foam-framework/js/foam/graphics/Shadow.js

MVC metaprogramming framework

/**
 * @license
 * Copyright 2014 Google Inc. 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.
 */

CLASS({
  package: 'foam.graphics',
  name: 'Shadow',
  methods: {
    paint: function() {
      var c = this.canvas;
      var oldAlpha = this.alpha;
      var oldColor = this.color;

      c.save();
      c.translate(4, 4);
      this.alpha = 0.2;
      this.color = 'black';
      this.SUPER();
      c.restore();

      this.alpha = oldAlpha;
      this.color = oldColor;

      this.SUPER();
    }
  }
});