diff options
Diffstat (limited to 'libXaw/src/MultiSink.c')
| -rw-r--r-- | libXaw/src/MultiSink.c | 1950 |
1 files changed, 975 insertions, 975 deletions
diff --git a/libXaw/src/MultiSink.c b/libXaw/src/MultiSink.c index 39c7da212..129624e01 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); +} |