/*
 * Created on 14.09.2004
 *
 * TODO To change the template for this generated file go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
package TUGLaby;

import java.awt.Graphics;
import java.awt.Image;
import javax.swing.JPanel;
import java.util.HashMap;

/**
 * @author user
 * 
 * TODO To change the template for this generated type comment go to Window -
 * Preferences - Java - Code Style - Code Templates
 */
public class CurrentSensorPanel extends JPanel {
    public final static int EMPTY_FLOOR = 0;

    public final static int FLOOR_0 = 1;

    public final static int FLOOR_1 = 2;

    public final static int FLOOR_2 = 3;

    public final static int FLOOR_3 = 4;

    public final static int STATE_COUNT = 5;

    private HashMap brick_images_;

    private int internal_state_;

    private Image current_image_;

    /**
     *  
     */
    public CurrentSensorPanel(HashMap brick_images) {
        super();
        brick_images_ = brick_images;
        internal_state_ = EMPTY_FLOOR;
        current_image_ = (Image) brick_images_.get("EMPTY_FLOOR");
        // TODO Auto-generated constructor stub
        initMouseListener();
    }

    public CurrentSensorPanel(HashMap brick_images, int init_state) {
        super();
        brick_images_ = brick_images;
        setInternalState(init_state);
        // TODO Auto-generated constructor stub
        initMouseListener();
    }

    public void paintComponent(Graphics g) {

        super.paintComponent(g);

        g.drawImage(current_image_, 0, 0, this);

    }

    private void setInternalState(int new_state) {

        if ((new_state >= EMPTY_FLOOR) && (new_state < STATE_COUNT))
            internal_state_ = new_state;
        paintState();
    }

    public int getInternalState() {
        return internal_state_;
    }

    private void paintState() {
        switch (internal_state_) {
        case EMPTY_FLOOR:
            current_image_ = (Image) brick_images_.get("EMPTY_FLOOR");
            break;
        case FLOOR_0:
            current_image_ = (Image) brick_images_.get("FLOOR_0");
            break;
        case FLOOR_1:
            current_image_ = (Image) brick_images_.get("FLOOR_1");
            break;
        case FLOOR_2:
            current_image_ = (Image) brick_images_.get("FLOOR_2");
            break;
        case FLOOR_3:
            current_image_ = (Image) brick_images_.get("FLOOR_3");
            break;
        }
        CurrentSensorPanel.this.repaint();
    }

    private void initMouseListener() {
        this.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {

                internal_state_ = (internal_state_ + 1) % 5;
                //System.out.println("Internal State: "+internal_state_ );
                paintState();
            }
        });
    }
}