diff options
Diffstat (limited to 'generic/tkTextDisp.c')
| -rw-r--r-- | generic/tkTextDisp.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/generic/tkTextDisp.c b/generic/tkTextDisp.c index 701fe96..7a97aa7 100644 --- a/generic/tkTextDisp.c +++ b/generic/tkTextDisp.c @@ -13,7 +13,7 @@ * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. * - * RCS: @(#) $Id: tkTextDisp.c,v 1.18 2003/10/31 09:02:10 vincentdarley Exp $ + * RCS: @(#) $Id: tkTextDisp.c,v 1.19 2003/10/31 14:21:49 vincentdarley Exp $ */ #include "tkPort.h" @@ -5636,7 +5636,16 @@ DlineIndexOfX(textPtr, dlPtr, x, indexPtr) *indexPtr = dlPtr->index; x = x - dInfoPtr->x + dInfoPtr->curXPixelOffset; - for (chunkPtr = dlPtr->chunkPtr; x >= (chunkPtr->x + chunkPtr->width); + chunkPtr = dlPtr->chunkPtr; + + if (chunkPtr == NULL) { + /* + * This may occur if everything is elided + */ + return; + } + + for (; x >= (chunkPtr->x + chunkPtr->width); indexPtr->byteIndex += chunkPtr->numBytes, chunkPtr = chunkPtr->nextPtr) { if (chunkPtr->nextPtr == NULL) { |