Package org.eclipse.gef.zest.fx.behaviors

Class GraphLayoutBehavior

java.lang.Object

org.eclipse.gef.mvc.fx.behaviors.AbstractBehavior

org.eclipse.gef.zest.fx.behaviors.AbstractLayoutBehavior

org.eclipse.gef.zest.fx.behaviors.GraphLayoutBehavior

All Implemented Interfaces:

IActivatable, IAdaptable.Bound<IVisualPart<? extends Node>>, IBehavior

public class GraphLayoutBehavior
extends AbstractLayoutBehavior

The GraphLayoutBehavior is responsible for initiating layout passes. It is only applicable to GraphPart.

Property Summary

Properties inherited from class org.eclipse.gef.mvc.fx.behaviors.AbstractBehavior

active, adaptable

Nested Class Summary

Nested classes/interfaces inherited from interface org.eclipse.gef.common.adapt.IAdaptable.Bound

IAdaptable.Bound.Impl<T extends IAdaptable>

Field Summary

Fields inherited from interface org.eclipse.gef.common.activate.IActivatable

ACTIVE_PROPERTY

Constructor Summary

Constructors

Constructor	Description
GraphLayoutBehavior()

Method Summary

Modifier and Type	Method	Description
void	applyLayout(boolean clean, Object extra)	Performs one layout pass using the static layout algorithm that is configured for the layout context.
protected Rectangle	computeLayoutBounds()	Determines the layout bounds for the graph.
protected void	doActivate()
protected void	doDeactivate()
GraphPart	getHost()
protected InfiniteCanvas	getInfiniteCanvas()	Returns the InfiniteCanvas of the IViewer of the host.
protected LayoutContext	getLayoutContext()	Returns the LayoutContext for which AbstractLayoutBehavior.preLayout() and AbstractLayoutBehavior.postLayout() shall be called before or after a layout pass, respectively.
protected NodePart	getNestingPart()	Returns the NodePart that contains the nested graph to which the behavior corresponds, if this behavior is related to a nested graph.
protected void	postLayout()	Called after a layout pass.
protected void	preLayout()	Called before a layout pass.
protected void	updateBounds()	Updates the bounds property from the visual (viewport or nesting node)

Methods inherited from class org.eclipse.gef.zest.fx.behaviors.AbstractLayoutBehavior

layoutLabels

Methods inherited from class org.eclipse.gef.mvc.fx.behaviors.AbstractBehavior

activate, activeProperty, adaptableProperty, addAnchoreds, addAnchoreds, addFeedback, addFeedback, addHandles, addHandles, clearFeedback, clearHandles, deactivate, getAdaptable, getFeedback, getFeedback, getFeedbackPartFactory, getFeedbackPartFactory, getFeedbackPerTargetSet, getHandlePartFactory, getHandlePartFactory, getHandles, getHandles, getHandlesPerTargetSet, hasFeedback, hasFeedback, hasHandles, hasHandles, isActive, removeAnchoreds, removeFeedback, removeFeedback, removeFeedback, removeHandles, removeHandles, removeHandles, setAdaptable, updateHandles, updateHandles

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

GraphLayoutBehavior

public GraphLayoutBehavior()

Method Details

applyLayout

public void applyLayout(boolean clean,
 Object extra)

Performs one layout pass using the static layout algorithm that is configured for the layout context.

Parameters:

clean - Whether to fully re-compute the layout or not.

extra - An extra Object that is passed-on to the ILayoutAlgorithm.

computeLayoutBounds

protected Rectangle computeLayoutBounds()

Determines the layout bounds for the graph.

Returns:

The bounds used to layout the graph.

doActivate

protected void doActivate()

Overrides:

doActivate in class AbstractLayoutBehavior

doDeactivate

protected void doDeactivate()

Overrides:

doDeactivate in class AbstractLayoutBehavior

getHost

public GraphPart getHost()

Specified by:

getHost in interface IBehavior

Overrides:

getHost in class AbstractBehavior

getInfiniteCanvas

protected InfiniteCanvas getInfiniteCanvas()

Returns the InfiniteCanvas of the IViewer of the host.

Returns:

The InfiniteCanvas of the IViewer of the host.

getLayoutContext

protected LayoutContext getLayoutContext()

Description copied from class: AbstractLayoutBehavior

Returns the LayoutContext for which AbstractLayoutBehavior.preLayout() and AbstractLayoutBehavior.postLayout() shall be called before or after a layout pass, respectively.

Specified by:

getLayoutContext in class AbstractLayoutBehavior

Returns:

The LayoutContext for which AbstractLayoutBehavior.preLayout() and AbstractLayoutBehavior.postLayout() shall be called before or after a layout pass, respectively.

getNestingPart

protected NodePart getNestingPart()

Returns the NodePart that contains the nested graph to which the behavior corresponds, if this behavior is related to a nested graph.

Returns:

The NodePart that contains the nested graph to which the behavior corresponds.

postLayout

protected void postLayout()

Description copied from class: AbstractLayoutBehavior

Called after a layout pass. Should be used to transfer layout information from the layout model.

Specified by:

postLayout in class AbstractLayoutBehavior

preLayout

protected void preLayout()

Description copied from class: AbstractLayoutBehavior

Called before a layout pass. Should be used to transfer layout information to the layout model.

Specified by:

preLayout in class AbstractLayoutBehavior

updateBounds

protected void updateBounds()

Updates the bounds property from the visual (viewport or nesting node)