1/*
2 * Copyright 2014 Google Inc.
3 *
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
10#ifndef SkV8Example_DrawingMethods_DEFINED
11#define SkV8Example_DrawingMethods_DEFINED
12
13#include <v8.h>
14
15class SkCanvas;
16class Global;
17
18// DrawingMethods contains common functionality for both Context, Image2Builder,
19// and DisplayListBuiler.
20class DrawingMethods {
21public:
22    DrawingMethods(Global* global)
23            : fGlobal(global)
24    {}
25    virtual ~DrawingMethods() {}
26
27    // Retrieve the SkCanvas to draw on. May return NULL.
28    virtual SkCanvas* getCanvas() = 0;
29
30    // Add the Javascript attributes and methods that DrawingMethods
31    // implements to the ObjectTemplate.
32    void addAttributesAndMethods(v8::Handle<v8::ObjectTemplate> tmpl);
33
34protected:
35    // Get the pointer out of obj.
36    static DrawingMethods* Unwrap(v8::Handle<v8::Object> obj);
37
38    Global* fGlobal;
39
40private:
41    // JS Attributes
42    static void GetWidth(v8::Local<v8::String> name,
43                         const v8::PropertyCallbackInfo<v8::Value>& info);
44    static void GetHeight(v8::Local<v8::String> name,
45                          const v8::PropertyCallbackInfo<v8::Value>& info);
46
47    // JS Methods
48    static void Save(const v8::FunctionCallbackInfo<v8::Value>& args);
49    static void Restore(const v8::FunctionCallbackInfo<v8::Value>& args);
50    static void Rotate(const v8::FunctionCallbackInfo<v8::Value>& args);
51    static void Translate(const v8::FunctionCallbackInfo<v8::Value>& args);
52    static void ResetTransform(const v8::FunctionCallbackInfo<v8::Value>& args);
53
54    static void DrawPath(const v8::FunctionCallbackInfo<v8::Value>& args);
55};
56
57#endif
58