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-rw-r--r--libXaw/src/MultiSink.c1950
1 files changed, 975 insertions, 975 deletions
diff --git a/libXaw/src/MultiSink.c b/libXaw/src/MultiSink.c
index 129624e01..39c7da212 100644
--- a/libXaw/src/MultiSink.c
+++ b/libXaw/src/MultiSink.c
@@ -1,975 +1,975 @@
-/*
- * 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 of 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.
- *
- * Author: Li Yuhong OMRON Corporation
- */
-
-/***********************************************************
-
-Copyright 1987, 1988, 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.
-
-
-Copyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts.
-
- All Rights Reserved
-
-Permission to use, copy, modify, and distribute this software and its
-documentation for any purpose and without fee is hereby granted,
-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 of Digital not be
-used in advertising or publicity pertaining to distribution of the
-software without specific, written prior permission.
-
-DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
-ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
-DIGITAL 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 TORTIOUS ACTION,
-ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
-SOFTWARE.
-
-******************************************************************/
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-#include <X11/IntrinsicP.h>
-#include <X11/StringDefs.h>
-#include <X11/Xatom.h>
-#include <X11/Xaw/XawInit.h>
-#include <X11/Xaw/MultiSinkP.h>
-#include <X11/Xaw/MultiSrcP.h>
-#include <X11/Xaw/TextP.h>
-#include "XawI18n.h"
-#include <stdio.h>
-#include <ctype.h>
-#include "Private.h"
-
-#ifdef GETLASTPOS
-#undef GETLASTPOS /* We will use our own GETLASTPOS */
-#endif
-
-#define GETLASTPOS \
- XawTextSourceScan(source, 0, XawstAll, XawsdRight, 1, True)
-
-/*
- * Class Methods
- */
-static void XawMultiSinkClassInitialize(void);
-static void XawMultiSinkInitialize(Widget, Widget, ArgList, Cardinal*);
-static void XawMultiSinkDestroy(Widget);
-static void XawMultiSinkResize(Widget);
-static Boolean XawMultiSinkSetValues(Widget, Widget, Widget,
- ArgList, Cardinal*);
-static int MaxLines(Widget, unsigned int);
-static int MaxHeight(Widget, int);
-static void SetTabs(Widget, int, short*);
-static void DisplayText(Widget, int, int,
- XawTextPosition, XawTextPosition, Bool);
-static void InsertCursor(Widget, int, int, XawTextInsertState);
-static void FindPosition(Widget, XawTextPosition, int, int, Bool,
- XawTextPosition*, int*, int*);
-static void FindDistance(Widget, XawTextPosition, int, XawTextPosition, int*,
- XawTextPosition*, int*);
-static void Resolve(Widget, XawTextPosition, int, int, XawTextPosition*);
-static void GetCursorBounds(Widget, XRectangle*);
-
-/*
- * Prototypes
- */
-static void GetGC(MultiSinkObject);
-static int CharWidth(MultiSinkObject, XFontSet, int, wchar_t);
-static unsigned int PaintText(Widget w, GC gc, int x, int y,
- wchar_t *buf, int len, Bool);
-
-/*
- * Defined in TextSink.c
- */
-void _XawTextSinkClearToBackground(Widget, int, int, unsigned, unsigned);
-
-/*
- * Initialization
- */
-static wchar_t wspace[2];
-
-#define offset(field) XtOffsetOf(MultiSinkRec, multi_sink.field)
-static XtResource resources[] = {
- {
- XtNfontSet,
- XtCFontSet,
- XtRFontSet,
- sizeof(XFontSet),
- offset(fontset),
- XtRString,
- XtDefaultFontSet
- },
- {
- XtNecho,
- XtCOutput,
- XtRBoolean,
- sizeof(Boolean),
- offset(echo),
- XtRImmediate,
- (XtPointer)True
- },
- {
- XtNdisplayNonprinting,
- XtCOutput,
- XtRBoolean,
- sizeof(Boolean),
- offset(display_nonprinting),
- XtRImmediate,
- (XtPointer)True
- },
-};
-#undef offset
-
-#define SuperClass (&textSinkClassRec)
-MultiSinkClassRec multiSinkClassRec = {
- /* object */
- {
- (WidgetClass)SuperClass, /* superclass */
- "MultiSink", /* class_name */
- sizeof(MultiSinkRec), /* widget_size */
- XawMultiSinkClassInitialize, /* class_initialize */
- NULL, /* class_part_initialize */
- False, /* class_inited */
- XawMultiSinkInitialize, /* 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 */
- XawMultiSinkDestroy, /* destroy */
- (XtProc)XawMultiSinkResize, /* obj8 */
- NULL, /* obj9 */
- XawMultiSinkSetValues, /* set_values */
- NULL, /* set_values_hook */
- NULL, /* obj10 */
- NULL, /* get_values_hook */
- NULL, /* obj11 */
- XtVersion, /* version */
- NULL, /* callback_private */
- NULL, /* obj12 */
- NULL, /* obj13 */
- NULL, /* obj14 */
- NULL, /* extension */
- },
- /* text_sink */
- {
- DisplayText, /* DisplayText */
- InsertCursor, /* InsertCursor */
- XtInheritClearToBackground, /* ClearToBackground */
- FindPosition, /* FindPosition */
- FindDistance, /* FindDistance */
- Resolve, /* Resolve */
- MaxLines, /* MaxLines */
- MaxHeight, /* MaxHeight */
- SetTabs, /* SetTabs */
- GetCursorBounds, /* GetCursorBounds */
- },
- /* multi_sink */
- {
- NULL, /* extension */
- }
-};
-
-WidgetClass multiSinkObjectClass = (WidgetClass)&multiSinkClassRec;
-
-/*
- * Implementation
- */
-static int
-CharWidth(MultiSinkObject sink, XFontSet fontset, int x, wchar_t c)
-{
- int width = 0;
-
- if (c == _Xaw_atowc(XawLF))
- return (0);
-
- if (c == _Xaw_atowc(XawTAB)) {
- int i;
- Position *tab;
-
- width = x;
- /* Adjust for Left Margin. */
- x -= ((TextWidget)XtParent((Widget)sink))->text.left_margin;
-
- i = 0;
- tab = sink->text_sink.tabs;
- /*CONSTCOND*/
- while (1) {
- if (x < *tab)
- return (*tab - x);
- /* Start again */
- if (++i >= sink->text_sink.tab_count) {
- x -= *tab;
- i = 0;
- tab = sink->text_sink.tabs;
- if (width == x)
- return (0);
- }
- else
- ++tab;
- }
- /*NOTREACHED*/
- }
-
- if (XwcTextEscapement(fontset, &c, 1) == 0) {
- if (sink->multi_sink.display_nonprinting)
- c = _Xaw_atowc('@');
- else
- c = _Xaw_atowc(XawSP);
- }
-
- /*
- * if more efficiency(suppose one column is one ASCII char)
-
- width = XwcGetColumn(fontset->font_charset, fontset->num_of_fonts, c) *
- fontset->font_struct_list[0]->min_bounds.width;
- *
- * WARNING: Very Slower!!!
- *
- * Li Yuhong.
- */
-
- width = XwcTextEscapement(fontset, &c, 1);
-
- return (width);
-}
-
-/*
- * Function:
- * PaintText
- *
- * Parameters:
- * w - text sink object
- * gc - gc to paint text
- * x - location to paint the text
- * y - ""
- * buf - buffer and length of text to paint
- * len - ""
- * clear_bg - clear background before drawing ?
- *
- * Description:
- * Actually paints the text into the window.
- *
- * Returns:
- * The width of the text painted
- */
-static unsigned int
-PaintText(Widget w, GC gc, int x, int y, wchar_t *buf, int len, Bool clear_bg)
-{
- MultiSinkObject sink = (MultiSinkObject)w;
- TextWidget ctx = (TextWidget)XtParent(w);
- XFontSet fontset = sink->multi_sink.fontset;
- unsigned int width = XwcTextEscapement(fontset, buf, len);
-
- if (((int)width) <= -x) /* Don't draw if we can't see it */
- return (width);
-
- if (clear_bg) {
- XFontSetExtents *ext = XExtentsOfFontSet(fontset);
-
- _XawTextSinkClearToBackground(w, x, y - abs(ext->max_logical_extent.y),
- width, ext->max_logical_extent.height);
- XwcDrawString(XtDisplay(ctx), XtWindow(ctx), fontset, gc, x, y, buf, len);
- }
- else
- XwcDrawImageString(XtDisplay(ctx), XtWindow(ctx), fontset, gc,
- x, y, buf, len);
-
- return (width);
-}
-
-/* Sink Object Functions */
-/*
- * This function does not know about drawing more than one line of text
- */
-static void
-DisplayText(Widget w, int x, int y,
- XawTextPosition pos1, XawTextPosition pos2, Bool highlight)
-{
- TextWidget ctx = (TextWidget)XtParent(w);
- MultiSinkObject sink = (MultiSinkObject)w;
- XFontSet fontset = sink->multi_sink.fontset;
- Widget source = XawTextGetSource(XtParent(w));
- wchar_t buf[256];
- XFontSetExtents *ext = XExtentsOfFontSet(fontset);
- int j, k;
- XawTextBlock blk;
- GC gc, invgc, tabgc;
- int max_x;
- Bool clear_bg;
-
- if (!sink->multi_sink.echo || !ctx->text.lt.lines)
- return;
-
- max_x = (int)XtWidth(ctx) - ctx->text.r_margin.right;
- clear_bg = !highlight && ctx->core.background_pixmap != XtUnspecifiedPixmap;
-
- gc = highlight ? sink->multi_sink.invgc : sink->multi_sink.normgc;
- invgc = highlight ? sink->multi_sink.normgc : sink->multi_sink.invgc;
-
- if (highlight && sink->multi_sink.xorgc)
- tabgc = sink->multi_sink.xorgc;
- else
- tabgc = invgc;
-
- y += abs(ext->max_logical_extent.y);
- for (j = 0; pos1 < pos2;) {
- pos1 = XawTextSourceRead(source, pos1, &blk, (int) pos2 - pos1);
- for (k = 0; k < blk.length; k++) {
- if ((unsigned) j >= (sizeof(buf) / sizeof(wchar_t)) - 1) {
- /* buffer full, dump the text */
- if ((x += PaintText(w, gc, x, y, buf, j, clear_bg)) >= max_x)
- return;
- j = 0;
- }
- buf[j] = ((wchar_t *)blk.ptr)[k];
- if (buf[j] == _Xaw_atowc(XawLF))
- continue;
-
- else if (buf[j] == _Xaw_atowc(XawTAB)) {
- unsigned int width;
-
- if (j != 0 &&
- (x += PaintText(w, gc, x, y, buf, j, clear_bg)) >= max_x)
- return;
-
- width = CharWidth(sink, fontset, x, _Xaw_atowc(XawTAB));
- if (clear_bg)
- _XawTextSinkClearToBackground(w,
- x, y - abs(ext->max_logical_extent.y),
- width, ext->max_logical_extent.height);
- else
- XFillRectangle(XtDisplayOfObject(w), XtWindowOfObject(w),
- tabgc, x,
- y - abs(ext->max_logical_extent.y),
- width,
- ext->max_logical_extent.height);
- x += width;
- j = -1;
- }
- else if (XwcTextEscapement(sink->multi_sink.fontset, &buf[j], 1)
- == 0) {
- if (sink->multi_sink.display_nonprinting)
- buf[j] = _Xaw_atowc('@');
- else
- buf[j] = _Xaw_atowc(XawSP);
- }
- j++;
- }
- }
-
- if (j > 0)
- (void)PaintText(w, gc, x, y, buf, j, clear_bg);
-}
-
-/*
- * Function:
- * GetCursorBounds
- *
- * Parameters:
- * w - text sink object
- * rect - X rectangle to return the cursor bounds
- *
- * Description:
- * Returns the size and location of the cursor.
- */
-static void
-GetCursorBounds(Widget w, XRectangle *rect)
-{
- MultiSinkObject sink = (MultiSinkObject)w;
-
- rect->width = CharWidth(sink, sink->multi_sink.fontset, 0, _Xaw_atowc(XawSP));
- rect->height = (XExtentsOfFontSet(sink->multi_sink.fontset)
- ->max_logical_extent.height);
- rect->x = sink->multi_sink.cursor_x;
- rect->y = sink->multi_sink.cursor_y - (short)rect->height;
-}
-
-/*
- * The following procedure manages the "insert" cursor
- */
-static void
-InsertCursor(Widget w, int x, int y, XawTextInsertState state)
-{
- MultiSinkObject sink = (MultiSinkObject)w;
- XFontSet fontset = sink->multi_sink.fontset;
- Widget ctx = XtParent(w);
- XawTextPosition position = XawTextGetInsertionPoint(ctx);
-
- if (XtIsRealized(ctx)) {
- int fheight, fdiff;
- XawTextBlock block;
- wchar_t c;
- XawTextPosition selection_start, selection_end;
- Boolean has_selection;
- XFontSetExtents *ext = XExtentsOfFontSet(fontset);
-
- XawTextGetSelectionPos((Widget)ctx, &selection_start, &selection_end);
- has_selection = selection_start != selection_end;
-
- fheight = ext->max_logical_extent.height;
- fdiff = fheight - abs(ext->max_logical_extent.y);
-
- if ((sink->multi_sink.cursor_position != position || state == XawisOff)
- && !has_selection && sink->multi_sink.laststate != XawisOff) {
- wchar_t *ochar;
-
- (void)XawTextSourceRead(XawTextGetSource(ctx),
- sink->multi_sink.cursor_position,
- &block, 1);
- if (!block.length)
- ochar = NULL;
- else {
- c = ((wchar_t *)block.ptr)[0];
- if (c == _Xaw_atowc(XawLF))
- ochar = NULL;
- else if (c == _Xaw_atowc(XawTAB))
- ochar = wspace;
- else
- ochar = (wchar_t *)block.ptr;
- }
-
- if (!ochar)
- _XawTextSinkClearToBackground(w, sink->multi_sink.cursor_x,
- (sink->multi_sink.cursor_y - 1 -
- fheight), CharWidth(sink, fontset,
- 0, wspace[0]),
- fheight);
- else {
- if (XwcTextEscapement(sink->multi_sink.fontset, ochar, 1) != 0)
- DisplayText(w, sink->multi_sink.cursor_x,
- sink->multi_sink.cursor_y - 1 - fheight,
- sink->multi_sink.cursor_position,
- sink->multi_sink.cursor_position + 1,
- False);
- else
- PaintText(w, sink->multi_sink.normgc,
- sink->multi_sink.cursor_x,
- sink->multi_sink.cursor_y - 1 - fdiff,
- ochar, 1,
- ctx->core.background_pixmap != XtUnspecifiedPixmap);
- }
- }
-
- if (!has_selection && state != XawisOff) {
- wchar_t *nchar;
- Boolean focus = ((TextWidget)ctx)->text.hasfocus;
-
- (void)XawTextSourceRead(XawTextGetSource(ctx),
- position, &block, 1);
- c = ((wchar_t *)block.ptr)[0];
- if (!block.length || c == _Xaw_atowc(XawLF)
- || c == _Xaw_atowc(XawTAB))
- nchar = wspace;
- else
- nchar = (wchar_t *)block.ptr;
-
- if (focus) {
- if (XwcTextEscapement(sink->multi_sink.fontset, nchar, 1) != 0)
- XwcDrawImageString(XtDisplay(ctx), XtWindow(ctx),
- fontset, sink->multi_sink.invgc,
- x, (y - 1 - fdiff), nchar, 1);
- else
- DisplayText(w, x, y - 1 - fheight,
- position, position + 1, True);
- }
- else
- XDrawRectangle(XtDisplay(ctx), XtWindow(ctx),
- sink->multi_sink.xorgc ?
- sink->multi_sink.xorgc : sink->multi_sink.normgc,
- x, y - 1 - fheight,
- CharWidth(sink, fontset, 0, *nchar) - 1,
- fheight - 1);
- }
- }
-
- sink->multi_sink.cursor_x = x;
- sink->multi_sink.cursor_y = y;
- sink->multi_sink.laststate = state;
- sink->multi_sink.cursor_position = position;
-}
-
-/*
- * Given two positions, find the distance between them
- */
-static void
-FindDistance(Widget w, XawTextPosition fromPos, int fromx,
- XawTextPosition toPos, int *resWidth,
- XawTextPosition *resPos, int *resHeight)
-{
- MultiSinkObject sink = (MultiSinkObject)w;
- XFontSet fontset = sink->multi_sink.fontset;
- TextWidget ctx = (TextWidget)XtParent(w);
- Widget source = ctx->text.source;
- XawTextPosition idx, pos;
- wchar_t c;
- XFontSetExtents *ext = XExtentsOfFontSet(fontset);
- XawTextBlock blk;
- int i, rWidth;
-
- pos = XawTextSourceRead(source, fromPos, &blk, toPos - fromPos);
- rWidth = 0;
- for (i = 0, idx = fromPos; idx < toPos; i++, idx++) {
- if (i >= blk.length) {
- i = 0;
- XawTextSourceRead(source, pos, &blk, toPos - pos);
- if (blk.length == 0)
- break;
- }
- c = ((wchar_t *)blk.ptr)[i];
- rWidth += CharWidth(sink, fontset, fromx + rWidth, c);
- if (c == _Xaw_atowc(XawLF)) {
- idx++;
- break;
- }
- }
-
- *resPos = idx;
- *resWidth = rWidth;
- *resHeight = ext->max_logical_extent.height;
-}
-
-static void
-FindPosition(Widget w, XawTextPosition fromPos, int fromx, int width,
- Bool stopAtWordBreak, XawTextPosition *resPos, int *resWidth,
- int *resHeight)
-{
- MultiSinkObject sink = (MultiSinkObject)w;
- TextWidget ctx = (TextWidget)XtParent(w);
- Widget source = ctx->text.source;
- XFontSet fontset = sink->multi_sink.fontset;
- XawTextPosition idx, pos, whiteSpacePosition = 0;
- int i, lastWidth, whiteSpaceWidth, rWidth;
- Boolean whiteSpaceSeen;
- wchar_t c;
- XFontSetExtents *ext = XExtentsOfFontSet(fontset);
- XawTextBlock blk;
-
- pos = XawTextSourceRead(source, fromPos, &blk, BUFSIZ);
- rWidth = lastWidth = whiteSpaceWidth = 0;
- whiteSpaceSeen = False;
- c = 0;
-
- for (i = 0, idx = fromPos; rWidth <= width; i++, idx++) {
- if (i >= blk.length) {
- i = 0;
- pos = XawTextSourceRead(source, pos, &blk, BUFSIZ);
- if (blk.length == 0)
- break;
- }
- c = ((wchar_t *)blk.ptr)[i];
- lastWidth = rWidth;
- rWidth += CharWidth(sink, fontset, fromx + rWidth, c);
-
- if (c == _Xaw_atowc(XawLF)) {
- idx++;
- break;
- }
- else if ((c == _Xaw_atowc(XawSP) || c == _Xaw_atowc(XawTAB))
- && rWidth <= width) {
- whiteSpaceSeen = True;
- whiteSpacePosition = idx;
- whiteSpaceWidth = rWidth;
- }
- }
-
- if (rWidth > width && idx > fromPos) {
- idx--;
- rWidth = lastWidth;
- if (stopAtWordBreak && whiteSpaceSeen) {
- idx = whiteSpacePosition + 1;
- rWidth = whiteSpaceWidth;
- }
- }
-
- if (idx >= ctx->text.lastPos && c != _Xaw_atowc(XawLF))
- idx = ctx->text.lastPos + 1;
-
- *resPos = idx;
- *resWidth = rWidth;
- *resHeight = ext->max_logical_extent.height;
-}
-
-static void
-Resolve(Widget w, XawTextPosition pos, int fromx, int width,
- XawTextPosition *pos_return)
-{
- int resWidth, resHeight;
- Widget source = XawTextGetSource(XtParent(w));
-
- FindPosition(w, pos, fromx, width, False, pos_return, &resWidth, &resHeight);
- if (*pos_return > GETLASTPOS)
- *pos_return = GETLASTPOS;
-}
-
-static void
-GetGC(MultiSinkObject sink)
-{
- XtGCMask valuemask = (GCGraphicsExposures | GCClipXOrigin |
- GCForeground | GCBackground);
- XGCValues values;
-
- /* XXX We dont want do share a gc that will change the clip-mask */
- values.clip_x_origin = (long)sink;
- values.clip_mask = None;
- values.graphics_exposures = False;
-
- values.foreground = sink->text_sink.foreground;
- values.background = sink->text_sink.background;
-
- sink->multi_sink.normgc = XtAllocateGC((Widget)sink, 0, valuemask, &values,
- GCFont | GCClipMask, 0);
-
- values.foreground = sink->text_sink.background;
-#ifndef OLDXAW
- values.background = sink->text_sink.cursor_color;
-#else
- values.background = sink->text_sink.foreground;
-#endif
- sink->multi_sink.invgc = XtAllocateGC((Widget)sink, 0, valuemask, &values,
- GCFont | GCClipMask, 0);
-#ifndef OLDXAW
- if (sink->text_sink.cursor_color != sink->text_sink.foreground) {
- values.foreground = sink->text_sink.cursor_color;
- values.background = sink->text_sink.foreground;
- sink->multi_sink.xorgc = XtAllocateGC((Widget)sink, 0, valuemask,
- &values, GCFont | GCClipMask, 0);
- }
- else
-#endif /* OLDXAW */
- sink->multi_sink.xorgc = NULL;
-
- XawMultiSinkResize((Widget)sink);
-}
-
-static void
-XawMultiSinkClassInitialize(void)
-{
- wspace[0] = _Xaw_atowc(XawSP);
- XawInitializeWidgetSet();
-}
-
-/*
- * Function:
- * XawMultiSinkInitialize
- *
- * Parameters:
- * request - requested and new values for the object instance
- * cnew - ""
- *
- * Description:
- * Initializes the TextSink Object.
- */
-/* ARGSUSED */
-static void
-XawMultiSinkInitialize(Widget request, Widget cnew,
- ArgList args, Cardinal *num_args)
-{
- MultiSinkObject sink = (MultiSinkObject)cnew;
-
- GetGC(sink);
-
- if (!sink->multi_sink.fontset) XtError("Aborting: no fontset found\n");
-
- sink->multi_sink.cursor_position = 0;
- sink->multi_sink.laststate = XawisOff;
- sink->multi_sink.cursor_x = sink->multi_sink.cursor_y = 0;
-}
-
-/*
- * Function:
- * XawMultiSinkDestroy
- *
- * Parameters:
- * w - MultiSink Object
- *
- * Description:
- * This function cleans up when the object is destroyed.
- */
-static void
-XawMultiSinkDestroy(Widget w)
-{
- MultiSinkObject sink = (MultiSinkObject)w;
-
- XtReleaseGC(w, sink->multi_sink.normgc);
- XtReleaseGC(w, sink->multi_sink.invgc);
- if (sink->multi_sink.xorgc)
- XtReleaseGC(w, sink->multi_sink.xorgc);
- sink->multi_sink.normgc =
- sink->multi_sink.invgc =
- sink->multi_sink.xorgc = NULL;
-}
-
-static void
-XawMultiSinkResize(Widget w)
-{
- TextWidget ctx = (TextWidget)XtParent(w);
- MultiSinkObject sink = (MultiSinkObject)w;
- XRectangle rect;
- int width, height;
-
- if (w->core.widget_class != multiSinkObjectClass)
- return;
-
- rect.x = ctx->text.r_margin.left;
- rect.y = ctx->text.r_margin.top;
- width = (int)XtWidth(ctx) -
- (int)ctx->text.r_margin.right - (int)ctx->text.r_margin.left;
- height = (int)XtHeight(ctx) -
- (int)ctx->text.r_margin.top - (int)ctx->text.r_margin.bottom;
- rect.width = width;
- rect.height = height;
-
- if (sink->multi_sink.normgc) {
- if (width >= 0 && height >= 0)
- XSetClipRectangles(XtDisplay((Widget)ctx), sink->multi_sink.normgc,
- 0, 0, &rect, 1, Unsorted);
- else
- XSetClipMask(XtDisplay((Widget)ctx), sink->multi_sink.normgc, None);
- }
- if (sink->multi_sink.invgc) {
- if (width >= 0 && height >= 0)
- XSetClipRectangles(XtDisplay((Widget)ctx), sink->multi_sink.invgc,
- 0, 0, &rect, 1, Unsorted);
- else
- XSetClipMask(XtDisplay((Widget)ctx), sink->multi_sink.invgc, None);
- }
- if (sink->multi_sink.xorgc) {
- if (width >= 0 && height >= 0)
- XSetClipRectangles(XtDisplay((Widget)ctx), sink->multi_sink.xorgc,
- 0, 0, &rect, 1, Unsorted);
- else
- XSetClipMask(XtDisplay((Widget)ctx), sink->multi_sink.xorgc, None);
- }
-}
-
-/*
- * Function:
- * XawMultiSinkSetValues
- *
- * Parameters:
- * current - current state of the object
- * request - what was requested
- * cnew - what the object will become
- *
- * Description:
- * Sets the values for the MultiSink.
- *
- * Returns:
- * True if redisplay is needed
- */
-/*ARGSUSED*/
-static Boolean
-XawMultiSinkSetValues(Widget current, Widget request, Widget cnew,
- ArgList args, Cardinal *num_args)
-{
- MultiSinkObject w = (MultiSinkObject)cnew;
- MultiSinkObject old_w = (MultiSinkObject)current;
-
- /* Font set is not in the GC! Do not make a new GC when font set changes! */
-
- if (w->multi_sink.fontset != old_w->multi_sink.fontset) {
- ((TextWidget)XtParent(cnew))->text.redisplay_needed = True;
-#ifndef NO_TAB_FIX
- SetTabs((Widget)w, w->text_sink.tab_count, w->text_sink.char_tabs);
-#endif
- }
-
- if (w->text_sink.background != old_w->text_sink.background
- || w->text_sink.foreground != old_w->text_sink.foreground
-#ifndef OLDXAW
- || w->text_sink.cursor_color != old_w->text_sink.cursor_color
-#endif
- ) {
- XtReleaseGC(cnew, w->multi_sink.normgc);
- XtReleaseGC(cnew, w->multi_sink.invgc);
- if (w->multi_sink.xorgc)
- XtReleaseGC(cnew, w->multi_sink.xorgc);
- GetGC(w);
- ((TextWidget)XtParent(cnew))->text.redisplay_needed = True;
- }
- else if (w->multi_sink.echo != old_w->multi_sink.echo
- || w->multi_sink.display_nonprinting
- != old_w->multi_sink.display_nonprinting)
- ((TextWidget)XtParent(cnew))->text.redisplay_needed = True;
-
- return (False);
-}
-
-/*
- * Function:
- * MaxLines
- *
- * Parameters:
- * w - MultiSink Object
- * height - height to fit lines into
- *
- * Description:
- * Finds the Maximum number of lines that will fit in a given height.
- *
- * Returns:
- * The number of lines that will fit
- */
-/*ARGSUSED*/
-static int
-MaxLines(Widget w, unsigned int height)
-{
- MultiSinkObject sink = (MultiSinkObject)w;
- int font_height;
- XFontSetExtents *ext = XExtentsOfFontSet(sink->multi_sink.fontset);
-
- font_height = ext->max_logical_extent.height;
- return (height / font_height);
-}
-
-/*
- * Function:
- * MaxHeight
- *
- * Parameters:
- * w - MultiSink Object
- * lines - number of lines
- *
- * Description:
- * Finds the Minium height that will contain a given number lines.
- * Returns:
- * The height
- */
-/*ARGSUSED*/
-static int
-MaxHeight(Widget w, int lines)
-{
- MultiSinkObject sink = (MultiSinkObject)w;
- XFontSetExtents *ext = XExtentsOfFontSet(sink->multi_sink.fontset);
-
- return (lines * ext->max_logical_extent.height);
-}
-
-/*
- * Function:
- * SetTabs
- *
- * Arguments:
- * w - MultiSink Object
- * tab_count - number of tabs in the list
- * tabs - text positions of the tabs
- *
- * Description:
- * Sets the Tab stops.
- */
-static void
-SetTabs(Widget w, int tab_count, short* tabs)
-{
- MultiSinkObject sink = (MultiSinkObject)w;
- int i;
- Atom XA_FIGURE_WIDTH;
- unsigned long figure_width = 0;
- XFontStruct *font;
-
- /*
- * Bug:
- * Suppose the first font of fontset stores the unit of column.
- *
- * By Li Yuhong, Mar. 14, 1991
- */
- {
- XFontStruct **f_list;
- char **f_name;
-
- (void)XFontsOfFontSet(sink->multi_sink.fontset, &f_list, &f_name);
- font = f_list[0];
- }
-
- /*
- * Find the figure width of the current font
- */
- XA_FIGURE_WIDTH = XInternAtom(XtDisplayOfObject(w), "FIGURE_WIDTH", False);
- if (XA_FIGURE_WIDTH != None
- && (!XGetFontProperty(font, XA_FIGURE_WIDTH, &figure_width)
- || figure_width == 0)) {
- if (font->per_char && font->min_char_or_byte2 <= '$'
- && font->max_char_or_byte2 >= '$')
- figure_width = font->per_char['$' - font->min_char_or_byte2].width;
- else
- figure_width = font->max_bounds.width;
- }
-
- if (tab_count > sink->text_sink.tab_count) {
- sink->text_sink.tabs = (Position *)
- XtRealloc((char *)sink->text_sink.tabs,
- (Cardinal)(tab_count * sizeof(Position)));
- sink->text_sink.char_tabs = (short *)
- XtRealloc((char *)sink->text_sink.char_tabs,
- (Cardinal)(tab_count * sizeof(short)));
- }
-
- for (i = 0 ; i < tab_count ; i++) {
- sink->text_sink.tabs[i] = tabs[i] * figure_width;
- sink->text_sink.char_tabs[i] = tabs[i];
- }
-
- sink->text_sink.tab_count = tab_count;
-
-#ifndef NO_TAB_FIX
- ((TextWidget)XtParent(w))->text.redisplay_needed = True;
-#endif
-}
-
-void
-_XawMultiSinkPosToXY(Widget w, XawTextPosition pos, Position *x, Position *y)
-{
- MultiSinkObject sink = (MultiSinkObject)((TextWidget)w)->text.sink;
- XFontSetExtents *ext = XExtentsOfFontSet(sink->multi_sink.fontset);
-
- _XawTextPosToXY(w, pos, x, y);
- *y += abs(ext->max_logical_extent.y);
-}
+/*
+ * 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 of 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.
+ *
+ * Author: Li Yuhong OMRON Corporation
+ */
+
+/***********************************************************
+
+Copyright 1987, 1988, 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.
+
+
+Copyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts.
+
+ All Rights Reserved
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted,
+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 of Digital not be
+used in advertising or publicity pertaining to distribution of the
+software without specific, written prior permission.
+
+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
+DIGITAL 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 TORTIOUS ACTION,
+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+SOFTWARE.
+
+******************************************************************/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include <X11/IntrinsicP.h>
+#include <X11/StringDefs.h>
+#include <X11/Xatom.h>
+#include <X11/Xaw/XawInit.h>
+#include <X11/Xaw/MultiSinkP.h>
+#include <X11/Xaw/MultiSrcP.h>
+#include <X11/Xaw/TextP.h>
+#include "XawI18n.h"
+#include <stdio.h>
+#include <ctype.h>
+#include "Private.h"
+
+#ifdef GETLASTPOS
+#undef GETLASTPOS /* We will use our own GETLASTPOS */
+#endif
+
+#define GETLASTPOS \
+ XawTextSourceScan(source, 0, XawstAll, XawsdRight, 1, True)
+
+/*
+ * Class Methods
+ */
+static void XawMultiSinkClassInitialize(void);
+static void XawMultiSinkInitialize(Widget, Widget, ArgList, Cardinal*);
+static void XawMultiSinkDestroy(Widget);
+static void XawMultiSinkResize(Widget);
+static Boolean XawMultiSinkSetValues(Widget, Widget, Widget,
+ ArgList, Cardinal*);
+static int MaxLines(Widget, unsigned int);
+static int MaxHeight(Widget, int);
+static void SetTabs(Widget, int, short*);
+static void DisplayText(Widget, int, int,
+ XawTextPosition, XawTextPosition, Bool);
+static void InsertCursor(Widget, int, int, XawTextInsertState);
+static void FindPosition(Widget, XawTextPosition, int, int, Bool,
+ XawTextPosition*, int*, int*);
+static void FindDistance(Widget, XawTextPosition, int, XawTextPosition, int*,
+ XawTextPosition*, int*);
+static void Resolve(Widget, XawTextPosition, int, int, XawTextPosition*);
+static void GetCursorBounds(Widget, XRectangle*);
+
+/*
+ * Prototypes
+ */
+static void GetGC(MultiSinkObject);
+static int CharWidth(MultiSinkObject, XFontSet, int, wchar_t);
+static unsigned int PaintText(Widget w, GC gc, int x, int y,
+ wchar_t *buf, int len, Bool);
+
+/*
+ * Defined in TextSink.c
+ */
+void _XawTextSinkClearToBackground(Widget, int, int, unsigned, unsigned);
+
+/*
+ * Initialization
+ */
+static wchar_t wspace[2];
+
+#define offset(field) XtOffsetOf(MultiSinkRec, multi_sink.field)
+static XtResource resources[] = {
+ {
+ XtNfontSet,
+ XtCFontSet,
+ XtRFontSet,
+ sizeof(XFontSet),
+ offset(fontset),
+ XtRString,
+ XtDefaultFontSet
+ },
+ {
+ XtNecho,
+ XtCOutput,
+ XtRBoolean,
+ sizeof(Boolean),
+ offset(echo),
+ XtRImmediate,
+ (XtPointer)True
+ },
+ {
+ XtNdisplayNonprinting,
+ XtCOutput,
+ XtRBoolean,
+ sizeof(Boolean),
+ offset(display_nonprinting),
+ XtRImmediate,
+ (XtPointer)True
+ },
+};
+#undef offset
+
+#define SuperClass (&textSinkClassRec)
+MultiSinkClassRec multiSinkClassRec = {
+ /* object */
+ {
+ (WidgetClass)SuperClass, /* superclass */
+ "MultiSink", /* class_name */
+ sizeof(MultiSinkRec), /* widget_size */
+ XawMultiSinkClassInitialize, /* class_initialize */
+ NULL, /* class_part_initialize */
+ False, /* class_inited */
+ XawMultiSinkInitialize, /* 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 */
+ XawMultiSinkDestroy, /* destroy */
+ (XtProc)XawMultiSinkResize, /* obj8 */
+ NULL, /* obj9 */
+ XawMultiSinkSetValues, /* set_values */
+ NULL, /* set_values_hook */
+ NULL, /* obj10 */
+ NULL, /* get_values_hook */
+ NULL, /* obj11 */
+ XtVersion, /* version */
+ NULL, /* callback_private */
+ NULL, /* obj12 */
+ NULL, /* obj13 */
+ NULL, /* obj14 */
+ NULL, /* extension */
+ },
+ /* text_sink */
+ {
+ DisplayText, /* DisplayText */
+ InsertCursor, /* InsertCursor */
+ XtInheritClearToBackground, /* ClearToBackground */
+ FindPosition, /* FindPosition */
+ FindDistance, /* FindDistance */
+ Resolve, /* Resolve */
+ MaxLines, /* MaxLines */
+ MaxHeight, /* MaxHeight */
+ SetTabs, /* SetTabs */
+ GetCursorBounds, /* GetCursorBounds */
+ },
+ /* multi_sink */
+ {
+ NULL, /* extension */
+ }
+};
+
+WidgetClass multiSinkObjectClass = (WidgetClass)&multiSinkClassRec;
+
+/*
+ * Implementation
+ */
+static int
+CharWidth(MultiSinkObject sink, XFontSet fontset, int x, wchar_t c)
+{
+ int width = 0;
+
+ if (c == _Xaw_atowc(XawLF))
+ return (0);
+
+ if (c == _Xaw_atowc(XawTAB)) {
+ int i;
+ Position *tab;
+
+ width = x;
+ /* Adjust for Left Margin. */
+ x -= ((TextWidget)XtParent((Widget)sink))->text.left_margin;
+
+ i = 0;
+ tab = sink->text_sink.tabs;
+ /*CONSTCOND*/
+ while (1) {
+ if (x < *tab)
+ return (*tab - x);
+ /* Start again */
+ if (++i >= sink->text_sink.tab_count) {
+ x -= *tab;
+ i = 0;
+ tab = sink->text_sink.tabs;
+ if (width == x)
+ return (0);
+ }
+ else
+ ++tab;
+ }
+ /*NOTREACHED*/
+ }
+
+ if (XwcTextEscapement(fontset, &c, 1) == 0) {
+ if (sink->multi_sink.display_nonprinting)
+ c = _Xaw_atowc('@');
+ else
+ c = _Xaw_atowc(XawSP);
+ }
+
+ /*
+ * if more efficiency(suppose one column is one ASCII char)
+
+ width = XwcGetColumn(fontset->font_charset, fontset->num_of_fonts, c) *
+ fontset->font_struct_list[0]->min_bounds.width;
+ *
+ * WARNING: Very Slower!!!
+ *
+ * Li Yuhong.
+ */
+
+ width = XwcTextEscapement(fontset, &c, 1);
+
+ return (width);
+}
+
+/*
+ * Function:
+ * PaintText
+ *
+ * Parameters:
+ * w - text sink object
+ * gc - gc to paint text
+ * x - location to paint the text
+ * y - ""
+ * buf - buffer and length of text to paint
+ * len - ""
+ * clear_bg - clear background before drawing ?
+ *
+ * Description:
+ * Actually paints the text into the window.
+ *
+ * Returns:
+ * The width of the text painted
+ */
+static unsigned int
+PaintText(Widget w, GC gc, int x, int y, wchar_t *buf, int len, Bool clear_bg)
+{
+ MultiSinkObject sink = (MultiSinkObject)w;
+ TextWidget ctx = (TextWidget)XtParent(w);
+ XFontSet fontset = sink->multi_sink.fontset;
+ unsigned int width = XwcTextEscapement(fontset, buf, len);
+
+ if (((int)width) <= -x) /* Don't draw if we can't see it */
+ return (width);
+
+ if (clear_bg) {
+ XFontSetExtents *ext = XExtentsOfFontSet(fontset);
+
+ _XawTextSinkClearToBackground(w, x, y - abs(ext->max_logical_extent.y),
+ width, ext->max_logical_extent.height);
+ XwcDrawString(XtDisplay(ctx), XtWindow(ctx), fontset, gc, x, y, buf, len);
+ }
+ else
+ XwcDrawImageString(XtDisplay(ctx), XtWindow(ctx), fontset, gc,
+ x, y, buf, len);
+
+ return (width);
+}
+
+/* Sink Object Functions */
+/*
+ * This function does not know about drawing more than one line of text
+ */
+static void
+DisplayText(Widget w, int x, int y,
+ XawTextPosition pos1, XawTextPosition pos2, Bool highlight)
+{
+ TextWidget ctx = (TextWidget)XtParent(w);
+ MultiSinkObject sink = (MultiSinkObject)w;
+ XFontSet fontset = sink->multi_sink.fontset;
+ Widget source = XawTextGetSource(XtParent(w));
+ wchar_t buf[256];
+ XFontSetExtents *ext = XExtentsOfFontSet(fontset);
+ int j, k;
+ XawTextBlock blk;
+ GC gc, invgc, tabgc;
+ int max_x;
+ Bool clear_bg;
+
+ if (!sink->multi_sink.echo || !ctx->text.lt.lines)
+ return;
+
+ max_x = (int)XtWidth(ctx) - ctx->text.r_margin.right;
+ clear_bg = !highlight && ctx->core.background_pixmap != XtUnspecifiedPixmap;
+
+ gc = highlight ? sink->multi_sink.invgc : sink->multi_sink.normgc;
+ invgc = highlight ? sink->multi_sink.normgc : sink->multi_sink.invgc;
+
+ if (highlight && sink->multi_sink.xorgc)
+ tabgc = sink->multi_sink.xorgc;
+ else
+ tabgc = invgc;
+
+ y += abs(ext->max_logical_extent.y);
+ for (j = 0; pos1 < pos2;) {
+ pos1 = XawTextSourceRead(source, pos1, &blk, (int) pos2 - pos1);
+ for (k = 0; k < blk.length; k++) {
+ if ((unsigned) j >= (sizeof(buf) / sizeof(wchar_t)) - 1) {
+ /* buffer full, dump the text */
+ if ((x += PaintText(w, gc, x, y, buf, j, clear_bg)) >= max_x)
+ return;
+ j = 0;
+ }
+ buf[j] = ((wchar_t *)blk.ptr)[k];
+ if (buf[j] == _Xaw_atowc(XawLF))
+ continue;
+
+ else if (buf[j] == _Xaw_atowc(XawTAB)) {
+ unsigned int width;
+
+ if (j != 0 &&
+ (x += PaintText(w, gc, x, y, buf, j, clear_bg)) >= max_x)
+ return;
+
+ width = CharWidth(sink, fontset, x, _Xaw_atowc(XawTAB));
+ if (clear_bg)
+ _XawTextSinkClearToBackground(w,
+ x, y - abs(ext->max_logical_extent.y),
+ width, ext->max_logical_extent.height);
+ else
+ XFillRectangle(XtDisplayOfObject(w), XtWindowOfObject(w),
+ tabgc, x,
+ y - abs(ext->max_logical_extent.y),
+ width,
+ ext->max_logical_extent.height);
+ x += width;
+ j = -1;
+ }
+ else if (XwcTextEscapement(sink->multi_sink.fontset, &buf[j], 1)
+ == 0) {
+ if (sink->multi_sink.display_nonprinting)
+ buf[j] = _Xaw_atowc('@');
+ else
+ buf[j] = _Xaw_atowc(XawSP);
+ }
+ j++;
+ }
+ }
+
+ if (j > 0)
+ (void)PaintText(w, gc, x, y, buf, j, clear_bg);
+}
+
+/*
+ * Function:
+ * GetCursorBounds
+ *
+ * Parameters:
+ * w - text sink object
+ * rect - X rectangle to return the cursor bounds
+ *
+ * Description:
+ * Returns the size and location of the cursor.
+ */
+static void
+GetCursorBounds(Widget w, XRectangle *rect)
+{
+ MultiSinkObject sink = (MultiSinkObject)w;
+
+ rect->width = CharWidth(sink, sink->multi_sink.fontset, 0, _Xaw_atowc(XawSP));
+ rect->height = (XExtentsOfFontSet(sink->multi_sink.fontset)
+ ->max_logical_extent.height);
+ rect->x = sink->multi_sink.cursor_x;
+ rect->y = sink->multi_sink.cursor_y - (short)rect->height;
+}
+
+/*
+ * The following procedure manages the "insert" cursor
+ */
+static void
+InsertCursor(Widget w, int x, int y, XawTextInsertState state)
+{
+ MultiSinkObject sink = (MultiSinkObject)w;
+ XFontSet fontset = sink->multi_sink.fontset;
+ Widget ctx = XtParent(w);
+ XawTextPosition position = XawTextGetInsertionPoint(ctx);
+
+ if (XtIsRealized(ctx)) {
+ int fheight, fdiff;
+ XawTextBlock block;
+ wchar_t c;
+ XawTextPosition selection_start, selection_end;
+ Boolean has_selection;
+ XFontSetExtents *ext = XExtentsOfFontSet(fontset);
+
+ XawTextGetSelectionPos((Widget)ctx, &selection_start, &selection_end);
+ has_selection = selection_start != selection_end;
+
+ fheight = ext->max_logical_extent.height;
+ fdiff = fheight - abs(ext->max_logical_extent.y);
+
+ if ((sink->multi_sink.cursor_position != position || state == XawisOff)
+ && !has_selection && sink->multi_sink.laststate != XawisOff) {
+ wchar_t *ochar;
+
+ (void)XawTextSourceRead(XawTextGetSource(ctx),
+ sink->multi_sink.cursor_position,
+ &block, 1);
+ if (!block.length)
+ ochar = NULL;
+ else {
+ c = ((wchar_t *)block.ptr)[0];
+ if (c == _Xaw_atowc(XawLF))
+ ochar = NULL;
+ else if (c == _Xaw_atowc(XawTAB))
+ ochar = wspace;
+ else
+ ochar = (wchar_t *)block.ptr;
+ }
+
+ if (!ochar)
+ _XawTextSinkClearToBackground(w, sink->multi_sink.cursor_x,
+ (sink->multi_sink.cursor_y - 1 -
+ fheight), CharWidth(sink, fontset,
+ 0, wspace[0]),
+ fheight);
+ else {
+ if (XwcTextEscapement(sink->multi_sink.fontset, ochar, 1) != 0)
+ DisplayText(w, sink->multi_sink.cursor_x,
+ sink->multi_sink.cursor_y - 1 - fheight,
+ sink->multi_sink.cursor_position,
+ sink->multi_sink.cursor_position + 1,
+ False);
+ else
+ PaintText(w, sink->multi_sink.normgc,
+ sink->multi_sink.cursor_x,
+ sink->multi_sink.cursor_y - 1 - fdiff,
+ ochar, 1,
+ ctx->core.background_pixmap != XtUnspecifiedPixmap);
+ }
+ }
+
+ if (!has_selection && state != XawisOff) {
+ wchar_t *nchar;
+ Boolean focus = ((TextWidget)ctx)->text.hasfocus;
+
+ (void)XawTextSourceRead(XawTextGetSource(ctx),
+ position, &block, 1);
+ c = ((wchar_t *)block.ptr)[0];
+ if (!block.length || c == _Xaw_atowc(XawLF)
+ || c == _Xaw_atowc(XawTAB))
+ nchar = wspace;
+ else
+ nchar = (wchar_t *)block.ptr;
+
+ if (focus) {
+ if (XwcTextEscapement(sink->multi_sink.fontset, nchar, 1) != 0)
+ XwcDrawImageString(XtDisplay(ctx), XtWindow(ctx),
+ fontset, sink->multi_sink.invgc,
+ x, (y - 1 - fdiff), nchar, 1);
+ else
+ DisplayText(w, x, y - 1 - fheight,
+ position, position + 1, True);
+ }
+ else
+ XDrawRectangle(XtDisplay(ctx), XtWindow(ctx),
+ sink->multi_sink.xorgc ?
+ sink->multi_sink.xorgc : sink->multi_sink.normgc,
+ x, y - 1 - fheight,
+ CharWidth(sink, fontset, 0, *nchar) - 1,
+ fheight - 1);
+ }
+ }
+
+ sink->multi_sink.cursor_x = x;
+ sink->multi_sink.cursor_y = y;
+ sink->multi_sink.laststate = state;
+ sink->multi_sink.cursor_position = position;
+}
+
+/*
+ * Given two positions, find the distance between them
+ */
+static void
+FindDistance(Widget w, XawTextPosition fromPos, int fromx,
+ XawTextPosition toPos, int *resWidth,
+ XawTextPosition *resPos, int *resHeight)
+{
+ MultiSinkObject sink = (MultiSinkObject)w;
+ XFontSet fontset = sink->multi_sink.fontset;
+ TextWidget ctx = (TextWidget)XtParent(w);
+ Widget source = ctx->text.source;
+ XawTextPosition idx, pos;
+ wchar_t c;
+ XFontSetExtents *ext = XExtentsOfFontSet(fontset);
+ XawTextBlock blk;
+ int i, rWidth;
+
+ pos = XawTextSourceRead(source, fromPos, &blk, toPos - fromPos);
+ rWidth = 0;
+ for (i = 0, idx = fromPos; idx < toPos; i++, idx++) {
+ if (i >= blk.length) {
+ i = 0;
+ XawTextSourceRead(source, pos, &blk, toPos - pos);
+ if (blk.length == 0)
+ break;
+ }
+ c = ((wchar_t *)blk.ptr)[i];
+ rWidth += CharWidth(sink, fontset, fromx + rWidth, c);
+ if (c == _Xaw_atowc(XawLF)) {
+ idx++;
+ break;
+ }
+ }
+
+ *resPos = idx;
+ *resWidth = rWidth;
+ *resHeight = ext->max_logical_extent.height;
+}
+
+static void
+FindPosition(Widget w, XawTextPosition fromPos, int fromx, int width,
+ Bool stopAtWordBreak, XawTextPosition *resPos, int *resWidth,
+ int *resHeight)
+{
+ MultiSinkObject sink = (MultiSinkObject)w;
+ TextWidget ctx = (TextWidget)XtParent(w);
+ Widget source = ctx->text.source;
+ XFontSet fontset = sink->multi_sink.fontset;
+ XawTextPosition idx, pos, whiteSpacePosition = 0;
+ int i, lastWidth, whiteSpaceWidth, rWidth;
+ Boolean whiteSpaceSeen;
+ wchar_t c;
+ XFontSetExtents *ext = XExtentsOfFontSet(fontset);
+ XawTextBlock blk;
+
+ pos = XawTextSourceRead(source, fromPos, &blk, BUFSIZ);
+ rWidth = lastWidth = whiteSpaceWidth = 0;
+ whiteSpaceSeen = False;
+ c = 0;
+
+ for (i = 0, idx = fromPos; rWidth <= width; i++, idx++) {
+ if (i >= blk.length) {
+ i = 0;
+ pos = XawTextSourceRead(source, pos, &blk, BUFSIZ);
+ if (blk.length == 0)
+ break;
+ }
+ c = ((wchar_t *)blk.ptr)[i];
+ lastWidth = rWidth;
+ rWidth += CharWidth(sink, fontset, fromx + rWidth, c);
+
+ if (c == _Xaw_atowc(XawLF)) {
+ idx++;
+ break;
+ }
+ else if ((c == _Xaw_atowc(XawSP) || c == _Xaw_atowc(XawTAB))
+ && rWidth <= width) {
+ whiteSpaceSeen = True;
+ whiteSpacePosition = idx;
+ whiteSpaceWidth = rWidth;
+ }
+ }
+
+ if (rWidth > width && idx > fromPos) {
+ idx--;
+ rWidth = lastWidth;
+ if (stopAtWordBreak && whiteSpaceSeen) {
+ idx = whiteSpacePosition + 1;
+ rWidth = whiteSpaceWidth;
+ }
+ }
+
+ if (idx >= ctx->text.lastPos && c != _Xaw_atowc(XawLF))
+ idx = ctx->text.lastPos + 1;
+
+ *resPos = idx;
+ *resWidth = rWidth;
+ *resHeight = ext->max_logical_extent.height;
+}
+
+static void
+Resolve(Widget w, XawTextPosition pos, int fromx, int width,
+ XawTextPosition *pos_return)
+{
+ int resWidth, resHeight;
+ Widget source = XawTextGetSource(XtParent(w));
+
+ FindPosition(w, pos, fromx, width, False, pos_return, &resWidth, &resHeight);
+ if (*pos_return > GETLASTPOS)
+ *pos_return = GETLASTPOS;
+}
+
+static void
+GetGC(MultiSinkObject sink)
+{
+ XtGCMask valuemask = (GCGraphicsExposures | GCClipXOrigin |
+ GCForeground | GCBackground);
+ XGCValues values;
+
+ /* XXX We dont want do share a gc that will change the clip-mask */
+ values.clip_x_origin = (long)sink;
+ values.clip_mask = None;
+ values.graphics_exposures = False;
+
+ values.foreground = sink->text_sink.foreground;
+ values.background = sink->text_sink.background;
+
+ sink->multi_sink.normgc = XtAllocateGC((Widget)sink, 0, valuemask, &values,
+ GCFont | GCClipMask, 0);
+
+ values.foreground = sink->text_sink.background;
+#ifndef OLDXAW
+ values.background = sink->text_sink.cursor_color;
+#else
+ values.background = sink->text_sink.foreground;
+#endif
+ sink->multi_sink.invgc = XtAllocateGC((Widget)sink, 0, valuemask, &values,
+ GCFont | GCClipMask, 0);
+#ifndef OLDXAW
+ if (sink->text_sink.cursor_color != sink->text_sink.foreground) {
+ values.foreground = sink->text_sink.cursor_color;
+ values.background = sink->text_sink.foreground;
+ sink->multi_sink.xorgc = XtAllocateGC((Widget)sink, 0, valuemask,
+ &values, GCFont | GCClipMask, 0);
+ }
+ else
+#endif /* OLDXAW */
+ sink->multi_sink.xorgc = NULL;
+
+ XawMultiSinkResize((Widget)sink);
+}
+
+static void
+XawMultiSinkClassInitialize(void)
+{
+ wspace[0] = _Xaw_atowc(XawSP);
+ XawInitializeWidgetSet();
+}
+
+/*
+ * Function:
+ * XawMultiSinkInitialize
+ *
+ * Parameters:
+ * request - requested and new values for the object instance
+ * cnew - ""
+ *
+ * Description:
+ * Initializes the TextSink Object.
+ */
+/* ARGSUSED */
+static void
+XawMultiSinkInitialize(Widget request, Widget cnew,
+ ArgList args, Cardinal *num_args)
+{
+ MultiSinkObject sink = (MultiSinkObject)cnew;
+
+ GetGC(sink);
+
+ if (!sink->multi_sink.fontset) XtError("Aborting: no fontset found\n");
+
+ sink->multi_sink.cursor_position = 0;
+ sink->multi_sink.laststate = XawisOff;
+ sink->multi_sink.cursor_x = sink->multi_sink.cursor_y = 0;
+}
+
+/*
+ * Function:
+ * XawMultiSinkDestroy
+ *
+ * Parameters:
+ * w - MultiSink Object
+ *
+ * Description:
+ * This function cleans up when the object is destroyed.
+ */
+static void
+XawMultiSinkDestroy(Widget w)
+{
+ MultiSinkObject sink = (MultiSinkObject)w;
+
+ XtReleaseGC(w, sink->multi_sink.normgc);
+ XtReleaseGC(w, sink->multi_sink.invgc);
+ if (sink->multi_sink.xorgc)
+ XtReleaseGC(w, sink->multi_sink.xorgc);
+ sink->multi_sink.normgc =
+ sink->multi_sink.invgc =
+ sink->multi_sink.xorgc = NULL;
+}
+
+static void
+XawMultiSinkResize(Widget w)
+{
+ TextWidget ctx = (TextWidget)XtParent(w);
+ MultiSinkObject sink = (MultiSinkObject)w;
+ XRectangle rect;
+ int width, height;
+
+ if (w->core.widget_class != multiSinkObjectClass)
+ return;
+
+ rect.x = ctx->text.r_margin.left;
+ rect.y = ctx->text.r_margin.top;
+ width = (int)XtWidth(ctx) -
+ (int)ctx->text.r_margin.right - (int)ctx->text.r_margin.left;
+ height = (int)XtHeight(ctx) -
+ (int)ctx->text.r_margin.top - (int)ctx->text.r_margin.bottom;
+ rect.width = width;
+ rect.height = height;
+
+ if (sink->multi_sink.normgc) {
+ if (width >= 0 && height >= 0)
+ XSetClipRectangles(XtDisplay((Widget)ctx), sink->multi_sink.normgc,
+ 0, 0, &rect, 1, Unsorted);
+ else
+ XSetClipMask(XtDisplay((Widget)ctx), sink->multi_sink.normgc, None);
+ }
+ if (sink->multi_sink.invgc) {
+ if (width >= 0 && height >= 0)
+ XSetClipRectangles(XtDisplay((Widget)ctx), sink->multi_sink.invgc,
+ 0, 0, &rect, 1, Unsorted);
+ else
+ XSetClipMask(XtDisplay((Widget)ctx), sink->multi_sink.invgc, None);
+ }
+ if (sink->multi_sink.xorgc) {
+ if (width >= 0 && height >= 0)
+ XSetClipRectangles(XtDisplay((Widget)ctx), sink->multi_sink.xorgc,
+ 0, 0, &rect, 1, Unsorted);
+ else
+ XSetClipMask(XtDisplay((Widget)ctx), sink->multi_sink.xorgc, None);
+ }
+}
+
+/*
+ * Function:
+ * XawMultiSinkSetValues
+ *
+ * Parameters:
+ * current - current state of the object
+ * request - what was requested
+ * cnew - what the object will become
+ *
+ * Description:
+ * Sets the values for the MultiSink.
+ *
+ * Returns:
+ * True if redisplay is needed
+ */
+/*ARGSUSED*/
+static Boolean
+XawMultiSinkSetValues(Widget current, Widget request, Widget cnew,
+ ArgList args, Cardinal *num_args)
+{
+ MultiSinkObject w = (MultiSinkObject)cnew;
+ MultiSinkObject old_w = (MultiSinkObject)current;
+
+ /* Font set is not in the GC! Do not make a new GC when font set changes! */
+
+ if (w->multi_sink.fontset != old_w->multi_sink.fontset) {
+ ((TextWidget)XtParent(cnew))->text.redisplay_needed = True;
+#ifndef NO_TAB_FIX
+ SetTabs((Widget)w, w->text_sink.tab_count, w->text_sink.char_tabs);
+#endif
+ }
+
+ if (w->text_sink.background != old_w->text_sink.background
+ || w->text_sink.foreground != old_w->text_sink.foreground
+#ifndef OLDXAW
+ || w->text_sink.cursor_color != old_w->text_sink.cursor_color
+#endif
+ ) {
+ XtReleaseGC(cnew, w->multi_sink.normgc);
+ XtReleaseGC(cnew, w->multi_sink.invgc);
+ if (w->multi_sink.xorgc)
+ XtReleaseGC(cnew, w->multi_sink.xorgc);
+ GetGC(w);
+ ((TextWidget)XtParent(cnew))->text.redisplay_needed = True;
+ }
+ else if (w->multi_sink.echo != old_w->multi_sink.echo
+ || w->multi_sink.display_nonprinting
+ != old_w->multi_sink.display_nonprinting)
+ ((TextWidget)XtParent(cnew))->text.redisplay_needed = True;
+
+ return (False);
+}
+
+/*
+ * Function:
+ * MaxLines
+ *
+ * Parameters:
+ * w - MultiSink Object
+ * height - height to fit lines into
+ *
+ * Description:
+ * Finds the Maximum number of lines that will fit in a given height.
+ *
+ * Returns:
+ * The number of lines that will fit
+ */
+/*ARGSUSED*/
+static int
+MaxLines(Widget w, unsigned int height)
+{
+ MultiSinkObject sink = (MultiSinkObject)w;
+ int font_height;
+ XFontSetExtents *ext = XExtentsOfFontSet(sink->multi_sink.fontset);
+
+ font_height = ext->max_logical_extent.height;
+ return (height / font_height);
+}
+
+/*
+ * Function:
+ * MaxHeight
+ *
+ * Parameters:
+ * w - MultiSink Object
+ * lines - number of lines
+ *
+ * Description:
+ * Finds the Minium height that will contain a given number lines.
+ * Returns:
+ * The height
+ */
+/*ARGSUSED*/
+static int
+MaxHeight(Widget w, int lines)
+{
+ MultiSinkObject sink = (MultiSinkObject)w;
+ XFontSetExtents *ext = XExtentsOfFontSet(sink->multi_sink.fontset);
+
+ return (lines * ext->max_logical_extent.height);
+}
+
+/*
+ * Function:
+ * SetTabs
+ *
+ * Arguments:
+ * w - MultiSink Object
+ * tab_count - number of tabs in the list
+ * tabs - text positions of the tabs
+ *
+ * Description:
+ * Sets the Tab stops.
+ */
+static void
+SetTabs(Widget w, int tab_count, short* tabs)
+{
+ MultiSinkObject sink = (MultiSinkObject)w;
+ int i;
+ Atom XA_FIGURE_WIDTH;
+ unsigned long figure_width = 0;
+ XFontStruct *font;
+
+ /*
+ * Bug:
+ * Suppose the first font of fontset stores the unit of column.
+ *
+ * By Li Yuhong, Mar. 14, 1991
+ */
+ {
+ XFontStruct **f_list;
+ char **f_name;
+
+ (void)XFontsOfFontSet(sink->multi_sink.fontset, &f_list, &f_name);
+ font = f_list[0];
+ }
+
+ /*
+ * Find the figure width of the current font
+ */
+ XA_FIGURE_WIDTH = XInternAtom(XtDisplayOfObject(w), "FIGURE_WIDTH", False);
+ if (XA_FIGURE_WIDTH != None
+ && (!XGetFontProperty(font, XA_FIGURE_WIDTH, &figure_width)
+ || figure_width == 0)) {
+ if (font->per_char && font->min_char_or_byte2 <= '$'
+ && font->max_char_or_byte2 >= '$')
+ figure_width = font->per_char['$' - font->min_char_or_byte2].width;
+ else
+ figure_width = font->max_bounds.width;
+ }
+
+ if (tab_count > sink->text_sink.tab_count) {
+ sink->text_sink.tabs = (Position *)
+ XtRealloc((char *)sink->text_sink.tabs,
+ (Cardinal)(tab_count * sizeof(Position)));
+ sink->text_sink.char_tabs = (short *)
+ XtRealloc((char *)sink->text_sink.char_tabs,
+ (Cardinal)(tab_count * sizeof(short)));
+ }
+
+ for (i = 0 ; i < tab_count ; i++) {
+ sink->text_sink.tabs[i] = tabs[i] * figure_width;
+ sink->text_sink.char_tabs[i] = tabs[i];
+ }
+
+ sink->text_sink.tab_count = tab_count;
+
+#ifndef NO_TAB_FIX
+ ((TextWidget)XtParent(w))->text.redisplay_needed = True;
+#endif
+}
+
+void
+_XawMultiSinkPosToXY(Widget w, XawTextPosition pos, Position *x, Position *y)
+{
+ MultiSinkObject sink = (MultiSinkObject)((TextWidget)w)->text.sink;
+ XFontSetExtents *ext = XExtentsOfFontSet(sink->multi_sink.fontset);
+
+ _XawTextPosToXY(w, pos, x, y);
+ *y += abs(ext->max_logical_extent.y);
+}