SkNWayCanvas.h revision f70b531daaf47db1ee95c70da9843f1dd1f418d3 
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 "../private/SkTDArray.h"
13#include "SkCanvas.h"
14
15class SK_API SkNWayCanvas : public SkCanvas {
16public:
17    SkNWayCanvas(int width, int height);
18    virtual ~SkNWayCanvas();
19
20    virtual void addCanvas(SkCanvas*);
21    virtual void removeCanvas(SkCanvas*);
22    virtual void removeAll();
23
24    ///////////////////////////////////////////////////////////////////////////
25    // These are forwarded to the N canvases we're referencing
26
27#ifdef SK_SUPPORT_LEGACY_DRAWFILTER
28    SkDrawFilter* setDrawFilter(SkDrawFilter*) override;
29#endif
30
31protected:
32    SkTDArray<SkCanvas*> fList;
33
34    void willSave() override;
35    SaveLayerStrategy getSaveLayerStrategy(const SaveLayerRec&) override;
36    void willRestore() override;
37
38    void didConcat(const SkMatrix&) override;
39    void didSetMatrix(const SkMatrix&) override;
40
41    void onDrawDRRect(const SkRRect&, const SkRRect&, const SkPaint&) override;
42    virtual void onDrawText(const void* text, size_t byteLength, SkScalar x, SkScalar y,
43                            const SkPaint&) override;
44    virtual void onDrawPosText(const void* text, size_t byteLength, const SkPoint pos[],
45                               const SkPaint&) override;
46    virtual void onDrawPosTextH(const void* text, size_t byteLength, const SkScalar xpos[],
47                                SkScalar constY, const SkPaint&) override;
48    virtual void onDrawTextOnPath(const void* text, size_t byteLength, const SkPath& path,
49                                  const SkMatrix* matrix, const SkPaint&) override;
50    virtual void onDrawTextBlob(const SkTextBlob* blob, SkScalar x, SkScalar y,
51                                const SkPaint& paint) override;
52    virtual void onDrawPatch(const SkPoint cubics[12], const SkColor colors[4],
53                             const SkPoint texCoords[4], SkXfermode* xmode,
54                             const SkPaint& paint) override;
55
56    void onDrawPaint(const SkPaint&) override;
57    void onDrawPoints(PointMode, size_t count, const SkPoint pts[], const SkPaint&) override;
58    void onDrawRect(const SkRect&, const SkPaint&) override;
59    void onDrawOval(const SkRect&, const SkPaint&) override;
60    void onDrawRRect(const SkRRect&, const SkPaint&) override;
61    void onDrawPath(const SkPath&, const SkPaint&) override;
62    void onDrawBitmap(const SkBitmap&, SkScalar left, SkScalar top, const SkPaint*) override;
63    void onDrawBitmapRect(const SkBitmap&, const SkRect* src, const SkRect& dst, const SkPaint*,
64                          SrcRectConstraint) override;
65    void onDrawImage(const SkImage*, SkScalar left, SkScalar top, const SkPaint*) override;
66    void onDrawImageRect(const SkImage*, const SkRect* src, const SkRect& dst,
67                         const SkPaint*, SrcRectConstraint) override;
68    void onDrawBitmapNine(const SkBitmap&, const SkIRect& center, const SkRect& dst,
69                          const SkPaint*) override;
70    void onDrawVertices(VertexMode vmode, int vertexCount,
71                              const SkPoint vertices[], const SkPoint texs[],
72                              const SkColor colors[], SkXfermode* xmode,
73                              const uint16_t indices[], int indexCount,
74                              const SkPaint&) override;
75
76    void onClipRect(const SkRect&, SkRegion::Op, ClipEdgeStyle) override;
77    void onClipRRect(const SkRRect&, SkRegion::Op, ClipEdgeStyle) override;
78    void onClipPath(const SkPath&, SkRegion::Op, ClipEdgeStyle) override;
79    void onClipRegion(const SkRegion&, SkRegion::Op) override;
80
81    void onDrawPicture(const SkPicture*, const SkMatrix*, const SkPaint*) override;
82    void onDrawAnnotation(const SkRect&, const char[], SkData*) override;
83
84    class Iter;
85
86private:
87    typedef SkCanvas INHERITED;
88};
89
90
91#endif
92