OpenTypeVerticalData.h [plain text]
#ifndef OpenTypeVerticalData_h
#define OpenTypeVerticalData_h
#if ENABLE(OPENTYPE_VERTICAL)
#include "Glyph.h"
#include <wtf/HashMap.h>
#include <wtf/PassRefPtr.h>
#include <wtf/RefCounted.h>
#include <wtf/Vector.h>
namespace WebCore {
class Font;
class FontPlatformData;
class GlyphPage;
class OpenTypeVerticalData : public RefCounted<OpenTypeVerticalData> {
public:
static RefPtr<OpenTypeVerticalData> create(const FontPlatformData&);
bool hasVerticalMetrics() const { return !m_advanceHeights.isEmpty(); }
float advanceHeight(const Font*, Glyph) const;
void getVerticalTranslationsForGlyphs(const Font*, const Glyph*, size_t, float* outXYArray) const;
void substituteWithVerticalGlyphs(const Font*, GlyphPage*) const;
private:
explicit OpenTypeVerticalData(const FontPlatformData&, Vector<uint16_t>&& advanceWidths);
void loadMetrics(const FontPlatformData&);
void loadVerticalGlyphSubstitutions(const FontPlatformData&);
bool hasVORG() const { return !m_vertOriginY.isEmpty(); }
HashMap<Glyph, Glyph> m_verticalGlyphMap;
Vector<uint16_t> m_advanceWidths;
Vector<uint16_t> m_advanceHeights;
Vector<int16_t> m_topSideBearings;
int16_t m_defaultVertOriginY { 0 };
HashMap<Glyph, int16_t> m_vertOriginY;
};
}
#endif // ENABLE(OPENTYPE_VERTICAL)
#endif // OpenTypeVerticalData_h