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1   /*
2    * Copyright (c) 2005, the JUNG Project and the Regents of the University of
3    * California All rights reserved.
4    *
5    * This software is open-source under the BSD license; see either "license.txt"
6    * or http://jung.sourceforge.net/license.txt for a description.
7    *
8    * Created on Apr 14, 2005
9    */
10  
11  package edu.uci.ics.jung.visualization.renderers;
12  
13  import java.awt.Component;
14  import java.awt.Font;
15  
16  import javax.swing.JComponent;
17  
18  /**
19   * @author Tom Nelson 
20   *
21   * 
22   */
23  public interface VertexLabelRenderer {
24      /**
25       *  Returns the component used for drawing the label.  This method is
26       *  used to configure the renderer appropriately before drawing.
27       *
28       * @param	vv  the <code>JComponent</code> that is asking the 
29       *				renderer to draw; can be <code>null</code>
30       * @param	value		the value of the cell to be rendered.  It is
31       *				up to the specific renderer to interpret
32       *				and draw the value.  For example, if
33       *				<code>value</code>
34       *				is the string "true", it could be rendered as a
35       *				string or it could be rendered as a check
36       *				box that is checked.  <code>null</code> is a
37       *				valid value
38       * @param	vertex  the vertex for the label being drawn.
39       */
40      <T> Component getVertexLabelRendererComponent(JComponent vv, Object value,
41  					   Font font, boolean isSelected, T vertex);
42  }