1 /* 2 * Copyright 2011 Google Inc. All Rights Reserved. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef SFNTLY_CPP_SRC_SFNTLY_TABLE_BITMAP_GLYPH_INFO_H_ 18 #define SFNTLY_CPP_SRC_SFNTLY_TABLE_BITMAP_GLYPH_INFO_H_ 19 20 #include <vector> 21 #include <map> 22 23 #include "sfntly/table/subtable.h" 24 25 namespace sfntly { 26 27 // An immutable class holding bitmap glyph information. 28 class BitmapGlyphInfo : public RefCounted<BitmapGlyphInfo> { 29 public: 30 // Constructor for a relative located glyph. The glyph's position in the EBDT 31 // table is a combination of it's block offset and it's own start offset. 32 // @param glyphId the glyph id 33 // @param blockOffset the offset of the block to which the glyph belongs 34 // @param startOffset the offset of the glyph within the block 35 // @param length the byte length 36 // @param format the glyph image format 37 BitmapGlyphInfo(int32_t glyph_id, 38 int32_t block_offset, 39 int32_t start_offset, 40 int32_t length, 41 int32_t format); 42 43 // Constructor for an absolute located glyph. The glyph's position in the EBDT 44 // table is only given by it's own start offset. 45 // @param glyphId the glyph id 46 // @param startOffset the offset of the glyph within the block 47 // @param length the byte length 48 // @param format the glyph image format 49 BitmapGlyphInfo(int32_t glyph_id, 50 int32_t start_offset, 51 int32_t length, 52 int32_t format); 53 54 int32_t glyph_id() const { return glyph_id_; } 55 bool relative() const { return relative_; } 56 int32_t block_offset() const { return block_offset_; } 57 int32_t offset() const { return block_offset() + start_offset(); } 58 int32_t start_offset() const { return start_offset_; } 59 int32_t length() const { return length_; } 60 int32_t format() const { return format_; } 61 62 // UNIMPLEMENTED: hashCode() 63 bool operator==(const BitmapGlyphInfo& rhs) const; 64 bool operator==(BitmapGlyphInfo* rhs); 65 66 private: 67 int32_t glyph_id_; 68 bool relative_; 69 int32_t block_offset_; 70 int32_t start_offset_; 71 int32_t length_; 72 int32_t format_; 73 }; 74 typedef Ptr<BitmapGlyphInfo> BitmapGlyphInfoPtr; 75 typedef std::map<int32_t, BitmapGlyphInfoPtr> BitmapGlyphInfoMap; 76 typedef std::vector<BitmapGlyphInfoMap> BitmapLocaList; 77 78 class StartOffsetComparator { 79 public: 80 bool operator()(BitmapGlyphInfo* lhs, BitmapGlyphInfo* rhs); 81 }; 82 83 } // namespace sfntly 84 85 #endif // SFNTLY_CPP_SRC_SFNTLY_TABLE_BITMAP_GLYPH_INFO_H_ 86
