diff options
Diffstat (limited to 'generic/tkTextDisp.c')
| -rw-r--r-- | generic/tkTextDisp.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/generic/tkTextDisp.c b/generic/tkTextDisp.c index d0cd4d2..13695e8 100644 --- a/generic/tkTextDisp.c +++ b/generic/tkTextDisp.c @@ -2005,8 +2005,21 @@ UpdateDisplayInfo( * widget. */ - lineNum = -1; - bytesToCount = 0; /* Stop compiler warning. */ + if (textPtr->start == textPtr->end) { + /* + * Empty peer widget. + */ + lineNum = -1; + bytesToCount = 0; /* Stop compiler warning. */ + } else { + /* + * Widget that was empty, but no longer is. + * (Bug 1630254) + */ + lineNum = TkBTreeNumLines(textPtr->sharedTextPtr->tree, + textPtr) - 1; + bytesToCount = INT_MAX; + } } else { lineNum = TkBTreeLinesTo(textPtr, dInfoPtr->dLinePtr->index.linePtr); |