//$HeadURL$
/*---------------- FILE HEADER ------------------------------------------
This file is part of deegree.
Copyright (C) 2001-2008 by:
Department of Geography, University of Bonn
http://www.giub.uni-bonn.de/deegree/
lat/lon GmbH
http://www.lat-lon.de
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Contact:
Andreas Poth
lat/lon GmbH
Aennchenstr. 19
53177 Bonn
Germany
E-Mail: poth@lat-lon.de
Prof. Dr. Klaus Greve
Department of Geography
University of Bonn
Meckenheimer Allee 166
53115 Bonn
Germany
E-Mail: greve@giub.uni-bonn.de
---------------------------------------------------------------------------*/
package org.deegree.igeo.modules;
import java.util.List;
import java.util.Map;
import org.deegree.igeo.ApplicationContainer;
import org.deegree.igeo.ChangeListener;
import org.deegree.igeo.ValueChangedEvent;
import org.deegree.igeo.commands.ObjectInfoCommand;
import org.deegree.igeo.commands.RefreshFeatureInfoCommand;
import org.deegree.igeo.commands.SelectFeatureCommand;
import org.deegree.igeo.config.ModuleType;
import org.deegree.igeo.config._ComponentPositionType;
import org.deegree.igeo.dataadapter.DataAccessAdapter;
import org.deegree.igeo.dataadapter.FeatureAdapter;
import org.deegree.igeo.i18n.Messages;
import org.deegree.igeo.mapmodel.Layer;
import org.deegree.igeo.mapmodel.LayerChangedEvent;
import org.deegree.igeo.mapmodel.MapModel;
import org.deegree.igeo.mapmodel.MapModelChangedEvent;
import org.deegree.igeo.mapmodel.MapModelCollection;
import org.deegree.igeo.mapmodel.LayerChangedEvent.LAYER_CHANGE_TYPE;
import org.deegree.igeo.mapmodel.MapModelChangedEvent.CHANGE_TYPE;
import org.deegree.igeo.modules.ActionDescription.ACTIONTYPE;
import org.deegree.igeo.views.DialogFactory;
import org.deegree.igeo.views.FeatureTable;
import org.deegree.kernel.Command;
import org.deegree.kernel.CommandProcessedEvent;
import org.deegree.kernel.CommandProcessedListener;
import org.deegree.model.feature.FeatureCollection;
/**
* Module for handling access to available information of a layer
*
* @author <a href="mailto:poth@lat-lon.de">Andreas Poth</a>
*
* @author last edited by: $Author$
*
* @version $Revision$, $Date$
* @param <T>
*
*/
public class LayerInfoModule<T> extends DefaultModule<T> implements ChangeListener, CommandProcessedListener {
static {
ActionDescription ad1 = new ActionDescription( "open", "opens a dialog showing a layers properties as a table",
null, "open layerinfo dialog", ACTIONTYPE.PushButton, null, null );
moduleCapabilities = new ModuleCapabilities( ad1 );
}
@Override
public void init( ModuleType moduleType, _ComponentPositionType componentPosition, ApplicationContainer<T> appCont,
IModule<T> parent, Map<String, String> initParams ) {
super.init( moduleType, componentPosition, appCont, parent, initParams );
// add this as listener to get informed if a objects has been selected
appCont.getCommandProcessor().addCommandProcessedListener( this );
// add this as listener to get informed if a new layer has been selected in layerlist
MapModelCollection mmc = appContainer.getMapModelCollection();
List<MapModel> mm = mmc.getMapModels();
for ( MapModel mapModel : mm ) {
mapModel.addChangeListener( this );
}
}
/**
* opens the modules view
*
*/
public void open() {
if ( this.componentStateAdapter.isClosed() ) {
MapModel mm = appContainer.getMapModel( null );
List<Layer> layers = mm.getLayersSelectedForAction( MapModel.SELECTION_ACTION );
if ( layers.size() > 0 ) {
if ( layers.get( 0 ).isQueryable() ) {
this.componentStateAdapter.setClosed( false );
createIView();
displayFeatures( layers.get( 0 ) );
} else {
DialogFactory.openWarningDialog( appContainer.getViewPlatform(), null,
"layer can not be queried for attibute values", "warning" );
}
}
}
}
/*
* (non-Javadoc)
*
* @see org.deegree.igeo.ChangeListener#valueChanged(org.deegree.igeo.ValueChangedEvent)
*/
public void valueChanged( ValueChangedEvent event ) {
if ( !this.componentStateAdapter.isClosed() ) {
MapModelChangedEvent mmce = (MapModelChangedEvent) event;
if ( mmce.getChangeType() == CHANGE_TYPE.layerStateChanged ) {
LayerChangedEvent lce = (LayerChangedEvent) mmce.getEmbeddedEvent();
if ( lce != null && lce.getChangeType() == LAYER_CHANGE_TYPE.selectedForChanged ) {
Layer layer = lce.getSource();
if ( layer.getSelectedFor().contains( MapModel.SELECTION_ACTION ) ) {
displayFeatures( layer );
}
}
} else if ( mmce.getChangeType() == CHANGE_TYPE.layerRemoved ) {
( (FeatureTable) getViewForm() ).clear();
}
}
}
private void displayFeatures( Layer layer ) {
if ( layer.isQueryable() ) {
List<DataAccessAdapter> data = layer.getDataAccess();
for ( DataAccessAdapter dataAccessAdapter : data ) {
if ( dataAccessAdapter instanceof FeatureAdapter ) {
FeatureCollection fc = ( (FeatureAdapter) dataAccessAdapter ).getFeatureCollection();
( (FeatureTable) getViewForm() ).setFeatureCollection( layer, fc );
} else {
( (FeatureTable) getViewForm() ).setFeatureCollection( layer, null );
}
}
} else {
( (FeatureTable) getViewForm() ).setFeatureCollection( layer, null );
DialogFactory.openWarningDialog( appContainer.getViewPlatform(), null, Messages.get( "$MD11398",
layer.getTitle() ),
Messages.get( "$MD11399" ) );
}
}
/*
* (non-Javadoc)
*
* @see
* org.deegree.client.presenter.connector.CommandProcessedListener#commandProcessed(org.deegree.client.presenter
* .connector.CommandProcessedEvent)
*/
@SuppressWarnings("unchecked")
public void commandProcessed( CommandProcessedEvent event ) {
Command command = event.getSource();
if ( command.getName().equals( ObjectInfoCommand.commandName ) ) {
// will open the info panel/window if not already opened
if ( this.componentStateAdapter.isClosed() ) {
this.componentStateAdapter.setClosed( false );
createIView();
}
List<FeatureCollection> fc = (List<FeatureCollection>) command.getResult();
for ( FeatureCollection collection : fc ) {
if ( collection != null && collection.size() > 0 ) {
MapModel mm = appContainer.getMapModel( null );
List<Layer> list = mm.getLayersSelectedForAction( MapModel.SELECTION_ACTION );
( (FeatureTable) getViewForm() ).setFeatureCollection( list.get( 0 ), fc.get( 0 ) );
}
}
} else if ( command.getName().equals( SelectFeatureCommand.commandName ) ) {
if ( !this.componentStateAdapter.isClosed() ) {
FeatureCollection fc = (FeatureCollection) command.getResult();
if ( fc != null ) {
( (FeatureTable) getViewForm() ).select( fc );
}
}
} else if ( command.getName().equals( RefreshFeatureInfoCommand.commandName )
&& !this.componentStateAdapter.isClosed() ) {
( (FeatureTable) getViewForm() ).refresh();
}
}
}