Java tutorial
/* Copyright (C) 2007-2011 BlueXML - www.bluexml.com This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ package com.bluexml.side.form.clazz; import java.util.Iterator; import java.util.List; import java.util.Random; import org.eclipse.emf.common.command.Command; import org.eclipse.emf.common.command.CompoundCommand; import org.eclipse.emf.ecore.EObject; import org.eclipse.emf.edit.command.AddCommand; import org.eclipse.emf.edit.command.RemoveCommand; import org.eclipse.emf.edit.command.SetCommand; import org.eclipse.emf.edit.domain.EditingDomain; import org.eclipse.emf.edit.domain.IEditingDomainProvider; import org.eclipse.jface.action.Action; import org.eclipse.jface.viewers.ISelectionChangedListener; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.SelectionChangedEvent; import org.eclipse.ui.IWorkbenchPart; import com.bluexml.side.clazz.Clazz; import com.bluexml.side.form.FormClass; import com.bluexml.side.form.FormContainer; import com.bluexml.side.form.FormFactory; import com.bluexml.side.form.FormGroup; import com.bluexml.side.form.FormPackage; import com.bluexml.side.form.ModelChoiceField; import com.bluexml.side.form.Reference; import com.bluexml.side.form.VirtualField; import com.bluexml.side.form.clazz.utils.ClassInitialization; import com.bluexml.side.form.common.utils.FieldTransformation; import com.bluexml.side.form.common.utils.FormDiagramUtils; import com.bluexml.side.form.common.utils.InternalModification; public class ExpandModelChoice extends Action implements ISelectionChangedListener { protected EObject selectedObject; private EditingDomain domain; private Clazz c; ModelChoiceField mcf; public ExpandModelChoice(Clazz p_c, ModelChoiceField p_mcf) { super(); c = p_c; mcf = p_mcf; } public void selectionChanged(SelectionChangedEvent event) { if (event.getSelection() instanceof IStructuredSelection) { setEnabled(updateSelection((IStructuredSelection) event.getSelection())); } else { setEnabled(false); } } public boolean updateSelection(IStructuredSelection selection) { selectedObject = null; for (Iterator<?> objects = selection.iterator(); objects.hasNext();) { Object object = objects.next(); if (object instanceof ModelChoiceField && !(object instanceof Reference)) { selectedObject = (EObject) object; } else { return false; } } return selectedObject != null; } @Override public void run() { super.run(); doAction(); } private void doAction() { if (c != null && mcf != null) { InternalModification.dontMoveToDisabled(); Reference ref = FormFactory.eINSTANCE.createReference(); FieldTransformation.transform(mcf, ref); FormContainer form = createFormForRealClass(c, mcf); FormClass formClass = (FormClass) form; ref.getTarget().add(formClass); // Add the Form CompoundCommand cc = new CompoundCommand(); Command addFormCmd = AddCommand.create(domain, FormDiagramUtils.getParentFormCollection(mcf), FormPackage.eINSTANCE.getFormCollection_Forms(), form); cc.append(addFormCmd); // We seek virtualized fields of this mcf to change link to the reference List<VirtualField> listVf = FormDiagramUtils.getVirtualizedFields(mcf); for (VirtualField vf : listVf) { cc.append(SetCommand.create(domain, vf, FormPackage.eINSTANCE.getVirtualField_Link(), ref)); } // Commands : // Delete Model Choice Field Command delCmd = RemoveCommand.create(domain, (Object) mcf); cc.append(delCmd); // Add the reference Command addRefCmd = AddCommand.create(domain, mcf.eContainer(), FormPackage.eINSTANCE.getFormGroup_Children(), ref, ((FormGroup) mcf.eContainer()).getChildren().lastIndexOf(mcf)); cc.append(addRefCmd); cc.append(ClassInitialization.initializeClass(formClass, domain)); domain.getCommandStack().execute(cc); InternalModification.moveToDisabled(); } } protected FormContainer createFormForRealClass(Clazz p_class, ModelChoiceField p_mcf) { //FormContainer form = FormFactory.eINSTANCE.createFormContainer(); FormClass formClass = FormFactory.eINSTANCE.createFormClass(); //form.setRoot(formClass); formClass.setReal_class(p_class); Random random = new Random(); int pick = random.nextInt(Integer.MAX_VALUE); formClass.setId(p_class.getName() + "_" + pick); if (p_class.getTitle() != null && p_class.getTitle().length() > 0) { formClass.setLabel(p_class.getTitle()); //form.setName(p_class.getTitle() + " ref from " + ((FormGroup)p_mcf.eContainer()).getLabel() + " (" + p_mcf.getLabel() + ")"); } else { formClass.setLabel(p_class.getName()); //form.setName(p_class.getName() + " ref from " + ((FormGroup)p_mcf.eContainer()).getLabel() + " (" + p_mcf.getLabel() + ")"); } ; return formClass; } @Override public String getText() { String label = ((c.getTitle() != null && c.getTitle().length() > 0) ? c.getTitle() : c.getName()); if (c.isAbstract()) { label += " (Abstract Type)"; } return label; } public void setActiveWorkbenchPart(IWorkbenchPart workbenchPart) { if (workbenchPart instanceof IEditingDomainProvider) { domain = ((IEditingDomainProvider) workbenchPart).getEditingDomain(); } } }