root / branches / v2_0_0_prep / libraries / libFMap_mapcontext / src / org / gvsig / fmap / mapcontext / rendering / symbols / impl / DefaultSymbolManager.java @ 38551
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1 | 30838 | cordinyana | /* gvSIG. Geographic Information System of the Valencian Government
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2 | *
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3 | * Copyright (C) 2007-2008 Infrastructures and Transports Department
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4 | 31544 | cordinyana | * of the Valencian Government (CIT)
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5 | 30838 | cordinyana | *
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6 | * This program is free software; you can redistribute it and/or
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7 | * modify it under the terms of the GNU General Public License
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8 | * as published by the Free Software Foundation; either version 2
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9 | * of the License, or (at your option) any later version.
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10 | *
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11 | * This program is distributed in the hope that it will be useful,
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | * GNU General Public License for more details.
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15 | *
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16 | * You should have received a copy of the GNU General Public License
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17 | * along with this program; if not, write to the Free Software
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18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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19 | * MA 02110-1301, USA.
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20 | *
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21 | */
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22 | |||
23 | /*
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24 | * AUTHORS (In addition to CIT):
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25 | * 2009 {DiSiD Technologies} {{Task}}
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26 | 38551 | jldominguez | *
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27 | **************************************************************
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28 | * Colors from www.ColorBrewer.org by Cynthia A. Brewer,
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29 | * Geography, Pennsylvania State University.
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30 | * Using groups of 4 colors from the 9 Diverging Schemes
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31 | * 4 * 9 = 36 colors
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32 | **************************************************************
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33 | *
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34 | 30838 | cordinyana | */
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35 | package org.gvsig.fmap.mapcontext.rendering.symbols.impl; |
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36 | |||
37 | 30892 | cordinyana | import java.awt.Color; |
38 | 30838 | cordinyana | import java.io.File; |
39 | import java.io.FileFilter; |
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40 | import java.io.FileInputStream; |
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41 | import java.io.FileOutputStream; |
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42 | import java.io.IOException; |
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43 | 30892 | cordinyana | import java.util.Collections; |
44 | import java.util.HashMap; |
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45 | import java.util.Map; |
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46 | 36666 | cordinyana | import java.util.Random; |
47 | 30838 | cordinyana | |
48 | 30892 | cordinyana | import org.gvsig.fmap.mapcontext.MapContextRuntimeException; |
49 | import org.gvsig.fmap.mapcontext.impl.InvalidRegisteredClassException; |
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50 | import org.gvsig.fmap.mapcontext.impl.RegisteredClassInstantiationException; |
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51 | import org.gvsig.fmap.mapcontext.rendering.symbols.IMultiLayerSymbol; |
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52 | 30838 | cordinyana | import org.gvsig.fmap.mapcontext.rendering.symbols.ISymbol; |
53 | 30892 | cordinyana | import org.gvsig.fmap.mapcontext.rendering.symbols.IWarningSymbol; |
54 | 30838 | cordinyana | import org.gvsig.fmap.mapcontext.rendering.symbols.SymbolException; |
55 | import org.gvsig.fmap.mapcontext.rendering.symbols.SymbolManager; |
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56 | 30892 | cordinyana | import org.gvsig.fmap.mapcontext.rendering.symbols.SymbolPreferences; |
57 | 30838 | cordinyana | import org.gvsig.tools.ToolsLocator; |
58 | import org.gvsig.tools.persistence.PersistenceManager; |
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59 | import org.gvsig.tools.persistence.PersistentState; |
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60 | 32880 | jjdelcerro | import org.gvsig.tools.persistence.exception.PersistenceException; |
61 | 30838 | cordinyana | |
62 | /**
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63 | * Default {@link SymbolManager} implementation.
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64 | *
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65 | * @author gvSIG team
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66 | */
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67 | public class DefaultSymbolManager implements SymbolManager { |
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68 | |||
69 | 30892 | cordinyana | private SymbolPreferences symbolPreferences =
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70 | new DefaultSymbolPreferences();
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71 | 30838 | cordinyana | |
72 | 30892 | cordinyana | private Map symbolsByName = Collections.synchronizedMap(new HashMap()); |
73 | 30838 | cordinyana | |
74 | 30892 | cordinyana | private Map symbolsByShapeType = Collections.synchronizedMap(new HashMap()); |
75 | 30838 | cordinyana | |
76 | 30892 | cordinyana | private Map multiLineSymbolsByName = |
77 | Collections.synchronizedMap(new HashMap()); |
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78 | |||
79 | private Map multiLineSymbolsByShapeType = |
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80 | Collections.synchronizedMap(new HashMap()); |
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81 | |||
82 | private IWarningSymbol warningSymbol;
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83 | |||
84 | private Object warningSymbolLock = new Object(); |
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85 | |||
86 | 30838 | cordinyana | public ISymbol[] loadSymbols(File folder) throws SymbolException { |
87 | return loadSymbols(folder, null); |
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88 | } |
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89 | |||
90 | public ISymbol[] loadSymbols(File folder, FileFilter fileFilter) |
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91 | throws SymbolException {
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92 | // TODO: add symbol caching
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93 | |||
94 | if (folder.exists()) {
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95 | |||
96 | File[] symbolFiles = null; |
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97 | if (fileFilter == null) { |
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98 | symbolFiles = folder.listFiles(); |
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99 | } else {
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100 | symbolFiles = folder.listFiles(fileFilter); |
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101 | } |
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102 | |||
103 | if (symbolFiles != null) { |
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104 | ISymbol[] symbols = new ISymbol[symbolFiles.length]; |
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105 | for (int i = 0; i < symbolFiles.length; i++) { |
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106 | symbols[i] = loadSymbol(symbolFiles[i]); |
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107 | } |
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108 | return symbols;
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109 | } |
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110 | } |
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111 | |||
112 | return null; |
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113 | } |
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114 | |||
115 | public void saveSymbol(ISymbol symbol, String fileName, File folder) |
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116 | throws SymbolException {
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117 | saveSymbol(symbol, fileName, folder, false);
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118 | } |
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119 | |||
120 | public void saveSymbol(ISymbol symbol, String fileName, File folder, |
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121 | boolean overwrite) throws SymbolException { |
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122 | // TODO: add symbol caching
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123 | |||
124 | PersistenceManager persistenceManager = ToolsLocator |
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125 | .getPersistenceManager(); |
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126 | |||
127 | File symbolFile = new File(folder, fileName); |
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128 | if (!overwrite && symbolFile.exists()) {
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129 | throw new SymbolFileAlreadyExistsException(symbolFile); |
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130 | } |
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131 | |||
132 | try {
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133 | FileOutputStream fos = new FileOutputStream(symbolFile); |
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134 | |||
135 | persistenceManager.saveState(persistenceManager.getState(symbol), |
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136 | fos); |
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137 | |||
138 | fos.flush(); |
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139 | fos.close(); |
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140 | } catch (PersistenceException e) {
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141 | throw new SaveSymbolException(e); |
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142 | } catch (IOException e) { |
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143 | throw new SaveSymbolException(e); |
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144 | } |
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145 | } |
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146 | |||
147 | /**
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148 | * Loads a persisted symbol from the given file.
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149 | */
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150 | private ISymbol loadSymbol(File file) throws SymbolException { |
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151 | if (file.exists()) {
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152 | try {
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153 | FileInputStream fis = new FileInputStream(file); |
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154 | |||
155 | PersistenceManager persistenceManager = ToolsLocator |
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156 | .getPersistenceManager(); |
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157 | |||
158 | PersistentState state = persistenceManager.loadState(fis); |
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159 | ISymbol symbol = (ISymbol) persistenceManager.create(state); |
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160 | |||
161 | fis.close(); |
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162 | return symbol;
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163 | } catch (PersistenceException e) {
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164 | throw new LoadSymbolException(e); |
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165 | } catch (IOException e) { |
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166 | throw new LoadSymbolException(e); |
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167 | } |
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168 | } |
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169 | |||
170 | return null; |
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171 | } |
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172 | |||
173 | 30892 | cordinyana | public SymbolPreferences getSymbolPreferences() {
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174 | return symbolPreferences;
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175 | } |
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176 | |||
177 | public ISymbol createSymbol(String symbolName) |
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178 | throws MapContextRuntimeException {
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179 | return createSymbol(symbolName, (Class) symbolsByName.get(symbolName), |
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180 | ISymbol.class); |
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181 | } |
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182 | |||
183 | public ISymbol createSymbol(int shapeType) |
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184 | throws MapContextRuntimeException {
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185 | String symbolName =
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186 | (String) symbolsByShapeType.get(new Integer(shapeType)); |
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187 | |||
188 | return symbolName == null ? null : createSymbol(symbolName); |
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189 | } |
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190 | |||
191 | public ISymbol createSymbol(String symbolName, Color color) |
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192 | throws MapContextRuntimeException {
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193 | ISymbol symbol = createSymbol(symbolName); |
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194 | |||
195 | if (symbol != null) { |
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196 | symbol.setColor(color); |
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197 | } |
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198 | |||
199 | return symbol;
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200 | } |
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201 | |||
202 | public ISymbol createSymbol(int shapeType, Color color) |
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203 | throws MapContextRuntimeException {
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204 | String symbolName =
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205 | (String) symbolsByShapeType.get(new Integer(shapeType)); |
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206 | |||
207 | return symbolName == null ? null : createSymbol(symbolName, color); |
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208 | } |
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209 | |||
210 | public IMultiLayerSymbol createMultiLayerSymbol(String symbolName) |
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211 | throws MapContextRuntimeException {
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212 | return (IMultiLayerSymbol) createSymbol(symbolName,
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213 | (Class) multiLineSymbolsByName.get(symbolName),
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214 | IMultiLayerSymbol.class); |
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215 | } |
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216 | |||
217 | public IMultiLayerSymbol createMultiLayerSymbol(int shapeType) |
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218 | throws MapContextRuntimeException {
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219 | String symbolName =
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220 | (String) multiLineSymbolsByShapeType.get(new Integer(shapeType)); |
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221 | |||
222 | return symbolName == null ? null : createMultiLayerSymbol(symbolName); |
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223 | } |
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224 | |||
225 | public void registerSymbol(String symbolName, Class symbolClass) |
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226 | throws MapContextRuntimeException {
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227 | if (symbolClass == null || !ISymbol.class.isAssignableFrom(symbolClass)) { |
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228 | throw new InvalidRegisteredClassException(ISymbol.class, |
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229 | symbolClass, symbolName); |
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230 | } |
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231 | symbolsByName.put(symbolName, symbolClass); |
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232 | } |
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233 | |||
234 | public void registerSymbol(String symbolName, int[] shapeTypes, |
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235 | Class symbolClass) throws MapContextRuntimeException { |
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236 | registerSymbol(symbolName, symbolClass); |
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237 | if (shapeTypes != null) { |
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238 | for (int i = 0; i < shapeTypes.length; i++) { |
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239 | symbolsByShapeType.put(new Integer(shapeTypes[i]), symbolName); |
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240 | } |
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241 | } |
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242 | } |
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243 | |||
244 | public void registerMultiLayerSymbol(String symbolName, Class symbolClass) |
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245 | throws MapContextRuntimeException {
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246 | if (symbolClass == null |
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247 | || !IMultiLayerSymbol.class.isAssignableFrom(symbolClass)) { |
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248 | throw new InvalidRegisteredClassException(IMultiLayerSymbol.class, |
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249 | symbolClass, symbolName); |
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250 | } |
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251 | |||
252 | multiLineSymbolsByName.put(symbolName, symbolClass); |
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253 | } |
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254 | |||
255 | public void registerMultiLayerSymbol(String symbolName, int[] shapeTypes, |
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256 | Class symbolClass) throws MapContextRuntimeException { |
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257 | registerMultiLayerSymbol(symbolName, symbolClass); |
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258 | if (shapeTypes != null) { |
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259 | for (int i = 0; i < shapeTypes.length; i++) { |
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260 | multiLineSymbolsByShapeType.put(new Integer(shapeTypes[i]), |
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261 | symbolName); |
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262 | } |
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263 | } |
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264 | } |
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265 | |||
266 | public IWarningSymbol getWarningSymbol(String message, String symbolDesc, |
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267 | int symbolDrawExceptionType) throws MapContextRuntimeException { |
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268 | synchronized (warningSymbolLock) {
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269 | if (warningSymbol == null) { |
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270 | warningSymbol = (IWarningSymbol) createSymbol("warning");
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271 | } |
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272 | } |
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273 | |||
274 | // TODO: set those values as parameter values in the draw method.
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275 | warningSymbol.setDescription(symbolDesc); |
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276 | warningSymbol.setMessage(message); |
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277 | warningSymbol.setDrawExceptionType(symbolDrawExceptionType); |
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278 | |||
279 | return warningSymbol;
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280 | } |
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281 | |||
282 | private ISymbol createSymbol(String symbolName, Class symbolClass, |
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283 | Class expectedType) throws MapContextRuntimeException { |
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284 | ISymbol symbol; |
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285 | try {
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286 | symbol = |
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287 | (ISymbol) (symbolClass == null ? null |
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288 | : symbolClass.newInstance()); |
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289 | } catch (InstantiationException e) { |
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290 | throw new RegisteredClassInstantiationException(expectedType, |
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291 | symbolClass, symbolName, e); |
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292 | } catch (IllegalAccessException e) { |
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293 | throw new RegisteredClassInstantiationException(expectedType, |
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294 | symbolClass, symbolName, e); |
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295 | } |
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296 | |||
297 | 38551 | jldominguez | Color the_color = null; |
298 | |||
299 | 36666 | cordinyana | if (getSymbolPreferences().isDefaultSymbolFillColorAleatory()) {
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300 | 38551 | jldominguez | |
301 | the_color = brewerBasedColor(); |
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302 | |||
303 | } else {
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304 | // not random
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305 | the_color = getSymbolPreferences().getDefaultSymbolFillColor(); |
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306 | 36666 | cordinyana | } |
307 | 38551 | jldominguez | symbol.setColor(the_color); |
308 | 30892 | cordinyana | // Perform this initialization into the Symbol implementation
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309 | // if (symbol instanceof CartographicSupport) {
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310 | // CartographicSupport cs = (CartographicSupport) symbol;
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311 | // cs.setUnit(getDefaultCartographicSupportMeasureUnit());
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312 | // cs
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313 | // .setReferenceSystem(getDefaultCartographicSupportReferenceSystem();
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314 | // }
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315 | |||
316 | return symbol;
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317 | } |
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318 | 38442 | nbrodin | |
319 | public void setSymbolPreferences(SymbolPreferences symbolPreferences) { |
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320 | this.symbolPreferences = symbolPreferences;
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321 | } |
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322 | 38551 | jldominguez | |
323 | /**
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324 | *
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325 | * @param col
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326 | * @return color 1/3 closer to black
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327 | */
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328 | public static Color darker(Color col) { |
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329 | return new Color( |
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330 | (2 * col.getRed()) / 3, |
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331 | (2 * col.getGreen()) / 3, |
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332 | (2 * col.getBlue()) / 3, |
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333 | col.getAlpha()); |
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334 | } |
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335 | |||
336 | /**
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337 | *
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338 | * @param col
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339 | * @return color 1/3 closer to white
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340 | */
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341 | public static Color lighter(Color col) { |
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342 | Color resp = invert(col);
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343 | resp = darker(resp); |
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344 | return invert(resp);
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345 | } |
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346 | |||
347 | /**
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348 | *
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349 | * @param col
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350 | * @return inverted color (inverts each band, same alpha)
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351 | */
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352 | public static Color invert(Color col) { |
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353 | return new Color( |
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354 | 255 - col.getRed(),
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355 | 255 - col.getGreen(),
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356 | 255 - col.getBlue(),
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357 | col.getAlpha()); |
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358 | } |
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359 | |||
360 | private static Color brewerBasedColor() { |
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361 | |||
362 | int ind = rnd.nextInt(BREWER_COLOR.length);
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363 | Color base = BREWER_COLOR[ind];
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364 | ind = rnd.nextInt(100);
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365 | if (ind > 66) { |
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366 | return darker(base);
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367 | } else {
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368 | if (ind > 33) { |
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369 | return lighter(base);
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370 | } else {
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371 | return base;
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372 | } |
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373 | } |
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374 | } |
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375 | |||
376 | private static Color[] BREWER_COLOR = new Color[36]; |
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377 | private static final Random rnd = new Random(); |
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378 | |||
379 | static {
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380 | /**
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381 | * Colors from www.ColorBrewer.org by Cynthia A. Brewer,
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382 | * Geography, Pennsylvania State University.
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383 | *
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384 | * Using groups of 4 colors from the 9 Diverging Schemes
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385 | * 4 * 9 = 36 colors
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386 | */
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387 | BREWER_COLOR[0] = new Color(230, 97, 1); |
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388 | BREWER_COLOR[1] = new Color(253, 184, 99); |
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389 | BREWER_COLOR[2] = new Color(178, 171, 210); |
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390 | BREWER_COLOR[3] = new Color(94, 60, 153); |
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391 | BREWER_COLOR[4] = new Color(166, 97, 26); |
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392 | BREWER_COLOR[5] = new Color(223, 194, 125); |
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393 | BREWER_COLOR[6] = new Color(128, 205, 193); |
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394 | BREWER_COLOR[7] = new Color(1, 133, 113); |
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395 | BREWER_COLOR[8] = new Color(123, 50, 148); |
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396 | BREWER_COLOR[9] = new Color(194, 165, 207); |
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397 | BREWER_COLOR[10] = new Color(166, 219, 160); |
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398 | BREWER_COLOR[11] = new Color(0, 136, 55); |
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399 | BREWER_COLOR[12] = new Color(208, 28, 139); |
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400 | BREWER_COLOR[13] = new Color(241, 182, 218); |
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401 | BREWER_COLOR[14] = new Color(184, 225, 134); |
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402 | BREWER_COLOR[15] = new Color(77, 172, 38); |
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403 | BREWER_COLOR[16] = new Color(202, 0, 32); |
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404 | BREWER_COLOR[17] = new Color(244, 165, 130); |
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405 | BREWER_COLOR[18] = new Color(146, 197, 222); |
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406 | BREWER_COLOR[19] = new Color(5, 113, 176); |
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407 | BREWER_COLOR[20] = new Color(202, 0, 32); |
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408 | BREWER_COLOR[21] = new Color(244, 165, 130); |
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409 | BREWER_COLOR[22] = new Color(186, 186, 186); |
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410 | BREWER_COLOR[23] = new Color(64, 64, 64); |
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411 | BREWER_COLOR[24] = new Color(215, 25, 28); |
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412 | BREWER_COLOR[25] = new Color(253, 174, 97); |
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413 | BREWER_COLOR[26] = new Color(171, 217, 233); |
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414 | BREWER_COLOR[27] = new Color(44, 123, 182); |
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415 | BREWER_COLOR[28] = new Color(215, 25, 28); |
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416 | BREWER_COLOR[29] = new Color(253, 174, 97); |
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417 | BREWER_COLOR[30] = new Color(171, 221, 164); |
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418 | BREWER_COLOR[31] = new Color(43, 131, 186); |
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419 | BREWER_COLOR[32] = new Color(215, 25, 28); |
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420 | BREWER_COLOR[33] = new Color(253, 174, 97); |
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421 | BREWER_COLOR[34] = new Color(166, 217, 106); |
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422 | BREWER_COLOR[35] = new Color(26, 150, 65); |
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423 | } |
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424 | |||
425 | |||
426 | 30838 | cordinyana | } |