diff options
| author | fvogel <fvogelnew1@free.fr> | 2014-12-03 23:16:02 (GMT) |
|---|---|---|
| committer | fvogel <fvogelnew1@free.fr> | 2014-12-03 23:16:02 (GMT) |
| commit | 71455d5a91a1b922d393d253d98ff4fbdbac8b6b (patch) | |
| tree | 75cdc5d3f64b4c1a5137aea4c9f758005f99a314 /generic/tkTextDisp.c | |
| parent | 92c3e64dc6cd30fd0a261254be7bba659a3d5534 (diff) | |
| download | tk-71455d5a91a1b922d393d253d98ff4fbdbac8b6b.zip tk-71455d5a91a1b922d393d253d98ff4fbdbac8b6b.tar.gz tk-71455d5a91a1b922d393d253d98ff4fbdbac8b6b.tar.bz2 | |
Checked dlineinfo caller of FindDLine, comments added
Diffstat (limited to 'generic/tkTextDisp.c')
| -rw-r--r-- | generic/tkTextDisp.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/generic/tkTextDisp.c b/generic/tkTextDisp.c index c3ea9e0..b9790db 100644 --- a/generic/tkTextDisp.c +++ b/generic/tkTextDisp.c @@ -6972,6 +6972,15 @@ TkTextDLineInfo( */ dlPtr = FindDLine(textPtr, dInfoPtr->dLinePtr, indexPtr); + + /* + * Two cases shall be trapped here because the logic later really + * needs dlPtr to be the display line containing indexPtr: + * 1. if no display line contains the desired index (NULL dlPtr) + * 2. if indexPtr is before the first display line, in which case + * dlPtr currently points to the first display line + */ + if ((dlPtr == NULL) || (TkTextIndexCmp(&dlPtr->index, indexPtr) > 0)) { return -1; } |