/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package org.apache.jmeter.gui.action;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.GridLayout;
import java.awt.Point;
import java.awt.event.ActionEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.SwingConstants;
import javax.swing.border.EmptyBorder;
import org.apache.jmeter.gui.GuiPackage;
import org.apache.jmeter.gui.util.EscapeDialog;
import org.apache.jmeter.util.JMeterUtils;
/**
* About Command. It may be extended in the future to add a list of installed
* protocols, config options, etc.
*
*/
public class AboutCommand extends AbstractAction {
private static final Set<String> commandSet;
private static JDialog about;
static {
Set<String> commands = new HashSet<>();
commands.add(ActionNames.ABOUT);
commandSet = Collections.unmodifiableSet(commands);
}
/**
* Handle the "about" action by displaying the "About Apache JMeter..."
* dialog box. The Dialog Box is NOT modal, because those should be avoided
* if at all possible.
*/
@Override
public void doAction(ActionEvent e) {
if (e.getActionCommand().equals(ActionNames.ABOUT)) {
this.about();
}
}
/**
* Provide the list of Action names that are available in this command.
*/
@Override
public Set<String> getActionNames() {
return AboutCommand.commandSet;
}
/**
* Called by about button. Raises about dialog. Currently the about box has
* the product image and the copyright notice. The dialog box is centered
* over the MainFrame.
*/
void about() {
JFrame mainFrame = GuiPackage.getInstance().getMainFrame();
JDialog dialog = initDialog(mainFrame);
// NOTE: these lines center the about dialog in the current window.
Point p = mainFrame.getLocationOnScreen();
Dimension d1 = mainFrame.getSize();
Dimension d2 = dialog.getSize();
dialog.setLocation(p.x + (d1.width - d2.width) / 2, p.y + (d1.height - d2.height) / 2);
dialog.pack();
dialog.setVisible(true);
}
/**
* @param mainFrame {@link JFrame}
* @return {@link JDialog} initializing it if necessary
*/
private static final JDialog initDialog(JFrame mainFrame) {
if (about == null) {
about = new EscapeDialog(mainFrame, "About Apache JMeter...", false);
about.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
about.setVisible(false);
}
});
JLabel jmeter = new JLabel(JMeterUtils.getImage("jmeter.png"));
JLabel copyright = new JLabel(JMeterUtils.getJMeterCopyright(), SwingConstants.CENTER);
JLabel rights = new JLabel("All Rights Reserved.", SwingConstants.CENTER);
JLabel version = new JLabel("Apache JMeter Version " + JMeterUtils.getJMeterVersion(), SwingConstants.CENTER);
JPanel infos = new JPanel();
infos.setOpaque(false);
infos.setLayout(new GridLayout(0, 1));
infos.setBorder(new EmptyBorder(5, 5, 5, 5));
infos.add(copyright);
infos.add(rights);
infos.add(version);
Container panel = about.getContentPane();
panel.setLayout(new BorderLayout());
panel.setBackground(Color.white);
panel.add(jmeter, BorderLayout.NORTH);
panel.add(infos, BorderLayout.SOUTH);
}
return about;
}
}