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 15 class SkCanvas; 16 class Global; 17 18 // DrawingMethods contains common functionality for both Context, Image2Builder, 19 // and DisplayListBuiler. 20 class DrawingMethods { 21 public: 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 34 protected: 35 // Get the pointer out of obj. 36 static DrawingMethods* Unwrap(v8::Handle<v8::Object> obj); 37 38 Global* fGlobal; 39 40 private: 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
