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.attribute; 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.GridData; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Combo; import org.eclipse.swt.widgets.Composite; import org.eclipse.ui.IWorkbenchPart; import org.objectstyle.wolips.baseforplugins.util.ComparisonUtils; import org.objectstyle.wolips.eomodeler.Activator; import org.objectstyle.wolips.eomodeler.Messages; import org.objectstyle.wolips.eomodeler.core.model.AbstractEOArgument; import org.objectstyle.wolips.eomodeler.core.model.EOAttribute; import org.objectstyle.wolips.eomodeler.core.model.EOAttributePath; import org.objectstyle.wolips.eomodeler.core.model.EOModel; import org.objectstyle.wolips.eomodeler.editors.entity.EOEntityListContentProvider; import org.objectstyle.wolips.eomodeler.utils.BooleanUpdateValueStrategy; import org.objectstyle.wolips.eomodeler.utils.ComboViewerBinding; public class EOAttributeBasicEditorSection extends AbstractEOArgumentBasicEditorSection { private ComboViewer _prototypeComboViewer; private ComboViewerBinding _prototypeBinding; private Button _primaryKeyButton; private Button _classPropertyButton; private Button _lockingButton; @Override protected void _addSettings(Composite settings) { _primaryKeyButton = new Button(settings, SWT.TOGGLE | SWT.FLAT); _primaryKeyButton.setToolTipText(Messages.getString("EOAttribute." + EOAttribute.PRIMARY_KEY)); _primaryKeyButton.setImage(Activator.getDefault().getImageRegistry().get(Activator.PRIMARY_KEY_ICON)); _classPropertyButton = new Button(settings, SWT.TOGGLE | SWT.FLAT); _classPropertyButton.setToolTipText(Messages.getString("EOAttribute." + EOAttribute.CLASS_PROPERTY)); _classPropertyButton.setImage(Activator.getDefault().getImageRegistry().get(Activator.CLASS_PROPERTY_ICON)); _lockingButton = new Button(settings, SWT.TOGGLE | SWT.FLAT); _lockingButton.setToolTipText(Messages.getString("EOAttribute." + EOAttribute.USED_FOR_LOCKING)); _lockingButton.setImage(Activator.getDefault().getImageRegistry().get(Activator.LOCKING_ICON)); } protected void _addComponents(Composite parent) { getWidgetFactory().createCLabel(parent, Messages.getString("EOAttribute." + EOAttribute.PROTOTYPE), SWT.NONE); Combo prototypeCombo = new Combo(parent, SWT.BORDER | SWT.FLAT | SWT.READ_ONLY); _prototypeComboViewer = new ComboViewer(prototypeCombo); _prototypeComboViewer.setLabelProvider(new EOPrototypeListLabelProvider()); _prototypeComboViewer.setContentProvider(new EOPrototypeListContentProvider()); GridData prototypeComboLayoutData = new GridData(GridData.FILL_HORIZONTAL); prototypeCombo.setLayoutData(prototypeComboLayoutData); } protected void _argumentChanged(AbstractEOArgument argument) { EOAttribute attribute = (EOAttribute) argument; if (attribute != null) { _prototypeComboViewer.setInput(attribute); _prototypeBinding = new ComboViewerBinding(_prototypeComboViewer, attribute, EOAttribute.PROTOTYPE, attribute.getEntity().getModel(), EOModel.ENTITIES, EOEntityListContentProvider.BLANK_ENTITY); getBindingContext().bindValue(SWTObservables.observeSelection(_primaryKeyButton), BeansObservables.observeValue(attribute, EOAttribute.PRIMARY_KEY), null, new BooleanUpdateValueStrategy()); getBindingContext().bindValue(SWTObservables.observeSelection(_classPropertyButton), BeansObservables.observeValue(attribute, EOAttribute.CLASS_PROPERTY), null, new BooleanUpdateValueStrategy()); getBindingContext().bindValue(SWTObservables.observeSelection(_lockingButton), BeansObservables.observeValue(attribute, EOAttribute.USED_FOR_LOCKING), null, new BooleanUpdateValueStrategy()); } } protected void disposeBindings() { if (_prototypeBinding != null) { _prototypeBinding.dispose(); } super.disposeBindings(); } public void setInput(IWorkbenchPart part, ISelection selection) { if (!ComparisonUtils.equals(selection, getSelection())) { EOAttribute attribute = null; Object selectedObject = ((IStructuredSelection) selection).getFirstElement(); super.setInput(part, selection); if (selectedObject instanceof EOAttribute) { attribute = (EOAttribute) selectedObject; } else if (selectedObject instanceof EOAttributePath) { attribute = ((EOAttributePath) selectedObject).getChildAttribute(); } setArgument(attribute); } } }