Package org.eclipse.gef.zest.fx.policies

Class SemanticZoomPolicy

java.lang.Object

org.eclipse.gef.common.adapt.IAdaptable.Bound.Impl<IVisualPart<? extends Node>>

org.eclipse.gef.mvc.fx.policies.AbstractPolicy

org.eclipse.gef.mvc.fx.policies.ViewportPolicy

org.eclipse.gef.zest.fx.policies.SemanticZoomPolicy

All Implemented Interfaces:

IAdaptable.Bound<IVisualPart<? extends Node>>, IPolicy

public class SemanticZoomPolicy
extends ViewportPolicy

The SemanticZoomPolicy extends the ViewportPolicy for associating semantic changes with viewport changes, i.e. opening of nested/nesting graphs when the zoom level is changed below/above a certain threshold.

Property Summary

Properties inherited from class org.eclipse.gef.common.adapt.IAdaptable.Bound.Impl

adaptable

Properties inherited from interface org.eclipse.gef.common.adapt.IAdaptable.Bound

adaptable

Nested Class Summary

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

IAdaptable.Bound.Impl<T extends IAdaptable>

Constructor Summary

Constructors

Constructor	Description
SemanticZoomPolicy()

Method Summary

Modifier and Type	Method	Description
ITransactionalOperation	commit()
protected ITransactionalOperation	createOperation()
protected List<NodePart>	findNestingNodes()	Returns a List containing all NodeParts (within the currently rendered graph) that have a nested graph assigned to them.
protected ChangeViewportOperation	getChangeViewportOperation()
protected NavigateOperation	getNavigateOperation()	Returns the NavigateOperation that is used to open nested/nesting Graphs.
void	init()
void	zoom(boolean relative, boolean discretize, double relativeZoom, double sceneX, double sceneY)

Methods inherited from class org.eclipse.gef.mvc.fx.policies.ViewportPolicy

fitToSize, fitToSize, fitToSize, scroll, setScroll, setZoom

Methods inherited from class org.eclipse.gef.mvc.fx.policies.AbstractPolicy

checkInitialized, getOperation, isInitialized, locallyExecuteOperation, rollback

Methods inherited from class org.eclipse.gef.common.adapt.IAdaptable.Bound.Impl

adaptableProperty, getAdaptable, setAdaptable

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.gef.common.adapt.IAdaptable.Bound

adaptableProperty, getAdaptable, setAdaptable

Methods inherited from interface org.eclipse.gef.mvc.fx.policies.IPolicy

getHost

Constructor Details

SemanticZoomPolicy

public SemanticZoomPolicy()

Method Details

commit

public ITransactionalOperation commit()

Specified by:

commit in interface IPolicy

Overrides:

commit in class AbstractPolicy

createOperation

protected ITransactionalOperation createOperation()

Overrides:

createOperation in class ViewportPolicy

findNestingNodes

protected List<NodePart> findNestingNodes()

Returns a List containing all NodeParts (within the currently rendered graph) that have a nested graph assigned to them.

Returns:

A List containing all NodeParts (within the currently rendered graph) that have a nested graph assigned to them.

getChangeViewportOperation

protected ChangeViewportOperation getChangeViewportOperation()

Overrides:

getChangeViewportOperation in class ViewportPolicy

getNavigateOperation

protected NavigateOperation getNavigateOperation()

Returns the NavigateOperation that is used to open nested/nesting Graphs.

Returns:

The NavigateOperation that is used to open nested/nesting Graphs.

init

public void init()

Specified by:

init in interface IPolicy

Overrides:

init in class AbstractPolicy

zoom

public void zoom(boolean relative,
 boolean discretize,
 double relativeZoom,
 double sceneX,
 double sceneY)

Overrides:

zoom in class ViewportPolicy