1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.gui.history;
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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.Color;
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7 | import java.awt.Component;
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8 |
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9 | import javax.swing.ImageIcon;
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10 | import javax.swing.JLabel;
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11 | import javax.swing.JTable;
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12 | import javax.swing.table.TableCellRenderer;
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13 |
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14 | import org.openstreetmap.josm.gui.history.TwoColumnDiff.Item.DiffItemType;
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15 | import org.openstreetmap.josm.gui.util.GuiHelper;
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16 | import org.openstreetmap.josm.tools.ImageProvider;
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17 |
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18 | /**
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19 | * A {@link TableCellRenderer} for the {@link NodeListViewer}.
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20 | *
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21 | * Renders information about a node when comparing the node list of two
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22 | * historical versions of a way.
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23 | */
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24 | public class NodeListTableCellRenderer extends JLabel implements TableCellRenderer {
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25 |
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26 | /** Color of selected background */
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27 | public static final Color BGCOLOR_SELECTED = new Color(143, 170, 255);
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28 |
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29 | private final ImageIcon nodeIcon;
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30 |
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31 | /**
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32 | * Constructs a new {@code NodeListTableCellRenderer}.
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33 | */
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34 | public NodeListTableCellRenderer() {
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35 | setOpaque(true);
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36 | nodeIcon = ImageProvider.get("data", "node");
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37 | setIcon(nodeIcon);
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38 | }
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39 |
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40 | protected void renderIndex(DiffTableModel model, int row) {
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41 | int rowNumber = model.getRowNumber(row);
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42 | setText(rowNumber > 0 ? Integer.toString(rowNumber) : "");
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43 | setToolTipText(null);
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44 | setHorizontalAlignment(CENTER);
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45 | setIcon(null);
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46 | }
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47 |
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48 | protected void renderNode(TwoColumnDiff.Item item) {
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49 | String text = "";
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50 | setIcon(nodeIcon);
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51 | if (item.value != null) {
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52 | text = tr("Node {0}", item.value.toString());
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53 | }
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54 | if (item.state == DiffItemType.EMPTY) {
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55 | text = "";
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56 | setIcon(null);
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57 | }
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58 | setText(text);
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59 | setHorizontalAlignment(LEFT);
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60 | }
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61 |
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62 | // Warning: The model pads with null-rows to match the size of the opposite table. 'value' could be null
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63 | @Override
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64 | public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus,
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65 | int row, int column) {
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66 | if (value == null) return this;
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67 | TwoColumnDiff.Item item = (TwoColumnDiff.Item) value;
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68 | GuiHelper.setBackgroundReadable(this, item.state.getColor(isSelected, hasFocus));
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69 | if (column == NodeListTableColumnModel.INDEX_COLUMN) {
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70 | renderIndex((DiffTableModel) table.getModel(), row);
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71 | } else if (column == NodeListTableColumnModel.NODE_COLUMN) {
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72 | renderNode(item);
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73 | }
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74 | return this;
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75 | }
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76 | }
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