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import java.awt.*;
import java.awt.event.*;
import java.util.EventObject;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeModel;
import javax.swing.tree.TreeCellEditor;
import javax.swing.tree.TreeCellRenderer;
import java.awt.BorderLayout;
import javax.swing.JButton;
class Test extends JFrame {
// Instance attributes used in this example
private JPanel topPanel;
private JTree tree;
private JPanel panelButton = null;
private JButton enable = null;
private JButton refresh;
private JCompCheckBox jcompCheckBox1 = new JCompCheckBox();
private JCompCheckBox jcompCheckBox2 = new JCompCheckBox();
private JCompCheckBox jcompCheckBox3 = new JCompCheckBox();
private JCompCheckBox jcompCheckBox4 = new JCompCheckBox();
// Constructor of main frame
public Test()
{
initialize();
}
/**
* This method initializes this
*
*/
private void initialize() {
// Set the frame characteristics
setTitle( "My Tree Application" );
setSize( 300, 200);
//setBackground( Color.gray );
// Create a panel to hold all other components
topPanel = new JPanel();
topPanel.setLayout( new BorderLayout() );
setContentPane(topPanel);
//Create Jtree
DefaultMutableTreeNode racine = new DefaultMutableTreeNode("Racine");
DefaultMutableTreeNode rep1 = new DefaultMutableTreeNode(jcompCheckBox1);
DefaultMutableTreeNode rep2 = new DefaultMutableTreeNode(jcompCheckBox2);
DefaultMutableTreeNode rep3 = new DefaultMutableTreeNode(jcompCheckBox3);
DefaultMutableTreeNode rep4 = new DefaultMutableTreeNode(jcompCheckBox4);
racine.add(rep1);
racine.add(rep2);
racine.add(rep3);
racine.add(rep4);
DefaultTreeModel treeModel = new DefaultTreeModel(racine);
tree = new JTree(treeModel);
tree.setShowsRootHandles( true);
tree.setEditable(true);
((DefaultTreeModel)tree.getModel()).nodeChanged(rep3);
// Add a cell editor to the tree
tree.setCellEditor(new EditCellPanel() );
//Add a cell renderer to the tree
tree.setCellRenderer(new CellPanelRender());
//Add Elements to panel
topPanel.add(tree, BorderLayout.NORTH);
topPanel.add(getPanelButton(), BorderLayout.SOUTH);
}
//Panel containing enable/disable and refresh JButtons
private JPanel getPanelButton() {
if (panelButton == null) {
panelButton = new JPanel();
panelButton.setLayout( new BorderLayout() );
panelButton.add(getEnable(), BorderLayout.NORTH);
panelButton.add(getRefresh(), BorderLayout.SOUTH);
}
return panelButton;
}
//Enable/Disable JButton
private JButton getEnable() {
if (enable == null) {
enable = new JButton();
enable.setText("Disable");
//Add Action listener that disable and enable CompCheckBox
enable.addActionListener ( new java.awt.event.ActionListener(){
public void actionPerformed(java.awt.event.ActionEvent e){
if (enable.getText().equals("Disable")){
jcompCheckBox1.getM_checkBox().setEnabled(false);
jcompCheckBox2.getM_checkBox().setEnabled(false);
jcompCheckBox3.getM_checkBox().setEnabled(false);
jcompCheckBox4.getM_checkBox().setEnabled(false);
enable.setText("Enable");
}else{
jcompCheckBox1.getM_checkBox().setEnabled(true);
jcompCheckBox2.getM_checkBox().setEnabled(true);
jcompCheckBox3.getM_checkBox().setEnabled(true);
jcompCheckBox4.getM_checkBox().setEnabled(true);
enable.setText("Disable");
}
}
});
}
return enable;
}
//Refresh JButton
private JButton getRefresh() {
if (refresh == null) {
refresh = new JButton();
refresh.setText("Refresh");
//Add a listener to refresh the JTree
refresh.addActionListener ( new java.awt.event.ActionListener(){
public void actionPerformed(java.awt.event.ActionEvent e){
tree.updateUI();
}
});
}
return refresh;
}
// Main entry point for this example
public static void main( String args[] )
{
// Create an instance of the test application
Test mainFrame = new Test();
mainFrame.setVisible( true );
}
}
//The Cell Renderer for the JTree
//allow to put a JCompCheckBox instead of a Label
class CellPanelRender implements TreeCellRenderer{
public Component getTreeCellRendererComponent(JTree tree, Object obj, boolean selected, boolean expanded, boolean leaf, int row, boolean hasFocus){
DefaultMutableTreeNode dmtcr = (DefaultMutableTreeNode)obj;
if(dmtcr.getUserObject() instanceof JCompCheckBox){
JCompCheckBox compCheckBox = (JCompCheckBox)dmtcr.getUserObject();
return compCheckBox;
} else {
JLabel compCheckBox = new JLabel((String)dmtcr.getUserObject());
return compCheckBox;
}
}
}
//the Cell Eitor for the JTree
//allox to edit node of a JTree
class EditCellPanel implements TreeCellEditor{
public void addCellEditorListener(CellEditorListener l){
}
public void cancelCellEditing() {
}
public Object getCellEditorValue(){
return this;
}
public boolean isCellEditable(EventObject evt){
if(evt instanceof MouseEvent){
MouseEvent mevt = (MouseEvent) evt;
if (mevt.getClickCount() == 1){
return true;
}
}
return false;
}
public void removeCellEditorListener(CellEditorListener l){
}
public boolean shouldSelectCell(EventObject anEvent){
return true;
}
public boolean stopCellEditing(){
return false;
}
public Component getTreeCellEditorComponent(JTree tree, Object obj, boolean isSelected, boolean expanded, boolean leaf, int row){
DefaultMutableTreeNode dmtn = (DefaultMutableTreeNode)obj;
JCompCheckBox compCheckBox =(JCompCheckBox)dmtn.getUserObject();
compCheckBox.setEnabled(true);
return compCheckBox;
}
}
//class to create a new JCompCheckBox that contains 3 Label and a checkBox
class JCompCheckBox extends JPanel
{
private JLabel m_buildStatus;
private JLabel m_GDAStatus;
private JLabel m_PDAStatus;
private JCheckBox m_checkBox;
/**
* This is the constructor for compCheckBox
*/
public JCompCheckBox()
{
setOpaque( false );
setAlignmentX(0);
setLayout(new BoxLayout(this, BoxLayout.X_AXIS));
m_buildStatus = new JLabel("X");
add(m_buildStatus);
m_GDAStatus = new JLabel("X");
add(m_GDAStatus);
m_PDAStatus = new JLabel("X");
add(m_PDAStatus);
m_checkBox = new JCheckBox("CheckBox");
getM_checkBox().setOpaque( false );
add(m_checkBox);
}
public void addItemListener ( ItemListener listener )
{
getM_checkBox().addItemListener ( listener );
}
public void addActionListener ( ActionListener listener )
{
getM_checkBox().addActionListener ( listener );
}
/**
* Returns the checkBox
*/
JCheckBox getM_checkBox()
{
return m_checkBox;
}
/**
* Returns the m_buildStatus
*/
JLabel getM_buildStatus()
{
return m_buildStatus;
}
/**
* Returns the m_GDAStatus
*/
JLabel getM_GDAStatus()
{
return m_GDAStatus;
}
/**
* Returns the m_PDAStatus
*/
JLabel getM_PDAStatus()
{
return m_PDAStatus;
}
} |
Problème de refresh sur un Jtree contenant des JPanel
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