wideeditortreeexample.java

tame,扩展了好多SWing组件:JTable

/* example ( [swing1.0.3] -  swing1.1beta3 ) */
package tame.examples;

import java.awt.BorderLayout;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTree;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeCellRenderer;

import tame.tree.WideCellEditor;

/**
This example works only each Icon has same width.<br>
editing JTextField has minimum 100. (swing1.1beta3) swing#1007
@author Nobuo Tamemasa
@version 1.0 11/09/98
*/
public class WideEditorTreeExample extends JFrame {
    public WideEditorTreeExample() {
      super("Wide Editor JTree Example");
      String[] strs = { "swing",         // 0
                        "plaf",          // 1
                        "basic",         // 2
                        "metal",         // 3
                        "JTree"};        // 4
      DefaultMutableTreeNode[] nodes = new DefaultMutableTreeNode[strs.length];
      for (int i=0;i<strs.length;i++)
        nodes[i] = new DefaultMutableTreeNode(strs[i]);
      nodes[0].add(nodes[1]);
      nodes[1].add(nodes[2]);
      nodes[1].add(nodes[3]);
      nodes[0].add(nodes[4]);
      JTree tree = new JTree( nodes[0] );
      tree.setEditable(true);

      /* swing1.0.3
      tree.setCellEditor(new BasicTreeCellEditor(
        (BasicTreeCellRenderer)tree.getCellRenderer()) {
          public void doLayout() {
            if (editor != null) {
              Dimension  cSize = getSize();
              Dimension  eSize = editor.getPreferredSize();
              int n = lastPath.getPathCount();
              Rectangle r = new Rectangle();
              r = changeTree.getBounds(r);
              eSize.width = r.width -(editingOffset *n);
              editor.setSize(eSize);
              editor.setLocation(editingOffset, 0);
              editor.setBounds(editingOffset, 0, eSize.width, cSize.height);
              setSize(new Dimension(eSize.width + editingOffset,
                                    cSize.height));
            }
          }
        }
      );
     */

      // swing1.1beta3
      tree.setCellEditor(new WideCellEditor(tree,
        (DefaultTreeCellRenderer)tree.getCellRenderer()));

      JScrollPane sp = new JScrollPane(tree);
      getContentPane().add(sp, BorderLayout.CENTER);
    }

    public static void main(String args[]) {
      WideEditorTreeExample frame = new WideEditorTreeExample();
      frame.addWindowListener(new WindowAdapter() {
        public void windowClosing(WindowEvent e) {System.exit(0);}
      });
      frame.setSize(300, 150);
      frame.setVisible(true);
    }

}