/* | |
* This file is part of the internal font implementation. It should not be included by anyone other than | |
* FontMac.cpp, FontWin.cpp and Font.cpp. | |
* | |
* Copyright (C) 2006 Apple Computer, Inc. | |
* | |
* This library is free software; you can redistribute it and/or | |
* modify it under the terms of the GNU Library General Public | |
* License as published by the Free Software Foundation; either | |
* version 2 of the License, or (at your option) any later version. | |
* | |
* This library is distributed in the hope that it will be useful, | |
* but WITHOUT ANY WARRANTY; without even the implied warranty of | |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
* Library General Public License for more details. | |
* | |
* You should have received a copy of the GNU Library General Public License | |
* along with this library; see the file COPYING.LIB. If not, write to | |
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | |
* Boston, MA 02110-1301, USA. | |
* | |
*/ | |
// This file has no guards on purpose in order to detect redundant includes. This is a private header | |
// and so this may catch someone trying to include this file in public cpp files. | |
#include "FontSelector.h" | |
#include "SimpleFontData.h" | |
#include <wtf/Forward.h> | |
namespace WebCore { | |
class Font; | |
class GlyphPageTreeNode; | |
class GraphicsContext; | |
class IntRect; | |
class FontDescription; | |
class FontPlatformData; | |
class FontSelector; | |
const int cAllFamiliesScanned = -1; | |
class FontFallbackList : public RefCounted<FontFallbackList> { | |
public: | |
static PassRefPtr<FontFallbackList> create() { return adoptRef(new FontFallbackList()); } | |
~FontFallbackList() { releaseFontData(); } | |
void invalidate(PassRefPtr<FontSelector>); | |
bool isFixedPitch(const Font* f) const { if (m_pitch == UnknownPitch) determinePitch(f); return m_pitch == FixedPitch; }; | |
void determinePitch(const Font*) const; | |
bool loadingCustomFonts() const { return m_loadingCustomFonts; } | |
FontSelector* fontSelector() const { return m_fontSelector.get(); } | |
unsigned generation() const { return m_generation; } | |
private: | |
FontFallbackList(); | |
const SimpleFontData* primarySimpleFontData(const Font* f) | |
{ | |
ASSERT(isMainThread()); | |
if (!m_cachedPrimarySimpleFontData) | |
m_cachedPrimarySimpleFontData = primaryFontData(f)->fontDataForCharacter(' '); | |
return m_cachedPrimarySimpleFontData; | |
} | |
const FontData* primaryFontData(const Font* f) const { return fontDataAt(f, 0); } | |
const FontData* fontDataAt(const Font*, unsigned index) const; | |
const FontData* fontDataForCharacters(const Font*, const UChar*, int length) const; | |
void setPlatformFont(const FontPlatformData&); | |
void releaseFontData(); | |
mutable Vector<pair<const FontData*, bool>, 1> m_fontList; | |
mutable HashMap<int, GlyphPageTreeNode*> m_pages; | |
mutable GlyphPageTreeNode* m_pageZero; | |
mutable const SimpleFontData* m_cachedPrimarySimpleFontData; | |
RefPtr<FontSelector> m_fontSelector; | |
mutable int m_familyIndex; | |
mutable Pitch m_pitch; | |
mutable bool m_loadingCustomFonts; | |
unsigned m_generation; | |
friend class Font; | |
}; | |
} | |