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avoid gtk assert on negative window size

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@39553 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Paul Cornett 2006-06-04 21:18:45 +00:00
parent 3e0630be8a
commit fb18afdd86
1 changed files with 1 additions and 1 deletions
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2
src/gtk/scrolwin.cpp
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@ -92,7 +92,7 @@ void wxScrollHelperNative::DoAdjustScrollbar(GtkRange* range,
// with a page size of 1. This will also clamp position to 0.
int upper = 1;
int page_size = 1;
if (pixelsPerLine > 0 && winSize < virtSize)
if (pixelsPerLine > 0 && winSize > 0 && winSize < virtSize)
{
upper = (virtSize + pixelsPerLine - 1) / pixelsPerLine;
page_size = winSize / pixelsPerLine;