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 java.awt.*;
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40 | import java.awt.event.*;
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41 | import javax.swing.*;
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42 | import javax.swing.event.*;
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43 | import java.util.ArrayList;
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44 | import java.util.Collection;
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45 | import java.util.Vector;
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46 | import java.util.HashMap;
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47 |
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48 |
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49 | import org.greenstone.gatherer.Configuration;
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50 | import org.greenstone.gatherer.Dictionary;
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51 | import org.greenstone.gatherer.gui.ModalDialog;
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52 | import org.greenstone.gatherer.gui.GLIButton;
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53 |
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54 | public class DeleteMetadataSetPrompt
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55 | extends ModalDialog {
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56 |
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57 | static private Dimension SIZE = new Dimension(500, 500);
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58 |
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59 | private ArrayList available_metadata_sets;
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60 | private ArrayList listeners;
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61 |
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62 | private JCheckBox confirmation = null;
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63 | private JButton delete_button = null;
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64 | private JButton close_button = null;
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65 | private JList available_set_list = null;
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66 | /** The model behind the list. */
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67 | private DefaultListModel list_model = null;
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68 | private JTextArea description_textarea = null;
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69 | private DeleteMetadataSetPrompt self;
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70 | private MetadataSetManager meta_manager;
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71 |
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72 | public DeleteMetadataSetPrompt(Frame parent,MetadataSetManager msm) {
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73 | super(parent, true);
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74 |
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75 | self = this;
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76 | meta_manager = msm;
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77 | listeners = new ArrayList();
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78 |
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79 | setSize(SIZE);
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80 | setTitle(Dictionary.get("GEMS.DeleteMetadataSetPrompt.Title"));
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81 |
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82 | JPanel content_pane = (JPanel) getContentPane();
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83 | content_pane.setOpaque(true);
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84 |
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85 |
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86 | JLabel available_metadata_sets_label = new JLabel(Dictionary.get("GEMS.DeleteMetadataSetPrompt.Available_Sets"));
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87 | available_metadata_sets_label.setOpaque(true);
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88 |
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89 | list_model = new DefaultListModel();
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90 |
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91 | available_set_list = new JList();
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92 | available_set_list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
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93 | available_set_list.setModel(list_model);
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94 | available_set_list.setCellRenderer(new MetadatSetListCellRenderer());
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95 | available_set_list.setFixedCellHeight(20);
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96 | available_set_list.addListSelectionListener(new MetadataSetListSelectionListener());
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97 |
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98 | JPanel set_pane = new JPanel();
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99 | set_pane.setLayout(new BorderLayout());
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100 | set_pane.add(available_metadata_sets_label,BorderLayout.NORTH);
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101 | set_pane.add(new JScrollPane(available_set_list),BorderLayout.CENTER);
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102 |
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103 |
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104 | JLabel metadata_set_des_label = new JLabel(Dictionary.get("GEMS.Set_Description"));
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105 | metadata_set_des_label.setOpaque(true);
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106 |
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107 | description_textarea = new JTextArea();
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108 | description_textarea.setOpaque(true);
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109 | description_textarea.setEditable(false);
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110 | description_textarea.setLineWrap(true);
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111 | description_textarea.setWrapStyleWord(true);
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112 |
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113 | JPanel des_pane = new JPanel();
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114 | des_pane.setLayout(new BorderLayout());
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115 | des_pane.add(metadata_set_des_label,BorderLayout.NORTH);
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116 | des_pane.add(new JScrollPane(description_textarea),BorderLayout.CENTER);
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117 |
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118 | JPanel button_pane = new JPanel();
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119 | delete_button = new GLIButton(Dictionary.get("GEMS.DeleteMetadataSetPrompt.Delete"), Dictionary.get("GEMS.DeleteMetadataSetPrompt.Delete_Tooltip"));
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120 | delete_button.setEnabled(false);
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121 |
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122 |
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123 | confirmation = new JCheckBox(Dictionary.get("GEMS.DeleteMetadataSetPrompt.Confirm_Delete"));
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124 | confirmation.setEnabled(false);
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125 | confirmation.setSelected(false);
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126 |
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127 | close_button = new GLIButton(Dictionary.get("General.Close"), Dictionary.get("General.Close_Tooltip"));
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128 | close_button.setEnabled(true);
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129 |
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130 | confirmation.addActionListener(new ActionListener() {
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131 | public void actionPerformed(ActionEvent event) {
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132 | delete_button.setEnabled(confirmation.isSelected());
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133 | //confirmation.setEnabled(false);
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134 | //confirmation.setSelected(false);
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135 | }
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136 | });
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137 |
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138 | // Add listeners
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139 | delete_button.addActionListener(new DeleteButtonListener());
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140 |
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141 | close_button.addActionListener(new ActionListener() {
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142 | public void actionPerformed(ActionEvent event) {
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143 | self.dispose();
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144 | }
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145 | });
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146 |
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147 |
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148 | button_pane.setLayout(new GridLayout(1,2));
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149 | button_pane.add(delete_button);
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150 | button_pane.add(close_button);
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151 |
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152 | JPanel bottom_pane = new JPanel();
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153 | bottom_pane.setLayout(new BorderLayout());
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154 | bottom_pane.add(confirmation,BorderLayout.NORTH);
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155 | bottom_pane.add(button_pane, BorderLayout.CENTER);
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156 |
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157 |
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158 | content_pane.setLayout(new BorderLayout());
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159 | content_pane.add(set_pane, BorderLayout.NORTH);
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160 | content_pane.add(des_pane, BorderLayout.CENTER);
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161 | content_pane.add(bottom_pane, BorderLayout.SOUTH);
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162 |
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163 | // Show
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164 | Dimension screen_size = Configuration.screen_size;
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165 | setLocation((screen_size.width - SIZE.width) / 2, (screen_size.height - SIZE.height) / 2);
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166 | setVisible(false);
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167 | }
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168 |
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169 |
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170 | public void display() {
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171 | available_metadata_sets = meta_manager.getAvailableMetadataSets();
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172 | for (int i=0; i<available_metadata_sets.size(); i++) {
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173 | list_model.addElement(available_metadata_sets.get(i));
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174 | }
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175 | //available_set_list.setListData(new Vector((Collection)available_metadata_sets));
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176 | delete_button.setEnabled(false);
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177 | confirmation.setEnabled(false);
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178 | confirmation.setSelected(false);
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179 | setVisible(true);
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180 |
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181 | }
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182 |
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183 |
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184 | /** The Delete button listener implementation. */
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185 | private class DeleteButtonListener
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186 | implements ActionListener {
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187 | /** Any implementation of ActionListener must include this method so we can be informed when the button is actioned.
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188 | * @param event An <strong>ActionEvent</strong> containing all the relevant information garnered from the event itself.
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189 | * @see org.greenstone.gatherer.Configuration
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190 | * @see org.greenstone.gatherer.Gatherer
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191 | * @see org.greenstone.gatherer.util.Utility
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192 | */
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193 | public void actionPerformed(ActionEvent event) {
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194 | // Delete the selected MetadataSet.
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195 | Object selectedValue = available_set_list.getSelectedValue();
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196 |
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197 | if (selectedValue !=null && (selectedValue instanceof MetadataSetInfo)){
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198 | ((MetadataSetInfo)selectedValue).deleteMetadataSet();
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199 | list_model.removeElement(selectedValue);
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200 | }
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201 | delete_button.setEnabled(false);
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202 | confirmation.setEnabled(false);
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203 | confirmation.setSelected(false);
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204 | description_textarea.setText(Dictionary.get("GEMS.DeleteMetadataSetPrompt.No_Set"));
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205 | //self.dispose();
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206 | }
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207 |
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208 | }
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209 |
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210 |
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211 | private class MetadatSetListCellRenderer extends JLabel implements ListCellRenderer {
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212 | public MetadatSetListCellRenderer() {
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213 | setOpaque(true);
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214 | }
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215 |
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216 | public Component getListCellRendererComponent(JList list,
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217 | Object value,
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218 | int index,
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219 | boolean isSelected,
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220 | boolean cellHasFocus)
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221 | {
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222 | String name= "unknown";
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223 |
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224 | if (value instanceof MetadataSetInfo){
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225 | MetadataSetInfo meta_info = (MetadataSetInfo) value;
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226 | name = meta_info.getMetadataSetName();
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227 | }
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228 |
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229 | setText(name);
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230 | if (isSelected) {
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231 | setBackground(list.getSelectionBackground());
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232 | setForeground(list.getSelectionForeground());
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233 | }
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234 | else {
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235 | setBackground(list.getBackground());
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236 | setForeground(list.getForeground());
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237 | }
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238 |
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239 | return this;
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240 | }
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241 | }
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242 |
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243 |
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244 | private class MetadataSetListSelectionListener implements ListSelectionListener {
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245 | public void valueChanged(ListSelectionEvent lse){
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246 | if (lse.getValueIsAdjusting()) return;
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247 |
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248 | delete_button.setEnabled(false);
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249 |
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250 | Object selectedValue = available_set_list.getSelectedValue();
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251 |
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252 | if (selectedValue !=null && (selectedValue instanceof MetadataSetInfo)){
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253 | MetadataSetInfo meta_info = (MetadataSetInfo)selectedValue;
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254 | description_textarea.setText(meta_info.getMetadataSetDescription());
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255 | confirmation.setEnabled(true);
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256 | confirmation.setSelected(false);
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257 | }
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258 | else {
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259 | confirmation.setEnabled(false);
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260 | description_textarea.setText(Dictionary.get("GEMS.DeleteMetadataSetPrompt.No_Set"));
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261 | }
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262 |
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263 | }
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264 | }
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265 |
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266 |
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267 |
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268 | public void addMetadataSetListener(MetadataSetListener msl){
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269 | listeners.add(msl);
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270 | }
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271 |
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272 |
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273 | }
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