Package org.eclipse.gef.mvc.fx.operations

Class ChangeSelectionOperation

java.lang.Object

org.eclipse.core.commands.operations.AbstractOperation

org.eclipse.gef.mvc.fx.operations.ChangeSelectionOperation

All Implemented Interfaces:

IUndoableOperation, ITransactionalOperation

public class ChangeSelectionOperation
extends AbstractOperation
implements ITransactionalOperation

The ChangeSelectionOperation can be used to change the SelectionModel of an IViewer.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	DEFAULT_LABEL	"change-selection"

Constructor Summary

Constructors

Constructor	Description
ChangeSelectionOperation(String label, IViewer viewer, List<? extends IContentPart<? extends javafx.scene.Node>> finalSelection)	Creates a new ChangeSelectionOperation to change the selection.
ChangeSelectionOperation(IViewer viewer, List<? extends IContentPart<? extends javafx.scene.Node>> finalSelection)	Creates a new ChangeSelectionOperation to change the selection within the given IViewer by removing the given IContentParts.

Method Summary

Modifier and Type	Method	Description
IStatus	execute(IProgressMonitor monitor, IAdaptable info)
protected SelectionModel	getSelectionModel()	Returns the SelectionModel adapted to the viewer.
List<IContentPart<? extends javafx.scene.Node>>	getToBeDeselected()	Returns the parts that are to be deleted.
boolean	isContentRelevant()	Returns true if this ITransactionalOperation is actually changing model data (instead of only affecting the visualization).
boolean	isNoOp()	Returns true if this ITransactionalOperation has no effect (in comparison to its initial state).
IStatus	redo(IProgressMonitor monitor, IAdaptable info)
IStatus	undo(IProgressMonitor monitor, IAdaptable info)

Methods inherited from class org.eclipse.core.commands.operations.AbstractOperation

addContext, canExecute, canRedo, canUndo, dispose, getContexts, getLabel, hasContext, removeContext, setLabel, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.core.commands.operations.IUndoableOperation

addContext, canExecute, canRedo, canUndo, dispose, getContexts, getLabel, hasContext, removeContext

Field Details

DEFAULT_LABEL

public static final String DEFAULT_LABEL

 "change-selection"
 

The default label for this operation (i.e. used if no label is specified).

See Also:

• Constant Field Values

Constructor Details

ChangeSelectionOperation

public ChangeSelectionOperation(IViewer viewer,
 List<? extends IContentPart<? extends javafx.scene.Node>> finalSelection)

Creates a new ChangeSelectionOperation to change the selection within the given IViewer by removing the given IContentParts. The DEFAULT_LABEL is used.

Parameters:

viewer - The IViewer for which the selection is changed.

finalSelection - The IContentParts that are to be selected.

ChangeSelectionOperation

public ChangeSelectionOperation(String label,
 IViewer viewer,
 List<? extends IContentPart<? extends javafx.scene.Node>> finalSelection)

Creates a new ChangeSelectionOperation to change the selection.

Parameters:

label - The operation's label.

viewer - The IViewer for which the selection is changed.

finalSelection - The IContentParts that are to be selected.

Method Details

execute

public IStatus execute(IProgressMonitor monitor,
 IAdaptable info)
                throws ExecutionException

Specified by:

execute in interface IUndoableOperation

Specified by:

execute in class AbstractOperation

Throws:

ExecutionException

getSelectionModel

protected SelectionModel getSelectionModel()

Returns the SelectionModel adapted to the viewer.

Returns:

The SelectionModel adapter.

getToBeDeselected

public List<IContentPart<? extends javafx.scene.Node>> getToBeDeselected()

Returns the parts that are to be deleted.

Returns:

A reference to the to be deleted IContentParts.

isContentRelevant

public boolean isContentRelevant()

Description copied from interface: ITransactionalOperation

Returns true if this ITransactionalOperation is actually changing model data (instead of only affecting the visualization). Otherwise returns false. The content relevance of an ITransactionalOperation can be checked to determine if the execution of the operation will affect the model, for example, to set an editor's dirty flag.

Specified by:

isContentRelevant in interface ITransactionalOperation

Returns:

true if this ITransactionalOperation is actually changing model data, otherwise false.

isNoOp

public boolean isNoOp()

Description copied from interface: ITransactionalOperation

Returns true if this ITransactionalOperation has no effect (in comparison to its initial state). Otherwise returns false.

Specified by:

isNoOp in interface ITransactionalOperation

Returns:

true if this ITransactionalOperation has no effect, otherwise false.

redo

public IStatus redo(IProgressMonitor monitor,
 IAdaptable info)
             throws ExecutionException

Specified by:

redo in interface IUndoableOperation

Specified by:

redo in class AbstractOperation

Throws:

ExecutionException

undo

public IStatus undo(IProgressMonitor monitor,
 IAdaptable info)
             throws ExecutionException

Specified by:

undo in interface IUndoableOperation

Specified by:

undo in class AbstractOperation

Throws:

ExecutionException