/[schmitzm]/branches/2.1/src/skrueger/geotools/selection/ChartSelectionSynchronizer.java
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trunk/src/skrueger/geotools/selection/ChartSelectionSynchronizer.java revision 134 by mojays, Sat May 30 20:22:00 2009 UTC branches/1.0-gt2-2.6/src/skrueger/geotools/selection/ChartSelectionSynchronizer.java revision 487 by alfonx, Tue Oct 20 18:33:53 2009 UTC
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1  /** SCHMITZM - This file is part of the java library of Martin O.J. Schmitz (SCHMITZM)  /*******************************************************************************
2     * Copyright (c) 2009 Martin O. J. Schmitz.
3      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.   *
4      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.   * This file is part of the SCHMITZM library - a collection of utility
5      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., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA   * classes based on Java 1.6, focusing (not only) on Java Swing
6     * and the Geotools library.
7      Diese Bibliothek ist freie Software; Sie dürfen sie unter den Bedingungen der GNU Lesser General Public License, wie von der Free Software Foundation veröffentlicht, weiterverteilen und/oder modifizieren; entweder gemäß Version 2.1 der Lizenz oder (nach Ihrer Option) jeder späteren Version.   *
8      Diese Bibliothek wird in der Hoffnung weiterverbreitet, daß sie nützlich sein wird, jedoch OHNE IRGENDEINE GARANTIE, auch ohne die implizierte Garantie der MARKTREIFE oder der VERWENDBARKEIT FÜR EINEN BESTIMMTEN ZWECK. Mehr Details finden Sie in der GNU Lesser General Public License.   * The SCHMITZM project is hosted at:
9      Sie sollten eine Kopie der GNU Lesser General Public License zusammen mit dieser Bibliothek erhalten haben; falls nicht, schreiben Sie an die Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA.   * http://wald.intevation.org/projects/schmitzm/
10   **/   *
11     * This program is free software; you can redistribute it and/or
12  package skrueger.geotools.selection;   * modify it under the terms of the GNU Lesser General Public License
13     * as published by the Free Software Foundation; either version 3
14  import java.beans.PropertyChangeEvent;   * of the License, or (at your option) any later version.
15  import java.beans.PropertyChangeListener;   *
16  import java.util.Vector;   * This program is distributed in the hope that it will be useful,
17     * but WITHOUT ANY WARRANTY; without even the implied warranty of
18  import javax.swing.JTable;   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19  import javax.swing.ListSelectionModel;   * GNU General Public License for more details.
20  import javax.swing.event.ListSelectionListener;   *
21  import javax.swing.plaf.basic.BasicTreeUI.SelectionModelPropertyChangeHandler;   * You should have received a copy of the GNU Lesser General Public License (license.txt)
22     * along with this program; if not, write to the Free Software
23  import org.jfree.chart.JFreeChart;   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
24  import org.jfree.data.general.Dataset;   * or try this link: http://www.gnu.org/licenses/lgpl.html
25  import org.jfree.data.general.SeriesDataset;   *
26  import org.jfree.data.xy.XYSeriesCollection;   * Contributors:
27     *     Martin O. J. Schmitz - initial API and implementation
28  import schmitzm.geotools.gui.FeatureCollectionTableModel;   *     Stefan A. Krüger - additional utility classes
29  import schmitzm.jfree.chart.renderer.SelectionRenderer;   ******************************************************************************/
30  import schmitzm.jfree.chart.selection.DatasetSelectionListener;  package skrueger.geotools.selection;
31  import schmitzm.jfree.chart.selection.DatasetSelectionModel;  
32  import schmitzm.jfree.chart.selection.DatasetSelectionModelProvider;  import java.beans.PropertyChangeEvent;
33  import schmitzm.jfree.chart.selection.DatasetSelectionChangeEvent;  import java.beans.PropertyChangeListener;
34  import schmitzm.jfree.feature.Feature2DatasetItemDatasetGroup;  import java.util.Vector;
35    
36  /**  import org.jfree.data.general.Dataset;
37   * This class keeps the selection of a {@link Dataset} (based on feature  
38   * attributes) synchronized with the {@link StyledLayerSelectionModel} of a layer.  import schmitzm.jfree.chart.renderer.SelectionRenderer;
39   * This is done by implementing:  import schmitzm.jfree.chart.selection.DatasetSelectionChangeEvent;
40   * <ul>  import schmitzm.jfree.chart.selection.DatasetSelectionListener;
41   * <li>a {@link PropertyChangeListener} which listens to the  import schmitzm.jfree.chart.selection.DatasetSelectionModel;
42   * {@link StyledLayerSelectionModel} and accordingly changes the {@link SelectionRenderer}  import schmitzm.jfree.chart.selection.DatasetSelectionModelProvider;
43   * selection</li>  import schmitzm.jfree.feature.FeatureDatasetSelectionModel;
44   * <li>a {@link DatasetSelectionModel} which listens to the {@link SelectionRenderer} and  
45   * accordingly changes the {@link StyledLayerSelectionModel} selection</li>  /**
46   * </ul>   * This class keeps the selection of a {@link Dataset} (based on feature
47   * After creating, the instance of this synchronizer must be added as listener   * attributes) synchronized with the {@link StyledLayerSelectionModel} of a layer.
48   * to both, the {@link StyledLayerSelectionModel} and the chart's   * This is done by implementing:
49   * {@link DatasetSelectionModel} (e.g. the renderer).   * <ul>
50   * @see DatasetSelectionModelProvider   * <li>a {@link PropertyChangeListener} which listens to the
51   * @author <a href="mailto:[email protected]">Martin Schmitz</a>   * {@link StyledLayerSelectionModel} and accordingly changes the {@link SelectionRenderer}
52   */   * selection</li>
53  public class ChartSelectionSynchronizer extends StyledLayerSelectionModelSynchronizer<StyledFeatureLayerSelectionModel>   * <li>a {@link DatasetSelectionModel} which listens to the {@link SelectionRenderer} and
54                                          implements DatasetSelectionListener {   * accordingly changes the {@link StyledLayerSelectionModel} selection</li>
55     * </ul>
56    /** Holds the chart datset to keep synchronized with the layer selection model. */   * After creating, the instance of this synchronizer must be added as listener
57    protected DatasetSelectionModel<?> datasetSelModel = null;   * to both, the {@link StyledLayerSelectionModel} and the chart's
58    /** Hold the mapping between feature IDs and dataset items. */   * {@link DatasetSelectionModel} (e.g. the renderer).
59    protected Feature2DatasetItemDatasetGroup<?> mapping = null;   * @see DatasetSelectionModelProvider
60       * @author <a href="mailto:[email protected]">Martin Schmitz</a>
61    /**   */
62     * Creates a new synchronizer.  public class ChartSelectionSynchronizer extends StyledLayerSelectionModelSynchronizer<StyledFeatureLayerSelectionModel>
63     * @param layerSelModel                                          implements DatasetSelectionListener {
64     *             layer selection model to keep synchronized with the dataset  
65     *             selection model    /** Holds the chart datset to keep synchronized with the layer selection model. */
66     * @param datasetSelModel    protected FeatureDatasetSelectionModel<?,?,?> datasetSelModel = null;
67     *            dataset selection model to keep synchronized with the layer  
68     *            selection model    /**
69     */     * Creates a new synchronizer.
70    public ChartSelectionSynchronizer(StyledFeatureLayerSelectionModel layerSelModel, DatasetSelectionModel<?> datasetSelModel) {     * @param layerSelModel
71      super(layerSelModel);     *             layer selection model to keep synchronized with the dataset
72      // the dataset selection model must provide a mapping     *             selection model
73      // to the feature IDs     * @param datasetSelModel
74      if ( datasetSelModel.getDataset() == null ||     *            dataset selection model to keep synchronized with the layer
75           !(datasetSelModel.getDataset().getGroup() instanceof Feature2DatasetItemDatasetGroup) )     *            selection model
76        throw new UnsupportedOperationException("Dataset must provide a Feature2DatasetItemDatasetGroup as DatasetGroup.");     */
77      this.datasetSelModel = datasetSelModel;    public ChartSelectionSynchronizer(StyledFeatureLayerSelectionModel layerSelModel, FeatureDatasetSelectionModel<?,?,?> datasetSelModel) {
78      this.mapping         = (Feature2DatasetItemDatasetGroup<?>)datasetSelModel.getDataset().getGroup();      super(layerSelModel);
79    }      this.datasetSelModel = datasetSelModel;
80      }
81    /**  
82     * Called by {@link StyledLayerSelectionModel} when a the selection on other    /**
83     * selection components (map, table, ...) has changed. When calling this     * Called by {@link StyledLayerSelectionModel} when the selection on other
84     * method changes the dataset selection according to the     * selection components (map, table, ...) has changed. When calling this
85     * {@link StyledLayerSelectionModel} selection.     * method changes the dataset selection according to the
86     * @param evt an event     * {@link StyledLayerSelectionModel} selection.
87     */     * @param evt an event
88    @Override     */
89    public void propertyChange(PropertyChangeEvent evt) {    @Override
90      if (!(evt instanceof StyledLayerSelectionEvent))    public void propertyChange(PropertyChangeEvent evt) {
91        return;          
92      StyledLayerSelectionEvent selEvt = (StyledLayerSelectionEvent) evt;          if (!isEnabled()) {
93      // Only react on own layer and ignore events invoked by                  return;
94      // this component itself          }
95      if (selEvt.getEmitter() != layerSelModel || selectionChangeCausedByMe)            
96          return;      if (!(evt instanceof StyledLayerSelectionEvent))
97      // Apply new selection on chart (except this event is one of        return;
98      // some more events)      StyledLayerSelectionEvent selEvt = (StyledLayerSelectionEvent) evt;
99      Vector<String> newSelection = layerSelModel.getSelection();      // Only react on own layer and ignore events invoked by
100      if (newSelection == null)      // this component itself
101        return;      if (selEvt.getEmitter() != layerSelModel || selectionChangeCausedByMe)
102            return;
103      // Avoid event circles in valueChanged(..)      // Apply new selection on chart (except this event is one of
104      selectionChangeCausedByMe = true;      // some more events)
105        Vector<String> newSelection = layerSelModel.getSelection();
106      datasetSelModel.setValueIsAdjusting(true);      if (newSelection == null)
107      datasetSelModel.clearSelection();        return;
108        
109      for (String fID : newSelection) {      // Avoid event circles in valueChanged(..)
110        Comparable dataID = mapping.getDataID(fID);      selectionChangeCausedByMe = true;
111        if (dataID != null ) {  
112  //TODO: Fallunterscheidung zwischen den unterschiedlichen DatasetSelectionModel-Typen!!      datasetSelModel.setValueIsAdjusting(true);
113        } else {      datasetSelModel.clearSelection();
114            LOGGER.warn("Something that is not visible in the chart should be selected");      for (String fID : newSelection)
115        }        datasetSelModel.setItemSelected(fID, true);
116      }      datasetSelModel.setValueIsAdjusting(false); // event is fired autmatically!
117      datasetSelModel.setValueIsAdjusting(false); // event is fired autmatically!  
118        // Danger of event circles in valueChanged(..) banned
119      // Danger of event circles in valueChanged(..) banned      selectionChangeCausedByMe = false;
120      selectionChangeCausedByMe = false;    }
121    }  
122      /**
123    @Override     * Called when the chart selection is changed by the user. When calling this
124    public void selectionChanged(DatasetSelectionChangeEvent e) {     * method changes the selection of the {@link StyledLayerSelectionModel}.
125      // TODO Auto-generated method stub     * @param evt an event
126           */
127    }    @Override
128        public void selectionChanged(DatasetSelectionChangeEvent evt) {
129        // ignore event if it is part of multiple events
130  }      if (evt != null && evt.getSource().getValueIsAdjusting())
131            return;
132        // ignore event if it is caused by the ChartSelectionSynchronizer
133        if (selectionChangeCausedByMe)
134            return;
135    
136        // Avoid event circles in propertyChange(..)
137        selectionChangeCausedByMe = true;
138    
139        // reset the selection of the DpLayerSelectionModel
140        layerSelModel.setValueIsAdjusting(true);
141        layerSelModel.clearSelection();
142        for (String featureID : datasetSelModel.getSelectedFeatures())
143          layerSelModel.addSelection(featureID);
144        layerSelModel.setValueIsAdjusting(false);
145    
146        // Danger of event circles in propertyChange(..) banned
147        selectionChangeCausedByMe = false;
148      }
149      
150    
151    }
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