#ifndef GLYPH_BUFFER_H
#define GLYPH_BUFFER_H
#include <CoreGraphics/CoreGraphics.h>
#define MAX_GLYPH_EXPANSION 4
#define GLYPH_BUFFER_SIZE 2048
#if __APPLE__
#elif PLATFORM(WIN) || PLATFORM(GDK)
#include <cairo.h>
#include "FloatSize.h"
#endif
#include <wtf/Vector.h>
namespace WebCore
{
typedef unsigned short Glyph;
class FontData;
#if __APPLE__
typedef Glyph GlyphBufferGlyph;
typedef CGSize GlyphBufferAdvance;
#elif PLATFORM(WIN) || PLATFORM(GDK)
typedef cairo_glyph_t GlyphBufferGlyph;
typedef FloatSize GlyphBufferAdvance;
#endif
class GlyphBuffer
{
public:
GlyphBuffer() {};
bool isEmpty() const { return m_fontData.isEmpty(); }
int size() const { return m_fontData.size(); }
void clear()
{
m_fontData.clear();
m_glyphs.clear();
m_advances.clear();
}
GlyphBufferGlyph* glyphs(int from) const { return ((GlyphBufferGlyph*)m_glyphs.data()) + from; }
GlyphBufferAdvance* advances(int from) const { return ((GlyphBufferAdvance*)m_advances.data()) + from; }
const FontData* fontDataAt(int index) const { return m_fontData[index]; }
void swap(int index1, int index2)
{
const FontData* f = m_fontData[index1];
m_fontData[index1] = m_fontData[index2];
m_fontData[index2] = f;
GlyphBufferGlyph g = m_glyphs[index1];
m_glyphs[index1] = m_glyphs[index2];
m_glyphs[index2] = g;
GlyphBufferAdvance s = m_advances[index1];
m_advances[index1] = m_advances[index2];
m_advances[index2] = s;
}
Glyph glyphAt(int index) const
{
#if __APPLE__
return m_glyphs[index];
#elif PLATFORM(WIN) || PLATFORM(GDK)
return m_glyphs[index].index;
#endif
}
float advanceAt(int index) const
{
#if __APPLE__
return m_advances[index].width;
#elif PLATFORM(WIN) || PLATFORM(GDK)
return m_advances[index].width();
#endif
}
void add(Glyph glyph, const FontData* font, float width)
{
m_fontData.append(font);
#if __APPLE__
m_glyphs.append(glyph);
CGSize advance;
advance.width = width;
advance.height = 0;
m_advances.append(advance);
#elif PLATFORM(WIN) || PLATFORM(GDK)
cairo_glyph_t cairoGlyph;
cairoGlyph.index = glyph;
cairoGlyph.y = 0;
m_glyphs.append(cairoGlyph);
m_advances.append(FloatSize(width, 0));
#endif
}
private:
Vector<const FontData*, GLYPH_BUFFER_SIZE> m_fontData;
Vector<GlyphBufferGlyph, GLYPH_BUFFER_SIZE> m_glyphs;
Vector<GlyphBufferAdvance, GLYPH_BUFFER_SIZE> m_advances;
};
}
#endif