/*
* This file is part of WebLookAndFeel library.
*
* WebLookAndFeel library 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 3 of the License, or
* (at your option) any later version.
*
* WebLookAndFeel library 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 WebLookAndFeel library. If not, see <http://www.gnu.org/licenses/>.
*/
package com.alee.extended.transition;
import com.alee.extended.transition.effects.TransitionEffect;
import com.alee.utils.CollectionUtils;
import com.alee.utils.MathUtils;
import com.alee.utils.SwingUtils;
import com.alee.utils.swing.WebTimer;
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.image.BufferedImage;
import java.util.ArrayList;
import java.util.List;
/**
* User: mgarin Date: 27.10.11 Time: 14:58
*/
public class ImageTransition extends JComponent implements ActionListener
{
// Transition listeners
protected List<TransitionListener> transitionListeners = new ArrayList<TransitionListener> ( 1 );
// Images
protected BufferedImage currentImage = null;
protected BufferedImage otherImage = null;
// Added effects
protected List<TransitionEffect> transitionEffects = new ArrayList<TransitionEffect> ();
// Variables
protected WebTimer animator = null;
protected boolean animating = false;
protected boolean blocked = false;
// Current transition effect
protected TransitionEffect actualTransitionEffect = null;
public ImageTransition ()
{
this ( null, null );
}
public ImageTransition ( final BufferedImage currentImage )
{
this ( currentImage, null );
}
public ImageTransition ( final BufferedImage currentImage, final BufferedImage otherImage )
{
super ();
this.currentImage = currentImage;
this.otherImage = otherImage;
SwingUtils.setOrientation ( this );
setOpaque ( false );
}
public boolean isAnimating ()
{
return animator != null && animator.isRunning () && animating;
}
public boolean isBlocked ()
{
return blocked;
}
public void setBlocked ( final boolean blocked )
{
this.blocked = blocked;
}
public BufferedImage getCurrentImage ()
{
return currentImage;
}
public void setCurrentImage ( final BufferedImage currentImage )
{
this.currentImage = currentImage;
}
public BufferedImage getOtherImage ()
{
return otherImage;
}
public void setOtherImage ( final BufferedImage otherImage )
{
this.otherImage = otherImage;
}
public List<TransitionEffect> getTransitionEffects ()
{
return transitionEffects;
}
public TransitionEffect getTransitionEffect ()
{
return transitionEffects != null && transitionEffects.size () > 0 ? transitionEffects.get ( 0 ) : null;
}
public void addTransitionEffect ( final TransitionEffect transitionEffect )
{
if ( transitionEffects == null )
{
transitionEffects = new ArrayList<TransitionEffect> ();
}
transitionEffects.add ( transitionEffect );
}
public void clearTransitionEffects ()
{
if ( transitionEffects != null )
{
transitionEffects.clear ();
transitionEffects = null;
}
}
public void removeTransitionEffect ( final TransitionEffect transitionEffect )
{
if ( transitionEffects != null )
{
transitionEffects.remove ( transitionEffect );
}
}
public void setTransitionEffect ( final TransitionEffect transitionEffect )
{
transitionEffects = transitionEffect != null ? CollectionUtils.copy ( transitionEffect ) : null;
}
public void setTransitionEffects ( final List<TransitionEffect> transitionEffects )
{
this.transitionEffects = transitionEffects;
}
public void setTransitionEffects ( final TransitionEffect... transitionEffects )
{
this.transitionEffects = transitionEffects != null ? CollectionUtils.copy ( transitionEffects ) : null;
}
public void destroy ()
{
if ( animator != null && animator.isRunning () )
{
animator.stop ();
animator = null;
}
if ( transitionListeners.size () > 0 )
{
transitionListeners.clear ();
}
if ( currentImage != null )
{
currentImage.flush ();
currentImage = null;
}
if ( otherImage != null )
{
otherImage.flush ();
otherImage = null;
}
}
public void changeImage ( final BufferedImage otherImage )
{
// Start only if there is not transition running
if ( !isAnimating () )
{
setOtherImage ( otherImage );
performTransition ();
}
}
public void performTransition ()
{
// Don't allow new transition before old one is finished or transitions blocked
if ( isAnimating () || isBlocked () )
{
return;
}
// Defining actual effect for this transaction
if ( transitionEffects == null || transitionEffects.size () <= 0 )
{
actualTransitionEffect = null;
}
else if ( transitionEffects.size () == 1 )
{
actualTransitionEffect = transitionEffects.get ( 0 );
}
else if ( transitionEffects.size () > 1 )
{
actualTransitionEffect = transitionEffects.get ( MathUtils.random ( transitionEffects.size () ) );
}
// Starting new transition
final long animationDelay = actualTransitionEffect != null ? actualTransitionEffect.getAnimationDelay () : 0;
animator = new WebTimer ( "ImageTransition.animator", animationDelay, this );
// Starting transition
fireTransitionStarted ();
animator.start ();
}
@Override
public void actionPerformed ( final ActionEvent e )
{
if ( actualTransitionEffect == null || actualTransitionEffect.performAnimationTick ( ImageTransition.this ) )
{
animator.stop ();
finishTransition ();
}
}
public void cancelTransition ()
{
if ( animator != null )
{
animator.stop ();
}
}
protected void finishTransition ()
{
// Switching images
final BufferedImage oldCurrent = this.currentImage;
this.currentImage = this.otherImage;
this.otherImage = oldCurrent;
// Nullifying current effect
actualTransitionEffect = null;
// Updating view
repaint ();
// Notifying about transition end
fireTransitionFinished ();
}
@Override
protected void paintComponent ( final Graphics g )
{
super.paintComponent ( g );
final Graphics2D g2d = ( Graphics2D ) g;
if ( actualTransitionEffect != null && actualTransitionEffect.isAnimating () && currentImage != null && otherImage != null )
{
// Transition view
actualTransitionEffect.paint ( g2d, ImageTransition.this );
}
else if ( currentImage != null )
{
// Static image
g2d.drawImage ( currentImage, 0, 0, getWidth (), getHeight (), null );
}
}
@Override
public Dimension getPreferredSize ()
{
if ( currentImage != null )
{
return new Dimension ( currentImage.getWidth (), currentImage.getHeight () );
}
else if ( otherImage != null )
{
return new Dimension ( otherImage.getWidth (), otherImage.getHeight () );
}
else
{
return new Dimension ( 0, 0 );
}
}
public void addTransitionListener ( final TransitionListener listener )
{
transitionListeners.add ( listener );
}
public void removeTransitionListener ( final TransitionListener listener )
{
transitionListeners.remove ( listener );
}
public void fireTransitionStarted ()
{
for ( final TransitionListener listener : CollectionUtils.copy ( transitionListeners ) )
{
listener.transitionStarted ();
}
}
public void fireTransitionFinished ()
{
for ( final TransitionListener listener : CollectionUtils.copy ( transitionListeners ) )
{
listener.transitionFinished ();
}
}
}