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/*
* Copyright 2012 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SKDEBUGCANVAS_H_
#define SKDEBUGCANVAS_H_
#include "SkCanvas.h"
#include "SkCanvasVirtualEnforcer.h"
#include "SkDrawCommand.h"
#include "SkPath.h"
#include "SkPathOps.h"
#include "SkString.h"
#include "SkTArray.h"
#include "SkVertices.h"
#include "UrlDataManager.h"
class GrAuditTrail;
class SkNWayCanvas;
class SkPicture;
class SkDebugCanvas : public SkCanvasVirtualEnforcer<SkCanvas> {
public:
SkDebugCanvas(int width, int height);
~SkDebugCanvas() override;
/**
* Enable or disable overdraw visualization
*/
void setOverdrawViz(bool overdrawViz);
bool getOverdrawViz() const { return fOverdrawViz; }
/**
* Set the color of the clip visualization. An alpha of zero renders the clip invisible.
*/
void setClipVizColor(SkColor clipVizColor) { this->fClipVizColor = clipVizColor; }
void setDrawGpuOpBounds(bool drawGpuOpBounds) { fDrawGpuOpBounds = drawGpuOpBounds; }
bool getDrawGpuOpBounds() const { return fDrawGpuOpBounds; }
/**
Executes all draw calls to the canvas.
@param canvas The canvas being drawn to
*/
void draw(SkCanvas *canvas);
/**
Executes the draw calls up to the specified index.
@param canvas The canvas being drawn to
@param index The index of the final command being executed
@param m an optional Mth gpu op to highlight, or -1
*/
void drawTo(SkCanvas *canvas, int index, int m = -1);
/**
Returns the most recently calculated transformation matrix
*/
const SkMatrix &getCurrentMatrix() {
return fMatrix;
}
/**
Returns the most recently calculated clip
*/
const SkIRect &getCurrentClip() {
return fClip;
}
/**
Removes the command at the specified index
@param index The index of the command to delete
*/
void deleteDrawCommandAt(int index);
/**
Returns the draw command at the given index.
@param index The index of the command
*/
SkDrawCommand *getDrawCommandAt(int index);
/**
Returns length of draw command vector.
*/
int getSize() const {
return fCommandVector.count();
}
/**
Toggles the visibility / execution of the draw command at index i with
the value of toggle.
*/
void toggleCommand(int index, bool toggle);
/**
Returns a JSON object representing up to the Nth draw, where N is less than
SkDebugCanvas::getSize(). The encoder may use the UrlDataManager to store binary data such
as images, referring to them via URLs embedded in the JSON.
*/
Json::Value toJSON(UrlDataManager &urlDataManager, int n, SkCanvas *);
Json::Value toJSONOpList(int n, SkCanvas*);
void detachCommands(SkTDArray<SkDrawCommand*>* dst) {
fCommandVector.swap(*dst);
}
protected:
void willSave() override;
SaveLayerStrategy getSaveLayerStrategy(const SaveLayerRec &) override;
void willRestore() override;
void didConcat(const SkMatrix &) override;
void didSetMatrix(const SkMatrix &) override;
void onDrawAnnotation(const SkRect&, const char[], SkData*) override;
void onDrawDRRect(const SkRRect&, const SkRRect&, const SkPaint&) override;
void onDrawText(const void* text, size_t byteLength, SkScalar x, SkScalar y,
const SkPaint&) override;
void onDrawPosText(const void* text, size_t byteLength, const SkPoint pos[],
const SkPaint&) override;
void onDrawPosTextH(const void* text, size_t byteLength, const SkScalar xpos[],
SkScalar constY, const SkPaint&) override;
void onDrawTextOnPath(const void* text, size_t byteLength, const SkPath& path,
const SkMatrix* matrix, const SkPaint&) override;
void onDrawTextRSXform(const void* text, size_t byteLength, const SkRSXform[], const SkRect*,
const SkPaint&) override;
void onDrawTextBlob(const SkTextBlob* blob, SkScalar x, SkScalar y,
const SkPaint& paint) override;
void onDrawPatch(const SkPoint cubics[12], const SkColor colors[4],
const SkPoint texCoords[4], SkBlendMode, const SkPaint& paint) override;
void onDrawPaint(const SkPaint&) override;
void onDrawRect(const SkRect&, const SkPaint&) override;
void onDrawOval(const SkRect&, const SkPaint&) override;
void onDrawArc(const SkRect&, SkScalar, SkScalar, bool, const SkPaint&) override;
void onDrawRRect(const SkRRect&, const SkPaint&) override;
void onDrawPoints(PointMode, size_t count, const SkPoint pts[], const SkPaint&) override;
void onDrawVerticesObject(const SkVertices*, const SkMatrix* bones, int boneCount, SkBlendMode,
const SkPaint&) override;
void onDrawPath(const SkPath&, const SkPaint&) override;
void onDrawRegion(const SkRegion&, const SkPaint&) override;
void onDrawBitmap(const SkBitmap&, SkScalar left, SkScalar top, const SkPaint*) override;
void onDrawBitmapLattice(const SkBitmap&, const Lattice&, const SkRect&,
const SkPaint*) override;
void onDrawBitmapRect(const SkBitmap&, const SkRect* src, const SkRect& dst, const SkPaint*,
SrcRectConstraint) override;
void onDrawImage(const SkImage*, SkScalar left, SkScalar top, const SkPaint*) override;
void onDrawImageLattice(const SkImage* image, const Lattice& lattice,
const SkRect& dst, const SkPaint* paint) override;
void onDrawImageRect(const SkImage*, const SkRect* src, const SkRect& dst,
const SkPaint*, SrcRectConstraint) override;
void onDrawBitmapNine(const SkBitmap&, const SkIRect& center, const SkRect& dst,
const SkPaint*) override;
void onDrawImageNine(const SkImage*, const SkIRect& center, const SkRect& dst,
const SkPaint*) override;
void onDrawAtlas(const SkImage*, const SkRSXform[], const SkRect[], const SkColor[],
int, SkBlendMode, const SkRect*, const SkPaint*) override;
void onClipRect(const SkRect&, SkClipOp, ClipEdgeStyle) override;
void onClipRRect(const SkRRect&, SkClipOp, ClipEdgeStyle) override;
void onClipPath(const SkPath&, SkClipOp, ClipEdgeStyle) override;
void onClipRegion(const SkRegion& region, SkClipOp) override;
void onDrawShadowRec(const SkPath&, const SkDrawShadowRec&) override;
void onDrawDrawable(SkDrawable*, const SkMatrix*) override;
void onDrawPicture(const SkPicture*, const SkMatrix*, const SkPaint*) override;
private:
SkTDArray<SkDrawCommand*> fCommandVector;
SkMatrix fMatrix;
SkIRect fClip;
bool fOverdrawViz;
SkColor fClipVizColor;
bool fDrawGpuOpBounds;
/**
Adds the command to the class' vector of commands.
@param command The draw command for execution
*/
void addDrawCommand(SkDrawCommand* command);
GrAuditTrail* getAuditTrail(SkCanvas*);
void drawAndCollectOps(int n, SkCanvas*);
void cleanupAuditTrail(SkCanvas*);
typedef SkCanvasVirtualEnforcer<SkCanvas> INHERITED;
};
#endif
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