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/jEdit/tags/jedit-4-3-pre5/org/gjt/sp/jedit/gui/AnimatedIcon.java

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Java | 136 lines | 72 code | 15 blank | 49 comment | 4 complexity | 4e28695872345a15d8b6dd253873a518 MD5 | raw file
  1/*
  2 * AnimatedIcon.java - Animated version of ImageIcon
  3 * :tabSize=8:indentSize=8:noTabs=false:
  4 * :folding=explicit:collapseFolds=1:
  5 *
  6 * Copyright (C) 2002 Kris Kopicki
  7 *
  8 * This program is free software; you can redistribute it and/or
  9 * modify it under the terms of the GNU General Public License
 10 * as published by the Free Software Foundation; either version 2
 11 * of the License, or any later version.
 12 *
 13 * This program is distributed in the hope that it will be useful,
 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 16 * GNU General Public License for more details.
 17 *
 18 * You should have received a copy of the GNU General Public License
 19 * along with this program; if not, write to the Free Software
 20 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 21 */
 22
 23package org.gjt.sp.jedit.gui;
 24
 25//{{{ Imports
 26import java.awt.*;
 27import java.awt.event.*;
 28import javax.swing.*;
 29//}}}
 30
 31/**
 32 * A animated version of ImageIcon. It can be used anywhere an ImageIcon can be.
 33 */
 34public class AnimatedIcon extends ImageIcon
 35{
 36	//{{{ AnimatedIcon constructor
 37	/**
 38	 * @param frames The frames to be used in the animation
 39	 * @param rate The frame rate of the animation, in frames per second
 40	 * @param host The container that the animation is used in
 41	 */
 42	public AnimatedIcon(Image icon, Image[] frames, int rate, Component host)
 43	{
 44		super(icon);
 45		this.icon = icon;
 46		this.frames = frames;
 47		delay = 1000/rate;
 48		this.host = host;
 49	} //}}}
 50
 51	//{{{ getFrames() method
 52	public Image[] getFrames()
 53	{
 54		return frames;
 55	} //}}}
 56
 57	//{{{ getIcon() method
 58	public Image getIcon()
 59	{
 60		return icon;
 61	} //}}}
 62
 63	//{{{ getRate() method
 64	public int getRate()
 65	{
 66		return 1000/delay;
 67	} //}}}
 68
 69	//{{{ setFrames() method
 70	public void setFrames(Image[] frames)
 71	{
 72		this.frames = frames;
 73	} //}}}
 74
 75	//{{{ setIcon() method
 76	public void setIcon(Image icon)
 77	{
 78		this.icon = icon;
 79	} //}}}
 80
 81	//{{{ setRate() method
 82	public void setRate(int rate)
 83	{
 84		delay = 1000/rate;
 85	} //}}}
 86
 87	//{{{ start() method
 88	/**
 89	 * Starts the animation rolling
 90	 */
 91	public void start()
 92	{
 93		if(timer != null)
 94			return;
 95
 96		timer = new Timer(delay,new Animator());
 97		timer.start();
 98	} //}}}
 99
100	//{{{ stop() method
101	/**
102	 * Stops the animation, and resets to frame 0
103	 */
104	public void stop()
105	{
106		current = 0;
107		if(timer != null)
108		{
109			timer.stop();
110			timer = null;
111		}
112
113		setImage(icon);
114		host.repaint();
115	} //}}}
116
117	//{{{ Private members
118	private Image[] frames;
119	private int current;
120	private int delay;
121	private Timer timer;
122	private Component host;
123	private Image icon;
124	//}}}
125
126	//{{{ Animator class
127	class Animator implements ActionListener
128	{
129		public void actionPerformed(ActionEvent evt)
130		{
131			current = (current + 1) % frames.length;
132			setImage(frames[current]);
133			host.repaint();
134		}
135	} //}}}
136}