swt中如何实现在TreeItem上右击添加子节点
下面一段可运行的tree,请问高手们,在swt中如何实现在TreeItem上右击可以添加子节点?
public class TreeDemo01 {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new FillLayout());
final Tree tree = new Tree(shell, SWT.BORDER);
for (int i = 0; i < 4; i++) {
TreeItem iItem = new TreeItem(tree, 0);
iItem.setText("TreeItem (0) -" + i);
for (int j = 0; j < 4; j++) {
TreeItem jItem = new TreeItem(iItem, 0);
jItem.setText("TreeItem (1) -" + j);
for (int k = 0; k < 4; k++) {
TreeItem kItem = new TreeItem(jItem, 0);
kItem.setText("TreeItem (2) -" + k);
for (int l = 0; l < 4; l++) {
TreeItem lItem = new TreeItem(kItem, 0);
lItem.setText("TreeItem (3) -" + l);
}
}
}
}
shell.setSize(200, 200);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}