/*
* Created on Apr 17, 2005
*/
package org.flexdock.dockbar.activation;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.Timer;
import org.flexdock.dockbar.DockbarManager;
import org.flexdock.dockbar.ViewPane;
/**
* @author Christopher Butler
*/
public class Animation implements Runnable, ActionListener {
private static int ANIMATION_INTERVAL = 20;
private static int TOTAL_FRAME_COUNT = 5;
private DockbarManager dockManager;
private Timer timer;
private float frameDelta;
private int frameCount;
private boolean hiding;
private Runnable next;
private Object lock;
public Animation(DockbarManager mgr, boolean hide) {
dockManager = mgr;
timer = new Timer(ANIMATION_INTERVAL, this);
frameDelta = (100f/(float)getTotalFrameCount())/100f;
hiding = hide;
lock = new Object();
}
public void run() {
timer.start();
sleep();
}
public void actionPerformed(ActionEvent e) {
resetViewpaneSize();
dockManager.revalidate();
if(frameCount==getTotalFrameCount()-1) {
timer.stop();
wakeUp();
} else
frameCount++;
}
private void resetViewpaneSize() {
ViewPane viewPane = dockManager.getViewPane();
int prefSize = dockManager.getPreferredViewpaneSize();
if(frameCount==0)
prefSize = getStartSize(prefSize);
else if(frameCount==getTotalFrameCount()-1)
prefSize = getEndSize(prefSize);
else {
int newSize = (int)((float)prefSize * (frameCount*frameDelta));
prefSize = hiding? prefSize-newSize: newSize;
}
viewPane.setPrefSize(prefSize);
}
private int getStartSize(int prefSize) {
if(hiding)
return prefSize;
return 0;
}
private int getEndSize(int prefSize) {
if(hiding)
return 0;
return prefSize;
}
private int getTotalFrameCount() {
return TOTAL_FRAME_COUNT;
}
public Runnable getNext() {
return next;
}
public void setNext(Runnable next) {
this.next = next;
}
private void sleep() {
synchronized(lock) {
try {
lock.wait();
} catch(InterruptedException e) {
System.err.println("Exception: " +e.getMessage());
e.printStackTrace();
}
}
}
private void wakeUp() {
synchronized(lock) {
lock.notifyAll();
}
}
}