keyinputsensor.java

一款机器人仿真软件,功能上与microsoft robotics studio有些相似,但基于Java平台.突出特点是给出了传感器仿真,如声纳,激光等.

package simbad.sim;

import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import javax.swing.JPanel;
import simbad.gui.Simbad;


public class KeyInputSensor extends SensorDevice implements KeyListener{
    
    /** Last input , -1 if none */
   int lastKey;
   JPanel panel;
   
   public  KeyInputSensor(){
        super.create3D(true);
        lastKey = -1;
        
        //KeyboardFocusManager kfm = KeyboardFocusManager.getCurrentKeyboardFocusManager();
        //Component comp = kfm.getPermanentFocusOwner();
        //comp.addKeyListener(this);
   }
   
   
   public JPanel createInspectorPanel(){
       panel = new KeyInputSensorJPanel(this);
       return panel;
   }
    /*
     * a JPanel for displaying the eye image. 
     */
     public class KeyInputSensorJPanel extends JPanel {

		private static final long serialVersionUID = 1L;
		Font font;
         Color color;
         final static int HEIGHT=12;
         public KeyInputSensorJPanel(KeyListener listener){
             color = new Color(0,0,0);
             Dimension d= new Dimension(50,HEIGHT);
            setPreferredSize(d);
            setMinimumSize(d);
            font = new Font("Arial",Font.PLAIN,HEIGHT-2);
          
            
/*            // receive key event in parent
            this.addKeyListener(parent);
            
         //   this.requestFocusInWindow(true);
            this.requestFocus();
              setFocusable(true);
            */
          Simbad.getSimbadInstance().getDesktopPane().addKeyListener(listener);
            
        }
         protected void paintComponent( Graphics g){
            super.paintComponent(g);
            g.setFont(font);
            g.drawString("last key :"+KeyEvent.getKeyText(lastKey),HEIGHT+10,HEIGHT-1);
                
        }     
           
    }
    public void keyTyped(KeyEvent event) {
        
     }


    public void keyPressed(KeyEvent event) {
        lastKey =  event.getKeyCode();
        panel.repaint();
        
    }


    public void keyReleased(KeyEvent arg0) {
        lastKey = -1;
        panel.repaint();
        
    }


    public int getLastKey() {
        return lastKey;
    }
    
   
}