bundles/common/org.eclipse.apogy.common.emf.ui.emfforms/src/org/eclipse/apogy/common/emf/ui/emfforms/services/UnitCompositeRendererService.java

/*******************************************************************************
 * Copyright (c) 2018 Agence spatiale canadienne / Canadian Space Agency
 * 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:
 *     Pierre Allard - initial API and implementation
 *     Regent L'Archeveque
 *     Olivier L. Larouche
 * 
 * SPDX-License-Identifier: EPL-1.0
 *******************************************************************************/
package org.eclipse.apogy.common.emf.ui.emfforms.services;

import org.eclipse.apogy.common.emf.ApogyCommonEMFFacade;
import org.eclipse.apogy.common.emf.ui.emfforms.renderers.UnitControlCompositeRenderer;
import org.eclipse.core.databinding.property.value.IValueProperty;
import org.eclipse.emf.ecore.EAttribute;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.ecp.view.spi.context.ViewModelContext;
import org.eclipse.emf.ecp.view.spi.model.VControl;
import org.eclipse.emf.ecp.view.spi.model.VElement;
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.swt.core.AbstractSWTRenderer;
import org.eclipse.emfforms.spi.swt.core.di.EMFFormsDIRendererService;

public class UnitCompositeRendererService implements EMFFormsDIRendererService<VControl> {

	private EMFFormsDatabinding databindingService;
	private ReportService reportService;

	/**
	 * Called by the initializer to set the EMFFormsDatabinding.
	 *
	 * @param databindingService The EMFFormsDatabinding
	 */
	protected void setEMFFormsDatabinding(EMFFormsDatabinding databindingService) {
		this.databindingService = databindingService;
	}

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

	@Override
	public double isApplicable(VElement vElement, ViewModelContext viewModelContext) {
		if (!VControl.class.isInstance(vElement)) {
			return NOT_APPLICABLE;
		}
		final VControl control = (VControl) vElement;
		IValueProperty<?, ?> valueProperty;
		try {
			valueProperty = this.databindingService.getValueProperty(control.getDomainModelReference(),
					viewModelContext.getDomainModel());
		} catch (final DatabindingFailedException ex) {
			this.reportService.report(new DatabindingFailedReport(ex));
			return NOT_APPLICABLE;
		}
		EStructuralFeature eStructuralFeature = EStructuralFeature.class.cast(valueProperty.getValueType());

		if (eStructuralFeature instanceof EAttribute) {
			/* Check if units or range properties are defined. */
			if (ApogyCommonEMFFacade.INSTANCE.getEngineeringUnits(eStructuralFeature) != null
					|| ApogyCommonEMFFacade.INSTANCE.getOutOfRangeMinValue(eStructuralFeature) != null
					|| ApogyCommonEMFFacade.INSTANCE.getOutOfRangeMaxValue(eStructuralFeature) != null
					|| ApogyCommonEMFFacade.INSTANCE.getAlarmMinValue(eStructuralFeature) != null
					|| ApogyCommonEMFFacade.INSTANCE.getAlarmMaxValue(eStructuralFeature) != null
					|| ApogyCommonEMFFacade.INSTANCE.getWarningMinValue(eStructuralFeature) != null
					|| ApogyCommonEMFFacade.INSTANCE.getWarningMaxValue(eStructuralFeature) != null) {
				return 10;
			}
		}
		return NOT_APPLICABLE;
	}

	@Override
	public Class<? extends AbstractSWTRenderer<VControl>> getRendererClass() {
		return UnitControlCompositeRenderer.class;
	}
}