Java tutorial
/* * SelectObjectsDialog.java * * This file is part of the STS-Tool project. * Copyright (c) 2011-2012 "University of Trento - DISI" All rights reserved. * * Is strictly forbidden to remove this copyright notice from this source code. * * Disclaimer of Warranty: * STS-Tool (this software) is provided "as-is" and without warranty of any kind, * express, implied or otherwise, including without limitation, any warranty of * merchantability or fitness for a particular purpose. * In no event shall the copyright holder or 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 program is free software; you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License version 3 * as published by the Free Software Foundation with the addition of the * following permission added to Section 15 as permitted in Section 7(a): * FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY * "University of Trento - DISI","University of Trento - DISI" DISCLAIMS THE * WARRANTY OF NON INFRINGEMENT OF THIRD PARTY RIGHTS. * * See the GNU Affero General Public License for more details. * You should have received a copy of the GNU Affero General Public License * along with this program; if not, see http://www.gnu.org/licenses or write to * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, * Boston, MA, 02110-1301 USA, or download the license from the following URL: * http://www.sts-tool.eu/License.php * * For more information, please contact STS-Tool group at this * address: ststool@disi.unitn.it * */ package eu.aniketos.wp1.ststool.diagram.custom.utility; import java.util.ArrayList; import java.util.List; import org.eclipse.draw2d.geometry.Dimension; import org.eclipse.jface.dialogs.Dialog; import org.eclipse.jface.dialogs.IDialogConstants; import org.eclipse.jface.viewers.DoubleClickEvent; import org.eclipse.jface.viewers.IDoubleClickListener; import org.eclipse.jface.viewers.LabelProvider; import org.eclipse.jface.viewers.StructuredSelection; import org.eclipse.jface.viewers.ViewerSorter; import org.eclipse.swt.SWT; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.graphics.Point; import org.eclipse.swt.layout.FormAttachment; import org.eclipse.swt.layout.FormData; import org.eclipse.swt.layout.FormLayout; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Shell; public class SelectObjectsDialog<T> extends Dialog { private String elementsListLabel = "Objects"; private String selectedElementsListLabel = "Objects"; private ColoredListViewer objectsList; private ColoredListViewer selectedObjectsList; private List<T> objects; private List<T> selectedObjects; private ViewerSorter sorter; private Dimension shellInitalSize = null; private LabelProvider labelProvider = new LabelProvider() { @Override public String getText(Object element) { return element.toString(); } }; public void setLabelProvider(LabelProvider labelProvider) { this.labelProvider = labelProvider; } public void setSorter(ViewerSorter sorter) { this.sorter = sorter; if (objectsList != null) objectsList.setSorter(sorter); if (selectedObjectsList != null) selectedObjectsList.setSorter(sorter); } /** * Create the dialog. * * @param parentShell */ public SelectObjectsDialog(Shell parentShell, List<T> objects, List<T> selectedObjects, String elementsListLabel, String selectedElementsListLabel) { this(parentShell, objects, selectedObjects, elementsListLabel, selectedElementsListLabel, null); } public SelectObjectsDialog(Shell parentShell, List<T> objects, List<T> selectedObjects, String elementsListLabel, String selectedElementsListLabel, Dimension shellInitialSize) { super(parentShell); this.shellInitalSize = shellInitialSize; //setShellStyle(SWT.CLOSE | SWT.RESIZE | SWT.TITLE); setShellStyle(SWT.RESIZE | SWT.APPLICATION_MODAL); this.objects = new ArrayList<T>(); for (T o : objects) { this.objects.add(o); } if (selectedObjects == null) { this.selectedObjects = new ArrayList<T>(); } else { this.selectedObjects = selectedObjects; } if (this.selectedObjects.size() > 0) this.objects.removeAll(selectedObjects); if (elementsListLabel != null) this.elementsListLabel = elementsListLabel; if (selectedElementsListLabel != null) this.selectedElementsListLabel = selectedElementsListLabel; } /** * Create contents of the dialog. * * @param parent */ @Override protected Control createDialogArea(Composite parent) { Composite container = (Composite) super.createDialogArea(parent); container.setLayout(new FormLayout()); Label lblObjectsName = new Label(container, SWT.CENTER); FormData fd_lblObjectsName = new FormData(); fd_lblObjectsName.top = new FormAttachment(0, 10); fd_lblObjectsName.right = new FormAttachment(50, -50); fd_lblObjectsName.left = new FormAttachment(0, 10); lblObjectsName.setLayoutData(fd_lblObjectsName); lblObjectsName.setText(elementsListLabel + " List"); Label lblSelObjectsName = new Label(container, SWT.CENTER); FormData fd_lblSelObjectsName = new FormData(); fd_lblSelObjectsName.top = new FormAttachment(0, 10); fd_lblSelObjectsName.left = new FormAttachment(50, 50); fd_lblSelObjectsName.right = new FormAttachment(100, -10); lblSelObjectsName.setLayoutData(fd_lblSelObjectsName); lblSelObjectsName.setText(selectedElementsListLabel); objectsList = new ColoredListViewer<T>(container); FormData fd_actorsList = new FormData(); fd_actorsList.top = new FormAttachment(lblObjectsName, 10); fd_actorsList.bottom = new FormAttachment(100, -10); fd_actorsList.right = new FormAttachment(50, -50); fd_actorsList.left = new FormAttachment(0, 10); objectsList.getComposite().setLayoutData(fd_actorsList); objectsList.setLabelProvider(labelProvider); if (sorter != null) objectsList.setSorter(sorter); objectsList.setInput(objects); objectsList.addDoubleClickListener(new IDoubleClickListener() { @Override public void doubleClick(DoubleClickEvent event) { if (event.getSelection() instanceof StructuredSelection) { StructuredSelection ss = (StructuredSelection) event.getSelection(); add((T) ss.getFirstElement()); } } }); selectedObjectsList = new ColoredListViewer<T>(container); FormData fd_selectedActorList = new FormData(); fd_selectedActorList.top = new FormAttachment(lblSelObjectsName, 10); fd_selectedActorList.left = new FormAttachment(50, 50); fd_selectedActorList.right = new FormAttachment(100, -10); fd_selectedActorList.bottom = new FormAttachment(100, -10); selectedObjectsList.getComposite().setLayoutData(fd_selectedActorList); selectedObjectsList.setLabelProvider(labelProvider); if (sorter != null) selectedObjectsList.setSorter(sorter); selectedObjectsList.setInput(selectedObjects); selectedObjectsList.addDoubleClickListener(new IDoubleClickListener() { @Override public void doubleClick(DoubleClickEvent event) { if (event.getSelection() instanceof StructuredSelection) { StructuredSelection ss = (StructuredSelection) event.getSelection(); remove((T) ss.getFirstElement()); } } }); /*selectedObjectsList = new ListViewer(container, SWT.BORDER | SWT.V_SCROLL | SWT.MULTI); org.eclipse.swt.widgets.List selectedActorsListlist = selectedObjectsList.getList(); FormData fd_selectedActorList = new FormData(); fd_selectedActorList.top = new FormAttachment(lblSelObjectsName, 10); fd_selectedActorList.left = new FormAttachment(50, 50); fd_selectedActorList.right = new FormAttachment(100, -10); fd_selectedActorList.bottom = new FormAttachment(100, -10); selectedActorsListlist.setLayoutData(fd_selectedActorList); selectedObjectsList.setContentProvider(new ArrayContentProvider()); selectedObjectsList.setLabelProvider(labelProvider); selectedObjectsList.setInput(selectedObjects); selectedObjectsList.addDoubleClickListener(new IDoubleClickListener() { @Override public void doubleClick(DoubleClickEvent event) { if (event.getSelection() instanceof StructuredSelection) { StructuredSelection ss = (StructuredSelection) event.getSelection(); remove((T) ss.getFirstElement()); } } });*/ Button butAddAll = new Button(container, SWT.NONE); FormData fd_butAddAll = new FormData(); fd_butAddAll.left = new FormAttachment(50, -40); fd_butAddAll.width = 80; fd_butAddAll.top = new FormAttachment(50, 10); butAddAll.setLayoutData(fd_butAddAll); butAddAll.setText("Add All"); butAddAll.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { add((List<T>) objectsList.getInput()); } }); Button butRemAll = new Button(container, SWT.NONE); FormData fd_butRemAll = new FormData(); fd_butRemAll.left = new FormAttachment(50, -40); fd_butRemAll.width = 80; fd_butRemAll.top = new FormAttachment(butAddAll, 10); butRemAll.setLayoutData(fd_butRemAll); butRemAll.setText("Remove all"); butRemAll.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { remove((List<T>) selectedObjectsList.getInput()); } }); Button butRem = new Button(container, SWT.NONE); FormData fd_butRem = new FormData(); fd_butRem.width = 80; fd_butRem.left = new FormAttachment(50, -40); fd_butRem.bottom = new FormAttachment(butAddAll, -10); fd_butRem.width = 80; butRem.setLayoutData(fd_butRem); butRem.setText("<"); butRem.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { if (selectedObjectsList.getSelection() instanceof StructuredSelection) { StructuredSelection ss = (StructuredSelection) selectedObjectsList.getSelection(); remove((List<T>) ss.toList()); } } }); Button butAdd = new Button(container, SWT.NONE); butAdd.setText(">"); FormData fd_butAdd = new FormData(); fd_butAdd.bottom = new FormAttachment(butRem, -10); fd_butAdd.width = 80; fd_butAdd.left = new FormAttachment(50, -40); butAdd.setLayoutData(fd_butAdd); butAdd.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { if (objectsList.getSelection() instanceof StructuredSelection) { StructuredSelection ss = (StructuredSelection) objectsList.getSelection(); add((List<T>) ss.toList()); } } }); return container; } private void add(List<T> a) { selectedObjects.addAll(a); objects.removeAll(a); updateList(); } private void remove(List<T> a) { objects.addAll(a); selectedObjects.removeAll(a); updateList(); } private void add(T a) { selectedObjects.add(a); objects.remove(a); updateList(); } private void remove(T a) { objects.add(a); selectedObjects.remove(a); updateList(); } private void updateList() { selectedObjectsList.setInput(selectedObjects); objectsList.setInput(objects); } /** * Create contents of the button bar. * * @param parent */ @Override protected void createButtonsForButtonBar(Composite parent) { createButton(parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL, true); createButton(parent, IDialogConstants.CANCEL_ID, IDialogConstants.CANCEL_LABEL, false); } /** * Return the initial size of the dialog. */ @Override protected Point getInitialSize() { if (shellInitalSize != null) { return new Point(shellInitalSize.width, shellInitalSize.height); } return new Point(450, 300); } @Override public int open() { return super.open(); } public List<T> getSelectedObjects() { return selectedObjects; } }