| /* |
| * Copyright (C) 2013 The Android Open Source Project |
| * |
| * 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 MINIKIN_FONT_COLLECTION_H |
| #define MINIKIN_FONT_COLLECTION_H |
| |
| #include <vector> |
| |
| #include <minikin/MinikinRefCounted.h> |
| #include <minikin/MinikinFont.h> |
| #include <minikin/FontFamily.h> |
| |
| namespace android { |
| |
| class FontCollection : public MinikinRefCounted { |
| public: |
| explicit FontCollection(const std::vector<FontFamily*>& typefaces); |
| |
| ~FontCollection(); |
| |
| struct Run { |
| FakedFont fakedFont; |
| int start; |
| int end; |
| }; |
| |
| void itemize(const uint16_t *string, size_t string_length, FontStyle style, |
| std::vector<Run>* result) const; |
| |
| // Get the base font for the given style, useful for font-wide metrics. |
| MinikinFont* baseFont(FontStyle style); |
| |
| // Get base font with fakery information (fake bold could affect metrics) |
| FakedFont baseFontFaked(FontStyle style); |
| |
| uint32_t getId() const; |
| private: |
| static const int kLogCharsPerPage = 8; |
| static const int kPageMask = (1 << kLogCharsPerPage) - 1; |
| |
| struct Range { |
| size_t start; |
| size_t end; |
| }; |
| |
| FontFamily* getFamilyForChar(uint32_t ch, FontLanguage lang, int variant) const; |
| |
| // static for allocating unique id's |
| static uint32_t sNextId; |
| |
| // unique id for this font collection (suitable for cache key) |
| uint32_t mId; |
| |
| // Highest UTF-32 code point that can be mapped |
| uint32_t mMaxChar; |
| |
| // This vector has ownership of the bitsets and typeface objects. |
| std::vector<FontFamily*> mFamilies; |
| |
| // This vector contains pointers into mInstances |
| std::vector<FontFamily*> mFamilyVec; |
| |
| // These are offsets into mInstanceVec, one range per page |
| std::vector<Range> mRanges; |
| }; |
| |
| } // namespace android |
| |
| #endif // MINIKIN_FONT_COLLECTION_H |