summaryrefslogtreecommitdiffstats
path: root/src/3rdparty/webkit/WebCore/platform/graphics/FontCache.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/3rdparty/webkit/WebCore/platform/graphics/FontCache.h')
-rw-r--r--src/3rdparty/webkit/WebCore/platform/graphics/FontCache.h95
1 files changed, 95 insertions, 0 deletions
diff --git a/src/3rdparty/webkit/WebCore/platform/graphics/FontCache.h b/src/3rdparty/webkit/WebCore/platform/graphics/FontCache.h
new file mode 100644
index 0000000..816fe64
--- /dev/null
+++ b/src/3rdparty/webkit/WebCore/platform/graphics/FontCache.h
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2006, 2008 Apple Computer, Inc. All rights reserved.
+ *
+ * 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/Vector.h>
+#include <wtf/unicode/Unicode.h>
+
+#if PLATFORM(WIN)
+#include <objidl.h>
+#include <mlang.h>
+#endif
+
+namespace WebCore
+{
+
+class AtomicString;
+class Font;
+class FontPlatformData;
+class FontData;
+class FontDescription;
+class FontSelector;
+class SimpleFontData;
+
+class FontCache {
+public:
+ static const FontData* getFontData(const Font&, int& familyIndex, FontSelector*);
+ static 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.
+ static const SimpleFontData* getFontDataForCharacters(const Font&, const UChar* characters, int length);
+
+ // Also implemented by the platform.
+ static void platformInit();
+
+#if PLATFORM(WIN)
+ static IMLangFontLink2* getFontLinkInterface();
+#endif
+
+ static void getTraitsInFamily(const AtomicString&, Vector<unsigned>&);
+
+ static FontPlatformData* getCachedFontPlatformData(const FontDescription&, const AtomicString& family, bool checkingAlternateName = false);
+ static SimpleFontData* getCachedFontData(const FontPlatformData*);
+ static FontPlatformData* getLastResortFallbackFont(const FontDescription&);
+
+ static void addClient(FontSelector*);
+ static void removeClient(FontSelector*);
+
+ static unsigned generation();
+ static void invalidate();
+
+ static size_t fontDataCount();
+ static size_t inactiveFontDataCount();
+ static void purgeInactiveFontData(int count = INT_MAX);
+
+private:
+ // These methods are implemented by each platform.
+ static FontPlatformData* getSimilarFontPlatformData(const Font&);
+ static FontPlatformData* createFontPlatformData(const FontDescription&, const AtomicString& family);
+
+ friend class SimpleFontData;
+ friend class FontFallbackList;
+};
+
+}
+
+#endif