Java by API/org.eclipse.swt.custom/TreeEditor

new TreeEditor(Tree tree)

   <source lang="java">

import org.eclipse.swt.SWT; import org.eclipse.swt.custom.TreeEditor; import org.eclipse.swt.events.FocusAdapter; import org.eclipse.swt.events.FocusEvent; import org.eclipse.swt.events.KeyAdapter; import org.eclipse.swt.events.KeyEvent; import org.eclipse.swt.layout.FillLayout; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.Text; import org.eclipse.swt.widgets.Tree; import org.eclipse.swt.widgets.TreeItem; public class MainClass {

 public static void main(String[] a) {
   
   final Display d = new Display();
   final Shell shell = new Shell(d);
   shell.setSize(250, 200);
   
   
   shell.setLayout(new FillLayout());
   final Tree tree = new Tree(shell, SWT.SINGLE);
   for (int i = 0; i < 3; i++) {
     TreeItem iItem = new TreeItem(tree, SWT.NONE);
     iItem.setText("Edit me by pressing F2 " + (i + 1));
     iItem.setExpanded(true);
   }
   final TreeEditor editor = new TreeEditor(tree);
   editor.horizontalAlignment = SWT.LEFT;
   editor.grabHorizontal = true;
   tree.addKeyListener(new KeyAdapter() {
     public void keyPressed(KeyEvent event) {
       if (event.keyCode == SWT.F2 && tree.getSelectionCount() == 1) {
         final TreeItem item = tree.getSelection()[0];
         final Text text = new Text(tree, SWT.NONE);
         text.setText(item.getText());
         text.setFocus();
         text.addFocusListener(new FocusAdapter() {
           public void focusLost(FocusEvent event) {
             item.setText(text.getText());
             text.dispose();
           }
         });
         editor.setEditor(text, item);
       }
     }
   });
   
   shell.open();
   while (!shell.isDisposed()) {
     if (!d.readAndDispatch())
       d.sleep();
   }
   d.dispose();
 }

}

      </source>
   
  
 
  

TreeEditor: setEditor(Control control, TreeItem item)

   <source lang="java">

import org.eclipse.swt.SWT; import org.eclipse.swt.custom.TreeEditor; import org.eclipse.swt.events.FocusAdapter; import org.eclipse.swt.events.FocusEvent; import org.eclipse.swt.events.KeyAdapter; import org.eclipse.swt.events.KeyEvent; import org.eclipse.swt.layout.FillLayout; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.Text; import org.eclipse.swt.widgets.Tree; import org.eclipse.swt.widgets.TreeItem; public class MainClass {

 public static void main(String[] a) {
   
   final Display d = new Display();
   final Shell shell = new Shell(d);
   shell.setSize(250, 200);
   
   
   shell.setLayout(new FillLayout());
   final Tree tree = new Tree(shell, SWT.SINGLE);
   for (int i = 0; i < 3; i++) {
     TreeItem iItem = new TreeItem(tree, SWT.NONE);
     iItem.setText("Edit me by pressing F2 " + (i + 1));
     iItem.setExpanded(true);
   }
   final TreeEditor editor = new TreeEditor(tree);
   editor.horizontalAlignment = SWT.LEFT;
   editor.grabHorizontal = true;
   tree.addKeyListener(new KeyAdapter() {
     public void keyPressed(KeyEvent event) {
       if (event.keyCode == SWT.F2 && tree.getSelectionCount() == 1) {
         final TreeItem item = tree.getSelection()[0];
         final Text text = new Text(tree, SWT.NONE);
         text.setText(item.getText());
         text.setFocus();
         text.addFocusListener(new FocusAdapter() {
           public void focusLost(FocusEvent event) {
             item.setText(text.getText());
             text.dispose();
           }
         });
         editor.setEditor(text, item);
       }
     }
   });
   
   shell.open();
   while (!shell.isDisposed()) {
     if (!d.readAndDispatch())
       d.sleep();
   }
   d.dispose();
 }

}

      </source>