| /* |
| * Copyright 2011 Google Inc. All Rights Reserved. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef TYPOGRAPHY_FONT_SFNTLY_SRC_SAMPLE_SUBTLY_FONT_INFO_H_ |
| #define TYPOGRAPHY_FONT_SFNTLY_SRC_SAMPLE_SUBTLY_FONT_INFO_H_ |
| |
| #include <map> |
| #include <set> |
| |
| #include "sfntly/font.h" |
| #include "sfntly/port/type.h" |
| #include "sfntly/port/refcount.h" |
| #include "sfntly/table/core/cmap_table.h" |
| #include "sfntly/table/truetype/glyph_table.h" |
| #include "sfntly/table/truetype/loca_table.h" |
| |
| namespace subtly { |
| class CharacterPredicate; |
| |
| typedef int32_t FontId; |
| typedef std::map<FontId, sfntly::Ptr<sfntly::Font> > FontIdMap; |
| |
| // Glyph id pair that contains the loca table glyph id as well as the |
| // font id that has the glyph table this glyph belongs to. |
| class GlyphId { |
| public: |
| GlyphId(int32_t glyph_id, FontId font_id); |
| ~GlyphId() {} |
| |
| bool operator==(const GlyphId& other) const; |
| bool operator<(const GlyphId& other) const; |
| |
| int32_t glyph_id() const { return glyph_id_; } |
| void set_glyph_id(const int32_t glyph_id) { glyph_id_ = glyph_id; } |
| FontId font_id() const { return font_id_; } |
| void set_font_id(const FontId font_id) { font_id_ = font_id; } |
| |
| private: |
| int32_t glyph_id_; |
| FontId font_id_; |
| }; |
| |
| typedef std::map<int32_t, GlyphId> CharacterMap; |
| typedef std::set<GlyphId> GlyphIdSet; |
| |
| // Font information used for FontAssembler in the construction of a new font. |
| // Will make copies of character map, glyph id set and font id map. |
| class FontInfo : public sfntly::RefCounted<FontInfo> { |
| public: |
| // Empty FontInfo object. |
| FontInfo(); |
| // chars_to_glyph_ids maps characters to GlyphIds for CMap construction |
| // resolved_glyph_ids defines GlyphIds which should be in the final font |
| // fonts is a map of font ids to fonts to reference any needed table |
| FontInfo(CharacterMap* chars_to_glyph_ids, |
| GlyphIdSet* resolved_glyph_ids, |
| FontIdMap* fonts); |
| virtual ~FontInfo(); |
| |
| // Gets the table with the specified tag from the font corresponding to |
| // font_id or NULL if there is no such font/table. |
| // font_id is the id of the font that contains the table |
| // tag identifies the table to be obtained |
| virtual sfntly::FontDataTable* GetTable(FontId font_id, int32_t tag); |
| // Gets the table map of the font whose id is font_id |
| virtual const sfntly::TableMap* GetTableMap(FontId); |
| |
| CharacterMap* chars_to_glyph_ids() const { return chars_to_glyph_ids_; } |
| // Takes ownership of the chars_to_glyph_ids CharacterMap. |
| void set_chars_to_glyph_ids(CharacterMap* chars_to_glyph_ids); |
| GlyphIdSet* resolved_glyph_ids() const { return resolved_glyph_ids_; } |
| // Takes ownership of the glyph_ids GlyphIdSet. |
| void set_resolved_glyph_ids(GlyphIdSet* glyph_ids); |
| FontIdMap* fonts() const { return fonts_; } |
| // Takes ownership of the fonts FontIdMap. |
| void set_fonts(FontIdMap* fonts); |
| |
| private: |
| CharacterMap* chars_to_glyph_ids_; |
| GlyphIdSet* resolved_glyph_ids_; |
| FontIdMap* fonts_; |
| }; |
| |
| // FontSourcedInfoBuilder is used to create a FontInfo object from a Font |
| // optionally specifying a CharacterPredicate to filter out some of |
| // the font's characters. |
| // It does not take ownership or copy the values its constructor receives. |
| class FontSourcedInfoBuilder : |
| public sfntly::RefCounted<FontSourcedInfoBuilder> { |
| public: |
| FontSourcedInfoBuilder(sfntly::Font* font, FontId font_id); |
| FontSourcedInfoBuilder(sfntly::Font* font, |
| FontId font_id, |
| CharacterPredicate* predicate); |
| virtual ~FontSourcedInfoBuilder() { } |
| |
| virtual CALLER_ATTACH FontInfo* GetFontInfo(); |
| |
| protected: |
| bool GetCharacterMap(CharacterMap* chars_to_glyph_ids); |
| bool ResolveCompositeGlyphs(CharacterMap* chars_to_glyph_ids, |
| GlyphIdSet* resolved_glyph_ids); |
| void Initialize(); |
| |
| private: |
| sfntly::Ptr<sfntly::Font> font_; |
| FontId font_id_; |
| CharacterPredicate* predicate_; |
| |
| sfntly::Ptr<sfntly::CMapTable::CMap> cmap_; |
| sfntly::Ptr<sfntly::LocaTable> loca_table_; |
| sfntly::Ptr<sfntly::GlyphTable> glyph_table_; |
| }; |
| } |
| #endif // TYPOGRAPHY_FONT_SFNTLY_SRC_SAMPLE_SUBTLY_FONT_INFO_H_ |