Java tutorial
/* * ==================================================================== * * The ObjectStyle Group Software License, Version 1.0 * * Copyright (c) 2006 The ObjectStyle Group and individual authors of the * software. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * 3. The end-user documentation included with the redistribution, if any, must * include the following acknowlegement: "This product includes software * developed by the ObjectStyle Group (http://objectstyle.org/)." Alternately, * this acknowlegement may appear in the software itself, if and wherever such * third-party acknowlegements normally appear. * * 4. The names "ObjectStyle Group" and "Cayenne" must not be used to endorse or * promote products derived from this software without prior written permission. * For written permission, please contact andrus@objectstyle.org. * * 5. Products derived from this software may not be called "ObjectStyle" nor * may "ObjectStyle" appear in their names without prior written permission of * the ObjectStyle Group. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * OBJECTSTYLE GROUP OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * ==================================================================== * * This software consists of voluntary contributions made by many individuals on * behalf of the ObjectStyle Group. For more information on the ObjectStyle * Group, please see <http://objectstyle.org/>. * */ package org.objectstyle.wolips.eomodeler.editors.entity; import org.eclipse.core.databinding.DataBindingContext; import org.eclipse.core.databinding.beans.BeansObservables; import org.eclipse.jface.databinding.swt.SWTObservables; import org.eclipse.jface.viewers.ComboViewer; import org.eclipse.jface.viewers.ISelection; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.swt.SWT; import org.eclipse.swt.layout.FormLayout; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Combo; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Text; import org.eclipse.ui.IWorkbenchPart; import org.eclipse.ui.views.properties.tabbed.AbstractPropertySection; import org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetPage; import org.objectstyle.wolips.baseforplugins.util.ComparisonUtils; import org.objectstyle.wolips.eomodeler.Messages; import org.objectstyle.wolips.eomodeler.core.model.EOEntity; import org.objectstyle.wolips.eomodeler.core.model.EOModel; import org.objectstyle.wolips.eomodeler.utils.BooleanUpdateValueStrategy; import org.objectstyle.wolips.eomodeler.utils.ComboViewerBinding; import org.objectstyle.wolips.eomodeler.utils.FormUtils; import org.objectstyle.wolips.eomodeler.utils.UglyFocusHackWorkaroundListener; public class EOEntityBasicEditorSection extends AbstractPropertySection { private EOEntity myEntity; private Text myNameText; private Text myExternalNameText; private Text myClassNameText; private ComboViewer myParentEntityComboViewer; private Text myRestrictingQualifierText; private Button myAbstractButton; private DataBindingContext myBindingContext; private ComboViewerBinding myParentEntityBinding; public void createControls(Composite _parent, TabbedPropertySheetPage _tabbedPropertySheetPage) { super.createControls(_parent, _tabbedPropertySheetPage); Composite form = getWidgetFactory().createFlatFormComposite(_parent); FormLayout formLayout = new FormLayout(); form.setLayout(formLayout); Composite topForm = FormUtils.createForm(getWidgetFactory(), form); getWidgetFactory().createCLabel(topForm, Messages.getString("EOEntity." + EOEntity.NAME), SWT.NONE); myNameText = new Text(topForm, SWT.BORDER); GridData nameFieldLayoutData = new GridData(GridData.FILL_HORIZONTAL); myNameText.setLayoutData(nameFieldLayoutData); UglyFocusHackWorkaroundListener.addListener(myNameText); getWidgetFactory().createCLabel(topForm, Messages.getString("EOEntity." + EOEntity.EXTERNAL_NAME), SWT.NONE); myExternalNameText = new Text(topForm, SWT.BORDER); GridData externalNameFieldLayoutData = new GridData(GridData.FILL_HORIZONTAL); myExternalNameText.setLayoutData(externalNameFieldLayoutData); UglyFocusHackWorkaroundListener.addListener(myExternalNameText); getWidgetFactory().createCLabel(topForm, Messages.getString("EOEntity." + EOEntity.CLASS_NAME), SWT.NONE); myClassNameText = new Text(topForm, SWT.BORDER); GridData classNameFieldLayoutData = new GridData(GridData.FILL_HORIZONTAL); myClassNameText.setLayoutData(classNameFieldLayoutData); UglyFocusHackWorkaroundListener.addListener(myClassNameText); getWidgetFactory().createCLabel(topForm, Messages.getString("EOEntity." + EOEntity.PARENT), SWT.NONE); Combo parentEntityCombo = new Combo(topForm, SWT.BORDER | SWT.FLAT | SWT.READ_ONLY); myParentEntityComboViewer = new ComboViewer(parentEntityCombo); myParentEntityComboViewer.setLabelProvider(new EOEntityLabelProvider()); myParentEntityComboViewer.setContentProvider(new EOEntityListContentProvider(true, false, false)); GridData entityComboLayoutData = new GridData(GridData.FILL_HORIZONTAL); parentEntityCombo.setLayoutData(entityComboLayoutData); getWidgetFactory().createCLabel(topForm, Messages.getString("EOEntity." + EOEntity.RESTRICTING_QUALIFIER), SWT.NONE); myRestrictingQualifierText = new Text(topForm, SWT.BORDER); GridData restrictingQualifierFieldLayoutData = new GridData(GridData.FILL_HORIZONTAL); myRestrictingQualifierText.setLayoutData(restrictingQualifierFieldLayoutData); UglyFocusHackWorkaroundListener.addListener(myRestrictingQualifierText); getWidgetFactory().createCLabel(topForm, "", SWT.NONE); myAbstractButton = new Button(topForm, SWT.CHECK); myAbstractButton.setText(Messages.getString("EOEntity." + EOEntity.ABSTRACT_ENTITY)); } public void setInput(IWorkbenchPart part, ISelection selection) { if (ComparisonUtils.equals(selection, getSelection())) { return; } super.setInput(part, selection); Object selectedObject = ((IStructuredSelection) selection).getFirstElement(); EOEntity entity = (EOEntity) selectedObject; if (!ComparisonUtils.equals(entity, myEntity)) { disposeBindings(); myEntity = entity; if (myEntity != null) { myBindingContext = new DataBindingContext(); myBindingContext.bindValue(SWTObservables.observeText(myNameText, SWT.Modify), BeansObservables.observeValue(myEntity, EOEntity.NAME), null, null); myBindingContext.bindValue(SWTObservables.observeText(myExternalNameText, SWT.Modify), BeansObservables.observeValue(myEntity, EOEntity.EXTERNAL_NAME), null, null); myBindingContext.bindValue(SWTObservables.observeText(myClassNameText, SWT.Modify), BeansObservables.observeValue(myEntity, EOEntity.CLASS_NAME), null, null); myBindingContext.bindValue(SWTObservables.observeText(myRestrictingQualifierText, SWT.Modify), BeansObservables.observeValue(myEntity, EOEntity.RESTRICTING_QUALIFIER), null, null); myBindingContext.bindValue(SWTObservables.observeSelection(myAbstractButton), BeansObservables.observeValue(myEntity, EOEntity.ABSTRACT_ENTITY), null, new BooleanUpdateValueStrategy()); myParentEntityComboViewer.setInput(myEntity); myParentEntityBinding = new ComboViewerBinding(myParentEntityComboViewer, myEntity, EOEntity.PARENT, myEntity.getModel(), EOModel.ENTITIES, EOEntityListContentProvider.BLANK_ENTITY); } } } protected void disposeBindings() { if (myBindingContext != null) { myBindingContext.dispose(); } if (myParentEntityBinding != null) { myParentEntityBinding.dispose(); } } public void dispose() { super.dispose(); disposeBindings(); } }