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Diffstat (limited to 'nx-X11/lib/Xaw/MultiSrc.c')
| -rw-r--r-- | nx-X11/lib/Xaw/MultiSrc.c | 1620 |
1 files changed, 0 insertions, 1620 deletions
diff --git a/nx-X11/lib/Xaw/MultiSrc.c b/nx-X11/lib/Xaw/MultiSrc.c deleted file mode 100644 index 2daf0f6e8..000000000 --- a/nx-X11/lib/Xaw/MultiSrc.c +++ /dev/null @@ -1,1620 +0,0 @@ -/* $Xorg: MultiSrc.c,v 1.4 2001/02/09 02:03:44 xorgcvs Exp $ */ - -/* - * Copyright 1991 by OMRON Corporation - * - * 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, and that the name OMRON not be used in - * advertising or publicity pertaining to distribution of the software without - * specific, written prior permission. OMRON makes no representations - * about the suitability of this software for any purpose. It is provided - * "as is" without express or implied warranty. - * - * OMRON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, - * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO - * EVENT SHALL OMRON BE LIABLE FOR ANY SPECIAL, INDIRECT OR - * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, - * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER - * TORTUOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR - * PERFORMANCE OF THIS SOFTWARE. - * - * Authors: Chris Peterson MIT X Consortium - * Li Yuhong OMRON Corporation - * Frank Sheeran OMRON Corporation - * - * Much code taken from X11R3 String and Disk Sources. - */ -/* $XFree86: xc/lib/Xaw/MultiSrc.c,v 1.28 2002/11/21 16:22:52 paulo Exp $ */ - -/* - -Copyright 1991, 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 <ctype.h> -#include <errno.h> -#include <X11/IntrinsicP.h> -#include <X11/StringDefs.h> -#include <X11/Xfuncs.h> -#include <X11/Xos.h> -#include <X11/Xmu/CharSet.h> -#include <X11/Xmu/Misc.h> -#include <X11/Xaw/XawInit.h> -#include <X11/Xaw/MultiSrcP.h> -#include <X11/Xaw/XawImP.h> -#include "XawI18n.h" -#include "Private.h" - -#include <sys/types.h> -#include <sys/stat.h> -#include <fcntl.h> - -#define MAGIC_VALUE ((XawTextPosition)-1) -#define streq(a, b) (strcmp((a), (b)) == 0) - -#ifdef X_NOT_POSIX -#define Off_t long -#define Size_t unsigned int -#else -#define Off_t off_t -#define Size_t size_t -#endif - - -/* - * Class Methods - */ -static XawTextPosition ReadText(Widget, XawTextPosition, XawTextBlock*, int); -static int ReplaceText(Widget, XawTextPosition, XawTextPosition, - XawTextBlock*); -static XawTextPosition Scan(Widget, XawTextPosition, XawTextScanType, - XawTextScanDirection, int, Bool); -static XawTextPosition Search(Widget, XawTextPosition, XawTextScanDirection, - XawTextBlock*); -static void XawMultiSrcClassInitialize(void); -static void XawMultiSrcDestroy(Widget); -static void XawMultiSrcInitialize(Widget, Widget, ArgList, Cardinal*); -static Boolean XawMultiSrcSetValues(Widget, Widget, Widget, - ArgList, Cardinal*); -static void XawMultiSrcGetValuesHook(Widget, ArgList, Cardinal*); - -/* - * Prototypes - */ -static MultiPiece *AllocNewPiece(MultiSrcObject, MultiPiece*); -static void BreakPiece(MultiSrcObject, MultiPiece*); -static Boolean CvtMultiTypeToString(Display*, XrmValuePtr, Cardinal*, - XrmValuePtr, XrmValuePtr, XtPointer*); -static void CvtStringToMultiType(XrmValuePtr, Cardinal*, - XrmValuePtr, XrmValuePtr); -static MultiPiece *FindPiece(MultiSrcObject, XawTextPosition, - XawTextPosition*); -static void FreeAllPieces(MultiSrcObject); -static FILE *InitStringOrFile(MultiSrcObject, Bool); -static void LoadPieces(MultiSrcObject, FILE*, char*); -static void RemovePiece(MultiSrcObject, MultiPiece*); -static void RemoveOldStringOrFile(MultiSrcObject, Bool); -static String StorePiecesInString(MultiSrcObject); -static Bool WriteToFile(String, String); -static void GetDefaultPieceSize(Widget, int, XrmValue*); - -/* - * Initialization - */ -#define offset(field) XtOffsetOf(MultiSrcRec, multi_src.field) -static XtResource resources[] = { - { - XtNstring, - XtCString, - XtRString, - sizeof(XtPointer), - offset(string), - XtRPointer, - NULL - }, - { - XtNtype, - XtCType, - XtRMultiType, - sizeof(XawAsciiType), - offset(type), - XtRImmediate, - (XtPointer)XawAsciiString - }, - { - XtNdataCompression, - XtCDataCompression, - XtRBoolean, - sizeof(Boolean), - offset(data_compression), - XtRImmediate, - (XtPointer)False - }, - { - XtNpieceSize, - XtCPieceSize, - XtRInt, - sizeof(XawTextPosition), - offset(piece_size), - XtRCallProc, - (XtPointer)GetDefaultPieceSize - }, -#ifdef OLDXAW - { - XtNcallback, - XtCCallback, - XtRCallback, - sizeof(XtPointer), - offset(callback), - XtRCallback, - (XtPointer)NULL - }, -#endif - { - XtNuseStringInPlace, - XtCUseStringInPlace, - XtRBoolean, - sizeof(Boolean), - offset(use_string_in_place), - XtRImmediate, - (XtPointer)False - }, - { - XtNlength, - XtCLength, - XtRInt, - sizeof(int), - offset(multi_length), - XtRImmediate, - (XtPointer)MAGIC_VALUE - }, -}; -#undef offset - -#define superclass (&textSrcClassRec) -MultiSrcClassRec multiSrcClassRec = { - /* object */ - { - (WidgetClass)superclass, /* superclass */ - "MultiSrc", /* class_name */ - sizeof(MultiSrcRec), /* widget_size */ - XawMultiSrcClassInitialize, /* class_initialize */ - NULL, /* class_part_initialize */ - False, /* class_inited */ - XawMultiSrcInitialize, /* initialize */ - NULL, /* initialize_hook */ - NULL, /* obj1 */ - NULL, /* obj2 */ - 0, /* obj3 */ - resources, /* resources */ - XtNumber(resources), /* num_resources */ - NULLQUARK, /* xrm_class */ - False, /* obj4 */ - False, /* obj5 */ - False, /* obj6 */ - False, /* obj7 */ - XawMultiSrcDestroy, /* destroy */ - NULL, /* obj8 */ - NULL, /* obj9 */ - XawMultiSrcSetValues, /* set_values */ - NULL, /* set_values_hook */ - NULL, /* obj10 */ - XawMultiSrcGetValuesHook, /* get_values_hook */ - NULL, /* obj11 */ - XtVersion, /* version */ - NULL, /* callback_private */ - NULL, /* obj12 */ - NULL, /* obj13 */ - NULL, /* obj14 */ - NULL, /* extension */ - }, - /* text_src */ - { - ReadText, /* Read */ - ReplaceText, /* Replace */ - Scan, /* Scan */ - Search, /* Search */ - XtInheritSetSelection, /* SetSelection */ - XtInheritConvertSelection, /* ConvertSelection */ - }, - /* multi_src */ - { - NULL, /* extension */ - }, -}; - -WidgetClass multiSrcObjectClass = (WidgetClass)&multiSrcClassRec; - -static XrmQuark Qstring, Qfile; - -/* - * Implementation - */ -static void -XawMultiSrcClassInitialize(void) -{ - XawInitializeWidgetSet(); - Qstring = XrmPermStringToQuark(XtEstring); - Qfile = XrmPermStringToQuark(XtEfile); - XtAddConverter(XtRString, XtRMultiType, CvtStringToMultiType, NULL, 0); - XtSetTypeConverter(XtRMultiType, XtRString, CvtMultiTypeToString, NULL, 0, - XtCacheNone, NULL); -} - -/* - * Function: - * XawMultiSrcInitialize - * - * Parameters: - * request - widget requested by the argument list - * cnew - the new widget with both resource and non resource values - * args - (unused) - * num_args - (unused) - * - * Description: - * Initializes the multi src object - */ -/*ARGSUSED*/ -static void -XawMultiSrcInitialize(Widget request, Widget cnew, - ArgList args, Cardinal *num_args) -{ - MultiSrcObject src = (MultiSrcObject)cnew; - FILE *file; - - /* - * Set correct flags (override resources) depending upon widget class - */ -#ifdef OLDXAW - src->multi_src.changes = False; -#else - src->text_src.changed = False; -#endif - src->multi_src.allocated_string = False; - - if (src->multi_src.use_string_in_place && src->multi_src.string == NULL) - src->multi_src.use_string_in_place = False; - - file = InitStringOrFile(src, src->multi_src.type == XawAsciiFile); - LoadPieces(src, file, NULL); - - if (file != NULL) - fclose(file); - src->text_src.text_format = XawFmtWide; -} - -/* - * Function: - * ReadText - * - * Parameters: - * w - MultiSource object - * pos - position of the text to retrieve - * text - text block that will contain returned text - * length - maximum number of characters to read - * - * Description: - * This function reads the source. - * - * Returns: - * The character position following the retrieved text. - */ -static XawTextPosition -ReadText(Widget w, XawTextPosition pos, XawTextBlock *text, int length) -{ - MultiSrcObject src = (MultiSrcObject)w; - XawTextPosition count, start; - MultiPiece *piece = FindPiece(src, pos, &start); - - text->format = XawFmtWide; - text->firstPos = pos; - text->ptr = (char *)(piece->text + (pos - start)); - count = piece->used - (pos - start); - text->length = Max(0, (length > count) ? count : length); - - return (pos + text->length); -} - -/* - * Function: - * ReplaceText - * - * Parameters: - * w - MultiSource object - * startPos - ends of text that will be removed - * endPos - "" - * text - new text to be inserted into buffer at startPos - * - * Description: - * Replaces a block of text with new text. - * - * Returns: - * XawEditDone on success, XawEditError otherwise - */ -/*ARGSUSED*/ -static int -ReplaceText(Widget w, XawTextPosition startPos, XawTextPosition endPos, - XawTextBlock *u_text_p) -{ - MultiSrcObject src = (MultiSrcObject)w; - MultiPiece *start_piece, *end_piece, *temp_piece; - XawTextPosition start_first, end_first; - int length, firstPos; - wchar_t *wptr; - Bool local_artificial_block = False; - XawTextBlock text; - - /* STEP 1: The user handed me a text block called `u_text' that may be - * in either FMTWIDE or FMT8BIT (ie MB.) Later code needs the block - * `text' to hold FMTWIDE. So, this copies `u_text' to `text', and if - * `u_text' was MB, I knock it up to WIDE - */ - if (u_text_p->length == 0) /* if so, the block contents never ref'd */ - text.length = 0; - - else if (u_text_p->format == XawFmtWide) { - local_artificial_block = False; /* don't have to free it ourselves */ - text.firstPos = u_text_p->firstPos; - text.length = u_text_p->length; - text.ptr = u_text_p->ptr; - } - else { - /* - * WARNING! u_text->firstPos and length are in units of CHAR, - * not CHARACTERS! - */ - local_artificial_block = True; /* have to free it ourselves */ - text.firstPos = 0; - text.length = u_text_p->length; /* _XawTextMBToWC converts this - * to wchar len - */ - - text.ptr = (char*)_XawTextMBToWC(XtDisplay(XtParent(w)), - &u_text_p->ptr[u_text_p->firstPos], - &text.length); - - /* I assert the following assignment is not needed - since Step 4 - depends on length, it has no need of a terminating NULL. I think - the ASCII-version has the same needless NULL. */ - /*((wchar_t*)text.ptr)[ text.length ] = NULL;*/ - } - - /* STEP 2: some initialization... */ - if (src->text_src.edit_mode == XawtextRead) - return (XawEditError); - - start_piece = FindPiece(src, startPos, &start_first); - end_piece = FindPiece(src, endPos, &end_first); - - /* STEP 3: remove the empty pieces... */ - if (start_piece != end_piece) { - temp_piece = start_piece->next; - - /* If empty and not the only piece then remove it */ - if (((start_piece->used = startPos - start_first) == 0) - && !(start_piece->next == NULL && start_piece->prev == NULL)) - RemovePiece(src, start_piece); - - while (temp_piece != end_piece) { - temp_piece = temp_piece->next; - RemovePiece(src, temp_piece->prev); - } - end_piece->used -= endPos - end_first; - if (end_piece->used != 0) - memmove(end_piece->text, end_piece->text + endPos - end_first, - end_piece->used * sizeof(wchar_t)); - } - else { /* We are fully in one piece */ - if ((start_piece->used -= endPos - startPos) == 0) { - if (!(start_piece->next == NULL && start_piece->prev == NULL)) - RemovePiece(src, start_piece); - } - else { - memmove(start_piece->text + (startPos - start_first), - start_piece->text + (endPos - start_first), - (start_piece->used - (startPos - start_first)) * - sizeof(wchar_t)); - if (src->multi_src.use_string_in_place && - ((src->multi_src.length - (endPos - startPos)) - < src->multi_src.piece_size - 1)) - start_piece->text[src->multi_src.length - (endPos - startPos)] = - (wchar_t)0; - } - } - - src->multi_src.length += text.length -(endPos - startPos); - - /* STEP 4: insert the new stuff */ - if ( text.length != 0) { - start_piece = FindPiece(src, startPos, &start_first); - length = text.length; - firstPos = text.firstPos; - - while (length > 0) { - wchar_t *ptr; - int fill; - - if (src->multi_src.use_string_in_place) { - if (start_piece->used == src->multi_src.piece_size - 1) { - - /* - * The string is used in place, then the string - * is not allowed to grow - */ - start_piece->used = src->multi_src.length = - src->multi_src.piece_size - 1; - - start_piece->text[src->multi_src.length] = (wchar_t)0; - return (XawEditError); - } - } - - if (start_piece->used == src->multi_src.piece_size) { - BreakPiece(src, start_piece); - start_piece = FindPiece(src, startPos, &start_first); - } - - fill = Min((int)(src->multi_src.piece_size - start_piece->used), length); - - ptr = start_piece->text + (startPos - start_first); - memmove(ptr + fill, ptr, (start_piece->used - - (startPos - start_first)) * sizeof(wchar_t)); - wptr =(wchar_t *)text.ptr; - (void)wcsncpy(ptr, wptr + firstPos, fill); - - startPos += fill; - firstPos += fill; - start_piece->used += fill; - length -= fill; - } - } - - if (local_artificial_block == True) - /* In other words, text is not the u_text that the user handed me but - one I made myself. I only care, because I need to free the string */ - XtFree(text.ptr); - - if (src->multi_src.use_string_in_place) - start_piece->text[start_piece->used] = (wchar_t)0; - -#ifdef OLDXAW - src->multi_src.changes = True; - XtCallCallbacks(w, XtNcallback, NULL); -#endif - - return (XawEditDone); -} - -/* - * Function: - * Scan - * - * Parameters: - * w - MultiSource widget - * position - position to start scanning - * type - type of thing to scan for - * dir - direction to scan - * count - which occurance if this thing to search for - * include - whether or not to include the character found in - * the position that is returned - * - * Description: - * Scans the text source for the number and type of item specified. - * - * Returns: - * The position of the item found - * - * Note: - * While there are only 'n' characters in the file there are n+1 - * possible cursor positions (one before the first character and - * one after the last character - */ -static XawTextPosition -Scan(Widget w, register XawTextPosition position, XawTextScanType type, - XawTextScanDirection dir, int count, Bool include) -{ - MultiSrcObject src = (MultiSrcObject)w; - register char inc; - MultiPiece *piece; - XawTextPosition first, first_eol_position = position; - register wchar_t *ptr; - int cnt = count; - - if (type == XawstAll) { - if (dir == XawsdRight) - return (src->multi_src.length); - return (0); - } - - /* STEP 1: basic sanity checks */ - if (position > src->multi_src.length) - position = src->multi_src.length; - - if (dir == XawsdRight) { - if (position == src->multi_src.length) - return (src->multi_src.length); - inc = 1; - } - else { - if (position == 0) - return (0); - inc = -1; - position--; - } - - piece = FindPiece(src, position, &first); - - if (piece->used == 0) - return (0); - - ptr = (position - first) + piece->text; - - switch (type) { - case XawstEOL: - case XawstParagraph: - case XawstWhiteSpace: - case XawstAlphaNumeric: - for (; cnt > 0 ; cnt--) { - Bool non_space = False, first_eol = True; - - /*CONSTCOND*/ - while (True) { - register wchar_t c; - - if (ptr < piece->text) { - piece = piece->prev; - if (piece == NULL) /* Begining of text */ - return (0); - ptr = piece->text + piece->used - 1; - c = *ptr; - } - else if (ptr >= piece->text + piece->used) { - piece = piece->next; - if (piece == NULL) /* End of text */ - return (src->multi_src.length); - ptr = piece->text; - } - - c = *ptr; - ptr += inc; - position += inc; - - if (type == XawstAlphaNumeric) { - if (!iswalnum(c)) { - if (non_space) - break; - } - else - non_space = True; - } - else if (type == XawstWhiteSpace) { - if (iswspace(c)) { - if (non_space) - break; - } - else - non_space = True; - } - else if (type == XawstEOL) { - if (c == _Xaw_atowc(XawLF)) - break; - } - else { /* XawstParagraph */ - if (first_eol) { - if (c == _Xaw_atowc(XawLF)) { - first_eol_position = position; - first_eol = False; - } - } - else - if (c == _Xaw_atowc(XawLF)) - break; - else if (!iswspace(c)) - first_eol = True; - } - } - } - if (!include) { - if (type == XawstParagraph) - position = first_eol_position; - if (count) - position -= inc; - } - break; - case XawstPositions: - position += count * inc; - break; - default: - break; - } - - if (dir == XawsdLeft) - position++; - - if (position >= src->multi_src.length) - return (src->multi_src.length); - if (position < 0) - return (0); - - return (position); -} - -/* - * Function: - * Search - * - * Parameters: - * w - MultiSource objecy - * position - position to start scanning - * dir - direction to scan - * text - text block to search for - * - * Description: - * Searchs the text source for the text block passed. - * - * Returns: - * The position of the item found - */ -static XawTextPosition -Search(Widget w, register XawTextPosition position, XawTextScanDirection dir, - XawTextBlock *text) -{ - MultiSrcObject src = (MultiSrcObject)w; - register int count = 0; - wchar_t *ptr; - wchar_t *wtarget; - int wtarget_len; - Display *d = XtDisplay(XtParent(w)); - MultiPiece *piece; - wchar_t *buf; - XawTextPosition first; - register char inc; - int cnt; - - /* STEP 1: First, a brief sanity check */ - if (dir == XawsdRight) - inc = 1; - else { - inc = -1; - if (position == 0) - return (XawTextSearchError); - position--; - } - - /* STEP 2: Ensure I have a local wide string.. */ - - /* Since this widget stores 32bit chars, I check here to see if - I'm being passed a string claiming to be 8bit chars (ie, MB text.) - If that is the case, naturally I convert to 32bit format */ - - /*if the block was FMT8BIT, length will convert to REAL wchar count bellow */ - wtarget_len = text->length; - - if (text->format == XawFmtWide) - wtarget = &(((wchar_t*)text->ptr) [text->firstPos]); - else { - /* The following converts wtarget_len from byte len to wchar count */ - wtarget = _XawTextMBToWC(d, &text->ptr[text->firstPos], &wtarget_len); - } - - /* OK, I can now assert that wtarget holds wide characters, wtarget_len - holds an accurate count of those characters, and that firstPos has been - effectively factored out of the following computations */ - - /* STEP 3: SEARCH! */ - buf = (wchar_t *)XtMalloc(sizeof(wchar_t) * wtarget_len); - (void)wcsncpy(buf, wtarget, wtarget_len); - piece = FindPiece(src, position, &first); - ptr = (position - first) + piece->text; - - /*CONSTCOND*/ - while (True) { - if (*ptr == (dir == XawsdRight ? *(buf + count) - : *(buf + wtarget_len - count - 1))) { - if (count == text->length - 1) - break; - else - count++; - } - else { - if (count != 0) { - position -=inc * count; - ptr -= inc * count; - } - count = 0; - } - - ptr += inc; - position += inc; - - while (ptr < piece->text) { - cnt = piece->text - ptr; - - piece = piece->prev; - if (piece == NULL) { /* Begining of text */ - XtFree((char *)buf); - return (XawTextSearchError); - } - ptr = piece->text + piece->used - cnt; - } - - while (ptr >= piece->text + piece->used) { - cnt = ptr - (piece->text + piece->used); - - piece = piece->next; - if (piece == NULL) { /* End of text */ - XtFree((char *)buf); - return (XawTextSearchError); - } - ptr = piece->text + cnt; - } - } - - XtFree((char *)buf); - if (dir == XawsdLeft) - return(position); - - return(position - (wtarget_len - 1)); -} - -/* - * Function: - * XawMultiSrcSetValues - * - * Parameters: - * current - current state of the widget - * request - what was requested - * cnew - what the widget will become - * args - representation of resources that have changed - * num_args - number of changed resources - * - * Description: - * Sets the values for the MultiSource. - * - * Returns: - * True if redisplay is needed - */ -static Boolean -XawMultiSrcSetValues(Widget current, Widget request, Widget cnew, - ArgList args, Cardinal *num_args) -{ - MultiSrcObject src = (MultiSrcObject)cnew; - MultiSrcObject old_src = (MultiSrcObject)current; - XtAppContext app_con = XtWidgetToApplicationContext(cnew); - Bool total_reset = False, string_set = False; - FILE *file; - unsigned int i; - - if (old_src->multi_src.use_string_in_place - != src->multi_src.use_string_in_place) { - XtAppWarning(app_con, - "MultiSrc: The XtNuseStringInPlace resources " - "may not be changed."); - src->multi_src.use_string_in_place = - old_src->multi_src.use_string_in_place; - } - - for (i = 0; i < *num_args ; i++) - if (streq(args[i].name, XtNstring)) { - string_set = True; - break; - } - - if (string_set || old_src->multi_src.type != src->multi_src.type) { - RemoveOldStringOrFile(old_src, string_set); - src->multi_src.allocated_string = old_src->multi_src.allocated_string; - file = InitStringOrFile(src, string_set); - - LoadPieces(src, file, NULL); - if (file != NULL) - fclose(file); -#ifndef OLDXAW - for (i = 0; i < src->text_src.num_text; i++) - /* Tell text widget what happened */ - XawTextSetSource(src->text_src.text[i], cnew, 0); -#else - XawTextSetSource(XtParent(cnew), cnew, 0); -#endif - total_reset = True; - } - - if (old_src->multi_src.multi_length != src->multi_src.multi_length) - src->multi_src.piece_size = src->multi_src.multi_length + 1; - - if ( !total_reset && old_src->multi_src.piece_size - != src->multi_src.piece_size) { - String mb_string = StorePiecesInString(old_src); - - if (mb_string != 0) { - FreeAllPieces(old_src); - LoadPieces(src, NULL, mb_string); - XtFree(mb_string); - } - else { - /* If the buffer holds bad chars, don't touch it... */ - XtAppWarningMsg(app_con, - "convertError", "multiSource", "XawError", - XtName(XtParent((Widget)old_src)), NULL, NULL); - XtAppWarningMsg(app_con, - "convertError", "multiSource", "XawError", - "Non-character code(s) in buffer.", NULL, NULL); - } - } - - return (False); -} - -static void -XawMultiSrcGetValuesHook(Widget w, ArgList args, Cardinal *num_args) -{ - MultiSrcObject src = (MultiSrcObject)w; - unsigned int i; - - if (src->multi_src.type == XawAsciiString) { - for (i = 0; i < *num_args ; i++) { - if (streq(args[i].name, XtNstring)) { - if (src->multi_src.use_string_in_place) - *((char **)args[i].value) = (char *) - src->multi_src.first_piece->text; - else if (_XawMultiSave(w)) /* If save sucessful */ - *((char **)args[i].value) = (char *)src->multi_src.string; - break; - } - } - } -} - -static void -XawMultiSrcDestroy(Widget w) -{ - RemoveOldStringOrFile((MultiSrcObject) w, True); -} - -/* - * Public routines - */ -/* - * Function: - * XawMultiSourceFreeString - * - * Parameters: - * w - MultiSrc widget - * - * Description: - * Frees the string returned by a get values call - * on the string when the source is of type string. - * - * Note: - * The public interface is XawAsciiSourceFreeString! - */ -void -_XawMultiSourceFreeString(Widget w) -{ - MultiSrcObject src = (MultiSrcObject)w; - - if (src->multi_src.allocated_string) { - XtFree((char *)src->multi_src.string); - src->multi_src.allocated_string = False; - src->multi_src.string = NULL; - } -} - -/* - * Function: - * _XawMultiSave - * - * Parameters: - * w - multiSrc Widget - * - * Description: - * Saves all the pieces into a file or string as required. - * - * Returns: - * True if the save was successful - * - * Note: - * The public interface is XawAsciiSave(w)! - */ -Bool -_XawMultiSave(Widget w) -{ - MultiSrcObject src = (MultiSrcObject)w; - XtAppContext app_con = XtWidgetToApplicationContext(w); - char *mb_string; - - /* - * If using the string in place then there is no need to play games - * to get the internal info into a readable string - */ - if (src->multi_src.use_string_in_place) - return (True); - - if (src->multi_src.type == XawAsciiFile) { -#ifdef OLDXAW - if (!src->multi_src.changes) -#else - if (!src->text_src.changed) /* No changes to save */ -#endif - return (True); - - mb_string = StorePiecesInString(src); - - if (mb_string != 0) { - if (WriteToFile(mb_string, (String)src->multi_src.string) == False) { - XtFree(mb_string); - return (False); - } - XtFree(mb_string); -#ifndef OLDXAW - src->text_src.changed = False; -#else - src->multi_src.changes = False; -#endif - return (True); - } - else { - /* If the buffer holds bad chars, don't touch it... */ - XtAppWarningMsg(app_con, - "convertError", "multiSource", "XawError", - "Due to illegal characters, file not saved.", - NULL, NULL); - return (False); - } - } - else { - /* THIS FUNCTIONALITY IS UNDOCUMENTED, probably UNNEEDED? The manual - says this routine's only function is to save files to - disk. -Sheeran */ - mb_string = StorePiecesInString(src); - - if (mb_string == 0) { - /* If the buffer holds bad chars, don't touch it... */ - XtAppWarningMsg(app_con, - "convertError", "multiSource", "XawError", - XtName(XtParent((Widget)src)), NULL, NULL); - return (False); - } - - /* assert: mb_string holds good characters so the buffer is fine */ - if (src->multi_src.allocated_string == True) - XtFree((char *)src->multi_src.string); - else - src->multi_src.allocated_string = True; - - src->multi_src.string = mb_string; - } -#ifdef OLDXAW - src->multi_src.changes = False; -#else - src->text_src.changed = False; -#endif - - return (True); -} - -/* - * Function: - * XawMultiSaveAsFile - * - * Parameters: - * w - MultiSrc widget - * name - name of the file to save this file into - * - * Description: - * Save the current buffer as a file. - * - * Returns: - * True if the save was sucessful - * - * Note: - * The public interface is XawAsciiSaveAsFile! - */ -Bool -_XawMultiSaveAsFile(Widget w, _Xconst char* name) -{ - MultiSrcObject src = (MultiSrcObject)w; - String mb_string; - Bool ret; - - mb_string = StorePiecesInString(src); - - if (mb_string != 0) { - ret = WriteToFile(mb_string, (char *)name); - XtFree(mb_string); - - return (ret); - } - - /* otherwise there was a conversion error. So print widget name too */ - XtAppWarningMsg(XtWidgetToApplicationContext(w), - "convertError", "multiSource", "XawError", - XtName(XtParent(w)), NULL, NULL); - - return (False); -} - -/* - * Private Functions - */ -static void -RemoveOldStringOrFile(MultiSrcObject src, Bool checkString) -{ - FreeAllPieces(src); - - if (checkString && src->multi_src.allocated_string) { - XtFree((char *)src->multi_src.string); - src->multi_src.allocated_string = False; - src->multi_src.string = NULL; - } -} - -/* - * Function: - * WriteToFile - * - * Parameters: - * string - string to write - * name - name of the file - * - * Description: - * Write the string specified to the begining of the file specified. - * - * Returns: - * Returns True if sucessful, False otherwise - */ -static Bool -WriteToFile(String string, String name) -{ - int fd; - - if (((fd = creat(name, 0666)) == -1) - || (write(fd, string, strlen(string)) == -1)) - return (False); - - if (close(fd) == -1) - return (False); - - return (True); -} - - -/* - * Function: - * StorePiecesInString - * - * Parameters: - * src - the multiSrc object to gather data from - * - * Description: - * Store the pieces in memory into a char string. - * - * Returns: - * mb_string: Caller must free - * (or) - * NULL: conversion error - */ -static String -StorePiecesInString(MultiSrcObject src) -{ - wchar_t *wc_string; - char *mb_string; - int char_count = src->multi_src.length; - XawTextPosition first; - MultiPiece *piece; - - /* I believe the char_count + 1 and the NULL termination are unneeded! FS */ - wc_string = (wchar_t*)XtMalloc((char_count + 1) * sizeof(wchar_t)); - - for (first = 0, piece = src->multi_src.first_piece ; piece != NULL; - first += piece->used, piece = piece->next) - (void)wcsncpy(wc_string + first, piece->text, piece->used); - - wc_string[char_count] = 0; - - /* This will refill all pieces to capacity */ - if (src->multi_src.data_compression) { - FreeAllPieces(src); - LoadPieces(src, NULL, (char *)wc_string); - } - - /* Lastly, convert it to a MB format and send it back */ - mb_string = _XawTextWCToMB(XtDisplayOfObject((Widget)src), - wc_string, &char_count); - - /* NOTE THAT mb_string MAY BE ZERO IF THE CONVERSION FAILED */ - XtFree((char*)wc_string); - - return (mb_string); -} - -/* - * Function: - * InitStringOrFile - * - * Parameters: - * src - MultiSource - * - * Description: - * Initializes the string or file. - */ -static FILE * -InitStringOrFile(MultiSrcObject src, Bool newString) -{ - mode_t open_mode = 0; - const char *fdopen_mode = NULL; - int fd; - FILE *file; - Display *d = XtDisplayOfObject((Widget)src); - - if (src->multi_src.type == XawAsciiString) { - if (src->multi_src.string == NULL) - src->multi_src.length = 0; - - else if (!src->multi_src.use_string_in_place) { - int length; - String temp = XtNewString((char *)src->multi_src.string); - - if (src->multi_src.allocated_string) - XtFree((char *)src->multi_src.string); - src->multi_src.allocated_string = True; - src->multi_src.string = temp; - - length = strlen((char *)src->multi_src.string); - - /* Wasteful, throwing away the WC string, but need side effect! */ - (void)_XawTextMBToWC(d, (char *)src->multi_src.string, &length); - src->multi_src.length = (XawTextPosition)length; - } - else { - src->multi_src.length = strlen((char *)src->multi_src.string); - /* In case the length resource is incorrectly set */ - if (src->multi_src.length > src->multi_src.multi_length) - src->multi_src.multi_length = src->multi_src.length; - - if (src->multi_src.multi_length == MAGIC_VALUE) - src->multi_src.piece_size = src->multi_src.length; - else - src->multi_src.piece_size = src->multi_src.multi_length + 1; - } - - return (NULL); - } - - /* - * type is XawAsciiFile - */ - src->multi_src.is_tempfile = False; - - switch (src->text_src.edit_mode) { - case XawtextRead: - if (src->multi_src.string == NULL) - XtErrorMsg("NoFile", "multiSourceCreate", "XawError", - "Creating a read only disk widget and no file specified.", - NULL, 0); - open_mode = O_RDONLY; - fdopen_mode = "r"; - break; - case XawtextAppend: - case XawtextEdit: - if (src->multi_src.string == NULL) { - src->multi_src.string = "*multi-src*"; - src->multi_src.is_tempfile = True; - } - else { -/* O_NOFOLLOW is a BSD & Linux extension */ -#ifdef O_NOFOLLOW - open_mode = O_RDWR | O_NOFOLLOW; -#else - open_mode = O_RDWR; /* unsafe; subject to race conditions */ -#endif - fdopen_mode = "r+"; - } - break; - default: - XtErrorMsg("badMode", "multiSourceCreate", "XawError", - "Bad editMode for multi source; must be " - "Read, Append or Edit.", NULL, NULL); - } - - /* If is_tempfile, allocate a private copy of the text - * Unlikely to be changed, just to set allocated_string */ - if (newString || src->multi_src.is_tempfile) { - String temp = XtNewString((char *)src->multi_src.string); - - if (src->multi_src.allocated_string) - XtFree((char *)src->multi_src.string); - src->multi_src.string = temp; - src->multi_src.allocated_string = True; - } - - if (!src->multi_src.is_tempfile) { - if ((fd = open((char *)src->multi_src.string, open_mode, 0666)) != -1) { - if ((file = fdopen(fd, fdopen_mode)) != NULL) { - (void)fseek(file, 0, SEEK_END); - src->multi_src.length = (XawTextPosition)ftell(file); - return(file); - } - } - { - String params[2]; - Cardinal num_params = 2; - - params[0] = (String)src->multi_src.string; - params[1] = strerror(errno); - XtAppWarningMsg(XtWidgetToApplicationContext((Widget)src), - "openError", "multiSourceCreate", "XawWarning", - "Cannot open file %s; %s", params, &num_params); - } - } - src->multi_src.length = 0; - return (NULL); -} - -/* LoadPieces: This routine takes either the MB contents of open file - `file' or the MB contents of string or the MB contents of - src->multi_src.string and places them in Pieces in WC format. - - CAUTION: You must have src->multi_src.length set to file length bytes - when src->multi_src.type == XawAsciiFile. src->multi_src.length must be - the length of the parameter string if string is non-NULL -*/ -static void -LoadPieces(MultiSrcObject src, FILE *file, char *string) -{ - Display *d = XtDisplayOfObject((Widget)src); - wchar_t* local_str, *ptr; - MultiPiece* piece = NULL; - XawTextPosition left; - int bytes = sizeof(wchar_t); - char* temp_mb_holder = NULL; - - /* - * This is tricky - the _XawTextMBtoWC converter uses its 3rd arg - * in as MB length, out as WC length. We want local_length to be - * WC count. - */ - int local_length = src->multi_src.length; - - if (string != NULL) { - /* - * ASSERT: IF our caller passed a non-null string, THEN - * src->multi_src.length is currently string's * byte count, - * AND string is in a MB format - */ - local_str = _XawTextMBToWC(d, (char *)string, &local_length); - src->multi_src.length = (XawTextPosition) local_length; - } - else if (src->multi_src.type != XawAsciiFile) { - /* - * here, we are not changing the contents, just reloading, - * so don't change len... - */ - local_length = src->multi_src.string ? - strlen((char *)src->multi_src.string) : 0; - local_str = _XawTextMBToWC(d, (char *)src->multi_src.string, - &local_length); - } - else { - if (src->multi_src.length != 0) { - temp_mb_holder = - XtMalloc((src->multi_src.length + 1) * sizeof(unsigned char)); - fseek(file, 0, 0); - src->multi_src.length = fread(temp_mb_holder, - (Size_t)sizeof(unsigned char), - (Size_t)src->multi_src.length, file); - if (src->multi_src.length <= 0) - XtAppErrorMsg(XtWidgetToApplicationContext ((Widget) src), - "readError", "multiSource", "XawError", - "fread returned error.", NULL, NULL); - local_length = src->multi_src.length; - local_str = _XawTextMBToWC(d, temp_mb_holder, &local_length); - src->multi_src.length = local_length; - - if (local_str == 0) { - String params[2]; - Cardinal num_params; - static char err_text[] = - "<<< FILE CONTENTS NOT REPRESENTABLE IN THIS LOCALE >>>"; - - params[0] = XtName(XtParent((Widget)src)); - params[1] = src->multi_src.string; - num_params = 2; - - XtAppWarningMsg(XtWidgetToApplicationContext((Widget)src), - "readLocaleError", "multiSource", "XawError", - "%s: The file `%s' contains characters " - "not representable in this locale.", - params, &num_params); - src->multi_src.length = sizeof err_text; - local_length = src->multi_src.length; - local_str = _XawTextMBToWC(d, err_text, &local_length); - src->multi_src.length = local_length; - } - } - else - /* ASSERT that since following while loop looks at local_length - this isn't needed. Sheeran, Omron KK, 1993/07/15 - temp_mb_holder[src->multi_src.length] = '\0'; */ - local_str = (wchar_t*)temp_mb_holder; - } - - if (src->multi_src.use_string_in_place) { - piece = AllocNewPiece(src, piece); - piece->used = Min(src->multi_src.length, src->multi_src.piece_size); - piece->text = (wchar_t*)src->multi_src.string; - return; - } - - ptr = local_str; - left = local_length; - - do { - piece = AllocNewPiece(src, piece); - - piece->text = (wchar_t*)XtMalloc((unsigned)(src->multi_src.piece_size - * bytes)); - piece->used = Min(left, src->multi_src.piece_size); - if (piece->used != 0) - (void)wcsncpy(piece->text, ptr, piece->used); - - left -= piece->used; - ptr += piece->used; - } while (left > 0); - - if (temp_mb_holder) - XtFree((char*)temp_mb_holder); -} - -/* - * Function: - * AllocNewPiece - * - * Parameters: - * src - MultiSrc Widget - * prev - the piece just before this one, or NULL - * - * Description: - * Allocates a new piece of memory. - * - * Returns: - * The allocated piece - */ -static MultiPiece * -AllocNewPiece(MultiSrcObject src, MultiPiece *prev) -{ - MultiPiece *piece = XtNew(MultiPiece); - - if (prev == NULL) { - src->multi_src.first_piece = piece; - piece->next = NULL; - } - else { - if (prev->next != NULL) - (prev->next)->prev = piece; - piece->next = prev->next; - prev->next = piece; - } - - piece->prev = prev; - - return (piece); -} - -/* - * Function: - * FreeAllPieces - * - * Parameters: - * src - MultiSrc Widget - * - * Description: - * Frees all the pieces - */ -static void -FreeAllPieces(MultiSrcObject src) -{ - MultiPiece *next, *first = src->multi_src.first_piece; - -#ifdef DEBUG - if (first->prev != NULL) - printf("Xaw MultiSrc Object: possible memory leak in FreeAllPieces().\n"); -#endif - - for (; first != NULL ; first = next) { - next = first->next; - RemovePiece(src, first); - } -} - -/* - * Function: - * RemovePiece - * - * Parameters: - * piece - piece to remove - * - * Description: - * Removes a piece from the list. - */ -static void -RemovePiece(MultiSrcObject src, MultiPiece *piece) -{ - if (piece->prev == NULL) - src->multi_src.first_piece = piece->next; - else - piece->prev->next = piece->next; - - if (piece->next != NULL) - piece->next->prev = piece->prev; - - if (!src->multi_src.use_string_in_place) - XtFree((char *)piece->text); - - XtFree((char *)piece); -} - -/* - * Function: - * FindPiece - * - * Parameters: - * src - MultiSrc Widget - * position - position that we are searching for - * first - position of the first character in this piece (return) - * - * Description: - * Finds the piece containing the position indicated. - * - * Returns: - * Piece that contains this position - */ -static MultiPiece * -FindPiece(MultiSrcObject src, XawTextPosition position, XawTextPosition *first) -{ - MultiPiece *old_piece, *piece; - XawTextPosition temp; - - for (old_piece = NULL, piece = src->multi_src.first_piece, temp = 0; - piece; old_piece = piece, piece = piece->next) - if ((temp += piece->used) > position) { - *first = temp - piece->used; - return (piece); - } - - *first = temp - (old_piece ? old_piece->used : 0); - - return (old_piece); /* if we run off the end the return the last piece */ -} - -/* - * Function: - * BreakPiece - * - * Parameters: - * src - MultiSrc Widget - * piece - piece to break - * - * Description: - * Breaks a full piece into two new pieces. - */ -#define HALF_PIECE (src->multi_src.piece_size >> 1) -static void -BreakPiece(MultiSrcObject src, MultiPiece *piece) -{ - MultiPiece *cnew = AllocNewPiece(src, piece); - - cnew->text = (wchar_t *) - XtMalloc(src->multi_src.piece_size * sizeof(wchar_t)); - (void)wcsncpy(cnew->text, piece->text + HALF_PIECE, - src->multi_src.piece_size - HALF_PIECE); - piece->used = HALF_PIECE; - cnew->used = src->multi_src.piece_size - HALF_PIECE; -} - -/*ARGSUSED*/ -static void -CvtStringToMultiType(XrmValuePtr args, Cardinal *num_args, - XrmValuePtr fromVal, XrmValuePtr toVal) -{ - static XawAsciiType type = XawAsciiString; - XrmQuark q; - char name[7]; - - XmuNCopyISOLatin1Lowered(name, (char *)fromVal->addr, sizeof(name)); - q = XrmStringToQuark(name); - - if (q == Qstring) - type = XawAsciiString; - if (q == Qfile) - type = XawAsciiFile; - else { - toVal->size = 0; - toVal->addr = NULL; - XtStringConversionWarning((char *)fromVal->addr, XtRAsciiType); - } - - toVal->size = sizeof(XawAsciiType); - toVal->addr = (XPointer)&type; -} - -/*ARGSUSED*/ -static Boolean -CvtMultiTypeToString(Display *dpy, XrmValuePtr args, Cardinal *num_args, - XrmValuePtr fromVal, XrmValuePtr toVal, - XtPointer *data) -{ - static String buffer; - Cardinal size; - - switch (*(XawAsciiType *)fromVal->addr) { - case XawAsciiFile: - buffer = XtEfile; - break; - case XawAsciiString: - buffer = XtEstring; - break; - default: - XawTypeToStringWarning(dpy, XtRAsciiType); - toVal->addr = NULL; - toVal->size = 0; - return (False); - } - - size = strlen(buffer) + 1; - if (toVal->addr != NULL) { - if (toVal->size < size) { - toVal->size = size; - return (False); - } - strcpy((char *)toVal->addr, buffer); - } - else - toVal->addr = (XPointer)buffer; - toVal->size = sizeof(String); - - return (True); -} - -/*ARGSUSED*/ -static void -GetDefaultPieceSize(Widget w, int offset, XrmValue *value) -{ - static XPointer pagesize; - - if (pagesize == 0) { - pagesize = (XPointer)((long)_XawGetPageSize()); - if (pagesize < (XPointer)BUFSIZ) - pagesize = (XPointer)BUFSIZ; - } - - value->addr = (XPointer)&pagesize; -} |