private void startAnimation() {
if (_slides == null || _slides.size() == 0 || _stoppedTransitions) {
return;
}
_started = true;
_lastTimeSlideLoaded = 0;
if (_slides.size() == 1) {
try {
ImageCache.instance()
.getImage(
new URL(_slides.get(0).imageSrc),
new OnLoadedListener() {
public void onLoaded(
URL url, BufferedImage image, boolean fromCache, boolean fail) {
_currentImage = image;
repaint();
}
});
} catch (MalformedURLException e) {
e.printStackTrace();
}
} else {
_timer = new Timer();
_timer.schedule(
new TimerTask() {
@Override
public void run() {
tryMoveNext(false);
}
},
0,
200); // Check every 200 milliseconds if we should trigger a transition
}
}
private void tryMoveNext(boolean forceCurrentIndex) {
if (_loadingNextImage) {
return;
}
Slide slide = null;
if (_currentSlideIndex == -1) {
if (_randomStart) {
_currentSlideIndex = new Random(System.currentTimeMillis()).nextInt(_slides.size());
} else {
_currentSlideIndex = 0;
}
_loadingNextImage = true;
try {
ImageCache.instance()
.getImage(
new URL(_slides.get(_currentSlideIndex).imageSrc),
new OnLoadedListener() {
public void onLoaded(
URL url, BufferedImage image, boolean fromCache, boolean fail) {
_currentImage = image;
_loadingNextImage = false;
if (_currentImage != null) {
_lastImage = _currentImage;
_lastTimeSlideLoaded = System.currentTimeMillis();
repaint();
}
}
});
} catch (MalformedURLException e) {
e.printStackTrace();
}
} else {
slide = _slides.get(_currentSlideIndex);
if (forceCurrentIndex) {
// Switch Image without
try {
ImageCache.instance()
.getImage(
new URL(slide.imageSrc),
new OnLoadedListener() {
public void onLoaded(
URL url, BufferedImage image, boolean fromCache, boolean fail) {
_currentImage = prepareImage(image);
if (_transition != null) {
_transition.stop();
}
_transition = null;
repaint();
}
});
} catch (MalformedURLException e) {
e.printStackTrace();
}
return;
} else if (slide.duration + _lastTimeSlideLoaded + _transitionTime
< System.currentTimeMillis()) {
_currentSlideIndex = (_currentSlideIndex + 1) % _slides.size();
slide = _slides.get(_currentSlideIndex);
} else {
slide = null;
}
}
if (slide != null) {
_loadingNextImage = true;
try {
ImageCache.instance()
.getImage(
new URL(slide.imageSrc),
new OnLoadedListener() {
public void onLoaded(
URL url, BufferedImage image, boolean fromCache, boolean fail) {
_currentImage = prepareImage(image);
if (_lastImage != null && _currentImage != null) {
_transition =
new FadeSlideTransition(SlideshowPanel.this, _lastImage, _currentImage);
_transitionTime = _transition.getEstimatedDuration();
_transition.start();
}
_loadingNextImage = false;
if (_currentImage != null) {
_lastImage = _currentImage;
_lastTimeSlideLoaded = System.currentTimeMillis();
repaint();
}
}
});
} catch (MalformedURLException e) {
e.printStackTrace();
}
}
}