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.Input; import org.bonitasoft.studio.connector.model.definition.wizard.support.DefaultValueEditingSupport; import org.bonitasoft.studio.connector.model.definition.wizard.support.InputMandatoryEditingSupport; import org.bonitasoft.studio.connector.model.definition.wizard.support.InputNameEditingSupport; import org.bonitasoft.studio.connector.model.definition.wizard.support.InputTypeEditingSupport; 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 InputsWizardPage 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 upButton; private Button downButton; private Button removeButton; public InputsWizardPage(ConnectorDefinition definition) { super(InputsWizardPage.class.getName()); setTitle(Messages.connectorInputTitle); setDescription(Messages.connectorInputDesc); this.definition = definition; } @Override public void dispose() { super.dispose(); if (context != null) { context.dispose(); } if (pageSupport != null) { pageSupport.dispose(); } } private String generateInputName() { Set<String> names = new HashSet<String>(); for (Input i : definition.getInput()) { names.add(i.getName()); } return NamingUtils.generateNewName(names, Messages.defaultInputName); } /* (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 inputsViewer = new TableViewer(mainComposite, SWT.BORDER | SWT.FULL_SELECTION | SWT.MULTI); inputsViewer.getTable().setLayoutData(GridDataFactory.fillDefaults().grab(true, true).create()); inputsViewer.getTable().setHeaderVisible(true); inputsViewer.getTable().setLinesVisible(true); inputsViewer.addSelectionChangedListener(this); inputsViewer.setContentProvider(new ArrayContentProvider()); TableLayout layout = new TableLayout(); layout.addColumnData(new ColumnWeightData(25)); layout.addColumnData(new ColumnWeightData(20)); layout.addColumnData(new ColumnWeightData(30)); layout.addColumnData(new ColumnWeightData(25)); inputsViewer.getTable().setLayout(layout); inputsViewer.getColumnViewerEditor() .addEditorActivationListener(new ColumnViewerEditorActivationListener() { @Override public void beforeEditorDeactivated(ColumnViewerEditorDeactivationEvent event) { } @Override public void beforeEditorActivated(ColumnViewerEditorActivationEvent event) { } @Override public void afterEditorDeactivated(ColumnViewerEditorDeactivationEvent event) { inputsViewer.refresh(); } @Override public void afterEditorActivated(ColumnViewerEditorActivationEvent event) { } }); TableViewerColumn inputNameColumn = new TableViewerColumn(inputsViewer, SWT.FILL); inputNameColumn.getColumn().setText(Messages.name); inputNameColumn.setEditingSupport(new InputNameEditingSupport(inputsViewer, definition, context)); inputNameColumn.setLabelProvider(new ColumnLabelProvider() { @Override public String getText(Object element) { return ((Input) element).getName(); } }); TableViewerColumn mandatoryColumn = new TableViewerColumn(inputsViewer, SWT.FILL); mandatoryColumn.getColumn().setText(Messages.mandatory); mandatoryColumn.setEditingSupport(new InputMandatoryEditingSupport(inputsViewer, context)); mandatoryColumn.setLabelProvider(new ColumnLabelProvider() { @Override public String getText(Object element) { if (((Input) element).isMandatory()) { return Messages.mandatory; } else { return Messages.optional; } } }); TableViewerColumn inputTypeColumn = new TableViewerColumn(inputsViewer, SWT.FILL); inputTypeColumn.getColumn().setText(Messages.type); inputTypeColumn.setEditingSupport(new InputTypeEditingSupport(inputsViewer, context)); inputTypeColumn.setLabelProvider(new ColumnLabelProvider() { @Override public String getText(Object element) { return ((Input) element).getType(); } }); TableViewerColumn defautltValueColumn = new TableViewerColumn(inputsViewer, SWT.FILL); defautltValueColumn.getColumn().setText(Messages.defaultValue); defautltValueColumn.setEditingSupport(new DefaultValueEditingSupport(inputsViewer, context)); defautltValueColumn.setLabelProvider(new ColumnLabelProvider() { @Override public String getText(Object element) { return ((Input) element).getDefaultValue(); } }); context.bindValue(ViewersObservables.observeInput(inputsViewer), EMFObservables.observeValue(definition, ConnectorDefinitionPackage.Literals.CONNECTOR_DEFINITION__INPUT)); 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) { Input input = ConnectorDefinitionFactory.eINSTANCE.createInput(); input.setName(generateInputName()); input.setType(String.class.getName()); definition.getInput().add(input); inputsViewer.refresh(); inputsViewer.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) { Input selectedInput = (Input) ((IStructuredSelection) inputsViewer.getSelection()) .getFirstElement(); int index = definition.getInput().indexOf(selectedInput); if (index > 0) { definition.getInput().move(index - 1, selectedInput); } inputsViewer.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) { Input selectedInput = (Input) ((IStructuredSelection) inputsViewer.getSelection()) .getFirstElement(); int index = definition.getInput().indexOf(selectedInput); if (index < definition.getInput().size() - 1) { definition.getInput().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.getInput().removeAll(((IStructuredSelection) inputsViewer.getSelection()).toList()); inputsViewer.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()); } } }