Java tutorial
/******************************************************************************* * Copyright (c) 2008, 2011 Obeo. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * Obeo - initial API and implementation *******************************************************************************/ package org.eclipse.emf.eef.runtime.tests.ui.properties.section; import java.util.List; import org.eclipse.core.runtime.IAdaptable; import org.eclipse.emf.common.notify.AdapterFactory; import org.eclipse.emf.ecore.EObject; import org.eclipse.emf.edit.domain.EditingDomain; import org.eclipse.emf.edit.domain.IEditingDomainProvider; import org.eclipse.emf.edit.provider.ComposedAdapterFactory; import org.eclipse.emf.eef.runtime.api.adapters.SemanticAdapter; import org.eclipse.emf.eef.runtime.api.component.IPropertiesEditionComponent; import org.eclipse.emf.eef.runtime.api.notify.IPropertiesEditionEvent; import org.eclipse.emf.eef.runtime.api.notify.IPropertiesEditionListener; import org.eclipse.emf.eef.runtime.context.impl.DomainPropertiesEditionContext; import org.eclipse.emf.eef.runtime.providers.PropertiesEditingProvider; import org.eclipse.emf.eef.runtime.ui.viewers.PropertiesEditionContentProvider; import org.eclipse.emf.eef.runtime.ui.viewers.PropertiesEditionMessageManager; import org.eclipse.emf.eef.runtime.ui.viewers.PropertiesEditionViewer; import org.eclipse.jface.dialogs.IMessageProvider; import org.eclipse.jface.viewers.IFilter; 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.layout.GridLayout; import org.eclipse.swt.widgets.Composite; import org.eclipse.ui.IEditorPart; import org.eclipse.ui.IWorkbenchPart; import org.eclipse.ui.forms.widgets.Form; import org.eclipse.ui.views.properties.tabbed.AbstractPropertySection; import org.eclipse.ui.views.properties.tabbed.ITabbedPropertySheetPageContributor; import org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetPage; /** * @author <a href="mailto:goulwen.lefur@obeo.fr">Goulwen Le Fur</a> */ public class EEFReflectiveEditionSection extends AbstractPropertySection implements IFilter, IPropertiesEditionListener { /** * the property sheet page for this section. */ // private TabbedPropertySheetPage propertySheetPage; /** * the section's parent */ protected Composite parent; /** * The section's viewer */ protected PropertiesEditionViewer viewer; /** * The editingDomain where the viewer must perform editing commands. */ private EditingDomain editingDomain; /** * The current selected object or the first object in the selection when multiple objects are selected. */ protected EObject eObject; /** * The list of current selected objects. */ protected List eObjectList; /** * The form containing the viewer */ private Form scrolledForm; /** * Manager for error message */ private PropertiesEditionMessageManager messageManager; /** * global register edition provider */ private AdapterFactory adapterFactory; private IPropertiesEditionComponent propertiesEditionComponent; /** * @return the associated ProviderEditionProvider */ public PropertiesEditingProvider getProvider(EObject eObject) { return (PropertiesEditingProvider) getAdapterFactory().adapt(eObject, PropertiesEditingProvider.class); } /** * */ private AdapterFactory getAdapterFactory() { if (adapterFactory == null) adapterFactory = new ComposedAdapterFactory(ComposedAdapterFactory.Descriptor.Registry.INSTANCE); return adapterFactory; } /** * @see org.eclipse.ui.views.properties.tabbed.ISection#createControls(org.eclipse.swt.widgets.Composite, * org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetPage) */ public void createControls(Composite parent, TabbedPropertySheetPage aTabbedPropertySheetPage) { super.createControls(parent, aTabbedPropertySheetPage); // this.propertySheetPage = aTabbedPropertySheetPage; this.parent = parent; scrolledForm = getWidgetFactory().createForm(parent); scrolledForm.getBody().setLayout(new GridLayout()); scrolledForm.getBody().setLayoutData(new GridData(GridData.FILL_BOTH)); Composite container = getWidgetFactory().createComposite(scrolledForm.getBody()); GridLayout containerLayout = new GridLayout(); container.setLayout(containerLayout); container.setLayoutData(new GridData(GridData.FILL_BOTH)); getWidgetFactory().decorateFormHeading(scrolledForm); viewer = new PropertiesEditionViewer(container, null, SWT.NONE, 1); viewer.setToolkit(getWidgetFactory()); viewer.setDynamicTabHeader(true); getWidgetFactory().decorateFormHeading(scrolledForm); messageManager = new PropertiesEditionMessageManager() { @Override protected void updateStatus(String message) { if (message != null) scrolledForm.setMessage(message, IMessageProvider.ERROR); else scrolledForm.setMessage(""); //$NON-NLS-1$ } }; } /** * @see org.eclipse.ui.views.properties.tabbed.ISection#setInput(org.eclipse.ui.IWorkbenchPart, * org.eclipse.jface.viewers.ISelection) */ public void setInput(IWorkbenchPart part, ISelection selection) { super.setInput(part, selection); initializeEditingDomain(part); PropertiesEditionContentProvider propertiesEditionContentProvider = new PropertiesEditionContentProvider( getAdapterFactory(), IPropertiesEditionComponent.LIVE_MODE, editingDomain); viewer.setContentProvider(propertiesEditionContentProvider); if (!(selection instanceof IStructuredSelection)) { return; } if (resolveSemanticObject(((IStructuredSelection) selection).getFirstElement()) != null) { EObject newEObject = resolveSemanticObject(((IStructuredSelection) selection).getFirstElement()); if (newEObject != eObject) { eObject = newEObject; if (eObject != null) { disposeComponent(); viewer.setInput( new DomainPropertiesEditionContext(null, null, editingDomain, adapterFactory, eObject)); } } } eObjectList = ((IStructuredSelection) selection).toList(); } private void disposeComponent() { if (propertiesEditionComponent != null) { propertiesEditionComponent.dispose(); } } private void initializeEditingDomain(IWorkbenchPart part) { if (part instanceof ITabbedPropertySheetPageContributor) { ITabbedPropertySheetPageContributor editor = (ITabbedPropertySheetPageContributor) part; if (editor instanceof IEditorPart) { if (editor instanceof IEditingDomainProvider) editingDomain = ((IEditingDomainProvider) editor).getEditingDomain(); else if ((((IEditorPart) editor).getAdapter(IEditingDomainProvider.class)) != null) editingDomain = ((IEditingDomainProvider) ((IEditorPart) editor) .getAdapter(IEditingDomainProvider.class)).getEditingDomain(); else if ((((IEditorPart) editor).getAdapter(EditingDomain.class)) != null) editingDomain = (EditingDomain) ((IEditorPart) editor).getAdapter(EditingDomain.class); } } } /** * {@inheritDoc} * * @see org.eclipse.ui.views.properties.tabbed.AbstractPropertySection#dispose() */ public void dispose() { super.dispose(); disposeComponent(); } /** * @param object * @return */ private EObject resolveSemanticObject(Object object) { if (object instanceof EObject) { return (EObject) object; } else if (object instanceof IAdaptable) { IAdaptable adaptable = (IAdaptable) object; if (adaptable.getAdapter(SemanticAdapter.class) != null) { SemanticAdapter semanticAdapter = (SemanticAdapter) adaptable.getAdapter(SemanticAdapter.class); return semanticAdapter.getEObject(); } else if (adaptable.getAdapter(EObject.class) != null) { return (EObject) adaptable.getAdapter(EObject.class); } } return null; } /** * {@inheritDoc} * * @see org.eclipse.jface.viewers.IFilter#select(java.lang.Object) */ public boolean select(Object toTest) { EObject eObj = resolveSemanticObject(toTest); if (eObj != null) { return getProvider(eObj) != null; } return false; } public void firePropertiesChanged(IPropertiesEditionEvent event) { handleChange(event); } private void handleChange(IPropertiesEditionEvent event) { // do not handle changes if you are in initialization. // if (viewer.isInitializing()) // return; messageManager.processMessage(event); } }