/**
 * AlarmBeanCustomizer.java  1.00 97/07/09 Merlin Hughes
 *
 * Copyright (c) 1997 Merlin Hughes, All Rights Reserved.
 *
 * Permission to use, copy, modify, and distribute this software
 * for commercial and non-commercial purposes and without fee is
 * hereby granted provided that this copyright notice appears in
 * all copies.
 *
 * http://prominence.com/                         ego@merlin.org
 */

package org.merlin.beans.alarm;

import java.beans.*;
import java.awt.*;
import java.awt.event.*;
import java.net.*;

import org.merlin.beans.numberfield.*;

public class AlarmBeanCustomizer extends Panel implements Customizer, PropertyChangeListener {
  protected AlarmBean target;
  protected NumberFieldBean timeout;
  protected Image image;
  protected float angle = .5f;
  
  public AlarmBeanCustomizer () {
    setLayout (new BorderLayout ());
    try {
      timeout = (NumberFieldBean) Beans.instantiate (getClass ().getClassLoader (), "org.merlin.beans.numberfield.NumberFieldBean");
    } catch (Exception ex) {
      ex.printStackTrace ();
    }
    add ("South", (Component) Beans.getInstanceOf (timeout, Component.class));
    timeout.setColumns (5);
    timeout.setMinimum (0);
    timeout.setStep (100);
    timeout.addPropertyChangeListener (this);
    enableEvents (AWTEvent.MOUSE_EVENT_MASK |
                  AWTEvent.MOUSE_MOTION_EVENT_MASK);

    try {
      URL url = getClass ().getResource ("AlarmBeanCustomizer.gif");
      java.awt.Toolkit tk = java.awt.Toolkit.getDefaultToolkit ();
      image = tk.createImage ((java.awt.image.ImageProducer) url.getContent ());
    } catch (Exception ex) {
      ex.printStackTrace ();
    }
  }

  public void setObject (Object bean) {
    target = (AlarmBean) bean;
    timeout.setValue (target.getTimeout ());
  }

  public void propertyChange (PropertyChangeEvent e) {
    target.setTimeout (((Integer) e.getNewValue ()).intValue ());
    int val = Math.min (3999, target.getTimeout ());
    angle = (float) (Math.PI * 2 * val / 4000);
    repaint ();
    firePropertyChange ();
  }

  protected void processMouseEvent (MouseEvent e) {
    if ((e.getID () == MouseEvent.MOUSE_PRESSED) ||
        (e.getID () == MouseEvent.MOUSE_RELEASED))
      processMouseXY (e.getX (), e.getY ());
    super.processMouseEvent (e);
  }
  
  protected void processMouseMotionEvent (MouseEvent e) {
    if (e.getID () == MouseEvent.MOUSE_DRAGGED)
      processMouseXY (e.getX (), e.getY ());
    super.processMouseMotionEvent (e);
  }

  protected void processMouseXY (int x, int y) {
    int dx = 44 - x, dy = y - 51;
    if ((dx * dx + dy * dy <= 1722) && ((dx != 0) || (dy != 0)))
      timeout.setValue ((int) (2000. * Math.atan2 (dx, dy) / Math.PI) + 2000);
  }

  public void update (Graphics g) {
    paint (g);
  }

  public void paint (Graphics g) {
    if (image != null)
      g.drawImage (image, 3, 3, this);
    else {
      g.fillOval (3, 10, 83, 83);
      g.setColor (new Color (0xffffcc));
      g.fillOval (6, 13, 77, 77);
      g.setColor (getForeground ());
    }
    for (int j = -1; j < 2; ++ j)
      for (int i = -1; i < 2; ++ i)
        if ((i != 0) || (j != 0))
          g.drawLine (44 + i, 51 + j, 44 + (int) (30 * Math.sin (angle)),
                      51 - (int) (30 * Math.cos (angle)));
  }

  public Dimension getMinimumSize () {
    return getPreferredSize ();
  }

  public Dimension getPreferredSize () {
    return new Dimension (89, 128);
  }

  public Dimension getMaximumSize () {
    return getPreferredSize ();
  }

  protected PropertyChangeSupport listeners = new PropertyChangeSupport (this);

  public void addPropertyChangeListener (PropertyChangeListener l) {
    listeners.addPropertyChangeListener (l);
  }

  public void removePropertyChangeListener (PropertyChangeListener l) {
    listeners.removePropertyChangeListener (l);
  }

  protected void firePropertyChange () {
    listeners.firePropertyChange ("", null, null);
  }
}