/*
* Copyright (c) 2014 Gwennael Buchet
*
* License/Terms of Use
*
* Permission is hereby granted, free of charge and for the term of intellectual property rights on the Software, to any
* person obtaining a copy of this software and associated documentation files (the "Software"), to use, copy, modify
* and propagate free of charge, anywhere in the world, all or part of the Software subject to the following mandatory conditions:
*
* • The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
*
* Any failure to comply with the above shall automatically terminate the license and be construed as a breach of these
* Terms of Use causing significant harm to Gwennael Buchet.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
* WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON INFRINGEMENT. IN NO EVENT SHALL THE AUTHORS
* OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* Except as contained in this notice, the name of Gwennael Buchet shall not be used in advertising or otherwise to promote
* the use or other dealings in this Software without prior written authorization from Gwennael Buchet.
*
* These Terms of Use are subject to French law.
*/
/**
* A CGSGNodeEllipse represent a basic ellipse.
* By default, the pickNodeMethod used to detect the node under the mice is CGSGPickNodeMethod.GHOST.
* If you don't need precision on detection on your ellipses, just change the property to pickNodeMethod.REGION.
*
* @class CGSGNodeEllipse
* @module Node
* @extends CGSGNode
* @constructor
* @param {Number} x Relative position on X
* @param {Number} y Relative position on Y
* @param {Number} width Relative dimension
* @param {Number} height Relative Dimension
* @type {CGSGNodeEllipse}
* @author Gwennael Buchet (gwennael.buchet@gmail.com)
*/
var CGSGNodeEllipse = CGSGNode.extend(
{
initialize : function(x, y, width, height) {
this._super(x, y);
this.resizeTo(width, height);
this._f = 1.16666666;
this._mf = 1 - this._f;
this._w = 0;
this._mw = 0;
this._computeWmW();
/**
* @property classType
* @readonly
* @type {String}
*/
this.classType = "CGSGNodeEllipse";
this.pickNodeMethod = CGSGPickNodeMethod.GHOST;
},
/**
* Custom rendering
* @method render
* @protected
* @param c {CanvasRenderingContext2D} the context into render the node
* */
render : function(c) {
var centerX = this.dimension.width / 2;
c.beginPath();
c.moveTo(centerX, 0);
c.bezierCurveTo(
this._w, 0,
this._w, this.dimension.height,
centerX, this.dimension.height);
c.bezierCurveTo(
this._mw, this.dimension.height,
this._mw, 0,
centerX, 0);
c.fill();
if (this.lineWidth > 0) {
c.stroke();
}
c.closePath();
},
_computeWmW : function() {
this._w = this.dimension.width * this._f;
this._mw = this.dimension.width * this._mf;
},
/**
* Replace current dimension by these new ones and compute new Points
* @method resizeTo
* @param {Number} w
* @param {Number} h
* */
resizeTo : function(w, h) {
this._super(w, h);
this._computeWmW();
},
/**
* Multiply current dimension by these new ones
* @method resizeTBy
* @param wf {Number} width Factor
* @param hf {Number} height Factor
* */
resizeBy : function(wf, hf) {
this._super(wf, hf);
this._computeWmW();
},
/**
* Increase/decrease current dimension with adding values
* @method resizeWith
* @param w {Number} width
* @param h {Number} height
* */
resizeWith : function(w, h) {
this._super(w, h);
this._computeWmW();
},
/**
* @method copy
* @return {CGSGNodeEllipse} a copy of this node
*/
copy : function() {
var node = new CGSGNodeEllipse(this.position.x, this.position.y, this.dimension.width,
this.dimension.height);
//call the super method
return this._super(node);
}
}
);