Class DefaultUpdateDiagramFeature
java.lang.Object
org.eclipse.graphiti.features.impl.AbstractFeature
org.eclipse.graphiti.features.impl.AbstractUpdateFeature
org.eclipse.graphiti.features.impl.DefaultUpdateDiagramFeature
- All Implemented Interfaces:
ICustomAbortableUndoRedoFeature,ICustomUndoRedoFeature,IFeature,IFeatureProviderHolder,IUpdateFeature,IUpdate,IDescription,IName
public class DefaultUpdateDiagramFeature
extends AbstractUpdateFeature
implements ICustomAbortableUndoRedoFeature
The Class DefaultUpdateDiagramFeature. Updates the shapes directly contained
in the diagram. Does not update the connections contained in the diagram,
since in many cases the connections get already updated by the shapes they
belong to.
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionbooleanDecides if the processed feature can be re-done.booleanDecides if the current feature can be undone - this is the undo of the execute operation.booleancanUpdate(IUpdateContext context) Checks whether the values of the current pictogram element of the given context can be updated.protected Map<IUpdateFeature,IUpdateContext> findFeaturesToUpdateChildren(PictogramElement pe, boolean checkUpdateNeeded) booleanIs queried by the framework after a feature has been executed to find out if this feature should appear in the undo stack of e.g.booleanisAbort()The Graphiti framework will call this method afterICustomUndoRedoFeature.preUndo(org.eclipse.graphiti.features.context.IContext)/ICustomUndoRedoFeature.preRedo(org.eclipse.graphiti.features.context.IContext)have been called and before the actual undo/redo operation is triggered.voidThis method will be called by the Graphiti framework after the EMF undo has finished.voidThis method will be called by the Graphiti framework after the EMF undo is finished.voidThis method will be called by the Graphiti framework before the EMF undo has triggered.voidThis method will be called by the Graphiti framework before the EMF undo is triggered.booleanupdate(IUpdateContext context) Updates the pictogram element.updateNeeded(IUpdateContext context) Check whether the values in the pictogram element are up to date, that means whether the graphics algorithm of this pictogram element contain the latest values from the business objects.Methods inherited from class org.eclipse.graphiti.features.impl.AbstractUpdateFeature
canExecute, canUpdatePictogramElement, execute, getDescription, getName, resizeShape, updatePictogramElement, updatePictogramElementNeededMethods inherited from class org.eclipse.graphiti.features.impl.AbstractFeature
addGraphicalRepresentation, getAllBusinessObjectsForPictogramElement, getBusinessObjectForPictogramElement, getDiagram, getDiagramBehavior, getFeatureProvider, getProgressCallback, getUserDecision, isAvailable, layoutPictogramElement, link, link, manageColor, manageColor, manageDefaultFont, manageFont, manageFont, setProgressCallback, toStringMethods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, waitMethods inherited from interface org.eclipse.graphiti.features.IFeature
isAvailableMethods inherited from interface org.eclipse.graphiti.features.IFeatureProviderHolder
getFeatureProvider
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Constructor Details
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DefaultUpdateDiagramFeature
Creates a newDefaultUpdateDiagramFeature.- Parameters:
fp- the feature provider
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Method Details
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canUpdate
Description copied from interface:IUpdateChecks whether the values of the current pictogram element of the given context can be updated. -
update
Description copied from interface:IUpdateUpdates the pictogram element. It copies the latest values from the business model to the graphics algorithm of this pictogram elements. -
updateNeeded
Description copied from interface:IUpdateCheck whether the values in the pictogram element are up to date, that means whether the graphics algorithm of this pictogram element contain the latest values from the business objects.- Specified by:
updateNeededin interfaceIUpdate- Parameters:
context- the context- Returns:
- true if parts of the pictogram model needs to be updated with the latest values from the business model
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hasDoneChanges
public boolean hasDoneChanges()Description copied from interface:IFeatureIs queried by the framework after a feature has been executed to find out if this feature should appear in the undo stack of e.g. an editor. By default all features should appear there (see implementation inAbstractFeature), but features may decide to override this behavior. Note that this is a dynamic attribute of the feature that is queried each time after the feature has been executed.IMPORTANT NOTE: The implementor of the feature is responsible for correctly implementing this method! It might lead to inconsistencies in the command stack if this method returns
falsealthough the feature did changes.- Specified by:
hasDoneChangesin interfaceIFeature- Overrides:
hasDoneChangesin classAbstractFeature- Returns:
trueif the feature should appear in the undo stack,falseotherwise
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canUndo
Description copied from interface:IFeatureDecides if the current feature can be undone - this is the undo of the execute operation.- Specified by:
canUndoin interfaceICustomUndoRedoFeature- Specified by:
canUndoin interfaceIFeature- Overrides:
canUndoin classAbstractFeature- Parameters:
context- this is the general input for this method- Returns:
- true if the feature can be undone, false if not
- Since:
- 0.12
- See Also:
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preUndo
Description copied from interface:ICustomUndoRedoFeatureThis method will be called by the Graphiti framework before the EMF undo is triggered. Customers may revert their non-EMF changes done by the feature here or inICustomUndoRedoFeature.postUndo(IContext).- Specified by:
preUndoin interfaceICustomUndoRedoFeature- Parameters:
context- this is the instance of theIContextobject that was in use when executing the feature- Since:
- 0.12
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postUndo
Description copied from interface:ICustomUndoRedoFeatureThis method will be called by the Graphiti framework after the EMF undo is finished. Customers may revert their non-EMF changes done by the feature here or inICustomUndoRedoFeature.preUndo(IContext).- Specified by:
postUndoin interfaceICustomUndoRedoFeature- Parameters:
context- this is the instance of theIContextobject that was in use when executing the feature- Since:
- 0.12
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canRedo
Description copied from interface:ICustomUndoRedoFeatureDecides if the processed feature can be re-done. This method is called once by the Graphiti framework just before any redo work is started, e.g. beforeICustomUndoRedoFeature.preRedo(IContext).Note that as soon as any feature reports
falsehere, also all consecutive entries in the command stack are no longer reachable for redo.- Specified by:
canRedoin interfaceICustomUndoRedoFeature- Parameters:
context- this is the instance of theIContextobject that was in use when executing the feature- Returns:
- true if the feature can be re-done, false if not
- Since:
- 0.12
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preRedo
Description copied from interface:ICustomUndoRedoFeatureThis method will be called by the Graphiti framework before the EMF undo has triggered. Customers may re-apply their non-EMF changes done by the feature here or inICustomUndoRedoFeature.postRedo(IContext). (Usually it might be sufficient to delegate to the execution method of the feature.)- Specified by:
preRedoin interfaceICustomUndoRedoFeature- Parameters:
context- this is the instance of theIContextobject that was in use when executing the feature- Since:
- 0.12
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postRedo
Description copied from interface:ICustomUndoRedoFeatureThis method will be called by the Graphiti framework after the EMF undo has finished. Customers may re-apply their non-EMF changes done by the feature here or inICustomUndoRedoFeature.preRedo(IContext). (Usually it might be sufficient to delegate to the execution method of the feature.)- Specified by:
postRedoin interfaceICustomUndoRedoFeature- Parameters:
context- this is the instance of theIContextobject that was in use when executing the feature- Since:
- 0.12
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isAbort
public boolean isAbort()Description copied from interface:ICustomAbortableUndoRedoFeatureThe Graphiti framework will call this method afterICustomUndoRedoFeature.preUndo(org.eclipse.graphiti.features.context.IContext)/ICustomUndoRedoFeature.preRedo(org.eclipse.graphiti.features.context.IContext)have been called and before the actual undo/redo operation is triggered. In case this method returnstrue, the operation will be cancelled by the Graphiti framework by throwing anOperationCanceledExceptionthat causes am EMF revert of the operation.Implementing classes might e.g. set a flag in
ICustomUndoRedoFeature.preUndo(org.eclipse.graphiti.features.context.IContext)/ICustomUndoRedoFeature.preRedo(org.eclipse.graphiti.features.context.IContext)as cancellation indication and check that that flag here.- Specified by:
isAbortin interfaceICustomAbortableUndoRedoFeature- Returns:
truein case you want to cancel the current operation,falseotherwise.- Since:
- 0.12
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findFeaturesToUpdateChildren
protected Map<IUpdateFeature,IUpdateContext> findFeaturesToUpdateChildren(PictogramElement pe, boolean checkUpdateNeeded) - Since:
- 0.12
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