1 /* 2 * Copyright (C) 2013 The Android Open Source Project 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 _ANDROID_GRAPHICS_MINIKIN_SKIA_H_ 18 #define _ANDROID_GRAPHICS_MINIKIN_SKIA_H_ 19 20 #include <cutils/compiler.h> 21 #include <minikin/MinikinFont.h> 22 #include <SkRefCnt.h> 23 24 class SkPaint; 25 class SkTypeface; 26 27 namespace android { 28 29 class ANDROID_API MinikinFontSkia : public minikin::MinikinFont { 30 public: 31 explicit MinikinFontSkia(sk_sp<SkTypeface> typeface, const void* fontData, size_t fontSize, 32 int ttcIndex, const std::vector<minikin::FontVariation>& axes); 33 34 float GetHorizontalAdvance(uint32_t glyph_id, 35 const minikin::MinikinPaint &paint) const; 36 37 void GetBounds(minikin::MinikinRect* bounds, uint32_t glyph_id, 38 const minikin::MinikinPaint &paint) const; 39 40 SkTypeface* GetSkTypeface() const; 41 sk_sp<SkTypeface> RefSkTypeface() const; 42 43 // Access to underlying raw font bytes 44 const void* GetFontData() const; 45 size_t GetFontSize() const; 46 int GetFontIndex() const; 47 const std::vector<minikin::FontVariation>& GetAxes() const; 48 std::shared_ptr<minikin::MinikinFont> createFontWithVariation( 49 const std::vector<minikin::FontVariation>&) const; 50 51 static uint32_t packPaintFlags(const SkPaint* paint); 52 static void unpackPaintFlags(SkPaint* paint, uint32_t paintFlags); 53 54 // set typeface and fake bold/italic parameters 55 static void populateSkPaint(SkPaint* paint, const minikin::MinikinFont* font, 56 minikin::FontFakery fakery); 57 private: 58 sk_sp<SkTypeface> mTypeface; 59 60 // A raw pointer to the font data - it should be owned by some other object with 61 // lifetime at least as long as this object. 62 const void* mFontData; 63 size_t mFontSize; 64 int mTtcIndex; 65 std::vector<minikin::FontVariation> mAxes; 66 }; 67 68 } // namespace android 69 70 #endif // _ANDROID_GRAPHICS_MINIKIN_SKIA_H_ 71