/*
* This file is part of lanterna (https://github.com/mabe02/lanterna).
*
* lanterna is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Copyright (C) 2010-2020 Martin Berglund
*/
package com.googlecode.lanterna.gui2;
import com.googlecode.lanterna.TerminalPosition;
import com.googlecode.lanterna.gui2.menu.MenuItem;
import java.util.Arrays;
This class is a Window
implementation that automatically sets some common settings that you'd want on specifically popup windows with menu items. It ensures that the window is modal and has a fixed position (rather than letting the window manager choose). /**
* This class is a {@link Window} implementation that automatically sets some common settings that you'd want on
* specifically popup windows with menu items. It ensures that the window is modal and has a fixed position (rather than
* letting the window manager choose).
*/
public class MenuPopupWindow extends AbstractWindow {
private final Panel menuItemPanel;
Creates a new popup window with a relative position to the component supplied.
Params: - parent – Component that this popup menu is triggered from
/**
* Creates a new popup window with a relative position to the component supplied.
* @param parent Component that this popup menu is triggered from
*/
public MenuPopupWindow(Component parent) {
setHints(Arrays.asList(Hint.MODAL, Hint.MENU_POPUP, Hint.FIXED_POSITION));
if (parent != null) {
TerminalPosition menuPositionGlobal = parent.toGlobal(TerminalPosition.TOP_LEFT_CORNER);
setPosition(menuPositionGlobal.withRelative(0, 1));
}
menuItemPanel = new Panel(new LinearLayout(Direction.VERTICAL));
setComponent(menuItemPanel);
}
Adds a new menu item to this popup window. The item will automatically be selected if it's the first one added.
Params: - menuItem – Menu item to add to the popup window.
/**
* Adds a new menu item to this popup window. The item will automatically be selected if it's the first one added.
* @param menuItem Menu item to add to the popup window.
*/
public void addMenuItem(MenuItem menuItem) {
menuItemPanel.addComponent(menuItem);
menuItem.setLayoutData(LinearLayout.createLayoutData(LinearLayout.Alignment.Fill));
if (menuItemPanel.getChildCount() == 1) {
setFocusedInteractable(menuItem);
}
invalidate();
}
}