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054e4cc37c
freebsd-ports/x11-toolkits/tk80/files/patch-ac
Thomas Gellekum 2465b3d4ce This extension changed in the latest beta of tkman. 
Obtained from:	tkman-2.0b7 distribution
1997-08-25 09:12:21 +00:00

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*** tkText.c 1997/07/04 22:39:41 2.0
--- ../generic/tkText.c 1997/08/15 22:25:21
***************
*** 866,871 ****
--- 866,872 ----
|| (textPtr->selTagPtr->spacing2String != NULL)
|| (textPtr->selTagPtr->spacing3String != NULL)
|| (textPtr->selTagPtr->tabString != NULL)
+ || (textPtr->selTagPtr->elideString != NULL)
|| (textPtr->selTagPtr->underlineString != NULL)
|| (textPtr->selTagPtr->wrapMode != NULL)) {
textPtr->selTagPtr->affectsDisplay = 1;
***************
*** 1414,1420 ****
}
}
}
! if (segPtr->typePtr == &tkTextCharType) {
memcpy((VOID *) buffer, (VOID *) (segPtr->body.chars
+ offsetInSeg), (size_t) chunkSize);
buffer += chunkSize;
--- 1415,1421 ----
}
}
}
! if (segPtr->typePtr == &tkTextCharType && !TkTextIsElided(textPtr, &textPtr->selIndex)) {
memcpy((VOID *) buffer, (VOID *) (segPtr->body.chars
+ offsetInSeg), (size_t) chunkSize);
buffer += chunkSize;
***************
*** 1555,1561 ****
int argc; /* Number of arguments. */
char **argv; /* Argument strings. */
{
! int backwards, exact, c, i, argsLeft, noCase, leftToScan;
size_t length;
int numLines, startingLine, startingChar, lineNum, firstChar, lastChar;
int code, matchLength, matchChar, passes, stopLine, searchWholeText;
--- 1556,1562 ----
int argc; /* Number of arguments. */
char **argv; /* Argument strings. */
{
! int backwards, exact, searchElide, c, i, argsLeft, noCase, leftToScan;
size_t length;
int numLines, startingLine, startingChar, lineNum, firstChar, lastChar;
int code, matchLength, matchChar, passes, stopLine, searchWholeText;
***************
*** 1566,1571 ****
--- 1567,1573 ----
Tcl_DString line, patDString;
TkTextSegment *segPtr;
TkTextLine *linePtr;
+ TkTextIndex curIndex;
Tcl_RegExp regexp = NULL; /* Initialization needed only to
* prevent compiler warning. */
***************
*** 1574,1579 ****
--- 1576,1583 ----
*/
exact = 1;
+ searchElide = 0;
+ curIndex.tree = textPtr->tree;
backwards = 0;
noCase = 0;
varName = NULL;
***************
*** 1587,1593 ****
badSwitch:
Tcl_AppendResult(interp, "bad switch \"", arg,
"\": must be -forward, -backward, -exact, -regexp, ",
! "-nocase, -count, or --", (char *) NULL);
return TCL_ERROR;
}
c = arg[1];
--- 1591,1597 ----
badSwitch:
Tcl_AppendResult(interp, "bad switch \"", arg,
"\": must be -forward, -backward, -exact, -regexp, ",
! "-nocase, -count, -elide, or --", (char *) NULL);
return TCL_ERROR;
}
c = arg[1];
***************
*** 1608,1613 ****
--- 1612,1619 ----
noCase = 1;
} else if ((c == 'r') && (strncmp(argv[i], "-regexp", length) == 0)) {
exact = 0;
+ } else if ((c == 'e') && (strncmp(argv[i], "-elide", length) == 0)) {
+ searchElide = 1;
} else if ((c == '-') && (strncmp(argv[i], "--", length) == 0)) {
i++;
break;
***************
*** 1703,1711 ****
*/
linePtr = TkBTreeFindLine(textPtr->tree, lineNum);
for (segPtr = linePtr->segPtr; segPtr != NULL;
! segPtr = segPtr->nextPtr) {
! if (segPtr->typePtr != &tkTextCharType) {
continue;
}
Tcl_DStringAppend(&line, segPtr->body.chars, segPtr->size);
--- 1709,1718 ----
*/
linePtr = TkBTreeFindLine(textPtr->tree, lineNum);
+ curIndex.linePtr = linePtr; curIndex.charIndex = 0;
for (segPtr = linePtr->segPtr; segPtr != NULL;
! curIndex.charIndex += segPtr->size, segPtr = segPtr->nextPtr) {
! if (segPtr->typePtr != &tkTextCharType || (!searchElide && TkTextIsElided(textPtr, &curIndex))) {
continue;
}
Tcl_DStringAppend(&line, segPtr->body.chars, segPtr->size);
*** tkText.h 1997/07/04 22:39:41 2.0
--- ../generic/tkText.h 1997/08/15 22:18:56
***************
*** 370,375 ****
--- 370,379 ----
* Must be tkTextCharUid, tkTextNoneUid,
* tkTextWordUid, or NULL to use wrapMode
* for whole widget. */
+ char *elideString; /* -elide option string (malloc-ed).
+ * NULL means option not specified. */
+ int elide; /* Non-zero means text is elided.
+ * Only valid if elideString is non-NULL. */
int affectsDisplay; /* Non-zero means that this tag affects the
* way information is displayed on the screen
* (so need to redisplay if tag changes). */
***************
*** 800,805 ****
--- 804,811 ----
ClientData clientData));
extern TkTextIndex * TkTextMakeIndex _ANSI_ARGS_((TkTextBTree tree,
int lineIndex, int charIndex,
+ TkTextIndex *indexPtr));
+ extern int TkTextIsElided _ANSI_ARGS_((TkText *textPtr,
TkTextIndex *indexPtr));
extern int TkTextMarkCmd _ANSI_ARGS_((TkText *textPtr,
Tcl_Interp *interp, int argc, char **argv));
*** tkTextBTree.c 1997/07/04 22:39:41 2.0
--- ../generic/tkTextBTree.c 1997/08/15 22:20:16
***************
*** 2427,2432 ****
--- 2427,2558 ----
}
return tagInfo.tagPtrs;
}
+
+
+ /*
+ special case to just return information about elided attribute
+ specialized from TkBTreeGetTags(indexPtr, numTagsPtr) and GetStyle(textPtr, indexPtr)
+ just need to keep track of invisibility settings for each priority, pick highest one active at end
+ */
+ int
+ TkTextIsElided(textPtr, indexPtr)
+ TkText *textPtr; /* Overall information about text widget. */
+ TkTextIndex *indexPtr; /* The character in the text for which
+ * display information is wanted. */
+ {
+ #define LOTSA_TAGS 1000
+ int elide = 0; /* if nobody says otherwise, it's visible */
+
+ int deftagCnts[LOTSA_TAGS];
+ int *tagCnts = deftagCnts;
+ TkTextTag *deftagPtrs[LOTSA_TAGS];
+ TkTextTag **tagPtrs = deftagPtrs;
+ int numTags = textPtr->numTags;
+ register Node *nodePtr;
+ register TkTextLine *siblingLinePtr;
+ register TkTextSegment *segPtr;
+ register TkTextTag *tagPtr;
+ register int i, index;
+
+ /* almost always avoid malloc, so stay out of system calls */
+ if (LOTSA_TAGS < numTags) {
+ tagCnts = (int *)ckalloc((unsigned)sizeof(int) * numTags);
+ tagPtrs = (TkTextTag **)ckalloc((unsigned)sizeof(TkTextTag *) * numTags);
+ }
+
+ for (i=0; i<numTags; i++) tagCnts[i]=0;
+
+
+ /*
+ * Record tag toggles within the line of indexPtr but preceding
+ * indexPtr.
+ */
+
+ for (index = 0, segPtr = indexPtr->linePtr->segPtr;
+ (index + segPtr->size) <= indexPtr->charIndex;
+ index += segPtr->size, segPtr = segPtr->nextPtr) {
+ if ((segPtr->typePtr == &tkTextToggleOnType)
+ || (segPtr->typePtr == &tkTextToggleOffType)) {
+ tagPtr = segPtr->body.toggle.tagPtr;
+ if (tagPtr->elideString != NULL) {
+ tagPtrs[tagPtr->priority] = tagPtr;
+ tagCnts[tagPtr->priority]++;
+ }
+ }
+ }
+
+ /*
+ * Record toggles for tags in lines that are predecessors of
+ * indexPtr->linePtr but under the same level-0 node.
+ */
+
+ for (siblingLinePtr = indexPtr->linePtr->parentPtr->children.linePtr;
+ siblingLinePtr != indexPtr->linePtr;
+ siblingLinePtr = siblingLinePtr->nextPtr) {
+ for (segPtr = siblingLinePtr->segPtr; segPtr != NULL;
+ segPtr = segPtr->nextPtr) {
+ if ((segPtr->typePtr == &tkTextToggleOnType)
+ || (segPtr->typePtr == &tkTextToggleOffType)) {
+ tagPtr = segPtr->body.toggle.tagPtr;
+ if (tagPtr->elideString != NULL) {
+ tagPtrs[tagPtr->priority] = tagPtr;
+ tagCnts[tagPtr->priority]++;
+ }
+ }
+ }
+ }
+
+ /*
+ * For each node in the ancestry of this line, record tag toggles
+ * for all siblings that precede that node.
+ */
+
+ for (nodePtr = indexPtr->linePtr->parentPtr; nodePtr->parentPtr != NULL;
+ nodePtr = nodePtr->parentPtr) {
+ register Node *siblingPtr;
+ register Summary *summaryPtr;
+
+ for (siblingPtr = nodePtr->parentPtr->children.nodePtr;
+ siblingPtr != nodePtr; siblingPtr = siblingPtr->nextPtr) {
+ for (summaryPtr = siblingPtr->summaryPtr; summaryPtr != NULL;
+ summaryPtr = summaryPtr->nextPtr) {
+ if (summaryPtr->toggleCount & 1) {
+ tagPtr = summaryPtr->tagPtr;
+ if (tagPtr->elideString != NULL) {
+ tagPtrs[tagPtr->priority] = tagPtr;
+ tagCnts[tagPtr->priority] += summaryPtr->toggleCount;
+ }
+ }
+ }
+ }
+ }
+
+
+ /*
+ * Now traverse from highest priority to lowest,
+ * take elided value from first odd count (= on)
+ */
+
+ for (i = numTags-1; i >=0; i--) {
+ if (tagCnts[i] & 1) {
+ #ifndef ALWAYS_SHOW_SELECTION
+ /* who would make the selection elided? */
+ if ((tagPtr == textPtr->selTagPtr) && !(textPtr->flags & GOT_FOCUS)) {
+ continue;
+ }
+ #endif
+ elide = tagPtrs[i]->elide;
+ break;
+ }
+ }
+
+ if (LOTSA_TAGS < numTags) {
+ ckfree((char *) tagCnts);
+ ckfree((char *) tagPtrs);
+ }
+
+ return elide;
+ }
/*
*----------------------------------------------------------------------
*** tkTextDisp.c 1997/07/04 22:39:41 2.0
--- ../generic/tkTextDisp.c 1997/08/16 01:20:18
***************
*** 55,60 ****
--- 55,61 ----
* be NULL). */
int underline; /* Non-zero means draw underline underneath
* text. */
+ int elide; /* Non-zero means draw text */
Tk_Uid wrapMode; /* How to handle wrap-around for this tag.
* One of tkTextCharUid, tkTextNoneUid,
* or tkTextWordUid. */
***************
*** 311,316 ****
--- 312,332 ----
int x));
static void CharUndisplayProc _ANSI_ARGS_((TkText *textPtr,
TkTextDispChunk *chunkPtr));
+
+ /*
+ Definitions of elided procs.
+ Compiler can't inline these since we use pointers to these functions.
+ ElideDisplayProc, ElideUndisplayProc special-cased for speed,
+ as potentially many elided DLine chunks if large, tag toggle-filled
+ elided region.
+ */
+ static void ElideBboxProc _ANSI_ARGS_((TkTextDispChunk *chunkPtr,
+ int index, int y, int lineHeight, int baseline,
+ int *xPtr, int *yPtr, int *widthPtr,
+ int *heightPtr));
+ static int ElideMeasureProc _ANSI_ARGS_((TkTextDispChunk *chunkPtr,
+ int x));
+
static void DisplayDLine _ANSI_ARGS_((TkText *textPtr,
DLine *dlPtr, DLine *prevPtr, Pixmap pixmap));
static void DisplayLineBackground _ANSI_ARGS_((TkText *textPtr,
***************
*** 479,485 ****
int borderPrio, borderWidthPrio, reliefPrio, bgStipplePrio;
int fgPrio, fontPrio, fgStipplePrio;
! int underlinePrio, justifyPrio, offsetPrio;
int lMargin1Prio, lMargin2Prio, rMarginPrio;
int spacing1Prio, spacing2Prio, spacing3Prio;
int overstrikePrio, tabPrio, wrapPrio;
--- 495,501 ----
int borderPrio, borderWidthPrio, reliefPrio, bgStipplePrio;
int fgPrio, fontPrio, fgStipplePrio;
! int underlinePrio, elidePrio, justifyPrio, offsetPrio;
int lMargin1Prio, lMargin2Prio, rMarginPrio;
int spacing1Prio, spacing2Prio, spacing3Prio;
int overstrikePrio, tabPrio, wrapPrio;
***************
*** 494,500 ****
tagPtrs = TkBTreeGetTags(indexPtr, &numTags);
borderPrio = borderWidthPrio = reliefPrio = bgStipplePrio = -1;
fgPrio = fontPrio = fgStipplePrio = -1;
! underlinePrio = justifyPrio = offsetPrio = -1;
lMargin1Prio = lMargin2Prio = rMarginPrio = -1;
spacing1Prio = spacing2Prio = spacing3Prio = -1;
overstrikePrio = tabPrio = wrapPrio = -1;
--- 510,516 ----
tagPtrs = TkBTreeGetTags(indexPtr, &numTags);
borderPrio = borderWidthPrio = reliefPrio = bgStipplePrio = -1;
fgPrio = fontPrio = fgStipplePrio = -1;
! underlinePrio = elidePrio = justifyPrio = offsetPrio = -1;
lMargin1Prio = lMargin2Prio = rMarginPrio = -1;
spacing1Prio = spacing2Prio = spacing3Prio = -1;
overstrikePrio = tabPrio = wrapPrio = -1;
***************
*** 612,617 ****
--- 628,638 ----
styleValues.underline = tagPtr->underline;
underlinePrio = tagPtr->priority;
}
+ if ((tagPtr->elideString != NULL)
+ && (tagPtr->priority > elidePrio)) {
+ styleValues.elide = tagPtr->elide;
+ elidePrio = tagPtr->priority;
+ }
if ((tagPtr->wrapMode != NULL)
&& (tagPtr->priority > wrapPrio)) {
styleValues.wrapMode = tagPtr->wrapMode;
***************
*** 768,774 ****
* lines with numChars > 0. Used to
* drop 0-sized chunks from the end
* of the line. */
! int offset, ascent, descent, code;
StyleValues *sValuePtr;
/*
--- 789,795 ----
* lines with numChars > 0. Used to
* drop 0-sized chunks from the end
* of the line. */
! int offset, ascent, descent, code, elide, elidesize;
StyleValues *sValuePtr;
/*
***************
*** 786,791 ****
--- 807,840 ----
dlPtr->nextPtr = NULL;
dlPtr->flags = NEW_LAYOUT;
+
+ /*
+ * special case entirely elide line as there may be 1000s or more
+ */
+ elide = TkTextIsElided(textPtr, indexPtr); /* save a malloc */
+ if (elide && indexPtr->charIndex==0) {
+ maxChars = 0;
+ for (segPtr = indexPtr->linePtr->segPtr; elide && segPtr!=NULL; segPtr = segPtr->nextPtr) {
+ if ((elidesize = segPtr->size) > 0) {
+ maxChars += elidesize;
+
+ /* if have tag toggle, chance that invisibility state changed, so bail out */
+ } else if (segPtr->typePtr == &tkTextToggleOffType || segPtr->typePtr == &tkTextToggleOnType) {
+ if (segPtr->body.toggle.tagPtr->elideString!=NULL) {
+ elide = (segPtr->typePtr == &tkTextToggleOffType) ^ (segPtr->body.toggle.tagPtr->elide==1);
+ }
+ }
+ }
+
+ if (elide) {
+ dlPtr->count = maxChars;
+ dlPtr->spaceAbove = dlPtr->spaceBelow = dlPtr->length = 0;
+ return dlPtr;
+ }
+ }
+
+
+
/*
* Each iteration of the loop below creates one TkTextDispChunk for
* the new display line. The line will always have at least one
***************
*** 797,802 ****
--- 846,852 ----
lastChunkPtr = NULL;
chunkPtr = NULL;
noCharsYet = 1;
+ elide = 0;
breakChunkPtr = NULL;
breakCharOffset = 0;
justify = TK_JUSTIFY_LEFT;
***************
*** 821,826 ****
--- 871,901 ----
}
while (segPtr != NULL) {
+
+ /* every line still gets at least one chunk due to expectations in rest of code,
+ but able to skip elided portions of line quickly */
+ /* if current chunk elided and last chunk was too, coalese */
+ if (elide && lastChunkPtr!=NULL && lastChunkPtr->displayProc == NULL/*ElideDisplayProc*/) {
+ if ((elidesize = segPtr->size - offset) > 0) {
+ curIndex.charIndex += elidesize;
+ lastChunkPtr->numChars += elidesize;
+ breakCharOffset = lastChunkPtr->breakIndex = lastChunkPtr->numChars;
+
+ /* if have tag toggle, chance that invisibility state changed */
+ } else if (segPtr->typePtr == &tkTextToggleOffType || segPtr->typePtr == &tkTextToggleOnType) {
+ if (segPtr->body.toggle.tagPtr->elideString!=NULL) {
+ elide = (segPtr->typePtr == &tkTextToggleOffType) ^ (segPtr->body.toggle.tagPtr->elide==1);
+ }
+ }
+
+ offset = 0;
+ segPtr = segPtr->nextPtr;
+ if (segPtr == NULL && chunkPtr != NULL) ckfree((char *) chunkPtr);
+
+ continue;
+ }
+
+
if (segPtr->typePtr->layoutProc == NULL) {
segPtr = segPtr->nextPtr;
offset = 0;
***************
*** 831,836 ****
--- 906,912 ----
chunkPtr->nextPtr = NULL;
}
chunkPtr->stylePtr = GetStyle(textPtr, &curIndex);
+ elide = chunkPtr->stylePtr->sValuePtr->elide;
/*
* Save style information such as justification and indentation,
***************
*** 864,870 ****
gotTab = 0;
maxChars = segPtr->size - offset;
! if (justify == TK_JUSTIFY_LEFT) {
if (segPtr->typePtr == &tkTextCharType) {
char *p;
--- 940,946 ----
gotTab = 0;
maxChars = segPtr->size - offset;
! if (!elide && justify == TK_JUSTIFY_LEFT) {
if (segPtr->typePtr == &tkTextCharType) {
char *p;
***************
*** 877,884 ****
}
}
}
-
chunkPtr->x = x;
code = (*segPtr->typePtr->layoutProc)(textPtr, &curIndex, segPtr,
offset, maxX-tabSize, maxChars, noCharsYet, wrapMode,
chunkPtr);
--- 953,973 ----
}
}
}
chunkPtr->x = x;
+ if (elide && maxChars) {
+ /* don't free style here, as other code expects to be able to do that */
+ /*breakCharOffset =*/ chunkPtr->breakIndex = chunkPtr->numChars = maxChars;
+ chunkPtr->width = 0;
+ chunkPtr->minAscent = chunkPtr->minDescent = chunkPtr->minHeight = 0;
+
+ /* would just like to point to canonical empty chunk */
+ chunkPtr->displayProc = (Tk_ChunkDisplayProc *) NULL;
+ chunkPtr->undisplayProc = (Tk_ChunkUndisplayProc *) NULL;
+ chunkPtr->measureProc = ElideMeasureProc;
+ chunkPtr->bboxProc = ElideBboxProc;
+
+ code = 1;
+ } else
code = (*segPtr->typePtr->layoutProc)(textPtr, &curIndex, segPtr,
offset, maxX-tabSize, maxChars, noCharsYet, wrapMode,
chunkPtr);
***************
*** 950,955 ****
--- 1039,1045 ----
offset = 0;
segPtr = segPtr->nextPtr;
}
+
chunkPtr = NULL;
}
if (noCharsYet) {
***************
*** 998,1003 ****
--- 1088,1094 ----
wholeLine = 0;
}
+
/*
* Make tab adjustments for the last tab stop, if there is one.
*/
***************
*** 1321,1326 ****
--- 1412,1418 ----
index.linePtr = TkBTreeFindLine(textPtr->tree, lineNum);
index.charIndex = 0;
lowestPtr = NULL;
+
do {
dlPtr = LayoutDLine(textPtr, &index);
dlPtr->nextPtr = lowestPtr;
***************
*** 1554,1559 ****
--- 1646,1653 ----
Display *display;
int height, x;
+ if (dlPtr->chunkPtr == NULL) return;
+
/*
* First, clear the area of the line to the background color for the
* text widget.
***************
*** 1620,1631 ****
--- 1714,1729 ----
* something is off to the right).
*/
+ if (chunkPtr->displayProc != NULL)
(*chunkPtr->displayProc)(chunkPtr, -chunkPtr->width,
dlPtr->spaceAbove,
dlPtr->height - dlPtr->spaceAbove - dlPtr->spaceBelow,
dlPtr->baseline - dlPtr->spaceAbove, display, pixmap,
dlPtr->y + dlPtr->spaceAbove);
} else {
+ /* don't call if elide. This tax ok since not very many visible DLine's in
+ an area, but potentially many elide ones */
+ if (chunkPtr->displayProc != NULL)
(*chunkPtr->displayProc)(chunkPtr, x, dlPtr->spaceAbove,
dlPtr->height - dlPtr->spaceAbove - dlPtr->spaceBelow,
dlPtr->baseline - dlPtr->spaceAbove, display, pixmap,
***************
*** 1714,1719 ****
--- 1812,1818 ----
StyleValues *sValuePtr;
Display *display;
+
/*
* Pass 1: scan through dlPtr from left to right. For each range of
* chunks with the same style, draw the main background for the style
***************
*** 1787,1793 ****
rightX = maxX;
}
chunkPtr2 = NULL;
! if (prevPtr != NULL) {
/*
* Find the chunk in the previous line that covers leftX.
*/
--- 1886,1892 ----
rightX = maxX;
}
chunkPtr2 = NULL;
! if (prevPtr != NULL && prevPtr->chunkPtr != NULL) {
/*
* Find the chunk in the previous line that covers leftX.
*/
***************
*** 1908,1914 ****
rightX = maxX;
}
chunkPtr2 = NULL;
! if (dlPtr->nextPtr != NULL) {
/*
* Find the chunk in the previous line that covers leftX.
*/
--- 2007,2014 ----
rightX = maxX;
}
chunkPtr2 = NULL;
! /* for (dlPtr2 = dlPtr; dlPtr2->nextPtr != NULL && dlPtr2->nextPtr->chunkPtr == NULL; dlPtr2 = dlPtr2->nextPtr) {}*/
! if (dlPtr->nextPtr != NULL && dlPtr->nextPtr->chunkPtr != NULL) {
/*
* Find the chunk in the previous line that covers leftX.
*/
***************
*** 2299,2304 ****
--- 2399,2405 ----
for (prevPtr = NULL, dlPtr = textPtr->dInfoPtr->dLinePtr;
(dlPtr != NULL) && (dlPtr->y < dInfoPtr->maxY);
prevPtr = dlPtr, dlPtr = dlPtr->nextPtr) {
+ if (dlPtr->chunkPtr == NULL) continue;
if (dlPtr->oldY != dlPtr->y) {
if (tkTextDebug) {
char string[TK_POS_CHARS];
***************
*** 2315,2320 ****
--- 2416,2422 ----
dlPtr->oldY = dlPtr->y;
dlPtr->flags &= ~NEW_LAYOUT;
}
+ /*prevPtr = dlPtr;*/
}
Tk_FreePixmap(Tk_Display(textPtr->tkwin), pixmap);
}
***************
*** 3369,3374 ****
--- 3471,3477 ----
dlPtr = LayoutDLine(textPtr, &index);
dlPtr->nextPtr = lowestPtr;
lowestPtr = dlPtr;
+ if (dlPtr->length == 0 && dlPtr->height == 0) { offset--; break; } /* elide */
TkTextIndexForwChars(&index, dlPtr->count, &index);
charsToCount -= dlPtr->count;
} while ((charsToCount > 0)
***************
*** 3381,3387 ****
break;
}
}
!
/*
* Discard the display lines, then either return or prepare
* for the next display line to lay out.
--- 3484,3490 ----
break;
}
}
!
/*
* Discard the display lines, then either return or prepare
* for the next display line to lay out.
***************
*** 3410,3421 ****
--- 3513,3526 ----
TkBTreeNumLines(textPtr->tree));
for (i = 0; i < offset; i++) {
dlPtr = LayoutDLine(textPtr, &textPtr->topIndex);
+ if (dlPtr->length == 0 && dlPtr->height == 0) offset++;
dlPtr->nextPtr = NULL;
TkTextIndexForwChars(&textPtr->topIndex, dlPtr->count, &new);
FreeDLines(textPtr, dlPtr, (DLine *) NULL, 0);
if (new.linePtr == lastLinePtr) {
break;
}
+
textPtr->topIndex = new;
}
}
***************
*** 3949,3955 ****
* index of the character nearest to (x,y). */
{
TextDInfo *dInfoPtr = textPtr->dInfoPtr;
! register DLine *dlPtr;
register TkTextDispChunk *chunkPtr;
/*
--- 4054,4060 ----
* index of the character nearest to (x,y). */
{
TextDInfo *dInfoPtr = textPtr->dInfoPtr;
! register DLine *dlPtr, *validdlPtr;
register TkTextDispChunk *chunkPtr;
/*
***************
*** 3982,3989 ****
* Find the display line containing the desired y-coordinate.
*/
! for (dlPtr = dInfoPtr->dLinePtr; y >= (dlPtr->y + dlPtr->height);
dlPtr = dlPtr->nextPtr) {
if (dlPtr->nextPtr == NULL) {
/*
* Y-coordinate is off the bottom of the displayed text.
--- 4087,4095 ----
* Find the display line containing the desired y-coordinate.
*/
! for (dlPtr = validdlPtr = dInfoPtr->dLinePtr; y >= (dlPtr->y + dlPtr->height);
dlPtr = dlPtr->nextPtr) {
+ if (dlPtr->chunkPtr !=NULL) validdlPtr = dlPtr;
if (dlPtr->nextPtr == NULL) {
/*
* Y-coordinate is off the bottom of the displayed text.
***************
*** 3994,3999 ****
--- 4100,4107 ----
break;
}
}
+ if (dlPtr->chunkPtr == NULL) dlPtr = validdlPtr;
+
/*
* Scan through the line's chunks to find the one that contains
***************
*** 4005,4016 ****
*indexPtr = dlPtr->index;
x = x - dInfoPtr->x + dInfoPtr->curPixelOffset;
for (chunkPtr = dlPtr->chunkPtr; x >= (chunkPtr->x + chunkPtr->width);
! indexPtr->charIndex += chunkPtr->numChars,
! chunkPtr = chunkPtr->nextPtr) {
if (chunkPtr->nextPtr == NULL) {
indexPtr->charIndex += chunkPtr->numChars - 1;
return;
! }
}
/*
--- 4113,4124 ----
*indexPtr = dlPtr->index;
x = x - dInfoPtr->x + dInfoPtr->curPixelOffset;
for (chunkPtr = dlPtr->chunkPtr; x >= (chunkPtr->x + chunkPtr->width);
! indexPtr->charIndex += chunkPtr->numChars,
! chunkPtr = chunkPtr->nextPtr) {
if (chunkPtr->nextPtr == NULL) {
indexPtr->charIndex += chunkPtr->numChars - 1;
return;
! }
}
/*
***************
*** 4166,4171 ****
--- 4274,4280 ----
{
TextDInfo *dInfoPtr = textPtr->dInfoPtr;
DLine *dlPtr;
+ int dlx;
/*
* Make sure that all of the screen layout information is up to date.
***************
*** 4184,4191 ****
return -1;
}
! *xPtr = dInfoPtr->x - dInfoPtr->curPixelOffset + dlPtr->chunkPtr->x;
! *widthPtr = dlPtr->length - dlPtr->chunkPtr->x;
*yPtr = dlPtr->y;
if ((dlPtr->y + dlPtr->height) > dInfoPtr->maxY) {
*heightPtr = dInfoPtr->maxY - dlPtr->y;
--- 4293,4301 ----
return -1;
}
! dlx = (dlPtr->chunkPtr != NULL? dlPtr->chunkPtr->x: 0);
! *xPtr = dInfoPtr->x - dInfoPtr->curPixelOffset + dlx;
! *widthPtr = dlPtr->length - dlx;
*yPtr = dlPtr->y;
if ((dlPtr->y + dlPtr->height) > dInfoPtr->maxY) {
*heightPtr = dInfoPtr->maxY - dlPtr->y;
***************
*** 4196,4201 ****
--- 4306,4346 ----
return 0;
}
+ static void
+ ElideBboxProc(chunkPtr, index, y, lineHeight, baseline, xPtr, yPtr,
+ widthPtr, heightPtr)
+ TkTextDispChunk *chunkPtr; /* Chunk containing desired char. */
+ int index; /* Index of desired character within
+ * the chunk. */
+ int y; /* Topmost pixel in area allocated
+ * for this line. */
+ int lineHeight; /* Height of line, in pixels. */
+ int baseline; /* Location of line's baseline, in
+ * pixels measured down from y. */
+ int *xPtr, *yPtr; /* Gets filled in with coords of
+ * character's upper-left pixel.
+ * X-coord is in same coordinate
+ * system as chunkPtr->x. */
+ int *widthPtr; /* Gets filled in with width of
+ * character, in pixels. */
+ int *heightPtr; /* Gets filled in with height of
+ * character, in pixels. */
+ {
+ *xPtr = chunkPtr->x;
+ *yPtr = y;
+ *widthPtr = *heightPtr = 0;
+ }
+
+
+ static int
+ ElideMeasureProc(chunkPtr, x)
+ TkTextDispChunk *chunkPtr; /* Chunk containing desired coord. */
+ int x; /* X-coordinate, in same coordinate
+ * system as chunkPtr->x. */
+ {
+ return 0 /*chunkPtr->numChars - 1*/;
+ }
+
/*
*--------------------------------------------------------------
*
***************
*** 4421,4427 ****
* Draw the text, underline, and overstrike for this chunk.
*/
! if (ciPtr->numChars > offsetChars) {
int numChars = ciPtr->numChars - offsetChars;
char *string = ciPtr->chars + offsetChars;
--- 4566,4572 ----
* Draw the text, underline, and overstrike for this chunk.
*/
! if (!sValuePtr->elide && ciPtr->numChars > offsetChars) {
int numChars = ciPtr->numChars - offsetChars;
char *string = ciPtr->chars + offsetChars;
*** tkTextTag.c 1997/07/04 22:39:41 2.0
--- ../generic/tkTextTag.c 1997/08/15 22:20:32
***************
*** 63,68 ****
--- 63,71 ----
{TK_CONFIG_STRING, "-underline", (char *) NULL, (char *) NULL,
(char *) NULL, Tk_Offset(TkTextTag, underlineString),
TK_CONFIG_NULL_OK},
+ {TK_CONFIG_STRING, "-elide", (char *) NULL, (char *) NULL,
+ (char *) NULL, Tk_Offset(TkTextTag, elideString),
+ TK_CONFIG_NULL_OK},
{TK_CONFIG_UID, "-wrap", (char *) NULL, (char *) NULL,
(char *) NULL, Tk_Offset(TkTextTag, wrapMode),
TK_CONFIG_NULL_OK},
***************
*** 378,383 ****
--- 381,392 ----
return TCL_ERROR;
}
}
+ if (tagPtr->elideString != NULL) {
+ if (Tcl_GetBoolean(interp, tagPtr->elideString,
+ &tagPtr->elide) != TCL_OK) {
+ return TCL_ERROR;
+ }
+ }
if ((tagPtr->wrapMode != NULL)
&& (tagPtr->wrapMode != tkTextCharUid)
&& (tagPtr->wrapMode != tkTextNoneUid)
***************
*** 419,424 ****
--- 428,434 ----
|| (tagPtr->spacing3String != NULL)
|| (tagPtr->tabString != NULL)
|| (tagPtr->underlineString != NULL)
+ || (tagPtr->elideString != NULL)
|| (tagPtr->wrapMode != NULL)) {
tagPtr->affectsDisplay = 1;
}
***************
*** 811,816 ****
--- 821,828 ----
tagPtr->tabArrayPtr = NULL;
tagPtr->underlineString = NULL;
tagPtr->underline = 0;
+ tagPtr->elideString = NULL;
+ tagPtr->elide = 0;
tagPtr->wrapMode = NULL;
tagPtr->affectsDisplay = 0;
textPtr->numTags++;
***************
*** 934,939 ****
--- 946,954 ----
}
if (tagPtr->underlineString != NULL) {
ckfree(tagPtr->underlineString);
+ }
+ if (tagPtr->elideString != NULL) {
+ ckfree(tagPtr->elideString);
}
ckfree((char *) tagPtr);
}
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