uk.ac.kcl.cch.jb.pliny.commands
Class AddLinkableObjectsCommand

java.lang.Object
  org.eclipse.gef.commands.Command
      uk.ac.kcl.cch.jb.pliny.commands.AddLinkableObjectsCommand

public class AddLinkableObjectsCommand

extends org.eclipse.gef.commands.Command

This command provides the mechanism for the adding of LinkableObjects that have been moved from one container to another (what GEF calls 're-parenting'). Re-parenting in GEF involves two commands -- one to remove the item from its old parent (called 'orphaning') and then a second to reconnect the item to its new parent. It is this second operation that is defined here.

These commands are invoked from GEF policy objects method createAddCommand in GEF's XYLayoutEditPolicy or ContainerEditPolicy.

Author:

John Bradley

See Also:

LinkableObjectContainerEditPolicy.createAddCommand(org.eclipse.gef.Request, org.eclipse.gef.EditPart, java.lang.Object), ResourceObjectsXYLayoutPolicy.createAddCommand(org.eclipse.gef.Request, org.eclipse.gef.EditPart, java.lang.Object)

Constructor Summary

AddLinkableObjectsCommand(LinkableObject newContainer, Resource resource, LinkableObject draggedObject, org.eclipse.draw2d.geometry.Rectangle rect)
the constructor used in the policy code to set up this command.

Method Summary

void	execute()
void	redo()
void	undo()

Methods inherited from class org.eclipse.gef.commands.Command

canExecute, canUndo, chain, dispose, getDebugLabel, getLabel, setDebugLabel, setLabel

Methods inherited from class java.lang.Object

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

Constructor Detail

AddLinkableObjectsCommand

public AddLinkableObjectsCommand(LinkableObject newContainer,
                                 Resource resource,
                                 LinkableObject draggedObject,
                                 org.eclipse.draw2d.geometry.Rectangle rect)

the constructor used in the policy code to set up this command.

Parameters:

newContainer - the new parent object

resource - the new parent objects 'suffogateFor' resource

draggedObject - the LinkableObject being dragged

rect - position for new linkable object

Method Detail

execute

public void execute()

undo

public void undo()

redo

public void redo()