svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.plugin / org.gvsig.labeling.app / org.gvsig.labeling.app.mainplugin / src / main / java / org / gvsig / labeling / label / GeneralLabelingStrategy.java @ 41194
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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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*
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* Copyright (C) 2005 IVER T.I. and Generalitat Valenciana.
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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*
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* For more information, contact:
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*
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* Generalitat Valenciana
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* Conselleria d'Infraestructures i Transport
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* Av. Blasco Ib??ez, 50
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* 46010 VALENCIA
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* SPAIN
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*
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* +34 963862235
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* gvsig@gva.es
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* www.gvsig.gva.es
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*
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* or
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*
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* IVER T.I. S.A
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* Salamanca 50
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* 46005 Valencia
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* Spain
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*
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* +34 963163400
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* dac@iver.es
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*/
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/* CVS MESSAGES:
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*
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* $Id: GeneralLabelingStrategy.java 13749 2007-09-17 14:16:11Z jaume $
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* $Log$
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* Revision 1.2 2007-09-17 14:16:11 jaume
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* multilayer symbols sizing bug fixed
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*
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* Revision 1.1 2007/05/22 12:17:41 jaume
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* *** empty log message ***
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*
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* Revision 1.1 2007/05/22 10:05:31 jaume
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* *** empty log message ***
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*
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* Revision 1.10 2007/05/17 09:32:06 jaume
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* *** empty log message ***
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*
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* Revision 1.9 2007/05/09 11:04:58 jaume
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* refactored legend hierarchy
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*
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* Revision 1.8 2007/04/13 11:59:30 jaume
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* *** empty log message ***
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*
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* Revision 1.7 2007/04/12 14:28:43 jaume
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* basic labeling support for lines
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*
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* Revision 1.6 2007/04/11 16:01:08 jaume
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* maybe a label placer refactor
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*
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* Revision 1.5 2007/04/10 16:34:01 jaume
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* towards a styled labeling
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*
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* Revision 1.4 2007/04/02 16:34:56 jaume
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* Styled labeling (start commiting)
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*
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* Revision 1.3 2007/03/28 16:48:01 jaume
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* *** empty log message ***
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*
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* Revision 1.2 2007/03/26 14:40:38 jaume
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* added print method (BUT UNIMPLEMENTED)
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*
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* Revision 1.1 2007/03/20 16:16:20 jaume
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* refactored to use ISymbol instead of FSymbol
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*
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* Revision 1.2 2007/03/09 11:20:57 jaume
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* Advanced symbology (start committing)
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*
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* Revision 1.1 2007/03/09 08:33:43 jaume
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* *** empty log message ***
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*
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* Revision 1.1.2.5 2007/02/21 07:34:08 jaume
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* labeling starts working
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*
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* Revision 1.1.2.4 2007/02/15 16:23:44 jaume
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* *** empty log message ***
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*
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* Revision 1.1.2.3 2007/02/09 07:47:05 jaume
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* Isymbol moved
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*
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* Revision 1.1.2.2 2007/02/02 16:21:24 jaume
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* start commiting labeling stuff
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*
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* Revision 1.1.2.1 2007/02/01 17:46:49 jaume
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* *** empty log message ***
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*
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*
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*/
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package org.gvsig.labeling.label; |
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import java.awt.Graphics2D; |
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import java.awt.geom.Point2D; |
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import java.awt.image.BufferedImage; |
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import java.io.StringReader; |
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import java.util.ArrayList; |
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import java.util.Hashtable; |
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import java.util.Iterator; |
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import java.util.TreeMap; |
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import java.util.TreeSet; |
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import org.gvsig.compat.print.PrintAttributes; |
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import org.gvsig.fmap.dal.exception.DataException; |
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import org.gvsig.fmap.dal.exception.ReadException; |
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import org.gvsig.fmap.dal.feature.Feature; |
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import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor; |
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import org.gvsig.fmap.dal.feature.FeatureSet; |
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import org.gvsig.fmap.geom.Geometry; |
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import org.gvsig.fmap.geom.Geometry.SUBTYPES; |
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import org.gvsig.fmap.geom.Geometry.TYPES; |
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import org.gvsig.fmap.geom.GeometryException; |
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import org.gvsig.fmap.geom.GeometryLocator; |
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import org.gvsig.fmap.geom.GeometryManager; |
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import org.gvsig.fmap.geom.primitive.Envelope; |
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import org.gvsig.fmap.geom.primitive.Point; |
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import org.gvsig.fmap.geom.type.GeometryType; |
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import org.gvsig.fmap.mapcontext.MapContext; |
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import org.gvsig.fmap.mapcontext.MapContextLocator; |
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import org.gvsig.fmap.mapcontext.ViewPort; |
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import org.gvsig.fmap.mapcontext.layers.FLayer; |
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import org.gvsig.fmap.mapcontext.layers.vectorial.FLyrVect; |
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import org.gvsig.fmap.mapcontext.rendering.legend.styling.ILabelClass; |
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import org.gvsig.fmap.mapcontext.rendering.legend.styling.ILabelingMethod; |
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import org.gvsig.fmap.mapcontext.rendering.legend.styling.ILabelingStrategy; |
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import org.gvsig.fmap.mapcontext.rendering.legend.styling.IPlacementConstraints; |
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import org.gvsig.fmap.mapcontext.rendering.legend.styling.IZoomConstraints; |
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import org.gvsig.fmap.mapcontext.rendering.symbols.CartographicSupport; |
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import org.gvsig.i18n.Messages; |
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import org.gvsig.labeling.lang.LabelClassUtils; |
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import org.gvsig.labeling.placements.AbstractPlacementConstraints; |
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import org.gvsig.labeling.placements.ILabelPlacement; |
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import org.gvsig.labeling.placements.LinePlacementConstraints; |
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import org.gvsig.labeling.placements.MultiShapePlacementConstraints; |
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import org.gvsig.labeling.placements.PlacementManager; |
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import org.gvsig.labeling.placements.PointPlacementConstraints; |
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import org.gvsig.labeling.placements.PolygonPlacementConstraints; |
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import org.gvsig.labeling.placements.RemoveDuplicatesComparator; |
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import org.gvsig.labeling.symbol.SmartTextSymbol; |
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import org.gvsig.labeling.symbol.SymbolUtils; |
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import org.gvsig.symbology.SymbologyLocator; |
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import org.gvsig.symbology.fmap.mapcontext.rendering.legend.styling.LabelLocationMetrics; |
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import org.gvsig.tools.ToolsLocator; |
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import org.gvsig.tools.dispose.DisposableIterator; |
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import org.gvsig.tools.dynobject.DynStruct; |
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import org.gvsig.tools.persistence.PersistenceManager; |
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import org.gvsig.tools.persistence.PersistentState; |
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import org.gvsig.tools.persistence.exception.PersistenceException; |
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import org.gvsig.tools.task.Cancellable; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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/**
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*
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* GeneralLabelingStrategy.java
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*
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*
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* @author jaume dominguez faus - jaume.dominguez@iver.es Jan 4, 2008
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*
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*/
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public class GeneralLabelingStrategy implements |
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ILabelingStrategy, Cloneable, CartographicSupport {
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private static final Logger logger = LoggerFactory.getLogger( |
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GeneralLabelingStrategy.class); |
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public static final String GENERAL_LABEL_STRATEGY_PERSISTENCE_NAME = |
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"GENERAL_LABEL_STRATEGY_PERSISTENCE_NAME";
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public static PointPlacementConstraints DefaultPointPlacementConstraints = |
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new PointPlacementConstraints();
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public static LinePlacementConstraints DefaultLinePlacementConstraints = |
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new LinePlacementConstraints();
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public static PolygonPlacementConstraints DefaultPolygonPlacementConstraints = |
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new PolygonPlacementConstraints();
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private static String[] NO_TEXT = { Messages.getText("text_field") }; |
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private static MultiShapePlacementConstraints DefaultMultiShapePlacementConstratints = |
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new MultiShapePlacementConstraints();
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private ILabelingMethod method;
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private IPlacementConstraints placementConstraints;
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private IZoomConstraints zoomConstraints;
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private boolean allowOverlapping; |
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protected FLyrVect layer;
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private long parseTime; |
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private int unit; |
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private int referenceSystem; |
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// private double sizeAfter;
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private boolean printMode = false; /* indicate whether output is for a print product (PDF, PS, ...) */ |
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public GeneralLabelingStrategy() {
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method = |
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SymbologyLocator.getSymbologyManager().createDefaultLabelingMethod(); |
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} |
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public void setLayer(FLayer layer) { |
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FLyrVect l = (FLyrVect) layer; |
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this.layer = l;
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} |
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public ILabelingMethod getLabelingMethod() {
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return method;
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} |
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public void setLabelingMethod(ILabelingMethod method) { |
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this.method = method;
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} |
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private class GeometryItem{ |
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public Geometry geom = null; |
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public int weigh = 0; |
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public double savedPerimeter; |
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public GeometryItem(Geometry geom, int weigh){ |
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this.geom = geom;
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this.weigh = weigh;
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this.savedPerimeter = 0; |
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} |
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} |
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public void draw(BufferedImage mapImage, Graphics2D mapGraphics, |
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ViewPort viewPort, |
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Cancellable cancel, |
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double dpi) throws ReadException { |
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int x = (int)viewPort.getOffset().getX(); |
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int y = (int)viewPort.getOffset().getY(); |
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// boolean bVisualFXEnabled = false; // if true, the user can see how the labeling is drawing up
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//offsets for page generation (PDF, PS, direct printing)
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int print_offset_x = x;
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int print_offset_y = y;
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if (printMode) {
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//for printing, we never offset the labels themselves
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x = 0;
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y = 0;
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printMode = false;
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} |
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TreeMap<String[], GeometryItem> labelsToPlace = null; |
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parseTime =0;
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// long t1 = System.currentTimeMillis();
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String[] usedFields = getUsedFields(); |
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int notPlacedCount = 0; |
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int placedCount = 0; |
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/*
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* Get the label placement solvers according the user's settings
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*/
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ILabelPlacement placement = PlacementManager.getPlacement( |
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getPlacementConstraints(), layer.getShapeType()); |
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BufferedImage targetBI;
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Graphics2D targetGr;
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/*
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* get an ordered set of the LabelClasses up on the
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* label priority
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*/
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ILabelClass[] lcs = method.getLabelClasses();
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TreeSet<ILabelClass> ts = new TreeSet<ILabelClass>( |
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new LabelClassComparatorByPriority());
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for (int i = 0; i < lcs.length; i++) ts.add(lcs[i]); |
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if (ts.size()==0) return; |
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/*
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* now we have an ordered set, it is only need to give a pass
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* for each label class to render by priorities.
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*
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* If no priorities were defined, the following loop only executes
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* once
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*/
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for (ILabelClass lc : ts) {
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if (!lc.isVisible()) {
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/*
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* Avoid non-visible labels
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*/
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continue;
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} |
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FeatureSet fset = null;
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try {
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fset = method.getFeatureIteratorByLabelClass( |
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layer, lc, viewPort, usedFields); |
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} catch (DataException e) {
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throw new ReadException(layer.getFeatureStore().getProviderName(), e); |
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} |
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// duplicates treatment stuff
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/* handle the duplicates mode */
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int duplicateMode = getDuplicateLabelsMode();
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if (duplicateMode == IPlacementConstraints.REMOVE_DUPLICATE_LABELS) {
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// we need to register the labels already placed
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labelsToPlace = new TreeMap<String[], GeometryItem>( |
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new RemoveDuplicatesComparator());
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} |
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boolean bLabelsReallocatable = !isAllowingOverlap();
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BufferedImage overlapDetectImage = null; |
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Graphics2D overlapDetectGraphics = null; |
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if (bLabelsReallocatable) {
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int width = viewPort.getImageWidth() + print_offset_x;
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if(width<0){ |
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width = 1;
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} |
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int height = viewPort.getImageHeight() + print_offset_y;
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if(height<0){ |
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height = 1;
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} |
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if (mapImage!=null) |
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overlapDetectImage = new BufferedImage( |
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mapImage.getWidth() + print_offset_x, |
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mapImage.getHeight() + print_offset_y, |
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BufferedImage.TYPE_INT_ARGB
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); |
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else
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overlapDetectImage = new BufferedImage( |
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viewPort.getImageWidth() + print_offset_x, |
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viewPort.getImageHeight() + print_offset_y, |
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BufferedImage.TYPE_INT_ARGB
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); |
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overlapDetectGraphics = overlapDetectImage.createGraphics(); |
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overlapDetectGraphics.setRenderingHints(mapGraphics.getRenderingHints()); |
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} |
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if (bLabelsReallocatable) {
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targetBI = overlapDetectImage; |
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targetGr = overlapDetectGraphics; |
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targetGr.translate(-x, -y); |
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} else {
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targetBI = mapImage; |
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targetGr = mapGraphics; |
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} |
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DisposableIterator diter = null;
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try {
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diter = fset.fastIterator(); |
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} catch (DataException e) {
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throw new ReadException(layer.getFeatureStore().getProviderName(), e); |
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} |
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Feature featu = null;
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Geometry geome = null;
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while ( !cancel.isCanceled() && diter.hasNext()) {
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featu = (Feature) diter.next(); |
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geome = featu.getDefaultGeometry(); |
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if (geome == null || geome.getType() == Geometry.TYPES.NULL) { |
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continue;
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} |
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if (!setupLabel(featu, lc, cancel,
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usedFields, viewPort, dpi, duplicateMode)) {
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continue;
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} |
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String[] texts = lc.getTexts(); |
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if (duplicateMode == IPlacementConstraints.REMOVE_DUPLICATE_LABELS) {
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// check if this text (so label) is already present in the map
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GeometryItem item = labelsToPlace.get(texts); |
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if (item == null){ |
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item = new GeometryItem(geome, 0); |
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labelsToPlace.put(texts, item); |
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} |
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if (item.geom != null) { |
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notPlacedCount++; |
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if (geome.getType() != Geometry.TYPES.POINT) {
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// FJP: Cambiamos la uni?n por una comprobaci?n de longitud, por ejemplo.
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// La geometr?a con mayor longitud del bounding box ser? la que etiquetamos.
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// Ser? inexacto, pero m?s r?pido. Solo lo queremos para saber qu? entidad etiquetamos
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// El problema con la uni?n es que para l?neas va muy mal (no sabes lo que te va
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// a etiquetar, y para pol?gonos ser? muy lenta. De todas formas, habr?a que evitar
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// la conversi?n al JTS.
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// Geometry jtsGeom = item.geom.toJTSGeometry().union(geom.toJTSGeometry());
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// if (jtsGeom instanceof LineString) {
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// CoordinateSequence cs = ((LineString) (jtsGeom)).getCoordinateSequence();
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// CoordinateSequences.reverse(cs);
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// jtsGeom = new LineString(cs, null);
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// }
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// item.geom = FConverter.jts_to_igeometry(jtsGeom);
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Envelope auxBox = geome.getEnvelope(); |
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double perimeterAux = 2 * (auxBox.getLength(0)+auxBox.getLength(1)); |
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if (perimeterAux > item.savedPerimeter) {
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item.geom = geome; //FConverter.jts_to_igeometry(jtsGeom);
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item.savedPerimeter = perimeterAux; |
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} |
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} else {
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int weigh = item.weigh;
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try {
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Point pointFromLabel = item.geom.centroid();
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Point pointGeome = geome.centroid();
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item.geom = GeometryLocator.getGeometryManager().createPoint( |
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(pointFromLabel.getX()*weigh + pointGeome.getX())/(weigh+1),
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(pointFromLabel.getY()*weigh + pointGeome.getY())/(weigh+1),
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Geometry.SUBTYPES.GEOM2D); |
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} catch (Exception ex) { |
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throw new ReadException(layer.getFeatureStore().getProviderName(), ex); |
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} |
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|
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} |
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} else {
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item.geom = geome; |
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} |
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item.weigh++; |
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} else {
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// Check if size is a pixel
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if (isOnePoint(viewPort, geome)) {
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continue;
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} |
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// lc.toCartographicSize(viewPort, dpi, null);
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|
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try {
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drawLabelInGeom( |
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targetBI, targetGr, |
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lc, placement, |
| 454 |
viewPort, geome, cancel, dpi, |
| 455 |
bLabelsReallocatable); |
| 456 |
} catch (GeometryException e) {
|
| 457 |
throw new ReadException( |
| 458 |
layer.getFeatureStore().getProviderName(), e); |
| 459 |
} |
| 460 |
placedCount++; |
| 461 |
} |
| 462 |
} |
| 463 |
|
| 464 |
// ======= End iteration in feature set ====================
|
| 465 |
|
| 466 |
if (duplicateMode == IPlacementConstraints.REMOVE_DUPLICATE_LABELS) {
|
| 467 |
Iterator<String[]> textsIt = labelsToPlace.keySet().iterator(); |
| 468 |
while ( !cancel.isCanceled() && textsIt.hasNext()) {
|
| 469 |
notPlacedCount++; |
| 470 |
String[] texts = textsIt.next(); |
| 471 |
|
| 472 |
GeometryItem item = labelsToPlace.get(texts); |
| 473 |
if(item != null){ |
| 474 |
lc.setTexts(texts); |
| 475 |
// Check if size is a pixel
|
| 476 |
if (isOnePoint(viewPort, item.geom)) {
|
| 477 |
continue;
|
| 478 |
} |
| 479 |
|
| 480 |
// lc.toCartographicSize(viewPort, dpi, null);
|
| 481 |
try {
|
| 482 |
drawLabelInGeom(targetBI, targetGr, |
| 483 |
lc, placement, viewPort, item.geom, |
| 484 |
cancel, dpi, bLabelsReallocatable); |
| 485 |
} catch (GeometryException e) {
|
| 486 |
throw new ReadException( |
| 487 |
layer.getFeatureStore().getProviderName(), e); |
| 488 |
} |
| 489 |
} |
| 490 |
} |
| 491 |
} |
| 492 |
|
| 493 |
if (bLabelsReallocatable) {
|
| 494 |
targetGr.translate(x, y); |
| 495 |
if (mapImage!=null) { |
| 496 |
// Graphics2D aux = (Graphics2D) mapImage.getGraphics();
|
| 497 |
mapGraphics.drawImage(overlapDetectImage, null, null); |
| 498 |
} else {
|
| 499 |
mapGraphics.drawImage(overlapDetectImage, null, null); |
| 500 |
} |
| 501 |
} |
| 502 |
|
| 503 |
|
| 504 |
} // big iteration
|
| 505 |
// double totalTime = (System.currentTimeMillis()-t1);
|
| 506 |
//
|
| 507 |
// int total = placedCount+notPlacedCount;
|
| 508 |
//
|
| 509 |
// if (total>0)
|
| 510 |
// Logger.getLogger(getClass()).info("Labeled layer '"+layer.getName()+
|
| 511 |
// "' "+totalTime/1000D+" seconds. "+placedCount+"/"+total+
|
| 512 |
// " labels placed ("+NumberFormat.getInstance().
|
| 513 |
// format(100*placedCount/(double) total)+"%)");
|
| 514 |
//
|
| 515 |
// if (cancel.isCanceled()) {
|
| 516 |
// Logger.getLogger(getClass()).info("Layer labeling canceled: '"+
|
| 517 |
// layer.getName()+"'");
|
| 518 |
// } else {
|
| 519 |
// Logger.getLogger(getClass()).info("Total labels parse time = "+
|
| 520 |
// parseTime+" ("+NumberFormat.getInstance().
|
| 521 |
// format(parseTime*100/totalTime)+"%)");
|
| 522 |
// }
|
| 523 |
|
| 524 |
} |
| 525 |
|
| 526 |
|
| 527 |
private void drawLabelInGeom( |
| 528 |
BufferedImage targetBI, Graphics2D targetGr, ILabelClass lc, |
| 529 |
ILabelPlacement placement, ViewPort viewPort, Geometry geom, |
| 530 |
Cancellable cancel, |
| 531 |
double dpi, boolean bLabelsReallocatable) throws GeometryException { |
| 532 |
|
| 533 |
lc.toCartographicSize(viewPort, dpi, null);
|
| 534 |
ArrayList<LabelLocationMetrics> llm = null; |
| 535 |
llm = placement.guess( |
| 536 |
lc, |
| 537 |
geom, |
| 538 |
getPlacementConstraints(), |
| 539 |
0,
|
| 540 |
cancel,viewPort); |
| 541 |
|
| 542 |
setReferenceSystem(lc.getReferenceSystem()); |
| 543 |
setUnit(lc.getUnit()); |
| 544 |
|
| 545 |
/*
|
| 546 |
* Esto provoca errores en el calculo del tama?o de la LabelClass
|
| 547 |
* as? que se ha diferido el calculo del tama?o con que deber?a
|
| 548 |
* dibujarse el texto justo hasta el momento en que se dibuja ?ste,
|
| 549 |
* en el metodo draw de la LabelClass.
|
| 550 |
*
|
| 551 |
* FIXME: Mantengo el c?digo viejo comentarizado para enfatizar
|
| 552 |
* este comentario. Eliminar cuando se asuma que es correcto el cambio.
|
| 553 |
*
|
| 554 |
*/
|
| 555 |
|
| 556 |
// double sizeBefore = lc.getTextSymbol().getFont().getSize();
|
| 557 |
|
| 558 |
// sizeAfter = CartographicSupportToolkit.getCartographicLength(this,
|
| 559 |
// sizeBefore,
|
| 560 |
// viewPort,
|
| 561 |
// MapContext.getScreenDPI());
|
| 562 |
|
| 563 |
|
| 564 |
/*
|
| 565 |
* search if there is room left by the previous and
|
| 566 |
* with more priority labels, then check the current
|
| 567 |
* level
|
| 568 |
*/
|
| 569 |
// if (
|
| 570 |
lookupAndPlaceLabel(targetBI, targetGr, llm, |
| 571 |
placement, lc, geom, viewPort, cancel, bLabelsReallocatable); //{
|
| 572 |
|
| 573 |
// lc.getTextSymbol().setFontSize(sizeBefore);
|
| 574 |
// }
|
| 575 |
// lc.toCartographicSize(viewPort, dpi, null);
|
| 576 |
|
| 577 |
} |
| 578 |
|
| 579 |
private int getDuplicateLabelsMode() { |
| 580 |
if (getPlacementConstraints() == null) { |
| 581 |
return IPlacementConstraints.DefaultDuplicateLabelsMode;
|
| 582 |
} |
| 583 |
return getPlacementConstraints().getDuplicateLabelsMode();
|
| 584 |
} |
| 585 |
|
| 586 |
private boolean lookupAndPlaceLabel(BufferedImage bi, Graphics2D g, |
| 587 |
ArrayList<LabelLocationMetrics> llm, ILabelPlacement placement,
|
| 588 |
ILabelClass lc, Geometry geom, ViewPort viewPort, |
| 589 |
Cancellable cancel, boolean bLabelsReallocatable)
|
| 590 |
throws GeometryException {
|
| 591 |
|
| 592 |
int i;
|
| 593 |
for (i = 0; !cancel.isCanceled() && i < llm.size(); i++) { |
| 594 |
LabelLocationMetrics labelMetrics = llm.get(i); |
| 595 |
|
| 596 |
IPlacementConstraints pc = getPlacementConstraints(); |
| 597 |
if(pc instanceof MultiShapePlacementConstraints) { |
| 598 |
MultiShapePlacementConstraints mpc = (MultiShapePlacementConstraints)pc; |
| 599 |
|
| 600 |
GeometryManager gm = GeometryLocator.getGeometryManager(); |
| 601 |
GeometryType line_gt = null;
|
| 602 |
GeometryType polyg_gt = null;
|
| 603 |
GeometryType geom_gt = null;
|
| 604 |
|
| 605 |
line_gt = gm.getGeometryType(TYPES.CURVE, SUBTYPES.GEOM2D); |
| 606 |
polyg_gt = gm.getGeometryType(TYPES.SURFACE, SUBTYPES.GEOM2D); |
| 607 |
geom_gt = gm.getGeometryType(geom.getType(), SUBTYPES.GEOM2D); |
| 608 |
|
| 609 |
if (geom_gt.getType() == TYPES.POINT ||
|
| 610 |
geom_gt.getType() == TYPES.MULTIPOINT) {
|
| 611 |
pc = mpc.getPointConstraints(); |
| 612 |
} else {
|
| 613 |
if (geom_gt.isTypeOf(TYPES.CURVE) ||
|
| 614 |
geom_gt.getType() == TYPES.MULTICURVE) {
|
| 615 |
pc = mpc.getLineConstraints(); |
| 616 |
} else {
|
| 617 |
if (geom_gt.isTypeOf(TYPES.SURFACE) ||
|
| 618 |
geom_gt.getType() == TYPES.MULTISURFACE) {
|
| 619 |
pc = mpc.getPolygonConstraints(); |
| 620 |
} |
| 621 |
} |
| 622 |
} |
| 623 |
} |
| 624 |
|
| 625 |
/*
|
| 626 |
* Ver comentario en el metodo drawLabelInGeom
|
| 627 |
*/
|
| 628 |
// lc.getTextSymbol().setFontSize(sizeAfter);// * FConstant.FONT_HEIGHT_SCALE_FACTOR);
|
| 629 |
if (bLabelsReallocatable) {
|
| 630 |
|
| 631 |
Geometry aux_geom = null;
|
| 632 |
aux_geom = lc.getShape(labelMetrics); |
| 633 |
|
| 634 |
if (!isOverlapping(bi, aux_geom)) {
|
| 635 |
|
| 636 |
if(!pc.isFollowingLine()){
|
| 637 |
lc.draw(g, labelMetrics, geom); |
| 638 |
} else {
|
| 639 |
|
| 640 |
ILabelClass smsLc = new SmartTextSymbolLabelClass();
|
| 641 |
SmartTextSymbol sms = new SmartTextSymbol(lc.getTextSymbol(), pc);
|
| 642 |
|
| 643 |
double sizeBefore = lc.getTextSymbol().getFont().getSize();
|
| 644 |
double sizeAfter = SymbolUtils.getCartographicLength(this, |
| 645 |
sizeBefore, |
| 646 |
viewPort, |
| 647 |
MapContext.getScreenDPI()); |
| 648 |
sms.setFontSize(sizeAfter); |
| 649 |
|
| 650 |
smsLc.setTextSymbol(sms); |
| 651 |
geom.transform(viewPort.getAffineTransform()); |
| 652 |
smsLc.draw(g, null, geom);
|
| 653 |
sms.setFontSize(sizeBefore); |
| 654 |
|
| 655 |
} |
| 656 |
return true; |
| 657 |
} |
| 658 |
} else {
|
| 659 |
if(!pc.isFollowingLine()){
|
| 660 |
lc.draw(g, labelMetrics, null);
|
| 661 |
} |
| 662 |
else{
|
| 663 |
ILabelClass smsLc = new SmartTextSymbolLabelClass();
|
| 664 |
SmartTextSymbol sms = new SmartTextSymbol(lc.getTextSymbol(),pc);
|
| 665 |
|
| 666 |
double sizeBefore = lc.getTextSymbol().getFont().getSize();
|
| 667 |
double sizeAfter = SymbolUtils.getCartographicLength(this, |
| 668 |
sizeBefore, |
| 669 |
viewPort, |
| 670 |
MapContext.getScreenDPI()); |
| 671 |
sms.setFontSize(sizeAfter); |
| 672 |
|
| 673 |
smsLc.setTextSymbol(sms); |
| 674 |
geom.transform(viewPort.getAffineTransform()); |
| 675 |
smsLc.draw(g, null, geom);
|
| 676 |
|
| 677 |
sms.setFontSize(sizeBefore); |
| 678 |
} |
| 679 |
return true; |
| 680 |
} |
| 681 |
} |
| 682 |
return false; |
| 683 |
} |
| 684 |
|
| 685 |
/**
|
| 686 |
* Divide una cadena de caracteres por el caracter dos puntos
|
| 687 |
* siempre que no est? entre comillas.
|
| 688 |
*
|
| 689 |
* @param str
|
| 690 |
* Cadena de caracteres
|
| 691 |
*
|
| 692 |
* @return String[]
|
| 693 |
*
|
| 694 |
*/
|
| 695 |
private String[] divideExpression(String str){ |
| 696 |
ArrayList<String> r = new ArrayList<String>(); |
| 697 |
boolean inQuotationMarks = false; |
| 698 |
int lastIndex = 0; |
| 699 |
for(int i=0; i<str.length(); i++){ |
| 700 |
if(str.substring(i, i+1).compareTo("\"")==0){ |
| 701 |
inQuotationMarks = !inQuotationMarks; |
| 702 |
continue;
|
| 703 |
} |
| 704 |
if(str.substring(i, i+1).compareTo(":")==0 && !inQuotationMarks){ |
| 705 |
if(lastIndex < i){
|
| 706 |
r.add(str.substring(lastIndex, i)); |
| 707 |
} |
| 708 |
lastIndex = i+1;
|
| 709 |
} |
| 710 |
} |
| 711 |
if(lastIndex < str.length()-1){ |
| 712 |
r.add(str.substring(lastIndex)); |
| 713 |
} |
| 714 |
String[] result = new String[r.size()]; |
| 715 |
r.toArray(result); |
| 716 |
return result;
|
| 717 |
} |
| 718 |
|
| 719 |
/**
|
| 720 |
* Compute the texts to show in the label and store them in LabelClass.
|
| 721 |
*/
|
| 722 |
@SuppressWarnings("unchecked") |
| 723 |
private boolean setupLabel(Feature featu, ILabelClass lc, |
| 724 |
Cancellable cancel, String[] usedFields, ViewPort viewPort, |
| 725 |
double dpi, int duplicateMode){//, TreeSet<?> placedLabels) { |
| 726 |
|
| 727 |
// Value[] vv = feat.getAttributes();
|
| 728 |
String expr = lc.getStringLabelExpression();
|
| 729 |
|
| 730 |
long pt1 = System.currentTimeMillis(); |
| 731 |
String[] texts = NO_TEXT; |
| 732 |
ArrayList<String> preTexts = new ArrayList<String>(); |
| 733 |
// String[] texts = {PluginServices.getText(this, "text_field")};
|
| 734 |
try {
|
| 735 |
|
| 736 |
for (int i = 0; !cancel.isCanceled() && i < usedFields.length; i++) { |
| 737 |
try {
|
| 738 |
symbol_table.put(usedFields[i], featu.get(usedFields[i])); |
| 739 |
} catch (Exception e) { |
| 740 |
logger.error("While geatting feature values.", e);
|
| 741 |
} |
| 742 |
} |
| 743 |
|
| 744 |
if (expr != null) { |
| 745 |
|
| 746 |
if (expr.equals("")) { |
| 747 |
expr = texts[0];
|
| 748 |
} |
| 749 |
|
| 750 |
String[] multiexpr = divideExpression(expr); |
| 751 |
for (int i=0; i<multiexpr.length; i++) { |
| 752 |
|
| 753 |
expr = multiexpr[i]; |
| 754 |
Object res = LabelClassUtils.evaluate(expr, featu.getEvaluatorData());
|
| 755 |
if (res != null) { |
| 756 |
preTexts.add(res.toString()); |
| 757 |
} else {
|
| 758 |
preTexts.add(expr); |
| 759 |
} |
| 760 |
} |
| 761 |
texts = new String[preTexts.size()]; |
| 762 |
preTexts.toArray(texts); |
| 763 |
parseTime += System.currentTimeMillis()-pt1;
|
| 764 |
} |
| 765 |
lc.setTexts(texts); |
| 766 |
|
| 767 |
} catch (Exception e) { |
| 768 |
logger.error("While setting up label", e);
|
| 769 |
return false; |
| 770 |
} |
| 771 |
return true; |
| 772 |
} |
| 773 |
|
| 774 |
private Hashtable<String, Object> symbol_table = new Hashtable<String, Object>(); |
| 775 |
|
| 776 |
|
| 777 |
/*
|
| 778 |
private Expression getEvaluator(String strExpr) {
|
| 779 |
Expression expr = evaluators.get(strExpr);
|
| 780 |
if (expr == null) {
|
| 781 |
LabelExpressionParser p = new LabelExpressionParser(
|
| 782 |
new StringReader(strExpr),symbol_table);
|
| 783 |
|
| 784 |
try {
|
| 785 |
p.LabelExpression();
|
| 786 |
} catch (ParseException e) {
|
| 787 |
logger.error("While getting expression.", e);
|
| 788 |
}
|
| 789 |
expr = (Expression) p.getStack().pop();
|
| 790 |
evaluators.put(strExpr, expr);
|
| 791 |
}
|
| 792 |
return expr;
|
| 793 |
}
|
| 794 |
*/
|
| 795 |
|
| 796 |
private boolean isOverlapping(BufferedImage bi, Geometry lblgeom) { |
| 797 |
|
| 798 |
if (lblgeom==null || lblgeom.getType() == TYPES.NULL) { |
| 799 |
return false; |
| 800 |
} |
| 801 |
|
| 802 |
Envelope rPixels = lblgeom.getEnvelope(); |
| 803 |
int minx = (int) rPixels.getMinimum(0); |
| 804 |
int miny = (int) rPixels.getMinimum(1); |
| 805 |
int maxx = (int) rPixels.getMaximum(0); |
| 806 |
int maxy = (int) rPixels.getMaximum(1); |
| 807 |
|
| 808 |
for (int i = minx; i <= maxx; i++) { |
| 809 |
for (int j = miny; j <= maxy; j++) { |
| 810 |
|
| 811 |
if (!lblgeom.contains(i, j)
|
| 812 |
// contains seems to don't detect points
|
| 813 |
// placed in the rectangle boundaries
|
| 814 |
&& !lblgeom.intersects(i, j, i, j)) {
|
| 815 |
continue;
|
| 816 |
} |
| 817 |
|
| 818 |
if (i<0 || j<0) { |
| 819 |
continue;
|
| 820 |
} |
| 821 |
|
| 822 |
if (bi.getWidth()<i+1 || bi.getHeight()<j+1) { |
| 823 |
continue;
|
| 824 |
} |
| 825 |
|
| 826 |
if (bi.getRGB(i,j)!=0){ |
| 827 |
return true; |
| 828 |
} |
| 829 |
} |
| 830 |
} |
| 831 |
return false; |
| 832 |
} |
| 833 |
|
| 834 |
private boolean isOnePoint(ViewPort viewPort, Geometry geom) { |
| 835 |
|
| 836 |
boolean onePoint = false; |
| 837 |
int shapeType = geom.getType();
|
| 838 |
|
| 839 |
if (shapeType != TYPES.POINT && shapeType != TYPES.MULTIPOINT) {
|
| 840 |
|
| 841 |
Envelope env = geom.getEnvelope(); |
| 842 |
double dist1Pixel = viewPort.getDist1pixel();
|
| 843 |
onePoint = (env.getLength(0) <= dist1Pixel
|
| 844 |
&& env.getLength(1) <= dist1Pixel);
|
| 845 |
} |
| 846 |
return onePoint;
|
| 847 |
} |
| 848 |
|
| 849 |
|
| 850 |
public boolean isAllowingOverlap() { |
| 851 |
return allowOverlapping;
|
| 852 |
} |
| 853 |
|
| 854 |
public void setAllowOverlapping(boolean allowOverlapping) { |
| 855 |
this.allowOverlapping = allowOverlapping;
|
| 856 |
} |
| 857 |
|
| 858 |
public IPlacementConstraints getPlacementConstraints() {
|
| 859 |
if (placementConstraints != null) |
| 860 |
return placementConstraints;
|
| 861 |
|
| 862 |
GeometryType gt = null;
|
| 863 |
|
| 864 |
try {
|
| 865 |
gt = layer.getGeometryType(); |
| 866 |
// force 2d for comparison
|
| 867 |
gt = GeometryLocator.getGeometryManager().getGeometryType( |
| 868 |
gt.getType(), SUBTYPES.GEOM2D); |
| 869 |
} catch (Exception e) { |
| 870 |
logger.error("While getting placements constraints.", e);
|
| 871 |
return null; |
| 872 |
} |
| 873 |
|
| 874 |
if (gt.isTypeOf(TYPES.POINT)
|
| 875 |
|| gt.isTypeOf(TYPES.MULTIPOINT)) {
|
| 876 |
return DefaultPointPlacementConstraints;
|
| 877 |
} else {
|
| 878 |
if (gt.isTypeOf(TYPES.CURVE)
|
| 879 |
|| gt.isTypeOf(TYPES.MULTICURVE)) {
|
| 880 |
return DefaultLinePlacementConstraints;
|
| 881 |
} else {
|
| 882 |
if (gt.isTypeOf(TYPES.SURFACE)
|
| 883 |
|| gt.isTypeOf(TYPES.MULTISURFACE)) {
|
| 884 |
return DefaultPolygonPlacementConstraints;
|
| 885 |
} else {
|
| 886 |
if (gt.isTypeOf(TYPES.AGGREGATE) ||
|
| 887 |
gt.isTypeOf(TYPES.GEOMETRY)) {
|
| 888 |
DefaultMultiShapePlacementConstratints.setPointConstraints(DefaultPointPlacementConstraints); |
| 889 |
DefaultMultiShapePlacementConstratints.setLineConstraints(DefaultLinePlacementConstraints); |
| 890 |
DefaultMultiShapePlacementConstratints.setPolygonConstraints(DefaultPolygonPlacementConstraints); |
| 891 |
return DefaultMultiShapePlacementConstratints;
|
| 892 |
} |
| 893 |
} |
| 894 |
} |
| 895 |
} |
| 896 |
return null; |
| 897 |
} |
| 898 |
|
| 899 |
public void setPlacementConstraints(IPlacementConstraints constraints) { |
| 900 |
this.placementConstraints = constraints;
|
| 901 |
} |
| 902 |
|
| 903 |
public IZoomConstraints getZoomConstraints() {
|
| 904 |
return zoomConstraints;
|
| 905 |
} |
| 906 |
|
| 907 |
public void setZoomConstraints(IZoomConstraints constraints) { |
| 908 |
this.zoomConstraints = constraints;
|
| 909 |
} |
| 910 |
|
| 911 |
public void print( |
| 912 |
Graphics2D g, ViewPort viewPort,
|
| 913 |
Cancellable cancel, PrintAttributes properties) |
| 914 |
throws ReadException {
|
| 915 |
|
| 916 |
double dpi = 100; |
| 917 |
int pq = properties.getPrintQuality();
|
| 918 |
if (pq == PrintAttributes.PRINT_QUALITY_NORMAL){
|
| 919 |
dpi = 300;
|
| 920 |
} else if (pq == PrintAttributes.PRINT_QUALITY_HIGH){ |
| 921 |
dpi = 600;
|
| 922 |
} else if (pq == PrintAttributes.PRINT_QUALITY_DRAFT){ |
| 923 |
dpi = 72;
|
| 924 |
} |
| 925 |
|
| 926 |
viewPort.setOffset(new Point2D.Double(0,0)); |
| 927 |
|
| 928 |
/* signal printing output */
|
| 929 |
printMode = true;
|
| 930 |
|
| 931 |
draw(null,g,viewPort,cancel,dpi);
|
| 932 |
} |
| 933 |
|
| 934 |
public String[] getUsedFields() { |
| 935 |
|
| 936 |
/*
|
| 937 |
* TODO Solve the problem with the [ and ].
|
| 938 |
* Currently SQLJEP evaluator cannot tell which
|
| 939 |
* fields are being used. Options: allow [] and remove them or
|
| 940 |
* maybe while parsing the SQLJEP evaluator can inform with events like
|
| 941 |
* "I have found a field"
|
| 942 |
*
|
| 943 |
*/
|
| 944 |
|
| 945 |
FeatureAttributeDescriptor[] atts = null; |
| 946 |
try {
|
| 947 |
atts = layer.getFeatureStore().getDefaultFeatureType().getAttributeDescriptors(); |
| 948 |
} catch (DataException e) {
|
| 949 |
logger.error("While getting atributes.", e);
|
| 950 |
} |
| 951 |
|
| 952 |
int n = atts.length;
|
| 953 |
String[] resp = new String[n]; |
| 954 |
for (int i=0; i<n; i++) { |
| 955 |
resp[i] = atts[i].getName(); |
| 956 |
} |
| 957 |
return resp;
|
| 958 |
|
| 959 |
/*
|
| 960 |
ILabelClass[] lcs = method.getLabelClasses();
|
| 961 |
ArrayList<String> fieldNames = new ArrayList<String>();
|
| 962 |
for (int i = 0; i < lcs.length; i++) {
|
| 963 |
if(lcs[i].getLabelExpressions() != null){
|
| 964 |
for (int j = 0; j < lcs[i].getLabelExpressions().length; j++) {
|
| 965 |
String expr = lcs[i].getLabelExpressions()[j];
|
| 966 |
int start;
|
| 967 |
while (expr != null &&
|
| 968 |
(start = expr.indexOf("[")) != -1) {
|
| 969 |
int end = expr.indexOf("]");
|
| 970 |
String field = expr.substring(start+1, end).trim();
|
| 971 |
if (!fieldNames.contains(field))
|
| 972 |
fieldNames.add(field);
|
| 973 |
expr = expr.substring(end+1, expr.length());
|
| 974 |
}
|
| 975 |
}
|
| 976 |
}
|
| 977 |
}
|
| 978 |
return fieldNames.toArray(new String[fieldNames.size()]);
|
| 979 |
*/
|
| 980 |
} |
| 981 |
|
| 982 |
|
| 983 |
public boolean shouldDrawLabels(double scale) { |
| 984 |
double minScaleView = -1; |
| 985 |
double maxScaleView = -1; |
| 986 |
|
| 987 |
if (zoomConstraints != null) { |
| 988 |
minScaleView = zoomConstraints.getMinScale(); |
| 989 |
maxScaleView = zoomConstraints.getMaxScale(); |
| 990 |
} |
| 991 |
|
| 992 |
if (minScaleView == -1 && maxScaleView == -1) { |
| 993 |
// parameters not set, so the layer decides.
|
| 994 |
return layer.isWithinScale(scale);
|
| 995 |
} |
| 996 |
|
| 997 |
if (minScaleView >= scale) {
|
| 998 |
return (maxScaleView != -1) ? maxScaleView <= scale : true; |
| 999 |
} |
| 1000 |
|
| 1001 |
return false; |
| 1002 |
} |
| 1003 |
|
| 1004 |
public void setUnit(int unitIndex) { |
| 1005 |
unit = unitIndex; |
| 1006 |
|
| 1007 |
} |
| 1008 |
|
| 1009 |
public int getUnit() { |
| 1010 |
return unit;
|
| 1011 |
} |
| 1012 |
|
| 1013 |
public int getReferenceSystem() { |
| 1014 |
return referenceSystem;
|
| 1015 |
} |
| 1016 |
|
| 1017 |
public void setReferenceSystem(int referenceSystem) { |
| 1018 |
this.referenceSystem = referenceSystem;
|
| 1019 |
} |
| 1020 |
|
| 1021 |
public static void registerPersistent() { |
| 1022 |
|
| 1023 |
PersistenceManager manager = ToolsLocator.getPersistenceManager(); |
| 1024 |
if (manager.getDefinition(GENERAL_LABEL_STRATEGY_PERSISTENCE_NAME) == null) { |
| 1025 |
DynStruct definition = manager.addDefinition( |
| 1026 |
GeneralLabelingStrategy.class, |
| 1027 |
GENERAL_LABEL_STRATEGY_PERSISTENCE_NAME, |
| 1028 |
GENERAL_LABEL_STRATEGY_PERSISTENCE_NAME+" Persistence definition",
|
| 1029 |
null,
|
| 1030 |
null);
|
| 1031 |
definition.addDynFieldObject("labelingMethod")
|
| 1032 |
.setClassOfValue(ILabelingMethod.class).setMandatory(true);
|
| 1033 |
definition.addDynFieldObject("placementConstraints")
|
| 1034 |
.setClassOfValue(IPlacementConstraints.class).setMandatory(false);
|
| 1035 |
definition.addDynFieldObject("zoomConstraints")
|
| 1036 |
.setClassOfValue(IZoomConstraints.class).setMandatory(false);
|
| 1037 |
|
| 1038 |
definition.addDynFieldBoolean("allowOverlapping").setMandatory(true); |
| 1039 |
definition.addDynFieldInt("unit").setMandatory(true); |
| 1040 |
definition.addDynFieldInt("referenceSystem").setMandatory(true); |
| 1041 |
} |
| 1042 |
} |
| 1043 |
|
| 1044 |
|
| 1045 |
public void loadFromState(PersistentState state) throws PersistenceException { |
| 1046 |
|
| 1047 |
method = (ILabelingMethod) state.get("labelingMethod");
|
| 1048 |
|
| 1049 |
if (state.hasValue("placementConstraints")) { |
| 1050 |
placementConstraints = |
| 1051 |
(IPlacementConstraints) state.get("placementConstraints");
|
| 1052 |
} |
| 1053 |
|
| 1054 |
if (state.hasValue("zoomConstraints")) { |
| 1055 |
zoomConstraints = (IZoomConstraints) state.get("zoomConstraints");
|
| 1056 |
} |
| 1057 |
|
| 1058 |
this.allowOverlapping = state.getBoolean("allowOverlapping"); |
| 1059 |
this.unit = state.getInt("unit"); |
| 1060 |
this.referenceSystem = state.getInt("referenceSystem"); |
| 1061 |
} |
| 1062 |
|
| 1063 |
public void saveToState(PersistentState state) throws PersistenceException { |
| 1064 |
|
| 1065 |
state.set("labelingMethod", method);
|
| 1066 |
|
| 1067 |
if (placementConstraints != null) { |
| 1068 |
state.set("placementConstraints", placementConstraints);
|
| 1069 |
} |
| 1070 |
|
| 1071 |
if (zoomConstraints != null) { |
| 1072 |
state.set("zoomConstraints", zoomConstraints);
|
| 1073 |
} |
| 1074 |
|
| 1075 |
state.set("allowOverlapping", allowOverlapping);
|
| 1076 |
state.set("unit", unit);
|
| 1077 |
state.set("referenceSystem", referenceSystem);
|
| 1078 |
|
| 1079 |
} |
| 1080 |
|
| 1081 |
public double toCartographicSize(ViewPort vp, double dpi, Geometry geom) { |
| 1082 |
/*
|
| 1083 |
* This method is not used but we must implement CartographicSupport
|
| 1084 |
*/
|
| 1085 |
return 0; |
| 1086 |
} |
| 1087 |
|
| 1088 |
public void setCartographicSize(double cartographicSize, Geometry geom) { |
| 1089 |
/*
|
| 1090 |
* This method is not used but we must implement CartographicSupport
|
| 1091 |
*/
|
| 1092 |
} |
| 1093 |
|
| 1094 |
public double getCartographicSize(ViewPort vp, double dpi, Geometry geom) { |
| 1095 |
/*
|
| 1096 |
* This method is not used but we must implement CartographicSupport
|
| 1097 |
*/
|
| 1098 |
return 0; |
| 1099 |
} |
| 1100 |
|
| 1101 |
public Object clone() throws CloneNotSupportedException { |
| 1102 |
return LabelClassUtils.clone(this); |
| 1103 |
} |
| 1104 |
|
| 1105 |
|
| 1106 |
} |