| /******************************************************************************* |
| * Copyright (c) 2011-2014 EclipseSource Muenchen GmbH and others. |
| * |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * Alexandra Buzila - initial API and implementation |
| ******************************************************************************/ |
| package org.eclipse.emf.ecp.view.internal.editor.controls; |
| |
| import java.net.URL; |
| |
| import javax.inject.Inject; |
| |
| import org.eclipse.core.databinding.Binding; |
| import org.eclipse.core.databinding.UpdateValueStrategy; |
| import org.eclipse.core.databinding.observable.value.IObservableValue; |
| import org.eclipse.emf.common.notify.AdapterFactory; |
| import org.eclipse.emf.common.notify.Notification; |
| import org.eclipse.emf.ecore.EObject; |
| import org.eclipse.emf.ecp.edit.spi.util.ECPModelElementChangeListener; |
| import org.eclipse.emf.ecp.view.spi.context.ViewModelContext; |
| import org.eclipse.emf.ecp.view.spi.core.swt.SimpleControlSWTControlSWTRenderer; |
| import org.eclipse.emf.ecp.view.spi.model.VControl; |
| import org.eclipse.emf.ecp.view.template.model.VTViewTemplateProvider; |
| import org.eclipse.emf.edit.provider.AdapterFactoryItemDelegator; |
| import org.eclipse.emf.edit.provider.ComposedAdapterFactory; |
| import org.eclipse.emf.edit.provider.ReflectiveItemProviderAdapterFactory; |
| import org.eclipse.emfforms.spi.common.report.ReportService; |
| import org.eclipse.emfforms.spi.core.services.databinding.DatabindingFailedException; |
| import org.eclipse.emfforms.spi.core.services.databinding.DatabindingFailedReport; |
| import org.eclipse.emfforms.spi.core.services.databinding.EMFFormsDatabinding; |
| import org.eclipse.emfforms.spi.core.services.label.EMFFormsLabelProvider; |
| import org.eclipse.jface.databinding.swt.WidgetProperties; |
| import org.eclipse.jface.layout.GridDataFactory; |
| import org.eclipse.jface.layout.GridLayoutFactory; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Control; |
| import org.eclipse.swt.widgets.Display; |
| import org.eclipse.swt.widgets.Label; |
| |
| /** |
| * @author Alexandra Buzila |
| * |
| */ |
| public class ControlRootEClassControl2SWTRenderer extends SimpleControlSWTControlSWTRenderer { |
| |
| /** |
| * Default constructor. |
| * |
| * @param vElement the view model element to be rendered |
| * @param viewContext the view context |
| * @param reportService The {@link ReportService} |
| * @param emfFormsDatabinding The {@link EMFFormsDatabinding} |
| * @param emfFormsLabelProvider The {@link EMFFormsLabelProvider} |
| * @param vtViewTemplateProvider The {@link VTViewTemplateProvider} |
| */ |
| @Inject |
| public ControlRootEClassControl2SWTRenderer(VControl vElement, ViewModelContext viewContext, |
| ReportService reportService, EMFFormsDatabinding emfFormsDatabinding, |
| EMFFormsLabelProvider emfFormsLabelProvider, VTViewTemplateProvider vtViewTemplateProvider) { |
| super(vElement, viewContext, reportService, emfFormsDatabinding, emfFormsLabelProvider, vtViewTemplateProvider); |
| } |
| |
| private Composite labelComposite; |
| private Label label; |
| private ComposedAdapterFactory composedAdapterFactory; |
| private AdapterFactoryItemDelegator adapterFactoryItemDelegator; |
| private Label imageLabel; |
| private ECPModelElementChangeListener modelElementChangeListener; |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @see org.eclipse.emf.ecp.view.spi.core.swt.SimpleControlSWTControlSWTRenderer#createBindings(org.eclipse.swt.widgets.Control, |
| * org.eclipse.emf.ecore.EStructuralFeature.Setting) |
| */ |
| @Override |
| protected Binding[] createBindings(Control control) throws DatabindingFailedException { |
| |
| final Binding[] bindings = new Binding[3]; |
| final IObservableValue value = WidgetProperties.text().observe(label); |
| |
| bindings[0] = getDataBindingContext().bindValue(value, getModelValue(), |
| withPreSetValidation(new UpdateValueStrategy() { |
| |
| @Override |
| public Object convert(Object value) { |
| try { |
| return getModelValue().getValue(); |
| } catch (final DatabindingFailedException ex) { |
| getReportService().report(new DatabindingFailedReport(ex)); |
| return null; |
| } |
| } |
| }), new UpdateValueStrategy() { |
| @Override |
| public Object convert(Object value) { |
| updateChangeListener((EObject) value); |
| return getText(value); |
| } |
| }); |
| final IObservableValue tooltipValue = WidgetProperties.tooltipText().observe(label); |
| bindings[1] = getDataBindingContext().bindValue(tooltipValue, getModelValue(), |
| withPreSetValidation(new UpdateValueStrategy() { |
| |
| @Override |
| public Object convert(Object value) { |
| try { |
| return getModelValue().getValue(); |
| } catch (final DatabindingFailedException ex) { |
| getReportService().report(new DatabindingFailedReport(ex)); |
| return null; |
| } |
| } |
| }), new UpdateValueStrategy() { |
| @Override |
| public Object convert(Object value) { |
| return getText(value); |
| } |
| }); |
| |
| final IObservableValue imageValue = WidgetProperties.image().observe(imageLabel); |
| bindings[2] = getDataBindingContext().bindValue(imageValue, getModelValue(), |
| withPreSetValidation(new UpdateValueStrategy() { |
| |
| @Override |
| public Object convert(Object value) { |
| try { |
| return getModelValue().getValue(); |
| } catch (final DatabindingFailedException ex) { |
| getReportService().report(new DatabindingFailedReport(ex)); |
| return null; |
| } |
| } |
| }), new UpdateValueStrategy() { |
| @Override |
| public Object convert(Object value) { |
| return getImage(value); |
| } |
| }); |
| |
| return bindings; |
| } |
| |
| private Object getImage(Object value) { |
| return Activator.getImage((URL) adapterFactoryItemDelegator.getImage(value)); |
| } |
| |
| private Object getText(Object value) { |
| final String textName = adapterFactoryItemDelegator.getText(value); |
| return textName == null ? "" : textName; //$NON-NLS-1$ |
| } |
| |
| private void updateChangeListener(final EObject value) { |
| if (modelElementChangeListener != null) { |
| if (modelElementChangeListener.getTarget().equals(value)) { |
| return; |
| } |
| modelElementChangeListener.remove(); |
| modelElementChangeListener = null; |
| } |
| |
| modelElementChangeListener = new ECPModelElementChangeListener(value) { |
| |
| @Override |
| public void onChange(Notification notification) { |
| Display.getDefault().syncExec(new Runnable() { |
| |
| @Override |
| public void run() { |
| getDataBindingContext().updateTargets(); |
| labelComposite.layout(); |
| |
| } |
| |
| }); |
| |
| } |
| }; |
| |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @see org.eclipse.emf.ecp.view.spi.core.swt.SimpleControlSWTControlSWTRenderer#createSWTControl(org.eclipse.swt.widgets.Composite) |
| */ |
| @Override |
| protected Control createSWTControl(Composite parent2) { |
| final Composite composite2 = new Composite(parent2, SWT.NONE); |
| composite2.setBackground(parent2.getBackground()); |
| GridLayoutFactory.fillDefaults().numColumns(1).spacing(0, 0).equalWidth(false).applyTo(composite2); |
| |
| labelComposite = new Composite(composite2, SWT.NONE); |
| GridDataFactory.fillDefaults().grab(true, false).align(SWT.FILL, SWT.BEGINNING).applyTo(labelComposite); |
| GridLayoutFactory.fillDefaults().numColumns(2).equalWidth(false).applyTo(labelComposite); |
| labelComposite.setBackground(composite2.getBackground()); |
| |
| // create labels |
| imageLabel = new Label(labelComposite, SWT.NONE); |
| imageLabel.setBackground(labelComposite.getBackground()); |
| label = new Label(labelComposite, SWT.NONE); |
| label.setBackground(labelComposite.getBackground()); |
| GridDataFactory.fillDefaults().grab(true, false).align(SWT.FILL, SWT.BEGINNING).applyTo(label); |
| GridDataFactory.fillDefaults().grab(false, false).align(SWT.FILL, SWT.BEGINNING).hint(20, 20) |
| .applyTo(imageLabel); |
| |
| composedAdapterFactory = new ComposedAdapterFactory(new AdapterFactory[] { |
| new ReflectiveItemProviderAdapterFactory(), |
| new ComposedAdapterFactory(ComposedAdapterFactory.Descriptor.Registry.INSTANCE) }); |
| adapterFactoryItemDelegator = new AdapterFactoryItemDelegator(composedAdapterFactory); |
| |
| return composite2; |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @see org.eclipse.emf.ecp.view.spi.core.swt.SimpleControlSWTRenderer#getUnsetText() |
| */ |
| @Override |
| protected String getUnsetText() { |
| return "Not set"; //$NON-NLS-1$ |
| } |
| |
| @Override |
| public void dispose() { |
| composedAdapterFactory.dispose(); |
| if (modelElementChangeListener != null) { |
| modelElementChangeListener.remove(); |
| } |
| label.dispose(); |
| super.dispose(); |
| } |
| |
| } |