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/* gvSIG. Geographic Information System of the Valencian Government
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 *
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 * Copyright (C) 2007-2008 Infrastructures and Transports Department
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 * of the Valencian Government (CIT)
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 * 
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 * This program is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU General Public License
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 * as published by the Free Software Foundation; either version 2
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 * of the License, or (at your option) any later version.
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 * 
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 * 
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, 
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 * MA  02110-1301, USA.
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 * 
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 */
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/*
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 * AUTHORS (In addition to CIT):
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 * 2009 {Iver T.I.}   {Task}
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 */
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package org.gvsig.fmap.mapcontrol.impl;
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import java.awt.Color;
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import java.util.ArrayList;
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import java.util.Iterator;
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import java.util.Map;
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import java.util.prefs.Preferences;
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import org.gvsig.fmap.geom.Geometry;
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import org.gvsig.fmap.mapcontext.MapContextLocator;
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import org.gvsig.fmap.mapcontext.MapContextManager;
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import org.gvsig.fmap.mapcontext.rendering.symbols.ISymbol;
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import org.gvsig.fmap.mapcontrol.MapControl;
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import org.gvsig.fmap.mapcontrol.MapControlCreationException;
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import org.gvsig.fmap.mapcontrol.MapControlDrawer;
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import org.gvsig.fmap.mapcontrol.MapControlManager;
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import org.gvsig.fmap.mapcontrol.swing.dynobject.LayersDynObjectSetComponent;
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import org.gvsig.fmap.mapcontrol.swing.dynobject.impl.DefaultLayersDynObjectSetComponent;
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import org.gvsig.fmap.mapcontrol.tools.snapping.snappers.ISnapper;
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import org.gvsig.tools.ToolsLocator;
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import org.gvsig.tools.dynobject.DynObjectSet;
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import org.gvsig.tools.extensionpoint.ExtensionPoint;
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import org.gvsig.tools.extensionpoint.ExtensionPoint.Extension;
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import org.gvsig.tools.extensionpoint.ExtensionPointManager;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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/**
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 * @author <a href="mailto:jpiera@gvsig.org">Jorge Piera</a>
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 */
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public class DefaultMapControlManager implements MapControlManager{
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        private static final Logger logger = LoggerFactory.getLogger(MapControlManager.class);
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        private static final String MAPCONTROL_MANAGER_EXTENSION_POINT = "MapControlManagerExtensionPoint";
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        private static final String DEFAULT_MAPCONTROLMANAGER_NAME = null;
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        private static final String SNAPPING_EXTENSION_POINT = "Snapper";
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        private ExtensionPointManager extensionPoints = ToolsLocator.getExtensionPointManager();
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        private int snappingTolerance = 4;
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        private ISymbol selectionSymbol = null;        
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        private ISymbol axisReferencesSymbol = null;
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        private ISymbol geometrySelectionSymbol = null;
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        private ISymbol handlerSymbol = null;
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        private static MapContextManager mapContextManager = MapContextLocator
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        .getMapContextManager();
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        private Preferences prefs = Preferences.userRoot().node( "cadtooladapter" );
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        private static Preferences prefSnappers = Preferences.userRoot().node("snappers");
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        private ArrayList<ISnapper> snappers = null;        
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        public DefaultMapControlManager() {
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                super();
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                snappers = new ArrayList<ISnapper>();
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        }
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        /* (non-Javadoc)
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         * @see org.gvsig.fmap.mapcontrol.MapControlManager#createDefaultMapControlDrawer()
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         */
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        public MapControlDrawer createDefaultMapControlDrawer() throws MapControlCreationException {
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                ExtensionPoint ep = extensionPoints.add(MAPCONTROL_MANAGER_EXTENSION_POINT);
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                try {
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                        return (MapControlDrawer)ep.create(DEFAULT_MAPCONTROLMANAGER_NAME);                        
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                } catch (Exception e) {
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                        throw new MapControlCreationException(e);
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                }        
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        }
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        /*
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         * (non-Javadoc)
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         * @see org.gvsig.fmap.mapcontrol.MapControlManager#createMapControlDrawer(java.lang.String)
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         */
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        public MapControlDrawer createMapControlDrawer(String name) throws MapControlCreationException {
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                ExtensionPoint ep = extensionPoints.add(MAPCONTROL_MANAGER_EXTENSION_POINT);
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                try {
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                        return (MapControlDrawer)ep.create(name);                        
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                } catch (Exception e) {
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                        throw new MapControlCreationException(e);
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                }
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        }
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        /* (non-Javadoc)
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         * @see org.gvsig.fmap.mapcontrol.MapControlManager#registerDefaultMapControlDrawer(java.lang.Class)
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         */
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        public void registerDefaultMapControlDrawer(Class mapControlDrawerClass) {
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                if (!MapControlDrawer.class.isAssignableFrom(mapControlDrawerClass)) {
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                        throw new IllegalArgumentException(mapControlDrawerClass.getName()
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                                        + " must implement the MapControlDrawer interface");
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                }
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                ExtensionPoint extensionPoint = extensionPoints.add(MAPCONTROL_MANAGER_EXTENSION_POINT, "");
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                extensionPoint.append(DEFAULT_MAPCONTROLMANAGER_NAME, "Default MapControl", mapControlDrawerClass);                
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        }
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        /* (non-Javadoc)
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         * @see org.gvsig.fmap.mapcontrol.MapControlManager#registerMapControlDrawer(int, java.lang.Class)
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         */
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        public void registerMapControlDrawer(String name,
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                        Class mapControlDrawerClass) {
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                if (!MapControlDrawer.class.isAssignableFrom(mapControlDrawerClass)) {
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                        throw new IllegalArgumentException(mapControlDrawerClass.getName()
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                                        + " must implement the MapControlDrawer interface");
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                }
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                ExtensionPoint extensionPoint = extensionPoints.add(MAPCONTROL_MANAGER_EXTENSION_POINT, "");
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                extensionPoint.append(name, "Default MapControl", mapControlDrawerClass);                
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        }
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        /* (non-Javadoc)
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         * @see org.gvsig.fmap.mapcontrol.MapControlManager#getSnappingTolerance()
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         */
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        public int getTolerance() {
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                return snappingTolerance;
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        }
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        /* (non-Javadoc)
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         * @see org.gvsig.fmap.mapcontrol.MapControlManager#setSnappingTolerance(int)
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         */
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        public void setTolerance(int tolerance) {
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                snappingTolerance = tolerance;                
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        }
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        /* (non-Javadoc)
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         * @see org.gvsig.fmap.mapcontrol.MapControlManager#clearSnappers()
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         */
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        public void clearSnappers() {
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                snappers.clear();                
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        }
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        /* (non-Javadoc)
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         * @see org.gvsig.fmap.mapcontrol.MapControlManager#getAxisReferenceSymbol()
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         */
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        public ISymbol getAxisReferenceSymbol() {
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                if (axisReferencesSymbol == null){
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                        axisReferencesSymbol =
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                                        mapContextManager.getSymbolManager()
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                        .createSymbol(Geometry.TYPES.GEOMETRY,
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                                        new Color(100, 100, 100, 100));
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                }
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                return axisReferencesSymbol;
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        }
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        /* (non-Javadoc)
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         * @see org.gvsig.fmap.mapcontrol.MapControlManager#getGeometrySelectionSymbol()
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         */
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        public ISymbol getGeometrySelectionSymbol() {
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                if (geometrySelectionSymbol == null){
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                        geometrySelectionSymbol =
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                                        mapContextManager.getSymbolManager()
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                        .createSymbol(Geometry.TYPES.GEOMETRY, Color.RED);
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                }                
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                return geometrySelectionSymbol;
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        }
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        /* (non-Javadoc)
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         * @see org.gvsig.fmap.mapcontrol.MapControlManager#getHandlerSymbol()
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         */
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        public ISymbol getHandlerSymbol() {
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                if (handlerSymbol == null){
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                        handlerSymbol =
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                                        mapContextManager.getSymbolManager().createSymbol(
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                                        Geometry.TYPES.GEOMETRY, Color.ORANGE);
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                }
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                return handlerSymbol;
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        }
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        /* (non-Javadoc)
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         * @see org.gvsig.fmap.mapcontrol.MapControlManager#getSelectionSymbol()
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         */
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        public ISymbol getSelectionSymbol() {
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                if (selectionSymbol == null){
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                        selectionSymbol =
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                                        mapContextManager.getSymbolManager().createSymbol(
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                                        Geometry.TYPES.GEOMETRY, new Color(255, 0, 0, 100)); 
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                }
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                return selectionSymbol;
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        }
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        /*
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         * (non-Javadoc)
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         * @see org.gvsig.fmap.mapcontrol.MapControlManager#setAxisReferenceSymbol(org.gvsig.fmap.mapcontext.rendering.symbols.ISymbol)
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         */
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        public void setAxisReferenceSymbol(ISymbol axisReferencesSymbol) {
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                this.axisReferencesSymbol = axisReferencesSymbol;                
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        }
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        /*
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         * (non-Javadoc)
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         * @see org.gvsig.fmap.mapcontrol.MapControlManager#setGeometrySelectionSymbol(org.gvsig.fmap.mapcontext.rendering.symbols.ISymbol)
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         */
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        public void setGeometrySelectionSymbol(ISymbol geometrySelectionSymbol) {
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                this.geometrySelectionSymbol = geometrySelectionSymbol;                
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        }
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        /*
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         * (non-Javadoc)
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         * @see org.gvsig.fmap.mapcontrol.MapControlManager#setHandlerSymbol(org.gvsig.fmap.mapcontext.rendering.symbols.ISymbol)
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         */
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        public void setHandlerSymbol(ISymbol handlerSymbol) {
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                this.handlerSymbol = handlerSymbol;                
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        }
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        /*
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         * (non-Javadoc)
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         * @see org.gvsig.fmap.mapcontrol.MapControlManager#setSelectionSymbol(org.gvsig.fmap.mapcontext.rendering.symbols.ISymbol)
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         */
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        public void setSelectionSymbol(ISymbol selectionSymbol) {
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                this.selectionSymbol = selectionSymbol;                
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        }
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        /* (non-Javadoc)
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         * @see org.gvsig.fmap.mapcontrol.MapControlManager#addSnapper(org.gvsig.fmap.mapcontrol.tools.snapping.snappers.ISnapper)
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         */
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        public void registerSnapper(String name, Class snapperClass) {
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                if (!ISnapper.class.isAssignableFrom(snapperClass)) {
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                        throw new IllegalArgumentException(snapperClass.getName()
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                                        + " must implement the ISnapper interface");
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                }                
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                ExtensionPoint extensionPoint = extensionPoints.add(SNAPPING_EXTENSION_POINT, "");
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                Extension extension = extensionPoint.append(name, "", snapperClass);
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                ISnapper snapper;
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                try {
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                        snapper = (ISnapper)extension.create();
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                        snappers.add(snapper);
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            String nameClass=snapper.getClass().getName();
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                nameClass=nameClass.substring(nameClass.lastIndexOf('.'));
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                boolean select = prefSnappers.getBoolean("snapper_activated" + nameClass, false);
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                int priority = prefs.getInt("snapper_priority" + nameClass,3);
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                snapper.setPriority(priority);
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                if (select){
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                          snapper.setEnabled(select);   
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                }           
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                } catch (Exception e) {
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                        logger.error("It is not possible to create the snapper");
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                }       
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        }
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        /* (non-Javadoc)
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         * @see org.gvsig.fmap.mapcontrol.MapControlManager#getSnapperAt(int)
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         */
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        public ISnapper getSnapperAt(int index) {
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                return snappers.get(index);
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        }
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        /* (non-Javadoc)
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         * @see org.gvsig.fmap.mapcontrol.MapControlManager#getSnapperCount()
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         */
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        public int getSnapperCount() {
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                return snappers.size();
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        }
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        /* (non-Javadoc)
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         * @see org.gvsig.fmap.mapcontrol.MapControlManager#disableSnapping()
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         */
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        public void disableSnapping() {
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                snappers.clear();                
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        }
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        /* (non-Javadoc)
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         * @see org.gvsig.fmap.mapcontrol.MapControlManager#enableSnapping()
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         */
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        public void enableSnapping() {
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                ExtensionPointManager extensionPoints = ToolsLocator.getExtensionPointManager();
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                ExtensionPoint ep = extensionPoints.get(SNAPPING_EXTENSION_POINT);
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                Iterator iterator = ep.iterator();
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                while (iterator.hasNext()) {
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                        try {
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                                Extension obj= (Extension)iterator.next();
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                                ISnapper snapper = (ISnapper) ep.create(obj.getName());
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                                snappers.add(snapper);
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                        } catch (Exception e) {
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                                logger.error("Creating a snapper", e);
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                        }
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                }
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                for (int n = 0; n < getSnapperCount(); n++) {
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                        ISnapper snp = getSnapperAt(n);
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                        String nameClass = snp.getClass().getName();
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                        nameClass = nameClass.substring(nameClass.lastIndexOf('.'));
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                        boolean select = prefs.getBoolean("snapper_activated" + nameClass, false);
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                        if (select) {
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                                snp.setEnabled(select);                                
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                        }
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                        int priority = prefs.getInt("snapper_priority" + nameClass, 3);
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                        snp.setPriority(priority);
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                }
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        }
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        /* (non-Javadoc)
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         * @see org.gvsig.fmap.mapcontrol.MapControlManager#getEditionPreferences()
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         */
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        public Preferences getEditionPreferences() {
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                return prefs;
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        }
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        public MapControl createJMapControlPanel() throws MapControlCreationException {
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                MapControl mapControl = new MapControl();
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                mapControl.setMapControlDrawer(this.createDefaultMapControlDrawer());
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                return mapControl;
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        }
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    public LayersDynObjectSetComponent createLayersDynObjectSetComponent(
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        Map<String, DynObjectSet> layerName2InfoByPoint) {
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        return createLayersDynObjectSetComponent(layerName2InfoByPoint, false);
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    }
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    public LayersDynObjectSetComponent createLayersDynObjectSetComponent(
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        Map<String, DynObjectSet> layerName2InfoByPoint, boolean writable) {
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        return new DefaultLayersDynObjectSetComponent(layerName2InfoByPoint,
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            writable);
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    }
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}