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/*
* Copyright (C) 2006, 2009, 2011 Apple Inc. All rights reserved.
* Copyright (C) 2007-2008 Torch Mobile Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef GlyphBuffer_h
#define GlyphBuffer_h
#include "platform/fonts/Glyph.h"
#include "platform/geometry/FloatSize.h"
#include "wtf/Vector.h"
namespace WebCore {
class SimpleFontData;
class GlyphBuffer {
public:
bool isEmpty() const { return m_fontData.isEmpty(); }
unsigned size() const { return m_fontData.size(); }
void clear()
{
m_fontData.clear();
m_glyphs.clear();
m_advances.clear();
}
Glyph* glyphs(unsigned from) { return m_glyphs.data() + from; }
FloatSize* advances(unsigned from) { return m_advances.data() + from; }
const Glyph* glyphs(unsigned from) const { return m_glyphs.data() + from; }
const FloatSize* advances(unsigned from) const { return m_advances.data() + from; }
const SimpleFontData* fontDataAt(unsigned index) const { return m_fontData[index]; }
Glyph glyphAt(unsigned index) const
{
return m_glyphs[index];
}
FloatSize advanceAt(unsigned index) const
{
return m_advances[index];
}
void add(Glyph glyph, const SimpleFontData* font, float width)
{
add(glyph, font, FloatSize(width, 0));
}
void add(Glyph glyph, const SimpleFontData* font, const FloatSize& advance)
{
m_fontData.append(font);
m_glyphs.append(glyph);
m_advances.append(advance);
}
void reverse()
{
m_fontData.reverse();
m_glyphs.reverse();
m_advances.reverse();
}
void expandLastAdvance(float width)
{
ASSERT(!isEmpty());
FloatSize& lastAdvance = m_advances.last();
lastAdvance.setWidth(lastAdvance.width() + width);
}
private:
Vector<const SimpleFontData*, 2048> m_fontData;
Vector<Glyph, 2048> m_glyphs;
Vector<FloatSize, 2048> m_advances;
};
}
#endif
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