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fix vertical text on Lion

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M    src/ports/SkFontHost_mac_coretext.cpp



git-svn-id: http://skia.googlecode.com/svn/trunk@2906 2bbb7eff-a529-9590-31e7-b0007b416f81
This commit is contained in:
caryclark@google.com 2011-12-20 20:06:37 +00:00
parent ae814c7476
commit 5d80f903cf
1 changed files with 7 additions and 1 deletions
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8
src/ports/SkFontHost_mac_coretext.cpp
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@ -667,6 +667,7 @@ SkScalerContext_Mac::SkScalerContext_Mac(const SkDescriptor* desc)
} else {
fVerticalMatrix.preRotate(SkIntToScalar(90));
}
fVerticalMatrix.postScale(SK_Scalar1, -SK_Scalar1);
}
fGlyphCount = SkToU16(numGlyphs);
fDoSubPosition = SkToBool(fRec.fFlags & kSubpixelPositioning_Flag);
@ -791,8 +792,13 @@ void SkScalerContext_Mac::getVerticalOffset(CGGlyph glyphID, SkIPoint* offset) c
SkFloatToScalar(vertOffset.height)};
SkPoint floatOffset;
fVerticalMatrix.mapPoints(&floatOffset, &trans, 1);
if (isLion()) {
// Lion changed functionality from Snow Leopard, though it's not clear why
// this is required here; it was found through trial and error.
fUnitMatrix.mapPoints(&floatOffset, 1);
}
offset->fX = SkScalarRound(floatOffset.fX);
offset->fY = -SkScalarRound(floatOffset.fY);
offset->fY = SkScalarRound(floatOffset.fY);
}
/* from http://developer.apple.com/fonts/TTRefMan/RM06/Chap6loca.html