Java tutorial
/** * Copyright (C) 2012 BonitaSoft S.A. * BonitaSoft, 31 rue Gustave Eiffel - 38000 Grenoble * 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 2.0 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 org.bonitasoft.studio.connector.model.definition.wizard; import java.util.HashSet; import java.util.Set; import org.bonitasoft.studio.common.NamingUtils; import org.bonitasoft.studio.connector.model.definition.ConnectorDefinition; import org.bonitasoft.studio.connector.model.definition.ConnectorDefinitionFactory; import org.bonitasoft.studio.connector.model.definition.ConnectorDefinitionPackage; import org.bonitasoft.studio.connector.model.definition.Output; import org.bonitasoft.studio.connector.model.definition.wizard.support.OutputNameEditingSupport; import org.bonitasoft.studio.connector.model.definition.wizard.support.OutputTypeEditingSupport; import org.bonitasoft.studio.connector.model.i18n.Messages; import org.eclipse.emf.databinding.EMFDataBindingContext; import org.eclipse.emf.databinding.EMFObservables; import org.eclipse.jface.databinding.viewers.ViewersObservables; import org.eclipse.jface.databinding.wizard.WizardPageSupport; import org.eclipse.jface.layout.GridDataFactory; import org.eclipse.jface.layout.GridLayoutFactory; import org.eclipse.jface.viewers.ArrayContentProvider; import org.eclipse.jface.viewers.ColumnLabelProvider; import org.eclipse.jface.viewers.ColumnViewerEditorActivationEvent; import org.eclipse.jface.viewers.ColumnViewerEditorActivationListener; import org.eclipse.jface.viewers.ColumnViewerEditorDeactivationEvent; import org.eclipse.jface.viewers.ColumnWeightData; import org.eclipse.jface.viewers.ISelection; import org.eclipse.jface.viewers.ISelectionChangedListener; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.SelectionChangedEvent; import org.eclipse.jface.viewers.StructuredSelection; import org.eclipse.jface.viewers.TableLayout; import org.eclipse.jface.viewers.TableViewer; import org.eclipse.jface.viewers.TableViewerColumn; import org.eclipse.jface.wizard.WizardPage; import org.eclipse.swt.SWT; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Composite; /** * @author Romain Bioteau * */ public class OutputsWizardPage extends WizardPage implements ISelectionChangedListener { private static final int DEFAULT_BUTTON_WIDTH_HINT = 85; private final ConnectorDefinition definition; private EMFDataBindingContext context; private WizardPageSupport pageSupport; private Button removeButton; private Button downButton; private Button upButton; public OutputsWizardPage(ConnectorDefinition definition) { super(OutputsWizardPage.class.getName()); setTitle(Messages.connectorOutputTitle); setDescription(Messages.connectorOutputDesc); this.definition = definition; } @Override public void dispose() { super.dispose(); if (context != null) { context.dispose(); } if (pageSupport != null) { pageSupport.dispose(); } } private String generateOutputName() { Set<String> names = new HashSet<String>(); for (Output o : definition.getOutput()) { names.add(o.getName()); } return NamingUtils.generateNewName(names, Messages.defaultOutputName); } /* (non-Javadoc) * @see org.eclipse.jface.dialogs.IDialogPage#createControl(org.eclipse.swt.widgets.Composite) */ @Override public void createControl(Composite parent) { context = new EMFDataBindingContext(); final Composite mainComposite = new Composite(parent, SWT.NONE); mainComposite.setLayoutData(GridDataFactory.fillDefaults().grab(true, true).create()); mainComposite.setLayout(GridLayoutFactory.fillDefaults().numColumns(2).margins(15, 15).create()); final TableViewer outputsViewer = new TableViewer(mainComposite, SWT.BORDER | SWT.FULL_SELECTION | SWT.MULTI); outputsViewer.getTable().setLayoutData(GridDataFactory.fillDefaults().grab(true, true).create()); outputsViewer.getTable().setHeaderVisible(true); outputsViewer.getTable().setLinesVisible(true); outputsViewer.addSelectionChangedListener(this); outputsViewer.setContentProvider(new ArrayContentProvider()); TableLayout layout = new TableLayout(); layout.addColumnData(new ColumnWeightData(30)); layout.addColumnData(new ColumnWeightData(70)); outputsViewer.getTable().setLayout(layout); outputsViewer.getColumnViewerEditor() .addEditorActivationListener(new ColumnViewerEditorActivationListener() { @Override public void beforeEditorDeactivated(ColumnViewerEditorDeactivationEvent event) { } @Override public void beforeEditorActivated(ColumnViewerEditorActivationEvent event) { } @Override public void afterEditorDeactivated(ColumnViewerEditorDeactivationEvent event) { outputsViewer.refresh(); } @Override public void afterEditorActivated(ColumnViewerEditorActivationEvent event) { } }); TableViewerColumn outputNameColumn = new TableViewerColumn(outputsViewer, SWT.FILL); outputNameColumn.getColumn().setText(Messages.name); outputNameColumn.setEditingSupport(new OutputNameEditingSupport(outputsViewer, definition, context)); outputNameColumn.setLabelProvider(new ColumnLabelProvider() { @Override public String getText(Object element) { return ((Output) element).getName(); } }); TableViewerColumn outputTypeColumn = new TableViewerColumn(outputsViewer, SWT.FILL); outputTypeColumn.getColumn().setText(Messages.type); outputTypeColumn.setEditingSupport(new OutputTypeEditingSupport(outputsViewer, context)); outputTypeColumn.setLabelProvider(new ColumnLabelProvider() { @Override public String getText(Object element) { return ((Output) element).getType(); } }); context.bindValue(ViewersObservables.observeInput(outputsViewer), EMFObservables.observeValue(definition, ConnectorDefinitionPackage.Literals.CONNECTOR_DEFINITION__OUTPUT)); final Composite buttonComposite = new Composite(mainComposite, SWT.NONE); buttonComposite.setLayoutData(GridDataFactory.fillDefaults().grab(false, true).create()); buttonComposite .setLayout(GridLayoutFactory.fillDefaults().numColumns(1).margins(0, 0).spacing(0, 3).create()); final Button addButton = new Button(buttonComposite, SWT.FLAT); addButton.setText(Messages.add); addButton.setLayoutData(GridDataFactory.fillDefaults().grab(true, false) .hint(DEFAULT_BUTTON_WIDTH_HINT, SWT.DEFAULT).create()); addButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { Output input = ConnectorDefinitionFactory.eINSTANCE.createOutput(); input.setName(generateOutputName()); input.setType(String.class.getName()); definition.getOutput().add(input); outputsViewer.refresh(); outputsViewer.editElement(input, 0); } }); upButton = new Button(buttonComposite, SWT.FLAT); upButton.setText(Messages.up); upButton.setLayoutData(GridDataFactory.fillDefaults().grab(true, false) .hint(DEFAULT_BUTTON_WIDTH_HINT, SWT.DEFAULT).create()); upButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { Output selectedInput = (Output) ((IStructuredSelection) outputsViewer.getSelection()) .getFirstElement(); int index = definition.getOutput().indexOf(selectedInput); if (index > 0) { definition.getOutput().move(index - 1, selectedInput); } outputsViewer.refresh(); } }); downButton = new Button(buttonComposite, SWT.FLAT); downButton.setText(Messages.down); downButton.setLayoutData(GridDataFactory.fillDefaults().grab(true, false) .hint(DEFAULT_BUTTON_WIDTH_HINT, SWT.DEFAULT).create()); downButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { Output selectedInput = (Output) ((IStructuredSelection) outputsViewer.getSelection()) .getFirstElement(); int index = definition.getOutput().indexOf(selectedInput); if (index < definition.getOutput().size() - 1) { definition.getOutput().move(index + 1, selectedInput); } } }); removeButton = new Button(buttonComposite, SWT.FLAT); removeButton.setText(Messages.remove); removeButton.setLayoutData(GridDataFactory.fillDefaults().grab(true, false) .hint(DEFAULT_BUTTON_WIDTH_HINT, SWT.DEFAULT).create()); removeButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { definition.getOutput().removeAll(((IStructuredSelection) outputsViewer.getSelection()).toList()); outputsViewer.refresh(); } }); updateButtons(new StructuredSelection()); pageSupport = WizardPageSupport.create(this, context); setControl(mainComposite); } @Override public void selectionChanged(SelectionChangedEvent event) { updateButtons(event.getSelection()); } private void updateButtons(ISelection selection) { if (upButton != null && !upButton.isDisposed()) { upButton.setEnabled(!selection.isEmpty()); } if (downButton != null && !downButton.isDisposed()) { downButton.setEnabled(!selection.isEmpty()); } if (removeButton != null && !removeButton.isDisposed()) { removeButton.setEnabled(!selection.isEmpty()); } } }