plugins/org.eclipse.emf.parsley.common/src/org/eclipse/emf/parsley/viewers/ViewerFactory.java

/*******************************************************************************
 * Copyright (c) 2013 RCP Vision (http://www.rcp-vision.com) and others.
 * 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:
 * Lorenzo Bettini - initial API and implementation
 *******************************************************************************/
package org.eclipse.emf.parsley.viewers;


import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.edit.domain.AdapterFactoryEditingDomain;
import org.eclipse.emf.parsley.edit.ui.provider.TableViewerContentProviderFactory;
import org.eclipse.emf.parsley.resource.ResourceLoader;
import org.eclipse.jface.layout.TableColumnLayout;
import org.eclipse.jface.viewers.IBaseLabelProvider;
import org.eclipse.jface.viewers.IContentProvider;
import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.jface.viewers.IStructuredContentProvider;
import org.eclipse.jface.viewers.StructuredViewer;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Composite;

import com.google.inject.Inject;
import com.google.inject.Provider;

/**
 * Factory for viewers for EMF resources.
 * 
 * @author Lorenzo Bettini
 * 
 */
public class ViewerFactory {

	@Inject
	private Provider<IContentProvider> contentProviderProvider;

	@Inject
	private Provider<ILabelProvider> labelProviderProvider;

	@Inject
	private ResourceLoader resourceLoader;

	@Inject
	private Provider<AdapterFactoryEditingDomain> editingDomainProvider;

	@Inject
	private TableViewerColumnBuilder columnBuilder;

	@Inject
	private TableViewerContentProviderFactory tableViewerContentProviderFactory;

	public void initialize(StructuredViewer viewer, Object object) {
		Object input;
		if (object instanceof URI) {
			AdapterFactoryEditingDomain editingDomain = loadResource((URI) object);
			input = editingDomain.getResourceSet();
		} else if (object instanceof AdapterFactoryEditingDomain) {
			AdapterFactoryEditingDomain editingDomain = (AdapterFactoryEditingDomain) object;
			input = editingDomain.getResourceSet();
		} else {
			input = object;
		}
		initialize(viewer, input, contentProviderProvider.get(), labelProviderProvider.get());
	}

	public void initialize(StructuredViewer viewer, Object input,
			IContentProvider contentProvider, IBaseLabelProvider labelProvider) {
		viewer.setContentProvider(contentProvider);
		if (labelProvider != null) {
			viewer.setLabelProvider(labelProvider);
		}
		viewer.setInput(input);
	}

	public TableViewer createTableViewer(Composite parent, int style, EClass type) {
		TableViewer tableViewer = createTableViewer(parent, style);
		buildColumns(tableViewer, type);
		return tableViewer;
	}

	public void buildColumns(TableViewer tableViewer, EClass eClass) {
		buildColumns(tableViewer, eClass, tableViewerContentProviderFactory.createTableViewerContentProvider(eClass));
	}

	private void buildColumns(TableViewer tableViewer, EClass eClass, 
			IStructuredContentProvider contentProvider) {
		tableViewer.setContentProvider(contentProvider);
		columnBuilder.buildTableViewer(tableViewer, eClass);
	}

	private AdapterFactoryEditingDomain loadResource(URI resourceURI) {
		AdapterFactoryEditingDomain editingDomain = editingDomainProvider.get();
		resourceLoader.getResource(editingDomain, resourceURI);
		return editingDomain;
	}

	private TableViewer createTableViewer(Composite parent, int style) {
		Composite viewerContainer = new Composite(parent, SWT.BORDER);
		TableColumnLayout layout = new TableColumnLayout();
		viewerContainer.setLayout(layout);
		return new TableViewer(viewerContainer, style);
	}

}