swing/checkboxtree/CheckBoxNodeRenderer.java

package skrueger.swing.checkboxtree;

import java.awt.Color;
import java.awt.Component;
import java.awt.Font;

import javax.swing.BorderFactory;
import javax.swing.JCheckBox;
import javax.swing.JTree;
import javax.swing.UIManager;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeCellRenderer;
import javax.swing.tree.TreeCellRenderer;

public class CheckBoxNodeRenderer implements TreeCellRenderer {
  protected JCheckBox leafRenderer = new JCheckBox();

  protected DefaultTreeCellRenderer nonLeafRenderer = new DefaultTreeCellRenderer();

  Color selectionBorderColor;

protected Color selectionForeground;

protected Color selectionBackground;

protected Color textForeground;

protected Color textBackground;

  public JCheckBox getLeafRenderer() {
    return leafRenderer;
  }

  public CheckBoxNodeRenderer() {
    Font fontValue;
    fontValue = UIManager.getFont("Tree.font");
    if (fontValue != null) {
      leafRenderer.setFont(fontValue);
    }
    Boolean booleanValue = (Boolean) UIManager
        .get("Tree.drawsFocusBorderAroundIcon");
    leafRenderer.setFocusPainted((booleanValue != null)
        && (booleanValue.booleanValue()));
    
    leafRenderer.setBorder(BorderFactory.createEmptyBorder(1,1,1,1));

    selectionBorderColor = UIManager.getColor("Tree.selectionBorderColor");
    selectionForeground = UIManager.getColor("Tree.selectionForeground");
    selectionBackground = UIManager.getColor("Tree.selectionBackground");
    textForeground = UIManager.getColor("Tree.textForeground");
    textBackground = UIManager.getColor("Tree.textBackground");
  }

  public Component getTreeCellRendererComponent(JTree tree, Object value,
      boolean selected, boolean expanded, boolean leaf, int row,
      boolean hasFocus) {

    Component returnValue;
    if (leaf) {

      String stringValue = tree.convertValueToText(value, selected,
          expanded, leaf, row, false);
      leafRenderer.setText(stringValue);
      leafRenderer.setSelected(false);

      leafRenderer.setEnabled(tree.isEnabled());

      if (selected) {
        leafRenderer.setForeground(selectionForeground);
        leafRenderer.setBackground(selectionBackground);
      } else {
        leafRenderer.setForeground(textForeground);
        leafRenderer.setBackground(textBackground);
      }

      if ((value != null) && (value instanceof DefaultMutableTreeNode)) {
        Object userObject = ((DefaultMutableTreeNode) value)
            .getUserObject();
        if (userObject instanceof CheckBoxNode) {
          CheckBoxNode node = (CheckBoxNode) userObject;
          leafRenderer.setText(node.getText());
          leafRenderer.setSelected(node.isSelected());
        }
        
      }
      returnValue = leafRenderer;
    } else {
      returnValue = nonLeafRenderer.getTreeCellRendererComponent(tree,
          value, selected, expanded, leaf, row, hasFocus);
    }
    return returnValue;
  }
}
1	alfonx	714	package skrueger.swing.checkboxtree;
2
3			import java.awt.Color;
4			import java.awt.Component;
5			import java.awt.Font;
6
7			import javax.swing.BorderFactory;
8			import javax.swing.JCheckBox;
9			import javax.swing.JTree;
10			import javax.swing.UIManager;
11			import javax.swing.tree.DefaultMutableTreeNode;
12			import javax.swing.tree.DefaultTreeCellRenderer;
13			import javax.swing.tree.TreeCellRenderer;
14
15			public class CheckBoxNodeRenderer implements TreeCellRenderer {
16			protected JCheckBox leafRenderer = new JCheckBox();
17
18			protected DefaultTreeCellRenderer nonLeafRenderer = new DefaultTreeCellRenderer();
19
20			Color selectionBorderColor;
21
22			protected Color selectionForeground;
23
24			protected Color selectionBackground;
25
26			protected Color textForeground;
27
28			protected Color textBackground;
29
30			public JCheckBox getLeafRenderer() {
31			return leafRenderer;
32			}
33
34			public CheckBoxNodeRenderer() {
35			Font fontValue;
36			fontValue = UIManager.getFont("Tree.font");
37			if (fontValue != null) {
38			leafRenderer.setFont(fontValue);
39			}
40			Boolean booleanValue = (Boolean) UIManager
41			.get("Tree.drawsFocusBorderAroundIcon");
42			leafRenderer.setFocusPainted((booleanValue != null)
43			&& (booleanValue.booleanValue()));
44
45			leafRenderer.setBorder(BorderFactory.createEmptyBorder(1,1,1,1));
46
47			selectionBorderColor = UIManager.getColor("Tree.selectionBorderColor");
48			selectionForeground = UIManager.getColor("Tree.selectionForeground");
49			selectionBackground = UIManager.getColor("Tree.selectionBackground");
50			textForeground = UIManager.getColor("Tree.textForeground");
51			textBackground = UIManager.getColor("Tree.textBackground");
52			}
53
54			public Component getTreeCellRendererComponent(JTree tree, Object value,
55			boolean selected, boolean expanded, boolean leaf, int row,
56			boolean hasFocus) {
57
58			Component returnValue;
59			if (leaf) {
60
61			String stringValue = tree.convertValueToText(value, selected,
62			expanded, leaf, row, false);
63			leafRenderer.setText(stringValue);
64			leafRenderer.setSelected(false);
65
66			leafRenderer.setEnabled(tree.isEnabled());
67
68			if (selected) {
69			leafRenderer.setForeground(selectionForeground);
70			leafRenderer.setBackground(selectionBackground);
71			} else {
72			leafRenderer.setForeground(textForeground);
73			leafRenderer.setBackground(textBackground);
74			}
75
76			if ((value != null) && (value instanceof DefaultMutableTreeNode)) {
77			Object userObject = ((DefaultMutableTreeNode) value)
78			.getUserObject();
79			if (userObject instanceof CheckBoxNode) {
80			CheckBoxNode node = (CheckBoxNode) userObject;
81			leafRenderer.setText(node.getText());
82			leafRenderer.setSelected(node.isSelected());
83			}
84
85			}
86			returnValue = leafRenderer;
87			} else {
88			returnValue = nonLeafRenderer.getTreeCellRendererComponent(tree,
89			value, selected, expanded, leaf, row, hasFocus);
90			}
91			return returnValue;
92			}
93			}
Name	Value
svn:eol-style	native
svn:keywords	Id URL
svn:mime-type	text/plain