/*
* Copyright (c) 2007 Borland Software Corporation
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Dmitry Stadnik (Borland) - initial API and implementation
*/
package org.eclipse.gmf.examples.taipan.port.diagram.edit.parts;
import java.util.ArrayList;
import java.util.List;
import java.util.ListIterator;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.draw2d.XYLayout;
import org.eclipse.draw2d.geometry.Rectangle;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.gef.EditPart;
import org.eclipse.gef.EditPolicy;
import org.eclipse.gef.GraphicalEditPart;
import org.eclipse.gef.Request;
import org.eclipse.gef.commands.Command;
import org.eclipse.gmf.examples.taipan.layouts.PortLayoutProvider;
import org.eclipse.gmf.examples.taipan.port.diagram.edit.policies.PortCanonicalEditPolicy;
import org.eclipse.gmf.examples.taipan.port.diagram.edit.policies.PortItemSemanticEditPolicy;
import org.eclipse.gmf.runtime.common.core.command.CommandResult;
import org.eclipse.gmf.runtime.common.core.util.ObjectAdapter;
import org.eclipse.gmf.runtime.diagram.ui.actions.ActionIds;
import org.eclipse.gmf.runtime.diagram.ui.commands.DeferredLayoutCommand;
import org.eclipse.gmf.runtime.diagram.ui.commands.ICommandProxy;
import org.eclipse.gmf.runtime.diagram.ui.editparts.DiagramEditPart;
import org.eclipse.gmf.runtime.diagram.ui.editparts.IGraphicalEditPart;
import org.eclipse.gmf.runtime.diagram.ui.editpolicies.ContainerEditPolicy;
import org.eclipse.gmf.runtime.diagram.ui.editpolicies.EditPolicyRoles;
import org.eclipse.gmf.runtime.diagram.ui.internal.services.layout.IInternalLayoutRunnable;
import org.eclipse.gmf.runtime.diagram.ui.internal.services.layout.LayoutNode;
import org.eclipse.gmf.runtime.diagram.ui.requests.ArrangeRequest;
import org.eclipse.gmf.runtime.diagram.ui.requests.RequestConstants;
import org.eclipse.gmf.runtime.diagram.ui.services.layout.LayoutType;
import org.eclipse.gmf.runtime.notation.Node;
import org.eclipse.gmf.runtime.notation.View;
/**
* @generated
*/
public class PortEditPart extends DiagramEditPart {
/**
* @generated
*/
public final static String MODEL_ID = "Port"; //$NON-NLS-1$
/**
* @generated
*/
public static final int VISUAL_ID = 1000;
private PortLayoutProvider layoutProvider = new PortLayoutProvider();
/**
* @generated
*/
public PortEditPart(View view) {
super(view);
}
/**
* @generated
*/
protected void createDefaultEditPoliciesGen() {
super.createDefaultEditPolicies();
installEditPolicy(EditPolicyRoles.SEMANTIC_ROLE, new PortItemSemanticEditPolicy());
installEditPolicy(EditPolicyRoles.CANONICAL_ROLE, new PortCanonicalEditPolicy());
// removeEditPolicy(org.eclipse.gmf.runtime.diagram.ui.editpolicies.EditPolicyRoles.POPUPBAR_ROLE);
}
protected void createDefaultEditPolicies() {
createDefaultEditPoliciesGen();
installEditPolicy(EditPolicy.CONTAINER_ROLE, new ContainerEditPolicy() {
protected Command getArrangeCommand(ArrangeRequest request) {
if (layoutProvider.isWorking()) {
return null;
}
// DeferredCommand is patched to arrange all children when no viewAdapters is specified
if (RequestConstants.REQ_ARRANGE_DEFERRED.equals(request.getType())) {
String layoutType = request.getLayoutType();
TransactionalEditingDomain editingDomain = ((IGraphicalEditPart) getHost()).getEditingDomain();
return new ICommandProxy(new DeferredLayoutCommand(editingDomain, request.getViewAdaptersToArrange(), (IGraphicalEditPart) getHost(), layoutType) {
@Override
protected CommandResult doExecuteWithResult(IProgressMonitor progressMonitor, IAdaptable info) throws ExecutionException {
if (viewAdapters == null || viewAdapters.isEmpty()) {
viewAdapters = new ArrayList(PortEditPart.this.getChildren());
}
return super.doExecuteWithResult(progressMonitor, info);
}
});
}
// Snap to grid command is stripped off to prevent loops
String layoutDesc = request.getLayoutType() != null ? request.getLayoutType() : LayoutType.DEFAULT;
boolean offsetFromBoundingBox = false;
List editparts = new ArrayList();
if ((ActionIds.ACTION_ARRANGE_ALL.equals(request.getType())) || (ActionIds.ACTION_TOOLBAR_ARRANGE_ALL.equals(request.getType()))) {
editparts = ((IGraphicalEditPart) getHost()).getChildren();
request.setPartsToArrange(editparts);
}
if ((ActionIds.ACTION_ARRANGE_SELECTION.equals(request.getType())) || (ActionIds.ACTION_TOOLBAR_ARRANGE_SELECTION.equals(request.getType()))) {
editparts = request.getPartsToArrange();
if (!(((GraphicalEditPart) ((EditPart) editparts.get(0)).getParent()).getContentPane().getLayoutManager() instanceof XYLayout)) {
return null;
}
offsetFromBoundingBox = true;
}
if (RequestConstants.REQ_ARRANGE_RADIAL.equals(request.getType())) {
editparts = request.getPartsToArrange();
offsetFromBoundingBox = true;
layoutDesc = LayoutType.RADIAL;
}
if (editparts.isEmpty()) {
return null;
}
List nodes = new ArrayList(editparts.size());
ListIterator li = editparts.listIterator();
while (li.hasNext()) {
IGraphicalEditPart ep = (IGraphicalEditPart) li.next();
View view = ep.getNotationView();
if (ep.isActive() && view != null && view instanceof Node) {
Rectangle bounds = ep.getFigure().getBounds();
nodes.add(new LayoutNode((Node) view, bounds.width, bounds.height));
}
}
if (nodes.isEmpty()) {
return null;
}
List hints = new ArrayList(2);
hints.add(layoutDesc);
hints.add(getHost());
IAdaptable layoutHint = new ObjectAdapter(hints);
Runnable layoutRun = layoutNodes(nodes, offsetFromBoundingBox, layoutHint);
return ((IInternalLayoutRunnable) layoutRun).getCommand();
}
public Runnable layoutNodes(List nodes, boolean offsetFromBoundingBox, IAdaptable layoutHint) {
return layoutProvider.layoutLayoutNodes(nodes, offsetFromBoundingBox, layoutHint);
}
});
}
public Command getCommand(Request request) {
Command command = super.getCommand(request);
if (request.getType().equals(REQ_CREATE) || request.getType().equals(REQ_MOVE_CHILDREN) || request.getType().equals(REQ_RESIZE_CHILDREN)) {
ArrangeRequest layoutRequest = new ArrangeRequest(RequestConstants.REQ_ARRANGE_DEFERRED);
Command layoutCommand = super.getCommand(layoutRequest);
if (layoutCommand != null) {
command = command.chain(layoutCommand);
}
}
return command;
}
}
