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