svn-gvsig-desktop / tags / v1_0_2_Build_913 / libraries / libUI / src / org / gvsig / gui / beans / controls / dnd / JDnDListModel.java @ 11431
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1 | 4520 | jaume | /* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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2 | *
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3 | * Copyright (C) 2005 IVER T.I. and Generalitat Valenciana.
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4 | *
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5 | * This program is free software; you can redistribute it and/or
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6 | * modify it under the terms of the GNU General Public License
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7 | * as published by the Free Software Foundation; either version 2
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8 | * of the License, or (at your option) any later version.
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9 | *
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10 | * This program is distributed in the hope that it will be useful,
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11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 | * GNU General Public License for more details.
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14 | *
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15 | * You should have received a copy of the GNU General Public License
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16 | * along with this program; if not, write to the Free Software
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17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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18 | *
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19 | * For more information, contact:
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20 | *
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21 | * Generalitat Valenciana
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22 | * Conselleria d'Infraestructures i Transport
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23 | * Av. Blasco Ib??ez, 50
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24 | * 46010 VALENCIA
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25 | * SPAIN
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26 | *
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27 | * +34 963862235
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28 | * gvsig@gva.es
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29 | * www.gvsig.gva.es
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30 | *
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31 | * or
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32 | *
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33 | * IVER T.I. S.A
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34 | * Salamanca 50
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35 | * 46005 Valencia
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36 | * Spain
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37 | *
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38 | * +34 963163400
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39 | * dac@iver.es
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40 | */
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41 | |||
42 | /* CVS MESSAGES:
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43 | *
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44 | * $Id$
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45 | * $Log$
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46 | * Revision 1.1 2006-03-22 11:18:29 jaume
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47 | * *** empty log message ***
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48 | *
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49 | * Revision 1.4 2006/02/28 15:25:14 jaume
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50 | * *** empty log message ***
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51 | *
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52 | * Revision 1.2.2.3 2006/01/31 16:25:24 jaume
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53 | * correcciones de bugs
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54 | *
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55 | * Revision 1.3 2006/01/26 16:07:14 jaume
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56 | * *** empty log message ***
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57 | *
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58 | * Revision 1.2.2.1 2006/01/26 12:59:33 jaume
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59 | * 0.5
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60 | *
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61 | * Revision 1.2 2006/01/24 14:36:33 jaume
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62 | * This is the new version
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63 | *
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64 | * Revision 1.1.2.2 2006/01/17 12:55:40 jaume
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65 | * *** empty log message ***
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66 | *
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67 | * Revision 1.1.2.1 2006/01/10 13:11:38 jaume
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68 | * *** empty log message ***
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69 | *
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70 | * Revision 1.1.2.1 2005/12/29 08:26:54 jaume
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71 | * some gui issues where fixed
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72 | *
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73 | * Revision 1.1.2.2 2005/12/22 16:46:00 jaume
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74 | * puede borrar m?ltiples intervalos de entradas dentro de la lista
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75 | *
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76 | * Revision 1.1.2.1 2005/12/19 18:12:35 jaume
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77 | * *** empty log message ***
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78 | *
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79 | *
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80 | */
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81 | /**
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82 | *
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83 | */
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84 | package org.gvsig.gui.beans.controls.dnd; |
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85 | |||
86 | import java.util.ArrayList; |
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87 | import java.util.Collection; |
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88 | import java.util.Iterator; |
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89 | |||
90 | import javax.swing.AbstractListModel; |
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91 | |||
92 | |||
93 | /**
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94 | * List model to use in junction the JDnDList. Contains some useful tools.
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95 | *
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96 | * @author jaume dominguez faus - jaume.dominguez@iver.es
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97 | *
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98 | */
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99 | public class JDnDListModel extends AbstractListModel { |
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100 | private ArrayList items = new ArrayList(); |
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101 | /**
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102 | * Inserts a collection of items before the specified index
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103 | */
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104 | public void insertItems( int index, Collection objects ) { |
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105 | // Handle the case where the items are being added to the end of the list
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106 | if( index == -1 ) { |
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107 | // Add the items
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108 | for( Iterator i = objects.iterator(); i.hasNext(); ) { |
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109 | String item = ( String )i.next(); |
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110 | addElement(items.size(), item ); |
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111 | } |
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112 | } else {
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113 | // Insert the items
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114 | for( Iterator i = objects.iterator(); i.hasNext(); ) { |
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115 | Object item = i.next();
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116 | insertElement( index++, item ); |
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117 | } |
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118 | } |
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119 | |||
120 | // Tell the list to update itself
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121 | this.fireContentsChanged( this, 0, this.items.size() - 1 ); |
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122 | } |
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123 | |||
124 | /**
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125 | * Inserts a new element into the list at the position mentioned in the index param.
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126 | * @param index
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127 | * @param item
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128 | */
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129 | public boolean insertElement(int index, Object element) { |
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130 | if (element == null) { |
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131 | return false; |
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132 | } |
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133 | for (int i = 0; i < items.size(); i++) { |
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134 | |||
135 | if (items.get(i).equals(items)) {
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136 | return false; |
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137 | } |
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138 | } |
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139 | |||
140 | this.items.add(index, element);
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141 | return true; |
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142 | } |
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143 | |||
144 | /**
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145 | * Adds a new element at the position indicated by pos of the list.
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146 | * @param j
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147 | * @param pos
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148 | */
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149 | public boolean addElement(int j, Object element) { |
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150 | if (element == null) { |
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151 | return false; |
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152 | } |
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153 | |||
154 | for (int i = 0; i < items.size(); i++) { |
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155 | if (items.get(i).equals(items)) {
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156 | return false; |
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157 | } |
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158 | } |
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159 | this.items.add(j, element);
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160 | fireContentsChanged(this, items.size() - 1, items.size() - 1); |
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161 | return true; |
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162 | } |
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163 | |||
164 | /**
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165 | * Adds a new element at the position indicated by pos of the list.
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166 | * @param j
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167 | * @param pos
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168 | */
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169 | public boolean addElement(Object element) { |
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170 | return addElement(items.size(), element);
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171 | } |
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172 | |||
173 | /**
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174 | * Removes every elements contained in the collection from this list.
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175 | */
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176 | public void delElements(Collection c) { |
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177 | items.removeAll(c); |
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178 | this.fireContentsChanged(this, 0, items.size()); |
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179 | } |
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180 | |||
181 | /**
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182 | * Removes the items of the list mentioned by the index array passed as argument.
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183 | * @param indices
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184 | */
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185 | public void delIndices(int[] indices){ |
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186 | int removed = 0; |
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187 | for (int i = 0; i < indices.length; i++) { |
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188 | items.remove(indices[i]-removed); |
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189 | removed++; |
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190 | } |
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191 | } |
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192 | |||
193 | public void itemsMoved( int newIndex, int[] indicies ) { |
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194 | |||
195 | // Copy the objects to a temporary ArrayList
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196 | ArrayList objects = new ArrayList(); |
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197 | for( int i=0; i<indicies.length; i++ ) { |
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198 | objects.add( this.items.get( indicies[ i ] ) );
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199 | } |
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200 | |||
201 | // Delete the objects from the list
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202 | for( int i=indicies.length-1; i>=0; i-- ) { |
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203 | this.items.remove( indicies[ i ] );
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204 | } |
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205 | |||
206 | // Insert the items at the new location
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207 | insertItems( newIndex, objects ); |
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208 | } |
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209 | |||
210 | /* (non-Javadoc)
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211 | * @see javax.swing.ListModel#getSize()
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212 | */
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213 | public int getSize() { |
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214 | return items.size();
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215 | } |
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216 | |||
217 | /* (non-Javadoc)
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218 | * @see javax.swing.ListModel#getElementAt(int)
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219 | */
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220 | public Object getElementAt(int index) { |
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221 | return items.get(index);
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222 | } |
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223 | |||
224 | /**
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225 | * Removes any item currently contained by this list.
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226 | *
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227 | */
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228 | public void clear() { |
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229 | items.clear(); |
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230 | fireContentsChanged(this, 0, 0); |
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231 | } |
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232 | |||
233 | /**
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234 | * Returns an ArrayList containing the elements of this list.
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235 | */
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236 | public ArrayList getElements() { |
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237 | return items;
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238 | } |
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239 | |||
240 | |||
241 | } |