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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 TreeEditorSampleDemo {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setText("Text Tree Editor");
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("Item " + (i + 1));
for (int j = 0; j < 3; j++) {
TreeItem jItem = new TreeItem(iItem, SWT.NONE);
jItem.setText("Sub Item " + (j + 1));
for (int k = 0; k < 3; k++) {
new TreeItem(jItem, SWT.NONE).setText("Sub Sub Item " + (k + 1));
}
jItem.setExpanded(true);
}
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.selectAll();
text.setFocus();
text.addFocusListener(new FocusAdapter() {
public void focusLost(FocusEvent event) {
item.setText(text.getText());
text.dispose();
}
});
text.addKeyListener(new KeyAdapter() {
public void keyPressed(KeyEvent event) {
switch (event.keyCode) {
case SWT.CR:
item.setText(text.getText());
case SWT.ESC:
text.dispose();
break;
}
}
});
editor.setEditor(text, item);
}
}
});
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
display.sleep();
}
}
display.dispose();
}
}
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