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| import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.tree.*;
import java.util.*;
public class treeavecCB {
public static void main(String[] arg){
JFrame arboCheck = new FenetreTree();
arboCheck.setVisible(true);
}
}
class FenetreTree extends JFrame{
FenetreTree(){
super("test");
setSize(800, 600);
JTree arbo;
DefaultMutableTreeNode noeudParent;
noeudParent = new DefaultMutableTreeNode(new String("truc"));
DefaultMutableTreeNode noeudEnfant;
//DefaultTreeCellRenderer dtcr = new DefaultTreeCellRenderer();
RenduComposant rc = new RenduComposant();
EditComposant ec = new EditComposant();
JCheckBox jcb = new JCheckBox();
String[] tableau = {"bou", "ahh", "gna", "niark"};
JScrollPane jsp = new JScrollPane();
for(int i = 0; i < tableau.length; i++){
jcb = new JCheckBox(tableau[i]);
noeudEnfant = new DefaultMutableTreeNode(jcb, true);
noeudParent.add(noeudEnfant);
}
arbo = new JTree(noeudParent);
arbo.setCellRenderer(rc);
arbo.setCellEditor(ec);
arbo.setEditable(true);
getContentPane().add(arbo);
}
}
class RenduComposant 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 JCheckBox){
JCheckBox toto = (JCheckBox)dmtcr.getUserObject();
return toto;
} else {
JLabel toto = new JLabel((String)dmtcr.getUserObject());
return toto;
}
}
}
class EditComposant 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;
JCheckBox tata=(JCheckBox)dmtn.getUserObject();
tata.setEnabled(true);
return tata;
}
} |
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