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1 /* libs/graphics/ports/SkFontHost_fontconfig_direct.h | |
2 ** | |
3 ** Copyright 2009, Google Inc. | |
4 ** | |
5 ** Licensed under the Apache License, Version 2.0 (the "License"); | |
6 ** you may not use this file except in compliance with the License. | |
7 ** You may obtain a copy of the License at | |
8 ** | |
9 ** http://www.apache.org/licenses/LICENSE-2.0 | |
10 ** | |
11 ** Unless required by applicable law or agreed to in writing, software | |
12 ** distributed under the License is distributed on an "AS IS" BASIS, | |
13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
14 ** See the License for the specific language governing permissions and | |
15 ** limitations under the License. | |
16 */ | |
17 | |
18 #ifndef FontConfigDirect_DEFINED | |
19 #define FontConfigDirect_DEFINED | |
20 | |
21 #include <map> | |
22 #include <string> | |
23 | |
24 #include "SkThread.h" | |
25 #include "SkFontHost_fontconfig_impl.h" | |
26 | |
27 class SK_API FontConfigDirect : public FontConfigInterface { | |
28 public: | |
29 FontConfigDirect(); | |
30 virtual ~FontConfigDirect(); | |
31 | |
32 // FontConfigInterface implementation. Thread safe. | |
33 virtual bool Match(std::string* result_family, unsigned* result_filefaceid, | |
34 bool filefaceid_valid, unsigned filefaceid, | |
35 const std::string& family, | |
36 const void* characters, size_t characters_bytes, | |
37 bool* is_bold, bool* is_italic) SK_OVERRIDE; | |
38 virtual int Open(unsigned filefaceid) SK_OVERRIDE; | |
39 | |
40 private: | |
41 SkMutex mutex_; | |
42 // fileid stored in two maps below are unique per font file. | |
43 std::map<unsigned, std::string> fileid_to_filename_; | |
44 std::map<std::string, unsigned> filename_to_fileid_; | |
45 | |
46 // Cache of |family,style| to |FontMatch| to minimize querying FontConfig. | |
47 typedef std::pair<std::string, int> FontMatchKey; | |
48 struct FontMatch { | |
49 std::string family; | |
50 bool is_bold; | |
51 bool is_italic; | |
52 unsigned filefaceid; | |
53 }; | |
54 std::map<FontMatchKey, FontMatch> font_match_cache_; | |
55 | |
56 unsigned next_file_id_; | |
57 }; | |
58 | |
59 #endif // FontConfigDirect_DEFINED | |
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