Fill a menu dynamically (when menu shown)
/*
* Menu example snippet: fill a menu dynamically (when menu shown)
*
* For a list of all SWT example snippets see
* http://dev.eclipse.org/viewcvs/index.cgi/%7Echeckout%7E/platform-swt-home/dev.html#snippets
*/
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.Menu;
import org.eclipse.swt.widgets.MenuItem;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Tree;
import org.eclipse.swt.widgets.TreeItem;
public class Snippet97 {
public static void main(String[] args) {
final Display display = new Display();
Shell shell = new Shell(display);
final Tree tree = new Tree(shell, SWT.BORDER | SWT.MULTI);
final Menu menu = new Menu(shell, SWT.POP_UP);
tree.setMenu(menu);
for (int i = 0; i < 12; i++) {
TreeItem item = new TreeItem(tree, SWT.NONE);
item.setText("Item " + i);
}
menu.addListener(SWT.Show, new Listener() {
public void handleEvent(Event event) {
MenuItem[] menuItems = menu.getItems();
for (int i = 0; i < menuItems.length; i++) {
menuItems[i].dispose();
}
TreeItem[] treeItems = tree.getSelection();
for (int i = 0; i < treeItems.length; i++) {
MenuItem menuItem = new MenuItem(menu, SWT.PUSH);
menuItem.setText(treeItems[i].getText());
}
}
});
tree.setSize(200, 200);
shell.setSize(300, 300);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}
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