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-rw-r--r--WebCore/platform/graphics/FontCache.h117
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diff --git a/WebCore/platform/graphics/FontCache.h b/WebCore/platform/graphics/FontCache.h
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-/*
- * Copyright (C) 2006, 2008 Apple Computer, 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 FontCache_h
-#define FontCache_h
-
-#include <limits.h>
-#include <wtf/Forward.h>
-#include <wtf/Vector.h>
-#include <wtf/unicode/Unicode.h>
-
-#if PLATFORM(WIN)
-#include <objidl.h>
-#include <mlang.h>
-#endif
-
-namespace WebCore
-{
-
-class Font;
-class FontPlatformData;
-class FontData;
-class FontDescription;
-class FontSelector;
-class SimpleFontData;
-
-class FontCache : public Noncopyable {
-public:
- friend FontCache* fontCache();
-
- const FontData* getFontData(const Font&, int& familyIndex, FontSelector*);
- void releaseFontData(const SimpleFontData*);
-
- // This method is implemented by the platform.
- // FIXME: Font data returned by this method never go inactive because callers don't track and release them.
- const SimpleFontData* getFontDataForCharacters(const Font&, const UChar* characters, int length);
-
- // Also implemented by the platform.
- void platformInit();
-
-#if OS(WINCE) && !PLATFORM(QT)
-#if defined(IMLANG_FONT_LINK) && (IMLANG_FONT_LINK == 2)
- IMLangFontLink2* getFontLinkInterface();
-#else
- IMLangFontLink* getFontLinkInterface();
-#endif
- static void comInitialize();
- static void comUninitialize();
- static IMultiLanguage* getMultiLanguageInterface();
-#elif PLATFORM(WIN)
- IMLangFontLink2* getFontLinkInterface();
-#endif
-
- void getTraitsInFamily(const AtomicString&, Vector<unsigned>&);
-
- SimpleFontData* getCachedFontData(const FontDescription& fontDescription, const AtomicString& family, bool checkingAlternateName = false);
- SimpleFontData* getLastResortFallbackFont(const FontDescription&);
-
- void addClient(FontSelector*);
- void removeClient(FontSelector*);
-
- unsigned generation();
- void invalidate();
-
- size_t fontDataCount();
- size_t inactiveFontDataCount();
- void purgeInactiveFontData(int count = INT_MAX);
-
-private:
- FontCache();
- ~FontCache();
-
- // FIXME: This method should eventually be removed.
- FontPlatformData* getCachedFontPlatformData(const FontDescription&, const AtomicString& family, bool checkingAlternateName = false);
-
- // These methods are implemented by each platform.
- SimpleFontData* getSimilarFontPlatformData(const Font&);
- FontPlatformData* createFontPlatformData(const FontDescription&, const AtomicString& family);
-
- SimpleFontData* getCachedFontData(const FontPlatformData*);
-
- friend class SimpleFontData; // For getCachedFontData(const FontPlatformData*)
- friend class FontFallbackList;
-};
-
-// Get the global fontCache.
-FontCache* fontCache();
-
-}
-
-#endif