Ok, I was trying to submit the JIRA issue but I don't see any place to
attach files, is that possible? I'm not familiar with the JIRA tracking
system...
El 27/05/11 12:43, Greg Brown escribió:
OK, it would probably help if you could submit a JIRA issue with a small sample
app that reproduces the problem.
On May 27, 2011, at 1:36 PM, Edgar Merino wrote:
I'm sorry, I was using System.out.println and not breakpoints. I increased the
duration to 400, rate to 28 but it gets even worse, it seems like having a
smaller duration helps a bit, but I can still reproduce the bug.
El 27/05/11 07:26, Greg Brown escribió:
Try using System.out() to log progress. If you set a breakpoint, your
transition will almost certainly complete while you are stepping through code.
Also try extending the transition duration since that will give you a larger
data set.
On May 26, 2011, at 9:15 PM, Edgar Merino wrote:
Hello, I've been trying to fix a bug I just found using Transitions and
ComponentMouseListeners. You can take, for example, the ScaleTransition I just
submitted to the dev mailing list, although this should apply to any transition.
For this example, I'll use the ScaleTransition in a ComponentMouseListener, as
follows:
import java.util.Arrays;
import java.util.Collection;
import org.apache.pivot.wtk.Component;
import org.apache.pivot.wtk.ComponentMouseListener;
public class ZoomComponentMouseListener implements ComponentMouseListener {
private ScaleTransition scaleTransition = new ScaleTransition();
public ZoomComponentMouseListener(Component targetComponent) {
scaleTransition.addComponent(targetComponent);
}
public boolean mouseMove(Component component, int x, int y) {
return false;
}
public void mouseOver(Component component) {
if (scaleTransition.isRunning()) {
scaleTransition.reverse();
} else {
scaleTransition.setReversed(false);
scaleTransition.start();
}
}
public void mouseOut(Component component) {
if (scaleTransition.isRunning()) {
scaleTransition.reverse();
} else {
scaleTransition.setReversed(true);
scaleTransition.start();
}
}
public void setZoom(float zoom) {
scaleTransition.setZoom(zoom);
}
}
When this listener is attached to a Component, like an ImageView for example,
if you get through the ImageView quickly with the mouse pointer and then cross
it again quickly, the method Transition#getPercentComplete will get screwed,
the second time the transition is started getPercentComplete will report 1 when
it should report 0. I've tested this many times, before calling
Transition#start, getPercentComplete reports 0, when calling start and checking
the value of getPercentComplete from the Transition#update method it reports 1.
I've got no clue on what's happening here, placing a breakpoint inside the
Transition#start method reports currentTime - startTime == 0, but checking
again when it gets to the Transition#update method currentTime - startTime == 1.
Perhaps I've anticipated on saying this is a bug for Transitions, perhaps is my
code what's causing problems, but I just don't have a clue on how to fix this.
Please, if anybody's able to reproduce this, let me know so we can find a
solution. I've attached the ScaleTransition here in case there are users not
subscribed to the dev mailing list.
Thanks in advance!
Edgar Merino
<ScaleTransition.java>
