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Fix tab width in MSW GetPartialTextExtents

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The width of \t determined by GetTextExtentExPoint is 0. Determine the actual
width using DoGetTextExtent and update the widths accordingly.
This commit is contained in:
Maarten Bent 2019-08-14 20:38:36 +02:00
parent 2508efdd6e
commit 028458edbb
1 changed files with 18 additions and 0 deletions
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18
src/msw/textmeasure.cpp
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@ -167,5 +167,23 @@ bool wxTextMeasure::DoGetPartialTextExtents(const wxString& text,
return false;
}
// The width of \t determined by GetTextExtentExPoint is 0. Determine the
// actual width using DoGetTextExtent and update the widths accordingly.
int offset = 0;
int tabWidth = 0;
int tabHeight = 0;
for ( unsigned i = 0; i < text.length(); ++i )
{
if ( text[i] == '\t' )
{
if ( tabWidth == 0 )
{
DoGetTextExtent("\t", &tabWidth, &tabHeight);
}
offset += tabWidth;
}
widths[i] += offset;
}
return true;
}