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// Copyright 2007 The Closure Library Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS-IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
/**
* @fileoverview A thick wrapper around ellipses.
* @author robbyw@google.com (Robby Walker)
*/
goog.provide('goog.graphics.ext.Ellipse');
goog.require('goog.graphics.ext.StrokeAndFillElement');
/**
* Wrapper for a graphics ellipse element.
* @param {goog.graphics.ext.Group} group Parent for this element.
* @constructor
* @extends {goog.graphics.ext.StrokeAndFillElement}
*/
goog.graphics.ext.Ellipse = function(group) {
// Initialize with some stock values.
var wrapper = group.getGraphicsImplementation().drawEllipse(1, 1, 2, 2, null,
null, group.getWrapper());
goog.graphics.ext.StrokeAndFillElement.call(this, group, wrapper);
};
goog.inherits(goog.graphics.ext.Ellipse,
goog.graphics.ext.StrokeAndFillElement);
/**
* Redraw the ellipse. Called when the coordinate system is changed.
* @protected
* @override
*/
goog.graphics.ext.Ellipse.prototype.redraw = function() {
goog.graphics.ext.Ellipse.superClass_.redraw.call(this);
// Our position is already transformed in transform_, but because this is an
// ellipse we need to position the center.
var xRadius = this.getWidth() / 2;
var yRadius = this.getHeight() / 2;
var wrapper = this.getWrapper();
wrapper.setCenter(xRadius, yRadius);
wrapper.setRadius(xRadius, yRadius);
};
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