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.gui.help.HelpUtil.ht;
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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.awt.event.ActionEvent;
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8 | import java.awt.event.KeyEvent;
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9 | import java.util.Collections;
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10 |
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11 | import org.openstreetmap.josm.gui.io.SaveLayersDialog;
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12 | import org.openstreetmap.josm.gui.layer.Layer;
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13 | import org.openstreetmap.josm.tools.Shortcut;
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14 |
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15 | /**
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16 | * Deletes the active layer.
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17 | */
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18 | public final class DeleteLayerAction extends JosmAction {
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19 |
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20 | /**
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21 | * Constructs a {@link DeleteLayerAction} which will delete the active layer.
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22 | */
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23 | public DeleteLayerAction() {
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24 | super(tr("Delete Layer"), "dialogs/delete", tr("Delete the active layer. Does not delete the associated file."),
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25 | Shortcut.registerShortcut("system:deletelayer", tr("File: {0}", tr("Delete Layer")), KeyEvent.VK_F4, Shortcut.CTRL),
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26 | true, "delete-layer", true);
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27 | putValue("help", ht("/Action/DeleteLayer"));
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28 | }
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29 |
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30 | @Override
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31 | public void actionPerformed(ActionEvent e) {
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32 | Layer activeLayer = getLayerManager().getActiveLayer();
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33 | if (activeLayer == null) {
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34 | return;
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35 | }
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36 | if (!SaveLayersDialog.saveUnsavedModifications(Collections.singletonList(activeLayer), SaveLayersDialog.Reason.DELETE)) {
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37 | return;
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38 | }
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39 | getLayerManager().removeLayer(activeLayer);
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40 | }
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41 |
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42 | @Override
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43 | protected void updateEnabledState() {
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44 | setEnabled(getLayerManager().getActiveLayer() != null);
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45 | }
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46 | }
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