/*
 * FocusableLableTest.java
 */

 package  mipt.mysterio.gui;

 import  java.awt.Color;
 import  java.awt.event.ActionEvent;
 import  java.awt.event.KeyEvent;
 import  javax.swing.AbstractAction;
 import  javax.swing.Action;
 import  javax.swing.ActionMap;
 import  javax.swing.BorderFactory;
 import  javax.swing.InputMap;
 import  javax.swing.JComponent;
 import  javax.swing.JFrame;
 import  javax.swing.JLabel;
 import  javax.swing.KeyStroke;

 public   class  FocusableLabelTest  extends  JFrame {
     public  FocusableLabelTest() {
         super ("Test");
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        
        JLabel label =  new  FocusableLabel();
        label.setBorder(BorderFactory.createLineBorder(Color.RED));
        
        //Отключаем менеджер расстановки (иначе как мы ее сможем перетаскивать?)
        setLayout( null );
        
        label.setLocation( 50 ,  50 );
        label.setSize( 100 ,  20 );
        
        label.setFocusable(true);
        
        add(label);
        
        setSize( 400 ,  400 );
        setVisible(true);
    }
    
     public   static   void  main(String args[]) {
         new  FocusableLabelTest();
    }
    
     static   class  FocusableLabel  extends  JLabel {
         public  FocusableLabel() {
             super ("метка");
            setFocusable(true);
            
            InputMap im = getInputMap();
            im.put(KeyStroke.getKeyStroke(KeyEvent.VK_UP, KeyEvent.SHIFT_DOWN_MASK), "MoveUp");
            im.put(KeyStroke.getKeyStroke(KeyEvent.VK_DOWN, KeyEvent.SHIFT_DOWN_MASK), "MoveDown");
            im.put(KeyStroke.getKeyStroke(KeyEvent.VK_LEFT, KeyEvent.SHIFT_DOWN_MASK), "MoveLeft");
            im.put(KeyStroke.getKeyStroke(KeyEvent.VK_RIGHT, KeyEvent.SHIFT_DOWN_MASK), "MoveRight");
            
            ActionMap am = getActionMap();
                                   
            am.put("MoveUp",  new  MoveAction("MoveUp"));
            am.put("MoveDown",  new  MoveAction("MoveDown"));
            am.put("MoveLeft",  new  MoveAction("MoveLeft"));
            am.put("MoveRight",  new  MoveAction("MoveRight"));
        }
        
         static   class  MoveAction  extends  AbstractAction {
            MoveAction(String name) {
                 super (name);                
            }            
            
             public   void  actionPerformed(ActionEvent e) {
                 int  dx, dy;
                String command = (String) getValue(NAME);
                 if  (command.equals("MoveUp")) {
                    dx =  0 ; dy = - 1 ;
                }  else   if  (command.equals("MoveDown")) {
                    dx =  0 ; dy =  1 ;
                }  else   if  (command.equals("MoveLeft")) {
                    dx = - 1 ; dy =  0 ;
                }  else  {
                    dx =  1 ; dy =  0 ;
                }

                JComponent source = (JComponent) e.getSource();
                System.out.println(command);
                source.setLocation(source.getX() + dx * VALUE, source.getY() + dy * VALUE);
            }
            
             private   static   final   int  VALUE =  10 ;
        }
        
    }
}