de.tesis.dynaware.grapheditor

Class Commands

java.lang.Object

de.tesis.dynaware.grapheditor.Commands

public class Commands
extends java.lang.Object

Provides utility methods for editing a GModel via EMF commands.

Example:

 GModel model = GraphFactory.eINSTANCE.createGModel();
 GNode node = GraphFactory.eINSTANCE.createGNode();
 
 node.setX(100);
 node.setY(50);
 node.setWidth(150);
 node.setHeight(200);
 
 Commands.addNode(model, node);
 Commands.undo(model);
 Commands.redo(model);
 

Method Summary

Modifier and Type	Method and Description
static void	addNode(de.tesis.dynaware.grapheditor.model.GModel model, de.tesis.dynaware.grapheditor.model.GNode node) Adds a node to the model.
static void	clear(de.tesis.dynaware.grapheditor.model.GModel model) Clears everything in the given model.
static void	redo(de.tesis.dynaware.grapheditor.model.GModel model) Attempts to redo the given model to its next state.
static void	removeNode(de.tesis.dynaware.grapheditor.model.GModel model, de.tesis.dynaware.grapheditor.model.GNode node) Removes a node from the model.
static void	undo(de.tesis.dynaware.grapheditor.model.GModel model) Attempts to undo the given model to its previous state.
static void	updateLayoutValues(org.eclipse.emf.common.command.CompoundCommand command, de.tesis.dynaware.grapheditor.model.GModel model, SkinLookup skinLookup) Updates the model's layout values to match those in the skin instances.

Methods inherited from class java.lang.Object

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

Method Detail

addNode

public static void addNode(de.tesis.dynaware.grapheditor.model.GModel model,
                           de.tesis.dynaware.grapheditor.model.GNode node)

Adds a node to the model.

The node's x, y, width, and height values should be set before calling this method.

Parameters:

model - the GModel to which the node should be added

node - the GNode to add to the model

removeNode

public static void removeNode(de.tesis.dynaware.grapheditor.model.GModel model,
                              de.tesis.dynaware.grapheditor.model.GNode node)

Removes a node from the model.

Also removes any connections that were attached to the node.

Parameters:

model - the GModel from which the node should be removed

node - the GNode to remove from the model

clear

public static void clear(de.tesis.dynaware.grapheditor.model.GModel model)

Clears everything in the given model.

Parameters:

model - the GModel to be cleared

updateLayoutValues

public static void updateLayoutValues(org.eclipse.emf.common.command.CompoundCommand command,
                                      de.tesis.dynaware.grapheditor.model.GModel model,
                                      SkinLookup skinLookup)

Updates the model's layout values to match those in the skin instances.

This method adds set operations to the given compound command but does not execute it.

Parameters:

command - a CompoundCommand to which the set commands will be added

model - the GModel whose layout values should be updated

skinLookup - the SkinLookup in use for this graph editor instance

undo

public static void undo(de.tesis.dynaware.grapheditor.model.GModel model)

Attempts to undo the given model to its previous state.

Parameters:

model - the GModel to undo

redo

public static void redo(de.tesis.dynaware.grapheditor.model.GModel model)

Attempts to redo the given model to its next state.

Parameters:

model - the GModel to redo