geotools/selection/FeatureMapLayerSelectionSynchronizer.java

/*******************************************************************************
 * Copyright (c) 2009 Martin O. J. Schmitz.
 * 
 * This file is part of the SCHMITZM library - a collection of utility 
 * classes based on Java 1.6, focusing (not only) on Java Swing 
 * and the Geotools library.
 * 
 * The SCHMITZM project is hosted at:
 * http://wald.intevation.org/projects/schmitzm/
 * 
 * This program 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 3
 * of the License, or (at your option) any later version.
 * 
 * This program 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 General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License (license.txt)
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 * or try this link: http://www.gnu.org/licenses/lgpl.html
 * 
 * Contributors:
 *     Martin O. J. Schmitz - initial API and implementation
 *     Stefan A. Krüger - additional utility classes
 ******************************************************************************/
/** 
 Copyright 2008 Stefan Alfons Krüger 

 atlas-framework - This file is part of the Atlas Framework

 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., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA

 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.
 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.
 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.
 **/
package skrueger.geotools.selection;

import java.awt.RenderingHints;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.io.File;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;
import java.util.Vector;

import javax.swing.JTable;
import javax.swing.ListSelectionModel;
import javax.swing.event.ListSelectionListener;

import org.geotools.feature.FeatureCollection;
import org.geotools.feature.FeatureIterator;
import org.geotools.map.MapLayer;
import org.geotools.renderer.GTRenderer;
import org.geotools.renderer.label.LabelCacheImpl;
import org.geotools.renderer.lite.StreamingRenderer;
import org.geotools.styling.FeatureTypeStyle;
import org.geotools.styling.Style;
import org.geotools.styling.visitor.DuplicatingStyleVisitor;
import org.opengis.feature.simple.SimpleFeature;
import org.opengis.feature.simple.SimpleFeatureType;
import org.opengis.filter.identity.FeatureId;

import schmitzm.geotools.FilterUtil;
import schmitzm.geotools.GTUtil;
import schmitzm.geotools.gui.JMapPane;
import schmitzm.geotools.map.event.FeatureSelectedEvent;
import schmitzm.geotools.map.event.JMapPaneEvent;
import schmitzm.geotools.map.event.JMapPaneListener;
import schmitzm.geotools.styling.StylingUtil;
import skrueger.geotools.MapPaneToolBar;
import skrueger.geotools.StyledFeaturesInterface;
import skrueger.geotools.StyledLayerInterface;

/**
 * This class keeps the selection of a (feature) {@link JTable} synchronized
 * with the {@link StyledLayerSelectionModel} of a layer. This is done by
 * implementing:
 * <ul>
 * <li>a {@link PropertyChangeListener} which listens to the
 * {@link StyledLayerSelectionModel} and accordingly changes the {@link JTable}
 * selection</li>
 * <li>a {@link ListSelectionListener} which listens to the {@link JTable} and
 * accordingly changes the {@link StyledLayerSelectionModel} selection</li>
 * </ul>
 * After creating, the instance of this synchronizer must be added as listener
 * to both, the {@link StyledLayerSelectionModel} and the table's
 * {@link ListSelectionModel}.
 * 
 * @author <a href="mailto:[email protected]">Martin Schmitz</a>
 *         (University of Bonn/Germany)
 */
public class FeatureMapLayerSelectionSynchronizer extends
                StyledLayerSelectionModelSynchronizer<StyledFeatureLayerSelectionModel>
                implements JMapPaneListener {
        public static final String SELECTION_STYLING = "SELECTION";
        /**
         * Holds the {@link MapLayer} to keep synchronized with the layer selection
         * model.
         */
        protected final MapLayer mapLayer;
        protected final StyledFeaturesInterface<?> styledLayer;
        protected final JMapPane mapPane;
        private final MapPaneToolBar toolBar;
        private final HashMap<Object, Object> defaultGTRenderingHints;

        /**
         * Creates a new synchronizer
         * 
         * @param layerSelModel
         *            layer selection model to keep synchronized with the
         *            {@link MapLayer}
         * 
         * @param mapLayer
         *            {@link MapLayer} to keep synchronized with.
         */
        public FeatureMapLayerSelectionSynchronizer(
                        StyledFeatureLayerSelectionModel layerSelModel,
                        StyledFeaturesInterface<?> styledLayer, MapLayer mapLayer,
                        JMapPane mapPane, MapPaneToolBar toolBar,
                        HashMap<Object, Object> defaultGTRenderingHints) {

                super(layerSelModel);
                this.styledLayer = styledLayer;

                this.mapLayer = mapLayer;
                this.mapPane = mapPane;
                this.toolBar = toolBar;
                if (defaultGTRenderingHints != null)
                        this.defaultGTRenderingHints = defaultGTRenderingHints;
                else
                        this.defaultGTRenderingHints = new HashMap<Object, Object>();
        }

        /**
         * Called by {@link StyledLayerSelectionModel} when a the selection on other
         * selection components (map, chart, ...) has changed. When calling this
         * 
         * method changes the {@link MapLayer} selection according to the
         * {@link StyledLayerSelectionModel} selection.
         * 
         * @param evt
         *            an event
         */
        @Override
        public void propertyChange(PropertyChangeEvent evt) {

                if (!isEnabled())
                        return;

                if (!(evt instanceof StyledLayerSelectionEvent))
                        return;
                StyledLayerSelectionEvent selEvt = (StyledLayerSelectionEvent) evt;
                // Only react on own layer and ignore events invoked by
                // this component itself
                if (selEvt.getEmitter() != layerSelModel || selectionChangeCausedByMe)
                        return;
                // Apply new selection on table (except this event is one of
                // some more events)
                Vector<String> newSelection = layerSelModel.getSelection();
                if (newSelection == null)
                        return;

                // Avoid event circles in valueChanged(..)
                selectionChangeCausedByMe = true;

                changeLayerStyle(newSelection);

                // Danger of event circles in valueChanged(..) banned
                selectionChangeCausedByMe = false;
        }

        /**
         * Changes the Style of the {@link MapLayer} to reflect changes of the
         * selection.
         * 
         * @param newSelection
         *            A {@link Vector} of SimpleFeature-IDs that are selected.
         */
        private void changeLayerStyle(final Vector<String> newSelection) {
                try {

                        Style originalStyle = mapLayer.getStyle();
                        if (newSelection.isEmpty()) {

                                // Check if the Style contains a SELECTION FTS

                                FeatureTypeStyle[] clone = originalStyle.featureTypeStyles()
                                                .toArray(new FeatureTypeStyle[] {}).clone();

                                for (FeatureTypeStyle fts : clone) {
                                        if (fts.getName() != null
                                                        && fts.getName().equals(SELECTION_STYLING)) {
                                                originalStyle.featureTypeStyles().remove(fts);

                                                replaceRenderer();
                                                // mapPane.refresh();

                                                return;
                                        }
                                }

                        } else {
                                LOGGER.debug("SELECTION .. change style");

                                // We take Style from the MapLayer that is displayed at the
                                // moment. We do not use the styledLayer.getStyle, because in
                                // the atlas, this always return the default style, but
                                // additional styles might be selected.
                                // Taking the style from the mapLayer indicated, that we have to
                                // remove any selection rules first.

                                FeatureTypeStyle selectionFTStyle = StylingUtil
                                                .createSelectionStyle(styledLayer.getGeoObject());

                                selectionFTStyle.setName(SELECTION_STYLING);

                                /**
                                 * 
                                 * Add a Filter to the selectionMapStyle, so that it is only
                                 * used on objects that are selected. <br/>
                                 * To optimize rendering speed, the filter checks whether more
                                 * than half of the features are selected. If so, the filter is
                                 * inverted to be shorter.
                                 * 
                                 */

                                final FeatureCollection<SimpleFeatureType, SimpleFeature> featureCollectionFiltered = styledLayer
                                                .getFeatureCollectionFiltered();
                                if (newSelection.size() > featureCollectionFiltered.size() / 2) {
                                        FeatureIterator<SimpleFeature> iterator = featureCollectionFiltered
                                                        .features();
                                        Set<FeatureId> antiFids = new HashSet<FeatureId>();
                                        try {
                                                while (iterator.hasNext()) {
                                                        SimpleFeature next = iterator.next();
                                                        if (!newSelection.contains(next.getID()))
                                                                antiFids.add(FilterUtil.FILTER_FAC2
                                                                                .featureId(next.getID()));
                                                }

                                                selectionFTStyle.rules().get(0).setFilter(
                                                                FilterUtil.FILTER_FAC2
                                                                                .not(FilterUtil.FILTER_FAC2
                                                                                                .id(antiFids)));

                                        } finally {
                                                featureCollectionFiltered.close(iterator);
                                        }
                                } else {
                                        Set<FeatureId> fids = new HashSet<FeatureId>();
                                        for (String fid : newSelection) {
                                                fids.add(FilterUtil.FILTER_FAC2.featureId(fid));
                                        }

                                        selectionFTStyle.rules().get(0).setFilter(
                                                        FilterUtil.FILTER_FAC2.id(fids));
                                }

                                // Maybe there has already been another selection
                                // FeatureTypeStyle... Let's replace it...
                                boolean foundAndReplaced = false;
                                for (FeatureTypeStyle fts : originalStyle.featureTypeStyles()) {
                                        if (fts.getName() != null
                                                        && fts.getName().equals(SELECTION_STYLING)) {
                                                foundAndReplaced = true;
                                                fts.rules().clear();
                                                fts.rules().addAll(selectionFTStyle.rules());
                                                break;
                                        }
                                }
                                if (!foundAndReplaced) {
                                        originalStyle.featureTypeStyles().add(selectionFTStyle);
                                }

                                // Refresh the map
                                // mapPane.refresh();

                                DuplicatingStyleVisitor dsv = new DuplicatingStyleVisitor();
                                dsv.visit(originalStyle);
                                Style newStyle = (Style) dsv.getCopy();

                                StylingUtil.saveStyleToSLD(newStyle, new File(
                                                "/home/stefan/Desktop/selection.sld"));

                                // DuplicatingStyleVisitor dsv = new DuplicatingStyleVisitor();
                                // dsv.visit(originalStyle);
                                // Style newStyle = originalStyle;

                                // Style newStyle = StylingUtil.STYLE_BUILDER.createStyle();
                                // newStyle.featureTypeStyles().addAll(originalStyle.featureTypeStyles());
                                mapLayer.setStyle(newStyle);

                                replaceRenderer();
                        }

                } catch (Exception e) {
                        LOGGER.error("Error while trying to create a selection style", e);
                }
        }

        private void replaceRenderer() {
                //
                // // Has to be done before we apply the new Renderer
                // mapLayer.setStyle(style);

                GTRenderer oldRenderer = mapPane.getRenderer();

                /**
                 * Explicitly putting a new instance of LabelCacheDefault into the
                 * renderer instance, so JMapPane doesn't reuse the old one. This is
                 * very useful when changing the TextSymbolizer with AtlasStyler<br/>
                 * SK 9.7.09: It's not enought to user LabelCache.clear(). We can not
                 * reuse the old Renderer - better to create a new one!
                 */
                final GTRenderer newRenderer = GTUtil.createGTRenderer();

                final HashMap<Object, Object> rendererHints = defaultGTRenderingHints;
                rendererHints.put(StreamingRenderer.LABEL_CACHE_KEY,
                                new LabelCacheImpl());

                newRenderer.setRendererHints(rendererHints);
                mapPane.setRenderer(newRenderer);

                if (oldRenderer != null) {

                        RenderingHints java2DHints = oldRenderer.getJava2DHints();
                        if (java2DHints != null) {
                                newRenderer.setJava2DHints(java2DHints);
                        }

                        oldRenderer.setContext(null);
                        oldRenderer = null;
                }

                mapPane.refresh();

        }

        /**
         * Used to synchronize {@link FeatureSelectedEvent}s with the
         * {@link StyledFeatureLayerSelectionModel}
         */
        @Override
        public void performMapPaneEvent(JMapPaneEvent e) {

                // Ignore event if it is caused by us or the synchronizer is disabled.
                if (!isEnabled() || selectionChangeCausedByMe)
                        return;

                if (!(e instanceof FeatureSelectedEvent)) {
                        // LOGGER.debug("Ignoring event " + e);
                        return;
                }

                /**
                 * Only listen to FeatureSelectedEvents if an appropriate tool is
                 * selected.
                 */
                final int selectedTool = toolBar.getSelectedTool();
                if (selectedTool != MapPaneToolBar.TOOL_SELECTION_ADD
                                && selectedTool != MapPaneToolBar.TOOL_SELECTION_REMOVE
                                && selectedTool != MapPaneToolBar.TOOL_SELECTION_SET) {
                        return;
                }

                // only listen to events directly coming from JMapPane
                // selection (ignore selections from FilterDialog)
                if (e.getSourceObject() != this.mapPane)
                        return;

                FeatureSelectedEvent fse = (FeatureSelectedEvent) e;

                /**
                 * Checking, that the FeatureSelectedEvent actually contains features
                 * from this layer
                 */
                final String sourceID = fse.getSourceLayer().getTitle();
                final String syncForID = mapLayer.getTitle();
                if (sourceID != null && syncForID != null
                                && !sourceID.equals(syncForID)) {
                        LOGGER.debug("Ignoring a FeatureSelectedEvent from " + sourceID);
                        return;
                }

                // LOGGER.debug("do event " + fse);

                // Avoid event circles in propertyChange(..)
                selectionChangeCausedByMe = true;

                final FeatureCollection<SimpleFeatureType, SimpleFeature> selectionResult = fse
                                .getSelectionResult();
                Iterator<SimpleFeature> fi = selectionResult.iterator();
                try {

                        // reset the selection of the DpLayerSelectionModel
                        // layerSelModel.setValueIsAdjusting(true);

                        if (selectedTool == MapPaneToolBar.TOOL_SELECTION_ADD) {
                                layerSelModel.setValueIsAdjusting(true);

                                for (int fIdx = 0; fi.hasNext(); fIdx++) {
                                        SimpleFeature f = fi.next();
                                        layerSelModel.addSelection(f.getID());
                                }
                                layerSelModel.setValueIsAdjusting(false);
                        } else if (selectedTool == MapPaneToolBar.TOOL_SELECTION_SET) {
                                layerSelModel.setValueIsAdjusting(true);
                                layerSelModel.clearSelection();

                                for (int fIdx = 0; fi.hasNext(); fIdx++) {
                                        SimpleFeature f = fi.next();
                                        layerSelModel.addSelection(f.getID());
                                }

                                // LOGGER.debug("Setting selection to " + fi.());

                                layerSelModel.setValueIsAdjusting(false);
                        } else if (selectedTool == MapPaneToolBar.TOOL_SELECTION_REMOVE) {
                                layerSelModel.setValueIsAdjusting(true);
                                for (int fIdx = 0; fi.hasNext(); fIdx++) {
                                        SimpleFeature f = fi.next();
                                        layerSelModel.removeSelection(f.getID());
                                }
                                layerSelModel.setValueIsAdjusting(false);
                        }

                } finally {
                        selectionResult.close(fi);
                }

                // Show selected features in the map, which is not automatically done by
                // the origin: FeatureSelectedEvent
                changeLayerStyle(layerSelModel.getSelection());

                // Danger of event circles in propertyChange(..) banned
                selectionChangeCausedByMe = false;
        }

}
1	alfonx	244	/*******************************************************************************
2			* Copyright (c) 2009 Martin O. J. Schmitz.
3			*
4			* This file is part of the SCHMITZM library - a collection of utility
5	alfonx	256	* classes based on Java 1.6, focusing (not only) on Java Swing
6	alfonx	244	* and the Geotools library.
7			*
8			* The SCHMITZM project is hosted at:
9			* http://wald.intevation.org/projects/schmitzm/
10			*
11			* This program is free software; you can redistribute it and/or
12			* modify it under the terms of the GNU Lesser General Public License
13			* as published by the Free Software Foundation; either version 3
14			* of the License, or (at your option) any later version.
15			*
16			* This program is distributed in the hope that it will be useful,
17			* but WITHOUT ANY WARRANTY; without even the implied warranty of
18			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19			* GNU General Public License for more details.
20			*
21			* 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			* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
24			* or try this link: http://www.gnu.org/licenses/lgpl.html
25			*
26			* Contributors:
27			* Martin O. J. Schmitz - initial API and implementation
28			* Stefan A. Krüger - additional utility classes
29			******************************************************************************/
30	alfonx	97	/**
31			Copyright 2008 Stefan Alfons Krüger
32	alfonx	409
33	alfonx	97	atlas-framework - This file is part of the Atlas Framework
34
35			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.
36			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.
37			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
38
39			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.
40			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.
41			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.
42			**/
43			package skrueger.geotools.selection;
44
45	alfonx	419	import java.awt.RenderingHints;
46	alfonx	97	import java.beans.PropertyChangeEvent;
47			import java.beans.PropertyChangeListener;
48	alfonx	489	import java.io.File;
49	alfonx	419	import java.util.HashMap;
50	alfonx	158	import java.util.HashSet;
51	alfonx	409	import java.util.Iterator;
52	alfonx	158	import java.util.Set;
53	alfonx	97	import java.util.Vector;
54
55			import javax.swing.JTable;
56			import javax.swing.ListSelectionModel;
57			import javax.swing.event.ListSelectionListener;
58
59	alfonx	455	import org.geotools.feature.FeatureCollection;
60	alfonx	489	import org.geotools.feature.FeatureIterator;
61	alfonx	97	import org.geotools.map.MapLayer;
62	alfonx	419	import org.geotools.renderer.GTRenderer;
63			import org.geotools.renderer.label.LabelCacheImpl;
64			import org.geotools.renderer.lite.StreamingRenderer;
65	alfonx	123	import org.geotools.styling.FeatureTypeStyle;
66	alfonx	97	import org.geotools.styling.Style;
67	alfonx	419	import org.geotools.styling.visitor.DuplicatingStyleVisitor;
68	mojays	325	import org.opengis.feature.simple.SimpleFeature;
69	alfonx	455	import org.opengis.feature.simple.SimpleFeatureType;
70	alfonx	158	import org.opengis.filter.identity.FeatureId;
71	alfonx	97
72	alfonx	158	import schmitzm.geotools.FilterUtil;
73	alfonx	438	import schmitzm.geotools.GTUtil;
74	alfonx	97	import schmitzm.geotools.gui.JMapPane;
75			import schmitzm.geotools.map.event.FeatureSelectedEvent;
76			import schmitzm.geotools.map.event.JMapPaneEvent;
77			import schmitzm.geotools.map.event.JMapPaneListener;
78			import schmitzm.geotools.styling.StylingUtil;
79	alfonx	111	import skrueger.geotools.MapPaneToolBar;
80	alfonx	489	import skrueger.geotools.StyledFeaturesInterface;
81	alfonx	224	import skrueger.geotools.StyledLayerInterface;
82	alfonx	97
83			/**
84			* This class keeps the selection of a (feature) {@link JTable} synchronized
85			* with the {@link StyledLayerSelectionModel} of a layer. This is done by
86			* implementing:
87			* <ul>
88			* <li>a {@link PropertyChangeListener} which listens to the
89			* {@link StyledLayerSelectionModel} and accordingly changes the {@link JTable}
90			* selection</li>
91			* <li>a {@link ListSelectionListener} which listens to the {@link JTable} and
92			* accordingly changes the {@link StyledLayerSelectionModel} selection</li>
93			* </ul>
94			* After creating, the instance of this synchronizer must be added as listener
95			* to both, the {@link StyledLayerSelectionModel} and the table's
96			* {@link ListSelectionModel}.
97			*
98			* @author <a href="mailto:[email protected]">Martin Schmitz</a>
99			* (University of Bonn/Germany)
100			*/
101			public class FeatureMapLayerSelectionSynchronizer extends
102	alfonx	106	StyledLayerSelectionModelSynchronizer<StyledFeatureLayerSelectionModel>
103			implements JMapPaneListener {
104	alfonx	111	public static final String SELECTION_STYLING = "SELECTION";
105	alfonx	97	/**
106			* Holds the {@link MapLayer} to keep synchronized with the layer selection
107			* model.
108			*/
109			protected final MapLayer mapLayer;
110	alfonx	489	protected final StyledFeaturesInterface<?> styledLayer;
111	alfonx	97	protected final JMapPane mapPane;
112	alfonx	111	private final MapPaneToolBar toolBar;
113	alfonx	419	private final HashMap<Object, Object> defaultGTRenderingHints;
114	alfonx	97
115			/**
116			* Creates a new synchronizer
117			*
118			* @param layerSelModel
119			* layer selection model to keep synchronized with the
120			* {@link MapLayer}
121			*
122			* @param mapLayer
123			* {@link MapLayer} to keep synchronized with.
124			*/
125			public FeatureMapLayerSelectionSynchronizer(
126			StyledFeatureLayerSelectionModel layerSelModel,
127	alfonx	489	StyledFeaturesInterface<?> styledLayer, MapLayer mapLayer,
128	alfonx	455	JMapPane mapPane, MapPaneToolBar toolBar,
129			HashMap<Object, Object> defaultGTRenderingHints) {
130	alfonx	97
131			super(layerSelModel);
132	alfonx	224	this.styledLayer = styledLayer;
133	alfonx	97
134			this.mapLayer = mapLayer;
135			this.mapPane = mapPane;
136	alfonx	111	this.toolBar = toolBar;
137	alfonx	419	if (defaultGTRenderingHints != null)
138			this.defaultGTRenderingHints = defaultGTRenderingHints;
139	alfonx	455	else
140	alfonx	419	this.defaultGTRenderingHints = new HashMap<Object, Object>();
141	alfonx	97	}
142
143			/**
144			* Called by {@link StyledLayerSelectionModel} when a the selection on other
145			* selection components (map, chart, ...) has changed. When calling this
146			*
147			* method changes the {@link MapLayer} selection according to the
148			* {@link StyledLayerSelectionModel} selection.
149			*
150			* @param evt
151			* an event
152			*/
153			@Override
154			public void propertyChange(PropertyChangeEvent evt) {
155	alfonx	151
156			if (!isEnabled())
157			return;
158
159	alfonx	97	if (!(evt instanceof StyledLayerSelectionEvent))
160			return;
161			StyledLayerSelectionEvent selEvt = (StyledLayerSelectionEvent) evt;
162			// Only react on own layer and ignore events invoked by
163			// this component itself
164			if (selEvt.getEmitter() != layerSelModel \|\| selectionChangeCausedByMe)
165			return;
166			// Apply new selection on table (except this event is one of
167			// some more events)
168	alfonx	111	Vector<String> newSelection = layerSelModel.getSelection();
169	alfonx	97	if (newSelection == null)
170			return;
171
172			// Avoid event circles in valueChanged(..)
173			selectionChangeCausedByMe = true;
174
175			changeLayerStyle(newSelection);
176
177			// Danger of event circles in valueChanged(..) banned
178			selectionChangeCausedByMe = false;
179			}
180
181	alfonx	151	/**
182			* Changes the Style of the {@link MapLayer} to reflect changes of the
183			* selection.
184			*
185			* @param newSelection
186	alfonx	318	* A {@link Vector} of SimpleFeature-IDs that are selected.
187	alfonx	151	*/
188	alfonx	111	private void changeLayerStyle(final Vector<String> newSelection) {
189	alfonx	97	try {
190	alfonx	455
191	alfonx	412	Style originalStyle = mapLayer.getStyle();
192	alfonx	97	if (newSelection.isEmpty()) {
193
194	alfonx	412	// Check if the Style contains a SELECTION FTS
195	alfonx	455
196			FeatureTypeStyle[] clone = originalStyle.featureTypeStyles()
197			.toArray(new FeatureTypeStyle[] {}).clone();
198
199	alfonx	412	for (FeatureTypeStyle fts : clone) {
200			if (fts.getName() != null
201			&& fts.getName().equals(SELECTION_STYLING)) {
202			originalStyle.featureTypeStyles().remove(fts);
203	alfonx	455
204	alfonx	419	replaceRenderer();
205	alfonx	455	// mapPane.refresh();
206	alfonx	106
207	alfonx	412	return;
208			}
209			}
210
211	alfonx	97	} else {
212	alfonx	100	LOGGER.debug("SELECTION .. change style");
213	alfonx	106
214	alfonx	123	// We take Style from the MapLayer that is displayed at the
215	alfonx	224	// moment. We do not use the styledLayer.getStyle, because in
216	alfonx	123	// the atlas, this always return the default style, but
217	alfonx	224	// additional styles might be selected.
218	alfonx	123	// Taking the style from the mapLayer indicated, that we have to
219	alfonx	125	// remove any selection rules first.
220	alfonx	101
221	alfonx	412	FeatureTypeStyle selectionFTStyle = StylingUtil
222	alfonx	224	.createSelectionStyle(styledLayer.getGeoObject());
223	alfonx	106
224	alfonx	412	selectionFTStyle.setName(SELECTION_STYLING);
225	alfonx	123
226	alfonx	158	/**
227			*
228			* Add a Filter to the selectionMapStyle, so that it is only
229			* used on objects that are selected. <br/>
230	alfonx	489	* To optimize rendering speed, the filter checks whether more
231			* than half of the features are selected. If so, the filter is
232			* inverted to be shorter.
233	alfonx	158	*
234			*/
235	alfonx	106
236	alfonx	489	final FeatureCollection<SimpleFeatureType, SimpleFeature> featureCollectionFiltered = styledLayer
237			.getFeatureCollectionFiltered();
238			if (newSelection.size() > featureCollectionFiltered.size() / 2) {
239			FeatureIterator<SimpleFeature> iterator = featureCollectionFiltered
240			.features();
241			Set<FeatureId> antiFids = new HashSet<FeatureId>();
242			try {
243			while (iterator.hasNext()) {
244			SimpleFeature next = iterator.next();
245			if (!newSelection.contains(next.getID()))
246			antiFids.add(FilterUtil.FILTER_FAC2
247			.featureId(next.getID()));
248			}
249
250			selectionFTStyle.rules().get(0).setFilter(
251			FilterUtil.FILTER_FAC2
252			.not(FilterUtil.FILTER_FAC2
253			.id(antiFids)));
254
255			} finally {
256			featureCollectionFiltered.close(iterator);
257			}
258			} else {
259			Set<FeatureId> fids = new HashSet<FeatureId>();
260			for (String fid : newSelection) {
261			fids.add(FilterUtil.FILTER_FAC2.featureId(fid));
262			}
263
264			selectionFTStyle.rules().get(0).setFilter(
265			FilterUtil.FILTER_FAC2.id(fids));
266	alfonx	158	}
267	alfonx	106
268	alfonx	412	// Maybe there has already been another selection
269			// FeatureTypeStyle... Let's replace it...
270			boolean foundAndReplaced = false;
271			for (FeatureTypeStyle fts : originalStyle.featureTypeStyles()) {
272			if (fts.getName() != null
273			&& fts.getName().equals(SELECTION_STYLING)) {
274			foundAndReplaced = true;
275			fts.rules().clear();
276			fts.rules().addAll(selectionFTStyle.rules());
277			break;
278			}
279	alfonx	123	}
280	alfonx	412	if (!foundAndReplaced) {
281			originalStyle.featureTypeStyles().add(selectionFTStyle);
282			}
283	alfonx	151
284	alfonx	412	// Refresh the map
285	alfonx	455	// mapPane.refresh();
286
287	alfonx	419	DuplicatingStyleVisitor dsv = new DuplicatingStyleVisitor();
288			dsv.visit(originalStyle);
289	alfonx	455	Style newStyle = (Style) dsv.getCopy();
290
291	alfonx	489	StylingUtil.saveStyleToSLD(newStyle, new File(
292			"/home/stefan/Desktop/selection.sld"));
293
294			// DuplicatingStyleVisitor dsv = new DuplicatingStyleVisitor();
295			// dsv.visit(originalStyle);
296			// Style newStyle = originalStyle;
297
298	alfonx	455	// Style newStyle = StylingUtil.STYLE_BUILDER.createStyle();
299			// newStyle.featureTypeStyles().addAll(originalStyle.featureTypeStyles());
300	alfonx	419	mapLayer.setStyle(newStyle);
301	alfonx	455
302	alfonx	419	replaceRenderer();
303	alfonx	97	}
304
305			} catch (Exception e) {
306			LOGGER.error("Error while trying to create a selection style", e);
307			}
308			}
309
310	alfonx	419	private void replaceRenderer() {
311	alfonx	455	//
312			// // Has to be done before we apply the new Renderer
313			// mapLayer.setStyle(style);
314	alfonx	419
315			GTRenderer oldRenderer = mapPane.getRenderer();
316
317			/**
318			* Explicitly putting a new instance of LabelCacheDefault into the
319			* renderer instance, so JMapPane doesn't reuse the old one. This is
320			* very useful when changing the TextSymbolizer with AtlasStyler<br/>
321			* SK 9.7.09: It's not enought to user LabelCache.clear(). We can not
322			* reuse the old Renderer - better to create a new one!
323			*/
324	alfonx	440	final GTRenderer newRenderer = GTUtil.createGTRenderer();
325	alfonx	419
326			final HashMap<Object, Object> rendererHints = defaultGTRenderingHints;
327			rendererHints.put(StreamingRenderer.LABEL_CACHE_KEY,
328			new LabelCacheImpl());
329
330			newRenderer.setRendererHints(rendererHints);
331			mapPane.setRenderer(newRenderer);
332
333			if (oldRenderer != null) {
334	alfonx	455
335	alfonx	419	RenderingHints java2DHints = oldRenderer.getJava2DHints();
336			if (java2DHints != null) {
337	alfonx	427	newRenderer.setJava2DHints(java2DHints);
338	alfonx	419	}
339	alfonx	455
340	alfonx	419	oldRenderer.setContext(null);
341			oldRenderer = null;
342			}
343	alfonx	455
344	alfonx	419	mapPane.refresh();
345
346			}
347
348	alfonx	151	/**
349			* Used to synchronize {@link FeatureSelectedEvent}s with the
350			* {@link StyledFeatureLayerSelectionModel}
351			*/
352	alfonx	97	@Override
353			public void performMapPaneEvent(JMapPaneEvent e) {
354	alfonx	106
355	alfonx	151	// Ignore event if it is caused by us or the synchronizer is disabled.
356			if (!isEnabled() \|\| selectionChangeCausedByMe)
357			return;
358
359			if (!(e instanceof FeatureSelectedEvent)) {
360			// LOGGER.debug("Ignoring event " + e);
361			return;
362			}
363
364	alfonx	111	/**
365	alfonx	151	* Only listen to FeatureSelectedEvents if an appropriate tool is
366	alfonx	111	* selected.
367			*/
368			final int selectedTool = toolBar.getSelectedTool();
369			if (selectedTool != MapPaneToolBar.TOOL_SELECTION_ADD
370			&& selectedTool != MapPaneToolBar.TOOL_SELECTION_REMOVE
371			&& selectedTool != MapPaneToolBar.TOOL_SELECTION_SET) {
372			return;
373			}
374
375	mojays	109	// only listen to events directly coming from JMapPane
376			// selection (ignore selections from FilterDialog)
377	alfonx	111	if (e.getSourceObject() != this.mapPane)
378			return;
379
380	alfonx	97	FeatureSelectedEvent fse = (FeatureSelectedEvent) e;
381
382	alfonx	151	/**
383	alfonx	158	* Checking, that the FeatureSelectedEvent actually contains features
384			* from this layer
385	alfonx	151	*/
386			final String sourceID = fse.getSourceLayer().getTitle();
387			final String syncForID = mapLayer.getTitle();
388			if (sourceID != null && syncForID != null
389	alfonx	158	&& !sourceID.equals(syncForID)) {
390			LOGGER.debug("Ignoring a FeatureSelectedEvent from " + sourceID);
391	alfonx	97	return;
392	alfonx	151	}
393	alfonx	97
394	alfonx	489	// LOGGER.debug("do event " + fse);
395	alfonx	111
396	alfonx	97	// Avoid event circles in propertyChange(..)
397			selectionChangeCausedByMe = true;
398
399	alfonx	455	final FeatureCollection<SimpleFeatureType, SimpleFeature> selectionResult = fse
400			.getSelectionResult();
401			Iterator<SimpleFeature> fi = selectionResult.iterator();
402			try {
403	alfonx	97
404	alfonx	455	// reset the selection of the DpLayerSelectionModel
405			// layerSelModel.setValueIsAdjusting(true);
406	alfonx	97
407	alfonx	455	if (selectedTool == MapPaneToolBar.TOOL_SELECTION_ADD) {
408			layerSelModel.setValueIsAdjusting(true);
409	alfonx	409
410	alfonx	455	for (int fIdx = 0; fi.hasNext(); fIdx++) {
411			SimpleFeature f = fi.next();
412			layerSelModel.addSelection(f.getID());
413			}
414			layerSelModel.setValueIsAdjusting(false);
415			} else if (selectedTool == MapPaneToolBar.TOOL_SELECTION_SET) {
416			layerSelModel.setValueIsAdjusting(true);
417			layerSelModel.clearSelection();
418	alfonx	97
419	alfonx	455	for (int fIdx = 0; fi.hasNext(); fIdx++) {
420			SimpleFeature f = fi.next();
421			layerSelModel.addSelection(f.getID());
422			}
423	alfonx	111
424	alfonx	455	// LOGGER.debug("Setting selection to " + fi.());
425	alfonx	409
426	alfonx	455	layerSelModel.setValueIsAdjusting(false);
427			} else if (selectedTool == MapPaneToolBar.TOOL_SELECTION_REMOVE) {
428			layerSelModel.setValueIsAdjusting(true);
429			for (int fIdx = 0; fi.hasNext(); fIdx++) {
430			SimpleFeature f = fi.next();
431			layerSelModel.removeSelection(f.getID());
432			}
433			layerSelModel.setValueIsAdjusting(false);
434	alfonx	111	}
435	alfonx	455
436			} finally {
437			selectionResult.close(fi);
438	alfonx	151	}
439	alfonx	111
440			// Show selected features in the map, which is not automatically done by
441			// the origin: FeatureSelectedEvent
442	alfonx	97	changeLayerStyle(layerSelModel.getSelection());
443	alfonx	106
444	alfonx	97	// Danger of event circles in propertyChange(..) banned
445			selectionChangeCausedByMe = false;
446			}
447	alfonx	151
448	alfonx	97	}
Name	Value
svn:eol-style	native
svn:keywords	Id
svn:mime-type	text/plain