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Do some sanity checks in DoDrawText to make sure we actually have some glyphs

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@20055 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
David Elliott 2003-04-07 04:04:10 +00:00
parent ce50c4d1c6
commit 13fc3db40e
1 changed files with 5 additions and 1 deletions
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6
src/cocoa/dc.mm
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@ -107,7 +107,11 @@ void wxDC::DoDrawText(const wxString& text, wxCoord x, wxCoord y)
NSRange glyphRange = [sm_cocoaNSLayoutManager glyphRangeForTextContainer:sm_cocoaNSTextContainer];
NSRect usedRect = [sm_cocoaNSLayoutManager usedRectForTextContainer:sm_cocoaNSTextContainer];
// NOTE: We'll crash trying to get the location of glyphAtIndex:0 if
// there is no length or we don't start at zero
if(!glyphRange.length)
return;
wxASSERT_MSG(glyphRange.location==0,"glyphRange must begin at zero");
NSAffineTransform *transform = [NSAffineTransform transform];
[transform translateXBy:x yBy:y];