SkLuaCanvas.h revision 03fc3b4f67a115e4a7945d173856a6c80b09311e 
1/*
2 * Copyright 2013 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8#ifndef SkLuaCanvas_DEFINED
9#define SkLuaCanvas_DEFINED
10
11#include "SkCanvas.h"
12#include "SkString.h"
13
14struct lua_State;
15
16class SkLuaCanvas : public SkCanvas {
17public:
18    void pushThis();
19
20    SkLuaCanvas(int width, int height, lua_State*, const char function[]);
21    virtual ~SkLuaCanvas();
22
23    virtual int save(SaveFlags flags) SK_OVERRIDE;
24    virtual int saveLayer(const SkRect* bounds, const SkPaint* paint,
25                          SaveFlags flags) SK_OVERRIDE;
26    virtual void restore() SK_OVERRIDE;
27
28    virtual bool translate(SkScalar dx, SkScalar dy) SK_OVERRIDE;
29    virtual bool scale(SkScalar sx, SkScalar sy) SK_OVERRIDE;
30    virtual bool rotate(SkScalar degrees) SK_OVERRIDE;
31    virtual bool skew(SkScalar sx, SkScalar sy) SK_OVERRIDE;
32    virtual bool concat(const SkMatrix& matrix) SK_OVERRIDE;
33    virtual void setMatrix(const SkMatrix& matrix) SK_OVERRIDE;
34
35    virtual bool clipRect(const SkRect&, SkRegion::Op, bool) SK_OVERRIDE;
36    virtual bool clipRRect(const SkRRect&, SkRegion::Op, bool) SK_OVERRIDE;
37    virtual bool clipPath(const SkPath&, SkRegion::Op, bool) SK_OVERRIDE;
38    virtual bool clipRegion(const SkRegion& deviceRgn,
39                            SkRegion::Op) SK_OVERRIDE;
40
41    virtual void drawPaint(const SkPaint& paint) SK_OVERRIDE;
42    virtual void drawPoints(PointMode mode, size_t count, const SkPoint pts[],
43                            const SkPaint& paint) SK_OVERRIDE;
44    virtual void drawOval(const SkRect&, const SkPaint& paint) SK_OVERRIDE;
45    virtual void drawRect(const SkRect&, const SkPaint& paint) SK_OVERRIDE;
46    virtual void drawRRect(const SkRRect&, const SkPaint& paint) SK_OVERRIDE;
47    virtual void drawPath(const SkPath& path, const SkPaint& paint) SK_OVERRIDE;
48    virtual void drawBitmap(const SkBitmap& bitmap, SkScalar left, SkScalar top,
49                            const SkPaint* paint) SK_OVERRIDE;
50    virtual void drawBitmapRectToRect(const SkBitmap& bitmap, const SkRect* src,
51                                      const SkRect& dst, const SkPaint* paint,
52                                      DrawBitmapRectFlags flags) SK_OVERRIDE;
53    virtual void drawBitmapMatrix(const SkBitmap& bitmap, const SkMatrix& m,
54                                  const SkPaint* paint) SK_OVERRIDE;
55    virtual void drawSprite(const SkBitmap& bitmap, int left, int top,
56                            const SkPaint* paint) SK_OVERRIDE;
57    virtual void drawText(const void* text, size_t byteLength, SkScalar x,
58                          SkScalar y, const SkPaint& paint) SK_OVERRIDE;
59    virtual void drawPosText(const void* text, size_t byteLength,
60                             const SkPoint pos[], const SkPaint& paint) SK_OVERRIDE;
61    virtual void drawPosTextH(const void* text, size_t byteLength,
62                              const SkScalar xpos[], SkScalar constY,
63                              const SkPaint& paint) SK_OVERRIDE;
64    virtual void drawTextOnPath(const void* text, size_t byteLength,
65                                const SkPath& path, const SkMatrix* matrix,
66                                const SkPaint& paint) 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& paint) SK_OVERRIDE;
73    virtual void drawData(const void* data, size_t length) SK_OVERRIDE;
74
75protected:
76    virtual void onDrawDRRect(const SkRRect&, const SkRRect&, const SkPaint&) SK_OVERRIDE;
77
78private:
79    lua_State*  fL;
80    SkString    fFunc;
81
82    void sendverb(const char verb[]);
83
84    typedef SkCanvas INHERITED;
85};
86
87#endif
88