1
2#ifndef SkNWayCanvas_DEFINED
3#define SkNWayCanvas_DEFINED
4
5#include "SkCanvas.h"
6
7class SkNWayCanvas : public SkCanvas {
8public:
9    SkNWayCanvas();
10    virtual ~SkNWayCanvas();
11
12    void addCanvas(SkCanvas*);
13    void removeCanvas(SkCanvas*);
14    void removeAll();
15
16    ///////////////////////////////////////////////////////////////////////////
17    // These are forwarded to the N canvases we're referencing
18
19    virtual int save(SaveFlags flags = kMatrixClip_SaveFlag);
20    virtual int saveLayer(const SkRect* bounds, const SkPaint* paint,
21                          SaveFlags flags = kARGB_ClipLayer_SaveFlag);
22    virtual void restore();
23    virtual bool translate(SkScalar dx, SkScalar dy);
24    virtual bool scale(SkScalar sx, SkScalar sy);
25    virtual bool rotate(SkScalar degrees);
26    virtual bool skew(SkScalar sx, SkScalar sy);
27    virtual bool concat(const SkMatrix& matrix);
28    virtual void setMatrix(const SkMatrix& matrix);
29    virtual bool clipRect(const SkRect& rect,
30                          SkRegion::Op op = SkRegion::kIntersect_Op);
31    virtual bool clipPath(const SkPath& path,
32                          SkRegion::Op op = SkRegion::kIntersect_Op);
33    virtual bool clipRegion(const SkRegion& deviceRgn,
34                            SkRegion::Op op = SkRegion::kIntersect_Op);
35
36    virtual void drawPaint(const SkPaint& paint);
37    virtual void drawPoints(PointMode mode, size_t count, const SkPoint pts[],
38                            const SkPaint& paint);
39    virtual void drawRect(const SkRect& rect, const SkPaint& paint);
40    virtual void drawPath(const SkPath& path, const SkPaint& paint);
41    virtual void drawBitmap(const SkBitmap& bitmap, SkScalar left, SkScalar top,
42                            const SkPaint* paint = NULL);
43    virtual void drawBitmapRect(const SkBitmap& bitmap, const SkIRect* src,
44                                const SkRect& dst, const SkPaint* paint = NULL);
45    virtual void drawBitmapMatrix(const SkBitmap& bitmap, const SkMatrix& m,
46                                  const SkPaint* paint = NULL);
47    virtual void drawSprite(const SkBitmap& bitmap, int left, int top,
48                            const SkPaint* paint = NULL);
49    virtual void drawText(const void* text, size_t byteLength, SkScalar x,
50                          SkScalar y, const SkPaint& paint);
51    virtual void drawPosText(const void* text, size_t byteLength,
52                             const SkPoint pos[], const SkPaint& paint);
53    virtual void drawPosTextH(const void* text, size_t byteLength,
54                              const SkScalar xpos[], SkScalar constY,
55                              const SkPaint& paint);
56    virtual void drawTextOnPath(const void* text, size_t byteLength,
57                                const SkPath& path, const SkMatrix* matrix,
58                                const SkPaint& paint);
59    virtual void drawPicture(SkPicture&);
60    virtual void drawShape(SkShape*);
61    virtual void drawVertices(VertexMode vmode, int vertexCount,
62                              const SkPoint vertices[], const SkPoint texs[],
63                              const SkColor colors[], SkXfermode* xmode,
64                              const uint16_t indices[], int indexCount,
65                              const SkPaint& paint);
66
67    virtual SkBounder* setBounder(SkBounder* bounder);
68    virtual SkDrawFilter* setDrawFilter(SkDrawFilter* filter);
69
70private:
71    SkTDArray<SkCanvas*> fList;
72
73    class Iter;
74
75    typedef SkCanvas INHERITED;
76};
77
78
79#endif
80
81