1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.actions;
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3 |
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4 | import static org.openstreetmap.josm.tools.I18n.tr;
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5 |
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6 | import java.awt.event.ActionEvent;
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7 |
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8 | import javax.swing.AbstractAction;
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9 | import javax.swing.event.ListSelectionEvent;
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10 | import javax.swing.event.ListSelectionListener;
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11 |
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12 | import org.openstreetmap.josm.Main;
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13 | import org.openstreetmap.josm.data.osm.OsmPrimitive;
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14 | import org.openstreetmap.josm.gui.MainApplication;
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15 | import org.openstreetmap.josm.gui.conflict.pair.nodes.NodeListTable;
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16 | import org.openstreetmap.josm.gui.conflict.pair.relation.RelationMemberTable;
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17 | import org.openstreetmap.josm.gui.dialogs.relation.MemberTable;
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18 | import org.openstreetmap.josm.gui.layer.LayerManager.LayerAddEvent;
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19 | import org.openstreetmap.josm.gui.layer.LayerManager.LayerChangeListener;
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20 | import org.openstreetmap.josm.gui.layer.LayerManager.LayerOrderChangeEvent;
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21 | import org.openstreetmap.josm.gui.layer.LayerManager.LayerRemoveEvent;
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22 | import org.openstreetmap.josm.gui.layer.MainLayerManager.ActiveLayerChangeEvent;
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23 | import org.openstreetmap.josm.gui.layer.MainLayerManager.ActiveLayerChangeListener;
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24 | import org.openstreetmap.josm.gui.layer.OsmDataLayer;
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25 | import org.openstreetmap.josm.gui.widgets.OsmPrimitivesTable;
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26 | import org.openstreetmap.josm.tools.CheckParameterUtil;
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27 |
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28 | /**
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29 | * An action that zooms to the selected OSM primitive in a table of primitives.
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30 | */
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31 | public class ZoomToAction extends AbstractAction implements LayerChangeListener, ActiveLayerChangeListener, ListSelectionListener {
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32 |
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33 | private final OsmPrimitivesTable table;
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34 |
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35 | private final String descriptionNominal;
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36 | private final String descriptionInactiveLayer;
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37 | private final String descriptionNoSelection;
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38 |
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39 | /**
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40 | * Creates a new, generic zoom to action
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41 | * @param table The table to get the selected element from
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42 | * @param descriptionNominal The description to display if zooming is possible
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43 | * @param descriptionInactiveLayer The description to display if zooming is impossible because the layer is not active
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44 | * @param descriptionNoSelection The description to display if zooming is impossible because the table selection is empty
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45 | */
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46 | public ZoomToAction(OsmPrimitivesTable table, String descriptionNominal, String descriptionInactiveLayer, String descriptionNoSelection) {
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47 | CheckParameterUtil.ensureParameterNotNull(table);
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48 | this.table = table;
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49 | this.descriptionNominal = descriptionNominal;
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50 | this.descriptionInactiveLayer = descriptionInactiveLayer;
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51 | this.descriptionNoSelection = descriptionNoSelection;
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52 | putValue(NAME, tr("Zoom to"));
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53 | putValue(SHORT_DESCRIPTION, descriptionNominal);
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54 | updateEnabledState();
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55 | }
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56 |
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57 | /**
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58 | * Creates a new zoom to action for a {@link MemberTable} using the matching description strings
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59 | * @param table The table to get the selected element from
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60 | */
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61 | public ZoomToAction(MemberTable table) {
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62 | this(table,
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63 | tr("Zoom to the object the first selected member refers to"),
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64 | tr("Zooming disabled because layer of this relation is not active"),
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65 | tr("Zooming disabled because there is no selected member"));
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66 | }
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67 |
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68 | /**
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69 | * Creates a new zoom to action for a {@link RelationMemberTable} using the matching description strings
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70 | * @param table The table to get the selected element from
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71 | */
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72 | public ZoomToAction(RelationMemberTable table) {
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73 | this(table,
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74 | tr("Zoom to the object the first selected member refers to"),
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75 | tr("Zooming disabled because layer of this relation is not active"),
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76 | tr("Zooming disabled because there is no selected member"));
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77 | }
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78 |
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79 | /**
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80 | * Creates a new zoom to action for a {@link NodeListTable} using the matching description strings
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81 | * @param table The table to get the selected element from
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82 | */
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83 | public ZoomToAction(NodeListTable table) {
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84 | this(table,
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85 | tr("Zoom to the first selected node"),
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86 | tr("Zooming disabled because layer of this way is not active"),
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87 | tr("Zooming disabled because there is no selected node"));
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88 | }
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89 |
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90 | @Override
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91 | public void actionPerformed(ActionEvent e) {
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92 | if (!isEnabled())
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93 | return;
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94 | int[] rows = this.table.getSelectedRows();
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95 | if (rows.length == 0)
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96 | return;
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97 | int row = rows[0];
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98 | OsmDataLayer layer = this.table.getLayer();
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99 | OsmPrimitive primitive = this.table.getPrimitiveInLayer(row, layer);
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100 | if (layer != null && primitive != null) {
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101 | layer.data.setSelected(primitive);
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102 | AutoScaleAction.autoScale("selection");
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103 | }
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104 | }
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105 |
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106 | protected final void updateEnabledState() {
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107 | if (Main.main == null || MainApplication.getLayerManager().getEditLayer() != this.table.getLayer()) {
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108 | setEnabled(false);
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109 | putValue(SHORT_DESCRIPTION, descriptionInactiveLayer);
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110 | return;
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111 | }
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112 | if (this.table.getSelectedRowCount() == 0) {
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113 | setEnabled(false);
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114 | putValue(SHORT_DESCRIPTION, descriptionNoSelection);
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115 | return;
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116 | }
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117 | setEnabled(true);
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118 | putValue(SHORT_DESCRIPTION, descriptionNominal);
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119 | }
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120 |
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121 | @Override
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122 | public void valueChanged(ListSelectionEvent e) {
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123 | updateEnabledState();
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124 | }
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125 |
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126 | @Override
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127 | public void activeOrEditLayerChanged(ActiveLayerChangeEvent e) {
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128 | updateEnabledState();
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129 | }
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130 |
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131 | @Override
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132 | public void layerAdded(LayerAddEvent e) {
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133 | updateEnabledState();
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134 | }
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135 |
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136 | @Override
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137 | public void layerRemoving(LayerRemoveEvent e) {
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138 | updateEnabledState();
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139 | }
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140 |
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141 | @Override
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142 | public void layerOrderChanged(LayerOrderChangeEvent e) {
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143 | // Do nothing
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144 | }
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145 | }
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