SkNWayCanvas.h revision 363e546ed626b6dbbc42f5db87b3594bc0b5944b 
1
2/*
3 * Copyright 2011 Google Inc.
4 *
5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file.
7 */
8
9#ifndef SkNWayCanvas_DEFINED
10#define SkNWayCanvas_DEFINED
11
12#include "SkCanvas.h"
13
14class SkNWayCanvas : public SkCanvas {
15public:
16    SkNWayCanvas(int width, int height);
17    virtual ~SkNWayCanvas();
18
19    void addCanvas(SkCanvas*);
20    void removeCanvas(SkCanvas*);
21    void removeAll();
22
23    ///////////////////////////////////////////////////////////////////////////
24    // These are forwarded to the N canvases we're referencing
25
26    virtual int save(SaveFlags) SK_OVERRIDE;
27    virtual int saveLayer(const SkRect* bounds, const SkPaint*,
28                          SaveFlags) SK_OVERRIDE;
29    virtual void restore() SK_OVERRIDE;
30    virtual bool translate(SkScalar dx, SkScalar dy) SK_OVERRIDE;
31    virtual bool scale(SkScalar sx, SkScalar sy) SK_OVERRIDE;
32    virtual bool rotate(SkScalar degrees) SK_OVERRIDE;
33    virtual bool skew(SkScalar sx, SkScalar sy) SK_OVERRIDE;
34    virtual bool concat(const SkMatrix& matrix) SK_OVERRIDE;
35    virtual void setMatrix(const SkMatrix& matrix) SK_OVERRIDE;
36    virtual bool clipRect(const SkRect&, SkRegion::Op, bool) SK_OVERRIDE;
37    virtual bool clipRRect(const SkRRect&, SkRegion::Op, bool) SK_OVERRIDE;
38    virtual bool clipPath(const SkPath&, SkRegion::Op, bool) SK_OVERRIDE;
39    virtual bool clipRegion(const SkRegion& deviceRgn,
40                            SkRegion::Op) SK_OVERRIDE;
41
42    virtual void drawPaint(const SkPaint& paint) SK_OVERRIDE;
43    virtual void drawPoints(PointMode mode, size_t count, const SkPoint pts[],
44                            const SkPaint&) SK_OVERRIDE;
45    virtual void drawOval(const SkRect&, const SkPaint&) SK_OVERRIDE;
46    virtual void drawRect(const SkRect&, const SkPaint&) SK_OVERRIDE;
47    virtual void drawRRect(const SkRRect&, const SkPaint&) SK_OVERRIDE;
48    virtual void drawPath(const SkPath& path, const SkPaint&) SK_OVERRIDE;
49    virtual void drawBitmap(const SkBitmap& bitmap, SkScalar left, SkScalar top,
50                            const SkPaint*) SK_OVERRIDE;
51    virtual void drawBitmapRectToRect(const SkBitmap& bitmap, const SkRect* src,
52                                const SkRect& dst, const SkPaint*) SK_OVERRIDE;
53    virtual void drawBitmapMatrix(const SkBitmap& bitmap, const SkMatrix& m,
54                                  const SkPaint*) SK_OVERRIDE;
55    virtual void drawSprite(const SkBitmap& bitmap, int left, int top,
56                            const SkPaint*) SK_OVERRIDE;
57    virtual void drawText(const void* text, size_t byteLength, SkScalar x,
58                          SkScalar y, const SkPaint&) SK_OVERRIDE;
59    virtual void drawPosText(const void* text, size_t byteLength,
60                             const SkPoint pos[], const SkPaint&) SK_OVERRIDE;
61    virtual void drawPosTextH(const void* text, size_t byteLength,
62                              const SkScalar xpos[], SkScalar constY,
63                              const SkPaint&) SK_OVERRIDE;
64    virtual void drawTextOnPath(const void* text, size_t byteLength,
65                                const SkPath& path, const SkMatrix* matrix,
66                                const SkPaint&) SK_OVERRIDE;
67    virtual void drawPicture(SkPicture&) SK_OVERRIDE;
68    virtual void drawVertices(VertexMode vmode, int vertexCount,
69                              const SkPoint vertices[], const SkPoint texs[],
70                              const SkColor colors[], SkXfermode* xmode,
71                              const uint16_t indices[], int indexCount,
72                              const SkPaint&) SK_OVERRIDE;
73
74    virtual SkBounder* setBounder(SkBounder*) SK_OVERRIDE;
75    virtual SkDrawFilter* setDrawFilter(SkDrawFilter*) SK_OVERRIDE;
76
77private:
78    SkTDArray<SkCanvas*> fList;
79
80    class Iter;
81
82    typedef SkCanvas INHERITED;
83};
84
85
86#endif
87
88