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| package menu;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.File;
public class SwingMenuDemo {
private JScrollPane scroll;
private JFrame mainFrame;
private JLabel photo;
// private JLabel headerLabel;
private JLabel statusLabel;
// private JPanel controlPanel;
private JMenuBar menuBar;
public SwingMenuDemo(){
prepareGUI();
}
public static void main(String[] args){
SwingMenuDemo swingMenuDemo = new SwingMenuDemo();
swingMenuDemo.showMenuDemo();
}
private void prepareGUI(){
mainFrame = new JFrame("Java SWING Examples");
mainFrame.setSize(800,800);
mainFrame.setLayout(new GridLayout(1,1));
scroll = new JScrollPane();
//headerLabel = new JLabel("",JLabel.CENTER );
//statusLabel = new JLabel("",JLabel.CENTER);
photo = new JLabel("",JLabel.CENTER);
//photo.setSize(300,300);
//statusLabel.setSize(350,100);
mainFrame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent windowEvent){
System.exit(0);
}
});
// controlPanel = new JPanel();
// controlPanel.setLayout(new FlowLayout());
// mainFrame.add(headerLabel);
mainFrame.add(scroll);
// mainFrame.add(statusLabel);
mainFrame.setVisible(true);
}
private void showMenuDemo(){
//create a menu bar
menuBar = new JMenuBar();
//create menus
JMenu fileMenu = new JMenu("Файл");
JMenu editMenu = new JMenu("Редактирование");
final JMenu aboutMenu = new JMenu("О программе");
final JMenu linkMenu = new JMenu("Справка");
//create menu items
JMenuItem newMenuItem = new JMenuItem("Очистить");
newMenuItem.setAccelerator(KeyStroke.getKeyStroke('L',
Toolkit.getDefaultToolkit( ).getMenuShortcutKeyMask( ), false));
newMenuItem.setActionCommand("New");
JMenuItem openMenuItem = new JMenuItem("Открыть");
openMenuItem.setAccelerator(KeyStroke.getKeyStroke('O',
Toolkit.getDefaultToolkit( ).getMenuShortcutKeyMask( ), false));
openMenuItem.setActionCommand("Open");
JMenuItem saveMenuItem = new JMenuItem("Save");
saveMenuItem.setAccelerator(KeyStroke.getKeyStroke('S',
Toolkit.getDefaultToolkit( ).getMenuShortcutKeyMask( ), false));
saveMenuItem.setActionCommand("Save");
JMenuItem exitMenuItem = new JMenuItem("Exit");
exitMenuItem.setAccelerator(KeyStroke.getKeyStroke('E',
Toolkit.getDefaultToolkit( ).getMenuShortcutKeyMask( ), false));
exitMenuItem.setActionCommand("Exit");
JMenuItem cutMenuItem = new JMenuItem("Cut");
cutMenuItem.setAccelerator(KeyStroke.getKeyStroke('X',
Toolkit.getDefaultToolkit( ).getMenuShortcutKeyMask( ), false));
cutMenuItem.setActionCommand("Cut");
JMenuItem copyMenuItem = new JMenuItem("Copy");
copyMenuItem.setAccelerator(KeyStroke.getKeyStroke('C',
Toolkit.getDefaultToolkit( ).getMenuShortcutKeyMask( ), false));
copyMenuItem.setActionCommand("Copy");
JMenuItem pasteMenuItem = new JMenuItem("Paste");
pasteMenuItem.setAccelerator(KeyStroke.getKeyStroke('P',
Toolkit.getDefaultToolkit( ).getMenuShortcutKeyMask( ), false));
pasteMenuItem.setActionCommand("Paste");
MenuItemListener menuItemListener = new MenuItemListener();
exitApp exit = new exitApp();
openImage open = new openImage();
clearImage clear = new clearImage();
newMenuItem.addActionListener(clear);
openMenuItem.addActionListener(open);
saveMenuItem.addActionListener(menuItemListener);
exitMenuItem.addActionListener(exit);
cutMenuItem.addActionListener(menuItemListener);
copyMenuItem.addActionListener(menuItemListener);
pasteMenuItem.addActionListener(menuItemListener);
final JCheckBoxMenuItem showWindowMenu = new JCheckBoxMenuItem("Show About", true);
showWindowMenu.addItemListener(new ItemListener() {
public void itemStateChanged(ItemEvent e) {
if(showWindowMenu.getState()){
menuBar.add(aboutMenu);
mainFrame.repaint();
}else{
menuBar.remove(aboutMenu);
mainFrame.repaint();
}
}
});
final JRadioButtonMenuItem showLinksMenu =
new JRadioButtonMenuItem("Show Links", true);
showLinksMenu.addItemListener(new ItemListener() {
public void itemStateChanged(ItemEvent e) {
if(menuBar.getMenu(3)!= null ){
menuBar.remove(linkMenu);
mainFrame.repaint();
}else{
if (menuBar.getMenu(2)==linkMenu) {
menuBar.remove(linkMenu);
mainFrame.repaint();
} else {
menuBar.add(linkMenu);
mainFrame.repaint();
}
}
}
});
//add menu items to menus
fileMenu.add(newMenuItem);
fileMenu.add(openMenuItem);
fileMenu.add(saveMenuItem);
fileMenu.addSeparator();
fileMenu.add(showWindowMenu);
fileMenu.addSeparator();
fileMenu.add(showLinksMenu);
fileMenu.addSeparator();
fileMenu.add(exitMenuItem);
editMenu.add(cutMenuItem);
editMenu.add(copyMenuItem);
editMenu.add(pasteMenuItem);
//add menu to menubar
menuBar.add(fileMenu);
menuBar.add(editMenu);
menuBar.add(aboutMenu);
menuBar.add(linkMenu);
//add menubar to the frame
mainFrame.setJMenuBar(menuBar);
mainFrame.setVisible(true);
}
class MenuItemListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
//statusLabel.setText(e.getActionCommand()
// + " JMenuItem clicked.");
}
}
class exitApp implements ActionListener {
public void actionPerformed(ActionEvent e) {
System.exit(0);
}
}
class clearImage implements ActionListener {
public void actionPerformed(ActionEvent e) {
// statusLabel.setText(e.getActionCommand()
// + " JMenuItem clicked.");
photo.setIcon(null);
}
}
class openImage implements ActionListener {
public void actionPerformed(ActionEvent e) {
// statusLabel.setText(e.getActionCommand()
// + " JMenuItem clicked.");
JFileChooser jfc = new JFileChooser();
if (jfc.showOpenDialog(menuBar)==JFileChooser.APPROVE_OPTION) {
File f = jfc.getSelectedFile();
ImageIcon icon = new ImageIcon(f.toString());
Image image = icon.getImage();
photo.setIcon(icon);
photo.setHorizontalAlignment(JLabel.CENTER);
scroll.getViewport().add(photo);
}
}
}
} |
(
