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/*
* Copyright (c) 2012 Jason Polites
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.polites.android;
public class Animator extends Thread {
private GestureImageView view;
private Animation animation;
private boolean running = false;
private boolean active = false;
private long lastTime = -1L;
public Animator(GestureImageView view, String threadName) {
super(threadName);
this.view = view;
}
@Override
public void run() {
running = true;
while(running) {
while(active && animation != null) {
long time = System.currentTimeMillis();
active = animation.update(view, time - lastTime);
view.redraw();
lastTime = time;
while(active) {
try {
if(view.waitForDraw(32)) { // 30Htz
break;
}
}
catch (InterruptedException ignore) {
active = false;
}
}
}
synchronized(this) {
if(running) {
try {
wait();
}
catch (InterruptedException ignore) {}
}
}
}
}
public synchronized void finish() {
running = false;
active = false;
notifyAll();
}
public void play(Animation transformer) {
if(active) {
cancel();
}
this.animation = transformer;
activate();
}
public synchronized void activate() {
lastTime = System.currentTimeMillis();
active = true;
notifyAll();
}
public void cancel() {
active = false;
}
}
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