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1 /*
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2 * Copyright 2002 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 package sun.jvm.hotspot.ui.table;
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26
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27 import java.awt.Component;
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28
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29 import javax.swing.*;
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30 import javax.swing.table.*;
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31
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32 /**
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33 * A cell renderer for the JTableHeader which understands the sorted
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34 * column state and renders arrow buttons to indicated the sorted column
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35 * and order
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36 */
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37 public class SortHeaderCellRenderer extends DefaultTableCellRenderer {
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38
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39 private Icon descendingIcon;
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40 private Icon ascendingIcon;
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41
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42 private SortableTableModel model;
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43
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44 public SortHeaderCellRenderer(JTableHeader header, SortableTableModel model) {
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45 this.model = model;
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46
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47 descendingIcon = getIcon("navigation/Down16.gif");
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48 ascendingIcon = getIcon("navigation/Up16.gif");
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49
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50 setForeground(header.getForeground());
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51 setBackground(header.getBackground());
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52 setFont(header.getFont());
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53
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54 setBorder(UIManager.getBorder("TableHeader.cellBorder"));
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55 setHorizontalAlignment(JLabel.CENTER);
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56
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57 }
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58
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59 /**
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60 * Retrieves an Image Icon from the JLF graphics repository.
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61 */
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62 public ImageIcon getIcon(String name) {
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63 String imagePath = "/toolbarButtonGraphics/" + name;
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64 java.net.URL url = this.getClass().getResource(imagePath);
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65 if (url != null) {
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66 return new ImageIcon(url);
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67 }
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68 return null;
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69 }
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70
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71 public Component getTableCellRendererComponent(JTable table, Object value,
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72 boolean isSelected, boolean hasFocus,
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73 int row, int column) {
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74 setText((value == null) ? "" : value.toString());
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75
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76 Icon icon = null;
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77 if (column == model.getColumn()) {
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78 if (model.isAscending()) {
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79 icon = ascendingIcon;
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80 } else {
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81 icon = descendingIcon;
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82 }
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83 }
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84 setIcon(icon);
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85
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86 return this;
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87 }
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88 }
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