[12658] | 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: Shaoqun Wu, 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) 2006 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.gems;
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| 38 |
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| 39 | import javax.swing.table.*;
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| 40 | import javax.swing.JTable;
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| 41 | import java.awt.event.ActionListener;
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| 42 | import java.awt.event.ActionEvent;
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| 43 | import java.util.ArrayList;
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| 44 | import java.awt.Rectangle;
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| 45 | import javax.swing.JOptionPane;
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| 46 | import javax.swing.DefaultCellEditor;
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| 47 | import javax.swing.JTextField;
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| 48 | import javax.swing.ListSelectionModel;
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| 49 |
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| 50 | import org.greenstone.gatherer.Dictionary;
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| 51 |
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| 52 | public class AttributeTable
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| 53 | extends JTable
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| 54 | implements MetadataElementListener, MetadataSetListener, ActionListener {
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| 55 |
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| 56 | // self reference
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| 57 | JTable this_table;
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| 58 |
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| 59 | private ArrayList listeners = new ArrayList();
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| 60 | private JTextField metadata_value_text_field = new JTextField();
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| 61 | private boolean language_dependent;
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| 62 |
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| 63 | public AttributeTable(boolean lang_dependent){
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| 64 | super();
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| 65 | setRowHeight(20);
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[18412] | 66 | this.setComponentOrientation(Dictionary.getOrientation());
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| 67 | metadata_value_text_field.setComponentOrientation(Dictionary.getOrientation());
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[12658] | 68 | language_dependent = lang_dependent;
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| 69 |
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| 70 | metadata_value_text_field.setBorder(null);
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| 71 | DefaultCellEditor cellEditor = new DefaultCellEditor(metadata_value_text_field);
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| 72 | cellEditor.setClickCountToStart(1);
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| 73 | setDefaultEditor(String.class,cellEditor);
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| 74 | this_table = this;
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| 75 | setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
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| 76 | }
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| 77 |
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| 78 | /* not currently used */
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| 79 | public void actionPerformed(ActionEvent e){
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| 80 | String command = e.getActionCommand();
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| 81 |
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| 82 | if (command.equals(GEMSConstants.ADD_ATTRIBUTE)){
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| 83 | addAttribute();
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| 84 | return ;
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| 85 | }
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| 86 |
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| 87 | if (command.equals(GEMSConstants.DELETE_ATTRIBUTE)){
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| 88 | deleteAttribute();
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| 89 | }
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| 90 |
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| 91 | }
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| 92 |
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| 93 | public void addNewLanguage(String lang) {
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| 94 | AttributeTableModel model = (AttributeTableModel)getModel();
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| 95 | model.addNewLanguage(lang);
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| 96 | }
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| 97 |
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| 98 | public void metadataElementChanged(MetadataElementEvent mee){
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| 99 | MetadataElementModel model = mee.getMetadataElementModel();
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| 100 | if (model == null){ //this model has been deleted
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| 101 | setModel(new DefaultTableModel());
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| 102 | return;
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| 103 | }
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| 104 | populateAttributeTable(model);
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| 105 | }
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| 106 |
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| 107 | public void metadataSetChanged(MetadataSetEvent mse){
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| 108 | MetadataSetInfo info = mse.getMetadataSetInfo();
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| 109 | if (info == null){
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| 110 | setModel(new DefaultTableModel());
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| 111 | return;
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| 112 | }
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| 113 | populateAttributeTable(info);
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| 114 | }
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| 115 |
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| 116 | public void addAttributeListener(AttributeListener al){
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| 117 | if (!listeners.contains(al)){
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| 118 | listeners.add(al);
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| 119 | }
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| 120 | }
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| 121 |
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| 122 | public void removeAttributeListener(AttributeListener al){
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| 123 | listeners.remove(al);
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| 124 | }
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| 125 |
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| 126 | private void addAttribute(){
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| 127 | AttributeTableModel model = (AttributeTableModel)getModel();
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| 128 | model.addNewRow();
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| 129 | }
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| 130 |
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| 131 |
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| 132 | private void deleteAttribute(){
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| 133 | int index = getSelectedRow();
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| 134 | AttributeTableModel model = (AttributeTableModel)getModel();
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| 135 | model.deleteRow(index);
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| 136 | }
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| 137 |
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| 138 | private void populateAttributeTable(AttributeContainer container){
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| 139 | AttributeTableModel model = new AttributeTableModel(container, language_dependent);
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| 140 | setModel(model);
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| 141 | TableColumnModel tcm = getColumnModel();
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| 142 | if (language_dependent) {
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| 143 | tcm.getColumn(0).setPreferredWidth(100);
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| 144 | tcm.getColumn(1).setPreferredWidth(50);
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| 145 | tcm.getColumn(2).setPreferredWidth(350);
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| 146 | }
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| 147 | else {
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| 148 | tcm.getColumn(0).setPreferredWidth(100);
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| 149 | tcm.getColumn(1).setPreferredWidth(400);
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| 150 | }
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| 151 | }
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| 152 |
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| 153 |
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| 154 |
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| 155 | private void notifyListeners(Attribute attr){
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| 156 | AttributeEvent ae = new AttributeEvent(attr);
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| 157 | for(int i=0;i<listeners.size();i++){
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| 158 | AttributeListener al = (AttributeListener) listeners.get(i);
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| 159 | al.attributeChanged(ae);
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| 160 |
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| 161 | }
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| 162 | }
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| 163 |
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| 164 |
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| 165 |
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| 166 | protected class AttributeTableModel extends AbstractTableModel {
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| 167 |
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| 168 | AttributeContainer attribute_container;
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| 169 | ArrayList attributes;
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| 170 | boolean language_dependent;
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| 171 |
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| 172 | String[] column_names;
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| 173 |
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| 174 | public AttributeTableModel(AttributeContainer container, boolean lang_dependent) {
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| 175 | attribute_container = container;
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| 176 | language_dependent = lang_dependent;
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| 177 | if (language_dependent) {
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| 178 | attributes = container.getLanguageDependentAttributes();
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| 179 | column_names = GEMSConstants.LANG_DEPENDENT_ATTRIBUTES_COLUMN_NAMES;
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| 180 | }
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| 181 | else {
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| 182 | attributes = container.getAttributes();
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| 183 | column_names = GEMSConstants.ATTRIBUTES_COLUMN_NAMES;
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| 184 | }
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| 185 | }
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| 186 |
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| 187 | public int getRowCount(){
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| 188 | return attributes.size();
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| 189 | }
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| 190 |
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| 191 | public String getColumnName(int column){
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| 192 | return column_names[column];
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| 193 | }
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| 194 |
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| 195 | public Class getColumnClass(int columnIndex){
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| 196 | return String.class;
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| 197 | }
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| 198 | public int getColumnCount(){
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| 199 | return column_names.length;
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| 200 | }
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| 201 | public boolean isCellEditable(int row, int col) {
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| 202 | Attribute attr = (Attribute)attributes.get(row);
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| 203 | if (col == 0 && attr.isRequired()) return false;
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| 204 | return true;
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| 205 | }
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| 206 |
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| 207 | public Object getValueAt(int row, int column){
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| 208 | if (row < attributes.size()){
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| 209 | Attribute attr = (Attribute)attributes.get(row);
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| 210 | // String name = attr.getName();
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| 211 | // if (attr.isRequired()){
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| 212 | // name = "<html><body Color=blue>"+name+"</body></html>";
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| 213 | // }
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| 214 |
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| 215 | if (column == 0) return attr.getName();
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| 216 | if (language_dependent) {
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| 217 | if (column == 1) return attr.getLanguage();
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| 218 | if (column == 2) return attr.getValue();
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| 219 | }
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| 220 | else {
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| 221 | if (column == 1) return attr.getValue();
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| 222 | }
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| 223 | }
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| 224 | return null;
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| 225 | }
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| 226 |
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| 227 | public void setValueAt(Object value, int row, int column){
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| 228 | if (row < attributes.size() && attributes.size()>0 ){
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| 229 | Attribute attr = (Attribute)attributes.get(row);
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| 230 | if (attr.isRequired() && ((String)value).trim().equals("") && !getValueAt(row,column).equals("")) {
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| 231 | JOptionPane.showMessageDialog(null,Dictionary.get("GEMS.Attribute_Edition_Error_Message"), Dictionary.get("GEMS.Attribute_Edition_Error"),JOptionPane.ERROR_MESSAGE);
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| 232 | return;
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| 233 | }
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| 234 |
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| 235 | // TODO: check namespace conflict
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| 236 | if (column == 0) attr.setName((String)value);
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| 237 | else {
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| 238 | if (language_dependent) {
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| 239 | if (column == 1) attr.setLanguage((String)value);
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| 240 | else if (column == 2) attr.setValue((String)value);
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| 241 | }
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| 242 | else {
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| 243 | if (column == 1) attr.setValue((String)value);
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| 244 | }
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| 245 | }
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| 246 | notifyListeners(attr);
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| 247 |
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| 248 | /// check this stuff
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| 249 | if (attribute_container instanceof MetadataElementModel) {
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| 250 | if (attr.getName().trim().equals(GEMSConstants.NAME_ATTRIBUTE)) {
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| 251 | ((MetadataElementModel)attribute_container).setName((String)value);
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| 252 | }
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| 253 | } else if (attribute_container instanceof MetadataSetInfo) {
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| 254 | ((MetadataSetInfo)attribute_container).infoChanged();
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| 255 | }
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| 256 | }
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| 257 | }
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| 258 |
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| 259 | /** used only for language dependent attribute tables */
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| 260 | public void addNewLanguage(String lang)
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| 261 | {
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| 262 | if (!language_dependent) return;
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| 263 | int index = attribute_container.languageExists(lang);
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| 264 | if (index >=0){
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| 265 | this_table.getSelectionModel().setSelectionInterval(index,index);
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| 266 | Rectangle rect = this_table.getCellRect(index, 0, true);
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| 267 | this_table.scrollRectToVisible(rect);
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| 268 | }
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| 269 | else {
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| 270 | String [] attrNames = attribute_container.getLanguageDependentAttributeNames();
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| 271 | if (attrNames == null){
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| 272 | JOptionPane.showMessageDialog(null,Dictionary.get("GEMS.Add_Lang_Depend_Attr_Error_Message"),Dictionary.get("GEMS.Add_Lang_Depend_Attr_Error"),JOptionPane.ERROR_MESSAGE);
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| 273 | return ;
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| 274 | }
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| 275 | for(int i=0;i<attrNames.length;i++){
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| 276 | Attribute attr = new Attribute(attrNames[i].trim(),"", true);
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| 277 | attr.setLanguage(lang);
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| 278 | attributes.add(attr);
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| 279 | notifyListeners(attr);
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| 280 | }
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| 281 | fireTableDataChanged();
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| 282 | // first att from new lot
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| 283 | int first_new_att_index = attributes.size()-attrNames.length;
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| 284 | this_table.editCellAt(first_new_att_index, 2);
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| 285 | if (this_table.isEditing()) {
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| 286 | this_table.getEditorComponent().requestFocus();
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| 287 | }
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| 288 |
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| 289 | this_table.getSelectionModel().setSelectionInterval(attributes.size()-attrNames.length,attributes.size()-1);
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| 290 | Rectangle rect = this_table.getCellRect(attributes.size()-1, 0, true);
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| 291 | this_table.scrollRectToVisible(rect);
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| 292 | }
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| 293 | }
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| 294 |
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| 295 | /* not currently used */
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| 296 | public void addNewRow(){
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| 297 | Attribute attr = new Attribute();
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| 298 | attributes.add(attr);
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| 299 | fireTableDataChanged();
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| 300 | this_table.getSelectionModel().setSelectionInterval(attributes.size()-1,attributes.size()-1);
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| 301 | Rectangle rect = this_table.getCellRect(attributes.size()-1, 0, true);
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| 302 | this_table.scrollRectToVisible(rect);
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| 303 | }
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| 304 |
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| 305 | /* not currently used */
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| 306 | public void deleteRow(int index){
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| 307 | if (index < attributes.size() && index >=0){
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| 308 | Attribute attr = (Attribute)attributes.get(index);
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| 309 | if (attr.isRequired()){
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| 310 | JOptionPane.showMessageDialog(null,Dictionary.get("GEMS.Attribute_Deletion_Error_Message"), Dictionary.get("GEMS.Attribute_Deletion_Error"),JOptionPane.ERROR_MESSAGE);
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| 311 | return;
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| 312 | }
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| 313 |
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| 314 | // int result = JOptionPane.showOptionDialog(null, Dictionary.get("GEMS.Confirm_Removal", Dictionary.get("GEMS.Attribute") + " " + Dictionary.get("GEMS.Cannot_Undo")), Dictionary.get("GEMS.Confirm_Removal_Title"), JOptionPane.DEFAULT_OPTION, JOptionPane.QUESTION_MESSAGE,null,GEMSConstants.DIALOG_OPTIONS,GEMSConstants.DIALOG_OPTIONS[0] );
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| 315 |
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| 316 | //if (result !=JOptionPane.OK_OPTION) return;
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| 317 | notifyListeners(attr);
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| 318 | attributes.remove(index);
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| 319 | fireTableDataChanged();
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| 320 | }
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| 321 |
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| 322 | }
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| 323 |
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| 324 | }
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| 325 | }
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