| |
| /* |
| * 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 SKDRAWCOMMAND_H_ |
| #define SKDRAWCOMMAND_H_ |
| |
| #include "SkCanvas.h" |
| #include "SkString.h" |
| |
| class SK_API SkDrawCommand { |
| public: |
| enum OpType { |
| kBeginDrawPicture_OpType, |
| kClipPath_OpType, |
| kClipRegion_OpType, |
| kClipRect_OpType, |
| kClipRRect_OpType, |
| kConcat_OpType, |
| kDrawBitmap_OpType, |
| kDrawBitmapNine_OpType, |
| kDrawBitmapRect_OpType, |
| kDrawClear_OpType, |
| kDrawDRRect_OpType, |
| kDrawOval_OpType, |
| kDrawPaint_OpType, |
| kDrawPatch_OpType, |
| kDrawPath_OpType, |
| kDrawPoints_OpType, |
| kDrawPosText_OpType, |
| kDrawPosTextH_OpType, |
| kDrawRect_OpType, |
| kDrawRRect_OpType, |
| kDrawSprite_OpType, |
| kDrawText_OpType, |
| kDrawTextBlob_OpType, |
| kDrawTextOnPath_OpType, |
| kDrawVertices_OpType, |
| kEndDrawPicture_OpType, |
| kRestore_OpType, |
| kSave_OpType, |
| kSaveLayer_OpType, |
| kSetMatrix_OpType, |
| |
| kLast_OpType = kSetMatrix_OpType |
| }; |
| |
| static const int kOpTypeCount = kLast_OpType + 1; |
| |
| SkDrawCommand(OpType opType); |
| |
| virtual ~SkDrawCommand(); |
| |
| virtual SkString toString() const; |
| |
| virtual const char* toCString() const { |
| return GetCommandString(fOpType); |
| } |
| |
| bool isVisible() const { |
| return fVisible; |
| } |
| |
| void setVisible(bool toggle) { |
| fVisible = toggle; |
| } |
| |
| const SkTDArray<SkString*>* Info() const { return &fInfo; } |
| virtual void execute(SkCanvas*) const = 0; |
| virtual void vizExecute(SkCanvas*) const {} |
| |
| virtual void setUserMatrix(const SkMatrix&) {} |
| |
| // The next "active" system is only used by save, saveLayer, and restore. |
| // It is used to determine which saveLayers are currently active (at a |
| // given point in the rendering). |
| // saves just return a kPushLayer action but don't track active state |
| // restores just return a kPopLayer action |
| // saveLayers return kPushLayer but also track the active state |
| enum Action { |
| kNone_Action, |
| kPopLayer_Action, |
| kPushLayer_Action, |
| }; |
| virtual Action action() const { return kNone_Action; } |
| virtual void setActive(bool active) {} |
| virtual bool active() const { return false; } |
| |
| OpType getType() const { return fOpType; } |
| |
| virtual bool render(SkCanvas* canvas) const { return false; } |
| |
| static const char* GetCommandString(OpType type); |
| |
| protected: |
| SkTDArray<SkString*> fInfo; |
| |
| private: |
| OpType fOpType; |
| bool fVisible; |
| }; |
| |
| class SkRestoreCommand : public SkDrawCommand { |
| public: |
| SkRestoreCommand(); |
| void execute(SkCanvas* canvas) const override; |
| Action action() const override { return kPopLayer_Action; } |
| |
| private: |
| typedef SkDrawCommand INHERITED; |
| }; |
| |
| class SkClearCommand : public SkDrawCommand { |
| public: |
| SkClearCommand(SkColor color); |
| void execute(SkCanvas* canvas) const override; |
| private: |
| SkColor fColor; |
| |
| typedef SkDrawCommand INHERITED; |
| }; |
| |
| class SkClipPathCommand : public SkDrawCommand { |
| public: |
| SkClipPathCommand(const SkPath& path, SkRegion::Op op, bool doAA); |
| void execute(SkCanvas* canvas) const override; |
| bool render(SkCanvas* canvas) const override; |
| private: |
| SkPath fPath; |
| SkRegion::Op fOp; |
| bool fDoAA; |
| |
| typedef SkDrawCommand INHERITED; |
| }; |
| |
| class SkClipRegionCommand : public SkDrawCommand { |
| public: |
| SkClipRegionCommand(const SkRegion& region, SkRegion::Op op); |
| void execute(SkCanvas* canvas) const override; |
| private: |
| SkRegion fRegion; |
| SkRegion::Op fOp; |
| |
| typedef SkDrawCommand INHERITED; |
| }; |
| |
| class SkClipRectCommand : public SkDrawCommand { |
| public: |
| SkClipRectCommand(const SkRect& rect, SkRegion::Op op, bool doAA); |
| void execute(SkCanvas* canvas) const override; |
| |
| const SkRect& rect() const { return fRect; } |
| SkRegion::Op op() const { return fOp; } |
| bool doAA() const { return fDoAA; } |
| |
| private: |
| SkRect fRect; |
| SkRegion::Op fOp; |
| bool fDoAA; |
| |
| typedef SkDrawCommand INHERITED; |
| }; |
| |
| class SkClipRRectCommand : public SkDrawCommand { |
| public: |
| SkClipRRectCommand(const SkRRect& rrect, SkRegion::Op op, bool doAA); |
| void execute(SkCanvas* canvas) const override; |
| bool render(SkCanvas* canvas) const override; |
| |
| const SkRRect& rrect() const { return fRRect; } |
| SkRegion::Op op() const { return fOp; } |
| bool doAA() const { return fDoAA; } |
| |
| private: |
| SkRRect fRRect; |
| SkRegion::Op fOp; |
| bool fDoAA; |
| |
| typedef SkDrawCommand INHERITED; |
| }; |
| |
| class SkConcatCommand : public SkDrawCommand { |
| public: |
| SkConcatCommand(const SkMatrix& matrix); |
| void execute(SkCanvas* canvas) const override; |
| private: |
| SkMatrix fMatrix; |
| |
| typedef SkDrawCommand INHERITED; |
| }; |
| |
| class SkDrawBitmapCommand : public SkDrawCommand { |
| public: |
| SkDrawBitmapCommand(const SkBitmap& bitmap, SkScalar left, SkScalar top, |
| const SkPaint* paint); |
| void execute(SkCanvas* canvas) const override; |
| bool render(SkCanvas* canvas) const override; |
| private: |
| SkBitmap fBitmap; |
| SkScalar fLeft; |
| SkScalar fTop; |
| SkPaint fPaint; |
| SkPaint* fPaintPtr; |
| |
| typedef SkDrawCommand INHERITED; |
| }; |
| |
| class SkDrawBitmapNineCommand : public SkDrawCommand { |
| public: |
| SkDrawBitmapNineCommand(const SkBitmap& bitmap, const SkIRect& center, |
| const SkRect& dst, const SkPaint* paint); |
| void execute(SkCanvas* canvas) const override; |
| bool render(SkCanvas* canvas) const override; |
| private: |
| SkBitmap fBitmap; |
| SkIRect fCenter; |
| SkRect fDst; |
| SkPaint fPaint; |
| SkPaint* fPaintPtr; |
| |
| typedef SkDrawCommand INHERITED; |
| }; |
| |
| class SkDrawBitmapRectCommand : public SkDrawCommand { |
| public: |
| SkDrawBitmapRectCommand(const SkBitmap& bitmap, const SkRect* src, |
| const SkRect& dst, const SkPaint* paint, |
| SkCanvas::SrcRectConstraint); |
| void execute(SkCanvas* canvas) const override; |
| bool render(SkCanvas* canvas) const override; |
| |
| const SkBitmap& bitmap() const { return fBitmap; } |
| |
| // The non-const 'paint' method allows modification of this object's |
| // SkPaint. For this reason the ctor and setPaint method make a local copy. |
| // The 'fPaintPtr' member acts a signal that the local SkPaint is valid |
| // (since only an SkPaint* is passed into the ctor). |
| const SkPaint* paint() const { return fPaintPtr; } |
| SkPaint* paint() { return fPaintPtr; } |
| |
| void setPaint(const SkPaint& paint) { fPaint = paint; fPaintPtr = &fPaint; } |
| |
| const SkRect* srcRect() const { return fSrc.isEmpty() ? NULL : &fSrc; } |
| void setSrcRect(const SkRect& src) { fSrc = src; } |
| |
| const SkRect& dstRect() const { return fDst; } |
| void setDstRect(const SkRect& dst) { fDst = dst; } |
| |
| SkCanvas::SrcRectConstraint constraint() const { return fConstraint; } |
| void setConstraint(SkCanvas::SrcRectConstraint constraint) { fConstraint = constraint; } |
| |
| private: |
| SkBitmap fBitmap; |
| SkRect fSrc; |
| SkRect fDst; |
| SkPaint fPaint; |
| SkPaint* fPaintPtr; |
| SkCanvas::SrcRectConstraint fConstraint; |
| |
| typedef SkDrawCommand INHERITED; |
| }; |
| |
| class SkDrawOvalCommand : public SkDrawCommand { |
| public: |
| SkDrawOvalCommand(const SkRect& oval, const SkPaint& paint); |
| void execute(SkCanvas* canvas) const override; |
| bool render(SkCanvas* canvas) const override; |
| private: |
| SkRect fOval; |
| SkPaint fPaint; |
| |
| typedef SkDrawCommand INHERITED; |
| }; |
| |
| class SkDrawPaintCommand : public SkDrawCommand { |
| public: |
| SkDrawPaintCommand(const SkPaint& paint); |
| void execute(SkCanvas* canvas) const override; |
| bool render(SkCanvas* canvas) const override; |
| private: |
| SkPaint fPaint; |
| |
| typedef SkDrawCommand INHERITED; |
| }; |
| |
| class SkDrawPathCommand : public SkDrawCommand { |
| public: |
| SkDrawPathCommand(const SkPath& path, const SkPaint& paint); |
| void execute(SkCanvas* canvas) const override; |
| bool render(SkCanvas* canvas) const override; |
| |
| private: |
| SkPath fPath; |
| SkPaint fPaint; |
| |
| typedef SkDrawCommand INHERITED; |
| }; |
| |
| class SkBeginDrawPictureCommand : public SkDrawCommand { |
| public: |
| SkBeginDrawPictureCommand(const SkPicture* picture, |
| const SkMatrix* matrix, |
| const SkPaint* paint); |
| |
| void execute(SkCanvas* canvas) const override; |
| bool render(SkCanvas* canvas) const override; |
| |
| private: |
| SkAutoTUnref<const SkPicture> fPicture; |
| SkTLazy<SkMatrix> fMatrix; |
| SkTLazy<SkPaint> fPaint; |
| |
| typedef SkDrawCommand INHERITED; |
| }; |
| |
| class SkEndDrawPictureCommand : public SkDrawCommand { |
| public: |
| SkEndDrawPictureCommand(bool restore); |
| |
| void execute(SkCanvas* canvas) const override; |
| |
| private: |
| bool fRestore; |
| |
| typedef SkDrawCommand INHERITED; |
| }; |
| |
| class SkDrawPointsCommand : public SkDrawCommand { |
| public: |
| SkDrawPointsCommand(SkCanvas::PointMode mode, size_t count, const SkPoint pts[], |
| const SkPaint& paint); |
| virtual ~SkDrawPointsCommand() { delete [] fPts; } |
| void execute(SkCanvas* canvas) const override; |
| bool render(SkCanvas* canvas) const override; |
| private: |
| SkCanvas::PointMode fMode; |
| size_t fCount; |
| SkPoint* fPts; |
| SkPaint fPaint; |
| |
| typedef SkDrawCommand INHERITED; |
| }; |
| |
| class SkDrawTextCommand : public SkDrawCommand { |
| public: |
| SkDrawTextCommand(const void* text, size_t byteLength, SkScalar x, SkScalar y, |
| const SkPaint& paint); |
| virtual ~SkDrawTextCommand() { delete [] fText; } |
| void execute(SkCanvas* canvas) const override; |
| private: |
| char* fText; |
| size_t fByteLength; |
| SkScalar fX; |
| SkScalar fY; |
| SkPaint fPaint; |
| |
| typedef SkDrawCommand INHERITED; |
| }; |
| |
| class SkDrawPosTextCommand : public SkDrawCommand { |
| public: |
| SkDrawPosTextCommand(const void* text, size_t byteLength, const SkPoint pos[], |
| const SkPaint& paint); |
| virtual ~SkDrawPosTextCommand() { delete [] fPos; delete [] fText; } |
| void execute(SkCanvas* canvas) const override; |
| private: |
| char* fText; |
| size_t fByteLength; |
| SkPoint* fPos; |
| SkPaint fPaint; |
| |
| typedef SkDrawCommand INHERITED; |
| }; |
| |
| class SkDrawTextOnPathCommand : public SkDrawCommand { |
| public: |
| SkDrawTextOnPathCommand(const void* text, size_t byteLength, const SkPath& path, |
| const SkMatrix* matrix, const SkPaint& paint); |
| virtual ~SkDrawTextOnPathCommand() { delete [] fText; } |
| void execute(SkCanvas* canvas) const override; |
| private: |
| char* fText; |
| size_t fByteLength; |
| SkPath fPath; |
| SkMatrix fMatrix; |
| SkPaint fPaint; |
| |
| typedef SkDrawCommand INHERITED; |
| }; |
| |
| class SkDrawPosTextHCommand : public SkDrawCommand { |
| public: |
| SkDrawPosTextHCommand(const void* text, size_t byteLength, const SkScalar xpos[], |
| SkScalar constY, const SkPaint& paint); |
| virtual ~SkDrawPosTextHCommand() { delete [] fXpos; delete [] fText; } |
| void execute(SkCanvas* canvas) const override; |
| private: |
| SkScalar* fXpos; |
| char* fText; |
| size_t fByteLength; |
| SkScalar fConstY; |
| SkPaint fPaint; |
| |
| typedef SkDrawCommand INHERITED; |
| }; |
| |
| class SkDrawTextBlobCommand : public SkDrawCommand { |
| public: |
| SkDrawTextBlobCommand(const SkTextBlob* blob, SkScalar x, SkScalar y, const SkPaint& paint); |
| |
| void execute(SkCanvas* canvas) const override; |
| bool render(SkCanvas* canvas) const override; |
| |
| private: |
| SkAutoTUnref<const SkTextBlob> fBlob; |
| SkScalar fXPos; |
| SkScalar fYPos; |
| SkPaint fPaint; |
| |
| typedef SkDrawCommand INHERITED; |
| }; |
| |
| class SkDrawPatchCommand : public SkDrawCommand { |
| public: |
| SkDrawPatchCommand(const SkPoint cubics[12], const SkColor colors[4], |
| const SkPoint texCoords[4], SkXfermode* xmode, |
| const SkPaint& paint); |
| void execute(SkCanvas* canvas) const override; |
| |
| private: |
| SkPoint fCubics[12]; |
| SkColor fColors[4]; |
| SkPoint fTexCoords[4]; |
| SkAutoTUnref<SkXfermode> fXfermode; |
| SkPaint fPaint; |
| |
| typedef SkDrawCommand INHERITED; |
| }; |
| |
| |
| class SkDrawRectCommand : public SkDrawCommand { |
| public: |
| SkDrawRectCommand(const SkRect& rect, const SkPaint& paint); |
| void execute(SkCanvas* canvas) const override; |
| |
| const SkRect& rect() const { return fRect; } |
| const SkPaint& paint() const { return fPaint; } |
| private: |
| SkRect fRect; |
| SkPaint fPaint; |
| |
| typedef SkDrawCommand INHERITED; |
| }; |
| |
| class SkDrawRRectCommand : public SkDrawCommand { |
| public: |
| SkDrawRRectCommand(const SkRRect& rrect, const SkPaint& paint); |
| void execute(SkCanvas* canvas) const override; |
| bool render(SkCanvas* canvas) const override; |
| private: |
| SkRRect fRRect; |
| SkPaint fPaint; |
| |
| typedef SkDrawCommand INHERITED; |
| }; |
| |
| class SkDrawDRRectCommand : public SkDrawCommand { |
| public: |
| SkDrawDRRectCommand(const SkRRect& outer, const SkRRect& inner, |
| const SkPaint& paint); |
| void execute(SkCanvas* canvas) const override; |
| bool render(SkCanvas* canvas) const override; |
| private: |
| SkRRect fOuter; |
| SkRRect fInner; |
| SkPaint fPaint; |
| |
| typedef SkDrawCommand INHERITED; |
| }; |
| |
| class SkDrawSpriteCommand : public SkDrawCommand { |
| public: |
| SkDrawSpriteCommand(const SkBitmap& bitmap, int left, int top, const SkPaint* paint); |
| void execute(SkCanvas* canvas) const override; |
| bool render(SkCanvas* canvas) const override; |
| private: |
| SkBitmap fBitmap; |
| int fLeft; |
| int fTop; |
| SkPaint fPaint; |
| SkPaint* fPaintPtr; |
| |
| typedef SkDrawCommand INHERITED; |
| }; |
| |
| class SkDrawVerticesCommand : public SkDrawCommand { |
| public: |
| SkDrawVerticesCommand(SkCanvas::VertexMode vmode, int vertexCount, |
| const SkPoint vertices[], const SkPoint texs[], |
| const SkColor colors[], SkXfermode* xfermode, |
| const uint16_t indices[], int indexCount, |
| const SkPaint& paint); |
| virtual ~SkDrawVerticesCommand(); |
| void execute(SkCanvas* canvas) const override; |
| private: |
| SkCanvas::VertexMode fVmode; |
| int fVertexCount; |
| SkPoint* fVertices; |
| SkPoint* fTexs; |
| SkColor* fColors; |
| SkXfermode* fXfermode; |
| uint16_t* fIndices; |
| int fIndexCount; |
| SkPaint fPaint; |
| |
| typedef SkDrawCommand INHERITED; |
| }; |
| |
| class SkSaveCommand : public SkDrawCommand { |
| public: |
| SkSaveCommand(); |
| void execute(SkCanvas* canvas) const override; |
| Action action() const override { return kPushLayer_Action; } |
| private: |
| typedef SkDrawCommand INHERITED; |
| }; |
| |
| class SkSaveLayerCommand : public SkDrawCommand { |
| public: |
| SkSaveLayerCommand(const SkRect* bounds, const SkPaint* paint, |
| SkCanvas::SaveFlags flags); |
| void execute(SkCanvas* canvas) const override; |
| void vizExecute(SkCanvas* canvas) const override; |
| Action action() const override{ return kPushLayer_Action; } |
| void setActive(bool active) override { fActive = active; } |
| bool active() const override { return fActive; } |
| |
| const SkPaint* paint() const { return fPaintPtr; } |
| |
| private: |
| SkRect fBounds; |
| SkPaint fPaint; |
| SkPaint* fPaintPtr; |
| SkCanvas::SaveFlags fFlags; |
| |
| bool fActive; |
| |
| typedef SkDrawCommand INHERITED; |
| }; |
| |
| class SkSetMatrixCommand : public SkDrawCommand { |
| public: |
| SkSetMatrixCommand(const SkMatrix& matrix); |
| void setUserMatrix(const SkMatrix&) override; |
| void execute(SkCanvas* canvas) const override; |
| private: |
| SkMatrix fUserMatrix; |
| SkMatrix fMatrix; |
| |
| typedef SkDrawCommand INHERITED; |
| }; |
| |
| #endif |