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| 1 /* libs/graphics/ports/SkFontHost_fontconfig_impl.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 /* The SkFontHost_fontconfig code requires an implementation of an abstact |
| 19 * fontconfig interface. We do this because sometimes fontconfig is not |
| 20 * directly availible and this provides an ability to change the fontconfig |
| 21 * implementation at run-time. |
| 22 */ |
| 23 |
| 24 #ifndef FontConfigInterface_DEFINED |
| 25 #define FontConfigInterface_DEFINED |
| 26 |
| 27 #include <string> |
| 28 |
| 29 class FontConfigInterface { |
| 30 public: |
| 31 virtual ~FontConfigInterface() { } |
| 32 |
| 33 /** Performs config match |
| 34 * |
| 35 * @param result_family (output) on success, the resulting family name. |
| 36 * @param result_fileid (output) on success, the resulting file id. |
| 37 * @param fileid_valid if true, then |fileid| is valid |
| 38 * @param fileid the fileid (as returned by this function) which we are |
| 39 * trying to match. |
| 40 * @param family (optional) the family of the font that we are trying to |
| 41 * match. |
| 42 * @param is_bold (optional, set to -1 to ignore) |
| 43 * @param is_italic (optional, set to -1 to ignore) |
| 44 * @return true iff successful. |
| 45 */ |
| 46 virtual bool Match( |
| 47 std::string* result_family, |
| 48 unsigned* result_fileid, |
| 49 bool fileid_valid, |
| 50 unsigned fileid, |
| 51 const std::string& family, |
| 52 int is_bold, |
| 53 int is_italic) = 0; |
| 54 |
| 55 /** Open a font file given the fileid as returned by Match |
| 56 */ |
| 57 virtual int Open(unsigned fileid) = 0; |
| 58 }; |
| 59 |
| 60 #endif // FontConfigInterface_DEFINED |
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