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/*
* Copyright 2018 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef BisectSlide_DEFINED
#define BisectSlide_DEFINED
#include "include/core/SkMatrix.h"
#include "include/core/SkPaint.h"
#include "include/core/SkPath.h"
#include "include/core/SkRect.h"
#include "include/core/SkRefCnt.h"
#include "include/core/SkSize.h"
#include "include/core/SkString.h"
#include "include/core/SkTypes.h"
#include "include/private/base/SkTArray.h"
#include "tools/viewer/Slide.h"
#include <stack>
#include <utility>
class SkCanvas;
/**
* This is a simple utility designed to extract the paths from an SKP file and then isolate a single
* one of them via bisect. Use the 'x' and 'X' keys to guide a binary search:
*
* 'x': Throw out half the paths.
* 'X': Toggle which half gets tossed and which half is kept.
* 'Z': Back up one level.
* 'D': Dump the path.
*/
class BisectSlide : public Slide {
public:
static sk_sp<BisectSlide> Create(const char filepath[]);
// Slide overrides.
SkISize getDimensions() const override { return fDrawBounds.size(); }
bool onChar(SkUnichar c) override;
void draw(SkCanvas* canvas) override;
private:
BisectSlide(const char filepath[]);
struct FoundPath {
SkPath fPath;
SkPaint fPaint;
SkMatrix fViewMatrix;
};
SkString fFilePath;
SkIRect fDrawBounds = SkIRect::MakeEmpty();
skia_private::TArray<FoundPath> fFoundPaths;
skia_private::TArray<FoundPath> fTossedPaths;
skia_private::TArray<char> fTrail;
std::stack<std::pair<skia_private::TArray<FoundPath>, skia_private::TArray<FoundPath>>>
fPathHistory;
};
#endif