PatientSelectionStatus.java

/******************************************************************************* 
 * Copyright (c) 2011, Marco Descher
 * 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: 
 * 	Marco Descher - initial implementation 
 * 
 ******************************************************************************/
package ch.elexis.core.ui.commands.sourceprovider;

import java.util.HashMap;
import java.util.Map;

import org.eclipse.ui.AbstractSourceProvider;
import org.eclipse.ui.ISources;

import ch.elexis.core.data.events.ElexisEventDispatcher;

/**
 * This class provides a sourceProvider for Eclipse command evaluation. It can be used to check
 * whether a Patient is currently selected in the system. According to this command contributions
 * can be toggled on/off.
 * 
 * The value is set within the {@link ElexisEventDispatcher} class.
 * 
 * @author Marco Descher
 */
public class PatientSelectionStatus extends AbstractSourceProvider {
	
	public final static String PATIENTACTIVE =
		"ch.elexis.commands.sourceprovider.patientSelectionActive";
	public final static String TRUE = "TRUE";
	public final static String FALSE = "FALSE";
	private boolean enabled = false;
	
	public PatientSelectionStatus(){}
	
	@Override
	public void dispose(){}
	
	@SuppressWarnings({
		"unchecked", "rawtypes"
	})
	@Override
	public Map getCurrentState(){
		Map map = new HashMap();
		String value = enabled ? TRUE : FALSE;
		map.put(PATIENTACTIVE, value);
		return map;
	}
	
	@Override
	public String[] getProvidedSourceNames(){
		return new String[] {
			PATIENTACTIVE
		};
	}
	
	public void setState(boolean state){
		String value = FALSE;
		if (state == true) {
			value = TRUE;
		} else {
			value = FALSE;
		}
		fireSourceChanged(ISources.WORKBENCH, PATIENTACTIVE, value);
	}
	
}