1 | /**
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2 | *#########################################################################
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3 | *
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4 | * A component of the Gatherer application, part of the Greenstone digital
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5 | * library suite from the New Zealand Digital Library Project at the
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6 | * University of Waikato, New Zealand.
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7 | *
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8 | * <BR><BR>
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9 | *
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10 | * Author: John Thompson, Greenstone Digital Library, University of Waikato
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11 | *
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12 | * <BR><BR>
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13 | *
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14 | * Copyright (C) 1999 New Zealand Digital Library Project
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15 | *
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16 | * <BR><BR>
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17 | *
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18 | * This program is free software; you can redistribute it and/or modify
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19 | * it under the terms of the GNU General Public License as published by
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20 | * the Free Software Foundation; either version 2 of the License, or
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21 | * (at your option) any later version.
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22 | *
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23 | * <BR><BR>
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24 | *
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25 | * This program is distributed in the hope that it will be useful,
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26 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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27 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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28 | * GNU General Public License for more details.
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29 | *
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30 | * <BR><BR>
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31 | *
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32 | * You should have received a copy of the GNU General Public License
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33 | * along with this program; if not, write to the Free Software
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34 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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35 | *########################################################################
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36 | */
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37 | package org.greenstone.gatherer.gui.metaaudit;
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38 |
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39 | import java.awt.*;
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40 | import javax.swing.*;
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41 | import javax.swing.table.TableCellRenderer;
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42 | import org.greenstone.gatherer.Dictionary;
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43 | import org.greenstone.gatherer.util.JarTools;
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44 |
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45 | /** This custom button renderer replaces the boring old column headers with clickable versions which are based on JToggleButtons.
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46 | * @author John Thompson, Greenstone Digital Library, University of Waikato
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47 | * @version 2.3
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48 | */
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49 | public class HeaderRenderer
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50 | extends JToggleButton
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51 | implements TableCellRenderer {
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52 |
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53 | /** The constructor sets up a margin around the button, and adds the filter icons.
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54 | */
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55 | public HeaderRenderer() {
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56 | setMargin(new Insets(0,0,0,0));
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57 | setIcon(JarTools.getImage("filter.gif"));
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58 | setSelectedIcon(JarTools.getImage("filter-on.gif"));
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59 | }
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60 |
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61 | /** Called to create the component to be used as the 'rubber-stamp' for the table cell given the follwing arguments.
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62 | * @param table The <strong>JTable</strong> that is asking the renderer to draw; can be <i>null</i>.
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63 | * @param value The value of the cell to be rendered as an <strong>Object</strong>. It is up to the specific renderer to interpret and draw the value. For example, if value is the string "true", it could be rendered as a string or it could be rendered as a check box that is checked. null is a valid value.
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64 | * @param isSelected <i>true</i> if the cell is to be rendered with the selection highlighted; otherwise <i>false</i>.
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65 | * @param hasFocus If <i>true</i>, render cell appropriately. For example, put a special border on the cell, if the cell can be edited, render in the color used to indicate editing.
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66 | * @param row The row index of the cell being drawn as an <i>int</i>. When drawing the header, the value of row is -1.
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67 | * @param column The column index of the cell being drawn as an <i>int</i>.
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68 | * @see org.greenstone.gatherer.gui.metaaudit.MetaAuditTable
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69 | */
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70 | public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
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71 | setText(value.toString());
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72 | setToolTipText(Dictionary.get("Autofilter.Table_Header_Tooltip", value.toString()));
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73 | MetaAuditTable temp = (MetaAuditTable) table;
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74 | if (temp != null) { // And it may if this is called during table init.
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75 | setSelected(temp.isFiltered(column));
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76 | }
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77 | return this;
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78 | }
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79 | }
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