| /****************************************************************************** |
| * Copyright (c) 2002, 2006 IBM Corporation and others. |
| * 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: |
| * IBM Corporation - initial API and implementation |
| * Dmitri Stadnik (Borland) - remove dependency to TextCompartmentEditPart |
| ****************************************************************************/ |
| |
| package org.eclipse.gmf.runtime.diagram.ui.editpolicies; |
| |
| import org.eclipse.emf.ecore.EObject; |
| import org.eclipse.gef.commands.Command; |
| import org.eclipse.gef.editpolicies.DirectEditPolicy; |
| import org.eclipse.gef.requests.DirectEditRequest; |
| |
| import org.eclipse.gmf.runtime.common.core.command.ICommand; |
| import org.eclipse.gmf.runtime.diagram.ui.commands.ICommandProxy; |
| import org.eclipse.gmf.runtime.diagram.ui.editparts.ITextAwareEditPart; |
| import org.eclipse.gmf.runtime.diagram.core.util.ViewUtil; |
| import org.eclipse.gmf.runtime.emf.core.util.EObjectAdapter; |
| import org.eclipse.gmf.runtime.gef.ui.internal.parts.TextCellEditorEx; |
| import org.eclipse.gmf.runtime.notation.View; |
| |
| /** |
| * @author melaasar |
| */ |
| public class LabelDirectEditPolicy |
| extends DirectEditPolicy { |
| |
| /** |
| * We need an adapter that will be able to hold both a model |
| * and an view |
| */ |
| class EObjectAdapterEx |
| extends EObjectAdapter { |
| |
| private View view = null; |
| |
| /** |
| * constructor |
| * @param element element to be wrapped |
| * @param view view to be wrapped |
| */ |
| public EObjectAdapterEx(EObject element, View view) { |
| super(element); |
| this.view = view; |
| } |
| |
| public Object getAdapter(Class adapter) { |
| Object o = super.getAdapter(adapter); |
| if (o != null) |
| return o; |
| if (adapter.equals(View.class)) { |
| return view; |
| } |
| return null; |
| } |
| } |
| |
| /** |
| * @see DirectEditPolicy#getDirectEditCommand(DirectEditRequest) |
| */ |
| protected Command getDirectEditCommand(DirectEditRequest edit) { |
| if (edit.getCellEditor() instanceof TextCellEditorEx) |
| if (!((TextCellEditorEx) edit.getCellEditor()).hasValueChanged()) |
| return null; |
| |
| String labelText = (String) edit.getCellEditor().getValue(); |
| |
| //for CellEditor, null is always returned for invalid values |
| if (labelText == null) { |
| return null; |
| } |
| |
| ITextAwareEditPart compartment = (ITextAwareEditPart) getHost(); |
| EObject model = (EObject)compartment.getModel(); |
| EObjectAdapter elementAdapter = null ; |
| if (model instanceof View) { |
| View view = (View)model; |
| elementAdapter = new EObjectAdapterEx(ViewUtil.resolveSemanticElement(view), |
| view); |
| } |
| else |
| elementAdapter = new EObjectAdapterEx(model, null); |
| // check to make sure an edit has occurred before returning a command. |
| String prevText = compartment.getParser().getEditString(elementAdapter, |
| compartment.getParserOptions().intValue()); |
| if (!prevText.equals(labelText)) { |
| ICommand iCommand = |
| compartment.getParser().getParseCommand(elementAdapter, labelText, 0); |
| return new ICommandProxy(iCommand); |
| } |
| |
| return null; |
| } |
| |
| /** |
| * @see DirectEditPolicy#showCurrentEditValue(DirectEditRequest) |
| */ |
| protected void showCurrentEditValue(DirectEditRequest request) { |
| String value = (String) request.getCellEditor().getValue(); |
| ((ITextAwareEditPart) getHost()).setLabelText(value); |
| } |
| |
| } |