Java by API/javax.swing/MenuSelectionManager

Материал из Java эксперт
Перейти к: навигация, поиск

MenuSelectionManager: clearSelectedPath()

   <source lang="java">

import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.KeyEvent; import javax.swing.JFrame; import javax.swing.JMenu; import javax.swing.JMenuBar; import javax.swing.JMenuItem; import javax.swing.MenuElement; import javax.swing.MenuSelectionManager; public class Main {

 public static void main(final String args[]) {
   JFrame frame = new JFrame("MenuSample Example");
   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   JMenuBar menuBar = new JMenuBar();
   // File Menu, F - Mnemonic
   JMenu fileMenu = new JMenu("File");
   fileMenu.setMnemonic(KeyEvent.VK_F);
   menuBar.add(fileMenu);
   // File->New, N - Mnemonic
   JMenuItem newMenuItem = new JMenuItem("New");
   fileMenu.add(newMenuItem);
   
   newMenuItem.addActionListener(new ActionListener(){
     public void actionPerformed(ActionEvent e) {
      MenuElement[] eles =  MenuSelectionManager.defaultManager().getSelectedPath();
      for(MenuElement ele: eles){
        System.out.println(ele);
        
      }
      MenuSelectionManager.defaultManager().clearSelectedPath();
     }});
   frame.setJMenuBar(menuBar);
   frame.setSize(350, 250);
   frame.setVisible(true);
 }

}

 </source>
   
  
 
  



MenuSelectionManager: defaultManager()

   <source lang="java">

import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.KeyEvent; import javax.swing.JFrame; import javax.swing.JMenu; import javax.swing.JMenuBar; import javax.swing.JMenuItem; import javax.swing.MenuElement; import javax.swing.MenuSelectionManager; public class Main {

 public static void main(final String args[]) {
   JFrame frame = new JFrame("MenuSample Example");
   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   JMenuBar menuBar = new JMenuBar();
   // File Menu, F - Mnemonic
   JMenu fileMenu = new JMenu("File");
   fileMenu.setMnemonic(KeyEvent.VK_F);
   menuBar.add(fileMenu);
   // File->New, N - Mnemonic
   JMenuItem newMenuItem = new JMenuItem("New");
   fileMenu.add(newMenuItem);
   
   newMenuItem.addActionListener(new ActionListener(){
     public void actionPerformed(ActionEvent e) {
      MenuElement[] eles =  MenuSelectionManager.defaultManager().getSelectedPath();
      for(MenuElement ele: eles){
        System.out.println(ele);
        
      }
      MenuSelectionManager.defaultManager().clearSelectedPath();
     }});
   frame.setJMenuBar(menuBar);
   frame.setSize(350, 250);
   frame.setVisible(true);
 }

}

 </source>
   
  
 
  



MenuSelectionManager: getSelectedPath()

   <source lang="java">

import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.KeyEvent; import javax.swing.JFrame; import javax.swing.JMenu; import javax.swing.JMenuBar; import javax.swing.JMenuItem; import javax.swing.MenuElement; import javax.swing.MenuSelectionManager; public class Main {

 public static void main(final String args[]) {
   JFrame frame = new JFrame("MenuSample Example");
   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   JMenuBar menuBar = new JMenuBar();
   // File Menu, F - Mnemonic
   JMenu fileMenu = new JMenu("File");
   fileMenu.setMnemonic(KeyEvent.VK_F);
   menuBar.add(fileMenu);
   // File->New, N - Mnemonic
   JMenuItem newMenuItem = new JMenuItem("New");
   fileMenu.add(newMenuItem);
   
   newMenuItem.addActionListener(new ActionListener(){
     public void actionPerformed(ActionEvent e) {
      MenuElement[] eles =  MenuSelectionManager.defaultManager().getSelectedPath();
      for(MenuElement ele: eles){
        System.out.println(ele);
        
      }
      MenuSelectionManager.defaultManager().clearSelectedPath();
     }});
   frame.setJMenuBar(menuBar);
   frame.setSize(350, 250);
   frame.setVisible(true);
 }

}

 </source>