Merge WebKit at r75315: Initial merge by git.

Change-Id: I570314b346ce101c935ed22a626b48c2af266b84

1 files changed, 89 insertions, 0 deletions

diff --git a/Source/WebCore/platform/graphics/FontFallbackList.h b/Source/WebCore/platform/graphics/FontFallbackList.h
new file mode 100644
index 0000000..a10f5af
--- /dev/null
+++ b/Source/WebCore/platform/graphics/FontFallbackList.h
@@ -0,0 +1,89 @@
+/*
+ * Copyright (C) 2006, 2010 Apple Inc. All rights reserved.
+ *
+ * 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.
+ *
+ */
+
+#ifndef FontFallbackList_h
+#define FontFallbackList_h
+
+#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;
+};
+
+}
+
+#endif