svn-gvsig-desktop / trunk / extensions / extRasterTools-SE / src / org / gvsig / raster / beans / previewbase / PreviewFiltering.java @ 19376
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1 | 19307 | nbrodin | /* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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2 | *
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3 | * Copyright (C) 2007 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 | package org.gvsig.raster.beans.previewbase; |
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20 | |||
21 | import java.util.ArrayList; |
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22 | |||
23 | import org.gvsig.raster.dataset.Params; |
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24 | import org.gvsig.raster.grid.filter.FilterTypeException; |
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25 | import org.gvsig.raster.grid.filter.IRasterFilterListManager; |
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26 | import org.gvsig.raster.grid.filter.RasterFilter; |
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27 | import org.gvsig.raster.grid.filter.RasterFilterList; |
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28 | import org.gvsig.raster.grid.filter.RasterFilterListManager; |
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29 | import org.gvsig.raster.hierarchy.IRasterRendering; |
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30 | import org.gvsig.raster.util.RasterToolsUtil; |
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31 | |||
32 | import com.iver.andami.PluginServices; |
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33 | |||
34 | /**
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35 | * Procesado de la imagen para la previsualizaci?n. Para poder usar esta clase despu?s de instanciarla
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36 | * habr? que asignarle un valor a showFiltersSelected aunque por defecto est? a true por lo que se
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37 | * visualizaran los cambios sin problemas, asigna una lista de filtros inicial (que ya tenga el raster
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38 | * aplicado) con setFilterStatus y asignar los filtros que queramos aplicar con addNewParam (una llamada
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39 | * por cada filtro).
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40 | *
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41 | * 19/02/2008
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42 | * @author Nacho Brodin nachobrodin@gmail.com
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43 | */
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44 | public class PreviewFiltering implements IPreviewRenderProcess { |
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45 | |||
46 | private boolean showFiltersSelected = true; |
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47 | private ArrayList paramsList = new ArrayList(); |
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48 | 19335 | nbrodin | private ArrayList filtersInit = new ArrayList(); |
49 | 19307 | nbrodin | |
50 | /**
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51 | * Flag de selecci?n de activaci?n y desactivaci?n
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52 | * @param show
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53 | */
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54 | public void showFiltersSelected(boolean show) { |
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55 | this.showFiltersSelected = show;
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56 | } |
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57 | |||
58 | /**
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59 | * Obtiene la lista de par?metros
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60 | * @return the paramsList
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61 | */
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62 | public ArrayList getParamsList() { |
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63 | return paramsList;
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64 | } |
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65 | |||
66 | /**
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67 | * Asigna la lista de par?metros
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68 | * @param params
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69 | */
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70 | public void setParamsList(ArrayList params) { |
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71 | this.paramsList = params;
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72 | } |
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73 | |||
74 | /**
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75 | 19362 | nbrodin | * Asigna el arrayList de filtros inicial. Esto hace que aplique los filtros que ya
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76 | * existen en el raster. Estos pueden ser obtenidos del render de la capa de la forma
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77 | * lyr.getRender().getFilterList().getStatusCloned().
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78 | * @param params Lista de filtros aplicados.
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79 | 19307 | nbrodin | */
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80 | public void setFilterStatus(ArrayList filtersInit) { |
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81 | this.filtersInit = filtersInit;
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82 | } |
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83 | |||
84 | /**
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85 | * Devuelve el arrayList de filtros inicial
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86 | * @return
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87 | */
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88 | public ArrayList getFilterStatus() { |
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89 | return filtersInit;
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90 | } |
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91 | |||
92 | /**
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93 | * A?adir un nuevo Params a la lista de Params que podemos manejar. Un Params
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94 | * equivale a un filtro cargado. El hecho de trabajar con Params y no con
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95 | * filtros, simplifica totalmente el panel. Sin tener que depender de los
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96 | * filtros nada m?s que para el momento de dibujado o guardado.
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97 | * @param name
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98 | * @param params
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99 | * @param classFilter
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100 | */
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101 | public void addNewParam(String name, Params params, Class classFilter) { |
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102 | ParamStruct param = new ParamStruct();
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103 | param.setFilterName(name); |
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104 | param.setFilterParam(params); |
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105 | param.setFilterClass(classFilter); |
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106 | paramsList.add(param); |
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107 | } |
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108 | |||
109 | /**
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110 | * Procesa la imagen con la lista de filtros si el flag showFilterSelected est? a true.
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111 | * Esta funci?n llama a addFilter por cada filtro a?adido pero es applyFilters la encargada
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112 | * de construir la lista.
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113 | */
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114 | public void process(IRasterRendering rendering) throws FilterTypeException { |
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115 | rendering.getRenderFilterList().clear(); |
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116 | |||
117 | if (showFiltersSelected) {
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118 | RasterFilterList filterList = rendering.getRenderFilterList(); |
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119 | RasterFilterListManager stackManager = new RasterFilterListManager(filterList);
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120 | |||
121 | ArrayList listFilterUsed = applyFilters(rendering);
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122 | ArrayList exc = new ArrayList(); |
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123 | 19362 | nbrodin | for (int i = 0; i < listFilterUsed.size(); i++) { |
124 | IRasterFilterListManager filterManager = stackManager.getManagerByFilterClass(((ParamStruct) listFilterUsed.get(i)).getFilterClass()); |
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125 | 19307 | nbrodin | try {
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126 | 19362 | nbrodin | filterManager.addFilter(((ParamStruct) listFilterUsed.get(i)).getFilterClass(), ((ParamStruct) listFilterUsed.get(i)).getFilterParam()); |
127 | 19307 | nbrodin | } catch (FilterTypeException e) {
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128 | exc.add(e); |
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129 | } |
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130 | } |
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131 | if(exc.size() != 0) { |
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132 | RasterToolsUtil.messageBoxError(PluginServices.getText(this, "error_adding_filters"), this, exc); |
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133 | exc.clear(); |
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134 | } |
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135 | } |
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136 | } |
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137 | |||
138 | /**
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139 | * Aqui se seleccionan que filtros se van a aplicar y se devuelven en forma
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140 | * de ArrayList tanto para el dibujado como cuando aceptan o aplican el panel.
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141 | * @param rendering
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142 | * @return
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143 | */
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144 | public ArrayList applyFilters(IRasterRendering rendering) { |
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145 | ArrayList listFilterUsed = new ArrayList(); |
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146 | |||
147 | RasterFilterList filterList = new RasterFilterList();
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148 | filterList.setEnv(rendering.getRenderFilterList().getEnv()); |
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149 | RasterFilterListManager stackManager = new RasterFilterListManager(filterList);
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150 | |||
151 | if(filtersInit == null) |
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152 | return listFilterUsed;
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153 | |||
154 | 19362 | nbrodin | // Conservamos filtros ya existentes
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155 | 19307 | nbrodin | for (int i = 0; i < filtersInit.size(); i++) { |
156 | 19362 | nbrodin | |
157 | 19307 | nbrodin | RasterFilter obj = null;
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158 | for (int j = 0; j < stackManager.getRasterFilterList().size(); j++) { |
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159 | Class classFilter = (Class) stackManager.getRasterFilterList().get(j); |
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160 | try {
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161 | obj = (RasterFilter) classFilter.newInstance(); |
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162 | if (obj.getName().equals(((RasterFilter) filtersInit.get(i)).getName()))
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163 | break;
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164 | } catch (InstantiationException e) { |
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165 | RasterToolsUtil.messageBoxError("error_creando_filtro", this, e); |
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166 | } catch (IllegalAccessException e) { |
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167 | RasterToolsUtil.messageBoxError("error_creando_filtro", this, e); |
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168 | } |
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169 | } |
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170 | |||
171 | // Si no encontramos el filtro apropiado, nos olvidamos de el
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172 | if (obj == null) |
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173 | continue;
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174 | |||
175 | // Si no es visible tenemos que conservar el filtro
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176 | try {
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177 | Params params = (Params) ((RasterFilter) filtersInit.get(i)).getUIParams(((RasterFilter) filtersInit.get(i)).getName()).clone(); |
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178 | // A?ado el parametro RenderBands a los parametros del filtro
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179 | String rgb = rendering.getRenderBands()[0] + " " + rendering.getRenderBands()[1] + " " + rendering.getRenderBands()[2]; |
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180 | params.setParam("RenderBands", rgb, 0, null); |
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181 | 19376 | nbrodin | |
182 | 19307 | nbrodin | ParamStruct newParam = new ParamStruct();
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183 | newParam.setFilterClass(obj.getClass()); |
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184 | newParam.setFilterName(((RasterFilter) filtersInit.get(i)).getName()); |
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185 | newParam.setFilterParam(params); |
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186 | listFilterUsed.add(newParam); |
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187 | } catch (CloneNotSupportedException e) { |
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188 | } |
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189 | } |
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190 | 19335 | nbrodin | |
191 | 19362 | nbrodin | // Metemos los filtros seleccionados en listFilterUsed
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192 | for (int i = 0; i < paramsList.size(); i++) |
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193 | listFilterUsed.add(paramsList.get(i)); |
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194 | 19335 | nbrodin | |
195 | 19307 | nbrodin | return listFilterUsed;
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196 | } |
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197 | |||
198 | } |