/[schmitzm]/branches/2.1/src/skrueger/geotools/selection/ChartSelectionSynchronizer.java
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revision 134 by mojays, Sat May 30 20:22:00 2009 UTC revision 256 by alfonx, Fri Jul 31 14:43:47 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;      if (!(evt instanceof StyledLayerSelectionEvent))
92      StyledLayerSelectionEvent selEvt = (StyledLayerSelectionEvent) evt;        return;
93      // Only react on own layer and ignore events invoked by      StyledLayerSelectionEvent selEvt = (StyledLayerSelectionEvent) evt;
94      // this component itself      // Only react on own layer and ignore events invoked by
95      if (selEvt.getEmitter() != layerSelModel || selectionChangeCausedByMe)      // this component itself
96          return;      if (selEvt.getEmitter() != layerSelModel || selectionChangeCausedByMe)
97      // Apply new selection on chart (except this event is one of          return;
98      // some more events)      // Apply new selection on chart (except this event is one of
99      Vector<String> newSelection = layerSelModel.getSelection();      // some more events)
100      if (newSelection == null)      Vector<String> newSelection = layerSelModel.getSelection();
101        return;      if (newSelection == null)
102          return;
103      // Avoid event circles in valueChanged(..)  
104      selectionChangeCausedByMe = true;      // Avoid event circles in valueChanged(..)
105        selectionChangeCausedByMe = true;
106      datasetSelModel.setValueIsAdjusting(true);  
107      datasetSelModel.clearSelection();      datasetSelModel.setValueIsAdjusting(true);
108            datasetSelModel.clearSelection();
109      for (String fID : newSelection) {      for (String fID : newSelection)
110        Comparable dataID = mapping.getDataID(fID);        datasetSelModel.setItemSelected(fID, true);
111        if (dataID != null ) {      datasetSelModel.setValueIsAdjusting(false); // event is fired autmatically!
112  //TODO: Fallunterscheidung zwischen den unterschiedlichen DatasetSelectionModel-Typen!!  
113        } else {      // Danger of event circles in valueChanged(..) banned
114            LOGGER.warn("Something that is not visible in the chart should be selected");      selectionChangeCausedByMe = false;
115        }    }
116      }  
117      datasetSelModel.setValueIsAdjusting(false); // event is fired autmatically!    /**
118       * Called when the chart selection is changed by the user. When calling this
119      // Danger of event circles in valueChanged(..) banned     * method changes the selection of the {@link StyledLayerSelectionModel}.
120      selectionChangeCausedByMe = false;     * @param evt an event
121    }     */
122      @Override
123    @Override    public void selectionChanged(DatasetSelectionChangeEvent evt) {
124    public void selectionChanged(DatasetSelectionChangeEvent e) {      // ignore event if it is part of multiple events
125      // TODO Auto-generated method stub      if (evt != null && evt.getSource().getValueIsAdjusting())
126                return;
127    }      // ignore event if it is caused by the ChartSelectionSynchronizer
128          if (selectionChangeCausedByMe)
129            return;
130  }  
131        // Avoid event circles in propertyChange(..)
132        selectionChangeCausedByMe = true;
133    
134        // reset the selection of the DpLayerSelectionModel
135        layerSelModel.setValueIsAdjusting(true);
136        layerSelModel.clearSelection();
137        for (String featureID : datasetSelModel.getSelectedFeatures())
138          layerSelModel.addSelection(featureID);
139        layerSelModel.setValueIsAdjusting(false);
140    
141        // Danger of event circles in propertyChange(..) banned
142        selectionChangeCausedByMe = false;
143      }
144      
145    
146    }
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