如何在SWT树中的树状图中添加右键弹出菜单.每个treeitem都应该启用右键单击
解决方法
只需使用tree.setMenu(菜单).
你去了
public static void main(String[] args)
{
display display = display.getDefault();
final Shell shell = new Shell(display);
shell.setText("StackOverflow");
shell.setLayout(new FillLayout());
final Tree tree = new Tree(shell,SWT.NONE);
for(int i = 0; i < 10; i++)
{
TreeItem item = new TreeItem(tree,SWT.NONE);
item.setText("Parent " + i);
for(int j = 0; j < 3; j++)
{
TreeItem child = new TreeItem(item,SWT.NONE);
child.setText("Child " + i + " " + j);
}
}
final Menu menu = new Menu(tree);
tree.setMenu(menu);
menu.addMenuListener(new MenuAdapter()
{
public void menuShown(MenuEvent e)
{
MenuItem[] items = menu.getItems();
for (int i = 0; i < items.length; i++)
{
items[i].dispose();
}
MenuItem newItem = new MenuItem(menu,SWT.NONE);
newItem.setText("Menu for " + tree.getSelection()[0].getText());
}
});
shell.pack();
shell.open();
while (!shell.isdisposed())
{
if (!display.readAnddispatch())
display.sleep();
}
display.dispose();
}