diff options
Diffstat (limited to 'generic/tkTextBTree.c')
| -rw-r--r-- | generic/tkTextBTree.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/generic/tkTextBTree.c b/generic/tkTextBTree.c index b2db5aa..8ac05ea 100644 --- a/generic/tkTextBTree.c +++ b/generic/tkTextBTree.c @@ -11,7 +11,7 @@ * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. * - * RCS: @(#) $Id: tkTextBTree.c,v 1.11 2003/12/15 11:51:06 vincentdarley Exp $ + * RCS: @(#) $Id: tkTextBTree.c,v 1.12 2004/01/07 16:28:23 vincentdarley Exp $ */ #include "tkInt.h" @@ -1002,6 +1002,10 @@ TkBTreeFindPixelLine(tree, pixels, pixelOffset) return NULL; } + if (nodePtr->numPixels == 0) { + panic("TkBTreeFindPixelLine called with empty window"); + } + /* * Work down through levels of the tree until a node is found at * level 0. @@ -1012,7 +1016,7 @@ TkBTreeFindPixelLine(tree, pixels, pixelOffset) nodePtr->numPixels <= pixelsLeft; nodePtr = nodePtr->nextPtr) { if (nodePtr == NULL) { - panic("TkBTreeFindLine ran out of nodes"); + panic("TkBTreeFindPixelLine ran out of nodes"); } pixelsLeft -= nodePtr->numPixels; } @@ -1026,7 +1030,7 @@ TkBTreeFindPixelLine(tree, pixels, pixelOffset) linePtr->pixelHeight < pixelsLeft; linePtr = linePtr->nextPtr) { if (linePtr == NULL) { - panic("TkBTreeFindLine ran out of lines"); + panic("TkBTreeFindPixelLine ran out of lines"); } pixelsLeft -= linePtr->pixelHeight; } |