AuroraMiddleware/harfbuzz
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[icu_le] Fix scaling

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Seems to work...
This commit is contained in:
Behdad Esfahbod 2013-05-23 15:43:02 -04:00
parent 601526392d
commit b9408d24f3
3 changed files with 25 additions and 9 deletions
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2
src/hb-icu-le.cc
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@ -63,6 +63,8 @@ _hb_icu_le_shaper_font_data_create (hb_font_t *font)
{
LEErrorCode status = LE_NO_ERROR;
hb_icu_le_shaper_font_data_t *data = new PortableFontInstance (font->face,
1,
1,
font->x_scale,
font->y_scale,
status);

23
src/hb-icu-le/PortableFontInstance.cpp
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@ -25,8 +25,16 @@
#include <string.h>
PortableFontInstance::PortableFontInstance(hb_face_t *face, float xScale, float yScale, LEErrorCode &status)
: fFace(face), fXScale(xScale), fYScale(yScale), fUnitsPerEM(0), fAscent(0), fDescent(0), fLeading(0),
PortableFontInstance::PortableFontInstance(hb_face_t *face,
float xScale,
float yScale,
unsigned int xPixelsPerEM,
unsigned int yPixelsPerEM,
LEErrorCode &status)
: fFace(face),
fXScale(xScale), fYScale(yScale),
fXPixelsPerEM(xPixelsPerEM), fYPixelsPerEM(yPixelsPerEM),
fUnitsPerEM(0), fAscent(0), fDescent(0), fLeading(0),
fNAMETable(NULL), fNameCount(0), fNameStringOffset(0), fCMAPMapper(NULL), fHMTXTable(NULL), fNumGlyphs(0), fNumLongHorMetrics(0)
{
if (LE_FAILURE(status)) {
@ -194,8 +202,7 @@ void PortableFontInstance::getGlyphAdvance(LEGlyphID glyph, LEPoint &advance) co
index = fNumLongHorMetrics - 1;
}
advance.fX = xUnitsToPoints(SWAPW(fHMTXTable->hMetrics[index].advanceWidth));
advance.fY = 0;
transformFunits (SWAPW(fHMTXTable->hMetrics[index].advanceWidth), 0, advance);
}
le_bool PortableFontInstance::getGlyphPoint(LEGlyphID /*glyph*/, le_int32 /*pointNumber*/, LEPoint &/*point*/) const
@ -249,20 +256,20 @@ LEGlyphID PortableFontInstance::mapCharToGlyph(LEUnicode32 ch) const
float PortableFontInstance::getXPixelsPerEm() const
{
return fXScale;
return fXPixelsPerEM;
}
float PortableFontInstance::getYPixelsPerEm() const
{
return fYScale;
return fYPixelsPerEM;
}
float PortableFontInstance::getScaleFactorX() const
{
return 1.0;
return fXScale;
}
float PortableFontInstance::getScaleFactorY() const
{
return 1.0;
return fYScale;
}

9
src/hb-icu-le/PortableFontInstance.h
View File

@ -36,6 +36,8 @@ private:
float fXScale;
float fYScale;
unsigned int fXPixelsPerEM;
unsigned int fYPixelsPerEM;
le_int32 fUnitsPerEM;
le_int32 fAscent;
le_int32 fDescent;
@ -59,7 +61,12 @@ protected:
hb_blob_t *readFontTable(LETag tableTag) const;
public:
PortableFontInstance(hb_face_t *face, float xScale, float yScale, LEErrorCode &status);
PortableFontInstance(hb_face_t *face,
float xScale,
float yScale,
unsigned int xPixelsPerEM,
unsigned int yPixelsPerEM,
LEErrorCode &status);
virtual ~PortableFontInstance();