skia2/experimental/SkV8Example/DrawingMethods.h

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/*
* Copyright 2014 Google Inc.
*
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*
*/
#ifndef SkV8Example_DrawingMethods_DEFINED
#define SkV8Example_DrawingMethods_DEFINED
#include <v8.h>
class SkCanvas;
class Global;
// DrawingMethods contains common functionality for both Context, Image2Builder,
// and DisplayListBuiler.
class DrawingMethods {
public:
DrawingMethods(Global* global)
: fGlobal(global)
{}
virtual ~DrawingMethods() {}
// Retrieve the SkCanvas to draw on. May return NULL.
virtual SkCanvas* getCanvas() = 0;
// Add the Javascript attributes and methods that DrawingMethods
// implements to the ObjectTemplate.
void addAttributesAndMethods(v8::Handle<v8::ObjectTemplate> tmpl);
protected:
// Get the pointer out of obj.
static DrawingMethods* Unwrap(v8::Handle<v8::Object> obj);
Global* fGlobal;
private:
// JS Attributes
static void GetWidth(v8::Local<v8::String> name,
const v8::PropertyCallbackInfo<v8::Value>& info);
static void GetHeight(v8::Local<v8::String> name,
const v8::PropertyCallbackInfo<v8::Value>& info);
// JS Methods
static void Save(const v8::FunctionCallbackInfo<v8::Value>& args);
static void Restore(const v8::FunctionCallbackInfo<v8::Value>& args);
static void Rotate(const v8::FunctionCallbackInfo<v8::Value>& args);
static void Translate(const v8::FunctionCallbackInfo<v8::Value>& args);
static void ResetTransform(const v8::FunctionCallbackInfo<v8::Value>& args);
static void DrawPath(const v8::FunctionCallbackInfo<v8::Value>& args);
};
#endif