root / branches / v2_0_0_prep / extensions / org.gvsig.symbology / src / main / java / org / gvsig / symbology / fmap / mapcontext / rendering / legend / styling / LabelClass.java @ 32880
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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: LabelClass.java 13953 2007-09-21 12:26:04Z jaume $
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* $Log$
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* Revision 1.14 2007-09-21 12:26:04 jaume
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* cancellation support extended down to the IGeometry and ISymbol level
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*
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* Revision 1.13 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 1.12 2007/08/22 09:48:13 jvidal
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* javadoc
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*
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* Revision 1.11 2007/05/09 11:04:58 jaume
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* refactored legend hierarchy
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*
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* Revision 1.10 2007/05/08 08:47:40 jaume
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* *** empty log message ***
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*
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* Revision 1.9 2007/04/26 11:41:00 jaume
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* attempting to let defining size in world units
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*
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* Revision 1.8 2007/04/18 15:35:11 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 2007/04/05 16:07:14 jaume
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* Styled labeling stuff
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*
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* Revision 1.3 2007/04/02 16:34:56 jaume
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* Styled labeling (start commiting)
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*
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* Revision 1.2 2007/03/09 08:33:43 jaume
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* *** empty log message ***
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*
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* Revision 1.1.2.6 2007/02/15 16:23:44 jaume
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* *** empty log message ***
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*
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* Revision 1.1.2.5 2007/02/09 07:47:05 jaume
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* Isymbol moved
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*
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* Revision 1.1.2.4 2007/02/02 16:21:24 jaume
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* start commiting labeling stuff
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*
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* Revision 1.1.2.3 2007/02/01 17:46:49 jaume
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* *** empty log message ***
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*
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* Revision 1.1.2.2 2007/02/01 11:42:47 jaume
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* *** empty log message ***
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*
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* Revision 1.1.2.1 2007/01/30 18:10:45 jaume
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* start commiting labeling stuff
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*
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*
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*/
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package org.gvsig.symbology.fmap.mapcontext.rendering.legend.styling; |
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import java.awt.Dimension; |
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import java.awt.Graphics2D; |
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import java.awt.Rectangle; |
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import java.awt.Shape; |
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import java.awt.geom.AffineTransform; |
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import java.awt.geom.Point2D; |
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import java.awt.geom.Rectangle2D; |
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import org.gvsig.fmap.geom.Geometry; |
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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.Geometry.SUBTYPES; |
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import org.gvsig.fmap.geom.exception.CreateGeometryException; |
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import org.gvsig.fmap.geom.primitive.GeneralPathX; |
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import org.gvsig.fmap.mapcontext.ViewPort; |
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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.ILabelLocationMetrics; |
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import org.gvsig.fmap.mapcontext.rendering.symbols.CartographicSupport; |
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import org.gvsig.fmap.mapcontext.rendering.symbols.ITextSymbol; |
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import org.gvsig.fmap.mapcontext.rendering.symbols.SymbolDrawingException; |
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import org.gvsig.fmap.mapcontext.rendering.symbols.styles.ILabelStyle; |
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import org.gvsig.symbology.fmap.mapcontext.rendering.symbol.impl.CartographicSupportToolkit; |
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import org.gvsig.symbology.fmap.mapcontext.rendering.symbol.text.impl.SimpleTextSymbol; |
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import org.gvsig.tools.ToolsLocator; |
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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.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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/**
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*
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* LabelClass is the model of the label in the new simbology of gvSIG. In this
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* class is contained its definition, the expresion that defines the text which
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* is going to be showed, if it will be visible or not, the text symbol that is
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* going to paint the label and the style for its background.
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*
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* @author jaume dominguez faus - jaume.dominguez@iver.es
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*/
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public class LabelClass implements ILabelClass { |
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private static final String FIELD_REFERENCE_SYSTEM = "referenceSystem"; |
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private static final String FIELD_UNIT = "unit"; |
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private static final String FIELD_SQL_QUERY = "sqlQuery"; |
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private static final String FIELD_SCALE = "scale"; |
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private static final String FIELD_PRIORITY = "priority"; |
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private static final String FIELD_TEXTS = "texts"; |
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private static final String FIELD_LABEL_STYLE = "labelStyle"; |
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private static final String FIELD_VISIBLE = "visible"; |
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private static final String FIELD_LABEL_EXPRESSION = "labelExpression"; |
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private static final String FIELD_TEXT_SYMBOL = "textSymbol"; |
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private static final String FIELD_NAME = "name"; |
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private static final GeometryManager geomManager = GeometryLocator.getGeometryManager(); |
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private static final Logger logger = LoggerFactory.getLogger(GeometryManager.class); |
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private static final String LABEL_CLASS_DYNCLASS_NAME = "LabelClass"; |
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private String name; |
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private ITextSymbol textSymbol;
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private String labelExpression; |
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private boolean isVisible = true; |
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private ILabelStyle labelStyle;
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private String[] texts; |
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private int priority; |
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private double scale = 1; |
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private String sqlQuery; |
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private int unit = CartographicSupportToolkit.DefaultMeasureUnit; |
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private int referenceSystem = |
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CartographicSupportToolkit.DefaultReferenceSystem; |
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/**
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* Returns true if the label will be showed in the map
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*
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* @return isVisible boolean
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*/
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public boolean isVisible() { |
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return isVisible;
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} |
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/**
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* Sets the visibility of the label in the map.
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*
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* @param isVisible boolean
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*/
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public void setVisible(boolean isVisible) { |
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this.isVisible = isVisible;
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} |
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/**
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* Returns the expression that defines the text which will be showed in
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* the label
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*
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* @return labelExpression String
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*/
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public String getLabelExpression() { |
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return labelExpression;
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} |
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/**
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* Stablishes the expresion that, when it is evaluated, returns the text
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* which will be showed by the label.
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*
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* @param labelExpression String
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*/
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public void setLabelExpression(String labelExpression) { |
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this.labelExpression = labelExpression;
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} |
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/**
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* Returns the text symbol that is being used for the text(the font,
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* size,style,aligment)
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*
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* @return label ITextSymbol
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*/
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public ITextSymbol getTextSymbol() {
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if (textSymbol == null) { |
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textSymbol = new SimpleTextSymbol();
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} |
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return textSymbol;
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} |
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private Dimension getSize() { |
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if (labelStyle == null) { |
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if (texts!=null && texts.length >0) { |
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String t = ""; |
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for (int i = 0; i < texts.length; i++) { |
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t += texts[i]; |
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} |
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getTextSymbol().setText(t); |
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} |
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Rectangle bounds = getTextSymbol().getBounds();
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bounds.setLocation( |
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(int) Math.round(bounds.getX()), |
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(int) Math.round(bounds.getY()+bounds.getHeight())); |
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return new Dimension(bounds.width, bounds.height); |
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} else {
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labelStyle.setTextFields(texts); |
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return labelStyle.getSize();
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} |
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} |
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/**
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* Stablishes the text symbol that is going to be used for the text(the
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* font,size,style,aligment)
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*
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* @param textSymbol ITextSymbol
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*/
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public void setTextSymbol(ITextSymbol textSymbol) { |
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this.textSymbol = textSymbol;
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if (textSymbol == null) { |
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this.textSymbol = new SimpleTextSymbol(); |
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} |
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setReferenceSystem(referenceSystem); |
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setUnit(unit); |
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} |
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/**
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* Stablishes the style for the label.
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*
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* @param labelStyle ILabelStyle
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*/
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public void setLabelStyle(ILabelStyle labelStyle) { |
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this.labelStyle = labelStyle;
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} |
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/**
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* Returns the style of the label
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*
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*/
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public ILabelStyle getLabelStyle() {
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return this.labelStyle; |
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} |
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/**
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* Returns the name of the label
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*
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*/
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public String getName() { |
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return name;
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} |
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/**
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* Stablishes the name of the label
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* @param name
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*/
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public void setName(String name) { |
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this.name = name;
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} |
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public String toString() { |
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// for debugging
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// return name+"{label expression="+labelExpression+", visible="+isVisible+", priority="+priority+"}";
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return getName();
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} |
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/**
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* Sets the text for the label
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*
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* @param texts String[]
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*/
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public void setTexts(String[] texts) { |
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this.texts = texts;
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} |
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/**
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* Return the text for the label
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*
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* @param texts String[]
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*/
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public String[] getTexts() { |
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return this.texts; |
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} |
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/**
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* <p>
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* LabelLocationMetrics, contains the anchor point, rotation, and some
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* other geometric calculations computed by the PlacementManager.
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* </p>
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*
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* <p>
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* The shp argument is passed as an accessory for subclasses of this
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* class in case they need futher geometric calculations
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* </p>
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* @param graphics, graphics to use to paint the label.
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* @param llm, concrete settings of the placement of this layer
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* @param shp, the Shape over whose the label is painted
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*/
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public void draw(Graphics2D graphics, ILabelLocationMetrics llm, Geometry geom) { |
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if (scale == 0) |
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return;
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Dimension size = getSize();
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int width = (int) Math.round(size.getWidth()*scale); |
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if (width < 1) |
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return;
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int height = (int) Math.round(size.getHeight()*scale); |
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if (height < 1) |
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return;
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Rectangle r = new Rectangle(0,0, width, height); |
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org.gvsig.fmap.geom.primitive.Point anchor; |
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try {
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anchor = geomManager.createPoint(llm.getAnchor().getX(), llm.getAnchor().getY(), SUBTYPES.GEOM2D); |
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double xAnchor = anchor.getX();
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double yAnchor = anchor.getY();
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double theta = llm.getRotation();
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graphics.translate(xAnchor, yAnchor); |
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graphics.rotate(theta); |
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synchronized (this) { |
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float fontSizeBefore = textSymbol.getFont().getSize2D();
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try {
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textSymbol.setFontSize(fontSizeBefore*scale); |
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drawInsideRectangle(graphics, r); |
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textSymbol.setFontSize(fontSizeBefore); |
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} catch (SymbolDrawingException e) {
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e.printStackTrace(); |
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} |
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} |
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graphics.rotate(-theta); |
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graphics.translate(-xAnchor, -yAnchor); |
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} catch (CreateGeometryException e1) {
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logger.error("Error creating a point", e1);
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e1.printStackTrace(); |
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} |
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} |
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private void relativeToAbsolute(double[] xy, Rectangle r, Dimension labelSz, double ratioLabel, double ratioViewPort) { |
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int x;
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int y;
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if (ratioViewPort > ratioLabel) {
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// size is defined by the viewport height
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y = (int) (r.height*xy[1]); |
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x = (int) ((0.5*r.width) - (0.5-xy[0])*(ratioLabel*r.height)); |
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} else {
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// size is defined by the viewport width
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x = (int) (r.width * xy[0]); |
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y = (int) ((0.5 * r.height) - (0.5-xy[1])*(r.width/ratioLabel)); |
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} |
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xy[0] = x;
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xy[1] = y;
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} |
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/**
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* Useful to render a Label with size inside little rectangles.
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*
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* @param graphics Graphics2D
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* @param bounds Rectangle
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* @throws SymbolDrawingException
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*/
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public void drawInsideRectangle(Graphics2D graphics, Rectangle bounds) throws SymbolDrawingException { |
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if (labelStyle != null) { |
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labelStyle.drawInsideRectangle(graphics, bounds); |
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Rectangle2D[] textBounds = labelStyle.getTextBounds(); |
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Dimension labelSz = getSize();
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final double ratioLabel = labelSz.getWidth()/labelSz.getHeight(); |
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final double ratioViewPort = bounds.getWidth() / bounds.getHeight(); |
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final double[] xy = new double[2]; |
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// draw the text fields
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if (textBounds.length > 0 && texts!=null) { |
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for (int i = 0; i < textBounds.length && i < texts.length; i++) { |
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getTextSymbol().setText(texts[i]); |
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Rectangle2D textFieldArea = textBounds[i];
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xy[0] = textFieldArea.getX();
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xy[1] = textFieldArea.getY();
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relativeToAbsolute(xy, bounds, labelSz, ratioLabel, ratioViewPort); |
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int x = (int) Math.round(xy[0]); |
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int y = (int) Math.round(xy[1]); |
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xy[0] = textFieldArea.getMaxX();
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xy[1] = textFieldArea.getMaxY();
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relativeToAbsolute(xy, bounds, labelSz, ratioLabel, ratioViewPort); |
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int width = (int) Math.round(xy[0]) -x; |
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int height = (int) Math.round(xy[1] - y) ; |
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Rectangle textRect = new Rectangle(x, y, width, height); |
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Shape oldClip = graphics.getClip();
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graphics.setClip(textRect); |
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getTextSymbol().drawInsideRectangle(graphics, null, textRect, null); |
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graphics.setClip(oldClip); |
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} |
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} |
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} else {
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if (texts != null && texts.length>0) |
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getTextSymbol().setText(texts[0]);
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getTextSymbol().drawInsideRectangle(graphics, null, bounds, null); |
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} |
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} |
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public int getPriority() { |
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return priority;
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} |
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public void setPriority(int priority) { |
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this.priority = priority;
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} |
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public Geometry getShape(ILabelLocationMetrics llm) throws CreateGeometryException { |
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if (llm==null) |
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return null; |
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Point2D anchor = llm.getAnchor();
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org.gvsig.fmap.geom.primitive.Point p = geomManager.createPoint(anchor.getX(), anchor.getY(), SUBTYPES.GEOM2D); |
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double theta = llm.getRotation();
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// 2. calculate the container shape
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Geometry returnedValue; |
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Rectangle bounds = getBounds();
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AffineTransform at = AffineTransform.getTranslateInstance(p.getX(), p.getY()); |
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at.concatenate(AffineTransform.getRotateInstance(theta));
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returnedValue = geomManager.createSurface(new GeneralPathX(bounds
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.getPathIterator(null)), SUBTYPES.GEOM2D);
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returnedValue.transform(at); |
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return returnedValue;
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} |
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public String getClassName() { |
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return getClass().getName();
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} |
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public double getCartographicSize(ViewPort viewPort, double dpi, Geometry geom) { |
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Dimension sz = getSize();
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double width = sz.getWidth();
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double height = sz.getHeight();
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return CartographicSupportToolkit.
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getCartographicLength(this,
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Math.max(width, height),
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viewPort, |
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dpi); |
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} |
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public int getReferenceSystem() { |
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return referenceSystem;
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} |
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public int getUnit() { |
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return unit;
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} |
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public void setCartographicSize(double cartographicSize, Geometry geom) { |
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Dimension sz = getSize();
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double width = sz.getWidth();
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double height = sz.getHeight();
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if (width >= height) {
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scale = cartographicSize / width; |
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} else {
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scale = cartographicSize / height; |
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} |
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} |
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public void setReferenceSystem(int referenceSystem) { |
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this.referenceSystem = referenceSystem;
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if (textSymbol != null && textSymbol instanceof CartographicSupport) { |
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((CartographicSupport) textSymbol).setReferenceSystem(referenceSystem); |
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} |
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} |
510 |
|
511 |
public void setUnit(int unitIndex) { |
512 |
this.unit = unitIndex;
|
513 |
if (textSymbol != null && textSymbol instanceof CartographicSupport) { |
514 |
((CartographicSupport) textSymbol).setUnit(unitIndex); |
515 |
} |
516 |
} |
517 |
|
518 |
public double toCartographicSize(ViewPort viewPort, double dpi, Geometry geom) { |
519 |
setCartographicSize(getCartographicSize( |
520 |
viewPort, |
521 |
dpi, |
522 |
geom), |
523 |
geom); |
524 |
return 0; |
525 |
} |
526 |
|
527 |
public Rectangle getBounds() { |
528 |
Dimension cBounds = getSize();
|
529 |
return new Rectangle( |
530 |
0,
|
531 |
0,
|
532 |
(int) Math.round(cBounds.width*scale), |
533 |
(int) Math.round(cBounds.height*scale)); |
534 |
} |
535 |
|
536 |
public String getSQLQuery() { |
537 |
if (sqlQuery == null) sqlQuery = ""; |
538 |
return sqlQuery;
|
539 |
} |
540 |
|
541 |
public void setSQLQuery(String sqlQuery) { |
542 |
this.sqlQuery = sqlQuery;
|
543 |
} |
544 |
|
545 |
/*
|
546 |
* (non-Javadoc)
|
547 |
*
|
548 |
* @seeorg.gvsig.tools.persistence.Persistent#saveToState(org.gvsig.tools.
|
549 |
* persistence.PersistentState)
|
550 |
*/
|
551 |
public void saveToState(PersistentState state) throws PersistenceException { |
552 |
state.set(FIELD_NAME, getName()); |
553 |
state.set(FIELD_TEXT_SYMBOL, getTextSymbol()); |
554 |
state.set(FIELD_LABEL_EXPRESSION, getLabelExpression()); |
555 |
state.set(FIELD_VISIBLE, isVisible()); |
556 |
state.set(FIELD_LABEL_STYLE, getLabelStyle()); |
557 |
state.set(FIELD_TEXTS, getTexts()); |
558 |
state.set(FIELD_PRIORITY, getPriority()); |
559 |
state.set(FIELD_SCALE, scale); |
560 |
state.set(FIELD_SQL_QUERY, getSQLQuery()); |
561 |
state.set(FIELD_UNIT, getUnit()); |
562 |
state.set(FIELD_REFERENCE_SYSTEM, getReferenceSystem()); |
563 |
} |
564 |
|
565 |
/*
|
566 |
* (non-Javadoc)
|
567 |
*
|
568 |
* @see
|
569 |
* org.gvsig.tools.persistence.Persistent#loadFromState(org.gvsig.tools.
|
570 |
* persistence.PersistentState)
|
571 |
*/
|
572 |
public void loadFromState(PersistentState state) |
573 |
throws PersistenceException {
|
574 |
setName(state.getString(FIELD_NAME)); |
575 |
setTextSymbol((ITextSymbol) state.get(FIELD_TEXT_SYMBOL)); |
576 |
setLabelExpression(state.getString(FIELD_LABEL_EXPRESSION)); |
577 |
setVisible(state.getBoolean(FIELD_VISIBLE)); |
578 |
setLabelStyle((ILabelStyle) state.get(FIELD_LABEL_STYLE)); |
579 |
setTexts((String[]) state.getArray(FIELD_TEXTS, String.class)); |
580 |
setPriority(state.getInt(FIELD_PRIORITY)); |
581 |
scale = state.getDouble(FIELD_SCALE); |
582 |
setSQLQuery(state.getString(FIELD_SQL_QUERY)); |
583 |
setUnit(state.getInt(FIELD_UNIT)); |
584 |
setReferenceSystem(state.getInt(FIELD_REFERENCE_SYSTEM)); |
585 |
} |
586 |
|
587 |
public static void registerPersistence() { |
588 |
// Add the persistence definition.
|
589 |
PersistenceManager manager = ToolsLocator.getPersistenceManager(); |
590 |
DynStruct definition = manager.addDefinition( |
591 |
LabelClass.class, |
592 |
LABEL_CLASS_DYNCLASS_NAME, |
593 |
LABEL_CLASS_DYNCLASS_NAME+" Persistence definition",
|
594 |
null,
|
595 |
null
|
596 |
); |
597 |
|
598 |
definition.addDynFieldString(FIELD_NAME).setMandatory(true);
|
599 |
definition.addDynFieldObject(FIELD_TEXT_SYMBOL).setMandatory(true);
|
600 |
definition.addDynFieldString(FIELD_LABEL_EXPRESSION).setMandatory(true);
|
601 |
definition.addDynFieldBoolean(FIELD_VISIBLE).setMandatory(true);
|
602 |
definition.addDynFieldObject(FIELD_LABEL_STYLE).setMandatory(true);
|
603 |
definition.addDynFieldList(FIELD_TEXTS).setMandatory(true);
|
604 |
definition.addDynFieldInt(FIELD_PRIORITY).setMandatory(true);
|
605 |
definition.addDynFieldDouble(FIELD_SCALE).setMandatory(true);
|
606 |
definition.addDynFieldString(FIELD_SQL_QUERY).setMandatory(true);
|
607 |
definition.addDynFieldInt(FIELD_UNIT).setMandatory(true);
|
608 |
definition.addDynFieldInt(FIELD_REFERENCE_SYSTEM).setMandatory(true);
|
609 |
} |
610 |
|
611 |
} |