root / branches / v2_0_0_prep / libraries / libFMap_mapcontext / src / org / gvsig / fmap / mapcontext / rendering / legend / styling / LabelClass.java @ 29973
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1 | 21200 | vcaballero | /* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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2 | *
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3 | * Copyright (C) 2005 IVER T.I. and Generalitat Valenciana.
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4 | *
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5 | * This program is free software; you can redistribute it and/or
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6 | * modify it under the terms of the GNU General Public License
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7 | * as published by the Free Software Foundation; either version 2
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8 | * of the License, or (at your option) any later version.
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9 | *
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10 | * This program is distributed in the hope that it will be useful,
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11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 | * GNU General Public License for more details.
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14 | *
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15 | * You should have received a copy of the GNU General Public License
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16 | * along with this program; if not, write to the Free Software
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17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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18 | *
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19 | * For more information, contact:
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20 | *
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21 | * Generalitat Valenciana
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22 | * Conselleria d'Infraestructures i Transport
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23 | * Av. Blasco Ib??ez, 50
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24 | * 46010 VALENCIA
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25 | * SPAIN
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26 | *
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27 | * +34 963862235
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28 | * gvsig@gva.es
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29 | * www.gvsig.gva.es
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30 | *
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31 | * or
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32 | *
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33 | * IVER T.I. S.A
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34 | * Salamanca 50
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35 | * 46005 Valencia
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36 | * Spain
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37 | *
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38 | * +34 963163400
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39 | * dac@iver.es
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40 | */
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41 | |||
42 | /* CVS MESSAGES:
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43 | *
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44 | * $Id: LabelClass.java 13953 2007-09-21 12:26:04Z jaume $
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45 | * $Log$
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46 | * Revision 1.14 2007-09-21 12:26:04 jaume
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47 | * cancellation support extended down to the IGeometry and ISymbol level
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48 | *
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49 | * Revision 1.13 2007/09/17 14:16:11 jaume
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50 | * multilayer symbols sizing bug fixed
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51 | *
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52 | * Revision 1.12 2007/08/22 09:48:13 jvidal
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53 | * javadoc
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54 | *
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55 | * Revision 1.11 2007/05/09 11:04:58 jaume
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56 | * refactored legend hierarchy
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57 | *
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58 | * Revision 1.10 2007/05/08 08:47:40 jaume
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59 | * *** empty log message ***
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60 | *
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61 | * Revision 1.9 2007/04/26 11:41:00 jaume
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62 | * attempting to let defining size in world units
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63 | *
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64 | * Revision 1.8 2007/04/18 15:35:11 jaume
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65 | * *** empty log message ***
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66 | *
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67 | * Revision 1.7 2007/04/12 14:28:43 jaume
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68 | * basic labeling support for lines
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69 | *
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70 | * Revision 1.6 2007/04/11 16:01:08 jaume
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71 | * maybe a label placer refactor
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72 | *
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73 | * Revision 1.5 2007/04/10 16:34:01 jaume
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74 | * towards a styled labeling
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75 | *
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76 | * Revision 1.4 2007/04/05 16:07:14 jaume
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77 | * Styled labeling stuff
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78 | *
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79 | * Revision 1.3 2007/04/02 16:34:56 jaume
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80 | * Styled labeling (start commiting)
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81 | *
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82 | * Revision 1.2 2007/03/09 08:33:43 jaume
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83 | * *** empty log message ***
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84 | *
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85 | * Revision 1.1.2.6 2007/02/15 16:23:44 jaume
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86 | * *** empty log message ***
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87 | *
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88 | * Revision 1.1.2.5 2007/02/09 07:47:05 jaume
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89 | * Isymbol moved
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90 | *
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91 | * Revision 1.1.2.4 2007/02/02 16:21:24 jaume
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92 | * start commiting labeling stuff
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93 | *
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94 | * Revision 1.1.2.3 2007/02/01 17:46:49 jaume
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95 | * *** empty log message ***
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96 | *
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97 | * Revision 1.1.2.2 2007/02/01 11:42:47 jaume
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98 | * *** empty log message ***
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99 | *
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100 | * Revision 1.1.2.1 2007/01/30 18:10:45 jaume
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101 | * start commiting labeling stuff
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102 | *
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103 | *
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104 | */
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105 | package org.gvsig.fmap.mapcontext.rendering.legend.styling; |
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106 | |||
107 | import java.awt.Dimension; |
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108 | import java.awt.Graphics2D; |
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109 | import java.awt.Rectangle; |
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110 | import java.awt.Shape; |
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111 | import java.awt.geom.AffineTransform; |
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112 | import java.awt.geom.Point2D; |
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113 | import java.awt.geom.Rectangle2D; |
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114 | |||
115 | import org.gvsig.fmap.geom.Geometry; |
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116 | 27414 | jpiera | import org.gvsig.fmap.geom.GeometryLocator; |
117 | import org.gvsig.fmap.geom.GeometryManager; |
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118 | import org.gvsig.fmap.geom.Geometry.SUBTYPES; |
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119 | import org.gvsig.fmap.geom.exception.CreateGeometryException; |
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120 | 21200 | vcaballero | import org.gvsig.fmap.geom.primitive.GeneralPathX; |
121 | 27024 | jpiera | import org.gvsig.fmap.geom.util.UtilFunctions; |
122 | 21200 | vcaballero | import org.gvsig.fmap.mapcontext.ViewPort; |
123 | import org.gvsig.fmap.mapcontext.rendering.symbols.CartographicSupport; |
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124 | import org.gvsig.fmap.mapcontext.rendering.symbols.CartographicSupportToolkit; |
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125 | import org.gvsig.fmap.mapcontext.rendering.symbols.ITextSymbol; |
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126 | import org.gvsig.fmap.mapcontext.rendering.symbols.SimpleTextSymbol; |
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127 | import org.gvsig.fmap.mapcontext.rendering.symbols.SymbolDrawingException; |
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128 | import org.gvsig.fmap.mapcontext.rendering.symbols.SymbologyFactory; |
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129 | import org.gvsig.fmap.mapcontext.rendering.symbols.styles.ILabelStyle; |
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130 | 29631 | jpiera | import org.gvsig.utils.IPersistence; |
131 | import org.gvsig.utils.XMLEntity; |
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132 | import org.gvsig.utils.XMLException; |
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133 | 27414 | jpiera | import org.slf4j.Logger; |
134 | import org.slf4j.LoggerFactory; |
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135 | 21200 | vcaballero | |
136 | |||
137 | /**
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138 | *
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139 | * LabelClass is the model of the label in the new simbology of gvSIG. In this
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140 | * class is contained its definition, the expresion that defines the text which
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141 | * is going to be showed, if it will be visible or not, the text symbol that is
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142 | * going to paint the label and the style for its background.
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143 | *
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144 | * @author jaume dominguez faus - jaume.dominguez@iver.es
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145 | */
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146 | public class LabelClass implements IPersistence, CartographicSupport { |
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147 | 27414 | jpiera | private static final GeometryManager geomManager = GeometryLocator.getGeometryManager(); |
148 | private static final Logger logger = LoggerFactory.getLogger(GeometryManager.class); |
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149 | 21200 | vcaballero | private String name; |
150 | private ITextSymbol textSymbol;
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151 | private String labelExpression; |
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152 | 22751 | vcaballero | private boolean isVisible = true; |
153 | 21200 | vcaballero | private ILabelStyle labelStyle;
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154 | private String[] texts; |
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155 | private int priority; |
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156 | private double scale = 1; |
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157 | private String sqlQuery; |
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158 | |||
159 | /**
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160 | * Returns true if the label will be showed in the map
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161 | *
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162 | * @return isVisible boolean
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163 | */
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164 | public boolean isVisible() { |
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165 | return isVisible;
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166 | } |
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167 | |||
168 | /**
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169 | * Sets the visibility of the label in the map.
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170 | *
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171 | * @param isVisible boolean
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172 | */
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173 | public void setVisible(boolean isVisible) { |
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174 | this.isVisible = isVisible;
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175 | } |
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176 | |||
177 | /**
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178 | * Returns the expression that defines the text which will be showed in
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179 | * the label
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180 | *
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181 | * @return labelExpression String
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182 | */
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183 | public String getLabelExpression() { |
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184 | return labelExpression;
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185 | } |
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186 | |||
187 | /**
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188 | * Stablishes the expresion that, when it is evaluated, returns the text
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189 | * which will be showed by the label.
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190 | *
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191 | * @param labelExpression String
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192 | */
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193 | public void setLabelExpression(String labelExpression) { |
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194 | this.labelExpression = labelExpression;
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195 | } |
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196 | |||
197 | /**
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198 | * Returns the text symbol that is being used for the text(the font,
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199 | * size,style,aligment)
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200 | *
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201 | * @return label ITextSymbol
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202 | */
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203 | public ITextSymbol getTextSymbol() {
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204 | if (textSymbol == null) { |
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205 | textSymbol = new SimpleTextSymbol();
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206 | } |
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207 | return textSymbol;
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208 | } |
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209 | |||
210 | private Dimension getSize() { |
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211 | if (labelStyle == null) { |
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212 | 22751 | vcaballero | if (texts!=null && texts.length >0) { |
213 | String t = ""; |
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214 | for (int i = 0; i < texts.length; i++) { |
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215 | t += texts[i]; |
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216 | } |
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217 | getTextSymbol().setText(t); |
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218 | } |
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219 | |||
220 | 21200 | vcaballero | Rectangle bounds = getTextSymbol().getBounds();
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221 | bounds.setLocation( |
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222 | (int) Math.round(bounds.getX()), |
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223 | (int) Math.round(bounds.getY()+bounds.getHeight())); |
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224 | return new Dimension(bounds.width, bounds.height); |
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225 | } else {
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226 | labelStyle.setTextFields(texts); |
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227 | return labelStyle.getSize();
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228 | } |
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229 | } |
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230 | /**
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231 | * Stablishes the text symbol that is going to be used for the text(the
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232 | * font,size,style,aligment)
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233 | *
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234 | * @param textSymbol ITextSymbol
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235 | */
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236 | public void setTextSymbol(ITextSymbol textSymbol) { |
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237 | this.textSymbol = textSymbol;
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238 | if (textSymbol == null) { |
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239 | this.textSymbol = new SimpleTextSymbol(); |
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240 | } |
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241 | setReferenceSystem(referenceSystem); |
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242 | setUnit(unit); |
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243 | } |
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244 | |||
245 | /**
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246 | * Stablishes the style for the label.
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247 | *
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248 | * @param labelStyle ILabelStyle
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249 | */
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250 | public void setLabelStyle(ILabelStyle labelStyle) { |
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251 | this.labelStyle = labelStyle;
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252 | } |
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253 | |||
254 | /**
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255 | * Returns the style of the label
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256 | *
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257 | */
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258 | public ILabelStyle getLabelStyle() {
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259 | return this.labelStyle; |
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260 | } |
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261 | |||
262 | /**
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263 | * Returns the name of the label
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264 | *
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265 | */
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266 | public String getName() { |
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267 | return name;
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268 | } |
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269 | |||
270 | /**
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271 | * Stablishes the name of the label
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272 | * @param name
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273 | */
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274 | public void setName(String name) { |
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275 | this.name = name;
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276 | } |
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277 | |||
278 | public String toString() { |
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279 | 22751 | vcaballero | // for debugging
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280 | 27414 | jpiera | // return name+"{label expression="+labelExpression+", visible="+isVisible+", priority="+priority+"}";
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281 | 22751 | vcaballero | return getName();
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282 | 21200 | vcaballero | } |
283 | |||
284 | /**
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285 | * Sets the text for the label
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286 | *
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287 | * @param texts String[]
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288 | */
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289 | public void setTexts(String[] texts) { |
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290 | this.texts = texts;
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291 | |||
292 | } |
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293 | 26768 | fdiaz | |
294 | 22751 | vcaballero | /**
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295 | 26768 | fdiaz | * Return the text for the label
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296 | *
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297 | * @param texts String[]
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298 | */
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299 | public String[] getTexts() { |
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300 | return this.texts; |
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301 | } |
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302 | |||
303 | /**
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304 | 22751 | vcaballero | * <p>
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305 | * LabelLocationMetrics, contains the anchor point, rotation, and some
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306 | * other geometric calculations computed by the PlacementManager.
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307 | * </p>
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308 | *
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309 | * <p>
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310 | * The shp argument is passed as an accessory for subclasses of this
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311 | * class in case they need futher geometric calculations
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312 | * </p>
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313 | * @param graphics, graphics to use to paint the label.
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314 | * @param llm, concrete settings of the placement of this layer
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315 | * @param shp, the Shape over whose the label is painted
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316 | */
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317 | 21200 | vcaballero | public void draw(Graphics2D graphics, LabelLocationMetrics llm, Geometry geom) { |
318 | if (scale == 0) |
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319 | return;
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320 | |||
321 | |||
322 | Dimension size = getSize();
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323 | int width = (int) Math.round(size.getWidth()*scale); |
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324 | if (width < 1) |
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325 | return;
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326 | |||
327 | int height = (int) Math.round(size.getHeight()*scale); |
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328 | if (height < 1) |
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329 | return;
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330 | |||
331 | Rectangle r = new Rectangle(0,0, width, height); |
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332 | 27414 | jpiera | org.gvsig.fmap.geom.primitive.Point anchor; |
333 | try {
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334 | anchor = geomManager.createPoint(llm.getAnchor().getX(), llm.getAnchor().getY(), SUBTYPES.GEOM2D); |
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335 | double xAnchor = anchor.getX();
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336 | double yAnchor = anchor.getY();
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337 | double theta = llm.getRotation();
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338 | 21200 | vcaballero | |
339 | |||
340 | 27414 | jpiera | graphics.translate(xAnchor, yAnchor); |
341 | graphics.rotate(theta); |
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342 | try {
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343 | drawInsideRectangle(graphics, r); |
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344 | } catch (SymbolDrawingException e) {
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345 | // TODO Auto-generated catch block
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346 | e.printStackTrace(); |
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347 | } |
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348 | graphics.rotate(-theta); |
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349 | graphics.translate(-xAnchor, -yAnchor); |
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350 | |||
351 | } catch (CreateGeometryException e1) {
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352 | logger.error("Error creating a point", e1);
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353 | e1.printStackTrace(); |
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354 | 21200 | vcaballero | } |
355 | } |
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356 | |||
357 | private void relativeToAbsolute(double[] xy, Rectangle r, Dimension labelSz, double ratioLabel, double ratioViewPort) { |
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358 | int x;
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359 | int y;
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360 | if (ratioViewPort > ratioLabel) {
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361 | // size is defined by the viewport height
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362 | y = (int) (r.height*xy[1]); |
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363 | x = (int) ((0.5*r.width) - (0.5-xy[0])*(ratioLabel*r.height)); |
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364 | } else {
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365 | // size is defined by the viewport width
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366 | x = (int) (r.width * xy[0]); |
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367 | y = (int) ((0.5 * r.height) - (0.5-xy[1])*(r.width/ratioLabel)); |
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368 | } |
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369 | xy[0] = x;
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370 | xy[1] = y;
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371 | } |
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372 | |||
373 | /**
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374 | * Useful to render a Label with size inside little rectangles.
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375 | *
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376 | * @param graphics Graphics2D
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377 | * @param bounds Rectangle
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378 | * @throws SymbolDrawingException
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379 | */
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380 | public void drawInsideRectangle(Graphics2D graphics, Rectangle bounds) throws SymbolDrawingException { |
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381 | if (labelStyle != null) { |
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382 | labelStyle.drawInsideRectangle(graphics, bounds); |
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383 | Rectangle2D[] textBounds = labelStyle.getTextBounds(); |
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384 | Dimension labelSz = getSize();
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385 | final double ratioLabel = labelSz.getWidth()/labelSz.getHeight(); |
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386 | final double ratioViewPort = bounds.getWidth() / bounds.getHeight(); |
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387 | final double[] xy = new double[2]; |
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388 | |||
389 | |||
390 | // draw the text fields
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391 | 22751 | vcaballero | if (textBounds.length > 0 && texts!=null) { |
392 | 21200 | vcaballero | for (int i = 0; i < textBounds.length && i < texts.length; i++) { |
393 | getTextSymbol().setText(texts[i]); |
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394 | Rectangle2D textFieldArea = textBounds[i];
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395 | xy[0] = textFieldArea.getX();
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396 | xy[1] = textFieldArea.getY();
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397 | relativeToAbsolute(xy, bounds, labelSz, ratioLabel, ratioViewPort); |
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398 | int x = (int) Math.round(xy[0]); |
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399 | int y = (int) Math.round(xy[1]); |
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400 | |||
401 | xy[0] = textFieldArea.getMaxX();
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402 | xy[1] = textFieldArea.getMaxY();
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403 | relativeToAbsolute(xy, bounds, labelSz, ratioLabel, ratioViewPort); |
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404 | int width = (int) Math.round(xy[0]) -x; |
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405 | int height = (int) Math.round(xy[1] - y) ; |
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406 | |||
407 | Rectangle textRect = new Rectangle(x, y, width, height); |
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408 | Shape oldClip = graphics.getClip();
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409 | graphics.setClip(textRect); |
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410 | 28371 | vcaballero | getTextSymbol().drawInsideRectangle(graphics, null, textRect, null); |
411 | 21200 | vcaballero | graphics.setClip(oldClip); |
412 | } |
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413 | } |
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414 | } else {
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415 | |||
416 | if (texts != null && texts.length>0) |
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417 | getTextSymbol().setText(texts[0]);
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418 | 28371 | vcaballero | getTextSymbol().drawInsideRectangle(graphics, null, bounds, null); |
419 | 21200 | vcaballero | } |
420 | } |
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421 | |||
422 | public int getPriority() { |
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423 | return priority;
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424 | } |
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425 | |||
426 | public void setPriority(int priority) { |
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427 | this.priority = priority;
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428 | } |
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429 | |||
430 | 27414 | jpiera | public Geometry getShape(LabelLocationMetrics llm) throws CreateGeometryException { |
431 | 29467 | vcaballero | if (llm==null) |
432 | return null; |
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433 | 21200 | vcaballero | Point2D anchor = llm.getAnchor();
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434 | 27414 | jpiera | org.gvsig.fmap.geom.primitive.Point p = geomManager.createPoint(anchor.getX(), anchor.getY(), SUBTYPES.GEOM2D); |
435 | 21200 | vcaballero | double theta = llm.getRotation();
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436 | |||
437 | // 2. calculate the container shape
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438 | Geometry returnedValue; |
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439 | Rectangle bounds = getBounds();
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440 | |||
441 | AffineTransform at = AffineTransform.getTranslateInstance(p.getX(), p.getY()); |
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442 | at.concatenate(AffineTransform.getRotateInstance(theta));
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443 | 29973 | jldominguez | returnedValue = geomManager.createSurface(new GeneralPathX(bounds.getPathIterator(null)), SUBTYPES.GEOM2D); |
444 | 21200 | vcaballero | |
445 | returnedValue.transform(at); |
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446 | return returnedValue;
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447 | } |
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448 | |||
449 | public String getClassName() { |
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450 | return getClass().getName();
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451 | } |
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452 | |||
453 | 23183 | vcaballero | public XMLEntity getXMLEntity() throws XMLException { |
454 | 21200 | vcaballero | XMLEntity xml = new XMLEntity();
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455 | xml.putProperty("className", getClassName());
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456 | xml.putProperty("isVisible", isVisible);
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457 | xml.putProperty("name", name);
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458 | xml.putProperty("labelExpression", labelExpression);
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459 | xml.putProperty("unit", getUnit());
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460 | xml.putProperty("referenceSystem", getReferenceSystem());
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461 | xml.putProperty("priority", getPriority());
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462 | 22751 | vcaballero | if (texts != null) { |
463 | xml.putProperty("texts", texts);
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464 | } |
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465 | 21200 | vcaballero | if (sqlQuery != null) { |
466 | xml.putProperty("sqlQuery", getSQLQuery());
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467 | } |
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468 | |||
469 | if (labelStyle!=null) { |
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470 | XMLEntity labelStyleXML = labelStyle.getXMLEntity(); |
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471 | labelStyleXML.putProperty("id", "labelStyle"); |
||
472 | xml.addChild(labelStyleXML); |
||
473 | } |
||
474 | |||
475 | XMLEntity textSymXML = getTextSymbol().getXMLEntity(); |
||
476 | textSymXML.putProperty("id", "TextSymbol"); |
||
477 | xml.addChild(textSymXML); |
||
478 | |||
479 | return xml;
|
||
480 | } |
||
481 | |||
482 | public void setXMLEntity(XMLEntity xml) { |
||
483 | isVisible = xml.getBooleanProperty("isVisible");
|
||
484 | name = xml.getStringProperty("name");
|
||
485 | labelExpression = xml.getStringProperty("labelExpression");
|
||
486 | setUnit(xml.getIntProperty("unit"));
|
||
487 | setReferenceSystem(xml.getIntProperty("referenceSystem"));
|
||
488 | setTextSymbol( |
||
489 | (ITextSymbol) SymbologyFactory. |
||
490 | createSymbolFromXML(xml.firstChild("id", "TextSymbol"), null)); |
||
491 | 22751 | vcaballero | if (xml.contains("texts")) { |
492 | setTexts(xml.getStringArrayProperty("texts"));
|
||
493 | } |
||
494 | 21200 | vcaballero | if (xml.contains("sqlQuery")) { |
495 | setSQLQuery(xml.getStringProperty("sqlQuery"));
|
||
496 | } |
||
497 | |||
498 | if (xml.contains("priority")) { |
||
499 | setPriority(xml.getIntProperty("priority"));
|
||
500 | } |
||
501 | // labelStyle
|
||
502 | XMLEntity aux = xml.firstChild("id", "labelStyle"); |
||
503 | if (aux!= null) { |
||
504 | setLabelStyle((ILabelStyle) SymbologyFactory. |
||
505 | 27414 | jpiera | createStyleFromXML(aux, "labelStyle"));
|
506 | 21200 | vcaballero | } |
507 | } |
||
508 | |||
509 | private int unit = CartographicSupportToolkit.DefaultMeasureUnit; |
||
510 | private int referenceSystem = CartographicSupportToolkit.DefaultReferenceSystem; |
||
511 | |||
512 | public double getCartographicSize(ViewPort viewPort, double dpi, Geometry geom) { |
||
513 | Dimension sz = getSize();
|
||
514 | double width = sz.getWidth();
|
||
515 | double height = sz.getHeight();
|
||
516 | return CartographicSupportToolkit.
|
||
517 | 27414 | jpiera | getCartographicLength(this,
|
518 | Math.max(width, height),
|
||
519 | viewPort, |
||
520 | dpi); |
||
521 | 21200 | vcaballero | } |
522 | |||
523 | public int getReferenceSystem() { |
||
524 | return referenceSystem;
|
||
525 | } |
||
526 | |||
527 | public int getUnit() { |
||
528 | return unit;
|
||
529 | } |
||
530 | |||
531 | public void setCartographicSize(double cartographicSize, Geometry geom) { |
||
532 | Dimension sz = getSize();
|
||
533 | double width = sz.getWidth();
|
||
534 | double height = sz.getHeight();
|
||
535 | if (width >= height) {
|
||
536 | scale = cartographicSize / width; |
||
537 | } else {
|
||
538 | scale = cartographicSize / height; |
||
539 | } |
||
540 | } |
||
541 | |||
542 | public void setReferenceSystem(int referenceSystem) { |
||
543 | this.referenceSystem = referenceSystem;
|
||
544 | if (textSymbol != null && textSymbol instanceof CartographicSupport) { |
||
545 | ((CartographicSupport) textSymbol).setReferenceSystem(referenceSystem); |
||
546 | } |
||
547 | } |
||
548 | |||
549 | public void setUnit(int unitIndex) { |
||
550 | this.unit = unitIndex;
|
||
551 | if (textSymbol != null && textSymbol instanceof CartographicSupport) { |
||
552 | ((CartographicSupport) textSymbol).setUnit(unitIndex); |
||
553 | } |
||
554 | } |
||
555 | |||
556 | public double toCartographicSize(ViewPort viewPort, double dpi, Geometry geom) { |
||
557 | setCartographicSize(getCartographicSize( |
||
558 | 27414 | jpiera | viewPort, |
559 | dpi, |
||
560 | geom), |
||
561 | geom); |
||
562 | 21200 | vcaballero | return 0; |
563 | } |
||
564 | |||
565 | public Rectangle getBounds() { |
||
566 | Dimension cBounds = getSize();
|
||
567 | return new Rectangle( |
||
568 | 0,
|
||
569 | 0,
|
||
570 | (int) Math.round(cBounds.width*scale), |
||
571 | (int) Math.round(cBounds.height*scale)); |
||
572 | } |
||
573 | |||
574 | public String getSQLQuery() { |
||
575 | if (sqlQuery == null) sqlQuery = ""; |
||
576 | return sqlQuery;
|
||
577 | } |
||
578 | |||
579 | public void setSQLQuery(String sqlQuery) { |
||
580 | this.sqlQuery = sqlQuery;
|
||
581 | } |
||
582 | } |