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 "SkNoDrawCanvas.h"
14
15class SK_API SkNWayCanvas : public SkNoDrawCanvas {
16public:
17    SkNWayCanvas(int width, int height);
18    ~SkNWayCanvas() override;
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    void onDrawTextRSXform(const void* text, size_t byteLength, const SkRSXform xform[],
53                           const SkRect* cull, const SkPaint& paint) override;
54    virtual void onDrawPatch(const SkPoint cubics[12], const SkColor colors[4],
55                             const SkPoint texCoords[4], SkBlendMode,
56                             const SkPaint& paint) override;
57
58    void onDrawPaint(const SkPaint&) override;
59    void onDrawPoints(PointMode, size_t count, const SkPoint pts[], const SkPaint&) override;
60    void onDrawRect(const SkRect&, const SkPaint&) override;
61    void onDrawOval(const SkRect&, const SkPaint&) override;
62    void onDrawArc(const SkRect&, SkScalar, SkScalar, bool, const SkPaint&) override;
63    void onDrawRRect(const SkRRect&, const SkPaint&) override;
64    void onDrawPath(const SkPath&, const SkPaint&) override;
65    void onDrawBitmap(const SkBitmap&, SkScalar left, SkScalar top, const SkPaint*) override;
66    void onDrawBitmapRect(const SkBitmap&, const SkRect* src, const SkRect& dst, const SkPaint*,
67                          SrcRectConstraint) override;
68    void onDrawImage(const SkImage*, SkScalar left, SkScalar top, const SkPaint*) override;
69    void onDrawImageRect(const SkImage*, const SkRect* src, const SkRect& dst,
70                         const SkPaint*, SrcRectConstraint) override;
71    void onDrawBitmapNine(const SkBitmap&, const SkIRect& center, const SkRect& dst,
72                          const SkPaint*) override;
73    void onDrawVerticesObject(const SkVertices*, SkBlendMode, const SkPaint&) override;
74
75    void onClipRect(const SkRect&, SkClipOp, ClipEdgeStyle) override;
76    void onClipRRect(const SkRRect&, SkClipOp, ClipEdgeStyle) override;
77    void onClipPath(const SkPath&, SkClipOp, ClipEdgeStyle) override;
78    void onClipRegion(const SkRegion&, SkClipOp) override;
79
80    void onDrawPicture(const SkPicture*, const SkMatrix*, const SkPaint*) override;
81    void onDrawAnnotation(const SkRect&, const char[], SkData*) override;
82
83    class Iter;
84
85private:
86    typedef SkNoDrawCanvas INHERITED;
87};
88
89
90#endif
91