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1 /* | 1 /* |
2 * Copyright (C) 2006, 2008 Apple Computer, Inc. All rights reserved. | 2 * Copyright (C) 2006, 2008 Apple Computer, Inc. All rights reserved. |
3 * Copyright (C) 2007-2008 Torch Mobile, Inc. | 3 * Copyright (C) 2007-2008 Torch Mobile, Inc. |
4 * | 4 * |
5 * Redistribution and use in source and binary forms, with or without | 5 * Redistribution and use in source and binary forms, with or without |
6 * modification, are permitted provided that the following conditions | 6 * modification, are permitted provided that the following conditions |
7 * are met: | 7 * are met: |
8 * | 8 * |
9 * 1. Redistributions of source code must retain the above copyright | 9 * 1. Redistributions of source code must retain the above copyright |
10 * notice, this list of conditions and the following disclaimer. | 10 * notice, this list of conditions and the following disclaimer. |
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24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | 24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
25 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 25 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
28 */ | 28 */ |
29 | 29 |
30 #ifndef FontCache_h | 30 #ifndef FontCache_h |
31 #define FontCache_h | 31 #define FontCache_h |
32 | 32 |
33 #include <limits.h> | 33 #include <limits.h> |
| 34 #include "platform/PlatformExport.h" |
34 #include "wtf/Forward.h" | 35 #include "wtf/Forward.h" |
35 #include "wtf/PassRefPtr.h" | 36 #include "wtf/PassRefPtr.h" |
36 #include "wtf/RefPtr.h" | 37 #include "wtf/RefPtr.h" |
37 #include "wtf/Vector.h" | 38 #include "wtf/Vector.h" |
38 #include "wtf/text/CString.h" | 39 #include "wtf/text/CString.h" |
39 #include "wtf/text/WTFString.h" | 40 #include "wtf/text/WTFString.h" |
40 #include "wtf/unicode/Unicode.h" | 41 #include "wtf/unicode/Unicode.h" |
41 | 42 |
42 #if OS(WIN) | 43 #if OS(WIN) |
43 #include <windows.h> | 44 #include <windows.h> |
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56 class FontPlatformData; | 57 class FontPlatformData; |
57 class FontData; | 58 class FontData; |
58 class FontDescription; | 59 class FontDescription; |
59 class FontSelector; | 60 class FontSelector; |
60 class OpenTypeVerticalData; | 61 class OpenTypeVerticalData; |
61 class SimpleFontData; | 62 class SimpleFontData; |
62 | 63 |
63 enum ShouldRetain { Retain, DoNotRetain }; | 64 enum ShouldRetain { Retain, DoNotRetain }; |
64 enum PurgeSeverity { PurgeIfNeeded, ForcePurge }; | 65 enum PurgeSeverity { PurgeIfNeeded, ForcePurge }; |
65 | 66 |
66 class FontCache { | 67 class PLATFORM_EXPORT FontCache { |
67 friend class FontCachePurgePreventer; | 68 friend class FontCachePurgePreventer; |
68 | 69 |
69 WTF_MAKE_NONCOPYABLE(FontCache); WTF_MAKE_FAST_ALLOCATED; | 70 WTF_MAKE_NONCOPYABLE(FontCache); WTF_MAKE_FAST_ALLOCATED; |
70 public: | 71 public: |
71 friend FontCache* fontCache(); | 72 static FontCache* fontCache(); |
72 | 73 |
73 void releaseFontData(const SimpleFontData*); | 74 void releaseFontData(const SimpleFontData*); |
74 | 75 |
75 // This method is implemented by the plaform and used by | 76 // This method is implemented by the plaform and used by |
76 // FontFastPath to lookup the font for a given character. | 77 // FontFastPath to lookup the font for a given character. |
77 PassRefPtr<SimpleFontData> platformFallbackForCharacter(const FontDescriptio
n&, UChar32, const SimpleFontData* fontDataToSubstitute, bool disallowSynthetics
); | 78 PassRefPtr<SimpleFontData> platformFallbackForCharacter(const FontDescriptio
n&, UChar32, const SimpleFontData* fontDataToSubstitute, bool disallowSynthetics
); |
78 | 79 |
79 // Also implemented by the platform. | 80 // Also implemented by the platform. |
80 void platformInit(); | 81 void platformInit(); |
81 | 82 |
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143 bool m_useSubpixelPositioning; | 144 bool m_useSubpixelPositioning; |
144 #endif | 145 #endif |
145 | 146 |
146 #if OS(MACOSX) || OS(ANDROID) | 147 #if OS(MACOSX) || OS(ANDROID) |
147 friend class ComplexTextController; | 148 friend class ComplexTextController; |
148 #endif | 149 #endif |
149 friend class SimpleFontData; // For fontDataFromFontPlatformData | 150 friend class SimpleFontData; // For fontDataFromFontPlatformData |
150 friend class FontFallbackList; | 151 friend class FontFallbackList; |
151 }; | 152 }; |
152 | 153 |
153 // Get the global fontCache. | 154 class PLATFORM_EXPORT FontCachePurgePreventer { |
154 FontCache* fontCache(); | |
155 | |
156 class FontCachePurgePreventer { | |
157 public: | 155 public: |
158 FontCachePurgePreventer() { fontCache()->disablePurging(); } | 156 FontCachePurgePreventer() { FontCache::fontCache()->disablePurging(); } |
159 ~FontCachePurgePreventer() { fontCache()->enablePurging(); } | 157 ~FontCachePurgePreventer() { FontCache::fontCache()->enablePurging(); } |
160 }; | 158 }; |
161 | 159 |
162 } | 160 } |
163 | 161 |
164 #endif | 162 #endif |
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