Follow Techotopia on Twitter

On-line Guides
All Guides
eBook Store
iOS / Android
Linux for Beginners
Office Productivity
Linux Installation
Linux Security
Linux Utilities
Linux Virtualization
Linux Kernel
System/Network Admin
Programming
Scripting Languages
Development Tools
Web Development
GUI Toolkits/Desktop
Databases
Mail Systems
openSolaris
Eclipse Documentation
Techotopia.com
Virtuatopia.com

How To Guides
Virtualization
General System Admin
Linux Security
Linux Filesystems
Web Servers
Graphics & Desktop
PC Hardware
Windows
Problem Solutions
Privacy Policy

  




 

 

Eclipse Draw2d
3.3

org.eclipse.draw2d
Class LayoutAnimator

java.lang.Object
  extended by

org.eclipse.draw2d.Animator
      extended by
org.eclipse.draw2d.LayoutAnimator
All Implemented Interfaces:
LayoutListener

public class LayoutAnimator
extends Animator
implements LayoutListener

Animates the layout of a figure's children. The animator will capture the effects of a layout manager, and then play back the placement of children using linear interpolation for each child's start and end locations.

To use an animator, hook it as a layout listener for the figure whose layout is to be animated, by calling IFigure.addLayoutListener(LayoutListener). It is not necessary to have an animator for every figure in a composition that is undergoing animation. For example, if a figure without an animator moves during the animation, it will continue to move and layout its children normally during each step of the animation.

Animator must be used in conjunction with layouts. If figures are placed manually using setBounds(), the animator may not be able to track and playback the changes that occur.

Since:
3.2

Nested Class Summary
 
Nested classes inherited from class org.eclipse.draw2d. LayoutListener
LayoutListener.Stub
 
Constructor Summary
protected LayoutAnimator ()
          Constructs a new Animator.
 
Method Summary
protected  java.lang.Object getCurrentState ( IFigure container)
          Returns an object encapsulating the placement of children in a container.
static  LayoutAnimator getDefault ()
          Returns the default instance.
 void invalidate ( IFigure container)
          Hooks invalidation in case animation is in progress.
 boolean layout ( IFigure container)
          Hooks layout in case animation is in progress.
protected  boolean playback ( IFigure container)
          Plays back the animated layout.
 void postLayout ( IFigure container)
          Hooks post layout in case animation is in progress.
 void remove ( IFigure child)
          This callback is unused.
 void setConstraint ( IFigure child, java.lang.Object constraint)
          This callback is unused.
 
Methods inherited from class org.eclipse.draw2d. Animator
capture, init, playbackStarting, recordFinalState, recordInitialState, tearDown
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

LayoutAnimator

protected LayoutAnimator()
Constructs a new Animator. The default instance ( getDefault()) can be used on all figures being animated.

Since:
3.2
Method Detail

getCurrentState

protected java.lang.Object getCurrentState(
IFigure container)
Returns an object encapsulating the placement of children in a container. This method is called to capture both the initial and final states.

Specified by:
getCurrentState in class Animator
Parameters:
container - the container figure
Returns:
the current state
Since:
3.2

getDefault

public static 
LayoutAnimator getDefault()
Returns the default instance.

Returns:
the default instance
Since:
3.2

invalidate

public final void invalidate(
IFigure container)
Hooks invalidation in case animation is in progress.

Specified by:
invalidate in interface LayoutListener
Parameters:
container - the invalidated Figure
See Also:
LayoutListener.invalidate(IFigure)

layout

public final boolean layout(
IFigure container)
Hooks layout in case animation is in progress.

Specified by:
layout in interface LayoutListener
Parameters:
container - the figure incurring a layout
Returns:
true if the layout has been intercepted by the listener
See Also:
LayoutListener.layout(org.eclipse.draw2d.IFigure)

playback

protected boolean playback(
IFigure container)
Plays back the animated layout.

Overrides:
playback in class Animator
Parameters:
container - the figure being animated
Returns:
true if playback was successful
See Also:
Animator.playback(IFigure)

postLayout

public final void postLayout(
IFigure container)
Hooks post layout in case animation is in progress.

Specified by:
postLayout in interface LayoutListener
Parameters:
container - the figure incurring a layout
See Also:
LayoutListener.postLayout(IFigure)

remove

public final void remove(
IFigure child)
This callback is unused. Reserved for possible future use.

Specified by:
remove in interface LayoutListener
Parameters:
child - the child being removed
See Also:
LayoutListener.remove(IFigure)

setConstraint

public final void setConstraint(
IFigure child,
                                java.lang.Object constraint)
This callback is unused. Reserved for possible future use.

Specified by:
setConstraint in interface LayoutListener
Parameters:
child - the child being updated
constraint - the child's new constraint
See Also:
LayoutListener.setConstraint(IFigure, Object)

Eclipse Draw2d
3.3

Copyright (c) IBM Corp. and others 2000, 2007. All Rights Reserved.

 
 
  Published under the terms of the Eclipse Public License Version 1.0 ("EPL") Design by Interspire