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1   // Copyright 2002, FreeHEP.
2   package org.freehep.graphicsio.emf.gdi;
3   
4   import java.awt.Rectangle;
5   import java.awt.geom.Ellipse2D;
6   import java.io.IOException;
7   
8   import org.freehep.graphicsio.emf.EMFInputStream;
9   import org.freehep.graphicsio.emf.EMFOutputStream;
10  import org.freehep.graphicsio.emf.EMFTag;
11  import org.freehep.graphicsio.emf.EMFRenderer;
12  
13  /**
14   * Ellipse TAG.
15   * 
16   * @author Mark Donszelmann
17   * @version $Id: Ellipse.java 10367 2007-01-22 19:26:48Z duns $
18   */
19  public class Ellipse extends EMFTag {
20      private Rectangle bounds;
21  
22      public Ellipse(Rectangle bounds) {
23          this();
24          this.bounds = bounds;
25      }
26  
27      public Ellipse() {
28          super(42, 1);
29      }
30  
31      public EMFTag read(int tagID, EMFInputStream emf, int len)
32              throws IOException {
33  
34          return new Ellipse(emf.readRECTL());
35      }
36  
37      public void write(int tagID, EMFOutputStream emf) throws IOException {
38          emf.writeRECTL(bounds);
39      }
40  
41      public String toString() {
42          return super.toString() + "\n  bounds: " + bounds;
43      }
44  
45      /**
46       * displays the tag using the renderer
47       *
48       * @param renderer EMFRenderer storing the drawing session data
49       */
50      public void render(EMFRenderer renderer) {
51          // The Ellipse function draws an ellipse. The center of the ellipse
52          // is the center of the specified bounding rectangle.
53          // The ellipse is outlined by using the current pen and is filled by
54          // using the current brush.
55          // The current position is neither used nor updated by Ellipse.
56          renderer.fillAndDrawOrAppend(new Ellipse2D.Double(
57              bounds.getX(),
58              bounds.getY(),
59              bounds.getWidth(),
60              bounds.getHeight()));
61      }
62  }