svn-gvsig-desktop / trunk / libraries / libRaster / src / org / gvsig / raster / grid / filter / RasterFilterList.java @ 18393
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1 | 10740 | nacho | /* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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2 | *
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3 | * Copyright (C) 2006 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.grid.filter; |
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20 | |||
21 | import java.util.ArrayList; |
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22 | 11864 | bsanchez | import java.util.Stack; |
23 | 11716 | nacho | import java.util.TreeMap; |
24 | 10740 | nacho | |
25 | 10939 | nacho | import org.gvsig.raster.dataset.IBuffer; |
26 | 10740 | nacho | /**
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27 | * Esta clase representa la lista de filtros que debe ser manejada desde el
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28 | * RasterFilterListManager.
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29 | 12263 | bsanchez | *
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30 | 10740 | nacho | * @author Nacho Brodin (nachobrodin@gmail.com)
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31 | */
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32 | public class RasterFilterList { |
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33 | 15778 | nbrodin | private IBuffer rasterBuf = null; |
34 | private int typeFilter = -1; |
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35 | private TreeMap environment = new TreeMap(); |
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36 | 10740 | nacho | |
37 | 11970 | bsanchez | // Pila de objetos Filter (Contiene un RasterFilter)
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38 | 15778 | nbrodin | private ArrayList list = new ArrayList(); |
39 | private Stack status = new Stack(); |
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40 | 10740 | nacho | |
41 | 11970 | bsanchez | /**
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42 | 12166 | bsanchez | * A?ade un par?metro a la lista de filtros. Estos par?metros luego pueden ser
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43 | * utilizados por los managers que se registren
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44 | 11970 | bsanchez | * @param key Nombre del par?metro que coincide con el nombre de la clase.
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45 | * @param value Objeto
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46 | */
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47 | 15778 | nbrodin | public void addEnvParam(String key, Object value) { |
48 | environment.put(key, value); |
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49 | 11970 | bsanchez | } |
50 | 10740 | nacho | |
51 | 11970 | bsanchez | /**
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52 | * Obtiene un par?metro de la lista de filtros.
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53 | * @param key Identificador del par?metro. Coincide con el nombre de la clase del par?metro.
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54 | */
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55 | 15778 | nbrodin | public Object getEnvParam(String key) { |
56 | return environment.get(key);
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57 | 11970 | bsanchez | } |
58 | |||
59 | /**
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60 | 12180 | bsanchez | * Controla que los tipos de entrada y salida de los filtros sean los
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61 | * correctos
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62 | 17509 | bsanchez | * @throws FilterTypeException
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63 | 12180 | bsanchez | */
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64 | 17108 | nbrodin | public void controlTypes() throws FilterTypeException { |
65 | 12180 | bsanchez | RasterFilterListManager stackManager = new RasterFilterListManager(this); |
66 | stackManager.controlTypes(); |
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67 | } |
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68 | |||
69 | /**
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70 | 11970 | bsanchez | * A?ade un filtro al final de la lista
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71 | * @param filter filtro a?adido
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72 | 17509 | bsanchez | * @throws FilterTypeException
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73 | 11970 | bsanchez | */
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74 | 17108 | nbrodin | public void add(RasterFilter filter) throws FilterTypeException { |
75 | 12166 | bsanchez | if (isActive(filter.getName())) {
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76 | replace(filter, filter.getName()); |
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77 | } else {
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78 | list.add(filter); |
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79 | 12180 | bsanchez | controlTypes(); |
80 | 12166 | bsanchez | } |
81 | 15778 | nbrodin | filter.setEnv(environment); |
82 | 11970 | bsanchez | } |
83 | |||
84 | /**
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85 | 12180 | bsanchez | * Sustituye un filtro de una posici?n de la pila por otro
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86 | * @param filter
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87 | * @param i
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88 | 17509 | bsanchez | * @throws FilterTypeException
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89 | 12180 | bsanchez | */
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90 | 17108 | nbrodin | public void replace(RasterFilter filter, String name) throws FilterTypeException { |
91 | 12180 | bsanchez | boolean changed = false; |
92 | 15778 | nbrodin | filter.setEnv(environment); |
93 | 12180 | bsanchez | for (int i = list.size() - 1; i >= 0; i--) |
94 | if (((RasterFilter) list.get(i)).getName().equals(name)) {
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95 | list.remove(i); |
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96 | list.add(i, filter); |
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97 | changed = true;
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98 | } |
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99 | |||
100 | if (changed)
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101 | controlTypes(); |
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102 | } |
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103 | |||
104 | /**
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105 | 11970 | bsanchez | * A?ade un filtro en la lista en la posici?n indicada.
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106 | * @param filter filtro a?adido
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107 | * @param pos posici?n
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108 | 17509 | bsanchez | * @throws FilterTypeException
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109 | 11970 | bsanchez | */
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110 | 17108 | nbrodin | public void add(RasterFilter filter, int pos) throws FilterTypeException { |
111 | 11970 | bsanchez | try {
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112 | list.add(pos, filter); |
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113 | 12180 | bsanchez | controlTypes(); |
114 | 11818 | nacho | } catch (IndexOutOfBoundsException e) { |
115 | add(filter); |
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116 | } |
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117 | 15778 | nbrodin | filter.setEnv(environment); |
118 | 11970 | bsanchez | } |
119 | 10740 | nacho | |
120 | 11970 | bsanchez | /**
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121 | * Elimina un filtro a partir de su nombre
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122 | * @param name Nombre del filtro a eliminar
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123 | 17509 | bsanchez | * @throws FilterTypeException
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124 | 11970 | bsanchez | */
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125 | 17108 | nbrodin | public void remove(String name) throws FilterTypeException { |
126 | 12180 | bsanchez | boolean changed = false; |
127 | for (int i = list.size() - 1; i >= 0; i--) |
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128 | if (((RasterFilter) list.get(i)).getName().equals(name)) {
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129 | 11970 | bsanchez | list.remove(i); |
130 | 12180 | bsanchez | changed = true;
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131 | } |
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132 | if (changed)
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133 | controlTypes(); |
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134 | 11970 | bsanchez | } |
135 | 10740 | nacho | |
136 | 11970 | bsanchez | /**
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137 | * Elimina un filtro por clase.
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138 | 12263 | bsanchez | *
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139 | 11970 | bsanchez | * @param baseFilterClass
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140 | 17509 | bsanchez | * @throws FilterTypeException
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141 | 11970 | bsanchez | */
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142 | 17108 | nbrodin | public void remove(Class baseFilterClass) throws FilterTypeException { |
143 | 12180 | bsanchez | boolean changed = false; |
144 | for (int i = 0; i < lenght(); i++) |
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145 | 13348 | bsanchez | if (baseFilterClass.isInstance((RasterFilter) list.get(i))) {
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146 | 11970 | bsanchez | list.remove(i); |
147 | i--; |
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148 | 12180 | bsanchez | changed = true;
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149 | 11970 | bsanchez | } |
150 | 12180 | bsanchez | if (changed)
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151 | controlTypes(); |
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152 | 11970 | bsanchez | } |
153 | 10740 | nacho | |
154 | 11970 | bsanchez | /**
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155 | * Devuelve el tipo de dato de retorno al aplicar la pila de filtros
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156 | * @return
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157 | */
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158 | public int getOutDataType() { |
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159 | if (list.size() > 0) |
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160 | return ((RasterFilter) list.get(list.size() - 1)).getOutRasterDataType(); |
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161 | else
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162 | return rasterBuf.getDataType();
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163 | } |
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164 | 10740 | nacho | |
165 | 11970 | bsanchez | /**
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166 | * Devuelve el raster resultado de la aplicacion de la pila de filtros
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167 | * @return
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168 | */
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169 | public IBuffer getResult() {
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170 | return rasterBuf;
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171 | } |
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172 | 10740 | nacho | |
173 | 11970 | bsanchez | /**
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174 | * Obtiene la cantidad de filtros en la lista
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175 | * @return N?mero de filtros apilados
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176 | */
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177 | public int lenght() { |
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178 | return list.size();
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179 | } |
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180 | 10740 | nacho | |
181 | 11970 | bsanchez | /**
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182 | * Obtiene el filtro apilado de la posici?n i o null si el indice es incorrecto
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183 | * @param i Posici?n a acceder en la pila
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184 | * @return Filtro
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185 | */
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186 | public RasterFilter get(int i) { |
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187 | if (i >= list.size() || i < 0) |
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188 | return null; |
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189 | 13959 | bsanchez | return (RasterFilter) list.get(i);
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190 | 11970 | bsanchez | } |
191 | 10740 | nacho | |
192 | 11970 | bsanchez | /**
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193 | * Obtiene el filtro apilado de nombre name o null si no existe
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194 | * @param i Nombre del filtro buscado
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195 | * @return Filtro
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196 | */
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197 | public RasterFilter get(String name) { |
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198 | for (int i = list.size() - 1; i >= 0; i--) { |
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199 | if (((RasterFilter) list.get(i)).getName().equals(name))
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200 | 13959 | bsanchez | return (RasterFilter) list.get(i);
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201 | 11970 | bsanchez | } |
202 | return null; |
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203 | } |
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204 | 10740 | nacho | |
205 | 11970 | bsanchez | /**
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206 | * Obtiene el filtro apilado que corresponde con el nombre
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207 | * @param name Nombre de filtro
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208 | * @return Filtro en caso de que exista un filtro apilado de ese tipo
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209 | * o null si no hay ninguno.
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210 | */
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211 | public RasterFilter getByName(String name) { |
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212 | for (int i = 0; i < lenght(); i++) { |
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213 | if (((RasterFilter) list.get(i)).getName().equals(name))
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214 | 13959 | bsanchez | return (RasterFilter) list.get(i);
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215 | 11970 | bsanchez | } |
216 | return null; |
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217 | } |
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218 | 10740 | nacho | |
219 | 11970 | bsanchez | /**
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220 | * Obtiene el primer filtro de la lista que es instancia de la clase pasada por
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221 | * par?metro
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222 | * @param baseFilterClass Filtro base
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223 | * @return RasterFilter
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224 | */
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225 | public RasterFilter getFilterByBaseClass(Class baseFilterClass) { |
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226 | for (int i = 0; i < lenght(); i++) { |
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227 | 13959 | bsanchez | if (baseFilterClass.isInstance((RasterFilter) list.get(i)))
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228 | return (RasterFilter) list.get(i);
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229 | 11970 | bsanchez | } |
230 | return null; |
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231 | } |
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232 | 10740 | nacho | |
233 | 11970 | bsanchez | /**
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234 | * Obtiene el tipo del filtro de la pila de la posici?n i
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235 | * @param i Posici?n a acceder en la pila
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236 | * @return tipo de filtro
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237 | */
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238 | public String getName(int i) { |
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239 | return ((RasterFilter) list.get(i)).getName();
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240 | } |
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241 | 10740 | nacho | |
242 | 11970 | bsanchez | /**
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243 | * Elimina todos los filtros de la pila
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244 | */
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245 | public void clear() { |
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246 | list.clear(); |
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247 | } |
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248 | 10740 | nacho | |
249 | 11970 | bsanchez | /**
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250 | * Sustituye un filtro de una posici?n de la pila por otro
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251 | * @param filter
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252 | * @param i
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253 | */
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254 | public void replace(RasterFilter filter, int i) { |
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255 | 15778 | nbrodin | filter.setEnv(environment); |
256 | 11970 | bsanchez | list.remove(i); |
257 | list.add(i, filter); |
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258 | } |
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259 | |||
260 | /**
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261 | 13782 | nacho | * Move un filtro determinado a la posici?n especificada.
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262 | * @param filter Filtro a mover
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263 | * @param position Posici?n a asignar
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264 | 13825 | nacho | * @return Devuelve true si el filtro existia y lo ha movido y false si no lo ha hecho.
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265 | 13782 | nacho | */
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266 | 13825 | nacho | public boolean move(Class filter, int position) { |
267 | 13782 | nacho | RasterFilter f = null;
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268 | for (int i = 0; i < list.size(); i++) { |
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269 | if(filter.isInstance(list.get(i))) {
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270 | 13959 | bsanchez | f = (RasterFilter) list.get(i); |
271 | 13782 | nacho | list.remove(i); |
272 | break;
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273 | } |
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274 | } |
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275 | 13825 | nacho | if(f != null) { |
276 | 13782 | nacho | list.add(position, f); |
277 | 13825 | nacho | return true; |
278 | } |
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279 | return false; |
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280 | 13782 | nacho | } |
281 | 16645 | bsanchez | |
282 | 13782 | nacho | /**
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283 | 11970 | bsanchez | * Asigna el raster de entrada inicial
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284 | * @param raster
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285 | */
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286 | public void setInitRasterBuf(IBuffer raster) { |
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287 | rasterBuf = (IBuffer) raster; |
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288 | typeFilter = rasterBuf.getDataType(); |
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289 | } |
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290 | |||
291 | /**
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292 | * Devuelve el tipo de datos inicial de la lista
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293 | * @return Tipo de dato del raster inicial
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294 | */
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295 | public int getInitDataType() { |
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296 | return typeFilter;
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297 | } |
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298 | |||
299 | /**
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300 | * Asigna el tipo de dato inicial
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301 | * @param dt
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302 | */
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303 | public void setInitDataType(int dt) { |
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304 | this.typeFilter = dt;
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305 | } |
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306 | |||
307 | /**
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308 | * M?todo que devuelve true si el tipo de filtro pasado por par?metro est? en la
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309 | * pila y false si no lo est?.
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310 | * @param type Tipo de par?metro a comprobar
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311 | * @return true si est? en la pila y false si no lo est?
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312 | */
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313 | public boolean isActive(String name) { |
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314 | for (int i = list.size() - 1; i >= 0; i--) { |
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315 | if (((RasterFilter) list.get(i)).getName().equals(name))
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316 | return true; |
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317 | } |
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318 | return false; |
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319 | } |
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320 | |||
321 | /**
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322 | * M?todo que devuelve true si el tipo de filtro pasado por par?metro est? en
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323 | * la pila y false si no lo est?.
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324 | 12263 | bsanchez | *
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325 | 11970 | bsanchez | * @param filter Tipo de filtro a comprobar
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326 | * @return true si est? en la pila y false si no lo est?
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327 | */
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328 | public boolean isActive(RasterFilter filter) { |
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329 | for (int i = list.size() - 1; i >= 0; i--) { |
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330 | if (((RasterFilter) list.get(i)).equals(filter)) {
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331 | return true; |
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332 | } |
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333 | } |
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334 | return false; |
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335 | } |
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336 | |||
337 | /**
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338 | * Devuelve la posici?n en la lista de una clase de filtro concreta
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339 | 12263 | bsanchez | *
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340 | 11970 | bsanchez | * @param c Clase a buscar en la lista
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341 | * @return posici?n en la lista
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342 | */
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343 | public int getPosition(Class c) { |
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344 | for (int i = 0; i < list.size(); i++) |
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345 | if (c.isInstance(list.get(i)))
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346 | return i;
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347 | return -1; |
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348 | } |
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349 | |||
350 | /**
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351 | 11811 | bsanchez | * Aplica los filtros de la pila sobre el buffer correspondiente
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352 | * @param dataType
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353 | 12325 | bsanchez | * @throws InterruptedException
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354 | 11811 | bsanchez | */
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355 | 12325 | bsanchez | private void executeFilterByDataType(int dataType) throws InterruptedException { |
356 | 17509 | bsanchez | environment.put("FirstUseTransparency", Boolean.TRUE); |
357 | 17884 | bsanchez | environment.put("HasNoDataFilter", Boolean.valueOf(isActive("nodata"))); |
358 | |||
359 | environment.put("FirstRaster", rasterBuf);
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360 | 11811 | bsanchez | for (int i = 0; i < list.size(); i++) { |
361 | 13959 | bsanchez | RasterFilter filter = (RasterFilter) list.get(i); |
362 | 10740 | nacho | |
363 | 12180 | bsanchez | // TODO: Arquitectura. Quitar el ControlTypes y en este momento
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364 | // cerciorarse de si el tipo del filtro es totalmente el correcto o hay
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365 | // que recrearlo. Ejemplo:
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366 | // Si el filtro que tenemos antes de preprocesar es de tipo Byte y la
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367 | // entrada de datos es de tipo float, reconstruir solo este filtro para
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368 | // que sea de tipo float
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369 | |||
370 | 11811 | bsanchez | filter.addParam("raster", rasterBuf);
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371 | filter.execute(); |
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372 | 10740 | nacho | |
373 | 11811 | bsanchez | if (filter.getResult("raster") != null) |
374 | this.rasterBuf = (IBuffer) filter.getResult("raster"); |
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375 | } |
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376 | 17884 | bsanchez | environment.remove("FirstRaster");
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377 | 11811 | bsanchez | } |
378 | 10740 | nacho | |
379 | 11811 | bsanchez | /**
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380 | * Aplica los filtros sobre un RasterBuf
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381 | * @return IBuffer de salida
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382 | 12325 | bsanchez | * @throws InterruptedException
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383 | 11811 | bsanchez | */
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384 | 12325 | bsanchez | public IBuffer execute() throws InterruptedException { |
385 | 11811 | bsanchez | if (rasterBuf == null) |
386 | return null; |
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387 | executeFilterByDataType(rasterBuf.getDataType()); |
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388 | return rasterBuf;
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389 | } |
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390 | |||
391 | 11970 | bsanchez | /**
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392 | 11811 | bsanchez | * Muestra el contenido de la pila de filtros para depuraci?n
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393 | */
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394 | public void show() { |
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395 | System.out.println("--------------------------------------------"); |
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396 | |||
397 | 12180 | bsanchez | for (int i = 0; i < list.size() ; i++) { |
398 | 11811 | bsanchez | System.out.println("FILTRO:" + i + " NAME:" + ((RasterFilter) list.get(i)).getName() + " FIL:" + ((RasterFilter) list.get(i)).toString()); |
399 | } |
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400 | } |
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401 | |||
402 | public void resetPercent() { |
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403 | for (int i = 0; i < list.size(); i++) |
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404 | ((RasterFilter) list.get(i)).resetPercent(); |
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405 | } |
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406 | |||
407 | public int getPercent() { |
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408 | int percent = 0; |
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409 | 11864 | bsanchez | if (list.size() == 0) |
410 | return 0; |
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411 | 11811 | bsanchez | for (int i = 0; i < list.size(); i++) |
412 | percent += ((RasterFilter) list.get(i)).getPercent(); |
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413 | 11864 | bsanchez | |
414 | 11811 | bsanchez | percent = percent / list.size(); |
415 | return percent;
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416 | } |
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417 | 11970 | bsanchez | |
418 | 11811 | bsanchez | /**
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419 | 11864 | bsanchez | * Guarda el estado de la lista de filtros en una pila, que se podr?
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420 | * ir recuperando con popStatus()
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421 | */
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422 | public void pushStatus() { |
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423 | status.push(getStatusCloned()); |
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424 | } |
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425 | |||
426 | /**
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427 | * Obtiene el estado actual de los filtros, el ArrayList devuelto es una
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428 | * clonaci?n del original, asi no compartiran datos.
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429 | * @return
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430 | */
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431 | public ArrayList getStatusCloned() { |
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432 | ArrayList newArray = new ArrayList(); |
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433 | for (int i = 0; i < list.size(); i++) { |
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434 | try {
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435 | newArray.add(((RasterFilter) list.get(i)).clone()); |
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436 | } catch (CloneNotSupportedException e) { |
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437 | System.out.println("No se ha podido clonar"); |
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438 | } |
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439 | } |
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440 | return newArray;
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441 | } |
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442 | 11970 | bsanchez | |
443 | 11864 | bsanchez | /**
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444 | * Define el estado actual de los filtros
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445 | * @param newArray
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446 | */
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447 | public void setStatus(ArrayList newArray) { |
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448 | list.clear(); |
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449 | for (int i = 0; i < newArray.size(); i++) { |
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450 | 13959 | bsanchez | list.add(newArray.get(i)); |
451 | 11864 | bsanchez | } |
452 | } |
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453 | |||
454 | /**
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455 | * Recupera un estado guardado con antelaci?n mediante el m?todo pushStatus()
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456 | */
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457 | public void popStatus() { |
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458 | if (status.size() <= 0) |
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459 | return;
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460 | |||
461 | setStatus((ArrayList) status.pop());
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462 | } |
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463 | 14384 | nbrodin | |
464 | /**
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465 | * Obtiene el TreeMap con los par?metros
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466 | * @return TreeMap
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467 | */
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468 | 15778 | nbrodin | public TreeMap getEnv() { |
469 | return environment;
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470 | 14384 | nbrodin | } |
471 | |||
472 | /**
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473 | 15778 | nbrodin | * Asigna el TreeMap con los par?metros del entorno
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474 | * @param env
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475 | 14384 | nbrodin | */
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476 | 15778 | nbrodin | public void setEnv(TreeMap env) { |
477 | this.environment = env;
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478 | 14384 | nbrodin | } |
479 | 11811 | bsanchez | } |