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/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkBitmap.h"
#include "SkTDArray.h"
class SkDrawCommand;
// This class encapsulates the both the in-memory representation of the draw ops
// and the state of Skia/Ganesh's rendering. It should never have any Qt intrusions.
class Model {
public:
enum class ErrorCode {
kOK,
kCouldntOpenFile,
kCouldntDecodeSKP
};
Model();
~Model();
static const char* ErrorString(ErrorCode);
// Replace the list of draw ops by reading the provided skp filename and
// reset the Skia draw state. It is up to the view portion to update itself
// after this call (i.e., rebuild the opList view).
ErrorCode load(const char* filename);
// Update the rendering state to the provided op
void setCurOp(int curOp);
int curOp() const { return fCurOp; }
int numOps() const { return fOps.count(); }
const char* getOpName(int index) const;
bool isHierarchyPush(int index) const;
bool isHierarchyPop(int index) const;
// Get the bits visually representing the current rendering state
void* getPixels() const { return fBM.getPixels(); }
int width() const { return fBM.width(); }
int height() const { return fBM.height(); }
protected:
// draw the ops up to (and including) the index-th op
void drawTo(int index);
void resetOpList();
private:
SkTDArray<SkDrawCommand*> fOps;
int fCurOp; // The current op the rendering state is at
SkBitmap fBM;
};
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