PreferenceConstants.java

/*******************************************************************************
 * Copyright (c) 2006-2011, Daniel Lutz and Elexis
 * 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:
 *    Daniel Lutz - initial implementation
 *    Niklaus Giger - added fourth element & utility procedures
 *    
 *******************************************************************************/

package ch.elexis.extdoc.preferences;

import ch.elexis.core.data.activator.CoreHub;

public class PreferenceConstants {
	// retour kompatibel
	public static final String BASIS_PFAD1 = "ch.elexis.externe_dokumente/BasisPfad"; //$NON-NLS-1$l
	public static final String BASIS_PFAD2 = "ch.elexis.externe_dokumente/BasisPfad2"; //$NON-NLS-1$
	public static final String BASIS_PFAD3 = "ch.elexis.externe_dokumente/BasisPfad3"; //$NON-NLS-1$
	public static final String BASIS_PFAD4 = "ch.elexis.externe_dokumente/BasisPfad4"; //$NON-NLS-1$
	public static final String NAME_PFAD1 = "ch.elexis.externe_dokumente/NamePfad"; //$NON-NLS-1$
	public static final String NAME_PFAD2 = "ch.elexis.externe_dokumente/NamePfad2"; //$NON-NLS-1$
	public static final String NAME_PFAD3 = "ch.elexis.externe_dokumente/NamePfad3"; //$NON-NLS-1$
	public static final String NAME_PFAD4 = "ch.elexis.externe_dokumente/NamePfad4"; //$NON-NLS-1$
	public static final String SELECTED_PATHS = "ch.elexis.externe_dokumente/SelectedPaths"; //$NON-NLS-1$
	public static final String CONCERNS = "ch.elexis.externe_dokumente/Concerns"; //$NON-NLS-1$
	public static final String EMAIL_PROGRAM = "ch.elexis.externe_dokumente/Email_app"; //$NON-NLS-1$
	
	public static class PathElement {
		public String prefName;
		public String name;
		public String prefBaseDir;
		public String baseDir;
		
		PathElement(String prefsName, String prefsBaseDirName){
			prefName = prefsName;
			prefBaseDir = prefsBaseDirName;
			name = CoreHub.localCfg.get(prefName, ""); //$NON-NLS-1$
			baseDir = CoreHub.localCfg.get(prefsBaseDirName, ""); //$NON-NLS-1$
		}
	}
	
	public static PathElement[] getPrefenceElements(){
		PathElement prefElems[] =
			{
				new PathElement(PreferenceConstants.NAME_PFAD1, PreferenceConstants.BASIS_PFAD1),
				new PathElement(PreferenceConstants.NAME_PFAD2, PreferenceConstants.BASIS_PFAD2),
				new PathElement(PreferenceConstants.NAME_PFAD3, PreferenceConstants.BASIS_PFAD3),
				new PathElement(PreferenceConstants.NAME_PFAD4, PreferenceConstants.BASIS_PFAD4),
			};
		return prefElems;
	}
	
	public static String[] getActiveBasePaths(){
		String[] paths = new String[4];
		paths[0] = CoreHub.localCfg.get(PreferenceConstants.BASIS_PFAD1, ""); //$NON-NLS-1$
		paths[1] = CoreHub.localCfg.get(PreferenceConstants.BASIS_PFAD2, ""); //$NON-NLS-1$
		paths[2] = CoreHub.localCfg.get(PreferenceConstants.BASIS_PFAD3, ""); //$NON-NLS-1$
		paths[3] = CoreHub.localCfg.get(PreferenceConstants.BASIS_PFAD4, ""); //$NON-NLS-1$
		for (int j = 0; j < paths.length; j++)
			if (!pathIsSelected(j))
				paths[j] = null;
		return paths;
	}
	
	private static int selected = -1;
	
	private static void ensureValueLoaded(){
		if (selected == -1)
			selected = Integer.parseInt(CoreHub.userCfg.get(PreferenceConstants.SELECTED_PATHS, "0")); //$NON-NLS-1$	
	}
	
	/***
	 * Tells whether the user has the path activated or not
	 * 
	 * @param whichOne
	 * @return true or false
	 */
	public static boolean pathIsSelected(int whichOne){
		ensureValueLoaded();
		return (selected & (1 << whichOne)) != 0;
	}
	
	/***
	 * Writes selection to user configuration
	 */
	
	public static void saveSelected(){
		ensureValueLoaded();
		CoreHub.userCfg.set(PreferenceConstants.SELECTED_PATHS, Integer.toString(selected));
		
	}
	
	/**
	 * Sets (but does not save) the active paths
	 * 
	 * @param whichOne
	 * @param yes
	 */
	public static void pathSetSelected(int whichOne, boolean yes){
		ensureValueLoaded();
		int mask = 1 << whichOne;
		if (yes)
			selected |= mask;
		else
			selected &= ~mask;
	}
}