1 | // License: GPL. Copyright 2007 by Immanuel Scholz and others
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2 | package org.openstreetmap.josm.command;
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3 |
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4 | import static org.openstreetmap.josm.tools.I18n.marktr;
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5 | import static org.openstreetmap.josm.tools.I18n.tr;
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6 |
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7 | import java.util.ArrayList;
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8 | import java.util.Collection;
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9 | import java.util.Collections;
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10 | import java.util.LinkedList;
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11 | import java.util.List;
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12 |
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13 | import javax.swing.JLabel;
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14 |
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15 | import org.openstreetmap.josm.data.osm.OsmPrimitive;
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16 | import org.openstreetmap.josm.data.osm.OsmPrimitiveType;
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17 | import org.openstreetmap.josm.gui.DefaultNameFormatter;
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18 | import org.openstreetmap.josm.tools.ImageProvider;
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19 |
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20 | /**
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21 | * Command that manipulate the key/value structure of several objects. Manages deletion,
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22 | * adding and modify of values and keys.
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23 | *
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24 | * @author imi
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25 | */
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26 | public class ChangePropertyCommand extends Command {
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27 | /**
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28 | * All primitives that are affected with this command.
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29 | */
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30 | private final List<OsmPrimitive> objects;
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31 | /**
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32 | * The key that is subject to change.
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33 | */
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34 | private final String key;
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35 | /**
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36 | * The key value. If it is <code>null</code>, delete all key references with the given
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37 | * key. Otherwise, change the properties of all objects to the given value or create keys of
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38 | * those objects that do not have the key yet.
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39 | */
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40 | private final String value;
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41 |
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42 | public ChangePropertyCommand(Collection<? extends OsmPrimitive> objects, String key, String value) {
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43 | super();
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44 | this.objects = new LinkedList<OsmPrimitive>();
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45 | this.key = key;
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46 | this.value = value;
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47 | if (value == null) {
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48 | for (OsmPrimitive osm : objects) {
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49 | if(osm.get(key) != null) {
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50 | this.objects.add(osm);
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51 | }
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52 | }
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53 | } else {
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54 | for (OsmPrimitive osm : objects) {
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55 | String val = osm.get(key);
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56 | if (val == null || !value.equals(val)) {
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57 | this.objects.add(osm);
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58 | }
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59 | }
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60 | }
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61 | }
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62 |
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63 | public ChangePropertyCommand(OsmPrimitive object, String key, String value) {
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64 | this.objects = new LinkedList<OsmPrimitive>();
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65 | this.key = key;
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66 | this.value = value;
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67 | String val = object.get(key);
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68 | if ((value == null && val != null)
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69 | || (value != null && (val == null || !value.equals(val)))) {
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70 | this.objects.add(object);
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71 | }
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72 | }
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73 |
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74 | @Override public boolean executeCommand() {
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75 | super.executeCommand(); // save old
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76 | if (value == null) {
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77 | for (OsmPrimitive osm : objects) {
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78 | osm.setModified(true);
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79 | osm.remove(key);
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80 | }
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81 | } else {
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82 | for (OsmPrimitive osm : objects) {
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83 | osm.setModified(true);
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84 | osm.put(key, value);
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85 | }
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86 | }
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87 | return true;
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88 | }
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89 |
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90 | @Override public void fillModifiedData(Collection<OsmPrimitive> modified, Collection<OsmPrimitive> deleted, Collection<OsmPrimitive> added) {
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91 | modified.addAll(objects);
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92 | }
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93 |
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94 | @Override public JLabel getDescription() {
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95 | String text;
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96 | if (objects.size() == 1) {
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97 | OsmPrimitive primitive = objects.iterator().next();
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98 | String msg = "";
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99 | if (value == null) {
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100 | switch(OsmPrimitiveType.from(primitive)) {
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101 | case NODE: msg = marktr("Remove \"{0}\" for node ''{1}''"); break;
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102 | case WAY: msg = marktr("Remove \"{0}\" for way ''{1}''"); break;
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103 | case RELATION: msg = marktr("Remove \"{0}\" for relation ''{1}''"); break;
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104 | }
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105 | text = tr(msg, key, primitive.getDisplayName(DefaultNameFormatter.getInstance()));
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106 | } else {
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107 | switch(OsmPrimitiveType.from(primitive)) {
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108 | case NODE: msg = marktr("Set {0}={1} for node ''{2}''"); break;
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109 | case WAY: msg = marktr("Set {0}={1} for way ''{2}''"); break;
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110 | case RELATION: msg = marktr("Set {0}={1} for relation ''{2}''"); break;
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111 | }
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112 | text = tr(msg, key, value, primitive.getDisplayName(DefaultNameFormatter.getInstance()));
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113 | }
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114 | } else {
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115 | text = value == null
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116 | ? tr("Remove \"{0}\" for {1} objects", key, objects.size())
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117 | : tr("Set {0}={1} for {2} objects", key, value, objects.size());
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118 | }
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119 | return new JLabel(text, ImageProvider.get("data", "key"), JLabel.HORIZONTAL);
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120 | }
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121 |
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122 | @Override public Collection<PseudoCommand> getChildren() {
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123 | if (objects.size() == 1)
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124 | return null;
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125 | List<PseudoCommand> children = new ArrayList<PseudoCommand>();
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126 | for (final OsmPrimitive osm : objects) {
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127 | children.add(new PseudoCommand() {
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128 | @Override public JLabel getDescription() {
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129 | return new JLabel(
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130 | osm.getDisplayName(DefaultNameFormatter.getInstance()),
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131 | ImageProvider.get(OsmPrimitiveType.from(osm)),
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132 | JLabel.HORIZONTAL);
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133 |
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134 | }
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135 | @Override public Collection<? extends OsmPrimitive> getParticipatingPrimitives() {
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136 | return Collections.singleton(osm);
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137 | }
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138 |
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139 | });
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140 | }
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141 | return children;
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142 | }
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143 | }
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