1   /****************************************************************************
2    **
3    ** This file is part of yFiles-2.9. 
4    ** 
5    ** yWorks proprietary/confidential. Use is subject to license terms.
6    **
7    ** Redistribution of this file or of an unauthorized byte-code version
8    ** of this file is strictly forbidden.
9    **
10   ** Copyright (c) 2000-2011 by yWorks GmbH, Vor dem Kreuzberg 28, 
11   ** 72070 Tuebingen, Germany. All rights reserved.
12   **
13   ***************************************************************************/
14  package demo.view.flowchart.painters;
15  
16  import y.view.NodeRealizer;
17  
18  import java.awt.geom.Ellipse2D;
19  
20  /**
21  * This class is an implementation of {@link y.view.GenericNodeRealizer.Painter} that draws the "start2" symbol of flowchart diagrams.
22   **/
23  public class FlowchartStart2Painter extends AbstractFlowchartPainter{
24    public FlowchartStart2Painter() {
25      super();
26      outline = new Ellipse2D.Double();
27    }
28  
29    protected void updateOutline(NodeRealizer context) {
30      Ellipse2D shape = (Ellipse2D) getOutline();
31      
32      double height = context.getHeight();
33      double width = context.getWidth();
34      double x = context.getX();
35      double y = context.getY();
36      double diameter = Math.min(height, width);
37      double borderDistanceX = Math.max((width - diameter)/2, 0);
38      double borderDistanceY = Math.max((height - diameter)/2, 0);
39      shape.setFrame(x + borderDistanceX, y + borderDistanceY, diameter, diameter);
40  
41    }
42  }
43