii = (count + .5) / (double)i;
-
- steps = count;
- text.ptr = XawStackAlloc(steps, buf);
- for (i = 0; i < steps; i++)
- text.ptr[i] = ' ';
- tmp = left;
- CHECK_SAVE();
- while (bytes) {
- steps = 1;
- while (inc + ii < 1) {
- ++steps;
- inc += ii;
- }
- tmp = SrcScan(ctx->text.source, tmp, XawstWhiteSpace,
- XawsdRight, steps, True);
- if (bytes > inc)
- text.length = (int)inc;
- else
- text.length = bytes;
- bytes -= text.length;
- if (_XawTextReplace(ctx, tmp, tmp, &text)) {
- XawStackFree(buf, text.ptr);
- return (XawEditError);
- }
- if (num_pos) {
- for (cpos = 0; cpos < num_pos; cpos++)
- if (tmp <= pos[cpos])
- pos[cpos] += text.length;
- }
- else if (tmp <= ipos)
- ipos += text.length;
- inc -= (int)inc;
- inc += ii;
- }
- position += count;
- right += count;
- XawStackFree(buf, text.ptr);
- }
- break;
- }
- }
-
- if (!num_pos)
- ctx->text.insertPos = XawMin(ipos, ctx->text.lastPos);
-
- return (recurse ? DoFormatText(ctx, position + 1,
- ctx->text.justify != XawjustifyFull
- && (force2 || paragraph),
- ++level, save, pos, num_pos, paragraph)
- : XawEditDone);
-}
-#undef CHECK_SAVE
-
-/*ARGSUSED*/
-static void
-Indent(Widget w, XEvent *event, String *params, Cardinal *num_params)
-{
- TextWidget ctx = (TextWidget)w;
- TextSrcObject src = (TextSrcObject)ctx->text.source;
- XawTextPosition from, to, tmp, end = 0, *pos, *posbuf[32];
- char buf[32];
- XawTextBlock text;
- int i, spaces = MULT(ctx);
- char *lbuf = NULL, *rbuf;
- unsigned llen = 0, rlen, size;
- Bool undo = src->textSrc.enable_undo && src->textSrc.undo_state == False;
- Bool format = ctx->text.auto_fill
- && ctx->text.left_column < ctx->text.right_column;
-
- text.firstPos = 0;
- text.format = XawFmt8Bit;
- text.ptr = "";
-
- StartAction(ctx, event);
-
- pos = XawStackAlloc(sizeof(XawTextPosition) * src->textSrc.num_text, posbuf);
- for (i = 0; i < src->textSrc.num_text; i++)
- pos[i] = ((TextWidget)src->textSrc.text[i])->text.insertPos;
-
- if (!GetBlockBoundaries(ctx, &from, &to)) {
- EndAction(ctx);
- XawStackFree(pos, posbuf);
- return;
- }
-
- if (undo) {
- llen = to - from;
- end = ctx->text.lastPos;
- lbuf = _XawTextGetText(ctx, from, to);
- src->textSrc.undo_state = True;
- }
-
- tmp = ctx->text.lastPos;
- if (!Untabify(ctx, from, to, pos, src->textSrc.num_text, NULL)) {
- XBell(XtDisplay(ctx), 0);
- EndAction(ctx);
- XawStackFree(pos, posbuf);
- if (undo) {
- src->textSrc.undo_state = True;
- XtFree(lbuf);
- }
- return;
- }
- to += ctx->text.lastPos - tmp;
-
- tmp = from;
-
- if (spaces > 0) {
- text.ptr = XawStackAlloc(spaces, buf);
- for (i = 0; i < spaces; i++)
- text.ptr[i] = ' ';
-
- text.length = spaces;
- while (tmp < to) {
- _XawTextReplace(ctx, tmp, tmp, &text);
-
- for (i = 0; i < src->textSrc.num_text; i++)
- if (tmp < pos[i])
- pos[i] += spaces;
-
- to += spaces;
- tmp = SrcScan(ctx->text.source, tmp, XawstEOL, XawsdRight, 1, True);
- }
- XawStackFree(text.ptr, buf);
- }
- else {
- int min = 32767;
-
- text.length = 0;
- tmp = from;
-
- /* find the amount of spaces to cut */
- while (tmp < to) {
- (void)BlankLine(w, tmp, &i);
- if (i < min)
- min = i;
- tmp = SrcScan(ctx->text.source, tmp, XawstEOL, XawsdRight, 1, True);
- }
- spaces = XawMin(-spaces, min);
-
- /* cut the spaces */
- tmp = from;
- while (tmp < to) {
- _XawTextReplace(ctx, tmp, tmp + spaces, &text);
-
- for (i = 0; i < src->textSrc.num_text; i++)
- if (tmp < pos[i]) {
- if (tmp + spaces < pos[i])
- pos[i] -= spaces;
- else
- pos[i] = tmp;
- }
-
- to -= spaces;
- tmp = SrcScan(ctx->text.source, tmp, XawstEOL, XawsdRight, 1, True);
- }
- }
-
- if (!format)
- Tabify(ctx, from, to, pos, src->textSrc.num_text, NULL);
-
- if (undo) {
- rlen = llen + (ctx->text.lastPos - end);
- rbuf = _XawTextGetText(ctx, from, from + rlen);
-
- text.format = _XawTextFormat(ctx);
- size = XawTextFormat(ctx, XawFmtWide) ? sizeof(wchar_t) : sizeof(char);
- if (llen != rlen || memcmp(lbuf, rbuf, llen * size)) {
- text.ptr = lbuf;
- text.length = llen;
- _XawTextReplace(ctx, from, from + rlen, &text);
-
- src->textSrc.undo_state = False;
- text.ptr = rbuf;
- text.length = rlen;
- _XawTextReplace(ctx, from, from + llen, &text);
- }
- else
- src->textSrc.undo_state = False;
- XtFree(lbuf);
- XtFree(rbuf);
- }
-
- for (i = 0; i < src->textSrc.num_text; i++) {
- TextWidget tw = (TextWidget)src->textSrc.text[i];
-
- tw->text.insertPos = XawMin(XawMax(0, pos[i]), tw->text.lastPos);
- }
- XawStackFree(pos, posbuf);
- ctx->text.showposition = True;
-
- EndAction(ctx);
-}
-
-/*ARGSUSED*/
-static void
-ToggleOverwrite(Widget w, XEvent *event, String *params, Cardinal *num_params)
-{
- TextWidget ctx = (TextWidget)w;
-
- ctx->text.overwrite = !ctx->text.overwrite;
-
- /* call information callback */
- _XawTextSetLineAndColumnNumber(ctx, True);
-}
-#endif /* OLDXAW */
-
-/*
- * Insertion Routines
- */
-static int
-InsertNewLineAndBackupInternal(TextWidget ctx)
-{
- int count, error = XawEditDone, mult = MULT(ctx);
-#ifndef OLDXAW
- XawTextPosition position;
-#endif
- XawTextBlock text;
- char buf[32];
-
- if (mult < 0) {
- ctx->text.mult = 1;
- return (XawEditError);
- }
-
- text.format = _XawTextFormat(ctx);
- text.length = mult;
- text.firstPos = 0;
-
- if (text.format == XawFmtWide) {
- wchar_t *wptr;
-
- text.ptr = XawStackAlloc(sizeof(wchar_t) * mult, buf);
- wptr = (wchar_t *)text.ptr;
- for (count = 0; count < mult; count++)
- wptr[count] = _Xaw_atowc(XawLF);
- }
- else {
- text.ptr = XawStackAlloc(sizeof(char) * mult, buf);
- for (count = 0; count < mult; count++)
- text.ptr[count] = XawLF;
- }
-
-#ifndef OLDXAW
- position = SrcScan(ctx->text.source, ctx->text.insertPos,
- XawstEOL, XawsdLeft, 1, False);
-#endif
- if (_XawTextReplace(ctx, ctx->text.insertPos, ctx->text.insertPos, &text)) {
- XBell( XtDisplay(ctx), 50);
- error = XawEditError;
- }
- else {
- ctx->text.showposition = TRUE;
- ctx->text.insertPos += text.length;
- }
-
- XawStackFree(text.ptr, buf);
-
-#ifndef OLDXAW
- if (ctx->text.auto_fill && error == XawEditDone)
- (void)FormatText(ctx, position, ctx->text.justify != XawjustifyFull,
- NULL, 0);
-#endif
-
- return (error);
-}
-
-/*ARGSUSED*/
-static void
-InsertNewLineAndBackup(Widget w, XEvent *event, String *p, Cardinal *n)
-{
- TextWidget ctx = (TextWidget)w;
- XawTextPosition insertPos = ctx->text.insertPos;
-
- StartAction((TextWidget)w, event);
- (void)InsertNewLineAndBackupInternal(ctx);
- ctx->text.insertPos = SrcScan(ctx->text.source, insertPos, XawstEOL,
- XawsdRight, 1, False);
- EndAction((TextWidget)w);
-}
-
-static int
-LocalInsertNewLine(TextWidget ctx, XEvent *event)
-{
- int error;
-
- StartAction(ctx, event);
- error = InsertNewLineAndBackupInternal(ctx);
- ctx->text.from_left = -1;
- EndAction(ctx);
-
- return (error);
-}
-
-/*ARGSUSED*/
-static void
-InsertNewLine(Widget w, XEvent *event, String *p, Cardinal *n)
-{
- (void)LocalInsertNewLine((TextWidget)w, event);
-}
-
-/*ARGSUSED*/
-static void
-InsertNewLineAndIndent(Widget w, XEvent *event, String *p, Cardinal *n)
-{
- XawTextBlock text;
- XawTextPosition pos1;
- int length;
- TextWidget ctx = (TextWidget)w;
- String line_to_ip;
-
- StartAction(ctx, event);
- pos1 = SrcScan(ctx->text.source, ctx->text.insertPos,
- XawstEOL, XawsdLeft, 1, False);
-
- line_to_ip = _XawTextGetText(ctx, pos1, ctx->text.insertPos);
-
- text.format = _XawTextFormat(ctx);
- text.firstPos = 0;
-
- if (text.format == XawFmtWide) {
- wchar_t *ptr;
-
- text.ptr = XtMalloc((2 + wcslen((wchar_t*)line_to_ip))
- * sizeof(wchar_t));
- ptr = (wchar_t*)text.ptr;
- ptr[0] = _Xaw_atowc(XawLF);
- wcscpy((wchar_t*)++ptr, (wchar_t*)line_to_ip);
-
- length = wcslen((wchar_t*)text.ptr);
- while (length && (iswspace(*ptr) || *ptr == _Xaw_atowc(XawTAB)))
- ptr++, length--;
- *ptr = (wchar_t)0;
- text.length = wcslen((wchar_t*)text.ptr);
- }
- else {
- char *ptr;
-
- length = strlen(line_to_ip);
- text.ptr = XtMalloc((2 + length) * sizeof(char));
- ptr = text.ptr;
- ptr[0] = XawLF;
- strcpy(++ptr, line_to_ip);
-
- length++;
- while (length && (isspace(*ptr) || (*ptr == XawTAB)))
- ptr++, length--;
- *ptr = '\0';
- text.length = strlen(text.ptr);
- }
- XtFree(line_to_ip);
-
- if (_XawTextReplace(ctx,ctx->text.insertPos, ctx->text.insertPos, &text)) {
- XBell(XtDisplay(ctx), 50);
- XtFree(text.ptr);
- EndAction(ctx);
- return;
- }
-
- XtFree(text.ptr);
- ctx->text.from_left = -1;
- ctx->text.insertPos = SrcScan(ctx->text.source, ctx->text.old_insert,
- XawstPositions, XawsdRight, text.length, True);
- EndAction(ctx);
-}
-
-/*
- * Selection Routines
- */
-static void
-SelectWord(Widget w, XEvent *event, String *params, Cardinal *num_params)
-{
- TextWidget ctx = (TextWidget)w;
- XawTextPosition l, r;
-
- StartAction(ctx, event);
- l = SrcScan(ctx->text.source, ctx->text.insertPos,
- XawstWhiteSpace, XawsdLeft, 1, False);
- r = SrcScan(ctx->text.source, l, XawstWhiteSpace, XawsdRight, 1, False);
- _XawTextSetSelection(ctx, l, r, params, *num_params);
- EndAction(ctx);
-}
-
-static void
-SelectAll(Widget w, XEvent *event, String *params, Cardinal *num_params)
-{
- TextWidget ctx = (TextWidget)w;
-
- StartAction(ctx, event);
- _XawTextSetSelection(ctx,zeroPosition,ctx->text.lastPos,params,*num_params);
- EndAction(ctx);
-}
-
-static void
-ModifySelection(TextWidget ctx, XEvent *event,
- XawTextSelectionMode mode,
- XawTextSelectionAction action,
- String *params, Cardinal *num_params)
-{
-#ifndef OLDXAW
- int old_y = ctx->text.ev_y;
-#endif
-
- StartAction(ctx, event);
- NotePosition(ctx, event);
-
-#ifndef OLDXAW
- if (event->type == MotionNotify) {
- if (ctx->text.ev_y <= ctx->text.margin.top) {
- if (old_y >= ctx->text.ev_y)
- XawTextScroll(ctx, -1, 0);
- }
- else if (ctx->text.ev_y >= XtHeight(ctx) - ctx->text.margin.bottom) {
- if (old_y <= ctx->text.ev_y
- && !IsPositionVisible(ctx, ctx->text.lastPos))
- XawTextScroll(ctx, 1, 0);
- }
- }
-#endif
- ctx->text.from_left = -1;
- _XawTextAlterSelection(ctx, mode, action, params, num_params);
-
- EndAction(ctx);
-}
-
-static void
-SelectStart(Widget w, XEvent *event, String *params, Cardinal *num_params)
-{
- TextWidget ctx = (TextWidget)w;
-
-#ifndef OLDXAW
- if (!ctx->text.selection_state) {
- ctx->text.selection_state = True;
-#endif
- ModifySelection(ctx, event,
- XawsmTextSelect, XawactionStart, params, num_params);
-#ifndef OLDXAW
- }
-#endif
-}
-
-static void
-SelectAdjust(Widget w, XEvent *event, String *params, Cardinal *num_params)
-{
- TextWidget ctx = (TextWidget)w;
-
-#ifndef OLDXAW
- if (ctx->text.selection_state)
-#endif
- ModifySelection(ctx, event,
- XawsmTextSelect, XawactionAdjust, params, num_params);
-}
-
-static void
-SelectEnd(Widget w, XEvent *event, String *params, Cardinal *num_params)
-{
- TextWidget ctx = (TextWidget)w;
-
-#ifndef OLDXAW
- if (ctx->text.selection_state) {
- ctx->text.selection_state = False;
-#endif
- ModifySelection(ctx, event,
- XawsmTextSelect, XawactionEnd, params, num_params);
-#ifndef OLDXAW
- }
-#endif
-}
-
-static void
-ExtendStart(Widget w, XEvent *event, String *params, Cardinal *num_params)
-{
- TextWidget ctx = (TextWidget)w;
-
-#ifndef OLDXAW
- if (!ctx->text.selection_state) {
- ctx->text.selection_state = True;
-#endif
- ModifySelection(ctx, event,
- XawsmTextExtend, XawactionStart, params, num_params);
-#ifndef OLDXAW
- }
-#endif
-}
-
-static void
-ExtendAdjust(Widget w, XEvent *event, String *params, Cardinal *num_params)
-{
- TextWidget ctx = (TextWidget)w;
-
-#ifndef OLDXAW
- if (ctx->text.selection_state)
-#endif
- ModifySelection(ctx, event,
- XawsmTextExtend, XawactionAdjust, params, num_params);
-}
-
-static void
-ExtendEnd(Widget w, XEvent *event, String *params, Cardinal *num_params)
-{
- TextWidget ctx = (TextWidget)w;
-
-#ifndef OLDXAW
- if (ctx->text.selection_state) {
- ctx->text.selection_state = False;
-#endif
- ModifySelection(ctx, event,
- XawsmTextExtend, XawactionEnd, params, num_params);
-#ifndef OLDXAW
- }
-#endif
-}
-
-static void
-SelectSave(Widget w, XEvent *event, String *params, Cardinal *num_params)
-{
- int num_atoms;
- Atom *sel;
- Display *dpy = XtDisplay(w);
- Atom selections[256];
-
- StartAction((TextWidget)w, event);
- num_atoms = *num_params;
- if (num_atoms > 256)
- num_atoms = 256;
- for (sel=selections; --num_atoms >= 0; sel++, params++)
- *sel = XInternAtom(dpy, *params, False);
- num_atoms = *num_params;
- _XawTextSaltAwaySelection((TextWidget)w, selections, num_atoms);
- EndAction((TextWidget)w);
-}
-
-/*
- * Misc. Routines
- */
-/*ARGSUSED*/
-static void
-SetKeyboardFocus(Widget w, XEvent *event, String *params, Cardinal *num_params)
-{
- Widget shell, parent;
-
- shell = parent = w;
- while (parent) {
- if (XtIsShell(shell = parent))
- break;
- parent = XtParent(parent);
- }
- XtSetKeyboardFocus(shell, w);
-}
-
-/*ARGSUSED*/
-static void
-RedrawDisplay(Widget w, XEvent *event, String *p, Cardinal *n)
-{
- StartAction((TextWidget)w, event);
- _XawTextClearAndCenterDisplay((TextWidget)w);
- EndAction((TextWidget)w);
-}
-
-/* This is kind of a hack, but, only one text widget can have focus at
- * a time on one display. There is a problem in the implementation of the
- * text widget, the scrollbars can not be adressed via editres, since they
- * are not children of a subclass of composite.
- * The focus variable is required to make sure only one text window will
- * show a block cursor at one time.
- */
-struct _focus { Display *display; Widget widget; };
-static struct _focus *focus;
-static Cardinal num_focus;
-
-/*ARGSUSED*/
-static void
-DestroyFocusCallback(Widget w, XtPointer user_data, XtPointer call_data)
-{
- struct _focus *f = (struct _focus*)(user_data);
-
- if (f->widget == w)
- f->widget = NULL;
-}
-
-/*ARGSUSED*/
-static void
-TextFocusIn(Widget w, XEvent *event, String *p, Cardinal *n)
-{
- TextWidget ctx = (TextWidget)w;
- Bool display_caret = ctx->text.display_caret;
- int i;
-
- if (event->xfocus.detail == NotifyPointer)
- return;
-
- if (event->xfocus.send_event) {
- Window root, child;
- int rootx, rooty, x, y;
- unsigned int mask;
-
- if (ctx->text.hasfocus)
- return;
-
- if (XQueryPointer(XtDisplay(w), XtWindow(w), &root, &child,
- &rootx, &rooty, &x, &y, &mask)) {
- if (child)
- return;
- }
- }
-
- /* Let the input method know focus has arrived. */
- _XawImSetFocusValues(w, NULL, 0);
-
- if (display_caret)
- StartAction(ctx, event);
- ctx->text.hasfocus = TRUE;
- if (display_caret)
- EndAction(ctx);
-
- for (i = 0; i < num_focus; i++)
- if (focus[i].display == XtDisplay(w))
- break;
- if (i >= num_focus) {
- focus = (struct _focus*)
- XtRealloc((XtPointer)focus, sizeof(struct _focus) * (num_focus + 1));
- i = num_focus;
- focus[i].widget = NULL;
- focus[i].display = XtDisplay(w);
- num_focus++;
- }
- if (focus[i].widget != w) {
- Widget old = focus[i].widget;
-
- focus[i].widget = w;
- if (old != NULL) {
- TextFocusOut(old, event, p, n);
- /* TextFocusOut may set it to NULL */
- focus[i].widget = w;
- }
- XtAddCallback(w, XtNdestroyCallback,
- DestroyFocusCallback, (XtPointer)&focus[i]);
- }
-}
-
-/*ARGSUSED*/
-static void
-TextFocusOut(Widget w, XEvent *event, String *p, Cardinal *n)
-{
- TextWidget ctx = (TextWidget)w;
- Bool display_caret = ctx->text.display_caret;
- Widget shell;
- Window window;
- int i, revert;
-
- shell = w;
- while (shell) {
- if (XtIsShell(shell))
- break;
- shell = XtParent(shell);
- }
-
- for (i = 0; i < num_focus; i++)
- if (focus[i].display == XtDisplay(w))
- break;
- XGetInputFocus(XtDisplay(w), &window, &revert);
- if ((XtWindow(shell) == window &&
- (i < num_focus && focus[i].widget == w))
- || event->xfocus.detail == NotifyPointer)
- return;
-
- if (i < num_focus && focus[i].widget) {
- XtRemoveCallback(focus[i].widget, XtNdestroyCallback,
- DestroyFocusCallback, (XtPointer)&focus[i]);
- focus[i].widget = NULL;
- }
-
- /* Let the input method know focus has left.*/
- _XawImUnsetFocus(w);
-
- if (display_caret)
- StartAction(ctx, event);
- ctx->text.hasfocus = FALSE;
- if (display_caret)
- EndAction(ctx);
-}
-
-/*ARGSUSED*/
-static void
-TextEnterWindow(Widget w, XEvent *event, String *params, Cardinal *num_params)
-{
- TextWidget ctx = (TextWidget)w;
-
- if ((event->xcrossing.detail != NotifyInferior) && event->xcrossing.focus
- && !ctx->text.hasfocus)
- _XawImSetFocusValues(w, NULL, 0);
-}
-
-/*ARGSUSED*/
-static void
-TextLeaveWindow(Widget w, XEvent *event, String *params, Cardinal *num_params)
-{
- TextWidget ctx = (TextWidget)w;
-
- if ((event->xcrossing.detail != NotifyInferior) && event->xcrossing.focus
- && !ctx->text.hasfocus)
- _XawImUnsetFocus(w);
-}
-
-/*
- * Function:
- * AutoFill
- * Arguments: ctx - The text widget.
- *
- * Description:
- * Breaks the line at the previous word boundry when
- * called inside InsertChar.
- */
-static void
-AutoFill(TextWidget ctx)
-{
- int width, height, x, line_num, max_width;
- XawTextPosition ret_pos;
- XawTextBlock text;
- XRectangle cursor;
- wchar_t wc_buf[2];
-
- for (line_num = 0; line_num < ctx->text.lt.lines ; line_num++)
- if (ctx->text.lt.info[line_num].position >= ctx->text.insertPos)
- break;
- if (line_num)
- line_num--; /* backup a line. */
-
- XawTextSinkGetCursorBounds(ctx->text.sink, &cursor);
- max_width = Max(0, (int)XtWidth(ctx) - RHMargins(ctx) - cursor.width);
-
- x = ctx->text.r_margin.left;
- XawTextSinkFindPosition(ctx->text.sink, ctx->text.lt.info[line_num].position,
- x, max_width, True, &ret_pos,
- &width, &height);
-
- if (ret_pos <= ctx->text.lt.info[line_num].position
- || ret_pos >= ctx->text.insertPos || ret_pos < 1)
- return;
-
- XawTextSourceRead(ctx->text.source, ret_pos - 1, &text, 1);
-
- if (XawTextFormat(ctx, XawFmtWide)) {
- wc_buf[0] = *(wchar_t *)text.ptr;
- if (wc_buf[0] != _Xaw_atowc(XawSP) && wc_buf[0] != _Xaw_atowc(XawTAB))
- /* Only eats white spaces */
- return;
-
- text.format = XawFmtWide;
- text.ptr = (char *)wc_buf;
- wc_buf[0] = _Xaw_atowc(XawLF);
- wc_buf[1] = 0;
- }
- else {
- if (text.ptr[0] != XawSP && text.ptr[0] != XawTAB)
- /* Only eats white spaces */
- return;
-
- text.format = XawFmt8Bit;
- text.ptr = "\n";
- }
- text.length = 1;
- text.firstPos = 0;
-
- if (_XawTextReplace(ctx, ret_pos - 1, ret_pos, &text))
- XBell(XtDisplay((Widget)ctx), 0);
-
- if (++ctx->text.insertPos > ctx->text.lastPos)
- ctx->text.insertPos = ctx->text.lastPos;
-}
-
-/*ARGSUSED*/
-static void
-InsertChar(Widget w, XEvent *event, String *p, Cardinal *n)
-{
- TextWidget ctx = (TextWidget)w;
- char *ptr, strbuf[128], ptrbuf[512];
- int count, error, mult = MULT(ctx);
- KeySym keysym;
- XawTextBlock text;
-#ifndef OLDXAW
- Bool format = False;
-#endif
- XawTextPosition from, to;
-
- if (XtIsSubclass (ctx->text.source, (WidgetClass) multiSrcObjectClass))
- text.length = _XawImWcLookupString(w, &event->xkey, (wchar_t*)strbuf,
- sizeof(strbuf), &keysym);
- else
- text.length = _XawLookupString(w, (XKeyEvent*)event, strbuf,
- sizeof(strbuf), &keysym);
-
- if (text.length == 0)
- return;
-
- if (mult < 0) {
- ctx->text.mult = 1;
- return;
- }
-
- text.format = _XawTextFormat(ctx);
- if (text.format == XawFmtWide) {
- text.ptr = ptr = XawStackAlloc(sizeof(wchar_t) * text.length
- * mult, ptrbuf);
- for (count = 0; count < mult; count++) {
- memcpy((char*)ptr, (char *)strbuf, sizeof(wchar_t) * text.length);
- ptr += sizeof(wchar_t) * text.length;
- }
-#ifndef OLDXAW
- if (mult == 1)
- format = ctx->text.left_column < ctx->text.right_column;
-#endif
- }
- else { /* == XawFmt8Bit */
- text.ptr = ptr = XawStackAlloc(text.length * mult, ptrbuf);
- for (count = 0; count < mult; count++) {
- strncpy(ptr, strbuf, text.length);
- ptr += text.length;
- }
-#ifndef OLDXAW
- if (mult == 1)
- format = ctx->text.left_column < ctx->text.right_column;
-#endif
- }
-
- text.length = text.length * mult;
- text.firstPos = 0;
-
- StartAction(ctx, event);
-#ifndef OLDXAW
- if (mult == 1)
- _XawSourceSetUndoMerge((TextSrcObject)ctx->text.source, True);
-#endif
-
- from = ctx->text.insertPos;
-#ifndef OLDXAW
- if (ctx->text.overwrite) {
- XawTextPosition tmp;
-
- to = from + mult;
- tmp = SrcScan(ctx->text.source, from, XawstEOL, XawsdRight, 1, False);
- if (to > tmp)
- to = tmp;
- }
- else
-#endif
- to = from;
-
- error = _XawTextReplace(ctx, from , to, &text);
-
- if (error == XawEditDone) {
- ctx->text.from_left = -1;
- ctx->text.insertPos = SrcScan(ctx->text.source, ctx->text.old_insert,
- XawstPositions, XawsdRight,
- text.length, True);
- if (ctx->text.auto_fill) {
-#ifndef OLDXAW
- if (format)
- (void)FormatText(ctx, SrcScan(ctx->text.source,
- ctx->text.insertPos, XawstEOL,
- XawsdLeft, 1, False), False,
- NULL, 0);
- else
-#endif
- AutoFill(ctx);
- }
- }
- else
- XBell(XtDisplay(ctx), 50);
-
- XawStackFree(text.ptr, ptrbuf);
- EndAction(ctx);
-
- if (error == XawEditDone && text.format == XawFmt8Bit && text.length == 1
- && (text.ptr[0] == ')' || text.ptr[0] == ']' || text.ptr[0] == '}')
- && ctx->text.display_caret) {
- static struct timeval tmval = {0, 500000};
- fd_set fds;
- Widget source = ctx->text.source;
- XawTextPosition insertPos = ctx->text.insertPos, pos, tmp, last;
- char left, right = text.ptr[0];
- int level = 0;
- XtAppContext app_context = XtWidgetToApplicationContext(w);
-
- left = right == ')' ? '(' : right == ']' ? '[' : '{';
-
- last = insertPos - 1;
- do {
- text.ptr[0] = left;
- pos = XawTextSourceSearch(source, last, XawsdLeft, &text);
- if (pos == XawTextSearchError || !IsPositionVisible(ctx, pos))
- return;
- text.ptr[0] = right;
- tmp = pos;
- do {
- tmp = XawTextSourceSearch(source, tmp, XawsdRight, &text);
- if (tmp == XawTextSearchError)
- return;
- if (tmp <= last)
- ++level;
- } while (++tmp <= last);
- --level;
- last = pos;
- } while (level);
-
- StartAction(ctx, NULL);
-#ifndef OLDXAW
- _XawSourceSetUndoMerge((TextSrcObject)ctx->text.source, True);
-#endif
- ctx->text.insertPos = pos;
- EndAction(ctx);
-
- XSync(XtDisplay(w), False);
- while (XtAppPending(app_context) & XtIMXEvent) {
- XEvent ev;
- if (! XtAppPeekEvent(app_context, &ev))
- break;
- if (ev.type == KeyPress || ev.type == ButtonPress)
- break;
- XtAppProcessEvent(app_context, XtIMXEvent);
- }
- FD_ZERO(&fds);
- FD_SET(ConnectionNumber(XtDisplay(w)), &fds);
- (void)select(FD_SETSIZE, &fds, NULL, NULL, &tmval);
- if (tmval.tv_usec != 500000)
- usleep(40000);
-
- StartAction(ctx, NULL);
-#ifndef OLDXAW
- _XawSourceSetUndoMerge((TextSrcObject)ctx->text.source, True);
-#endif
- ctx->text.insertPos = insertPos;
- EndAction(ctx);
- }
-}
-
-/* IfHexConvertHexElseReturnParam() - called by InsertString
- *
- * i18n requires the ability to specify multiple characters in a hexa-
- * decimal string at once. Since Insert was already too long, I made
- * this a seperate routine.
- *
- * A legal hex string in MBNF: '0' 'x' ( HEX-DIGIT HEX-DIGIT )+ '\0'
- *
- * WHEN: the passed param is a legal hex string
- * RETURNS: a pointer to that converted, null terminated hex string;
- * len_return holds the character count of conversion result
- *
- * WHEN: the passed param is not a legal hex string:
- * RETURNS: the parameter passed;
- * len_return holds the char count of param.
- *
- * NOTE: In neither case will there be strings to free. */
-static char *
-IfHexConvertHexElseReturnParam(char *param, int *len_return)
-{
- char *p; /* steps through param char by char */
- char c; /* holds the character pointed to by p */
- int ind; /* steps through hexval buffer char by char */
- static char hexval[XawTextActionMaxHexChars];
- Boolean first_digit;
-
- /* reject if it doesn't begin with 0x and at least one more character. */
- if ((param[0] != '0') || (param[1] != 'x') || (param[2] == '\0')) {
- *len_return = strlen(param);
- return(param);
- }
-
- /* Skip the 0x; go character by character shifting and adding. */
- first_digit = True;
- ind = 0;
- hexval[ind] = '\0';
-
- for (p = param+2; (c = *p) != '\0'; p++) {
- hexval[ind] *= 16;
- if (c >= '0' && c <= '9')
- hexval[ind] += c - '0';
- else if (c >= 'a' && c <= 'f')
- hexval[ind] += c - 'a' + 10;
- else if (c >= 'A' && c <= 'F')
- hexval[ind] += c - 'A' + 10;
- else
- break;
-
- /* If we didn't break in preceding line, it was a good hex char. */
- if (first_digit)
- first_digit = False;
- else {
- first_digit = True;
- if (++ind < XawTextActionMaxHexChars)
- hexval[ind] = '\0';
- else {
- *len_return = strlen(param);
- return(param);
- }
- }
- }
-
- /* We quit the above loop becasue we hit a non hex. If that char is \0... */
- if ((c == '\0') && first_digit) {
- *len_return = strlen(hexval);
- return (hexval); /* ...it was a legal hex string, so return it */
- }
-
- /* Else, there were non-hex chars or odd digit count, so... */
-
- *len_return = strlen(param);
- return (param); /* ...return the verbatim string. */
-}
-
-/* InsertString() - action
- *
- * Mostly rewritten for R6 i18n.
- *
- * Each parameter, in turn, will be insert at the inputPos
- * and the inputPos advances to the insertion's end.
- *
- * The exception is that parameters composed of the two
- * characters 0x, followed only by an even number of
- * hexadecimal digits will be converted to characters */
-/*ARGSUSED*/
-static void
-InsertString(Widget w, XEvent *event, String *params, Cardinal *num_params)
-{
- TextWidget ctx = (TextWidget)w;
- XtAppContext app_con = XtWidgetToApplicationContext(w);
- XawTextBlock text;
- int i;
-
- text.firstPos = 0;
- text.format = _XawTextFormat(ctx);
-
- StartAction(ctx, event);
- for (i = *num_params; i; i--, params++) { /* DO FOR EACH PARAMETER */
- text.ptr = IfHexConvertHexElseReturnParam(*params, &text.length);
-
- if (text.length == 0)
- continue;
-
- if (XawTextFormat(ctx, XawFmtWide)) { /* convert to WC */
- int temp_len;
-
- text.ptr = (char*)_XawTextMBToWC(XtDisplay(w), text.ptr,
- &text.length);
-
- if (text.ptr == NULL) { /* conversion error */
- XtAppWarningMsg(app_con,
- "insertString", "textAction", "XawError",
- "insert-string()'s parameter contents "
- "not legal in this locale.",
- NULL, NULL);
- ParameterError(w, *params);
- continue;
- }
-
- /* Double check that the new input is legal: try to convert to MB. */
-
- temp_len = text.length; /* _XawTextWCToMB's 3rd arg is in_out */
- if (_XawTextWCToMB(XtDisplay(w), (wchar_t*)text.ptr, &temp_len)
- == NULL) {
- XtAppWarningMsg( app_con,
- "insertString", "textAction", "XawError",
- "insert-string()'s parameter contents "
- "not legal in this locale.",
- NULL, NULL);
- ParameterError(w, *params);
- continue;
- }
- } /* convert to WC */
-
- if (_XawTextReplace(ctx, ctx->text.insertPos,
- ctx->text.insertPos, &text)) {
- XBell(XtDisplay(ctx), 50);
- EndAction(ctx);
- return;
- }
-
- ctx->text.from_left = -1;
- /* Advance insertPos to the end of the string we just inserted. */
- ctx->text.insertPos = SrcScan(ctx->text.source, ctx->text.old_insert,
- XawstPositions, XawsdRight, text.length,
- True);
-
- } /* DO FOR EACH PARAMETER */
-
- EndAction(ctx);
-}
-
-/* DisplayCaret() - action
- *
- * The parameter list should contain one boolean value. If the
- * argument is true, the cursor will be displayed. If false, not.
- *
- * The exception is that EnterNotify and LeaveNotify events may
- * have a second argument, "always". If they do not, the cursor
- * is only affected if the focus member of the event is true. */
-static void
-DisplayCaret(Widget w, XEvent *event, String *params, Cardinal *num_params)
-{
- TextWidget ctx = (TextWidget)w;
- Bool display_caret = True;
-
- if ((event->type == EnterNotify || event->type == LeaveNotify)
- && ((*num_params >= 2) && (strcmp(params[1], "always") == 0))
- && (!event->xcrossing.focus))
- return;
-
- if (*num_params > 0) { /* default arg is "True" */
- XrmValue from, to;
- from.size = strlen(from.addr = params[0]);
- XtConvert(w, XtRString, &from, XtRBoolean, &to);
-
- if (to.addr != NULL)
- display_caret = *(Boolean*)to.addr;
- if (ctx->text.display_caret == display_caret)
- return;
- }
- StartAction(ctx, event);
- ctx->text.display_caret = display_caret;
- EndAction(ctx);
-}
-
-#ifndef OLDXAW
-static void
-Numeric(Widget w, XEvent *event, String *params, Cardinal *num_params)
-{
- TextWidget ctx = (TextWidget)w;
-
- if (ctx->text.numeric) {
- long mult = ctx->text.mult;
-
- if (*num_params != 1 || strlen(params[0]) != 1
- || (!isdigit(params[0][0])
- && (params[0][0] != '-' || mult != 0))) {
- char err_buf[256];
-
- if (event && (event->type == KeyPress || event->type == KeyRelease)
- && params[0][0] == '-') {
- InsertChar(w, event, params, num_params);
- return;
- }
- XmuSnprintf(err_buf, sizeof(err_buf),
- "numeric: Invalid argument%s'%s'",
- *num_params ? ", " : "", *num_params ? params[0] : "");
- XtAppWarning(XtWidgetToApplicationContext(w), err_buf);
- ctx->text.numeric = False;
- ctx->text.mult = 1;
- return;
- }
- if (params[0][0] == '-') {
- ctx->text.mult = 32767;
- return;
- }
- else if (mult == 32767) {
- mult = ctx->text.mult = - (params[0][0] - '0');
- return;
- }
- else {
- mult = mult * 10 + (params[0][0] - '0') * (mult < 0 ? -1 : 1);
- ctx->text.mult = ctx->text.mult * 10 + (params[0][0] - '0') *
- (mult < 0 ? -1 : 1);
- }
- if (mult != ctx->text.mult || mult >= 32767) { /* checks for overflow */
- XBell(XtDisplay(w), 0);
- ctx->text.mult = 1;
- ctx->text.numeric = False;
- return;
- }
- }
- else
- InsertChar(w, event, params, num_params);
-}
-
-/*ARGSUSED*/
-static void
-KeyboardReset(Widget w, XEvent *event, String *params, Cardinal *num_params)
-{
- TextWidget ctx = (TextWidget)w;
-
- ctx->text.numeric = False;
- ctx->text.mult = 1;
-
- (void)_XawTextSrcToggleUndo((TextSrcObject)ctx->text.source);
-
- if (ctx->text.kill_ring_ptr) {
- --ctx->text.kill_ring_ptr->refcount;
- ctx->text.kill_ring_ptr = NULL;
- }
- ctx->text.kill_ring = 0;
-
- XBell(XtDisplay(w), 0);
-}
-#endif /* OLDXAW */
-
-/* Multiply() - action
- *
- * The parameter list may contain either a number or the string 'Reset'.
- *
- * A number will multiply the current multiplication factor by that number.
- * Many of the text widget actions will will perform n actions, where n is
- * the multiplication factor.
- *
- * The string reset will reset the mutiplication factor to 1. */
-/*ARGSUSED*/
-static void
-Multiply(Widget w, XEvent *event, String *params, Cardinal *num_params)
-{
- TextWidget ctx = (TextWidget)w;
- int mult;
-
- if (*num_params != 1) {
- XtAppError(XtWidgetToApplicationContext(w),
- "Xaw Text Widget: multiply() takes exactly one argument.");
- XBell(XtDisplay(w), 0);
- return;
- }
-
- if ((params[0][0] == 'r') || (params[0][0] == 'R')) {
- XBell(XtDisplay(w), 0);
-#ifndef OLDXAW
- ctx->text.numeric = False;
-#endif
- ctx->text.mult = 1;
- return;
- }
-
-#ifndef OLDXAW
- if (params[0][0] == 's' || params[0][0] == 'S') {
- ctx->text.numeric = True;
- ctx->text.mult = 0;
- return;
- }
- else
-#endif
- if ((mult = atoi(params[0])) == 0) {
- char buf[BUFSIZ];
-
- XmuSnprintf(buf, sizeof(buf),
- "%s %s", "Xaw Text Widget: multiply() argument",
- "must be a number greater than zero, or 'Reset'.");
- XtAppError(XtWidgetToApplicationContext(w), buf);
- XBell(XtDisplay(w), 50);
- return;
- }
-
- ctx->text.mult *= mult;
-}
-
-/* StripOutOldCRs() - called from FormRegion
- *
- * removes CRs in widget ctx, from from to to.
- *
- * RETURNS: the new ending location (we may add some characters),
- * or XawReplaceError if the widget can't be written to. */
-static XawTextPosition
-StripOutOldCRs(TextWidget ctx, XawTextPosition from, XawTextPosition to,
- XawTextPosition *pos, int num_pos)
-{
- XawTextPosition startPos, endPos, eop_begin, eop_end, temp;
- Widget src = ctx->text.source;
- XawTextBlock text;
- char *buf;
- static wchar_t wc_two_spaces[3];
- int idx;
-
- /* Initialize our TextBlock with two spaces. */
- text.firstPos = 0;
- text.format = _XawTextFormat(ctx);
- if (text.format == XawFmt8Bit)
- text.ptr= " ";
- else {
- wc_two_spaces[0] = _Xaw_atowc(XawSP);
- wc_two_spaces[1] = _Xaw_atowc(XawSP);
- wc_two_spaces[2] = 0;
- text.ptr = (char*)wc_two_spaces;
- }
-
- /* Strip out CR's. */
- eop_begin = eop_end = startPos = endPos = from;
-
- /* CONSTCOND */
- while (TRUE) {
- endPos=SrcScan(src, startPos, XawstEOL, XawsdRight, 1, False);
-
- temp = SrcScan(src, endPos, XawstWhiteSpace, XawsdLeft, 1, False);
- temp = SrcScan(src, temp, XawstWhiteSpace, XawsdRight,1, False);
-
- if (temp > startPos)
- endPos = temp;
-
- if (endPos >= to)
- break;
-
- if (endPos >= eop_begin) {
- startPos = eop_end;
- eop_begin=SrcScan(src, startPos, XawstParagraph,
- XawsdRight, 1,False);
- eop_end = SrcScan(src, startPos, XawstParagraph,
- XawsdRight, 1, True);
- }
- else {
- XawTextPosition periodPos, next_word;
- int i, len;
-
- periodPos = SrcScan(src, endPos, XawstPositions,
- XawsdLeft, 1, True);
- next_word = SrcScan(src, endPos, XawstWhiteSpace,
- XawsdRight, 1, False);
-
- len = next_word - periodPos;
-
- text.length = 1;
- buf = _XawTextGetText(ctx, periodPos, next_word);
- if (text.format == XawFmtWide) {
- if (periodPos < endPos && ((wchar_t*)buf)[0] == _Xaw_atowc('.'))
- text.length++;
- }
- else
- if (periodPos < endPos && buf[0] == '.')
- text.length++; /* Put in two spaces. */
-
- /*
- * Remove all extra spaces.
- */
- for (i = 1 ; i < len; i++)
- if (text.format == XawFmtWide) {
- if (!iswspace(((wchar_t*)buf)[i]) || ((periodPos + i) >= to))
- break;
- }
- else if (!isspace(buf[i]) || (periodPos + i) >= to)
- break;
-
- XtFree(buf);
-
- to -= (i - text.length - 1);
- startPos = SrcScan(src, periodPos, XawstPositions,
- XawsdRight, i, True);
- if (_XawTextReplace(ctx, endPos, startPos, &text) != XawEditDone)
- return (XawReplaceError);
-
- for (idx = 0; idx < num_pos; idx++) {
- if (endPos < pos[idx]) {
- if (startPos < pos[idx])
- pos[idx] -= startPos - endPos;
- else
- pos[idx] = endPos;
- pos[idx] += text.length;
- }
- }
-
- startPos -= i - text.length;
- }
- }
-
- return (to);
-}
-
-/* InsertNewCRs() - called from FormRegion
- *
- * inserts new CRs for FormRegion, thus for FormParagraph action */
-static void
-InsertNewCRs(TextWidget ctx, XawTextPosition from, XawTextPosition to,
- XawTextPosition *pos, int num_pos)
-{
- XawTextPosition startPos, endPos, space, eol;
- XawTextBlock text;
- int i, width, height, len, wwidth, idx;
- char *buf;
- static wchar_t wide_CR[2];
-
- text.firstPos = 0;
- text.length = 1;
- text.format = _XawTextFormat(ctx);
-
- if (text.format == XawFmt8Bit)
- text.ptr = "\n";
- else {
- wide_CR[0] = _Xaw_atowc(XawLF);
- wide_CR[1] = 0;
- text.ptr = (char*)wide_CR;
- }
-
- startPos = from;
-
- wwidth = (int)XtWidth(ctx) - (int)HMargins(ctx);
- if (ctx->text.wrap != XawtextWrapNever) {
- XRectangle cursor;
-
- XawTextSinkGetCursorBounds(ctx->text.sink, &cursor);
- wwidth -= (int)cursor.width;
- }
- wwidth = XawMax(0, wwidth);
-
- /* CONSTCOND */
- while (TRUE) {
- XawTextSinkFindPosition(ctx->text.sink, startPos,
- (int)ctx->text.r_margin.left, wwidth,
- True, &eol, &width, &height);
- if (eol == startPos)
- ++eol;
- if (eol >= to)
- break;
-
- eol = SrcScan(ctx->text.source, eol, XawstPositions,
- XawsdLeft, 1, True);
- space = SrcScan(ctx->text.source, eol, XawstWhiteSpace,
- XawsdRight,1, True);
-
- startPos = endPos = eol;
- if (eol == space)
- return;
-
- len = (int)(space - eol);
- buf = _XawTextGetText(ctx, eol, space);
- for (i = 0 ; i < len ; i++)
- if (text.format == XawFmtWide) {
- if (!iswspace(((wchar_t*)buf)[i]))
- break;
- }
- else if (!isspace(buf[i]))
- break;
-
- to -= (i - 1);
- endPos = SrcScan(ctx->text.source, endPos,
- XawstPositions, XawsdRight, i, True);
- XtFree(buf);
-
- if (_XawTextReplace(ctx, startPos, endPos, &text))
- return;
-
- for (idx = 0; idx < num_pos; idx++) {
- if (startPos < pos[idx]) {
- if (endPos < pos[idx])
- pos[idx] -= endPos - startPos;
- else
- pos[idx] = startPos;
- pos[idx] += text.length;
- }
- }
-
- startPos = SrcScan(ctx->text.source, startPos,
- XawstPositions, XawsdRight, 1, True);
- }
-}
-
-/* FormRegion() - called by FormParagraph
- *
- * oversees the work of paragraph-forming a region
- *
- * Return:
- * XawEditDone if successful, or XawReplaceError
- */
-static int
-FormRegion(TextWidget ctx, XawTextPosition from, XawTextPosition to,
- XawTextPosition *pos, int num_pos)
-{
-#ifndef OLDXAW
- Bool format = ctx->text.auto_fill
- && ctx->text.left_column < ctx->text.right_column;
-#endif
-
- if (from >= to)
- return (XawEditDone);
-
-#ifndef OLDXAW
- if (format) {
- XawTextPosition len = ctx->text.lastPos;
- int inc = 0;
-
- if (ctx->text.justify == XawjustifyLeft ||
- ctx->text.justify == XawjustifyFull) {
- Untabify(ctx, from, to, pos, num_pos, NULL);
- to += ctx->text.lastPos - len;
- len = ctx->text.insertPos;
- (void)BlankLine((Widget)ctx, from, &inc);
- if (from + inc >= to)
- return (XawEditDone);
- }
- if (!StripSpaces(ctx, from + inc, to, pos, num_pos, NULL))
- return (XawReplaceError);
- to += ctx->text.lastPos - len;
-
- FormatText(ctx, from, ctx->text.justify != XawjustifyFull, pos, num_pos);
- }
- else {
-#endif
- if ((to = StripOutOldCRs(ctx, from, to, pos, num_pos)) == XawReplaceError)
- return (XawReplaceError);
- InsertNewCRs(ctx, from, to, pos, num_pos);
-#ifndef OLDXAW
- }
-#endif
- ctx->text.from_left = -1;
-
- return (XawEditDone);
-}
-
-#ifndef OLDXAW
-static Bool
-BlankLine(Widget w, XawTextPosition pos, int *blanks_return)
-{
- int i, blanks = 0;
- XawTextBlock block;
- Widget src = XawTextGetSource(w);
- XawTextPosition l = SrcScan(src, pos, XawstEOL, XawsdLeft, 1, False);
- XawTextPosition r = SrcScan(src, pos, XawstEOL, XawsdRight, 1, False);
-
- while (l < r) {
- l = XawTextSourceRead(src, l, &block, r - l);
- if (block.length == 0) {
- if (blanks_return)
- *blanks_return = blanks;
- return (True);
- }
- if (XawTextFormat((TextWidget)w, XawFmt8Bit)) {
- for (i = 0; i < block.length; i++, blanks++)
- if (block.ptr[i] != ' ' &&
- block.ptr[i] != '\t') {
- if (blanks_return)
- *blanks_return = blanks;
- return (block.ptr[i] == '\n');
- }
- }
- else if (XawTextFormat((TextWidget)w, XawFmtWide)) {
- for (i = 0; i < block.length; i++, blanks++)
- if (_Xaw_atowc(XawSP) != ((wchar_t*)block.ptr)[i] &&
- _Xaw_atowc(XawTAB) != ((wchar_t*)block.ptr)[i]) {
- if (blanks_return)
- *blanks_return = blanks;
- return (_Xaw_atowc(XawLF) == ((wchar_t*)block.ptr)[i]);
- }
- }
- }
-
- return (True);
-}
-
-static Bool
-GetBlockBoundaries(TextWidget ctx,
- XawTextPosition *from_return, XawTextPosition *to_return)
-{
- XawTextPosition from, to;
-
- if (ctx->text.auto_fill && ctx->text.left_column < ctx->text.right_column) {
- if (ctx->text.s.left != ctx->text.s.right) {
- from = SrcScan(ctx->text.source,
- XawMin(ctx->text.s.left, ctx->text.s.right),
- XawstEOL, XawsdLeft, 1, False);
- to = SrcScan(ctx->text.source,
- XawMax(ctx->text.s.right, ctx->text.s.right),
- XawstEOL, XawsdRight, 1, False);
- }
- else {
- XawTextBlock block;
- XawTextPosition tmp;
- Bool first;
-
- from = to = ctx->text.insertPos;
-
- /* find from position */
- first = True;
- while (1) {
- tmp = from;
- from = SrcScan(ctx->text.source, from, XawstEOL, XawsdLeft,
- 1 + !first, False);
- XawTextSourceRead(ctx->text.source, from, &block, 1);
- if (block.length == 0 ||
- (XawTextFormat(ctx, XawFmt8Bit) &&
- block.ptr[0] != ' ' &&
- block.ptr[0] != '\t' &&
- !isalnum(*(unsigned char*)block.ptr)) ||
- (XawTextFormat(ctx, XawFmtWide) &&
- _Xaw_atowc(XawSP) != *(wchar_t*)block.ptr &&
- _Xaw_atowc(XawTAB) != *(wchar_t*)block.ptr &&
- !iswalnum(*(wchar_t*)block.ptr)) ||
- BlankLine((Widget)ctx, from, NULL)) {
- from = tmp;
- break;
- }
- if (from == tmp && !first)
- break;
- first = False;
- }
- if (first)
- return (False);
-
- /* find to position */
- first = True;
- while (1) {
- tmp = to;
- to = SrcScan(ctx->text.source, to, XawstEOL, XawsdRight,
- 1 + !first, False);
- XawTextSourceRead(ctx->text.source, to + (to < ctx->text.lastPos),
- &block, 1);
- if (block.length == 0 ||
- (XawTextFormat(ctx, XawFmt8Bit) &&
- block.ptr[0] != ' ' &&
- block.ptr[0] != '\t' &&
- !isalnum(*(unsigned char*)block.ptr)) ||
- (XawTextFormat(ctx, XawFmtWide) &&
- _Xaw_atowc(XawSP) != *(wchar_t*)block.ptr &&
- _Xaw_atowc(XawTAB) != *(wchar_t*)block.ptr &&
- !iswalnum(*(wchar_t*)block.ptr)) ||
- BlankLine((Widget)ctx, to, NULL))
- break;
- if (to == tmp && !first)
- break;
- first = False;
- }
- }
- }
- else {
- from = SrcScan(ctx->text.source, ctx->text.insertPos, XawstEOL,
- XawsdLeft, 1, False);
- if (BlankLine((Widget)ctx, from, NULL))
- return (False);
- from = SrcScan(ctx->text.source, from, XawstParagraph,
- XawsdLeft, 1, False);
- if (BlankLine((Widget)ctx, from, NULL))
- from = SrcScan(ctx->text.source, from, XawstEOL,
- XawsdRight, 1, True);
- to = SrcScan(ctx->text.source, from, XawstParagraph,
- XawsdRight, 1, False);
- }
-
- if (from < to) {
- *from_return = from;
- *to_return = to;
- return (True);
- }
-
- return (False);
-}
-#endif /* OLDXAW */
-
-/* FormParagraph() - action
- *
- * removes and reinserts CRs to maximize line length without clipping */
-/*ARGSUSED*/
-static void
-FormParagraph(Widget w, XEvent *event, String *params, Cardinal *num_params)
-{
- TextWidget ctx = (TextWidget)w;
- XawTextPosition from, to, buf[32], *pos;
-#ifndef OLDXAW
- XawTextPosition endPos = 0;
- char *lbuf = NULL, *rbuf;
- TextSrcObject src = (TextSrcObject)ctx->text.source;
- Cardinal i;
- Bool undo = src->textSrc.enable_undo && src->textSrc.undo_state == False;
-#endif
-
- StartAction(ctx, event);
-
-#ifndef OLDXAW
- pos = XawStackAlloc(sizeof(XawTextPosition) * src->textSrc.num_text, buf);
- for (i = 0; i < src->textSrc.num_text; i++)
- pos[i] = ((TextWidget)src->textSrc.text[i])->text.old_insert;
-#else
- pos = buf;
- *pos = ctx->text.old_insert;
-#endif
-
-#ifndef OLDXAW
- if (!GetBlockBoundaries(ctx, &from, &to)) {
- EndAction(ctx);
- XawStackFree(pos, buf);
- return;
- }
-
- if (undo) {
- src->textSrc.undo_state = True;
- lbuf = _XawTextGetText(ctx, from, to);
- endPos = ctx->text.lastPos;
- }
-
- if (FormRegion(ctx, from, to, pos, src->textSrc.num_text) == XawReplaceError) {
-#else
- from = SrcScan(ctx->text.source, ctx->text.insertPos,
- XawstParagraph, XawsdLeft, 1, False);
- to = SrcScan(ctx->text.source, from,
- XawstParagraph, XawsdRight, 1, False);
-
- if (FormRegion(ctx, from, to, pos, 1) == XawReplaceError) {
-#endif
- XawStackFree(pos, buf);
- XBell(XtDisplay(w), 0);
-#ifndef OLDXAW
- if (undo) {
- src->textSrc.undo_state = False;
- XtFree(lbuf);
- }
-#endif
- }
-#ifndef OLDXAW
- else if (undo) {
- /* makes the form-paragraph only one undo/redo step */
- unsigned llen, rlen, size;
- XawTextBlock block;
-
- llen = to - from;
- rlen = llen + (ctx->text.lastPos - endPos);
-
- block.firstPos = 0;
- block.format = _XawTextFormat(ctx);
-
- rbuf = _XawTextGetText(ctx, from, from + rlen);
-
- size = XawTextFormat(ctx, XawFmtWide) ? sizeof(wchar_t) : sizeof(char);
- if (llen != rlen || memcmp(lbuf, rbuf, llen * size)) {
- block.ptr = lbuf;
- block.length = llen;
- _XawTextReplace(ctx, from, from + rlen, &block);
-
- src->textSrc.undo_state = False;
- block.ptr = rbuf;
- block.length = rlen;
- _XawTextReplace(ctx, from, from + llen, &block);
- }
- else
- src->textSrc.undo_state = False;
- XtFree(lbuf);
- XtFree(rbuf);
- }
-
- for (i = 0; i < src->textSrc.num_text; i++) {
- TextWidget tw = (TextWidget)src->textSrc.text[i];
-
- tw->text.old_insert = tw->text.insertPos = pos[i];
- _XawTextBuildLineTable(tw, SrcScan((Widget)src, tw->text.lt.top, XawstEOL,
- XawsdLeft, 1, False), False);
- tw->text.clear_to_eol = True;
- }
-#else
- ctx->text.old_insert = ctx->text.insertPos = *pos;
- _XawTextBuildLineTable(ctx, SrcScan(ctx->text.source, ctx->text.lt.top,
- XawstEOL, XawsdLeft, 1, False), False);
- ctx->text.clear_to_eol = True;
-#endif
- XawStackFree(pos, buf);
- ctx->text.showposition = True;
-
- EndAction(ctx);
-}
-
-/* TransposeCharacters() - action
- *
- * Swaps the character to the left of the mark
- * with the character to the right of the mark */
-/*ARGSUSED*/
-static void
-TransposeCharacters(Widget w, XEvent *event,
- String *params, Cardinal *num_params)
-{
- TextWidget ctx = (TextWidget)w;
- XawTextPosition start, end;
- XawTextBlock text;
- char *buf;
- int i, mult = MULT(ctx);
-
- if (mult < 0) {
- ctx->text.mult = 1;
- return;
- }
-
- StartAction(ctx, event);
-
- /* Get bounds. */
-
- start = SrcScan(ctx->text.source, ctx->text.insertPos, XawstPositions,
- XawsdLeft, 1, True);
- end = SrcScan(ctx->text.source, ctx->text.insertPos, XawstPositions,
- XawsdRight, mult, True);
-
- /* Make sure we aren't at the very beginning or end of the buffer. */
-
- if (start == ctx->text.insertPos || end == ctx->text.insertPos) {
- XBell(XtDisplay(w), 0); /* complain. */
- EndAction(ctx);
- return;
- }
-
- ctx->text.from_left = -1;
- ctx->text.insertPos = end;
-
- text.firstPos = 0;
- text.format = _XawTextFormat(ctx);
-
- /* Retrieve text and swap the characters. */
- if (text.format == XawFmtWide) {
- wchar_t wc;
- wchar_t *wbuf;
-
- wbuf = (wchar_t*)_XawTextGetText(ctx, start, end);
- text.length = wcslen(wbuf);
- wc = wbuf[0];
- for (i = 1; i < text.length; i++)
- wbuf[i - 1] = wbuf[i];
- wbuf[i - 1] = wc;
- buf = (char*)wbuf; /* so that it gets assigned and freed */
- }
- else { /* thus text.format == XawFmt8Bit */
- char c;
-
- buf = _XawTextGetText(ctx, start, end);
- text.length = strlen(buf);
- c = buf[0];
- for (i = 1; i < text.length; i++)
- buf[i - 1] = buf[i];
- buf[i - 1] = c;
- }
-
- text.ptr = buf;
-
- /* Store new text in source. */
-
- if (_XawTextReplace (ctx, start, end, &text))
- XBell(XtDisplay(w), 0);
- XtFree((char *)buf);
- EndAction(ctx);
-}
-
-#ifndef OLDXAW
-/*ARGSUSED*/
-static void
-Undo(Widget w, XEvent *event, String *params, Cardinal *num_params)
-{
- TextWidget ctx = (TextWidget)w;
- int mul = MULT(ctx);
- Bool toggle = False;
-
- if (mul < 0) {
- toggle = True;
- _XawTextSrcToggleUndo((TextSrcObject)ctx->text.source);
- ctx->text.mult = mul = -mul;
- }
-
- StartAction(ctx, event);
- for (; mul; --mul)
- if (!_XawTextSrcUndo((TextSrcObject)ctx->text.source, &ctx->text.insertPos))
- break;
- ctx->text.showposition = True;
-
- if (toggle)
- _XawTextSrcToggleUndo((TextSrcObject)ctx->text.source);
- EndAction(ctx);
-}
-#endif
-
-/* NoOp() - action
- * This action performs no action, and allows the user or
- * application programmer to unbind a translation.
- *
- * Note: If the parameter list contains the string "RingBell" then
- * this action will ring the bell.
- */
-/*ARGSUSED*/
-static void
-NoOp(Widget w, XEvent *event, String *params, Cardinal *num_params)
-{
- if (*num_params != 1)
- return;
-
- switch(params[0][0]) {
- case 'R':
- case 'r':
- XBell(XtDisplay(w), 0);
- /*FALLTROUGH*/
- default:
- break;
- }
-}
-
-/* Reconnect() - action
- * This reconnects to the input method. The user will typically call
- * this action if/when connection has been severed, or when the app
- * was started up before an IM was started up
- */
-/*ARGSUSED*/
-static void
-Reconnect(Widget w, XEvent *event, String *params, Cardinal *num_params)
-{
- _XawImReconnect(w);
-}
-
-#define CAPITALIZE 1
-#define DOWNCASE 2
-#define UPCASE 3
-
-#ifdef NO_LIBC_I18N
-static int
-ToLower(int ch)
-{
- char buf[2];
-
- *buf = ch;
- XmuNCopyISOLatin1Lowered(buf, buf, sizeof(buf));
-
- return (*buf);
-}
-
-static int
-ToUpper(int ch)
-{
- char buf[2];
-
- *buf = ch;
- XmuNCopyISOLatin1Uppered(buf, buf, sizeof(buf));
-
- return (*buf);
-}
-
-static int
-IsAlnum(int ch)
-{
- return ((ch >= '0' && ch <= '9') || ToUpper(ch) != ch || ToLower(ch) != ch);
-}
-
-static int
-IsLower(int ch)
-{
- char upbuf[2];
- char lobuf[2];
-
- *upbuf = *lobuf = ch;
- XmuNCopyISOLatin1Lowered(lobuf, lobuf, sizeof(lobuf));
- XmuNCopyISOLatin1Uppered(upbuf, upbuf, sizeof(upbuf));
-
- return (*lobuf != *upbuf && ch == *lobuf);
-}
-
-static int
-IsUpper(int ch)
-{
- char upbuf[2];
- char lobuf[2];
-
- *upbuf = *lobuf = ch;
- XmuNCopyISOLatin1Lowered(lobuf, lobuf, sizeof(lobuf));
- XmuNCopyISOLatin1Uppered(upbuf, upbuf, sizeof(upbuf));
-
- return (*lobuf != *upbuf && ch == *upbuf);
-}
-#else
-#define ToLower tolower
-#define ToUpper toupper
-#define IsAlnum isalnum
-#define IsLower islower
-#define IsUpper isupper
-#endif
-
-static void
-CaseProc(Widget w, XEvent *event, int cmd)
-{
- TextWidget ctx = (TextWidget)w;
- short mul = MULT(ctx);
- XawTextPosition left, right;
- XawTextBlock block;
- Bool changed = False;
- unsigned char ch, mb[sizeof(wchar_t)];
- int i, count;
-
- if (mul > 0)
- right = SrcScan(ctx->text.source, left = ctx->text.insertPos,
- XawstAlphaNumeric, XawsdRight, mul, False);
- else
- left = SrcScan(ctx->text.source, right = ctx->text.insertPos,
- XawstAlphaNumeric, XawsdLeft, 1 + -mul, False);
- block.firstPos = 0;
- block.format = _XawTextFormat(ctx);
- block.length = right - left;
- block.ptr = _XawTextGetText(ctx, left, right);
-
- count = 0;
- if (block.format == XawFmt8Bit)
- for (i = 0; i < block.length; i++) {
- if (!IsAlnum(*mb = (unsigned char)block.ptr[i]))
- count = 0;
- else if (++count == 1 || cmd != CAPITALIZE) {
- ch = cmd == DOWNCASE ? ToLower(*mb) : ToUpper(*mb);
- if (ch != *mb) {
- changed = True;
- block.ptr[i] = ch;
- }
- }
- else if (cmd == CAPITALIZE) {
- if ((ch = ToLower(*mb)) != *mb) {
- changed = True;
- block.ptr[i] = ch;
- }
- }
- }
- else
- for (i = 0; i < block.length; i++) {
- wctomb((char*)mb, ((wchar_t*)block.ptr)[i]);
- if (!IsAlnum(*mb))
- count = 0;
- else if (++count == 1 || cmd != CAPITALIZE) {
- ch = cmd == DOWNCASE ? ToLower(*mb) : ToUpper(*mb);
- if (ch != *mb) {
- changed = True;
- ((wchar_t*)block.ptr)[i] = _Xaw_atowc(ch);
- }
- }
- else if (cmd == CAPITALIZE) {
- if ((ch = ToLower(*mb)) != *mb) {
- changed = True;
- ((wchar_t*)block.ptr)[i] = _Xaw_atowc(ch);
- }
- }
- }
-
- StartAction(ctx, event);
- if (changed && _XawTextReplace(ctx, left, right, &block) != XawEditDone)
- XBell(XtDisplay(ctx), 0);
- ctx->text.insertPos = right;
- EndAction(ctx);
-
- XtFree(block.ptr);
-}
-
-/*ARGSUSED*/
-static void
-CapitalizeWord(Widget w, XEvent *event, String *params, Cardinal *num_params)
-{
- CaseProc(w, event, CAPITALIZE);
-}
-
-/*ARGSUSED*/
-static void
-DowncaseWord(Widget w, XEvent *event, String *params, Cardinal *num_params)
-{
- CaseProc(w, event, DOWNCASE);
-}
-
-/*ARGSUSED*/
-static void
-UpcaseWord(Widget w, XEvent *event, String *params, Cardinal *num_params)
-{
- CaseProc(w, event, UPCASE);
-}
-#undef CAPITALIZE
-#undef DOWNCASE
-#undef UPCASE
-
-XtActionsRec _XawTextActionsTable[] = {
- /* motion */
- {"forward-character", MoveForwardChar},
- {"backward-character", MoveBackwardChar},
- {"forward-word", MoveForwardWord},
- {"backward-word", MoveBackwardWord},
- {"forward-paragraph", MoveForwardParagraph},
- {"backward-paragraph", MoveBackwardParagraph},
- {"beginning-of-line", MoveToLineStart},
- {"end-of-line", MoveToLineEnd},
- {"next-line", MoveNextLine},
- {"previous-line", MovePreviousLine},
- {"next-page", MoveNextPage},
- {"previous-page", MovePreviousPage},
- {"beginning-of-file", MoveBeginningOfFile},
- {"end-of-file", MoveEndOfFile},
- {"scroll-one-line-up", ScrollOneLineUp},
- {"scroll-one-line-down", ScrollOneLineDown},
-
- /* delete */
- {"delete-next-character", DeleteForwardChar},
- {"delete-previous-character", DeleteBackwardChar},
- {"delete-next-word", DeleteForwardWord},
- {"delete-previous-word", DeleteBackwardWord},
- {"delete-selection", DeleteCurrentSelection},
- {"delete", Delete},
-
- /* kill */
- {"kill-word", KillForwardWord},
- {"backward-kill-word", KillBackwardWord},
- {"kill-selection", KillCurrentSelection},
- {"kill-to-end-of-line", KillToEndOfLine},
- {"kill-to-end-of-paragraph", KillToEndOfParagraph},
-
- /* new line */
- {"newline-and-indent", InsertNewLineAndIndent},
- {"newline-and-backup", InsertNewLineAndBackup},
- {"newline", InsertNewLine},
-
- /* selection */
- {"select-word", SelectWord},
- {"select-all", SelectAll},
- {"select-start", SelectStart},
- {"select-adjust", SelectAdjust},
- {"select-end", SelectEnd},
- {"select-save", SelectSave},
- {"extend-start", ExtendStart},
- {"extend-adjust", ExtendAdjust},
- {"extend-end", ExtendEnd},
- {"insert-selection", InsertSelection},
-
- /* miscellaneous */
- {"redraw-display", RedrawDisplay},
- {"insert-file", _XawTextInsertFile},
- {"search", _XawTextSearch},
- {"insert-char", InsertChar},
- {"insert-string", InsertString},
- {"focus-in", TextFocusIn},
- {"focus-out", TextFocusOut},
- {"enter-window", TextEnterWindow},
- {"leave-window", TextLeaveWindow},
- {"display-caret", DisplayCaret},
- {"multiply", Multiply},
- {"form-paragraph", FormParagraph},
- {"transpose-characters", TransposeCharacters},
- {"set-keyboard-focus", SetKeyboardFocus},
-#ifndef OLDXAW
- {"numeric", Numeric},
- {"undo", Undo},
- {"keyboard-reset", KeyboardReset},
- {"kill-ring-yank", KillRingYank},
- {"toggle-overwrite", ToggleOverwrite},
- {"indent", Indent},
-#endif
- {"no-op", NoOp},
-
- /* case transformations */
- {"capitalize-word", CapitalizeWord},
- {"downcase-word", DowncaseWord},
- {"upcase-word", UpcaseWord},
-
- /* action to bind translations for text dialogs */
- {"InsertFileAction", _XawTextInsertFileAction},
- {"DoSearchAction", _XawTextDoSearchAction},
- {"DoReplaceAction", _XawTextDoReplaceAction},
- {"SetField", _XawTextSetField},
- {"PopdownSearchAction", _XawTextPopdownSearchAction},
-
- /* reconnect to Input Method */
- {"reconnect-im", Reconnect} /* Li Yuhong, Omron KK, 1991 */
-};
-
-Cardinal _XawTextActionsTableCount = XtNumber(_XawTextActionsTable);
+/* + +Copyright 1989, 1994, 1998 The Open Group + +Permission to use, copy, modify, distribute, and sell this software and its +documentation for any purpose is hereby granted without fee, provided that +the above copyright notice appear in all copies and that both that +copyright notice and this permission notice appear in supporting +documentation. + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN +AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +Except as contained in this notice, the name of The Open Group shall not be +used in advertising or otherwise to promote the sale, use or other dealings +in this Software without prior written authorization from The Open Group. + +*/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif +#include <stdio.h> +#include <stdlib.h> +#include <X11/Xos.h> /* for select() and struct timeval */ +#include <ctype.h> +#include <X11/IntrinsicP.h> +#include <X11/StringDefs.h> +#include <X11/Xatom.h> +#include <X11/Xfuncs.h> +#include <X11/Xutil.h> +#include <X11/Xwinsock.h> +#include <X11/Xmu/Atoms.h> +#include <X11/Xmu/Misc.h> +#include <X11/Xmu/StdSel.h> +#include <X11/Xmu/SysUtil.h> +#include <X11/Xaw/MultiSinkP.h> +#include <X11/Xaw/MultiSrcP.h> +#include <X11/Xaw/TextP.h> +#include <X11/Xaw/TextSrcP.h> +#include <X11/Xaw/XawImP.h> +#include "Private.h" +#include "XawI18n.h" + +#define SrcScan XawTextSourceScan +#define FindDist XawTextSinkFindDistance +#define FindPos XawTextSinkFindPosition +#define MULT(w) (w->text.mult == 0 ? 4 : \ + w->text.mult == 32767 ? -4 : w->text.mult) + +#define KILL_RING_APPEND 2 +#define KILL_RING_BEGIN 3 +#define KILL_RING_YANK 100 +#define KILL_RING_YANK_DONE 98 + +#define XawTextActionMaxHexChars 100 + +#ifdef _MSC_VER +#define usleep(time) Sleep(time) +#endif +/* + * Prototypes + */ +static void _DeleteOrKill(TextWidget, XawTextPosition, XawTextPosition, Bool); +static void _SelectionReceived(Widget, XtPointer, Atom*, Atom*, XtPointer, + unsigned long*, int*); +static void _LoseSelection(Widget, Atom*, char**, int*); +static void AutoFill(TextWidget); +static Boolean ConvertSelection(Widget, Atom*, Atom*, Atom*, XtPointer*, + unsigned long*, int*); +static void DeleteOrKill(TextWidget, XEvent*, XawTextScanDirection, + XawTextScanType, Bool, Bool); +static void EndAction(TextWidget); +#ifndef OLDXAW +static Bool BlankLine(Widget, XawTextPosition, int*); +static int DoFormatText(TextWidget, XawTextPosition, Bool, int, + XawTextBlock*, XawTextPosition*, int, Bool); +static int FormatText(TextWidget, XawTextPosition, Bool, + XawTextPosition*, int); +static Bool GetBlockBoundaries(TextWidget, XawTextPosition*, XawTextPosition*); +#endif +static int FormRegion(TextWidget, XawTextPosition, XawTextPosition, + XawTextPosition*, int); +static void GetSelection(Widget, Time, String*, Cardinal); +static char *IfHexConvertHexElseReturnParam(char*, int*); +static void InsertNewCRs(TextWidget, XawTextPosition, XawTextPosition, + XawTextPosition*, int); +static int InsertNewLineAndBackupInternal(TextWidget); +static int LocalInsertNewLine(TextWidget, XEvent*); +static void LoseSelection(Widget, Atom*); +static void ParameterError(Widget, String); +static Bool MatchSelection(Atom, XawTextSelection*); +static void ModifySelection(TextWidget, XEvent*, XawTextSelectionMode, + XawTextSelectionAction, String*, Cardinal*); +static void Move(TextWidget, XEvent*, XawTextScanDirection, XawTextScanType, + Bool); +static void NotePosition(TextWidget, XEvent*); +static void StartAction(TextWidget, XEvent*); +static XawTextPosition StripOutOldCRs(TextWidget, XawTextPosition, + XawTextPosition, XawTextPosition*, int); +#ifndef OLDXAW +static Bool StripSpaces(TextWidget, XawTextPosition, XawTextPosition, + XawTextPosition*, int, XawTextBlock*); +static Bool Tabify(TextWidget, XawTextPosition, XawTextPosition, + XawTextPosition*, int, XawTextBlock*); +static Bool Untabify(TextWidget, XawTextPosition, XawTextPosition, + XawTextPosition*, int, XawTextBlock*); +#endif + +/* + * Actions + */ +static void CapitalizeWord(Widget, XEvent*, String*, Cardinal*); +static void DisplayCaret(Widget, XEvent*, String*, Cardinal*); +static void Delete(Widget, XEvent*, String*, Cardinal*); +static void DeleteBackwardChar(Widget, XEvent*, String*, Cardinal*); +static void DeleteBackwardWord(Widget, XEvent*, String*, Cardinal*); +static void DeleteCurrentSelection(Widget, XEvent*, String*, Cardinal*); +static void DeleteForwardChar(Widget, XEvent*, String*, Cardinal*); +static void DeleteForwardWord(Widget, XEvent*, String*, Cardinal*); +static void DowncaseWord(Widget, XEvent*, String*, Cardinal*); +static void ExtendAdjust(Widget, XEvent*, String*, Cardinal*); +static void ExtendEnd(Widget, XEvent*, String*, Cardinal*); +static void ExtendStart(Widget, XEvent*, String*, Cardinal*); +static void FormParagraph(Widget, XEvent*, String*, Cardinal*); +#ifndef OLDXAW +static void Indent(Widget, XEvent*, String*, Cardinal*); +#endif +static void InsertChar(Widget, XEvent*, String*, Cardinal*); +static void InsertNewLine(Widget, XEvent*, String*, Cardinal*); +static void InsertNewLineAndBackup(Widget, XEvent*, String*, Cardinal*); +static void InsertNewLineAndIndent(Widget, XEvent*, String*, Cardinal*); +static void InsertSelection(Widget, XEvent*, String*, Cardinal*); +static void InsertString(Widget, XEvent*, String*, Cardinal*); +#ifndef OLDXAW +static void KeyboardReset(Widget, XEvent*, String*, Cardinal*); +#endif +static void KillBackwardWord(Widget, XEvent*, String*, Cardinal*); +static void KillCurrentSelection(Widget, XEvent*, String*, Cardinal*); +static void KillForwardWord(Widget, XEvent*, String*, Cardinal*); +#ifndef OLDXAW +static void KillRingYank(Widget, XEvent*, String*, Cardinal*); +#endif +static void KillToEndOfLine(Widget, XEvent*, String*, Cardinal*); +static void KillToEndOfParagraph(Widget, XEvent*, String*, Cardinal*); +static void MoveBackwardChar(Widget, XEvent*, String*, Cardinal*); +static void MoveBackwardWord(Widget, XEvent*, String*, Cardinal*); +static void MoveBackwardParagraph(Widget, XEvent*, String*, Cardinal*); +static void MoveBeginningOfFile(Widget, XEvent*, String*, Cardinal*); +static void MoveEndOfFile(Widget, XEvent*, String*, Cardinal*); +static void MoveForwardChar(Widget, XEvent*, String*, Cardinal*); +static void MoveForwardWord(Widget, XEvent*, String*, Cardinal*); +static void MoveForwardParagraph(Widget, XEvent*, String*, Cardinal*); +static void MoveNextLine(Widget, XEvent*, String*, Cardinal*); +static void MoveNextPage(Widget, XEvent*, String*, Cardinal*); +static void MovePage(TextWidget, XEvent*, XawTextScanDirection); +static void MovePreviousLine(Widget, XEvent*, String*, Cardinal*); +static void MovePreviousPage(Widget, XEvent*, String*, Cardinal*); +static void MoveLine(TextWidget, XEvent*, XawTextScanDirection); +static void MoveToLineEnd(Widget, XEvent*, String*, Cardinal*); +static void MoveToLineStart(Widget, XEvent*, String*, Cardinal*); +static void Multiply(Widget, XEvent*, String*, Cardinal*); +static void NoOp(Widget, XEvent*, String*, Cardinal*); +#ifndef OLDXAW +static void Numeric(Widget, XEvent*, String*, Cardinal*); +#endif +static void Reconnect(Widget, XEvent*, String*, Cardinal*); +static void RedrawDisplay(Widget, XEvent*, String*, Cardinal*); +static void Scroll(TextWidget, XEvent*, XawTextScanDirection); +static void ScrollOneLineDown(Widget, XEvent*, String*, Cardinal*); +static void ScrollOneLineUp(Widget, XEvent*, String*, Cardinal*); +static void SelectAdjust(Widget, XEvent*, String*, Cardinal*); +static void SelectAll(Widget, XEvent*, String*, Cardinal*); +static void SelectEnd(Widget, XEvent*, String*, Cardinal*); +static void SelectSave(Widget, XEvent*, String*, Cardinal*); +static void SelectStart(Widget, XEvent*, String*, Cardinal*); +static void SelectWord(Widget, XEvent*, String*, Cardinal*); +static void SetKeyboardFocus(Widget, XEvent*, String*, Cardinal*); +static void TextEnterWindow(Widget, XEvent*, String*, Cardinal*); +static void TextFocusIn(Widget, XEvent*, String*, Cardinal*); +static void TextFocusOut(Widget, XEvent*, String*, Cardinal*); +static void TextLeaveWindow(Widget, XEvent*, String*, Cardinal*); +static void TransposeCharacters(Widget, XEvent*, String*, Cardinal*); +#ifndef OLDXAW +static void ToggleOverwrite(Widget, XEvent*, String*, Cardinal*); +static void Undo(Widget, XEvent*, String*, Cardinal*); +#endif +static void UpcaseWord(Widget, XEvent*, String*, Cardinal*); +static void DestroyFocusCallback(Widget, XtPointer, XtPointer); + +/* + * External + */ +void _XawTextZapSelection(TextWidget, XEvent*, Bool); + +/* + * Defined in TextPop.c + */ +void _XawTextInsertFileAction(Widget, XEvent*, String*, Cardinal*); +void _XawTextInsertFile(Widget, XEvent*, String*, Cardinal*); +void _XawTextSearch(Widget, XEvent*, String*, Cardinal*); +void _XawTextDoSearchAction(Widget, XEvent*, String*, Cardinal*); +void _XawTextDoReplaceAction(Widget, XEvent*, String*, Cardinal*); +void _XawTextSetField(Widget, XEvent*, String*, Cardinal*); +void _XawTextPopdownSearchAction(Widget, XEvent*, String*, Cardinal*); + +/* + * These are defined in Text.c + */ +void _XawTextAlterSelection(TextWidget, XawTextSelectionMode, + XawTextSelectionAction, String*, Cardinal*); +void _XawTextClearAndCenterDisplay(TextWidget); +void _XawTextExecuteUpdate(TextWidget); +char *_XawTextGetText(TextWidget, XawTextPosition, XawTextPosition); +void _XawTextPrepareToUpdate(TextWidget); +int _XawTextReplace(TextWidget, XawTextPosition, XawTextPosition, + XawTextBlock*); +Atom *_XawTextSelectionList(TextWidget, String*, Cardinal); +void _XawTextSetSelection(TextWidget, XawTextPosition, XawTextPosition, + String*, Cardinal); +void _XawTextVScroll(TextWidget, int); +void XawTextScroll(TextWidget, int, int); +void _XawTextSetLineAndColumnNumber(TextWidget, Bool); + +#ifndef OLDXAW +/* + * Defined in TextSrc.c + */ +Bool _XawTextSrcUndo(TextSrcObject, XawTextPosition*); +Bool _XawTextSrcToggleUndo(TextSrcObject); +void _XawSourceSetUndoErase(TextSrcObject, int); +void _XawSourceSetUndoMerge(TextSrcObject, Bool); +#endif /* OLDXAW */ + +/* + * Initialization + */ +#ifndef OLDXAW +#define MAX_KILL_RINGS 1024 +XawTextKillRing *xaw_text_kill_ring; +static XawTextKillRing kill_ring_prev, kill_ring_null = { &kill_ring_prev, }; +static unsigned num_kill_rings; +#endif + +/* + * Implementation + */ +static void +ParameterError(Widget w, String param) +{ + String params[2]; + Cardinal num_params = 2; + params[0] = XtName(w); + params[1] = param; + + XtAppWarningMsg(XtWidgetToApplicationContext(w), + "parameterError", "textAction", "XawError", + "Widget: %s Parameter: %s", + params, &num_params); + XBell(XtDisplay(w), 50); +} + +static void +StartAction(TextWidget ctx, XEvent *event) +{ +#ifndef OLDXAW + Cardinal i; + TextSrcObject src = (TextSrcObject)ctx->text.source; + + for (i = 0; i < src->textSrc.num_text; i++) + _XawTextPrepareToUpdate((TextWidget)src->textSrc.text[i]); + _XawSourceSetUndoMerge(src, False); +#else + _XawTextPrepareToUpdate(ctx); +#endif + + if (event != NULL) { + switch (event->type) { + case ButtonPress: + case ButtonRelease: + ctx->text.time = event->xbutton.time; + break; + case KeyPress: + case KeyRelease: + ctx->text.time = event->xkey.time; + break; + case MotionNotify: + ctx->text.time = event->xmotion.time; + break; + case EnterNotify: + case LeaveNotify: + ctx->text.time = event->xcrossing.time; + } + } +} + +static void +NotePosition(TextWidget ctx, XEvent *event) +{ + switch (event->type) { + case ButtonPress: + case ButtonRelease: + ctx->text.ev_x = event->xbutton.x; + ctx->text.ev_y = event->xbutton.y; + break; + case KeyPress: + case KeyRelease: { + XRectangle cursor; + XawTextSinkGetCursorBounds(ctx->text.sink, &cursor); + ctx->text.ev_x = cursor.x + cursor.width / 2; + ctx->text.ev_y = cursor.y + cursor.height / 2; + } break; + case MotionNotify: + ctx->text.ev_x = event->xmotion.x; + ctx->text.ev_y = event->xmotion.y; + break; + case EnterNotify: + case LeaveNotify: + ctx->text.ev_x = event->xcrossing.x; + ctx->text.ev_y = event->xcrossing.y; + } +} + +static void +EndAction(TextWidget ctx) +{ +#ifndef OLDXAW + Cardinal i; + TextSrcObject src = (TextSrcObject)ctx->text.source; + + for (i = 0; i < src->textSrc.num_text; i++) + _XawTextExecuteUpdate((TextWidget)src->textSrc.text[i]); + + ctx->text.mult = 1; + ctx->text.numeric = False; + if (ctx->text.kill_ring) { + if (--ctx->text.kill_ring == KILL_RING_YANK_DONE) { + if (ctx->text.kill_ring_ptr) { + --ctx->text.kill_ring_ptr->refcount; + ctx->text.kill_ring_ptr = NULL; + } + } + } +#else + ctx->text.mult = 1; + _XawTextExecuteUpdate(ctx); +#endif /* OLDXAW */ +} + +struct _SelectionList { + String* params; + Cardinal count; + Time time; + int asked; /* which selection currently has been asked for: + 0 = UTF8_STRING, 1 = COMPOUND_TEXT, 2 = STRING */ + Atom selection; /* selection atom (normally XA_PRIMARY) */ +}; + +/*ARGSUSED*/ +static void +_SelectionReceived(Widget w, XtPointer client_data, Atom *selection, + Atom *type, XtPointer value, unsigned long *length, + int *format) +{ + Display *d = XtDisplay(w); + TextWidget ctx = (TextWidget)w; + XawTextBlock text; + + if (*type == 0 /*XT_CONVERT_FAIL*/ || *length == 0) { + struct _SelectionList* list = (struct _SelectionList*)client_data; + + if (list != NULL) { + if (list->asked == 0) { + /* If we just asked for XA_UTF8_STRING and got no response, + we'll ask again, this time for XA_COMPOUND_TEXT. */ + list->asked++; + XtGetSelectionValue(w, list->selection, XA_COMPOUND_TEXT(d), + _SelectionReceived, + (XtPointer)list, list->time); + } else if (list->asked == 1) { + /* If we just asked for XA_COMPOUND_TEXT and got no response, + we'll ask again, this time for XA_STRING. */ + list->asked++; + XtGetSelectionValue(w, list->selection, XA_STRING, + _SelectionReceived, + (XtPointer)list, list->time); + } else { + /* We tried all possible text targets in this param. + Recurse on the tail of the params list. */ + GetSelection(w, list->time, list->params, list->count); + XtFree(client_data); + } + } + return; + } + + StartAction(ctx, NULL); + if (XawTextFormat(ctx, XawFmtWide)) { + XTextProperty textprop; + wchar_t **wlist; + int count; + + textprop.encoding = *type; + textprop.value = (unsigned char *)value; + textprop.nitems = strlen(value); + textprop.format = 8; + + if (XwcTextPropertyToTextList(d, &textprop, &wlist, &count) + != Success + || count < 1) { + XwcFreeStringList(wlist); + + /* Notify the user on strerr and in the insertion :) */ + fprintf(stderr, "Xaw Text Widget: An attempt was made to insert " + "an illegal selection.\n"); + + textprop.value = (unsigned char *)" >> ILLEGAL SELECTION << "; + textprop.nitems = strlen((char *) textprop.value); + if (XwcTextPropertyToTextList(d, &textprop, &wlist, &count) + != Success + || count < 1) + return; + } + + XFree(value); + value = (XPointer)wlist[0]; + + *length = wcslen(wlist[0]); + XtFree((XtPointer)wlist); + text.format = XawFmtWide; + } + text.ptr = (char*)value; + text.firstPos = 0; + text.length = *length; + if (_XawTextReplace(ctx, ctx->text.insertPos, ctx->text.insertPos, &text)) { + XBell(XtDisplay(ctx), 0); + EndAction(ctx); + return; + } + + ctx->text.from_left = -1; + ctx->text.insertPos = SrcScan(ctx->text.source, ctx->text.old_insert, + XawstPositions, XawsdRight, text.length, True); + + EndAction(ctx); + XtFree(client_data); + XFree(value); /* the selection value should be freed with XFree */ +} + +static void +GetSelection(Widget w, Time timev, String *params, Cardinal num_params) +{ + Display *d = XtDisplay(w); + TextWidget ctx = (TextWidget)w; + Atom selection; + int buffer; + + selection = XInternAtom(XtDisplay(w), *params, False); + switch (selection) { + case XA_CUT_BUFFER0: buffer = 0; break; + case XA_CUT_BUFFER1: buffer = 1; break; + case XA_CUT_BUFFER2: buffer = 2; break; + case XA_CUT_BUFFER3: buffer = 3; break; + case XA_CUT_BUFFER4: buffer = 4; break; + case XA_CUT_BUFFER5: buffer = 5; break; + case XA_CUT_BUFFER6: buffer = 6; break; + case XA_CUT_BUFFER7: buffer = 7; break; + default: buffer = -1; + } + if (buffer >= 0) { + int nbytes; + unsigned long length; + int fmt8 = 8; + Atom type = XA_STRING; + char *line = XFetchBuffer(XtDisplay(w), &nbytes, buffer); + + if ((length = nbytes) != 0L) + _SelectionReceived(w, NULL, &selection, &type, line, &length, &fmt8); + else if (num_params > 1) + GetSelection(w, timev, params+1, num_params-1); + } + else { + struct _SelectionList* list; + + if (--num_params) { + list = XtNew(struct _SelectionList); + list->params = params + 1; + list->count = num_params; + list->time = timev; + list->asked = 0; + list->selection = selection; + } + else + list = NULL; + XtGetSelectionValue(w, selection, XawTextFormat(ctx, XawFmtWide) ? + XA_UTF8_STRING(d) : XA_TEXT(d), + _SelectionReceived, (XtPointer)list, timev); + } +} + +static void +InsertSelection(Widget w, XEvent *event, String *params, Cardinal *num_params) +{ + StartAction((TextWidget)w, event); /* Get Time. */ + GetSelection(w, ((TextWidget)w)->text.time, params, *num_params); + EndAction((TextWidget)w); +} + +/* + * Routines for Moving Around + */ +static void +Move(TextWidget ctx, XEvent *event, XawTextScanDirection dir, + XawTextScanType type, Bool include) +{ + XawTextPosition insertPos; + short mult = MULT(ctx); + + if (mult < 0) { + mult = -mult; + dir = dir == XawsdLeft ? XawsdRight : XawsdLeft; + } + + insertPos = SrcScan(ctx->text.source, ctx->text.insertPos, + type, dir, mult, include); + + StartAction(ctx, event); + + if (ctx->text.s.left != ctx->text.s.right) + XawTextUnsetSelection((Widget)ctx); + +#ifndef OLDXAW + ctx->text.numeric = False; +#endif + ctx->text.mult = 1; + ctx->text.showposition = True; + ctx->text.from_left = -1; + ctx->text.insertPos = insertPos; + EndAction(ctx); +} + +/*ARGSUSED*/ +static void +MoveForwardChar(Widget w, XEvent *event, String *p, Cardinal *n) +{ + Move((TextWidget)w, event, XawsdRight, XawstPositions, True); +} + +/*ARGSUSED*/ +static void +MoveBackwardChar(Widget w, XEvent *event, String *p, Cardinal *n) +{ + Move((TextWidget)w, event, XawsdLeft, XawstPositions, True); +} + +static void +MoveForwardWord(Widget w, XEvent *event, String *p, Cardinal *n) +{ + if (*n && (p[0][0] == 'A' || p[0][0] == 'a')) + Move((TextWidget)w, event, XawsdRight, XawstAlphaNumeric, False); + else + Move((TextWidget)w, event, XawsdRight, XawstWhiteSpace, False); +} + +static void +MoveBackwardWord(Widget w, XEvent *event, String *p, Cardinal *n) +{ + if (*n && (p[0][0] == 'A' || p[0][0] == 'a')) + Move((TextWidget)w, event, XawsdLeft, XawstAlphaNumeric, False); + else + Move((TextWidget)w, event, XawsdLeft, XawstWhiteSpace, False); +} + +static void +MoveForwardParagraph(Widget w, XEvent *event, String *p, Cardinal *n) +{ + TextWidget ctx = (TextWidget)w; + XawTextPosition position = ctx->text.insertPos; + short mult = MULT(ctx); + + if (mult < 0) { + ctx->text.mult = -mult; + MoveBackwardParagraph(w, event, p, n); + return; + } + + while (mult--) { + position = SrcScan(ctx->text.source, position, + XawstEOL, XawsdRight, 1, False) - 1; + + while (position == SrcScan(ctx->text.source, position, + XawstEOL, XawsdRight, 1, False)) + if (++position > ctx->text.lastPos) { + mult = 0; + break; + } + + position = SrcScan(ctx->text.source, position, + XawstParagraph, XawsdRight, 1, True); + if (position != ctx->text.lastPos) + position = SrcScan(ctx->text.source, position - 1, + XawstEOL, XawsdLeft, 1, False); + else + break; + } + + if (position != ctx->text.insertPos) { + XawTextUnsetSelection(w); + StartAction(ctx, event); + ctx->text.showposition = True; + ctx->text.from_left = -1; + ctx->text.insertPos = position; + EndAction(ctx); + } + else + ctx->text.mult = 1; +} + +/*ARGSUSED*/ +static void +MoveBackwardParagraph(Widget w, XEvent *event, String *p, Cardinal *n) +{ + TextWidget ctx = (TextWidget)w; + XawTextPosition position = ctx->text.insertPos; + short mult = MULT(ctx); + + if (mult < 0) { + ctx->text.mult = -mult; + MoveForwardParagraph(w, event, p, n); + return; + } + + while (mult--) { + position = SrcScan(ctx->text.source, position, + XawstEOL, XawsdLeft, 1, False) + 1; + + while (position == SrcScan(ctx->text.source, position, + XawstEOL, XawsdLeft, 1, False)) + if (--position < 0) { + mult = 0; + break; + } + + position = SrcScan(ctx->text.source, position, + XawstParagraph, XawsdLeft, 1, True); + if (position > 0 && position < ctx->text.lastPos) + ++position; + else + break; + } + + if (position != ctx->text.insertPos) { + XawTextUnsetSelection(w); + StartAction(ctx, event); + ctx->text.showposition = True; + ctx->text.from_left = -1; + ctx->text.insertPos = position; + EndAction(ctx); + } + else + ctx->text.mult = 1; +} + +/*ARGSUSED*/ +static void +MoveToLineEnd(Widget w, XEvent *event, String *p, Cardinal *n) +{ + Move((TextWidget)w, event, XawsdRight, XawstEOL, False); +} + +/*ARGSUSED*/ +static void +MoveToLineStart(Widget w, XEvent *event, String *p, Cardinal *n) +{ + Move((TextWidget)w, event, XawsdLeft, XawstEOL, False); +} + +static void +MoveLine(TextWidget ctx, XEvent *event, XawTextScanDirection dir) +{ + XawTextPosition cnew, next_line, ltemp; + int itemp, from_left; + short mult = MULT(ctx); + + StartAction(ctx, event); + + XawTextUnsetSelection((Widget)ctx); + + if (dir == XawsdLeft) + mult = mult == 0 ? 5 : mult + 1; + + cnew = SrcScan(ctx->text.source, ctx->text.insertPos, + XawstEOL, XawsdLeft, 1, False); + + if (ctx->text.from_left < 0) + FindDist(ctx->text.sink, cnew, ctx->text.left_margin, ctx->text.insertPos, + &ctx->text.from_left, <emp, &itemp); + + cnew = SrcScan(ctx->text.source, ctx->text.insertPos, XawstEOL, dir, + mult, (dir == XawsdRight)); + + next_line = SrcScan(ctx->text.source, cnew, XawstEOL, XawsdRight, 1, False); + + FindPos(ctx->text.sink, cnew, ctx->text.left_margin, ctx->text.from_left, + False, &ctx->text.insertPos, &from_left, &itemp); + + if (from_left < ctx->text.from_left) { + XawTextBlock block; + + XawTextSourceRead(ctx->text.source, ctx->text.insertPos, &block, 1); + if (block.length) { + if (XawTextFormat(ctx, XawFmtWide)) { + if (*(wchar_t *)block.ptr == _Xaw_atowc(XawTAB)) + ++ctx->text.insertPos; + } + else if (block.ptr[0] == XawTAB) + ++ctx->text.insertPos; + } + } + + if (ctx->text.insertPos > next_line) + ctx->text.insertPos = next_line; + + EndAction(ctx); +} + +static void +MoveNextLine(Widget w, XEvent *event, String *p, Cardinal *n) +{ + TextWidget ctx = (TextWidget)w; + short mult = MULT(ctx); + + if (mult < 0) { + ctx->text.mult = -mult; + MovePreviousLine(w, event, p, n); + return; + } + + if (ctx->text.insertPos < ctx->text.lastPos) + MoveLine(ctx, event, XawsdRight); + else + ctx->text.mult = 1; +} + +static void +MovePreviousLine(Widget w, XEvent *event, String *p, Cardinal *n) +{ + TextWidget ctx = (TextWidget)w; + short mult = MULT(ctx); + + if (mult < 0) { + ctx->text.mult = -mult; + MoveNextLine(w, event, p, n); + return; + } + + if (ctx->text.lt.top != 0 || (ctx->text.lt.lines > 1 && + ctx->text.insertPos >= ctx->text.lt.info[1].position)) + MoveLine(ctx, event, XawsdLeft); + else + ctx->text.mult = 1; +} + +/*ARGSUSED*/ +static void +MoveBeginningOfFile(Widget w, XEvent *event, String *p, Cardinal *n) +{ + Move((TextWidget)w, event, XawsdLeft, XawstAll, True); +} + +/*ARGSUSED*/ +static void +MoveEndOfFile(Widget w, XEvent *event, String *p, Cardinal *n) +{ + Move((TextWidget)w, event, XawsdRight, XawstAll, True); +} + +static void +Scroll(TextWidget ctx, XEvent *event, XawTextScanDirection dir) +{ + short mult = MULT(ctx); + + if (mult < 0) { + mult = -mult; + dir = dir == XawsdLeft ? XawsdRight : XawsdLeft; + } + + if (ctx->text.lt.lines > 1 + && (dir == XawsdRight + || ctx->text.lastPos >= ctx->text.lt.info[1].position)) { + StartAction(ctx, event); + + if (dir == XawsdLeft) + _XawTextVScroll(ctx, mult); + else + _XawTextVScroll(ctx, -mult); + + EndAction(ctx); + } + else { + ctx->text.mult = 1; +#ifndef OLDXAW + ctx->text.numeric = False; +#endif + } +} + +/*ARGSUSED*/ +static void +ScrollOneLineUp(Widget w, XEvent *event, String *p, Cardinal *n) +{ + Scroll((TextWidget)w, event, XawsdLeft); +} + +/*ARGSUSED*/ +static void +ScrollOneLineDown(Widget w, XEvent *event, String *p, Cardinal *n) +{ + Scroll((TextWidget)w, event, XawsdRight); +} + +static void +MovePage(TextWidget ctx, XEvent *event, XawTextScanDirection dir) +{ + int scroll_val = 0; + XawTextPosition old_pos; + + ctx->text.from_left = -1; + switch (dir) { + case XawsdLeft: + if (ctx->text.lt.top != 0) + scroll_val = -Max(1, ctx->text.lt.lines - 1); + break; + case XawsdRight: + if (!IsPositionVisible(ctx, Max(0, ctx->text.lastPos))) + scroll_val = Max(1, ctx->text.lt.lines - 1); + break; + } + + if (scroll_val) + XawTextScroll(ctx, scroll_val, + ctx->text.left_margin - ctx->text.r_margin.left); + + old_pos = ctx->text.insertPos; + switch (dir) { + case XawsdRight: + if (IsPositionVisible(ctx, Max(0, ctx->text.lastPos))) + ctx->text.insertPos = Max(0, ctx->text.lastPos); + else + ctx->text.insertPos = ctx->text.lt.top; + if (ctx->text.insertPos < old_pos) + ctx->text.insertPos = SrcScan(ctx->text.source, old_pos, + XawstEOL, XawsdLeft, 1, False); + break; + case XawsdLeft: + if (IsPositionVisible(ctx, 0)) + ctx->text.insertPos = 0; + else if (ctx->text.lt.lines) + ctx->text.insertPos = + ctx->text.lt.info[ctx->text.lt.lines - 1].position; + else + ctx->text.insertPos = ctx->text.lt.top; + if (ctx->text.insertPos > old_pos) + ctx->text.insertPos = SrcScan(ctx->text.source, old_pos, + XawstEOL, XawsdLeft, 1, False); + break; + } +} + +static void +MoveNextPage(Widget w, XEvent *event, String *p, Cardinal *n) +{ + TextWidget ctx = (TextWidget)w; + short mult = MULT(ctx); + + if (mult < 0) { + ctx->text.mult = -mult; + MovePreviousPage(w, event, p, n); + return; + } + + if (ctx->text.insertPos < ctx->text.lastPos) { + XawTextUnsetSelection(w); + StartAction(ctx, event); + ctx->text.clear_to_eol = True; + while (mult-- && ctx->text.insertPos < ctx->text.lastPos) + MovePage(ctx, event, XawsdRight); + EndAction(ctx); + } + else + ctx->text.mult = 1; +} + +/*ARGSUSED*/ +static void +MovePreviousPage(Widget w, XEvent *event, String *p, Cardinal *n) +{ + TextWidget ctx = (TextWidget)w; + short mult = MULT(ctx); + + if (mult < 0) { + ctx->text.mult = -mult; + MoveNextPage(w, event, p, n); + return; + } + + if (ctx->text.insertPos > 0) { + XawTextUnsetSelection(w); + StartAction(ctx, event); + ctx->text.clear_to_eol = True; + while (mult-- && ctx->text.insertPos > 0) + MovePage(ctx, event, XawsdLeft); + EndAction(ctx); + } + else + ctx->text.mult = 1; +} + +/* + * Delete Routines + */ +static Bool +MatchSelection(Atom selection, XawTextSelection *s) +{ + Atom *match; + int count; + + for (count = 0, match = s->selections; count < s->atom_count; + match++, count++) + if (*match == selection) + return (True); + + return (False); +} + +#define SrcCvtSel XawTextSourceConvertSelection + +static Boolean +ConvertSelection(Widget w, Atom *selection, Atom *target, Atom *type, + XtPointer *value, unsigned long *length, int *format) +{ + Display *d = XtDisplay(w); + TextWidget ctx = (TextWidget)w; + Widget src = ctx->text.source; + XawTextEditType edit_mode; + Arg args[1]; + XawTextSelectionSalt *salt = NULL; + XawTextSelection *s; + + if (*target == XA_TARGETS(d)) { + Atom *targetP, *std_targets; + unsigned long std_length; + + if (SrcCvtSel(src, selection, target, type, value, length, format)) + return (True); + + XtSetArg(args[0], XtNeditType,&edit_mode); + XtGetValues(src, args, 1); + + XmuConvertStandardSelection(w, ctx->text.time, selection, + target, type, (XPointer *)&std_targets, + &std_length, format); + + *length = 7 + (edit_mode == XawtextEdit) + std_length; + *value = XtMalloc((unsigned)sizeof(Atom)*(*length)); + targetP = *(Atom**)value; + *targetP++ = XA_STRING; + *targetP++ = XA_TEXT(d); + *targetP++ = XA_UTF8_STRING(d); + *targetP++ = XA_COMPOUND_TEXT(d); + *targetP++ = XA_LENGTH(d); + *targetP++ = XA_LIST_LENGTH(d); + *targetP++ = XA_CHARACTER_POSITION(d); + if (edit_mode == XawtextEdit) { + *targetP++ = XA_DELETE(d); + } + memcpy((char*)targetP, (char*)std_targets, sizeof(Atom)*std_length); + XtFree((char*)std_targets); + *type = XA_ATOM; + *format = 32; + return (True); + } + + if (SrcCvtSel(src, selection, target, type, value, length, format)) + return (True); + + for (salt = ctx->text.salt2; salt; salt = salt->next) + if (MatchSelection (*selection, &salt->s)) + break; + if (!salt) + return (False); + s = &salt->s; + if (*target == XA_STRING + || *target == XA_TEXT(d) + || *target == XA_UTF8_STRING(d) + || *target == XA_COMPOUND_TEXT(d)) { + if (*target == XA_TEXT(d)) { + if (XawTextFormat(ctx, XawFmtWide)) + *type = XA_COMPOUND_TEXT(d); + else + *type = XA_STRING; + } + else + *type = *target; + + /* + * If salt is True, the salt->contents stores CT string, + * its length is measured in bytes. + * Refer to _XawTextSaltAwaySelection() + * + * by Li Yuhong, Mar. 20, 1991. + */ + if (!salt) { + *value = (char *)_XawTextGetSTRING(ctx, s->left, s->right); + if (XawTextFormat(ctx, XawFmtWide)) { + XTextProperty textprop; + if (XwcTextListToTextProperty(d, (wchar_t**)value, 1, + XCompoundTextStyle, &textprop) + < Success) { + XtFree(*value); + return (False); + } + XtFree(*value); + *value = (XtPointer)textprop.value; + *length = textprop.nitems; + } + else + *length = strlen(*value); + } + else { + *value = XtMalloc((salt->length + 1) * sizeof(unsigned char)); + strcpy (*value, salt->contents); + *length = salt->length; + } + /* Got *value,*length, now in COMPOUND_TEXT format. */ + if (XawTextFormat(ctx, XawFmtWide)) { + if (*type == XA_STRING) { + XTextProperty textprop; + wchar_t **wlist; + int count; + + textprop.encoding = XA_COMPOUND_TEXT(d); + textprop.value = (unsigned char *)*value; + textprop.nitems = strlen(*value); + textprop.format = 8; + if (XwcTextPropertyToTextList(d, &textprop, &wlist, &count) + < Success + || count < 1) { + XtFree(*value); + return (False); + } + XtFree(*value); + if (XwcTextListToTextProperty(d, wlist, 1, XStringStyle, &textprop) + < Success) { + XwcFreeStringList((wchar_t**)wlist); + return (False); + } + *value = (XtPointer)textprop.value; + *length = textprop.nitems; + XwcFreeStringList((wchar_t**) wlist); + } + else if (*type == XA_UTF8_STRING(d)) { + XTextProperty textprop; + char **list; + int count; + + textprop.encoding = XA_COMPOUND_TEXT(d); + textprop.value = (unsigned char *)*value; + textprop.nitems = strlen(*value); + textprop.format = 8; + if (Xutf8TextPropertyToTextList(d, &textprop, &list, &count) + < Success + || count < 1) { + XtFree(*value); + return (False); + } + XtFree(*value); + *value = *list; + *length = strlen(*list); + XFree(list); + } + } + *format = 8; + return (True); + } + + if (*target == XA_LIST_LENGTH(d) || *target == XA_LENGTH(d)) { + long *temp; + + temp = (long *)XtMalloc(sizeof(long)); + if (*target == XA_LIST_LENGTH(d)) + *temp = 1L; + else /* *target == XA_LENGTH(d) */ + *temp = (long)(s->right - s->left); + + *value = (XPointer)temp; + *type = XA_INTEGER; + *length = 1L; + *format = 32; + return (True); + } + + if (*target == XA_CHARACTER_POSITION(d)) { + long *temp; + + temp = (long *) XtMalloc(2 * sizeof(long)); + temp[0] = (long)(s->left + 1); + temp[1] = s->right; + *value = (XPointer)temp; + *type = XA_SPAN(d); + *length = 2L; + *format = 32; + return (True); + } + + if (*target == XA_DELETE(d)) { + if (!salt) + _XawTextZapSelection(ctx, NULL, True); + *value = NULL; + *type = XA_NULL(d); + *length = 0; + *format = 32; + return (True); + } + + if (XmuConvertStandardSelection(w, ctx->text.time, selection, target, type, + (XPointer *)value, length, format)) + return (True); + + return (False); +} + +static void +LoseSelection(Widget w, Atom *selection) +{ + _LoseSelection(w, selection, NULL, NULL); +} + +static void +_LoseSelection(Widget w, Atom *selection, char **contents, int *length) +{ + TextWidget ctx = (TextWidget)w; + Atom *atomP; + int i; + XawTextSelectionSalt *salt, *prevSalt, *nextSalt; + + prevSalt = 0; + for (salt = ctx->text.salt2; salt; salt = nextSalt) { + atomP = salt->s.selections; + nextSalt = salt->next; + for (i = 0 ; i < salt->s.atom_count; i++, atomP++) + if (*selection == *atomP) + *atomP = (Atom)0; + + while (salt->s.atom_count + && salt->s.selections[salt->s.atom_count-1] == 0) + salt->s.atom_count--; + + /* + * Must walk the selection list in opposite order from UnsetSelection. + */ + atomP = salt->s.selections; + for (i = 0 ; i < salt->s.atom_count; i++, atomP++) + if (*atomP == (Atom)0) { + *atomP = salt->s.selections[--salt->s.atom_count]; + + while (salt->s.atom_count + && salt->s.selections[salt->s.atom_count-1] == 0) + salt->s.atom_count--; + } + if (salt->s.atom_count == 0) { +#ifndef OLDXAW + if (contents == NULL) { + XawTextKillRing *kill_ring = XtNew(XawTextKillRing); + + kill_ring->next = xaw_text_kill_ring; + kill_ring->contents = salt->contents; + kill_ring->length = salt->length; + kill_ring->format = XawFmt8Bit; + xaw_text_kill_ring = kill_ring; + kill_ring_prev.next = xaw_text_kill_ring; + + if (++num_kill_rings > MAX_KILL_RINGS) { + XawTextKillRing *tail = NULL; + + while (kill_ring->next) { + tail = kill_ring; + kill_ring = kill_ring->next; + } + if (kill_ring->refcount == 0) { + --num_kill_rings; + tail->next = NULL; + XtFree(kill_ring->contents); + XtFree((char*)kill_ring); + } + } + } + else { + *contents = salt->contents; + *length = salt->length; + } +#endif + if (prevSalt) + prevSalt->next = nextSalt; + else + ctx->text.salt2 = nextSalt; + + XtFree((char *)salt->s.selections); + XtFree((char *)salt); + } + else + prevSalt = salt; + } +} + +static void +_DeleteOrKill(TextWidget ctx, XawTextPosition from, XawTextPosition to, + Bool kill) +{ + XawTextBlock text; + +#ifndef OLDXAW + if (ctx->text.kill_ring_ptr) { + --ctx->text.kill_ring_ptr->refcount; + ctx->text.kill_ring_ptr = NULL; + } +#endif + if (kill && from < to) { +#ifndef OLDXAW + Bool append = False; + char *ring = NULL; + XawTextPosition old_from = from; +#endif + char *string; + int size = 0, length; + XawTextSelectionSalt *salt; + Atom selection = XInternAtom(XtDisplay(ctx), "SECONDARY", False); + +#ifndef OLDXAW + if (ctx->text.kill_ring == KILL_RING_APPEND) { + old_from = ctx->text.salt2->s.left; + append = True; + } + else + ctx->text.kill_ring = KILL_RING_BEGIN; + + if (append) + _LoseSelection((Widget)ctx, &selection, &ring, &size); + else +#endif + LoseSelection((Widget)ctx, &selection); + + salt = (XawTextSelectionSalt*)XtMalloc(sizeof(XawTextSelectionSalt)); + salt->s.selections = (Atom *)XtMalloc(sizeof(Atom)); + salt->s.left = from; + salt->s.right = to; + + string = (char *)_XawTextGetSTRING(ctx, from, to); + + if (XawTextFormat(ctx, XawFmtWide)) { + XTextProperty textprop; + + if (XwcTextListToTextProperty(XtDisplay((Widget)ctx), + (wchar_t**)(&string), + 1, XCompoundTextStyle, + &textprop) < Success) { + XtFree(string); + XtFree((char*)salt->s.selections); + XtFree((char*)salt); + return; + } + XtFree(string); + string = (char *)textprop.value; + length = textprop.nitems; + } + else + length = strlen(string); + + salt->length = length + size; + +#ifndef OLDXAW + if (!append) + salt->contents = string; + else { + salt->contents = XtMalloc(length + size + 1); + if (from >= old_from) { + strncpy(salt->contents, ring, size); + salt->contents[size] = '\0'; + strncat(salt->contents, string, length); + } + else { + strncpy(salt->contents, string, length); + salt->contents[length] = '\0'; + strncat(salt->contents, ring, size); + } + salt->contents[length + size] = '\0'; + XtFree(ring); + XtFree(string); + } + + kill_ring_prev.contents = salt->contents; + kill_ring_prev.length = salt->length; + kill_ring_prev.format = XawFmt8Bit; +#else + salt->contents = string; +#endif + + salt->next = ctx->text.salt2; + ctx->text.salt2 = salt; + +#ifndef OLDXAW + if (append) + ctx->text.kill_ring = KILL_RING_BEGIN; +#endif + + salt->s.selections[0] = selection; + + XtOwnSelection((Widget)ctx, selection, ctx->text.time, + ConvertSelection, LoseSelection, NULL); + salt->s.atom_count = 1; + } + text.length = 0; + text.firstPos = 0; + + text.format = _XawTextFormat(ctx); + text.ptr = ""; + + if (_XawTextReplace(ctx, from, to, &text)) { + XBell(XtDisplay(ctx), 50); + return; + } + ctx->text.from_left = -1; + ctx->text.insertPos = from; + ctx->text.showposition = TRUE; +} + +static void +DeleteOrKill(TextWidget ctx, XEvent *event, XawTextScanDirection dir, + XawTextScanType type, Bool include, Bool kill) +{ + XawTextPosition from, to; + short mult = MULT(ctx); + + if (mult < 0) { + mult = -mult; + dir = dir == XawsdLeft ? XawsdRight : XawsdLeft; + } + + StartAction(ctx, event); +#ifndef OLDXAW + if (mult == 1) + _XawSourceSetUndoMerge((TextSrcObject)ctx->text.source, True); +#endif + to = SrcScan(ctx->text.source, ctx->text.insertPos, + type, dir, mult, include); + + /* + * If no movement actually happened, then bump the count and try again. + * This causes the character position at the very beginning and end of + * a boundary to act correctly + */ + if (to == ctx->text.insertPos) + to = SrcScan(ctx->text.source, ctx->text.insertPos, + type, dir, mult + 1, include); + + if (dir == XawsdLeft) { + from = to; + to = ctx->text.insertPos; + } + else + from = ctx->text.insertPos; + + _DeleteOrKill(ctx, from, to, kill); + EndAction(ctx); +} + +static void +Delete(Widget w, XEvent *event, String *p, Cardinal *n) +{ + TextWidget ctx = (TextWidget)w; + + if (ctx->text.s.left != ctx->text.s.right) + DeleteCurrentSelection(w, event, p, n); + else + DeleteBackwardChar(w, event, p, n); +} + +static void +DeleteChar(Widget w, XEvent *event, XawTextScanDirection dir) +{ + TextWidget ctx = (TextWidget)w; + short mul = MULT(ctx); + + if (mul < 0) { + ctx->text.mult = mul = -mul; + dir = dir == XawsdLeft ? XawsdRight : XawsdLeft; + } + DeleteOrKill(ctx, event, dir, XawstPositions, True, False); +#ifndef OLDXAW + if (mul == 1) + _XawSourceSetUndoErase((TextSrcObject)ctx->text.source, + dir == XawsdLeft ? -1 : 1); +#endif +} + +/*ARGSUSED*/ +static void +DeleteForwardChar(Widget w, XEvent *event, String *p, Cardinal *n) +{ + DeleteChar(w, event, XawsdRight); +} + +/*ARGSUSED*/ +static void +DeleteBackwardChar(Widget w, XEvent *event, String *p, Cardinal *n) +{ + DeleteChar(w, event, XawsdLeft); +} + +static void +DeleteForwardWord(Widget w, XEvent *event, String *params, Cardinal *num_params) +{ + XawTextScanType type; + + if (*num_params && (*params[0] == 'A' || *params[0] == 'a')) + type = XawstAlphaNumeric; + else + type = XawstWhiteSpace; + + DeleteOrKill((TextWidget)w, event, XawsdRight, type, False, False); +} + +static void +DeleteBackwardWord(Widget w, XEvent *event, String *params, Cardinal *num_params) +{ + XawTextScanType type; + + if (*num_params && (*params[0] == 'A' || *params[0] == 'a')) + type = XawstAlphaNumeric; + else + type = XawstWhiteSpace; + + DeleteOrKill((TextWidget)w, event, XawsdLeft, type, False, False); +} + +static void +KillForwardWord(Widget w, XEvent *event, String *params, Cardinal *num_params) +{ + XawTextScanType type; + + if (*num_params && (*params[0] == 'A' || *params[0] == 'a')) + type = XawstAlphaNumeric; + else + type = XawstWhiteSpace; + + DeleteOrKill((TextWidget)w, event, XawsdRight, type, False, True); +} + +static void +KillBackwardWord(Widget w, XEvent *event, String *params, Cardinal *num_params) +{ + XawTextScanType type; + + if (*num_params && (*params[0] == 'A' || *params[0] == 'a')) + type = XawstAlphaNumeric; + else + type = XawstWhiteSpace; + + DeleteOrKill((TextWidget) w, event, XawsdLeft, type, False, True); +} + +/*ARGSUSED*/ +static void +KillToEndOfLine(Widget w, XEvent *event, String *p, Cardinal *n) +{ + TextWidget ctx = (TextWidget)w; + XawTextPosition end_of_line; + XawTextScanDirection dir = XawsdRight; + short mult = MULT(ctx); + + if (mult < 0) { + dir = XawsdLeft; + mult = -mult; + } + + StartAction(ctx, event); + end_of_line = SrcScan(ctx->text.source, ctx->text.insertPos, XawstEOL, + dir, mult, False); + if (end_of_line == ctx->text.insertPos) + end_of_line = SrcScan(ctx->text.source, ctx->text.insertPos, XawstEOL, + dir, mult, True); + + if (dir == XawsdRight) + _DeleteOrKill(ctx, ctx->text.insertPos, end_of_line, True); + else + _DeleteOrKill(ctx, end_of_line, ctx->text.insertPos, True); + EndAction(ctx); +} + +/*ARGSUSED*/ +static void +KillToEndOfParagraph(Widget w, XEvent *event, String *p, Cardinal *n) +{ + DeleteOrKill((TextWidget)w, event, XawsdRight, XawstParagraph, False, True); +} + +void +_XawTextZapSelection(TextWidget ctx, XEvent *event, Bool kill) +{ + StartAction(ctx, event); + _DeleteOrKill(ctx, ctx->text.s.left, ctx->text.s.right, kill); + EndAction(ctx); +} + +/*ARGSUSED*/ +static void +KillCurrentSelection(Widget w, XEvent *event, String *p, Cardinal *n) +{ + _XawTextZapSelection((TextWidget) w, event, True); +} + +#ifndef OLDXAW +/*ARGSUSED*/ +static void +KillRingYank(Widget w, XEvent *event, String *params, Cardinal *num_params) +{ + TextWidget ctx = (TextWidget)w; + XawTextPosition insertPos = ctx->text.insertPos; + Bool first_yank = False; + + if (ctx->text.s.left != ctx->text.s.right) + XawTextUnsetSelection((Widget)ctx); + + StartAction(ctx, event); + + if (ctx->text.kill_ring_ptr == NULL) { + ctx->text.kill_ring_ptr = &kill_ring_prev; + ++ctx->text.kill_ring_ptr->refcount; + ctx->text.s.left = ctx->text.s.right = insertPos; + first_yank = True; + } + if (ctx->text.kill_ring_ptr) { + int mul = MULT(ctx); + XawTextBlock text; + + if (!first_yank) { + if (mul < 0) + mul = 1; + --ctx->text.kill_ring_ptr->refcount; + while (mul--) { + if ((ctx->text.kill_ring_ptr = ctx->text.kill_ring_ptr->next) == NULL) + ctx->text.kill_ring_ptr = &kill_ring_null; + } + ++ctx->text.kill_ring_ptr->refcount; + } + text.firstPos = 0; + text.length = ctx->text.kill_ring_ptr->length; + text.ptr = ctx->text.kill_ring_ptr->contents; + text.format = ctx->text.kill_ring_ptr->format; + + if (_XawTextReplace(ctx, ctx->text.s.left, insertPos, &text) == XawEditDone) { + ctx->text.kill_ring = KILL_RING_YANK; + ctx->text.insertPos = ctx->text.s.left + text.length; + } + } + else + XBell(XtDisplay(w), 0); + + EndAction(ctx); +} +#endif /* OLDXAW */ + +/*ARGSUSED*/ +static void +DeleteCurrentSelection(Widget w, XEvent *event, String *p, Cardinal *n) +{ + _XawTextZapSelection((TextWidget)w, event, False); +} + +#ifndef OLDXAW +#define CHECK_SAVE() \ + if (save && !save->ptr) \ + save->ptr = _XawTextGetText(ctx, save->firstPos, \ + save->firstPos + save->length) +static Bool +StripSpaces(TextWidget ctx, XawTextPosition left, XawTextPosition right, + XawTextPosition *pos, int num_pos, XawTextBlock *save) +{ + Bool done, space; + int i, cpos, count = 0; + XawTextBlock block, text; + XawTextPosition ipos, position = left, tmp = left; + + text.firstPos = 0; + text.format = XawFmt8Bit; + text.ptr = " "; + text.length = 1; + + position = XawTextSourceRead(ctx->text.source, position, + &block, right - left); + done = False; + space = False; + /* convert tabs and returns to spaces */ + while (!done) { + if (XawTextFormat(ctx, XawFmt8Bit)) { + for (i = 0; i < block.length; i++) + if (block.ptr[i] == '\t' || block.ptr[i] == '\n') { + space = True; + break; + } + } + else { + wchar_t *wptr = (wchar_t*)block.ptr; + for (i = 0; i < block.length; i++) + if (wptr[i] == _Xaw_atowc('\t') || wptr[i] == _Xaw_atowc('\n')) { + space = True; + break; + } + } + if (space) { + CHECK_SAVE(); + if (_XawTextReplace(ctx, tmp + i, tmp + i + 1, &text)) + return (False); + space = False; + } + tmp += i; + position = XawTextSourceRead(ctx->text.source, tmp, + &block, right - tmp); + if (block.length == 0 || tmp == position || tmp >= right) + done = True; + } + + text.ptr = ""; + text.length = 0; + position = tmp = left; + position = XawTextSourceRead(ctx->text.source, position, + &block, right - left); + ipos = ctx->text.insertPos; + done = False; + while (!done) { + if (XawTextFormat(ctx, XawFmt8Bit)) { + for (i = 0; i < block.length; i++) + if (block.ptr[i] == ' ') + ++count; + else if (count == 1) + count = 0; + else if (count) + break; + } + else { + wchar_t *wptr = (wchar_t*)block.ptr; + for (i = 0; i < block.length; i++) + if (wptr[i] == _Xaw_atowc(' ')) + ++count; + else if (count == 1) + count = 0; + else if (count) + break; + } + if (--count > 0) { + CHECK_SAVE(); + if (_XawTextReplace(ctx, tmp + i - count, tmp + i, &text)) + return (False); + right -= count; + if (num_pos) { + for (cpos = 0; cpos < num_pos; cpos++) { + if (tmp + i - count < pos[cpos]) { + if (tmp + i < pos[cpos]) + pos[cpos] -= count; + else + pos[cpos] = tmp + i - count; + } + } + } + else { + if (tmp + i - count < ipos) { + if (tmp + i < ipos) + ipos -= count; + else + ipos = tmp + i - count; + } + } + tmp += i - count; + } + else + tmp += i + 1; + count = 0; + position = XawTextSourceRead(ctx->text.source, tmp, + &block, right - tmp); + if (block.length == 0 || tmp == position || tmp >= right) + done = True; + } + if (!num_pos) + ctx->text.insertPos = ipos; + + return (True); +} + +static Bool +Tabify(TextWidget ctx, XawTextPosition left, XawTextPosition right, + XawTextPosition *pos, int num_pos, XawTextBlock *save) +{ + Bool done, zero; + int i, cpos, count = 0, column = 0, offset = 0; + XawTextBlock text, block; + XawTextPosition ipos, position = left, tmp = left; + TextSinkObject sink = (TextSinkObject)ctx->text.sink; + short *char_tabs = sink->text_sink.char_tabs; + int tab_count = sink->text_sink.tab_count; + int tab_index = 0, tab_column = 0, TAB_SIZE = DEFAULT_TAB_SIZE; + + text.firstPos = 0; + text.ptr = "\t"; + text.format = XawFmt8Bit; + text.length = 1; + + position = XawTextSourceRead(ctx->text.source, position, + &block, right - left); + ipos = ctx->text.insertPos; + done = zero = False; + if (tab_count) + TAB_SIZE = *char_tabs; + while (!done) { + if (XawTextFormat(ctx, XawFmt8Bit)) { + for (i = 0; i < block.length; i++) { + ++offset; + ++column; + if (tab_count) { + if (column > tab_column + char_tabs[tab_index]) { + TAB_SIZE = tab_index < tab_count - 1 ? char_tabs[tab_index + 1] - char_tabs[tab_index] : *char_tabs; + if (++tab_index >= tab_count) { + tab_column += char_tabs[tab_count - 1]; + tab_index = 0; + } + } + } + if (block.ptr[i] == ' ') { + if (++count > TAB_SIZE) + count %= TAB_SIZE; + if ((tab_count && column == tab_column + char_tabs[tab_index]) || + (!tab_count && column % TAB_SIZE == 0)) { + if (count % (TAB_SIZE + 1) > 1) + break; + else + count = 0; + } + } + else { + if (block.ptr[i] == '\n') { + zero = True; + break; + } + count = 0; + } + } + } + else { + wchar_t *wptr = (wchar_t*)block.ptr; + for (i = 0; i < block.length; i++) { + ++offset; + ++column; + if (tab_count) { + if (column > tab_column + char_tabs[tab_index]) { + TAB_SIZE = tab_index < tab_count - 1 ? char_tabs[tab_index + 1] - char_tabs[tab_index] : *char_tabs; + if (++tab_index >= tab_count) { + tab_column += char_tabs[tab_count - 1]; + tab_index = 0; + } + } + } + if (wptr[i] == _Xaw_atowc(' ')) { + if (++count > TAB_SIZE) + count %= TAB_SIZE; + if ((tab_count && column == tab_column + char_tabs[tab_index]) || + (!tab_count && column % TAB_SIZE == 0)) { + if (count % (TAB_SIZE + 1) > 1) + break; + else + count = 0; + } + } + else { + if (wptr[i] == _Xaw_atowc('\n')) { + zero = True; + break; + } + count = 0; + } + } + } + count %= TAB_SIZE + 1; + if (!zero && count > 1 && i < block.length) { + CHECK_SAVE(); + if (_XawTextReplace(ctx, tmp + i - count + 1, tmp + i + 1, &text)) + return (False); + right -= count - 1; + offset -= count - 1; + if (num_pos) { + for (cpos = 0; cpos < num_pos; cpos++) { + if (tmp + i - count + 1 < pos[cpos]) { + if (tmp + i + 1 < pos[cpos]) + pos[cpos] -= count; + else + pos[cpos] = tmp + i - count + 1; + ++pos[cpos]; + } + } + } + else { + if (tmp + i - count + 1 < ipos) { + if (tmp + i + 1 < ipos) + ipos -= count; + else + ipos = tmp + i - count + 1; + ++ipos; + } + } + } + if (count) + --count; + if (zero) { + count = column = 0; + zero = False; + if (tab_count) { + tab_column = tab_index = 0; + TAB_SIZE = *char_tabs; + } + } + else if (i < block.length) + count = 0; + tmp = left + offset; + position = XawTextSourceRead(ctx->text.source, tmp, + &block, right - tmp); + if (tmp == position || tmp >= right) + done = True; + } + if (!num_pos) + ctx->text.insertPos = ipos; + + return (True); +} + +static Bool +Untabify(TextWidget ctx, XawTextPosition left, XawTextPosition right, + XawTextPosition *pos, int num_pos, XawTextBlock *save) +{ + Bool done, zero; + int i, cpos, count = 0, diff = 0; + XawTextBlock block, text; + XawTextPosition ipos, position = left, tmp = left; + TextSinkObject sink = (TextSinkObject)ctx->text.sink; + short *char_tabs = sink->text_sink.char_tabs; + int tab_count = sink->text_sink.tab_count; + int tab_index = 0, tab_column = 0, tab_base = 0; + static char *tabs = " "; + + text.firstPos = 0; + text.format = XawFmt8Bit; + text.ptr = tabs; + + position = XawTextSourceRead(ctx->text.source, position, + &block, right - left); + ipos = ctx->text.insertPos; + done = False; + zero = False; + while (!done) { + if (XawTextFormat(ctx, XawFmt8Bit)) + for (i = 0; i < block.length; i++) { + if (block.ptr[i] != '\t') { + ++count; + if (block.ptr[i] == '\n') { + zero = True; + break; + } + } + else + break; + } + else { + wchar_t *wptr = (wchar_t*)block.ptr; + for (i = 0; i < block.length; i++) + if (wptr[i] != _Xaw_atowc('\t')) { + ++count; + if (wptr[i] != _Xaw_atowc('\n')) { + zero = True; + break; + } + } + else + break; + } + if (!zero && i < block.length) { + if (tab_count) { + while (tab_base + tab_column <= count) { + for (; tab_index < tab_count; ++tab_index) + if (tab_base + char_tabs[tab_index] > count) { + tab_column = char_tabs[tab_index]; + break; + } + if (tab_index >= tab_count) { + tab_base += char_tabs[tab_count - 1]; + tab_column = tab_index = 0; + } + } + text.length = (tab_base + tab_column) - count; + if (text.length > 8) { + int j; + + text.ptr = XtMalloc(text.length); + for (j = 0; j < text.length; j++) + text.ptr[j] = ' '; + } + else + text.ptr = tabs; + } + else + text.length = DEFAULT_TAB_SIZE - (count % DEFAULT_TAB_SIZE); + CHECK_SAVE(); + if (_XawTextReplace(ctx, tmp + i, tmp + i + 1, &text)) { + if (tab_count && text.length > 8) + XtFree(text.ptr); + return (False); + } + if (tab_count && text.length > 8) + XtFree(text.ptr); + count += text.length; + right += text.length - 1; + if (num_pos) { + for (cpos = 0; cpos < num_pos; cpos++) { + if (tmp + i < pos[cpos]) { + if (tmp + i + 1 < pos[cpos]) + --pos[cpos]; + else + pos[cpos] = tmp + i; + pos[cpos] += text.length; + } + } + } + else { + if (tmp + i < ipos) { + if (tmp + i + 1 < ipos) + --ipos; + else + ipos = tmp + i; + ipos += text.length; + } + } + } + tmp = left + count + diff; + if (zero) { + diff += count; + count = 0; + zero = False; + if (tab_count) + tab_base = tab_column = tab_index = 0; + } + position = XawTextSourceRead(ctx->text.source, tmp, + &block, right - tmp); + if (tmp == position || tmp >= right) + done = True; + } + if (!num_pos) + ctx->text.insertPos = ipos; + + return (True); +} + +static int +FormatText(TextWidget ctx, XawTextPosition left, Bool force, + XawTextPosition *pos, int num_pos) +{ + char *ptr = NULL; + Bool freepos = False, undo, paragraph = pos != NULL; + int i, result; + XawTextBlock block, *text; + XawTextPosition end = ctx->text.lastPos, buf[32]; + TextSrcObject src = (TextSrcObject)ctx->text.source; + XawTextPosition right = SrcScan(ctx->text.source, left, XawstEOL, + XawsdRight, 1, False); + + undo = src->textSrc.enable_undo && src->textSrc.undo_state == False; + if (undo) { + if (!pos) { + num_pos = src->textSrc.num_text; + pos = XawStackAlloc(sizeof(XawTextPosition) * num_pos, buf); + for (i = 0; i < num_pos; i++) + pos[i] = ((TextWidget)src->textSrc.text[i])->text.insertPos; + freepos = True; + } + else + freepos = False; + src->textSrc.undo_state = True; + block.ptr = NULL; + block.firstPos = left; + block.length = right - left; + text = █ + } + else + text = NULL; + + result = DoFormatText(ctx, left, force, 1, text, pos, num_pos, paragraph); + if (undo && result == XawEditDone && block.ptr) { + char *lbuf, *rbuf; + unsigned llen, rlen, size; + + ptr = lbuf = block.ptr; + llen = block.length; + rlen = llen + (ctx->text.lastPos - end); + + block.firstPos = 0; + block.format = _XawTextFormat(ctx); + + rbuf = _XawTextGetText(ctx, left, left + rlen); + + size = XawTextFormat(ctx, XawFmtWide) ? sizeof(wchar_t) : sizeof(char); + if (llen != rlen || memcmp(lbuf, rbuf, llen * size)) { + block.ptr = lbuf; + block.length = llen; + _XawTextReplace(ctx, left, left + rlen, &block); + + src->textSrc.undo_state = False; + block.ptr = rbuf; + block.length = rlen; + _XawTextReplace(ctx, left, left + llen, &block); + } + else + src->textSrc.undo_state = False; + XtFree(rbuf); + } + if (undo) { + src->textSrc.undo_state = False; + if (freepos) { + for (i = 0; i < num_pos; i++) { + TextWidget tw = (TextWidget)src->textSrc.text[i]; + tw->text.insertPos = XawMin(XawMax(0, pos[i]), tw->text.lastPos); + } + XawStackFree(pos, buf); + } + if (ptr) + XtFree(ptr); + } + + return (result); +} + +static int +DoFormatText(TextWidget ctx, XawTextPosition left, Bool force, int level, + XawTextBlock *save, XawTextPosition *pos, int num_pos, + Bool paragraph) +{ + XawTextPosition right = SrcScan(ctx->text.source, left, XawstEOL, + XawsdRight, 1, False); + XawTextPosition position, tmp, ipos; + XawTextBlock block, text; + char buf[128]; + wchar_t *wptr; + int i, count, cpos; + Bool done, force2 = force, recurse = False; + + position = XawTextSourceRead(ctx->text.source, left, &block, right - left); + if (block.length == 0 || left >= right || + (level == 1 && ((XawTextFormat(ctx, XawFmt8Bit) && + block.ptr[0] != ' ' && + block.ptr[0] != '\t' && + !isalnum(*(unsigned char*)block.ptr)) || + (XawTextFormat(ctx, XawFmtWide) && + _Xaw_atowc(XawSP) != *(wchar_t*)block.ptr && + _Xaw_atowc(XawTAB) != *(wchar_t*)block.ptr && + !iswalnum(*(wchar_t*)block.ptr))))) + return (XawEditDone); + + if (level == 1 && !paragraph) { + tmp = ctx->text.lastPos; + if (Untabify(ctx, left, right, pos, num_pos, save) == False) + return (XawEditError); + right += ctx->text.lastPos - tmp; + position = XawTextSourceRead(ctx->text.source, left, &block, + right - left); + } + + text.firstPos = 0; + text.format = XawFmt8Bit; + + ipos = ctx->text.insertPos; + count = 0; + done = False; + while (!done) { + if (XawTextFormat(ctx, XawFmt8Bit)) { + for (i = 0; i < block.length; i++) + if (block.ptr[i] == ' ') + ++count; + else { + done = True; + break; + } + } + else { + wptr = (wchar_t*)block.ptr; + for (i = 0; i < block.length; i++) + if (wptr[i] == _Xaw_atowc(' ')) + ++count; + else { + done = True; + break; + } + } + tmp = position; + position = XawTextSourceRead(ctx->text.source, position, + &block, right - position); + if (tmp == position) + done = True; + } + position = left + count; + if (count < ctx->text.left_column) { + int bytes = ctx->text.left_column - count; + + text.ptr = XawStackAlloc(bytes, buf); + text.length = bytes; + for (i = 0; i < bytes; i++) + text.ptr[i] = ' '; + CHECK_SAVE(); + if (_XawTextReplace(ctx, left, left, &text)) { + XawStackFree(text.ptr, buf); + return (XawEditError); + } + XawStackFree(text.ptr, buf); + right += bytes; + if (num_pos) { + for (cpos = 0; cpos < num_pos; cpos++) + if (pos[cpos] >= left) + pos[cpos] += bytes; + } + if (ipos >= left) + ipos += bytes; + count += bytes; + } + + done = False; + if (!paragraph && level == 1 + && ipos <= right && ipos - left > ctx->text.right_column) { + XawTextPosition len = ctx->text.lastPos; + int skip = ctx->text.justify == XawjustifyRight + || ctx->text.justify == XawjustifyCenter ? + ctx->text.left_column : count; + + if (pos) + for (i = 0; i < num_pos; i++) + if (pos[i] == ipos) + break; + + StripSpaces(ctx, left + skip, right, pos, num_pos, save); + right += ctx->text.lastPos - len; + if (pos && i < num_pos) + ipos = pos[i]; + else + ipos = ctx->text.insertPos; + done = ipos - left > ctx->text.right_column; + count = skip + (count == skip + 1); + } + if ((paragraph || done) && right - left > ctx->text.right_column) { + position = tmp = right; + XawTextSourceRead(ctx->text.source, position - 1, &block, 1); + if (block.length && + ((XawTextFormat(ctx, XawFmt8Bit) && + block.ptr[0] == ' ') || + (XawTextFormat(ctx, XawFmtWide) && + _Xaw_atowc(XawSP) == *(wchar_t*)block.ptr))) + --position; + while (position - left > ctx->text.right_column) { + tmp = position; + position = SrcScan(ctx->text.source, position, + XawstWhiteSpace, XawsdLeft, 1, True); + } + if (position <= left + ctx->text.left_column) + position = tmp; + if (position > left && position - left > ctx->text.left_column + && position != right) { + text.ptr = "\n"; + text.length = 1; + CHECK_SAVE(); + if (_XawTextReplace(ctx, position, position + 1, &text)) + return (XawEditError); + right = position; + recurse = True; + force = True; + } + } + + if (force) { + if (ctx->text.justify == XawjustifyCenter) + count = ctx->text.right_column - (count - ctx->text.left_column); + else + count = ctx->text.right_column; + if (count > right - left) + count -= right - left; + else + count = 0; + } + else + count = 0; + if (count > 0) { + switch (ctx->text.justify) { + case XawjustifyLeft: + break; + case XawjustifyRight: + case XawjustifyCenter: + if (ctx->text.justify == XawjustifyCenter) { + int alnum = 0; + + if (!(count & 1)) { + XawTextSourceRead(ctx->text.source, right, &block, 1); + if ((XawTextFormat(ctx, XawFmt8Bit) + && isalnum(*(unsigned char*)block.ptr)) || + (XawTextFormat(ctx, XawFmtWide) + && iswalnum(*(wchar_t*)block.ptr))) + alnum = 1; + } + count = (count + alnum) >> 1; + } + text.ptr = XawStackAlloc(count, buf); + text.length = count; + for (i = 0; i < count; i++) + text.ptr[i] = ' '; + CHECK_SAVE(); + if (_XawTextReplace(ctx, left, left, &text)) { + XawStackFree(text.ptr, buf); + return (XawEditError); + } + XawStackFree(text.ptr, buf); + position += count; + right += count; + if (num_pos) { + for (cpos = 0; cpos < num_pos; cpos++) + if (pos[cpos] > left) + pos[cpos] += count; + } + else if (ipos > left) + ipos += count; + break; + case XawjustifyFull: + i = 0; + tmp = left; + /*CONSTCOND*/ + while (True) { + tmp = SrcScan(ctx->text.source, tmp, XawstWhiteSpace, + XawsdRight, 1, True); + if (tmp < right) + ++i; + else + break; + } + if (i) { + double inc, ii; + int bytes, steps; + + bytes = count; + inc = ii = (count + .5) / (double)i; + + steps = count; + text.ptr = XawStackAlloc(steps, buf); + for (i = 0; i < steps; i++) + text.ptr[i] = ' '; + tmp = left; + CHECK_SAVE(); + while (bytes) { + steps = 1; + while (inc + ii < 1) { + ++steps; + inc += ii; + } + tmp = SrcScan(ctx->text.source, tmp, XawstWhiteSpace, + XawsdRight, steps, True); + if (bytes > inc) + text.length = (int)inc; + else + text.length = bytes; + bytes -= text.length; + if (_XawTextReplace(ctx, tmp, tmp, &text)) { + XawStackFree(buf, text.ptr); + return (XawEditError); + } + if (num_pos) { + for (cpos = 0; cpos < num_pos; cpos++) + if (tmp <= pos[cpos]) + pos[cpos] += text.length; + } + else if (tmp <= ipos) + ipos += text.length; + inc -= (int)inc; + inc += ii; + } + position += count; + right += count; + XawStackFree(buf, text.ptr); + } + break; + } + } + + if (!num_pos) + ctx->text.insertPos = XawMin(ipos, ctx->text.lastPos); + + return (recurse ? DoFormatText(ctx, position + 1, + ctx->text.justify != XawjustifyFull + && (force2 || paragraph), + ++level, save, pos, num_pos, paragraph) + : XawEditDone); +} +#undef CHECK_SAVE + +/*ARGSUSED*/ +static void +Indent(Widget w, XEvent *event, String *params, Cardinal *num_params) +{ + TextWidget ctx = (TextWidget)w; + TextSrcObject src = (TextSrcObject)ctx->text.source; + XawTextPosition from, to, tmp, end = 0, *pos, *posbuf[32]; + char buf[32]; + XawTextBlock text; + int i, spaces = MULT(ctx); + char *lbuf = NULL, *rbuf; + unsigned llen = 0, rlen, size; + Bool undo = src->textSrc.enable_undo && src->textSrc.undo_state == False; + Bool format = ctx->text.auto_fill + && ctx->text.left_column < ctx->text.right_column; + + text.firstPos = 0; + text.format = XawFmt8Bit; + text.ptr = ""; + + StartAction(ctx, event); + + pos = XawStackAlloc(sizeof(XawTextPosition) * src->textSrc.num_text, posbuf); + for (i = 0; i < src->textSrc.num_text; i++) + pos[i] = ((TextWidget)src->textSrc.text[i])->text.insertPos; + + if (!GetBlockBoundaries(ctx, &from, &to)) { + EndAction(ctx); + XawStackFree(pos, posbuf); + return; + } + + if (undo) { + llen = to - from; + end = ctx->text.lastPos; + lbuf = _XawTextGetText(ctx, from, to); + src->textSrc.undo_state = True; + } + + tmp = ctx->text.lastPos; + if (!Untabify(ctx, from, to, pos, src->textSrc.num_text, NULL)) { + XBell(XtDisplay(ctx), 0); + EndAction(ctx); + XawStackFree(pos, posbuf); + if (undo) { + src->textSrc.undo_state = True; + XtFree(lbuf); + } + return; + } + to += ctx->text.lastPos - tmp; + + tmp = from; + + if (spaces > 0) { + text.ptr = XawStackAlloc(spaces, buf); + for (i = 0; i < spaces; i++) + text.ptr[i] = ' '; + + text.length = spaces; + while (tmp < to) { + _XawTextReplace(ctx, tmp, tmp, &text); + + for (i = 0; i < src->textSrc.num_text; i++) + if (tmp < pos[i]) + pos[i] += spaces; + + to += spaces; + tmp = SrcScan(ctx->text.source, tmp, XawstEOL, XawsdRight, 1, True); + } + XawStackFree(text.ptr, buf); + } + else { + int min = 32767; + + text.length = 0; + tmp = from; + + /* find the amount of spaces to cut */ + while (tmp < to) { + (void)BlankLine(w, tmp, &i); + if (i < min) + min = i; + tmp = SrcScan(ctx->text.source, tmp, XawstEOL, XawsdRight, 1, True); + } + spaces = XawMin(-spaces, min); + + /* cut the spaces */ + tmp = from; + while (tmp < to) { + _XawTextReplace(ctx, tmp, tmp + spaces, &text); + + for (i = 0; i < src->textSrc.num_text; i++) + if (tmp < pos[i]) { + if (tmp + spaces < pos[i]) + pos[i] -= spaces; + else + pos[i] = tmp; + } + + to -= spaces; + tmp = SrcScan(ctx->text.source, tmp, XawstEOL, XawsdRight, 1, True); + } + } + + if (!format) + Tabify(ctx, from, to, pos, src->textSrc.num_text, NULL); + + if (undo) { + rlen = llen + (ctx->text.lastPos - end); + rbuf = _XawTextGetText(ctx, from, from + rlen); + + text.format = _XawTextFormat(ctx); + size = XawTextFormat(ctx, XawFmtWide) ? sizeof(wchar_t) : sizeof(char); + if (llen != rlen || memcmp(lbuf, rbuf, llen * size)) { + text.ptr = lbuf; + text.length = llen; + _XawTextReplace(ctx, from, from + rlen, &text); + + src->textSrc.undo_state = False; + text.ptr = rbuf; + text.length = rlen; + _XawTextReplace(ctx, from, from + llen, &text); + } + else + src->textSrc.undo_state = False; + XtFree(lbuf); + XtFree(rbuf); + } + + for (i = 0; i < src->textSrc.num_text; i++) { + TextWidget tw = (TextWidget)src->textSrc.text[i]; + + tw->text.insertPos = XawMin(XawMax(0, pos[i]), tw->text.lastPos); + } + XawStackFree(pos, posbuf); + ctx->text.showposition = True; + + EndAction(ctx); +} + +/*ARGSUSED*/ +static void +ToggleOverwrite(Widget w, XEvent *event, String *params, Cardinal *num_params) +{ + TextWidget ctx = (TextWidget)w; + + ctx->text.overwrite = !ctx->text.overwrite; + + /* call information callback */ + _XawTextSetLineAndColumnNumber(ctx, True); +} +#endif /* OLDXAW */ + +/* + * Insertion Routines + */ +static int +InsertNewLineAndBackupInternal(TextWidget ctx) +{ + int count, error = XawEditDone, mult = MULT(ctx); +#ifndef OLDXAW + XawTextPosition position; +#endif + XawTextBlock text; + char buf[32]; + + if (mult < 0) { + ctx->text.mult = 1; + return (XawEditError); + } + + text.format = _XawTextFormat(ctx); + text.length = mult; + text.firstPos = 0; + + if (text.format == XawFmtWide) { + wchar_t *wptr; + + text.ptr = XawStackAlloc(sizeof(wchar_t) * mult, buf); + wptr = (wchar_t *)text.ptr; + for (count = 0; count < mult; count++) + wptr[count] = _Xaw_atowc(XawLF); + } + else { + text.ptr = XawStackAlloc(sizeof(char) * mult, buf); + for (count = 0; count < mult; count++) + text.ptr[count] = XawLF; + } + +#ifndef OLDXAW + position = SrcScan(ctx->text.source, ctx->text.insertPos, + XawstEOL, XawsdLeft, 1, False); +#endif + if (_XawTextReplace(ctx, ctx->text.insertPos, ctx->text.insertPos, &text)) { + XBell( XtDisplay(ctx), 50); + error = XawEditError; + } + else { + ctx->text.showposition = TRUE; + ctx->text.insertPos += text.length; + } + + XawStackFree(text.ptr, buf); + +#ifndef OLDXAW + if (ctx->text.auto_fill && error == XawEditDone) + (void)FormatText(ctx, position, ctx->text.justify != XawjustifyFull, + NULL, 0); +#endif + + return (error); +} + +/*ARGSUSED*/ +static void +InsertNewLineAndBackup(Widget w, XEvent *event, String *p, Cardinal *n) +{ + TextWidget ctx = (TextWidget)w; + XawTextPosition insertPos = ctx->text.insertPos; + + StartAction((TextWidget)w, event); + (void)InsertNewLineAndBackupInternal(ctx); + ctx->text.insertPos = SrcScan(ctx->text.source, insertPos, XawstEOL, + XawsdRight, 1, False); + EndAction((TextWidget)w); +} + +static int +LocalInsertNewLine(TextWidget ctx, XEvent *event) +{ + int error; + + StartAction(ctx, event); + error = InsertNewLineAndBackupInternal(ctx); + ctx->text.from_left = -1; + EndAction(ctx); + + return (error); +} + +/*ARGSUSED*/ +static void +InsertNewLine(Widget w, XEvent *event, String *p, Cardinal *n) +{ + (void)LocalInsertNewLine((TextWidget)w, event); +} + +/*ARGSUSED*/ +static void +InsertNewLineAndIndent(Widget w, XEvent *event, String *p, Cardinal *n) +{ + XawTextBlock text; + XawTextPosition pos1; + int length; + TextWidget ctx = (TextWidget)w; + String line_to_ip; + + StartAction(ctx, event); + pos1 = SrcScan(ctx->text.source, ctx->text.insertPos, + XawstEOL, XawsdLeft, 1, False); + + line_to_ip = _XawTextGetText(ctx, pos1, ctx->text.insertPos); + + text.format = _XawTextFormat(ctx); + text.firstPos = 0; + + if (text.format == XawFmtWide) { + wchar_t *ptr; + + text.ptr = XtMalloc((2 + wcslen((wchar_t*)line_to_ip)) + * sizeof(wchar_t)); + ptr = (wchar_t*)text.ptr; + ptr[0] = _Xaw_atowc(XawLF); + wcscpy((wchar_t*)++ptr, (wchar_t*)line_to_ip); + + length = wcslen((wchar_t*)text.ptr); + while (length && (iswspace(*ptr) || *ptr == _Xaw_atowc(XawTAB))) + ptr++, length--; + *ptr = (wchar_t)0; + text.length = wcslen((wchar_t*)text.ptr); + } + else { + char *ptr; + + length = strlen(line_to_ip); + text.ptr = XtMalloc((2 + length) * sizeof(char)); + ptr = text.ptr; + ptr[0] = XawLF; + strcpy(++ptr, line_to_ip); + + length++; + while (length && (isspace(*ptr) || (*ptr == XawTAB))) + ptr++, length--; + *ptr = '\0'; + text.length = strlen(text.ptr); + } + XtFree(line_to_ip); + + if (_XawTextReplace(ctx,ctx->text.insertPos, ctx->text.insertPos, &text)) { + XBell(XtDisplay(ctx), 50); + XtFree(text.ptr); + EndAction(ctx); + return; + } + + XtFree(text.ptr); + ctx->text.from_left = -1; + ctx->text.insertPos = SrcScan(ctx->text.source, ctx->text.old_insert, + XawstPositions, XawsdRight, text.length, True); + EndAction(ctx); +} + +/* + * Selection Routines + */ +static void +SelectWord(Widget w, XEvent *event, String *params, Cardinal *num_params) +{ + TextWidget ctx = (TextWidget)w; + XawTextPosition l, r; + + StartAction(ctx, event); + l = SrcScan(ctx->text.source, ctx->text.insertPos, + XawstWhiteSpace, XawsdLeft, 1, False); + r = SrcScan(ctx->text.source, l, XawstWhiteSpace, XawsdRight, 1, False); + _XawTextSetSelection(ctx, l, r, params, *num_params); + EndAction(ctx); +} + +static void +SelectAll(Widget w, XEvent *event, String *params, Cardinal *num_params) +{ + TextWidget ctx = (TextWidget)w; + + StartAction(ctx, event); + _XawTextSetSelection(ctx,zeroPosition,ctx->text.lastPos,params,*num_params); + EndAction(ctx); +} + +static void +ModifySelection(TextWidget ctx, XEvent *event, + XawTextSelectionMode mode, + XawTextSelectionAction action, + String *params, Cardinal *num_params) +{ +#ifndef OLDXAW + int old_y = ctx->text.ev_y; +#endif + + StartAction(ctx, event); + NotePosition(ctx, event); + +#ifndef OLDXAW + if (event->type == MotionNotify) { + if (ctx->text.ev_y <= ctx->text.margin.top) { + if (old_y >= ctx->text.ev_y) + XawTextScroll(ctx, -1, 0); + } + else if (ctx->text.ev_y >= XtHeight(ctx) - ctx->text.margin.bottom) { + if (old_y <= ctx->text.ev_y + && !IsPositionVisible(ctx, ctx->text.lastPos)) + XawTextScroll(ctx, 1, 0); + } + } +#endif + ctx->text.from_left = -1; + _XawTextAlterSelection(ctx, mode, action, params, num_params); + + EndAction(ctx); +} + +static void +SelectStart(Widget w, XEvent *event, String *params, Cardinal *num_params) +{ + TextWidget ctx = (TextWidget)w; + +#ifndef OLDXAW + if (!ctx->text.selection_state) { + ctx->text.selection_state = True; +#endif + ModifySelection(ctx, event, + XawsmTextSelect, XawactionStart, params, num_params); +#ifndef OLDXAW + } +#endif +} + +static void +SelectAdjust(Widget w, XEvent *event, String *params, Cardinal *num_params) +{ + TextWidget ctx = (TextWidget)w; + +#ifndef OLDXAW + if (ctx->text.selection_state) +#endif + ModifySelection(ctx, event, + XawsmTextSelect, XawactionAdjust, params, num_params); +} + +static void +SelectEnd(Widget w, XEvent *event, String *params, Cardinal *num_params) +{ + TextWidget ctx = (TextWidget)w; + +#ifndef OLDXAW + if (ctx->text.selection_state) { + ctx->text.selection_state = False; +#endif + ModifySelection(ctx, event, + XawsmTextSelect, XawactionEnd, params, num_params); +#ifndef OLDXAW + } +#endif +} + +static void +ExtendStart(Widget w, XEvent *event, String *params, Cardinal *num_params) +{ + TextWidget ctx = (TextWidget)w; + +#ifndef OLDXAW + if (!ctx->text.selection_state) { + ctx->text.selection_state = True; +#endif + ModifySelection(ctx, event, + XawsmTextExtend, XawactionStart, params, num_params); +#ifndef OLDXAW + } +#endif +} + +static void +ExtendAdjust(Widget w, XEvent *event, String *params, Cardinal *num_params) +{ + TextWidget ctx = (TextWidget)w; + +#ifndef OLDXAW + if (ctx->text.selection_state) +#endif + ModifySelection(ctx, event, + XawsmTextExtend, XawactionAdjust, params, num_params); +} + +static void +ExtendEnd(Widget w, XEvent *event, String *params, Cardinal *num_params) +{ + TextWidget ctx = (TextWidget)w; + +#ifndef OLDXAW + if (ctx->text.selection_state) { + ctx->text.selection_state = False; +#endif + ModifySelection(ctx, event, + XawsmTextExtend, XawactionEnd, params, num_params); +#ifndef OLDXAW + } +#endif +} + +static void +SelectSave(Widget w, XEvent *event, String *params, Cardinal *num_params) +{ + int num_atoms; + Atom *sel; + Display *dpy = XtDisplay(w); + Atom selections[256]; + + StartAction((TextWidget)w, event); + num_atoms = *num_params; + if (num_atoms > 256) + num_atoms = 256; + for (sel=selections; --num_atoms >= 0; sel++, params++) + *sel = XInternAtom(dpy, *params, False); + num_atoms = *num_params; + _XawTextSaltAwaySelection((TextWidget)w, selections, num_atoms); + EndAction((TextWidget)w); +} + +/* + * Misc. Routines + */ +/*ARGSUSED*/ +static void +SetKeyboardFocus(Widget w, XEvent *event, String *params, Cardinal *num_params) +{ + Widget shell, parent; + + shell = parent = w; + while (parent) { + if (XtIsShell(shell = parent)) + break; + parent = XtParent(parent); + } + XtSetKeyboardFocus(shell, w); +} + +/*ARGSUSED*/ +static void +RedrawDisplay(Widget w, XEvent *event, String *p, Cardinal *n) +{ + StartAction((TextWidget)w, event); + _XawTextClearAndCenterDisplay((TextWidget)w); + EndAction((TextWidget)w); +} + +/* This is kind of a hack, but, only one text widget can have focus at + * a time on one display. There is a problem in the implementation of the + * text widget, the scrollbars can not be adressed via editres, since they + * are not children of a subclass of composite. + * The focus variable is required to make sure only one text window will + * show a block cursor at one time. + */ +struct _focus { Display *display; Widget widget; }; +static struct _focus *focus; +static Cardinal num_focus; + +/*ARGSUSED*/ +static void +DestroyFocusCallback(Widget w, XtPointer user_data, XtPointer call_data) +{ + struct _focus *f = (struct _focus*)(user_data); + + if (f->widget == w) + f->widget = NULL; +} + +/*ARGSUSED*/ +static void +TextFocusIn(Widget w, XEvent *event, String *p, Cardinal *n) +{ + TextWidget ctx = (TextWidget)w; + Bool display_caret = ctx->text.display_caret; + int i; + + if (event->xfocus.detail == NotifyPointer) + return; + + if (event->xfocus.send_event) { + Window root, child; + int rootx, rooty, x, y; + unsigned int mask; + + if (ctx->text.hasfocus) + return; + + if (XQueryPointer(XtDisplay(w), XtWindow(w), &root, &child, + &rootx, &rooty, &x, &y, &mask)) { + if (child) + return; + } + } + + /* Let the input method know focus has arrived. */ + _XawImSetFocusValues(w, NULL, 0); + + if (display_caret) + StartAction(ctx, event); + ctx->text.hasfocus = TRUE; + if (display_caret) + EndAction(ctx); + + for (i = 0; i < num_focus; i++) + if (focus[i].display == XtDisplay(w)) + break; + if (i >= num_focus) { + focus = (struct _focus*) + XtRealloc((XtPointer)focus, sizeof(struct _focus) * (num_focus + 1)); + i = num_focus; + focus[i].widget = NULL; + focus[i].display = XtDisplay(w); + num_focus++; + } + if (focus[i].widget != w) { + Widget old = focus[i].widget; + + focus[i].widget = w; + if (old != NULL) { + TextFocusOut(old, event, p, n); + /* TextFocusOut may set it to NULL */ + focus[i].widget = w; + } + XtAddCallback(w, XtNdestroyCallback, + DestroyFocusCallback, (XtPointer)&focus[i]); + } +} + +/*ARGSUSED*/ +static void +TextFocusOut(Widget w, XEvent *event, String *p, Cardinal *n) +{ + TextWidget ctx = (TextWidget)w; + Bool display_caret = ctx->text.display_caret; + Widget shell; + Window window; + int i, revert; + + shell = w; + while (shell) { + if (XtIsShell(shell)) + break; + shell = XtParent(shell); + } + + for (i = 0; i < num_focus; i++) + if (focus[i].display == XtDisplay(w)) + break; + XGetInputFocus(XtDisplay(w), &window, &revert); + if ((XtWindow(shell) == window && + (i < num_focus && focus[i].widget == w)) + || event->xfocus.detail == NotifyPointer) + return; + + if (i < num_focus && focus[i].widget) { + XtRemoveCallback(focus[i].widget, XtNdestroyCallback, + DestroyFocusCallback, (XtPointer)&focus[i]); + focus[i].widget = NULL; + } + + /* Let the input method know focus has left.*/ + _XawImUnsetFocus(w); + + if (display_caret) + StartAction(ctx, event); + ctx->text.hasfocus = FALSE; + if (display_caret) + EndAction(ctx); +} + +/*ARGSUSED*/ +static void +TextEnterWindow(Widget w, XEvent *event, String *params, Cardinal *num_params) +{ + TextWidget ctx = (TextWidget)w; + + if ((event->xcrossing.detail != NotifyInferior) && event->xcrossing.focus + && !ctx->text.hasfocus) + _XawImSetFocusValues(w, NULL, 0); +} + +/*ARGSUSED*/ +static void +TextLeaveWindow(Widget w, XEvent *event, String *params, Cardinal *num_params) +{ + TextWidget ctx = (TextWidget)w; + + if ((event->xcrossing.detail != NotifyInferior) && event->xcrossing.focus + && !ctx->text.hasfocus) + _XawImUnsetFocus(w); +} + +/* + * Function: + * AutoFill + * Arguments: ctx - The text widget. + * + * Description: + * Breaks the line at the previous word boundry when + * called inside InsertChar. + */ +static void +AutoFill(TextWidget ctx) +{ + int width, height, x, line_num, max_width; + XawTextPosition ret_pos; + XawTextBlock text; + XRectangle cursor; + wchar_t wc_buf[2]; + + for (line_num = 0; line_num < ctx->text.lt.lines ; line_num++) + if (ctx->text.lt.info[line_num].position >= ctx->text.insertPos) + break; + if (line_num) + line_num--; /* backup a line. */ + + XawTextSinkGetCursorBounds(ctx->text.sink, &cursor); + max_width = Max(0, (int)XtWidth(ctx) - RHMargins(ctx) - cursor.width); + + x = ctx->text.r_margin.left; + XawTextSinkFindPosition(ctx->text.sink, ctx->text.lt.info[line_num].position, + x, max_width, True, &ret_pos, + &width, &height); + + if (ret_pos <= ctx->text.lt.info[line_num].position + || ret_pos >= ctx->text.insertPos || ret_pos < 1) + return; + + XawTextSourceRead(ctx->text.source, ret_pos - 1, &text, 1); + + if (XawTextFormat(ctx, XawFmtWide)) { + wc_buf[0] = *(wchar_t *)text.ptr; + if (wc_buf[0] != _Xaw_atowc(XawSP) && wc_buf[0] != _Xaw_atowc(XawTAB)) + /* Only eats white spaces */ + return; + + text.format = XawFmtWide; + text.ptr = (char *)wc_buf; + wc_buf[0] = _Xaw_atowc(XawLF); + wc_buf[1] = 0; + } + else { + if (text.ptr[0] != XawSP && text.ptr[0] != XawTAB) + /* Only eats white spaces */ + return; + + text.format = XawFmt8Bit; + text.ptr = "\n"; + } + text.length = 1; + text.firstPos = 0; + + if (_XawTextReplace(ctx, ret_pos - 1, ret_pos, &text)) + XBell(XtDisplay((Widget)ctx), 0); + + if (++ctx->text.insertPos > ctx->text.lastPos) + ctx->text.insertPos = ctx->text.lastPos; +} + +/*ARGSUSED*/ +static void +InsertChar(Widget w, XEvent *event, String *p, Cardinal *n) +{ + TextWidget ctx = (TextWidget)w; + char *ptr, strbuf[128], ptrbuf[512]; + int count, error, mult = MULT(ctx); + KeySym keysym; + XawTextBlock text; +#ifndef OLDXAW + Bool format = False; +#endif + XawTextPosition from, to; + + if (XtIsSubclass (ctx->text.source, (WidgetClass) multiSrcObjectClass)) + text.length = _XawImWcLookupString(w, &event->xkey, (wchar_t*)strbuf, + sizeof(strbuf), &keysym); + else + text.length = _XawLookupString(w, (XKeyEvent*)event, strbuf, + sizeof(strbuf), &keysym); + + if (text.length == 0) + return; + + if (mult < 0) { + ctx->text.mult = 1; + return; + } + + text.format = _XawTextFormat(ctx); + if (text.format == XawFmtWide) { + text.ptr = ptr = XawStackAlloc(sizeof(wchar_t) * text.length + * mult, ptrbuf); + for (count = 0; count < mult; count++) { + memcpy((char*)ptr, (char *)strbuf, sizeof(wchar_t) * text.length); + ptr += sizeof(wchar_t) * text.length; + } +#ifndef OLDXAW + if (mult == 1) + format = ctx->text.left_column < ctx->text.right_column; +#endif + } + else { /* == XawFmt8Bit */ + text.ptr = ptr = XawStackAlloc(text.length * mult, ptrbuf); + for (count = 0; count < mult; count++) { + strncpy(ptr, strbuf, text.length); + ptr += text.length; + } +#ifndef OLDXAW + if (mult == 1) + format = ctx->text.left_column < ctx->text.right_column; +#endif + } + + text.length = text.length * mult; + text.firstPos = 0; + + StartAction(ctx, event); +#ifndef OLDXAW + if (mult == 1) + _XawSourceSetUndoMerge((TextSrcObject)ctx->text.source, True); +#endif + + from = ctx->text.insertPos; +#ifndef OLDXAW + if (ctx->text.overwrite) { + XawTextPosition tmp; + + to = from + mult; + tmp = SrcScan(ctx->text.source, from, XawstEOL, XawsdRight, 1, False); + if (to > tmp) + to = tmp; + } + else +#endif + to = from; + + error = _XawTextReplace(ctx, from , to, &text); + + if (error == XawEditDone) { + ctx->text.from_left = -1; + ctx->text.insertPos = SrcScan(ctx->text.source, ctx->text.old_insert, + XawstPositions, XawsdRight, + text.length, True); + if (ctx->text.auto_fill) { +#ifndef OLDXAW + if (format) + (void)FormatText(ctx, SrcScan(ctx->text.source, + ctx->text.insertPos, XawstEOL, + XawsdLeft, 1, False), False, + NULL, 0); + else +#endif + AutoFill(ctx); + } + } + else + XBell(XtDisplay(ctx), 50); + + XawStackFree(text.ptr, ptrbuf); + EndAction(ctx); + + if (error == XawEditDone && text.format == XawFmt8Bit && text.length == 1 + && (text.ptr[0] == ')' || text.ptr[0] == ']' || text.ptr[0] == '}') + && ctx->text.display_caret) { + static struct timeval tmval = {0, 500000}; + fd_set fds; + Widget source = ctx->text.source; + XawTextPosition insertPos = ctx->text.insertPos, pos, tmp, last; + char left, right = text.ptr[0]; + int level = 0; + XtAppContext app_context = XtWidgetToApplicationContext(w); + + left = right == ')' ? '(' : right == ']' ? '[' : '{'; + + last = insertPos - 1; + do { + text.ptr[0] = left; + pos = XawTextSourceSearch(source, last, XawsdLeft, &text); + if (pos == XawTextSearchError || !IsPositionVisible(ctx, pos)) + return; + text.ptr[0] = right; + tmp = pos; + do { + tmp = XawTextSourceSearch(source, tmp, XawsdRight, &text); + if (tmp == XawTextSearchError) + return; + if (tmp <= last) + ++level; + } while (++tmp <= last); + --level; + last = pos; + } while (level); + + StartAction(ctx, NULL); +#ifndef OLDXAW + _XawSourceSetUndoMerge((TextSrcObject)ctx->text.source, True); +#endif + ctx->text.insertPos = pos; + EndAction(ctx); + + XSync(XtDisplay(w), False); + while (XtAppPending(app_context) & XtIMXEvent) { + XEvent ev; + if (! XtAppPeekEvent(app_context, &ev)) + break; + if (ev.type == KeyPress || ev.type == ButtonPress) + break; + XtAppProcessEvent(app_context, XtIMXEvent); + } + FD_ZERO(&fds); + FD_SET(ConnectionNumber(XtDisplay(w)), &fds); + (void)select(FD_SETSIZE, &fds, NULL, NULL, &tmval); + if (tmval.tv_usec != 500000) + usleep(40000); + + StartAction(ctx, NULL); +#ifndef OLDXAW + _XawSourceSetUndoMerge((TextSrcObject)ctx->text.source, True); +#endif + ctx->text.insertPos = insertPos; + EndAction(ctx); + } +} + +/* IfHexConvertHexElseReturnParam() - called by InsertString + * + * i18n requires the ability to specify multiple characters in a hexa- + * decimal string at once. Since Insert was already too long, I made + * this a seperate routine. + * + * A legal hex string in MBNF: '0' 'x' ( HEX-DIGIT HEX-DIGIT )+ '\0' + * + * WHEN: the passed param is a legal hex string + * RETURNS: a pointer to that converted, null terminated hex string; + * len_return holds the character count of conversion result + * + * WHEN: the passed param is not a legal hex string: + * RETURNS: the parameter passed; + * len_return holds the char count of param. + * + * NOTE: In neither case will there be strings to free. */ +static char * +IfHexConvertHexElseReturnParam(char *param, int *len_return) +{ + char *p; /* steps through param char by char */ + char c; /* holds the character pointed to by p */ + int ind; /* steps through hexval buffer char by char */ + static char hexval[XawTextActionMaxHexChars]; + Boolean first_digit; + + /* reject if it doesn't begin with 0x and at least one more character. */ + if ((param[0] != '0') || (param[1] != 'x') || (param[2] == '\0')) { + *len_return = strlen(param); + return(param); + } + + /* Skip the 0x; go character by character shifting and adding. */ + first_digit = True; + ind = 0; + hexval[ind] = '\0'; + + for (p = param+2; (c = *p) != '\0'; p++) { + hexval[ind] *= 16; + if (c >= '0' && c <= '9') + hexval[ind] += c - '0'; + else if (c >= 'a' && c <= 'f') + hexval[ind] += c - 'a' + 10; + else if (c >= 'A' && c <= 'F') + hexval[ind] += c - 'A' + 10; + else + break; + + /* If we didn't break in preceding line, it was a good hex char. */ + if (first_digit) + first_digit = False; + else { + first_digit = True; + if (++ind < XawTextActionMaxHexChars) + hexval[ind] = '\0'; + else { + *len_return = strlen(param); + return(param); + } + } + } + + /* We quit the above loop becasue we hit a non hex. If that char is \0... */ + if ((c == '\0') && first_digit) { + *len_return = strlen(hexval); + return (hexval); /* ...it was a legal hex string, so return it */ + } + + /* Else, there were non-hex chars or odd digit count, so... */ + + *len_return = strlen(param); + return (param); /* ...return the verbatim string. */ +} + +/* InsertString() - action + * + * Mostly rewritten for R6 i18n. + * + * Each parameter, in turn, will be insert at the inputPos + * and the inputPos advances to the insertion's end. + * + * The exception is that parameters composed of the two + * characters 0x, followed only by an even number of + * hexadecimal digits will be converted to characters */ +/*ARGSUSED*/ +static void +InsertString(Widget w, XEvent *event, String *params, Cardinal *num_params) +{ + TextWidget ctx = (TextWidget)w; + XtAppContext app_con = XtWidgetToApplicationContext(w); + XawTextBlock text; + int i; + + text.firstPos = 0; + text.format = _XawTextFormat(ctx); + + StartAction(ctx, event); + for (i = *num_params; i; i--, params++) { /* DO FOR EACH PARAMETER */ + text.ptr = IfHexConvertHexElseReturnParam(*params, &text.length); + + if (text.length == 0) + continue; + + if (XawTextFormat(ctx, XawFmtWide)) { /* convert to WC */ + int temp_len; + + text.ptr = (char*)_XawTextMBToWC(XtDisplay(w), text.ptr, + &text.length); + + if (text.ptr == NULL) { /* conversion error */ + XtAppWarningMsg(app_con, + "insertString", "textAction", "XawError", + "insert-string()'s parameter contents " + "not legal in this locale.", + NULL, NULL); + ParameterError(w, *params); + continue; + } + + /* Double check that the new input is legal: try to convert to MB. */ + + temp_len = text.length; /* _XawTextWCToMB's 3rd arg is in_out */ + if (_XawTextWCToMB(XtDisplay(w), (wchar_t*)text.ptr, &temp_len) + == NULL) { + XtAppWarningMsg( app_con, + "insertString", "textAction", "XawError", + "insert-string()'s parameter contents " + "not legal in this locale.", + NULL, NULL); + ParameterError(w, *params); + continue; + } + } /* convert to WC */ + + if (_XawTextReplace(ctx, ctx->text.insertPos, + ctx->text.insertPos, &text)) { + XBell(XtDisplay(ctx), 50); + EndAction(ctx); + return; + } + + ctx->text.from_left = -1; + /* Advance insertPos to the end of the string we just inserted. */ + ctx->text.insertPos = SrcScan(ctx->text.source, ctx->text.old_insert, + XawstPositions, XawsdRight, text.length, + True); + + } /* DO FOR EACH PARAMETER */ + + EndAction(ctx); +} + +/* DisplayCaret() - action + * + * The parameter list should contain one boolean value. If the + * argument is true, the cursor will be displayed. If false, not. + * + * The exception is that EnterNotify and LeaveNotify events may + * have a second argument, "always". If they do not, the cursor + * is only affected if the focus member of the event is true. */ +static void +DisplayCaret(Widget w, XEvent *event, String *params, Cardinal *num_params) +{ + TextWidget ctx = (TextWidget)w; + Bool display_caret = True; + + if ((event->type == EnterNotify || event->type == LeaveNotify) + && ((*num_params >= 2) && (strcmp(params[1], "always") == 0)) + && (!event->xcrossing.focus)) + return; + + if (*num_params > 0) { /* default arg is "True" */ + XrmValue from, to; + from.size = strlen(from.addr = params[0]); + XtConvert(w, XtRString, &from, XtRBoolean, &to); + + if (to.addr != NULL) + display_caret = *(Boolean*)to.addr; + if (ctx->text.display_caret == display_caret) + return; + } + StartAction(ctx, event); + ctx->text.display_caret = display_caret; + EndAction(ctx); +} + +#ifndef OLDXAW +static void +Numeric(Widget w, XEvent *event, String *params, Cardinal *num_params) +{ + TextWidget ctx = (TextWidget)w; + + if (ctx->text.numeric) { + long mult = ctx->text.mult; + + if (*num_params != 1 || strlen(params[0]) != 1 + || (!isdigit(params[0][0]) + && (params[0][0] != '-' || mult != 0))) { + char err_buf[256]; + + if (event && (event->type == KeyPress || event->type == KeyRelease) + && params[0][0] == '-') { + InsertChar(w, event, params, num_params); + return; + } + XmuSnprintf(err_buf, sizeof(err_buf), + "numeric: Invalid argument%s'%s'", + *num_params ? ", " : "", *num_params ? params[0] : ""); + XtAppWarning(XtWidgetToApplicationContext(w), err_buf); + ctx->text.numeric = False; + ctx->text.mult = 1; + return; + } + if (params[0][0] == '-') { + ctx->text.mult = 32767; + return; + } + else if (mult == 32767) { + mult = ctx->text.mult = - (params[0][0] - '0'); + return; + } + else { + mult = mult * 10 + (params[0][0] - '0') * (mult < 0 ? -1 : 1); + ctx->text.mult = ctx->text.mult * 10 + (params[0][0] - '0') * + (mult < 0 ? -1 : 1); + } + if (mult != ctx->text.mult || mult >= 32767) { /* checks for overflow */ + XBell(XtDisplay(w), 0); + ctx->text.mult = 1; + ctx->text.numeric = False; + return; + } + } + else + InsertChar(w, event, params, num_params); +} + +/*ARGSUSED*/ +static void +KeyboardReset(Widget w, XEvent *event, String *params, Cardinal *num_params) +{ + TextWidget ctx = (TextWidget)w; + + ctx->text.numeric = False; + ctx->text.mult = 1; + + (void)_XawTextSrcToggleUndo((TextSrcObject)ctx->text.source); + + if (ctx->text.kill_ring_ptr) { + --ctx->text.kill_ring_ptr->refcount; + ctx->text.kill_ring_ptr = NULL; + } + ctx->text.kill_ring = 0; + + XBell(XtDisplay(w), 0); +} +#endif /* OLDXAW */ + +/* Multiply() - action + * + * The parameter list may contain either a number or the string 'Reset'. + * + * A number will multiply the current multiplication factor by that number. + * Many of the text widget actions will will perform n actions, where n is + * the multiplication factor. + * + * The string reset will reset the mutiplication factor to 1. */ +/*ARGSUSED*/ +static void +Multiply(Widget w, XEvent *event, String *params, Cardinal *num_params) +{ + TextWidget ctx = (TextWidget)w; + int mult; + + if (*num_params != 1) { + XtAppError(XtWidgetToApplicationContext(w), + "Xaw Text Widget: multiply() takes exactly one argument."); + XBell(XtDisplay(w), 0); + return; + } + + if ((params[0][0] == 'r') || (params[0][0] == 'R')) { + XBell(XtDisplay(w), 0); +#ifndef OLDXAW + ctx->text.numeric = False; +#endif + ctx->text.mult = 1; + return; + } + +#ifndef OLDXAW + if (params[0][0] == 's' || params[0][0] == 'S') { + ctx->text.numeric = True; + ctx->text.mult = 0; + return; + } + else +#endif + if ((mult = atoi(params[0])) == 0) { + char buf[BUFSIZ]; + + XmuSnprintf(buf, sizeof(buf), + "%s %s", "Xaw Text Widget: multiply() argument", + "must be a number greater than zero, or 'Reset'."); + XtAppError(XtWidgetToApplicationContext(w), buf); + XBell(XtDisplay(w), 50); + return; + } + + ctx->text.mult *= mult; +} + +/* StripOutOldCRs() - called from FormRegion + * + * removes CRs in widget ctx, from from to to. + * + * RETURNS: the new ending location (we may add some characters), + * or XawReplaceError if the widget can't be written to. */ +static XawTextPosition +StripOutOldCRs(TextWidget ctx, XawTextPosition from, XawTextPosition to, + XawTextPosition *pos, int num_pos) +{ + XawTextPosition startPos, endPos, eop_begin, eop_end, temp; + Widget src = ctx->text.source; + XawTextBlock text; + char *buf; + static wchar_t wc_two_spaces[3]; + int idx; + + /* Initialize our TextBlock with two spaces. */ + text.firstPos = 0; + text.format = _XawTextFormat(ctx); + if (text.format == XawFmt8Bit) + text.ptr= " "; + else { + wc_two_spaces[0] = _Xaw_atowc(XawSP); + wc_two_spaces[1] = _Xaw_atowc(XawSP); + wc_two_spaces[2] = 0; + text.ptr = (char*)wc_two_spaces; + } + + /* Strip out CR's. */ + eop_begin = eop_end = startPos = endPos = from; + + /* CONSTCOND */ + while (TRUE) { + endPos=SrcScan(src, startPos, XawstEOL, XawsdRight, 1, False); + + temp = SrcScan(src, endPos, XawstWhiteSpace, XawsdLeft, 1, False); + temp = SrcScan(src, temp, XawstWhiteSpace, XawsdRight,1, False); + + if (temp > startPos) + endPos = temp; + + if (endPos >= to) + break; + + if (endPos >= eop_begin) { + startPos = eop_end; + eop_begin=SrcScan(src, startPos, XawstParagraph, + XawsdRight, 1,False); + eop_end = SrcScan(src, startPos, XawstParagraph, + XawsdRight, 1, True); + } + else { + XawTextPosition periodPos, next_word; + int i, len; + + periodPos = SrcScan(src, endPos, XawstPositions, + XawsdLeft, 1, True); + next_word = SrcScan(src, endPos, XawstWhiteSpace, + XawsdRight, 1, False); + + len = next_word - periodPos; + + text.length = 1; + buf = _XawTextGetText(ctx, periodPos, next_word); + if (text.format == XawFmtWide) { + if (periodPos < endPos && ((wchar_t*)buf)[0] == _Xaw_atowc('.')) + text.length++; + } + else + if (periodPos < endPos && buf[0] == '.') + text.length++; /* Put in two spaces. */ + + /* + * Remove all extra spaces. + */ + for (i = 1 ; i < len; i++) + if (text.format == XawFmtWide) { + if (!iswspace(((wchar_t*)buf)[i]) || ((periodPos + i) >= to)) + break; + } + else if (!isspace(buf[i]) || (periodPos + i) >= to) + break; + + XtFree(buf); + + to -= (i - text.length - 1); + startPos = SrcScan(src, periodPos, XawstPositions, + XawsdRight, i, True); + if (_XawTextReplace(ctx, endPos, startPos, &text) != XawEditDone) + return (XawReplaceError); + + for (idx = 0; idx < num_pos; idx++) { + if (endPos < pos[idx]) { + if (startPos < pos[idx]) + pos[idx] -= startPos - endPos; + else + pos[idx] = endPos; + pos[idx] += text.length; + } + } + + startPos -= i - text.length; + } + } + + return (to); +} + +/* InsertNewCRs() - called from FormRegion + * + * inserts new CRs for FormRegion, thus for FormParagraph action */ +static void +InsertNewCRs(TextWidget ctx, XawTextPosition from, XawTextPosition to, + XawTextPosition *pos, int num_pos) +{ + XawTextPosition startPos, endPos, space, eol; + XawTextBlock text; + int i, width, height, len, wwidth, idx; + char *buf; + static wchar_t wide_CR[2]; + + text.firstPos = 0; + text.length = 1; + text.format = _XawTextFormat(ctx); + + if (text.format == XawFmt8Bit) + text.ptr = "\n"; + else { + wide_CR[0] = _Xaw_atowc(XawLF); + wide_CR[1] = 0; + text.ptr = (char*)wide_CR; + } + + startPos = from; + + wwidth = (int)XtWidth(ctx) - (int)HMargins(ctx); + if (ctx->text.wrap != XawtextWrapNever) { + XRectangle cursor; + + XawTextSinkGetCursorBounds(ctx->text.sink, &cursor); + wwidth -= (int)cursor.width; + } + wwidth = XawMax(0, wwidth); + + /* CONSTCOND */ + while (TRUE) { + XawTextSinkFindPosition(ctx->text.sink, startPos, + (int)ctx->text.r_margin.left, wwidth, + True, &eol, &width, &height); + if (eol == startPos) + ++eol; + if (eol >= to) + break; + + eol = SrcScan(ctx->text.source, eol, XawstPositions, + XawsdLeft, 1, True); + space = SrcScan(ctx->text.source, eol, XawstWhiteSpace, + XawsdRight,1, True); + + startPos = endPos = eol; + if (eol == space) + return; + + len = (int)(space - eol); + buf = _XawTextGetText(ctx, eol, space); + for (i = 0 ; i < len ; i++) + if (text.format == XawFmtWide) { + if (!iswspace(((wchar_t*)buf)[i])) + break; + } + else if (!isspace(buf[i])) + break; + + to -= (i - 1); + endPos = SrcScan(ctx->text.source, endPos, + XawstPositions, XawsdRight, i, True); + XtFree(buf); + + if (_XawTextReplace(ctx, startPos, endPos, &text)) + return; + + for (idx = 0; idx < num_pos; idx++) { + if (startPos < pos[idx]) { + if (endPos < pos[idx]) + pos[idx] -= endPos - startPos; + else + pos[idx] = startPos; + pos[idx] += text.length; + } + } + + startPos = SrcScan(ctx->text.source, startPos, + XawstPositions, XawsdRight, 1, True); + } +} + +/* FormRegion() - called by FormParagraph + * + * oversees the work of paragraph-forming a region + * + * Return: + * XawEditDone if successful, or XawReplaceError + */ +static int +FormRegion(TextWidget ctx, XawTextPosition from, XawTextPosition to, + XawTextPosition *pos, int num_pos) +{ +#ifndef OLDXAW + Bool format = ctx->text.auto_fill + && ctx->text.left_column < ctx->text.right_column; +#endif + + if (from >= to) + return (XawEditDone); + +#ifndef OLDXAW + if (format) { + XawTextPosition len = ctx->text.lastPos; + int inc = 0; + + if (ctx->text.justify == XawjustifyLeft || + ctx->text.justify == XawjustifyFull) { + Untabify(ctx, from, to, pos, num_pos, NULL); + to += ctx->text.lastPos - len; + len = ctx->text.insertPos; + (void)BlankLine((Widget)ctx, from, &inc); + if (from + inc >= to) + return (XawEditDone); + } + if (!StripSpaces(ctx, from + inc, to, pos, num_pos, NULL)) + return (XawReplaceError); + to += ctx->text.lastPos - len; + + FormatText(ctx, from, ctx->text.justify != XawjustifyFull, pos, num_pos); + } + else { +#endif + if ((to = StripOutOldCRs(ctx, from, to, pos, num_pos)) == XawReplaceError) + return (XawReplaceError); + InsertNewCRs(ctx, from, to, pos, num_pos); +#ifndef OLDXAW + } +#endif + ctx->text.from_left = -1; + + return (XawEditDone); +} + +#ifndef OLDXAW +static Bool +BlankLine(Widget w, XawTextPosition pos, int *blanks_return) +{ + int i, blanks = 0; + XawTextBlock block; + Widget src = XawTextGetSource(w); + XawTextPosition l = SrcScan(src, pos, XawstEOL, XawsdLeft, 1, False); + XawTextPosition r = SrcScan(src, pos, XawstEOL, XawsdRight, 1, False); + + while (l < r) { + l = XawTextSourceRead(src, l, &block, r - l); + if (block.length == 0) { + if (blanks_return) + *blanks_return = blanks; + return (True); + } + if (XawTextFormat((TextWidget)w, XawFmt8Bit)) { + for (i = 0; i < block.length; i++, blanks++) + if (block.ptr[i] != ' ' && + block.ptr[i] != '\t') { + if (blanks_return) + *blanks_return = blanks; + return (block.ptr[i] == '\n'); + } + } + else if (XawTextFormat((TextWidget)w, XawFmtWide)) { + for (i = 0; i < block.length; i++, blanks++) + if (_Xaw_atowc(XawSP) != ((wchar_t*)block.ptr)[i] && + _Xaw_atowc(XawTAB) != ((wchar_t*)block.ptr)[i]) { + if (blanks_return) + *blanks_return = blanks; + return (_Xaw_atowc(XawLF) == ((wchar_t*)block.ptr)[i]); + } + } + } + + return (True); +} + +static Bool +GetBlockBoundaries(TextWidget ctx, + XawTextPosition *from_return, XawTextPosition *to_return) +{ + XawTextPosition from, to; + + if (ctx->text.auto_fill && ctx->text.left_column < ctx->text.right_column) { + if (ctx->text.s.left != ctx->text.s.right) { + from = SrcScan(ctx->text.source, + XawMin(ctx->text.s.left, ctx->text.s.right), + XawstEOL, XawsdLeft, 1, False); + to = SrcScan(ctx->text.source, + XawMax(ctx->text.s.right, ctx->text.s.right), + XawstEOL, XawsdRight, 1, False); + } + else { + XawTextBlock block; + XawTextPosition tmp; + Bool first; + + from = to = ctx->text.insertPos; + + /* find from position */ + first = True; + while (1) { + tmp = from; + from = SrcScan(ctx->text.source, from, XawstEOL, XawsdLeft, + 1 + !first, False); + XawTextSourceRead(ctx->text.source, from, &block, 1); + if (block.length == 0 || + (XawTextFormat(ctx, XawFmt8Bit) && + block.ptr[0] != ' ' && + block.ptr[0] != '\t' && + !isalnum(*(unsigned char*)block.ptr)) || + (XawTextFormat(ctx, XawFmtWide) && + _Xaw_atowc(XawSP) != *(wchar_t*)block.ptr && + _Xaw_atowc(XawTAB) != *(wchar_t*)block.ptr && + !iswalnum(*(wchar_t*)block.ptr)) || + BlankLine((Widget)ctx, from, NULL)) { + from = tmp; + break; + } + if (from == tmp && !first) + break; + first = False; + } + if (first) + return (False); + + /* find to position */ + first = True; + while (1) { + tmp = to; + to = SrcScan(ctx->text.source, to, XawstEOL, XawsdRight, + 1 + !first, False); + XawTextSourceRead(ctx->text.source, to + (to < ctx->text.lastPos), + &block, 1); + if (block.length == 0 || + (XawTextFormat(ctx, XawFmt8Bit) && + block.ptr[0] != ' ' && + block.ptr[0] != '\t' && + !isalnum(*(unsigned char*)block.ptr)) || + (XawTextFormat(ctx, XawFmtWide) && + _Xaw_atowc(XawSP) != *(wchar_t*)block.ptr && + _Xaw_atowc(XawTAB) != *(wchar_t*)block.ptr && + !iswalnum(*(wchar_t*)block.ptr)) || + BlankLine((Widget)ctx, to, NULL)) + break; + if (to == tmp && !first) + break; + first = False; + } + } + } + else { + from = SrcScan(ctx->text.source, ctx->text.insertPos, XawstEOL, + XawsdLeft, 1, False); + if (BlankLine((Widget)ctx, from, NULL)) + return (False); + from = SrcScan(ctx->text.source, from, XawstParagraph, + XawsdLeft, 1, False); + if (BlankLine((Widget)ctx, from, NULL)) + from = SrcScan(ctx->text.source, from, XawstEOL, + XawsdRight, 1, True); + to = SrcScan(ctx->text.source, from, XawstParagraph, + XawsdRight, 1, False); + } + + if (from < to) { + *from_return = from; + *to_return = to; + return (True); + } + + return (False); +} +#endif /* OLDXAW */ + +/* FormParagraph() - action + * + * removes and reinserts CRs to maximize line length without clipping */ +/*ARGSUSED*/ +static void +FormParagraph(Widget w, XEvent *event, String *params, Cardinal *num_params) +{ + TextWidget ctx = (TextWidget)w; + XawTextPosition from, to, buf[32], *pos; +#ifndef OLDXAW + XawTextPosition endPos = 0; + char *lbuf = NULL, *rbuf; + TextSrcObject src = (TextSrcObject)ctx->text.source; + Cardinal i; + Bool undo = src->textSrc.enable_undo && src->textSrc.undo_state == False; +#endif + + StartAction(ctx, event); + +#ifndef OLDXAW + pos = XawStackAlloc(sizeof(XawTextPosition) * src->textSrc.num_text, buf); + for (i = 0; i < src->textSrc.num_text; i++) + pos[i] = ((TextWidget)src->textSrc.text[i])->text.old_insert; +#else + pos = buf; + *pos = ctx->text.old_insert; +#endif + +#ifndef OLDXAW + if (!GetBlockBoundaries(ctx, &from, &to)) { + EndAction(ctx); + XawStackFree(pos, buf); + return; + } + + if (undo) { + src->textSrc.undo_state = True; + lbuf = _XawTextGetText(ctx, from, to); + endPos = ctx->text.lastPos; + } + + if (FormRegion(ctx, from, to, pos, src->textSrc.num_text) == XawReplaceError) { +#else + from = SrcScan(ctx->text.source, ctx->text.insertPos, + XawstParagraph, XawsdLeft, 1, False); + to = SrcScan(ctx->text.source, from, + XawstParagraph, XawsdRight, 1, False); + + if (FormRegion(ctx, from, to, pos, 1) == XawReplaceError) { +#endif + XawStackFree(pos, buf); + XBell(XtDisplay(w), 0); +#ifndef OLDXAW + if (undo) { + src->textSrc.undo_state = False; + XtFree(lbuf); + } +#endif + } +#ifndef OLDXAW + else if (undo) { + /* makes the form-paragraph only one undo/redo step */ + unsigned llen, rlen, size; + XawTextBlock block; + + llen = to - from; + rlen = llen + (ctx->text.lastPos - endPos); + + block.firstPos = 0; + block.format = _XawTextFormat(ctx); + + rbuf = _XawTextGetText(ctx, from, from + rlen); + + size = XawTextFormat(ctx, XawFmtWide) ? sizeof(wchar_t) : sizeof(char); + if (llen != rlen || memcmp(lbuf, rbuf, llen * size)) { + block.ptr = lbuf; + block.length = llen; + _XawTextReplace(ctx, from, from + rlen, &block); + + src->textSrc.undo_state = False; + block.ptr = rbuf; + block.length = rlen; + _XawTextReplace(ctx, from, from + llen, &block); + } + else + src->textSrc.undo_state = False; + XtFree(lbuf); + XtFree(rbuf); + } + + for (i = 0; i < src->textSrc.num_text; i++) { + TextWidget tw = (TextWidget)src->textSrc.text[i]; + + tw->text.old_insert = tw->text.insertPos = pos[i]; + _XawTextBuildLineTable(tw, SrcScan((Widget)src, tw->text.lt.top, XawstEOL, + XawsdLeft, 1, False), False); + tw->text.clear_to_eol = True; + } +#else + ctx->text.old_insert = ctx->text.insertPos = *pos; + _XawTextBuildLineTable(ctx, SrcScan(ctx->text.source, ctx->text.lt.top, + XawstEOL, XawsdLeft, 1, False), False); + ctx->text.clear_to_eol = True; +#endif + XawStackFree(pos, buf); + ctx->text.showposition = True; + + EndAction(ctx); +} + +/* TransposeCharacters() - action + * + * Swaps the character to the left of the mark + * with the character to the right of the mark */ +/*ARGSUSED*/ +static void +TransposeCharacters(Widget w, XEvent *event, + String *params, Cardinal *num_params) +{ + TextWidget ctx = (TextWidget)w; + XawTextPosition start, end; + XawTextBlock text; + char *buf; + int i, mult = MULT(ctx); + + if (mult < 0) { + ctx->text.mult = 1; + return; + } + + StartAction(ctx, event); + + /* Get bounds. */ + + start = SrcScan(ctx->text.source, ctx->text.insertPos, XawstPositions, + XawsdLeft, 1, True); + end = SrcScan(ctx->text.source, ctx->text.insertPos, XawstPositions, + XawsdRight, mult, True); + + /* Make sure we aren't at the very beginning or end of the buffer. */ + + if (start == ctx->text.insertPos || end == ctx->text.insertPos) { + XBell(XtDisplay(w), 0); /* complain. */ + EndAction(ctx); + return; + } + + ctx->text.from_left = -1; + ctx->text.insertPos = end; + + text.firstPos = 0; + text.format = _XawTextFormat(ctx); + + /* Retrieve text and swap the characters. */ + if (text.format == XawFmtWide) { + wchar_t wc; + wchar_t *wbuf; + + wbuf = (wchar_t*)_XawTextGetText(ctx, start, end); + text.length = wcslen(wbuf); + wc = wbuf[0]; + for (i = 1; i < text.length; i++) + wbuf[i - 1] = wbuf[i]; + wbuf[i - 1] = wc; + buf = (char*)wbuf; /* so that it gets assigned and freed */ + } + else { /* thus text.format == XawFmt8Bit */ + char c; + + buf = _XawTextGetText(ctx, start, end); + text.length = strlen(buf); + c = buf[0]; + for (i = 1; i < text.length; i++) + buf[i - 1] = buf[i]; + buf[i - 1] = c; + } + + text.ptr = buf; + + /* Store new text in source. */ + + if (_XawTextReplace (ctx, start, end, &text)) + XBell(XtDisplay(w), 0); + XtFree((char *)buf); + EndAction(ctx); +} + +#ifndef OLDXAW +/*ARGSUSED*/ +static void +Undo(Widget w, XEvent *event, String *params, Cardinal *num_params) +{ + TextWidget ctx = (TextWidget)w; + int mul = MULT(ctx); + Bool toggle = False; + + if (mul < 0) { + toggle = True; + _XawTextSrcToggleUndo((TextSrcObject)ctx->text.source); + ctx->text.mult = mul = -mul; + } + + StartAction(ctx, event); + for (; mul; --mul) + if (!_XawTextSrcUndo((TextSrcObject)ctx->text.source, &ctx->text.insertPos)) + break; + ctx->text.showposition = True; + + if (toggle) + _XawTextSrcToggleUndo((TextSrcObject)ctx->text.source); + EndAction(ctx); +} +#endif + +/* NoOp() - action + * This action performs no action, and allows the user or + * application programmer to unbind a translation. + * + * Note: If the parameter list contains the string "RingBell" then + * this action will ring the bell. + */ +/*ARGSUSED*/ +static void +NoOp(Widget w, XEvent *event, String *params, Cardinal *num_params) +{ + if (*num_params != 1) + return; + + switch(params[0][0]) { + case 'R': + case 'r': + XBell(XtDisplay(w), 0); + /*FALLTROUGH*/ + default: + break; + } +} + +/* Reconnect() - action + * This reconnects to the input method. The user will typically call + * this action if/when connection has been severed, or when the app + * was started up before an IM was started up + */ +/*ARGSUSED*/ +static void +Reconnect(Widget w, XEvent *event, String *params, Cardinal *num_params) +{ + _XawImReconnect(w); +} + +#define CAPITALIZE 1 +#define DOWNCASE 2 +#define UPCASE 3 + +#ifdef NO_LIBC_I18N +static int +ToLower(int ch) +{ + char buf[2]; + + *buf = ch; + XmuNCopyISOLatin1Lowered(buf, buf, sizeof(buf)); + + return (*buf); +} + +static int +ToUpper(int ch) +{ + char buf[2]; + + *buf = ch; + XmuNCopyISOLatin1Uppered(buf, buf, sizeof(buf)); + + return (*buf); +} + +static int +IsAlnum(int ch) +{ + return ((ch >= '0' && ch <= '9') || ToUpper(ch) != ch || ToLower(ch) != ch); +} + +static int +IsLower(int ch) +{ + char upbuf[2]; + char lobuf[2]; + + *upbuf = *lobuf = ch; + XmuNCopyISOLatin1Lowered(lobuf, lobuf, sizeof(lobuf)); + XmuNCopyISOLatin1Uppered(upbuf, upbuf, sizeof(upbuf)); + + return (*lobuf != *upbuf && ch == *lobuf); +} + +static int +IsUpper(int ch) +{ + char upbuf[2]; + char lobuf[2]; + + *upbuf = *lobuf = ch; + XmuNCopyISOLatin1Lowered(lobuf, lobuf, sizeof(lobuf)); + XmuNCopyISOLatin1Uppered(upbuf, upbuf, sizeof(upbuf)); + + return (*lobuf != *upbuf && ch == *upbuf); +} +#else +#define ToLower tolower +#define ToUpper toupper +#define IsAlnum isalnum +#define IsLower islower +#define IsUpper isupper +#endif + +static void +CaseProc(Widget w, XEvent *event, int cmd) +{ + TextWidget ctx = (TextWidget)w; + short mul = MULT(ctx); + XawTextPosition left, right; + XawTextBlock block; + Bool changed = False; + unsigned char ch, mb[sizeof(wchar_t)]; + int i, count; + + if (mul > 0) + right = SrcScan(ctx->text.source, left = ctx->text.insertPos, + XawstAlphaNumeric, XawsdRight, mul, False); + else + left = SrcScan(ctx->text.source, right = ctx->text.insertPos, + XawstAlphaNumeric, XawsdLeft, 1 + -mul, False); + block.firstPos = 0; + block.format = _XawTextFormat(ctx); + block.length = right - left; + block.ptr = _XawTextGetText(ctx, left, right); + + count = 0; + if (block.format == XawFmt8Bit) + for (i = 0; i < block.length; i++) { + if (!IsAlnum(*mb = (unsigned char)block.ptr[i])) + count = 0; + else if (++count == 1 || cmd != CAPITALIZE) { + ch = cmd == DOWNCASE ? ToLower(*mb) : ToUpper(*mb); + if (ch != *mb) { + changed = True; + block.ptr[i] = ch; + } + } + else if (cmd == CAPITALIZE) { + if ((ch = ToLower(*mb)) != *mb) { + changed = True; + block.ptr[i] = ch; + } + } + } + else + for (i = 0; i < block.length; i++) { + wctomb((char*)mb, ((wchar_t*)block.ptr)[i]); + if (!IsAlnum(*mb)) + count = 0; + else if (++count == 1 || cmd != CAPITALIZE) { + ch = cmd == DOWNCASE ? ToLower(*mb) : ToUpper(*mb); + if (ch != *mb) { + changed = True; + ((wchar_t*)block.ptr)[i] = _Xaw_atowc(ch); + } + } + else if (cmd == CAPITALIZE) { + if ((ch = ToLower(*mb)) != *mb) { + changed = True; + ((wchar_t*)block.ptr)[i] = _Xaw_atowc(ch); + } + } + } + + StartAction(ctx, event); + if (changed && _XawTextReplace(ctx, left, right, &block) != XawEditDone) + XBell(XtDisplay(ctx), 0); + ctx->text.insertPos = right; + EndAction(ctx); + + XtFree(block.ptr); +} + +/*ARGSUSED*/ +static void +CapitalizeWord(Widget w, XEvent *event, String *params, Cardinal *num_params) +{ + CaseProc(w, event, CAPITALIZE); +} + +/*ARGSUSED*/ +static void +DowncaseWord(Widget w, XEvent *event, String *params, Cardinal *num_params) +{ + CaseProc(w, event, DOWNCASE); +} + +/*ARGSUSED*/ +static void +UpcaseWord(Widget w, XEvent *event, String *params, Cardinal *num_params) +{ + CaseProc(w, event, UPCASE); +} +#undef CAPITALIZE +#undef DOWNCASE +#undef UPCASE + +XtActionsRec _XawTextActionsTable[] = { + /* motion */ + {"forward-character", MoveForwardChar}, + {"backward-character", MoveBackwardChar}, + {"forward-word", MoveForwardWord}, + {"backward-word", MoveBackwardWord}, + {"forward-paragraph", MoveForwardParagraph}, + {"backward-paragraph", MoveBackwardParagraph}, + {"beginning-of-line", MoveToLineStart}, + {"end-of-line", MoveToLineEnd}, + {"next-line", MoveNextLine}, + {"previous-line", MovePreviousLine}, + {"next-page", MoveNextPage}, + {"previous-page", MovePreviousPage}, + {"beginning-of-file", MoveBeginningOfFile}, + {"end-of-file", MoveEndOfFile}, + {"scroll-one-line-up", ScrollOneLineUp}, + {"scroll-one-line-down", ScrollOneLineDown}, + + /* delete */ + {"delete-next-character", DeleteForwardChar}, + {"delete-previous-character", DeleteBackwardChar}, + {"delete-next-word", DeleteForwardWord}, + {"delete-previous-word", DeleteBackwardWord}, + {"delete-selection", DeleteCurrentSelection}, + {"delete", Delete}, + + /* kill */ + {"kill-word", KillForwardWord}, + {"backward-kill-word", KillBackwardWord}, + {"kill-selection", KillCurrentSelection}, + {"kill-to-end-of-line", KillToEndOfLine}, + {"kill-to-end-of-paragraph", KillToEndOfParagraph}, + + /* new line */ + {"newline-and-indent", InsertNewLineAndIndent}, + {"newline-and-backup", InsertNewLineAndBackup}, + {"newline", InsertNewLine}, + + /* selection */ + {"select-word", SelectWord}, + {"select-all", SelectAll}, + {"select-start", SelectStart}, + {"select-adjust", SelectAdjust}, + {"select-end", SelectEnd}, + {"select-save", SelectSave}, + {"extend-start", ExtendStart}, + {"extend-adjust", ExtendAdjust}, + {"extend-end", ExtendEnd}, + {"insert-selection", InsertSelection}, + + /* miscellaneous */ + {"redraw-display", RedrawDisplay}, + {"insert-file", _XawTextInsertFile}, + {"search", _XawTextSearch}, + {"insert-char", InsertChar}, + {"insert-string", InsertString}, + {"focus-in", TextFocusIn}, + {"focus-out", TextFocusOut}, + {"enter-window", TextEnterWindow}, + {"leave-window", TextLeaveWindow}, + {"display-caret", DisplayCaret}, + {"multiply", Multiply}, + {"form-paragraph", FormParagraph}, + {"transpose-characters", TransposeCharacters}, + {"set-keyboard-focus", SetKeyboardFocus}, +#ifndef OLDXAW + {"numeric", Numeric}, + {"undo", Undo}, + {"keyboard-reset", KeyboardReset}, + {"kill-ring-yank", KillRingYank}, + {"toggle-overwrite", ToggleOverwrite}, + {"indent", Indent}, +#endif + {"no-op", NoOp}, + + /* case transformations */ + {"capitalize-word", CapitalizeWord}, + {"downcase-word", DowncaseWord}, + {"upcase-word", UpcaseWord}, + + /* action to bind translations for text dialogs */ + {"InsertFileAction", _XawTextInsertFileAction}, + {"DoSearchAction", _XawTextDoSearchAction}, + {"DoReplaceAction", _XawTextDoReplaceAction}, + {"SetField", _XawTextSetField}, + {"PopdownSearchAction", _XawTextPopdownSearchAction}, + + /* reconnect to Input Method */ + {"reconnect-im", Reconnect} /* Li Yuhong, Omron KK, 1991 */ +}; + +Cardinal _XawTextActionsTableCount = XtNumber(_XawTextActionsTable); |