diff options
Diffstat (limited to 'generic/tkTextDisp.c')
| -rw-r--r-- | generic/tkTextDisp.c | 71 |
1 files changed, 47 insertions, 24 deletions
diff --git a/generic/tkTextDisp.c b/generic/tkTextDisp.c index 02666d0..74620fc 100644 --- a/generic/tkTextDisp.c +++ b/generic/tkTextDisp.c @@ -2541,7 +2541,7 @@ DisplayLineBackground( * current x coordinate? */ int matchRight; /* Does line's style match its neighbor just * to the right of the current x-coord? */ - int minX, maxX, xOffset; + int minX, maxX, xOffset, bw; StyleValues *sValuePtr; Display *display; #ifndef TK_NO_DOUBLE_BUFFERING @@ -2612,16 +2612,25 @@ DisplayLineBackground( rightX = leftX + 32767; } + /* + * Prevent the borders from leaking on adjacent characters, + * which would happen for too large border width. + */ + + bw = sValuePtr->borderWidth; + if (leftX + sValuePtr->borderWidth > rightX) { + bw = rightX - leftX; + } + XFillRectangle(display, pixmap, chunkPtr->stylePtr->bgGC, leftX + xOffset, y, (unsigned int) (rightX - leftX), (unsigned int) dlPtr->height); if (sValuePtr->relief != TK_RELIEF_FLAT) { Tk_3DVerticalBevel(textPtr->tkwin, pixmap, sValuePtr->border, - leftX + xOffset, y, sValuePtr->borderWidth, - dlPtr->height, 1, sValuePtr->relief); + leftX + xOffset, y, bw, dlPtr->height, 1, + sValuePtr->relief); Tk_3DVerticalBevel(textPtr->tkwin, pixmap, sValuePtr->border, - rightX - sValuePtr->borderWidth + xOffset, - y, sValuePtr->borderWidth, dlPtr->height, 0, + rightX - bw + xOffset, y, bw, dlPtr->height, 0, sValuePtr->relief); } } @@ -2718,22 +2727,29 @@ DisplayLineBackground( matchRight = (nextPtr2 != NULL) && SAME_BACKGROUND(nextPtr2->stylePtr, chunkPtr->stylePtr); if (matchLeft && !matchRight) { + bw = sValuePtr->borderWidth; + if (rightX2 - sValuePtr->borderWidth < leftX) { + bw = rightX2 - leftX; + } if (sValuePtr->relief != TK_RELIEF_FLAT) { Tk_3DVerticalBevel(textPtr->tkwin, pixmap, sValuePtr->border, - rightX2 - sValuePtr->borderWidth + xOffset, y, - sValuePtr->borderWidth, sValuePtr->borderWidth, 0, - sValuePtr->relief); + rightX2 - bw + xOffset, y, bw, + sValuePtr->borderWidth, 0, sValuePtr->relief); } - leftX = rightX2 - sValuePtr->borderWidth; + leftX = rightX2 - bw; leftXIn = 0; } else if (!matchLeft && matchRight && (sValuePtr->relief != TK_RELIEF_FLAT)) { + bw = sValuePtr->borderWidth; + if (rightX2 + sValuePtr->borderWidth > rightX) { + bw = rightX - rightX2; + } Tk_3DVerticalBevel(textPtr->tkwin, pixmap, sValuePtr->border, - rightX2 + xOffset, y, sValuePtr->borderWidth, - sValuePtr->borderWidth, 1, sValuePtr->relief); + rightX2 + xOffset, y, bw, sValuePtr->borderWidth, + 1, sValuePtr->relief); Tk_3DHorizontalBevel(textPtr->tkwin, pixmap, sValuePtr->border, - leftX + xOffset, y, rightX2 + sValuePtr->borderWidth - - leftX, sValuePtr->borderWidth, leftXIn, 0, 1, + leftX + xOffset, y, rightX2 + bw - leftX, + sValuePtr->borderWidth, leftXIn, 0, 1, sValuePtr->relief); } @@ -2765,7 +2781,7 @@ DisplayLineBackground( chunkPtr2 = NULL; if (dlPtr->nextPtr != NULL && dlPtr->nextPtr->chunkPtr != NULL) { /* - * Find the chunk in the previous line that covers leftX. + * Find the chunk in the next line that covers leftX. */ nextPtr2 = dlPtr->nextPtr->chunkPtr; @@ -2821,26 +2837,33 @@ DisplayLineBackground( matchRight = (nextPtr2 != NULL) && SAME_BACKGROUND(nextPtr2->stylePtr, chunkPtr->stylePtr); if (matchLeft && !matchRight) { + bw = sValuePtr->borderWidth; + if (rightX2 - sValuePtr->borderWidth < leftX) { + bw = rightX2 - leftX; + } if (sValuePtr->relief != TK_RELIEF_FLAT) { Tk_3DVerticalBevel(textPtr->tkwin, pixmap, sValuePtr->border, - rightX2 - sValuePtr->borderWidth + xOffset, + rightX2 - bw + xOffset, y + dlPtr->height - sValuePtr->borderWidth, - sValuePtr->borderWidth, sValuePtr->borderWidth, 0, - sValuePtr->relief); + bw, sValuePtr->borderWidth, 0, sValuePtr->relief); } - leftX = rightX2 - sValuePtr->borderWidth; + leftX = rightX2 - bw; leftXIn = 1; } else if (!matchLeft && matchRight && (sValuePtr->relief != TK_RELIEF_FLAT)) { + bw = sValuePtr->borderWidth; + if (rightX2 + sValuePtr->borderWidth > rightX) { + bw = rightX - rightX2; + } Tk_3DVerticalBevel(textPtr->tkwin, pixmap, sValuePtr->border, - rightX2 + xOffset, y + dlPtr->height - - sValuePtr->borderWidth, sValuePtr->borderWidth, + rightX2 + xOffset, + y + dlPtr->height - sValuePtr->borderWidth, bw, sValuePtr->borderWidth, 1, sValuePtr->relief); Tk_3DHorizontalBevel(textPtr->tkwin, pixmap, sValuePtr->border, - leftX + xOffset, y + dlPtr->height - - sValuePtr->borderWidth, rightX2 + sValuePtr->borderWidth - - leftX, sValuePtr->borderWidth, leftXIn, 1, 0, - sValuePtr->relief); + leftX + xOffset, + y + dlPtr->height - sValuePtr->borderWidth, + rightX2 + bw - leftX, sValuePtr->borderWidth, leftXIn, + 1, 0, sValuePtr->relief); } nextChunk2b: |