diff options
| -rw-r--r-- | generic/tkTextDisp.c | 44 |
1 files changed, 23 insertions, 21 deletions
diff --git a/generic/tkTextDisp.c b/generic/tkTextDisp.c index 7e43bf1..4bfdd65 100644 --- a/generic/tkTextDisp.c +++ b/generic/tkTextDisp.c @@ -12,7 +12,7 @@ * 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 1.66 2007/09/20 22:59:40 dkf Exp $ + * RCS: @(#) $Id: tkTextDisp.c,v 1.67 2007/10/12 03:06:08 das Exp $ */ #include "tkInt.h" @@ -7515,32 +7515,34 @@ CharUndisplayProc( { CharInfo *ciPtr = (CharInfo *) chunkPtr->clientData; + if (ciPtr) { #if TK_LAYOUT_WITH_BASE_CHUNKS - if (chunkPtr == ciPtr->baseChunkPtr) { - /* - * Basechunks are undisplayed first, when DLines are freed or - * partially freed, so this makes sure we don't access their data any - * more. - */ + if (chunkPtr == ciPtr->baseChunkPtr) { + /* + * Basechunks are undisplayed first, when DLines are freed or + * partially freed, so this makes sure we don't access their data + * any more. + */ - FreeBaseChunk(chunkPtr); - } else if (ciPtr->baseChunkPtr != NULL) { - /* - * When other char chunks are undisplayed, drop their characters from - * the base chunk. This usually happens, when they are last in a line - * and need to be re-layed out. - */ + FreeBaseChunk(chunkPtr); + } else if (ciPtr->baseChunkPtr != NULL) { + /* + * When other char chunks are undisplayed, drop their characters + * from the base chunk. This usually happens, when they are last + * in a line and need to be re-layed out. + */ - RemoveFromBaseChunk(chunkPtr); - } + RemoveFromBaseChunk(chunkPtr); + } - ciPtr->baseChunkPtr = NULL; - ciPtr->chars = NULL; - ciPtr->numBytes = 0; + ciPtr->baseChunkPtr = NULL; + ciPtr->chars = NULL; + ciPtr->numBytes = 0; #endif /* TK_LAYOUT_WITH_BASE_CHUNKS */ - ckfree((char *) ciPtr); - chunkPtr->clientData = NULL; + ckfree((char *) ciPtr); + chunkPtr->clientData = NULL; + } } /* |