1 /*

     2 * Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). 

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:

    15 *

    16 * Wrapper class for last known location list

    17 *

    18 */

    19 package com.nokia.tracebuilder.view;

    20 

    21 import java.util.Iterator;

    22 

    23 import com.nokia.tracebuilder.engine.LocationProperties;

    24 import com.nokia.tracebuilder.engine.LastKnownLocation;

    25 import com.nokia.tracebuilder.engine.LastKnownLocationList;

    26 import com.nokia.tracebuilder.engine.LastKnownLocationListListener;

    27 

    28 /**

    29  * Wrapper class for last known location list

    30  * 

    31  */

    32 final class LastKnownLocationListWrapper extends ListWrapper implements

    33 		LastKnownLocationListListener {

    34 

    35 	/**

    36 	 * Location list

    37 	 */

    38 	private LastKnownLocationList locationList;

    39 

    40 	/**

    41 	 * Constructor

    42 	 * 

    43 	 * @param list

    44 	 *            the location list

    45 	 * @param parent

    46 	 *            the parent wrapper

    47 	 * @param updater

    48 	 *            the update notifier

    49 	 */

    50 	LastKnownLocationListWrapper(LastKnownLocationList list,

    51 			WrapperBase parent, WrapperUpdater updater) {

    52 		super(parent, updater);

    53 		this.locationList = list;

    54 		createChildren();

    55 		locationList.addLocationListListener(this);

    56 	}

    57 

    58 	/**

    59 	 * Creates the location wrappers

    60 	 */

    61 	private void createChildren() {

    62 		for (LocationProperties loc : locationList) {

    63 			LastKnownLocationWrapper wrapper = new LastKnownLocationWrapper(

    64 					(LastKnownLocation) loc, this, getUpdater());

    65 			add(wrapper);

    66 		}

    67 	}

    68 

    69 	/**

    70 	 * Gets the location list

    71 	 * 

    72 	 * @return the location list

    73 	 */

    74 	LastKnownLocationList getLocationList() {

    75 		return locationList;

    76 	}

    77 

    78 	/**

    79 	 * Updates the location list

    80 	 * 

    81 	 * @param list

    82 	 *            the new location list

    83 	 */

    84 	void updateLocationList(LastKnownLocationList list) {

    85 		locationList.removeLocationListListener(this);

    86 		clear();

    87 		locationList = list;

    88 		if (locationList != null) {

    89 			locationList.addLocationListListener(this);

    90 			createChildren();

    91 		}

    92 	}

    93 

    94 	/*

    95 	 * (non-Javadoc)

    96 	 * 

    97 	 * @see com.nokia.tracebuilder.view.ListWrapper#delete()

    98 	 */

    99 	@Override

   100 	void delete() {

   101 		super.delete();

   102 		locationList.removeLocationListListener(this);

   103 	}

   104 

   105 	/*

   106 	 * (non-Javadoc)

   107 	 * 

   108 	 * @see com.nokia.tracebuilder.engine.LastKnownLocationListListener#

   109 	 *      locationAdded(com.nokia.tracebuilder.engine.LastKnownLocation)

   110 	 */

   111 	public void locationAdded(LastKnownLocation location) {

   112 		LastKnownLocationWrapper wrapper = new LastKnownLocationWrapper(

   113 				location, this, getUpdater());

   114 		boolean inView = false;

   115 		boolean hidden = false;

   116 		if (!hasChildren()) {

   117 			hidden = true;

   118 		}

   119 		// If one of the existing locations is shown in view, or there are no

   120 		// existing locations the new one is also marked as shown in view

   121 		if (isInView()) {

   122 			if (hasChildren()) {

   123 				Iterator<WrapperBase> itr = getVisibleWrappers();

   124 				if (itr.next().isInView()) {

   125 					inView = true;

   126 				}

   127 			} else {

   128 				inView = true;

   129 			}

   130 		}

   131 		add(wrapper);

   132 		wrapper.setInView(inView);

   133 		if (hidden) {

   134 			TraceWrapper parent = (TraceWrapper) getParent();

   135 			parent.showLastKnownLocationList();

   136 			getUpdater().queueUpdate(parent);

   137 		} else {

   138 			getUpdater().queueUpdate(this);

   139 		}

   140 	}

   141 

   142 	/*

   143 	 * (non-Javadoc)

   144 	 * 

   145 	 * @see com.nokia.tracebuilder.engine.LastKnownLocationListListener#

   146 	 *      locationRemoved(com.nokia.tracebuilder.engine.LastKnownLocation)

   147 	 */

   148 	public void locationRemoved(LastKnownLocation location) {

   149 		LastKnownLocationWrapper wrapper = (LastKnownLocationWrapper) location

   150 				.getViewReference();

   151 		remove(wrapper);

   152 		if (!hasChildren()) {

   153 			TraceWrapper parent = (TraceWrapper) getParent();

   154 			parent.hideLastKnownLocationList();

   155 			getUpdater().queueUpdate(parent);

   156 		} else {

   157 			getUpdater().queueUpdate(this);

   158 		}

   159 	}

   160 

   161 }