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 23 class SkPaint; 24 class SkTypeface; 25 26 namespace android { 27 28 class ANDROID_API MinikinFontSkia : public MinikinFont { 29 public: 30 // Note: this takes ownership of the reference (will unref on dtor) 31 explicit MinikinFontSkia(SkTypeface *typeface, const void* fontData, size_t fontSize, 32 int ttcIndex); 33 34 ~MinikinFontSkia(); 35 36 float GetHorizontalAdvance(uint32_t glyph_id, 37 const MinikinPaint &paint) const; 38 39 void GetBounds(MinikinRect* bounds, uint32_t glyph_id, 40 const MinikinPaint &paint) const; 41 42 const void* GetTable(uint32_t tag, size_t* size, MinikinDestroyFunc* destroy); 43 44 SkTypeface* GetSkTypeface() const; 45 46 // Access to underlying raw font bytes 47 const void* GetFontData() const; 48 size_t GetFontSize() const; 49 int GetFontIndex() 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 MinikinFont* font, FontFakery fakery); 56 private: 57 SkTypeface* mTypeface; 58 59 // A raw pointer to the font data - it should be owned by some other object with 60 // lifetime at least as long as this object. 61 const void* mFontData; 62 size_t mFontSize; 63 int mTtcIndex; 64 }; 65 66 } // namespace android 67 68 #endif // _ANDROID_GRAPHICS_MINIKIN_SKIA_H_ 69