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.ArrayList;
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10 | import java.util.List;
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11 |
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12 | import javax.swing.ButtonModel;
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13 |
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14 | import org.openstreetmap.josm.Main;
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15 | import org.openstreetmap.josm.tools.Shortcut;
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16 |
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17 | public class ViewportFollowToggleAction extends JosmAction {
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18 | private final List<ButtonModel> buttonModels = new ArrayList<ButtonModel>();
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19 | private boolean selected;
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20 | public ViewportFollowToggleAction() {
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21 | super(
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22 | tr("Viewport Following"),
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23 | "viewport-follow",
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24 | tr("Enable/disable automatic moving of the map view to last placed node"),
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25 | Shortcut.registerShortcut("menu:view:viewportfollow", tr("Toggle Viewport Following"),
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26 | KeyEvent.VK_F, Shortcut.CTRL_SHIFT),
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27 | true /* register shortcut */
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28 | );
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29 | putValue("help", ht("/Action/ViewportFollowing"));
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30 | selected = false;
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31 | notifySelectedState();
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32 | }
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33 |
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34 | public void addButtonModel(ButtonModel model) {
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35 | if (model != null && !buttonModels.contains(model)) {
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36 | buttonModels.add(model);
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37 | model.setSelected(selected);
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38 | }
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39 | }
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40 |
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41 | public void removeButtonModel(ButtonModel model) {
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42 | if (model != null && buttonModels.contains(model)) {
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43 | buttonModels.remove(model);
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44 | }
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45 | }
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46 |
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47 | protected void notifySelectedState() {
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48 | for (ButtonModel model: buttonModels) {
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49 | if (model.isSelected() != selected) {
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50 | model.setSelected(selected);
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51 | }
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52 | }
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53 | }
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54 |
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55 | protected void toggleSelectedState() {
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56 | selected = !selected;
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57 | Main.map.mapView.viewportFollowing = selected;
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58 | notifySelectedState();
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59 | }
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60 | public void actionPerformed(ActionEvent e) {
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61 | toggleSelectedState();
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62 | }
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63 |
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64 | @Override
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65 | protected void updateEnabledState() {
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66 | setEnabled(Main.map != null && Main.main.getEditLayer() != null);
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67 | }
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68 | }
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