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 | import java.util.List;
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8 | import java.util.stream.Collectors;
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9 | import java.util.stream.Stream;
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10 |
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11 | import org.openstreetmap.josm.gui.layer.ImageryLayer;
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12 | import org.openstreetmap.josm.tools.KeyboardUtils;
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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 | * Reorders all non-overlay imagery layers in a cyclic manner.
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17 | * @since 13891
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18 | */
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19 | public class ReorderImageryLayersAction extends JosmAction {
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20 |
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21 | /**
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22 | * Constructs a new {@code ReorderImageryLayersAction}.
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23 | */
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24 | public ReorderImageryLayersAction() {
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25 | // TODO: find a suitable icon
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26 | super(tr("Reorder imagery layers"), "dialogs/layerlist", tr("Reorders non-overlay imagery layers."),
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27 | Shortcut.registerMultiShortcuts("imagery:reorder", tr("Reorder imagery layers"),
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28 | KeyboardUtils.getCharactersForKey('E', 0), Shortcut.DIRECT));
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29 | }
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30 |
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31 | @Override
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32 | public void actionPerformed(ActionEvent e) {
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33 | List<ImageryLayer> layers = getNonOverlayImageryLayers().collect(Collectors.toList());
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34 | int size = layers.size();
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35 | if (size > 1) {
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36 | // Move the first non-overlay layer at the position of the last non-overlay layer
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37 | getLayerManager().moveLayer(layers.get(0),
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38 | getLayerManager().getLayers().indexOf(layers.get(size - 1)));
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39 | }
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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(getNonOverlayImageryLayers().count() > 1);
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45 | }
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46 |
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47 | private Stream<ImageryLayer> getNonOverlayImageryLayers() {
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48 | return getLayerManager().getLayersOfType(ImageryLayer.class).stream()
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49 | .filter(l -> !l.getInfo().isOverlay());
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50 | }
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51 | }
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