bundles/org.eclipse.emf.ecp.ui.view.swt.di/src/org/eclipse/emf/ecp/ui/view/swt/di/renderer/DIViewSWTRendererService.java

/*******************************************************************************
 * Copyright (c) 2011-2015 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:
 * Eugen Neufeld - initial API and implementation
 ******************************************************************************/
package org.eclipse.emf.ecp.ui.view.swt.di.renderer;

import org.eclipse.emf.ecp.view.spi.context.ViewModelContext;
import org.eclipse.emf.ecp.view.spi.model.VElement;
import org.eclipse.emf.ecp.view.spi.model.VView;
import org.eclipse.emfforms.spi.common.locale.EMFFormsLocaleProvider;
import org.eclipse.emfforms.spi.common.report.ReportService;
import org.eclipse.emfforms.spi.swt.core.AbstractSWTRenderer;
import org.eclipse.emfforms.spi.swt.core.EMFFormsRendererFactory;
import org.eclipse.emfforms.spi.swt.core.EMFFormsRendererService;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceReference;

/**
 * NumberControlSWTRendererService which provides the NumberControlSWTRenderer.
 *
 * @author Eugen Neufeld
 *
 */
public class DIViewSWTRendererService implements EMFFormsRendererService<VView> {

	private EMFFormsRendererFactory rendererFactory;
	private ReportService reportService;
	private ServiceReference<EMFFormsRendererFactory> serviceReference;
	private EMFFormsLocaleProvider localeProvider;

	/**
	 * Activate ViewSWTRendererService.
	 *
	 * @param bundleContext The {@link BundleContext}
	 */
	protected void activate(BundleContext bundleContext) {
		serviceReference = bundleContext.getServiceReference(EMFFormsRendererFactory.class);
		rendererFactory = bundleContext.getService(serviceReference);
	}

	/**
	 * Deactivate ViewSWTRendererService.
	 *
	 * @param bundleContext The {@link BundleContext}
	 */
	protected void deactivate(BundleContext bundleContext) {
		bundleContext.ungetService(serviceReference);
	}

	/**
	 * Called by the initializer to set the ReportService.
	 *
	 * @param reportService The ReportService
	 */
	protected void setReportService(ReportService reportService) {
		this.reportService = reportService;
	}

	/**
	 * Called by the initializer to unset the ReportService.
	 *
	 * @param reportService The ReportService
	 */
	protected void unsetReportService(ReportService reportService) {
		this.reportService = null;
	}

	/**
	 * Called by the initializer to set the EMFFormsLocaleProvider.
	 *
	 * @param localeProvider The EMFFormsLocaleProvider
	 */
	protected void setEMFFormsLocaleProvider(EMFFormsLocaleProvider localeProvider) {
		this.localeProvider = localeProvider;
	}

	/**
	 * Called by the initializer to unset the EMFFormsLocaleProvider.
	 *
	 * @param localeProvider The EMFFormsLocaleProvider
	 */
	protected void unsetEMFFormsLocaleProvider(EMFFormsLocaleProvider localeProvider) {
		this.localeProvider = null;
	}

	/**
	 * {@inheritDoc}
	 *
	 * @see org.eclipse.emfforms.spi.swt.core.EMFFormsRendererService#isApplicable(VElement,ViewModelContext)
	 */
	@Override
	public double isApplicable(VElement vElement, ViewModelContext viewModelContext) {
		if (!VView.class.isInstance(vElement)) {
			return NOT_APPLICABLE;
		}
		return 3d;
	}

	/**
	 * {@inheritDoc}
	 *
	 * @see org.eclipse.emfforms.spi.swt.core.EMFFormsRendererService#getRendererInstance(org.eclipse.emf.ecp.view.spi.model.VElement,
	 *      org.eclipse.emf.ecp.view.spi.context.ViewModelContext)
	 */
	@Override
	public AbstractSWTRenderer<VView> getRendererInstance(VView vElement, ViewModelContext viewModelContext) {
		return new DIViewSWTRenderer(vElement, viewModelContext, reportService, rendererFactory, localeProvider);
	}

}