1 /* 2 * Copyright (C) 2014 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_PICTURE_H_ 18 #define ANDROID_GRAPHICS_PICTURE_H_ 19 20 #include "SkPicture.h" 21 #include "SkPictureRecorder.h" 22 #include "SkRefCnt.h" 23 24 #include <memory> 25 26 class SkStream; 27 class SkWStream; 28 29 namespace android { 30 31 class Canvas; 32 33 // Skia's SkPicture class has been split into an SkPictureRecorder 34 // and an SkPicture. AndroidPicture recreates the functionality 35 // of the old SkPicture interface by flip-flopping between the two 36 // new classes. 37 class Picture { 38 public: 39 explicit Picture(const Picture* src = NULL); 40 41 Canvas* beginRecording(int width, int height); 42 43 void endRecording(); 44 45 int width() const; 46 47 int height() const; 48 49 static Picture* CreateFromStream(SkStream* stream); 50 51 void serialize(SkWStream* stream) const; 52 53 void draw(Canvas* canvas); 54 55 private: 56 int mWidth; 57 int mHeight; 58 SkAutoTUnref<const SkPicture> mPicture; 59 std::unique_ptr<SkPictureRecorder> mRecorder; 60 61 // Make a copy of a picture that is in the midst of being recorded. The 62 // resulting picture will have balanced saves and restores. 63 SkPicture* makePartialCopy() const; 64 65 void validate() const; 66 }; 67 68 }; // namespace android 69 #endif // ANDROID_GRAPHICS_PICTURE_H_ 70
