Move Glyph related classes to platform/fonts

Source/core/platform/graphics/GlyphBuffer.h

-/*
- * 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/UnusedParam.h"
-#include "wtf/Vector.h"
-
-#if OS(MACOSX)
-#include <ApplicationServices/ApplicationServices.h>
-#endif
-
-namespace WebCore {
-
-class SimpleFontData;
-
-typedef Glyph GlyphBufferGlyph;
-
-// CG uses CGSize instead of FloatSize so that the result of advances()
-// can be passed directly to CGContextShowGlyphsWithAdvances in FontMac.mm
-#if OS(MACOSX)
-struct GlyphBufferAdvance : CGSize {
-public:
-    GlyphBufferAdvance(CGSize size) : CGSize(size)
-    {
-    }
-
-    void setWidth(CGFloat width) { this->CGSize::width = width; }
-    CGFloat width() const { return this->CGSize::width; }
-    CGFloat height() const { return this->CGSize::height; }
-};
-#else
-typedef FloatSize GlyphBufferAdvance;
-#endif
-
-class GlyphBuffer {
-public:
-    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) { return m_glyphs.data() + from; }
-    GlyphBufferAdvance* advances(int from) { return m_advances.data() + from; }
-    const GlyphBufferGlyph* glyphs(int from) const { return m_glyphs.data() + from; }
-    const GlyphBufferAdvance* advances(int from) const { return m_advances.data() + from; }
-
-    const SimpleFontData* fontDataAt(int index) const { return m_fontData[index]; }
-
-    Glyph glyphAt(int index) const
-    {
-        return m_glyphs[index];
-    }
-
-    float advanceAt(int index) const
-    {
-        return m_advances[index].width();
-    }
-
-    void add(Glyph glyph, const SimpleFontData* font, float width)
-    {
-        m_fontData.append(font);
-        m_glyphs.append(glyph);
-
-#if OS(MACOSX)
-        CGSize advance = { width, 0 };
-        m_advances.append(advance);
-#else
-        m_advances.append(FloatSize(width, 0));
-#endif
-    }
-
-    void add(Glyph glyph, const SimpleFontData* font, GlyphBufferAdvance advance)
-    {
-        m_fontData.append(font);
-        m_glyphs.append(glyph);
-        m_advances.append(advance);
-    }
-
-    void reverse(int from, int length)
-    {
-        for (int i = from, end = from + length - 1; i < end; ++i, --end)
-            swap(i, end);
-    }
-
-    void expandLastAdvance(float width)
-    {
-        ASSERT(!isEmpty());
-        GlyphBufferAdvance& lastAdvance = m_advances.last();
-        lastAdvance.setWidth(lastAdvance.width() + width);
-    }
-
-private:
-    void swap(int index1, int index2)
-    {
-        const SimpleFontData* 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;
-    }
-
-    Vector<const SimpleFontData*, 2048> m_fontData;
-    Vector<GlyphBufferGlyph, 2048> m_glyphs;
-    Vector<GlyphBufferAdvance, 2048> m_advances;
-};
-
-}
-#endif