svn-gvsig-desktop / tags / v1_0_2_Build_892 / libraries / libFMap / src / com / iver / cit / gvsig / fmap / ExtentHistory.java @ 10278
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1 | 1100 | fjp | /* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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2 | *
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3 | * Copyright (C) 2004 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 | 213 | fernando | package com.iver.cit.gvsig.fmap; |
42 | |||
43 | 485 | vcaballero | import com.iver.utiles.XMLEntity; |
44 | |||
45 | 937 | vcaballero | import java.awt.Rectangle; |
46 | 213 | fernando | import java.awt.geom.Rectangle2D; |
47 | |||
48 | 449 | vcaballero | |
49 | 485 | vcaballero | /**
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50 | 1034 | vcaballero | * Clase que gestiona los diferentes extent por los que ha pasado la vista.
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51 | 485 | vcaballero | *
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52 | * @author Vicente Caballero Navarro
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53 | */
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54 | 213 | fernando | public class ExtentHistory { |
55 | 1034 | vcaballero | private int NUMREC; |
56 | private Rectangle2D[] extents; |
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57 | private int num = 0; |
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58 | 213 | fernando | |
59 | 1034 | vcaballero | /**
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60 | * Creates a new ExtentsHistory object.
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61 | */
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62 | public ExtentHistory() {
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63 | NUMREC = 10;
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64 | 1326 | fernando | extents = new Rectangle2D[NUMREC]; |
65 | 1034 | vcaballero | } |
66 | 213 | fernando | |
67 | 1034 | vcaballero | /**
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68 | * Creates a new ExtentsHistory object.
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69 | *
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70 | * @param numEntries Numero de entradas que se guardan en el historico de
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71 | * rect?ngulos, por defecto 20
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72 | */
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73 | public ExtentHistory(int numEntries) { |
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74 | NUMREC = numEntries; |
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75 | } |
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76 | 213 | fernando | |
77 | 1034 | vcaballero | /**
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78 | * Pone un nuevo rect?ngulo al final del array
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79 | *
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80 | * @param ext Rect?ngulo que se a?ade al hist?rico
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81 | */
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82 | public void put(Rectangle2D ext) { |
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83 | if ((ext != null) && ((num < 1) || (ext != extents[num - 1]))) { |
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84 | if (num < (NUMREC)) {
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85 | extents[num] = ext; |
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86 | num = num + 1;
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87 | } else {
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88 | for (int i = 0; i < (NUMREC - 1); i++) { |
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89 | extents[i] = extents[i + 1];
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90 | } |
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91 | 213 | fernando | |
92 | 1034 | vcaballero | extents[num - 1] = ext;
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93 | } |
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94 | } |
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95 | } |
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96 | 213 | fernando | |
97 | 1034 | vcaballero | /**
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98 | * Devuelve true si hay alg?n rect?ngulo en el hist?rico
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99 | *
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100 | * @return true o false en caso de que haya o no haya rect?ngulos
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101 | */
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102 | public boolean hasPrevious() { |
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103 | return num > 0; |
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104 | } |
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105 | 213 | fernando | |
106 | 1034 | vcaballero | /**
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107 | * Obtiene el ?ltimo rect?ngulo que se a?adi? al hist?rico
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108 | *
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109 | * @return Ultimo rect?ngulo a?adido
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110 | */
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111 | public Rectangle2D get() { |
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112 | Rectangle2D ext = extents[num - 1]; |
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113 | 213 | fernando | |
114 | 1034 | vcaballero | return ext;
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115 | } |
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116 | 213 | fernando | |
117 | 1034 | vcaballero | /**
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118 | * Devuelve el ?ltimo rect?ngulo del hist?rico y lo elimina del mismo
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119 | *
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120 | * @return Ultimo rect?ngulo a?adido
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121 | */
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122 | public Rectangle2D removePrev() { |
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123 | 8765 | jjdelcerro | Rectangle2D ext = extents[--num];
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124 | 1034 | vcaballero | return ext;
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125 | } |
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126 | 485 | vcaballero | |
127 | 1034 | vcaballero | /**
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128 | * Devuelve el XMLEntity con la informaci?n para poder reproducir de nuevo
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129 | * el objeto actual.
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130 | *
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131 | * @return XMLEntity.
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132 | */
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133 | public XMLEntity getXMLEntity() {
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134 | XMLEntity xml = new XMLEntity();
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135 | 1094 | vcaballero | xml.putProperty("className",this.getClass().getName()); |
136 | 1034 | vcaballero | xml.putProperty("num", num);
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137 | xml.putProperty("numrec", NUMREC);
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138 | 485 | vcaballero | |
139 | 1034 | vcaballero | for (int i = 0; i < NUMREC; i++) { |
140 | if (extents[i] != null) { |
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141 | xml.putProperty("extent" + i + "X", extents[i].getX()); |
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142 | xml.putProperty("extent" + i + "Y", extents[i].getY()); |
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143 | xml.putProperty("extent" + i + "W", extents[i].getWidth()); |
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144 | xml.putProperty("extent" + i + "H", extents[i].getHeight()); |
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145 | } |
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146 | } |
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147 | 485 | vcaballero | |
148 | 1034 | vcaballero | return xml;
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149 | } |
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150 | 485 | vcaballero | |
151 | 1034 | vcaballero | /**
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152 | * Crea un nuevo ExtentHistory a partir del XMLEntity.
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153 | *
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154 | * @param xml XMLEntity
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155 | *
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156 | * @return Nuevo ExtentHistory.
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157 | */
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158 | 2183 | fernando | public static ExtentHistory createFromXML03(XMLEntity xml) { |
159 | ExtentHistory eh = new ExtentHistory();
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160 | eh.num = xml.getIntProperty("num");
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161 | eh.NUMREC = xml.getIntProperty("numrec");
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162 | |||
163 | for (int i = 0; i < eh.NUMREC; i++) { |
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164 | try {
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165 | eh.extents[i] = new Rectangle2D.Double(xml.getDoubleProperty( |
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166 | "extent" + i + "X"), |
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167 | xml.getDoubleProperty("extent" + i + "Y"), |
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168 | xml.getDoubleProperty("extent" + i + "W"), |
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169 | xml.getDoubleProperty("extent" + i + "H")); |
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170 | } catch (Exception e) { |
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171 | ///System.out.println("En las ExtentHistory =" + e); //TODO o se captura de alguna forma o se mete un nuevo parametro en el xml para saber exactamente cuantos rect?gulos se han a?adido.
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172 | } |
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173 | } |
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174 | |||
175 | return eh;
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176 | } |
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177 | |||
178 | /**
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179 | * Crea un nuevo ExtentHistory a partir del XMLEntity.
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180 | *
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181 | * @param xml XMLEntity
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182 | *
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183 | * @return Nuevo ExtentHistory.
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184 | */
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185 | 1034 | vcaballero | public static ExtentHistory createFromXML(XMLEntity xml) { |
186 | ExtentHistory eh = new ExtentHistory();
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187 | eh.num = xml.getIntProperty("num");
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188 | eh.NUMREC = xml.getIntProperty("numrec");
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189 | 485 | vcaballero | |
190 | 1034 | vcaballero | for (int i = 0; i < eh.NUMREC; i++) { |
191 | try {
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192 | eh.extents[i] = new Rectangle2D.Double(xml.getDoubleProperty( |
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193 | "extent" + i + "X"), |
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194 | xml.getDoubleProperty("extent" + i + "Y"), |
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195 | xml.getDoubleProperty("extent" + i + "W"), |
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196 | xml.getDoubleProperty("extent" + i + "H")); |
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197 | } catch (Exception e) { |
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198 | 1041 | vcaballero | ///System.out.println("En las ExtentHistory =" + e); //TODO o se captura de alguna forma o se mete un nuevo parametro en el xml para saber exactamente cuantos rect?gulos se han a?adido.
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199 | 1034 | vcaballero | } |
200 | } |
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201 | |||
202 | return eh;
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203 | } |
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204 | 213 | fernando | } |