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java.lang.Objectedu.umd.cs.piccolo.activities.PActivity
edu.umd.cs.piccolo.activities.PInterpolatingActivity
edu.umd.cs.piccolo.activities.PTransformActivity
public class PTransformActivity
PTransformActivity interpolates between two transforms setting its target's transform as it goes. See PNode. animate*() for an example of this activity in used. The source transform is retrieved from the target just before the animation is scheduled to start.
Nested Class Summary | |
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static interface |
PTransformActivity.Target
Target Objects that want to get transformed by the transform activity must implement this interface. |
Nested classes/interfaces inherited from class edu.umd.cs.piccolo.activities.PActivity |
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PActivity.PActivityDelegate |
Field Summary |
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Fields inherited from class edu.umd.cs.piccolo.activities.PInterpolatingActivity |
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DESTINATION_TO_SOURCE, SOURCE_TO_DESTINATION, SOURCE_TO_DESTINATION_TO_SOURCE |
Fields inherited from class edu.umd.cs.piccolo.activities.PActivity |
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TERMINATE_AND_FINISH, TERMINATE_AND_FINISH_IF_STEPPING, TERMINATE_WITHOUT_FINISHING |
Constructor Summary | |
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PTransformActivity(long duration,
long stepRate,
int loopCount,
int mode,
PTransformActivity.Target target,
AffineTransform destination)
Create a new PTransformActivity. |
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PTransformActivity(long duration,
long stepRate,
PTransformActivity.Target target)
Constructs a transform activity that will last for the specified duration, will update at the given step rate and will be applied to the target. |
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PTransformActivity(long duration,
long stepRate,
PTransformActivity.Target target,
AffineTransform destination)
Constructs a activity that will change the target's transform in the destination transform. |
Method Summary | |
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protected void |
activityStarted()
Is invoked when the activity is started. |
double[] |
getDestinationTransform()
Return the final transform that will be set on the transform activities target when the transform activity stops stepping. |
protected boolean |
isAnimation()
Whether each step invalidates paint. |
void |
setDestinationTransform(double[] newDestination)
Set the final transform that will be set on the transform activities target when the transform activity stops stepping. |
void |
setRelativeTargetValue(float zeroToOne)
Set's the target value to be the interpolation between the source and destination transforms. |
Methods inherited from class edu.umd.cs.piccolo.activities.PInterpolatingActivity |
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activityFinished, activityStep, computeSlowInSlowOut, getFirstLoop, getLoopCount, getMode, getSlowInSlowOut, setDuration, setFirstLoop, setLoopCount, setMode, setRelativeTargetValueAdjustingForMode, setSlowInSlowOut, terminate |
Methods inherited from class edu.umd.cs.piccolo.activities.PActivity |
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getActivityScheduler, getDelegate, getDuration, getNextStepTime, getStartTime, getStepRate, getStopTime, isStepping, paramString, processStep, setActivityScheduler, setDelegate, setStartTime, setStepRate, startAfter, terminate |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public PTransformActivity(long duration, long stepRate, PTransformActivity.Target target)
duration
- duration in milliseconds of the entire activitystepRate
- interval in milliseconds between successive animation
stepstarget
- the target of the activitypublic PTransformActivity(long duration, long stepRate, PTransformActivity.Target target, AffineTransform destination)
duration
- duration in milliseconds of the entire activitystepRate
- interval in milliseconds between successive animation
stepstarget
- the target of the activitydestination
- transform that the target will be after the ativity is
finishedpublic PTransformActivity(long duration, long stepRate, int loopCount, int mode, PTransformActivity.Target target, AffineTransform destination)
duration
- the length of one loop of the activitystepRate
- the amount of time between steps of the activityloopCount
- number of times the activity should reschedule itselfmode
- defines how the activity interpolates between statestarget
- the object that the activity will be applied to and where
the source state will be taken from.destination
- the destination color stateMethod Detail |
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protected boolean isAnimation()
isAnimation
in class PActivity
public double[] getDestinationTransform()
public void setDestinationTransform(double[] newDestination)
newDestination
- an array of doubles representing the destination
transformprotected void activityStarted()
activityStarted
in class PInterpolatingActivity
public void setRelativeTargetValue(float zeroToOne)
setRelativeTargetValue
in class PInterpolatingActivity
zeroToOne
- how far along the activity has progressed. 0 = not at
all, 1 = completed
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