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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 "SkDrawCommand.h"
#include "SkPicture.h"
#include "SkHitBox.h"
#include <vector>
class SkDebugCanvas : public SkCanvas {
public:
SkDebugCanvas();
~SkDebugCanvas();
void toggleFilter(bool toggle);
/**
Executes all draw calls to the canvas.
@param canvas The canvas being drawn to
*/
void draw(SkCanvas* canvas);
/**
Executes the draw calls in the specified range.
@param canvas The canvas being drawn to
@param i The beginning of the range
@param j The end of the range
TODO(chudy): Implement
*/
void drawRange(SkCanvas* canvas, int i, int j);
/**
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
*/
void drawTo(SkCanvas* canvas, int index, SkBitmap* bitmap);
/**
Returns the draw command at the given index.
@param index The index of the command
*/
SkDrawCommand* getDrawCommandAt(int index);
/**
Returns information about the command at the given index.
@param index The index of the command
*/
std::vector<std::string>* getCommandInfoAt(int index);
/**
Returns the visibility of the command at the given index.
@param index The index of the command
*/
bool getDrawCommandVisibilityAt(int index);
/**
Returns the vector of draw commands
*/
std::vector<SkDrawCommand*> getDrawCommands();
/**
* Returns the string vector of draw commands
*/
std::vector<std::string>* getDrawCommandsAsStrings();
/**
Returns the mapping of all pixels to a layer value.
*/
int* getHitBox() {
return fHitBox.getHitBox();
}
SkHitBox* getBoxClass() {
return &fHitBox;
}
int getHitBoxPoint() {
return fHitBox.getPoint();
}
/**
Returns length of draw command vector.
*/
int getSize() {
return commandVector.size();
}
void isCalculatingHits(bool isEnabled) {
fCalculateHits = isEnabled;
}
/**
Toggles the visibility / execution of the draw command at index i with
the value of toggle.
*/
void toggleCommand(int index, bool toggle);
void setBounds(int width, int height) {
fWidth = width;
fHeight = height;
}
////////////////////////////////////////////////////////////////////////////////
// Inherited from SkCanvas
////////////////////////////////////////////////////////////////////////////////
virtual void clear(SkColor) SK_OVERRIDE;
virtual bool clipPath(const SkPath&, SkRegion::Op, bool) SK_OVERRIDE;
virtual bool clipRect(const SkRect&, SkRegion::Op, bool) SK_OVERRIDE;
virtual bool clipRegion(const SkRegion& region, SkRegion::Op op) SK_OVERRIDE;
virtual bool concat(const SkMatrix& matrix) SK_OVERRIDE;
virtual void drawBitmap(const SkBitmap&, SkScalar left, SkScalar top,
const SkPaint*) SK_OVERRIDE;
virtual void drawBitmapRect(const SkBitmap&, const SkIRect* src,
const SkRect& dst, const SkPaint*) SK_OVERRIDE;
virtual void drawBitmapMatrix(const SkBitmap&, const SkMatrix&,
const SkPaint*) SK_OVERRIDE;
virtual void drawBitmapNine(const SkBitmap& bitmap, const SkIRect& center,
const SkRect& dst, const SkPaint*) SK_OVERRIDE;
virtual void drawData(const void*, size_t) SK_OVERRIDE;
virtual void drawPaint(const SkPaint& paint) SK_OVERRIDE;
virtual void drawPath(const SkPath& path, const SkPaint&) SK_OVERRIDE;
virtual void drawPicture(SkPicture& picture) SK_OVERRIDE;
virtual void drawPoints(PointMode, size_t count, const SkPoint pts[],
const SkPaint&) SK_OVERRIDE;
virtual void drawPosText(const void* text, size_t byteLength,
const SkPoint pos[], const SkPaint&) SK_OVERRIDE;
virtual void drawPosTextH(const void* text, size_t byteLength,
const SkScalar xpos[], SkScalar constY, const SkPaint&) SK_OVERRIDE;
virtual void drawRect(const SkRect& rect, const SkPaint&) SK_OVERRIDE;
virtual void drawSprite(const SkBitmap&, int left, int top,
const SkPaint*) SK_OVERRIDE;
virtual void drawText(const void* text, size_t byteLength, SkScalar x,
SkScalar y, const SkPaint&) SK_OVERRIDE;
virtual void drawTextOnPath(const void* text, size_t byteLength,
const SkPath& path, const SkMatrix* matrix,
const SkPaint&) SK_OVERRIDE;
virtual void drawVertices(VertexMode, int vertexCount,
const SkPoint vertices[], const SkPoint texs[],
const SkColor colors[], SkXfermode*,
const uint16_t indices[], int indexCount,
const SkPaint&) SK_OVERRIDE;
virtual void restore() SK_OVERRIDE;
virtual bool rotate(SkScalar degrees) SK_OVERRIDE;
virtual int save(SaveFlags) SK_OVERRIDE;
virtual int saveLayer(const SkRect* bounds, const SkPaint*, SaveFlags) SK_OVERRIDE;
virtual bool scale(SkScalar sx, SkScalar sy) SK_OVERRIDE;
virtual void setMatrix(const SkMatrix& matrix) SK_OVERRIDE;
virtual bool skew(SkScalar sx, SkScalar sy) SK_OVERRIDE;
virtual bool translate(SkScalar dx, SkScalar dy) SK_OVERRIDE;
private:
typedef SkCanvas INHERITED;
std::vector<SkDrawCommand*> commandVector;
std::vector<SkDrawCommand*>::const_iterator it;
int fHeight;
int fWidth;
SkBitmap fBm;
SkHitBox fHitBox;
bool fCalculateHits;
bool fFilter;
/**
Adds the command to the classes vector of commands.
@param command The draw command for execution
*/
void addDrawCommand(SkDrawCommand* command);
};
#endif
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