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import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
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 TreeClass {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setText("Tree Example");
final Text text = new Text(shell, SWT.BORDER);
text.setBounds(0, 270, 290, 25);
final Tree tree = new Tree(shell, SWT.CHECK | SWT.BORDER | SWT.V_SCROLL
| SWT.H_SCROLL);
tree.setSize(290, 260);
shell.setSize(300, 330);
for (int loopIndex0 = 0; loopIndex0 < 10; loopIndex0++) {
TreeItem treeItem0 = new TreeItem(tree, 0);
treeItem0.setText("Level 0 Item " + loopIndex0);
for (int loopIndex1 = 0; loopIndex1 < 10; loopIndex1++) {
TreeItem treeItem1 = new TreeItem(treeItem0, 0);
treeItem1.setText("Level 1 Item " + loopIndex1);
for (int loopIndex2 = 0; loopIndex2 < 10; loopIndex2++) {
TreeItem treeItem2 = new TreeItem(treeItem1, 0);
treeItem2.setText("Level 2 Item " + loopIndex2);
}
}
}
tree.addListener(SWT.Selection, new Listener() {
public void handleEvent(Event event) {
if (event.detail == SWT.CHECK) {
text.setText(event.item + " was checked.");
} else {
text.setText(event.item + " was selected");
}
}
});
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}
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