/*
* org.openmicroscopy.shoola.util.ui.AnimatedPane
*
*------------------------------------------------------------------------------
* Copyright (C) 2006-2008 University of Dundee. All rights reserved.
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*------------------------------------------------------------------------------
*/
package org.openmicroscopy.shoola.util.ui;
//Java imports
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GraphicsConfiguration;
import java.awt.GraphicsEnvironment;
import java.awt.image.BufferedImage;
import javax.swing.JComponent;
import javax.swing.JPanel;
//Third-party libraries
//Application-internal dependencies
/**
* Component displaying the animation.
*
* @author Jean-Marie Burel
* <a href="mailto:j.burel@dundee.ac.uk">j.burel@dundee.ac.uk</a>
* @author Donald MacDonald
* <a href="mailto:donald@lifesci.dundee.ac.uk">donald@lifesci.dundee.ac.uk</a>
* @version 3.0
* <small>
* (<b>Internal version:</b> $Revision: $Date: $)
* </small>
* @since 3.0-Beta4
*/
class AnimatedPane
extends JPanel
{
/** The size of the component. */
private Dimension animatedSize;
/** The source of the animation. */
private JComponent source;
/** The off-screen image. */
private BufferedImage image;
/** The graphics configuration. */
private GraphicsConfiguration config;
/** Reference to the parent. */
private AnimatedJFrame parent;
/**
* Create an off-screen image for the passed source.
*
* @param src The source where to paint the image.
*/
private void makeOffscreenImage(JComponent src)
{
if (source == null) return;
image = config.createCompatibleImage(src.getWidth(), src.getHeight());
Graphics2D g2D = (Graphics2D) image.getGraphics();
src.paint(g2D);
}
/**
* Creates a new instance.
*
* @param parent Reference to the parent.
*/
AnimatedPane(AnimatedJFrame parent)
{
this.parent = parent;
animatedSize = new Dimension(1, 1);
GraphicsEnvironment
env = GraphicsEnvironment.getLocalGraphicsEnvironment();
config = env.getDefaultScreenDevice().getDefaultConfiguration();
setOpaque(false);
}
/**
* Sets the source.
*
* @param source The value to set.
*/
void setSource(JComponent source)
{
this.source = source;
if (source == null) return;
animatedSize.width = source.getWidth();
if (parent.getOrientation() != AnimatedJFrame.DOWN)
animatedSize.height = source.getHeight();
makeOffscreenImage(source);
}
/**
* Sets the height of the component.
*
* @param height The value to set.
*/
void setAnimatingHeight(int height)
{
animatedSize.height = height;
if (parent.getOrientation() == AnimatedJFrame.DOWN)
setSize(animatedSize);
}
/**
* Overridden to return the default size.
* @see JPanel#getPreferredSize()
*/
public Dimension getPreferredSize() { return animatedSize; }
/**
* Overridden to return the default size.
* @see JPanel#getMinimumSize()
*/
public Dimension getMinimumSize() { return animatedSize; }
/**
* Overridden to return the default size.
* @see JPanel#getMaximumSize()
*/
public Dimension getMaximumSize() { return animatedSize; }
/**
* Overridden to paint the off-screen image.
* @see JPanel#paintComponent(Graphics)
*/
public void paintComponent(Graphics g)
{
super.paintComponent(g);
if (image == null) return;
BufferedImage img;
try {
switch (parent.getOrientation()) {
case AnimatedJFrame.UP_MIDDLE:
case AnimatedJFrame.UP_RIGHT:
case AnimatedJFrame.UP_LEFT:
img = image.getSubimage(0, 0, source.getWidth(),
animatedSize.height);
g.drawImage(img, 0,
source.getHeight()-animatedSize.height, this);
break;
default:
img = image.getSubimage(0,
image.getHeight()-animatedSize.height,
source.getWidth(), animatedSize.height);
g.drawImage(img, 0, 0, this);
}
} catch (Exception e) {} //ignore
}
}