1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef CONTENT_RENDERER_PEPPER_PEPPER_TRUETYPE_FONT_H_ 6 #define CONTENT_RENDERER_PEPPER_PEPPER_TRUETYPE_FONT_H_ 7 8 #include <string> 9 #include <vector> 10 11 #include "ppapi/proxy/serialized_structs.h" 12 13 namespace content { 14 15 class PepperTrueTypeFont { 16 public: 17 // Creates a font matching the given descriptor. The exact font that is 18 // returned will depend on the host platform's font matching and fallback 19 // algorithm. 20 static PepperTrueTypeFont* Create( 21 const ppapi::proxy::SerializedTrueTypeFontDesc& desc); 22 virtual ~PepperTrueTypeFont() {} 23 24 // Returns true if the font was successfully created, false otherwise. 25 virtual bool IsValid() = 0; 26 27 // Returns a description of the actual font. Use this to see the actual 28 // characteristics of the font after running the host platform's font matching 29 // and fallback algorithm. Returns PP_OK on success, a Pepper error code on 30 // failure. 'desc' is written only on success. 31 virtual int32_t Describe(ppapi::proxy::SerializedTrueTypeFontDesc* desc) = 0; 32 33 // Retrieves an array of TrueType table tags contained in this font. Returns 34 // the number of tags on success, a Pepper error code on failure. 'tags' are 35 // written only on success. 36 virtual int32_t GetTableTags(std::vector<uint32_t>* tags) = 0; 37 38 // Gets a TrueType font table corresponding to the given tag. The 'offset' and 39 // 'max_data_length' parameters determine what part of the table is returned. 40 // Returns the data size in bytes on success, a Pepper error code on failure. 41 // 'data' is written only on success. 42 virtual int32_t GetTable(uint32_t table_tag, 43 int32_t offset, 44 int32_t max_data_length, 45 std::string* data) = 0; 46 }; 47 48 } // namespace content 49 50 #endif // CONTENT_RENDERER_PEPPER_PEPPER_TRUETYPE_FONT_H_ 51
