1 /* 2 * Copyright 2018 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 #ifndef BisectSlide_DEFINED 9 #define BisectSlide_DEFINED 10 11 #include "include/core/SkMatrix.h" 12 #include "include/core/SkPaint.h" 13 #include "include/core/SkPath.h" 14 #include "include/core/SkRect.h" 15 #include "include/core/SkRefCnt.h" 16 #include "include/core/SkSize.h" 17 #include "include/core/SkString.h" 18 #include "include/core/SkTypes.h" 19 #include "include/private/base/SkTArray.h" 20 #include "tools/viewer/Slide.h" 21 22 #include <stack> 23 #include <utility> 24 25 class SkCanvas; 26 27 /** 28 * This is a simple utility designed to extract the paths from an SKP file and then isolate a single 29 * one of them via bisect. Use the 'x' and 'X' keys to guide a binary search: 30 * 31 * 'x': Throw out half the paths. 32 * 'X': Toggle which half gets tossed and which half is kept. 33 * 'Z': Back up one level. 34 * 'D': Dump the path. 35 */ 36 class BisectSlide : public Slide { 37 public: 38 static sk_sp<BisectSlide> Create(const char filepath[]); 39 40 // Slide overrides. getDimensions()41 SkISize getDimensions() const override { return fDrawBounds.size(); } 42 bool onChar(SkUnichar c) override; 43 void draw(SkCanvas* canvas) override; 44 45 private: 46 BisectSlide(const char filepath[]); 47 48 struct FoundPath { 49 SkPath fPath; 50 SkPaint fPaint; 51 SkMatrix fViewMatrix; 52 }; 53 54 SkString fFilePath; 55 SkIRect fDrawBounds = SkIRect::MakeEmpty(); 56 skia_private::TArray<FoundPath> fFoundPaths; 57 skia_private::TArray<FoundPath> fTossedPaths; 58 skia_private::TArray<char> fTrail; 59 std::stack<std::pair<skia_private::TArray<FoundPath>, skia_private::TArray<FoundPath>>> 60 fPathHistory; 61 }; 62 63 #endif 64