1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.gui.tagging.presets.items;
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3 |
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4 | import java.awt.Dimension;
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5 | import java.util.List;
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6 |
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7 | import javax.swing.JPanel;
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8 | import javax.swing.JScrollPane;
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9 | import javax.swing.ListCellRenderer;
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10 |
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11 | import org.openstreetmap.josm.data.osm.Tag;
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12 | import org.openstreetmap.josm.tools.GBC;
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13 |
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14 | /**
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15 | * Multi-select list type.
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16 | */
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17 | public class MultiSelect extends ComboMultiSelect {
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18 |
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19 | /**
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20 | * Number of rows to display (positive integer, optional).
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21 | */
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22 | public short rows; // NOSONAR
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23 |
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24 | protected ConcatenatingJList list;
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25 |
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26 | @Override
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27 | protected void addToPanelAnchor(JPanel p, String def, boolean presetInitiallyMatches) {
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28 | list = new ConcatenatingJList(delimiter, presetListEntries.toArray(new PresetListEntry[0]));
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29 | component = list;
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30 | ListCellRenderer<PresetListEntry> renderer = getListCellRenderer();
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31 | list.setCellRenderer(renderer);
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32 |
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33 | if (usage.hasUniqueValue() && !usage.unused()) {
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34 | originalValue = usage.getFirst();
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35 | list.setSelectedItem(originalValue);
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36 | } else if ((def != null && !usage.hadKeys()) || PROP_FILL_DEFAULT.get() || isForceUseLastAsDefault()) {
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37 | originalValue = DIFFERENT;
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38 | list.setSelectedItem(def);
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39 | } else if (usage.unused()) {
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40 | originalValue = null;
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41 | list.setSelectedItem(originalValue);
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42 | } else {
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43 | originalValue = DIFFERENT;
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44 | list.setSelectedItem(originalValue);
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45 | }
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46 |
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47 | JScrollPane sp = new JScrollPane(list);
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48 | // if a number of rows has been specified in the preset,
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49 | // modify preferred height of scroll pane to match that row count.
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50 | if (rows > 0) {
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51 | double height = renderer.getListCellRendererComponent(list,
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52 | new PresetListEntry("x"), 0, false, false).getPreferredSize().getHeight() * rows;
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53 | sp.setPreferredSize(new Dimension((int) sp.getPreferredSize().getWidth(), (int) height));
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54 | }
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55 | p.add(sp, GBC.eol().fill(GBC.HORIZONTAL));
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56 | }
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57 |
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58 | @Override
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59 | protected Object getSelectedItem() {
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60 | return list.getSelectedItem();
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61 | }
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62 |
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63 | @Override
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64 | public void addCommands(List<Tag> changedTags) {
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65 | // Do not create any commands if list has been disabled because of an unknown value (fix #8605)
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66 | if (list.isEnabled()) {
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67 | super.addCommands(changedTags);
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68 | }
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69 | }
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70 | }
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