50c84da68b
https://codereview.chromium.org/13393005/ git-svn-id: http://skia.googlecode.com/svn/trunk@8462 2bbb7eff-a529-9590-31e7-b0007b416f81
268 lines
8.0 KiB
C++
268 lines
8.0 KiB
C++
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/*
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* Copyright 2012 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef SKDEBUGCANVAS_H_
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#define SKDEBUGCANVAS_H_
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#include "SkCanvas.h"
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#include "SkDrawCommand.h"
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#include "SkPicture.h"
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#include "SkTArray.h"
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#include "SkString.h"
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class SkDebugCanvas : public SkCanvas {
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public:
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SkDebugCanvas(int width, int height);
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virtual ~SkDebugCanvas();
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void toggleFilter(bool toggle);
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/**
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* Enable or disable overdraw visualization
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*/
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void setOverdrawViz(bool overdrawViz) { fOverdrawViz = overdrawViz; }
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/**
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Executes all draw calls to the canvas.
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@param canvas The canvas being drawn to
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*/
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void draw(SkCanvas* canvas);
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/**
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Executes the draw calls in the specified range.
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@param canvas The canvas being drawn to
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@param i The beginning of the range
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@param j The end of the range
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TODO(chudy): Implement
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*/
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void drawRange(SkCanvas* canvas, int i, int j);
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/**
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Executes the draw calls up to the specified index.
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@param canvas The canvas being drawn to
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@param index The index of the final command being executed
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*/
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void drawTo(SkCanvas* canvas, int index);
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/**
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Returns the most recently calculated transformation matrix
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*/
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const SkMatrix& getCurrentMatrix() {
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return fMatrix;
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}
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/**
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Returns the most recently calculated clip
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*/
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const SkIRect& getCurrentClip() {
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return fClip;
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}
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/**
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Returns the index of the last draw command to write to the pixel at (x,y)
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*/
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int getCommandAtPoint(int x, int y, int index);
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/**
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Removes the command at the specified index
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@param index The index of the command to delete
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*/
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void deleteDrawCommandAt(int index);
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/**
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Returns the draw command at the given index.
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@param index The index of the command
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*/
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SkDrawCommand* getDrawCommandAt(int index);
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/**
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Sets the draw command for a given index.
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@param index The index to overwrite
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@param command The new command
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*/
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void setDrawCommandAt(int index, SkDrawCommand* command);
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/**
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Returns information about the command at the given index.
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@param index The index of the command
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*/
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SkTDArray<SkString*>* getCommandInfo(int index);
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/**
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Returns the visibility of the command at the given index.
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@param index The index of the command
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*/
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bool getDrawCommandVisibilityAt(int index);
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/**
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Returns the vector of draw commands
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DEPRECATED: please use getDrawCommandAt and getSize instead
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*/
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const SkTDArray<SkDrawCommand*>& getDrawCommands() const;
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/**
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Returns the vector of draw commands. Do not use this entry
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point - it is going away!
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*/
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SkTDArray<SkDrawCommand*>& getDrawCommands();
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/**
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* Returns the string vector of draw commands
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*/
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SkTArray<SkString>* getDrawCommandsAsStrings() const;
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/**
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Returns length of draw command vector.
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*/
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int getSize() {
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return fCommandVector.count();
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}
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/**
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Toggles the visibility / execution of the draw command at index i with
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the value of toggle.
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*/
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void toggleCommand(int index, bool toggle);
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void setBounds(int width, int height) {
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fWidth = width;
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fHeight = height;
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}
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void setUserMatrix(SkMatrix matrix) {
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fUserMatrix = matrix;
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}
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////////////////////////////////////////////////////////////////////////////////
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// Inherited from SkCanvas
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////////////////////////////////////////////////////////////////////////////////
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virtual void clear(SkColor) SK_OVERRIDE;
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virtual bool clipPath(const SkPath&, SkRegion::Op, bool) SK_OVERRIDE;
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virtual bool clipRect(const SkRect&, SkRegion::Op, bool) SK_OVERRIDE;
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virtual bool clipRRect(const SkRRect& rrect,
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SkRegion::Op op = SkRegion::kIntersect_Op,
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bool doAntiAlias = false) SK_OVERRIDE;
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virtual bool clipRegion(const SkRegion& region, SkRegion::Op op) SK_OVERRIDE;
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virtual bool concat(const SkMatrix& matrix) SK_OVERRIDE;
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virtual void drawBitmap(const SkBitmap&, SkScalar left, SkScalar top,
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const SkPaint*) SK_OVERRIDE;
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virtual void drawBitmapRectToRect(const SkBitmap&, const SkRect* src,
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const SkRect& dst, const SkPaint*) SK_OVERRIDE;
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virtual void drawBitmapMatrix(const SkBitmap&, const SkMatrix&,
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const SkPaint*) SK_OVERRIDE;
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virtual void drawBitmapNine(const SkBitmap& bitmap, const SkIRect& center,
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const SkRect& dst, const SkPaint*) SK_OVERRIDE;
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virtual void drawData(const void*, size_t) SK_OVERRIDE;
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virtual void drawOval(const SkRect& oval, const SkPaint&) SK_OVERRIDE;
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virtual void drawPaint(const SkPaint& paint) SK_OVERRIDE;
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virtual void drawPath(const SkPath& path, const SkPaint&) SK_OVERRIDE;
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virtual void drawPicture(SkPicture& picture) SK_OVERRIDE;
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virtual void drawPoints(PointMode, size_t count, const SkPoint pts[],
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const SkPaint&) SK_OVERRIDE;
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virtual void drawPosText(const void* text, size_t byteLength,
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const SkPoint pos[], const SkPaint&) SK_OVERRIDE;
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virtual void drawPosTextH(const void* text, size_t byteLength,
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const SkScalar xpos[], SkScalar constY,
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const SkPaint&) SK_OVERRIDE;
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virtual void drawRect(const SkRect& rect, const SkPaint&) SK_OVERRIDE;
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virtual void drawRRect(const SkRRect& rrect, const SkPaint& paint) SK_OVERRIDE;
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virtual void drawSprite(const SkBitmap&, int left, int top,
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const SkPaint*) SK_OVERRIDE;
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virtual void drawText(const void* text, size_t byteLength, SkScalar x,
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SkScalar y, const SkPaint&) SK_OVERRIDE;
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virtual void drawTextOnPath(const void* text, size_t byteLength,
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const SkPath& path, const SkMatrix* matrix,
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const SkPaint&) SK_OVERRIDE;
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virtual void drawVertices(VertexMode, int vertexCount,
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const SkPoint vertices[], const SkPoint texs[],
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const SkColor colors[], SkXfermode*,
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const uint16_t indices[], int indexCount,
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const SkPaint&) SK_OVERRIDE;
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virtual void restore() SK_OVERRIDE;
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virtual bool rotate(SkScalar degrees) SK_OVERRIDE;
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virtual int save(SaveFlags) SK_OVERRIDE;
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virtual int saveLayer(const SkRect* bounds, const SkPaint*, SaveFlags) SK_OVERRIDE;
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virtual bool scale(SkScalar sx, SkScalar sy) SK_OVERRIDE;
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virtual void setMatrix(const SkMatrix& matrix) SK_OVERRIDE;
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virtual bool skew(SkScalar sx, SkScalar sy) SK_OVERRIDE;
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virtual bool translate(SkScalar dx, SkScalar dy) SK_OVERRIDE;
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static const int kVizImageHeight = 256;
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static const int kVizImageWidth = 256;
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private:
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SkTDArray<SkDrawCommand*> fCommandVector;
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int fHeight;
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int fWidth;
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SkBitmap fBm;
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bool fFilter;
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int fIndex;
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SkMatrix fUserMatrix;
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SkMatrix fMatrix;
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SkIRect fClip;
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bool fOverdrawViz;
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SkDrawFilter* fOverdrawFilter;
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/**
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Number of unmatched save() calls at any point during a draw.
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If there are any saveLayer() calls outstanding, we need to resolve
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all of them, which in practice means resolving all save() calls,
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to avoid corruption of our canvas.
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*/
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int fOutstandingSaveCount;
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/**
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Adds the command to the classes vector of commands.
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@param command The draw command for execution
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*/
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void addDrawCommand(SkDrawCommand* command);
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/**
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Applies any panning and zooming the user has specified before
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drawing anything else into the canvas.
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*/
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void applyUserTransform(SkCanvas* canvas);
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typedef SkCanvas INHERITED;
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};
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#endif
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