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 | * Author: John Thompson, Greenstone Digital Library, University of Waikato
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9 | *
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10 | * Copyright (C) 1999 New Zealand Digital Library Project
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11 | *
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12 | * This program is free software; you can redistribute it and/or modify
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13 | * it under the terms of the GNU General Public License as published by
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14 | * the Free Software Foundation; either version 2 of the License, or
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15 | * (at your option) any later version.
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16 | *
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17 | * This program is distributed in the hope that it will be useful,
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18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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20 | * GNU General Public License for more details.
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21 | *
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22 | * You should have received a copy of the GNU General Public License
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23 | * along with this program; if not, write to the Free Software
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24 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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25 | *########################################################################
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26 | */
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27 | package org.greenstone.gatherer.cdm;
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28 |
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29 |
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30 | import java.awt.*;
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31 | import java.awt.event.*;
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32 | import java.io.*;
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33 | import java.util.*;
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34 | import javax.swing.*;
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35 | import javax.swing.border.*;
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36 | import javax.swing.event.*;
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37 | import org.greenstone.gatherer.Configuration;
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38 | import org.greenstone.gatherer.DebugStream;
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39 | import org.greenstone.gatherer.Dictionary;
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40 | import org.greenstone.gatherer.Gatherer;
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41 | import org.greenstone.gatherer.gui.GLIButton;
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42 | import org.greenstone.gatherer.metadata.MetadataElement;
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43 | import org.greenstone.gatherer.metadata.MetadataSetManager;
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44 | import org.greenstone.gatherer.util.CheckList;
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45 | import org.greenstone.gatherer.util.CheckListEntry;
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46 | import org.greenstone.gatherer.util.JarTools;
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47 | import org.greenstone.gatherer.util.StaticStrings;
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48 | import org.greenstone.gatherer.util.XMLTools;
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49 | import org.w3c.dom.*;
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50 |
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51 | /** This class manages the language commands, remembering both a list of languages to build indexes in, plus the default language.
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52 | * @author John Thompson, Greenstone Digital Library, University of Waikato
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53 | * @version 2.3
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54 | */
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55 | public class LanguageManager
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56 | extends DOMProxyListModel {
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57 |
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58 | static public Document LANGUAGES_DOCUMENT = XMLTools.parseXMLFile("xml/languages.xml", true);
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59 |
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60 | static final private Dimension COMPONENT_SIZE = new Dimension(125,25);
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61 |
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62 | /** The visual controls for this manager. */
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63 | private Control controls = null;
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64 | /** A reference to this class as a model, for the inner controls class. */
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65 | private DOMProxyListModel model = null;
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66 | /** A hashtable of code->name mappings of known languages. */
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67 | private LinkedHashMap known_languages = null;
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68 | /** The default language object. */
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69 | private Language default_language = null;
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70 | /** The language metadata element - specifies which metadata the
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71 | language should be read from to determine the partitons */
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72 | private Element language_metadata = null;
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73 | /** Constructor. */
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74 | public LanguageManager(Element languages_element) {
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75 | super(languages_element, StaticStrings.LANGUAGE_ELEMENT, new Language());
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76 |
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77 | DebugStream.println("LanguageManager: " + getSize() + " languages parsed.");
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78 |
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79 | this.model = this;
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80 | // Retrieve the default language
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81 | NodeList default_language_elements = CollectionConfiguration.getElementsByTagName(StaticStrings.LANGUAGE_DEFAULT_ELEMENT);
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82 | if(default_language_elements.getLength() > 0) {
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83 | default_language = new Language((Element)default_language_elements.item(0));
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84 | }
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85 |
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86 | // Retrieve the language metadata
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87 | language_metadata = CollectionDesignManager.collect_config.getLanguageMetadata();
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88 | // Load a series of code->language mappings into known_languages, by reading from the 'languages.xml' file, which is essentially a subset of the ISO 639 Standard.
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89 | known_languages = new LinkedHashMap();
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90 | NodeList language_elements = LANGUAGES_DOCUMENT.getDocumentElement().getElementsByTagName(StaticStrings.LANGUAGE_ELEMENT);
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91 | for(int i = 0; i < language_elements.getLength(); i++) {
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92 | Element language_element = (Element) language_elements.item(i);
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93 | String code = language_element.getAttribute(StaticStrings.CODE_ATTRIBUTE);
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94 | String name = language_element.getAttribute(StaticStrings.NAME_ATTRIBUTE);
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95 | known_languages.put(code.toLowerCase(), name);
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96 | name = null;
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97 | code = null;
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98 | language_element = null;
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99 | }
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100 | }
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101 |
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102 | /** Method to add a new language.
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103 | * @param language The <strong>Language</strong> to add.
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104 | * @see org.greenstone.gatherer.Gatherer
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105 | * @see org.greenstone.gatherer.collection.CollectionManager
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106 | */
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107 | private void addLanguage(Language language) {
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108 | if(!contains(language)) {
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109 | // need to add a pseudo metadata
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110 | CollectionMeta metadatum = new CollectionMeta(StaticStrings.STOP_CHARACTER + language.getCode());
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111 | metadatum.setValue(language.getName());
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112 | CollectionDesignManager.collectionmeta_manager.addMetadatum(metadatum);
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113 | add(getSize(), language);
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114 | }
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115 | }
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116 |
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117 | public void destroy() {
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118 | if(controls != null) {
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119 | controls.destroy();
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120 | controls = null;
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121 | }
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122 | known_languages.clear();
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123 | known_languages = null;
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124 | default_language = null;
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125 | }
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126 |
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127 | /** Method to retrieve the control for this manager.
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128 | * @return the Control for editing the language partitions
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129 | */
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130 | public Control getControls() {
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131 | if(controls == null) {
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132 | // Build controls
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133 | controls = new LanguageControl();
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134 | }
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135 | return controls;
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136 | }
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137 |
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138 | /** Method to retrieve a certain language object by its code.
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139 | * @param code The two letter code of a language, as a <strong>String</strong>.
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140 | * @return The <strong>Language</strong> that matches the given code, or <i>null</i> if no such language exists.
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141 | */
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142 | public Language getLanguage(String code) {
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143 | int size = getSize();
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144 | for(int i = 0; i < size; i++) {
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145 | Language language = (Language) getElementAt(i);
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146 | if(language.getCode().equals(code)) {
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147 | return language;
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148 | }
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149 | }
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150 | return null;
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151 | }
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152 |
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153 | public ArrayList getLanguages() {
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154 | return children();
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155 | }
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156 |
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157 | /** Method to return a list of the known language codes.
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158 | * @return an ArrayList containing the series of known language codes as per the languages.dat file
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159 | */
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160 | public ArrayList getLanguageCodes() {
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161 | return new ArrayList(known_languages.keySet());
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162 | }
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163 |
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164 | public String getLanguageName(String code) {
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165 | return (String) known_languages.get(code);
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166 | }
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167 |
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168 | /** Called when the detail mode has changed which in turn may cause several design elements to be available/hidden
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169 | * @param mode the new mode as an int
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170 | */
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171 | public void modeChanged(int mode) {
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172 |
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173 | }
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174 |
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175 | private int moveLanguage(Language lang, boolean move_up)
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176 | {
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177 | // Determine the current position of the language
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178 | int position = indexOf(lang);
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179 | int new_position;
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180 |
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181 | // Attempt to move the language up
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182 | if (move_up) {
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183 | // Check it's not already at the top
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184 | if (position == 0) {
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185 | return position;
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186 | }
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187 |
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188 | // This automatically removes the language first, as an Element can only exist once in a particular document
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189 | new_position = position - 1;
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190 | addBefore(lang, (Language) getElementAt(new_position));
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191 | }
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192 |
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193 | // Attempt to move the language down
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194 | else {
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195 | // Check it's not already at the bottom
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196 | if (position == (getSize()) - 1) {
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197 | return position;
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198 | }
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199 |
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200 | // This automatically removes the language first, as an Element can only exist once in a particular document
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201 | new_position = position + 1;
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202 | addAfter(lang, (Language) getElementAt(new_position));
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203 | }
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204 |
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205 | return new_position;
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206 | }
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207 |
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208 | /** Method to remove a certain language.
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209 | * @param language The <strong>Language</strong> to remove.
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210 | * @see org.greenstone.gatherer.Gatherer
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211 | * @see org.greenstone.gatherer.collection.CollectionManager
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212 | */
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213 | private void removeLanguage(Language language) {
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214 | remove(language);
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215 | // Remove any collection metadata for this language
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216 | CollectionDesignManager.collectionmeta_manager.removeMetadata(StaticStrings.STOP_CHARACTER + language.getCode());
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217 | if(default_language != null && default_language.equals(language)) {
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218 | setDefault(null);
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219 | }
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220 | }
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221 |
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222 | private void replaceLanguage(Language old_language, Language new_language) {
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223 | // Remove old lang collection meta
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224 | CollectionDesignManager.collectionmeta_manager.removeMetadata(StaticStrings.STOP_CHARACTER + old_language.getCode());
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225 | // Add new one
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226 | CollectionMeta metadatum = new CollectionMeta(StaticStrings.STOP_CHARACTER + new_language.getCode());
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227 | metadatum.setValue(new_language.getName());
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228 | CollectionDesignManager.collectionmeta_manager.addMetadatum(metadatum);
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229 | if(default_language != null && default_language.equals(old_language)) {
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230 | setDefault(new_language);
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231 | }
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232 |
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233 | // get the position of the old one
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234 | int position = indexOf(old_language);
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235 | remove(old_language);
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236 | add(position, new_language);
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237 | }
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238 |
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239 |
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240 | /** Method to set the default language.
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241 | * @param language The <strong>Language</strong> to use as a default, or <i>null</i> for no default.
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242 | * @see org.greenstone.gatherer.Gatherer
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243 | * @see org.greenstone.gatherer.collection.CollectionManager
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244 | */
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245 | public void setDefault(Language language) {
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246 | if(language != null) {
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247 | if(default_language == null) {
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248 | // Create the default index element, and place immediately after indexes element.
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249 | Element default_language_element = root.getOwnerDocument().createElement(StaticStrings.LANGUAGE_DEFAULT_ELEMENT);
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250 | default_language = new Language(default_language_element);
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251 | Node target_node = CollectionConfiguration.findInsertionPoint(default_language_element);
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252 | if(target_node != null) {
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253 | root.getOwnerDocument().getDocumentElement().insertBefore(default_language_element, target_node);
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254 | }
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255 | else {
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256 | root.getOwnerDocument().getDocumentElement().appendChild(default_language_element);
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257 | }
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258 | }
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259 | default_language.setAssigned(true);
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260 | default_language.setCode(language.getCode());
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261 | }
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262 | else {
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263 | if(default_language != null) {
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264 | default_language.setAssigned(false);
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265 | }
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266 | }
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267 | }
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268 |
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269 |
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270 | /** This class represents the visual component of the Language Manager. */
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271 | private class LanguageControl
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272 | extends JPanel
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273 | implements Control {
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274 | /** The list of available languages */
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275 | private CheckList language_list = null;
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276 | /** The button to add a new language support. */
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277 | private JButton add_button = null;
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278 | /** The button to replace a language support. */
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279 | private JButton replace_button = null;
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280 | /** The button to remove a supported language. */
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281 | private JButton remove_button = null;
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282 | /** button to move a language up in the list */
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283 | private JButton move_down_button;
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284 | /** button to move a language down in the list */
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285 | private JButton move_up_button;
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286 | /** The button to set the current language as the default one. */
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287 | private JButton set_default_button = null;
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288 | /** A list of currently supported languages. */
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289 | private JList selected_languages_list = null;
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290 | /** A list of metadata elements that may hold the language metadata */
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291 | private JComboBox language_metadata_combo = null;
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292 |
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293 | /** Constructor.
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294 | * @see org.greenstone.gatherer.cdm.LanguageManager.LanguageControl.AddListener
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295 | * @see org.greenstone.gatherer.cdm.LanguageManager.LanguageControl.ClearDefaultListener
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296 | * @see org.greenstone.gatherer.cdm.LanguageManager.LanguageControl.ListListener
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297 | * @see org.greenstone.gatherer.cdm.LanguageManager.LanguageControl.RemoveListener
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298 | * @see org.greenstone.gatherer.cdm.LanguageManager.LanguageControl.SelectorListener
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299 | * @see org.greenstone.gatherer.cdm.LanguageManager.LanguageControl.SetDefaultListener
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300 | */
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301 | public LanguageControl() {
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302 | super();
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303 | // Creation.
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304 | JPanel center_panel = new JPanel();
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305 |
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306 | JLabel selected_languages_list_label = new JLabel(Dictionary.get("CDM.LanguageManager.Assigned_Languages"));
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307 | selected_languages_list = new JList(model);
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308 | selected_languages_list.setCellRenderer(new MyLanguageListCellRenderer());
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309 | selected_languages_list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
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310 | selected_languages_list.setVisibleRowCount(5);
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311 |
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312 | JPanel control_panel = new JPanel();
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313 | JLabel selector_label = new JLabel(Dictionary.get("CDM.LanguageManager.Selector"));
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314 |
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315 | language_metadata_combo = new JComboBox(MetadataSetManager.getEveryMetadataSetElement().toArray());
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316 | language_metadata_combo.setOpaque(false);
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317 | language_metadata_combo.setToolTipText(Dictionary.get("CDM.LanguageManager.LanguageMetadata_Tooltip"));
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318 | JLabel language_metadata_label = new JLabel(Dictionary.get("CDM.LanguageManager.LanguageMetadata"));
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319 | String current_value = "ex.Language";
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320 | if (language_metadata.getAttribute(StaticStrings.ASSIGNED_ATTRIBUTE).equals(StaticStrings.TRUE_STR) && !language_metadata.getAttribute(StaticStrings.NAME_ATTRIBUTE).equals("")) {
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321 | current_value = language_metadata.getAttribute(StaticStrings.NAME_ATTRIBUTE);
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322 | }
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323 | ArgumentControl.selectValue(language_metadata_combo, current_value);
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324 | language_list = new CheckList(false);
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325 | language_list.setListData(getLanguageCodes());
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326 | language_list.setToolTipText(Dictionary.get("CDM.LanguageManager.Selector_Tooltip"));
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327 | language_list.setCellRenderer(new LanguageCheckListCellRenderer());
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328 |
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329 | JPanel movement_pane = new JPanel();
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330 | move_up_button = new GLIButton(Dictionary.get("CDM.Move.Move_Up"), JarTools.getImage("arrow-up.gif"), Dictionary.get("CDM.Move.Move_Up_Tooltip"));
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331 | move_up_button.setEnabled(false);
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332 |
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333 | move_down_button = new GLIButton(Dictionary.get("CDM.Move.Move_Down"), JarTools.getImage("arrow-down.gif"), Dictionary.get("CDM.Move.Move_Down_Tooltip"));
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334 | move_down_button.setEnabled(false);
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335 |
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336 | set_default_button = new GLIButton(Dictionary.get("CDM.LanguageManager.Set_Default"), Dictionary.get("CDM.LanguageManager.Set_Default_Tooltip"));
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337 | set_default_button.setEnabled(false);
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338 |
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339 | JPanel button_panel = new JPanel();
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340 |
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341 | add_button = new GLIButton(Dictionary.get("CDM.SubcollectionIndexManager.Add_Subindex"), Dictionary.get("CDM.LanguageManager.Add_Tooltip"));
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342 | add_button.setEnabled(false);
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343 |
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344 | replace_button = new GLIButton(Dictionary.get("CDM.SubcollectionIndexManager.Replace_Subindex"), Dictionary.get("CDM.LanguageManager.Replace_Tooltip"));
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345 | replace_button.setEnabled(false);
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346 |
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347 | remove_button = new GLIButton(Dictionary.get("CDM.SubcollectionIndexManager.Remove_Subindex"), Dictionary.get("CDM.LanguageManager.Remove_Tooltip"));
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348 | remove_button.setEnabled(false);
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349 |
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350 | // Set up and connect listeners.
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351 | add_button.addActionListener(new AddListener());
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352 | add_button.addActionListener(CollectionDesignManager.buildcol_change_listener);
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353 | move_down_button.addActionListener(new MoveListener(false));
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354 | move_down_button.addActionListener(CollectionDesignManager.buildcol_change_listener);
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355 | move_up_button.addActionListener(new MoveListener(true));
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356 | move_up_button.addActionListener(CollectionDesignManager.buildcol_change_listener);
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357 | remove_button.addActionListener(new RemoveListener());
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358 | remove_button.addActionListener(CollectionDesignManager.buildcol_change_listener);
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359 | replace_button.addActionListener(new ReplaceListener());
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360 | replace_button.addActionListener(CollectionDesignManager.buildcol_change_listener);
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361 |
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362 | language_list.addListSelectionListener(new LanguageListListener());
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363 | language_metadata_combo.addActionListener(new ActionListener() {
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364 | public void actionPerformed(ActionEvent event) {
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365 | String value = ((MetadataElement)language_metadata_combo.getSelectedItem()).getFullName();
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366 | language_metadata.setAttribute(StaticStrings.ASSIGNED_ATTRIBUTE, StaticStrings.TRUE_STR);
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367 | language_metadata.setAttribute(StaticStrings.NAME_ATTRIBUTE, value);
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368 | }
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369 | });
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370 | set_default_button.addActionListener(new SetDefaultListener());
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371 | set_default_button.addActionListener(CollectionDesignManager.buildcol_change_listener);
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372 | selected_languages_list.addListSelectionListener(new AssignedListListener());
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373 |
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374 | // Layout components
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375 | button_panel.setLayout(new GridLayout(1,3));
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376 | button_panel.add(add_button);
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377 | button_panel.add(replace_button);
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378 | button_panel.add(remove_button);
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379 |
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380 | JPanel metadata_panel = new JPanel();
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381 | metadata_panel.setLayout(new BorderLayout());
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382 | JPanel inner_panel = new JPanel();
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383 | inner_panel.setLayout(new BorderLayout(10,10));
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384 | inner_panel.add(language_metadata_label, BorderLayout.WEST);
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385 | inner_panel.add(language_metadata_combo, BorderLayout.CENTER);
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386 | metadata_panel.add(new JPanel(), BorderLayout.CENTER);
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387 | metadata_panel.add(inner_panel, BorderLayout.EAST);
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388 |
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389 | movement_pane.setBorder(BorderFactory.createEmptyBorder(0,2,0,0));
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390 | movement_pane.setLayout(new GridLayout(3,1));
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391 | movement_pane.add(move_up_button);
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392 | movement_pane.add(move_down_button);
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393 | movement_pane.add(set_default_button);
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394 |
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395 | control_panel.setBorder(BorderFactory.createEmptyBorder(5,0,0,0));
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396 | control_panel.setLayout(new BorderLayout());
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397 | control_panel.add(selector_label, BorderLayout.WEST);
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398 | control_panel.add(new JScrollPane(language_list), BorderLayout.CENTER);
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399 | control_panel.add(button_panel, BorderLayout.SOUTH);
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400 |
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401 | center_panel.setLayout(new BorderLayout());
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402 | center_panel.add(selected_languages_list_label, BorderLayout.NORTH);
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403 | center_panel.add(new JScrollPane(selected_languages_list), BorderLayout.CENTER);
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404 | center_panel.add(movement_pane, BorderLayout.EAST);
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405 |
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406 | JPanel top_panel = new JPanel();
|
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407 | top_panel.setLayout(new BorderLayout());
|
---|
408 | top_panel.add(metadata_panel, BorderLayout.NORTH);
|
---|
409 | top_panel.add(center_panel, BorderLayout.SOUTH);
|
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410 |
|
---|
411 | setBorder(BorderFactory.createEmptyBorder(5,5,5,5));
|
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412 | setLayout(new BorderLayout());
|
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413 | add(top_panel, BorderLayout.NORTH);
|
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414 | add(control_panel, BorderLayout.CENTER);
|
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415 | }
|
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416 |
|
---|
417 | /** Destructor. */
|
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418 | public void destroy() {
|
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419 | }
|
---|
420 |
|
---|
421 | public void gainFocus() {
|
---|
422 | }
|
---|
423 |
|
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424 | public void loseFocus() {
|
---|
425 | }
|
---|
426 |
|
---|
427 |
|
---|
428 | private void clearControls() {
|
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429 | selected_languages_list.clearSelection();
|
---|
430 | language_list.clearTicked();
|
---|
431 | add_button.setEnabled(false);
|
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432 | remove_button.setEnabled(false);
|
---|
433 | replace_button.setEnabled(false);
|
---|
434 | set_default_button.setEnabled(false);
|
---|
435 | move_down_button.setEnabled(false);
|
---|
436 | move_up_button.setEnabled(false);
|
---|
437 |
|
---|
438 | }
|
---|
439 |
|
---|
440 | private void updateControlsWithSelectedLanguage()
|
---|
441 | {
|
---|
442 | Language selected_lang = (Language) selected_languages_list.getSelectedValue();
|
---|
443 | if (selected_lang == null) {
|
---|
444 | clearControls();
|
---|
445 | return;
|
---|
446 | }
|
---|
447 |
|
---|
448 | // Display the selected subcollection index's sources
|
---|
449 | language_list.clearTicked();
|
---|
450 | language_list.setTickedObjects(selected_lang.getCode().split(","));
|
---|
451 |
|
---|
452 | }
|
---|
453 |
|
---|
454 | private void validateButtons() {
|
---|
455 | boolean add_enabled = false;
|
---|
456 | boolean replace_enabled = false;
|
---|
457 |
|
---|
458 | if (!language_list.isNothingTicked()) {
|
---|
459 | // Create a dummy Langauge and see if its in the collection
|
---|
460 | ArrayList langs = language_list.getTicked();
|
---|
461 | StringBuffer code_str = new StringBuffer();
|
---|
462 | boolean first = true;
|
---|
463 | for (int i=0; i<langs.size(); i++) {
|
---|
464 | if (!first) {
|
---|
465 | code_str.append(",");
|
---|
466 | } else {
|
---|
467 | first = false;
|
---|
468 | }
|
---|
469 | code_str.append(langs.get(i));
|
---|
470 | }
|
---|
471 | String lang_str = code_str.toString();
|
---|
472 |
|
---|
473 | if (!model.contains(lang_str)) {
|
---|
474 | add_enabled = true;
|
---|
475 | if (!selected_languages_list.isSelectionEmpty()) {
|
---|
476 | replace_enabled = true;
|
---|
477 | }
|
---|
478 | }
|
---|
479 |
|
---|
480 | }
|
---|
481 | add_button.setEnabled(add_enabled);
|
---|
482 | replace_button.setEnabled(replace_enabled);
|
---|
483 | }
|
---|
484 |
|
---|
485 | /** Listens for actions apon the 'add' button in the LanguageManager controls, and if detected calls the add method of the manager with a newly created language. */
|
---|
486 | private class AddListener
|
---|
487 | implements ActionListener {
|
---|
488 | /** Add a new language support.
|
---|
489 | * @param event an ActionEvent
|
---|
490 | * @see org.greenstone.gatherer.cdm.Language
|
---|
491 | */
|
---|
492 | public void actionPerformed(ActionEvent event) {
|
---|
493 | if (!language_list.isNothingTicked()) {
|
---|
494 | addLanguage(new Language(language_list.getTicked()));
|
---|
495 | clearControls();
|
---|
496 | }
|
---|
497 | }
|
---|
498 | }
|
---|
499 |
|
---|
500 | /** Listens for actions apon the 'remove' button in the LanguageManager controls, and if detected calls the remove method of the manager with the language selected for removal. */
|
---|
501 | private class RemoveListener
|
---|
502 | implements ActionListener {
|
---|
503 | /** Remove the currently selected language, if any.
|
---|
504 | * @param event An <strong>ActionEvent</strong>.
|
---|
505 | * @see org.greenstone.gatherer.cdm.Language
|
---|
506 | */
|
---|
507 | public void actionPerformed(ActionEvent event) {
|
---|
508 | Language delete_me = (Language)selected_languages_list.getSelectedValue();
|
---|
509 | if(delete_me != null) {
|
---|
510 | removeLanguage(delete_me);
|
---|
511 | }
|
---|
512 | }
|
---|
513 | }
|
---|
514 |
|
---|
515 | private class ReplaceListener
|
---|
516 | implements ActionListener {
|
---|
517 |
|
---|
518 | public void actionPerformed(ActionEvent event) {
|
---|
519 | if (selected_languages_list.isSelectionEmpty() || language_list.isNothingTicked()) {
|
---|
520 | // This should never happen, but just in case...
|
---|
521 | replace_button.setEnabled(false);
|
---|
522 | return;
|
---|
523 | }
|
---|
524 | Language old_language = (Language) selected_languages_list.getSelectedValue();
|
---|
525 | Language new_language = new Language(language_list.getTicked());
|
---|
526 | replaceLanguage(old_language, new_language);
|
---|
527 |
|
---|
528 | }
|
---|
529 | }
|
---|
530 |
|
---|
531 | private class LanguageListListener
|
---|
532 | implements ListSelectionListener {
|
---|
533 |
|
---|
534 | public void valueChanged(ListSelectionEvent event) {
|
---|
535 | if (event.getValueIsAdjusting()) {
|
---|
536 | return;
|
---|
537 | }
|
---|
538 | validateButtons();
|
---|
539 | }
|
---|
540 | }
|
---|
541 |
|
---|
542 | /** Listens for actions apon the 'set default' button in the LanguageManager controls, and if detected calls the <i>setDefault()</i> method of the manager with the language selected for default. */
|
---|
543 | private class SetDefaultListener
|
---|
544 | implements ActionListener {
|
---|
545 | /** Set the default index to the one currently selected, if any.
|
---|
546 | * @param event An <strong>ActionEvent</strong>.
|
---|
547 | * @see org.greenstone.gatherer.cdm.Language
|
---|
548 | */
|
---|
549 | public void actionPerformed(ActionEvent event) {
|
---|
550 | Language selected_language = (Language) selected_languages_list.getSelectedValue();
|
---|
551 | if(selected_language != null) {
|
---|
552 | setDefault(selected_language);
|
---|
553 | // This should cause a repaint of just the desired row
|
---|
554 | selected_languages_list.setSelectedValue(selected_language, true);
|
---|
555 | }
|
---|
556 | set_default_button.setEnabled(false);
|
---|
557 | }
|
---|
558 | }
|
---|
559 |
|
---|
560 | private class MoveListener
|
---|
561 | implements ActionListener
|
---|
562 | {
|
---|
563 | private boolean move_up;
|
---|
564 |
|
---|
565 | public MoveListener(boolean move_up)
|
---|
566 | {
|
---|
567 | this.move_up = move_up;
|
---|
568 | }
|
---|
569 |
|
---|
570 | public void actionPerformed(ActionEvent event)
|
---|
571 | {
|
---|
572 | // Retrieve the selected language
|
---|
573 | Language language = (Language) selected_languages_list.getSelectedValue();
|
---|
574 | if (language != null) {
|
---|
575 | int new_position = moveLanguage(language, move_up);
|
---|
576 | // Ensure the language that moved is still selected
|
---|
577 | selected_languages_list.setSelectedIndex(new_position);
|
---|
578 | }
|
---|
579 | }
|
---|
580 | }
|
---|
581 |
|
---|
582 |
|
---|
583 | /** Listens for selections within the list on the LanguageManager controls, and if a change is detected enables, or disables, controls appropriately. */
|
---|
584 | private class AssignedListListener
|
---|
585 | implements ListSelectionListener {
|
---|
586 | /** Enable or disable controls depending on the current list selection.
|
---|
587 | * @param event A <strong>ListSelectionEvent</strong>.
|
---|
588 | */
|
---|
589 | public void valueChanged(ListSelectionEvent event) {
|
---|
590 | if (event.getValueIsAdjusting()) {
|
---|
591 | return;
|
---|
592 | }
|
---|
593 | if(selected_languages_list.isSelectionEmpty()) {
|
---|
594 | clearControls();
|
---|
595 | return;
|
---|
596 | }
|
---|
597 |
|
---|
598 | int i = selected_languages_list.getSelectedIndex();
|
---|
599 | int size = selected_languages_list.getModel().getSize();
|
---|
600 | Language selected_lang = (Language)selected_languages_list.getSelectedValue();
|
---|
601 | remove_button.setEnabled(true);
|
---|
602 | replace_button.setEnabled(false);
|
---|
603 | add_button.setEnabled(false);
|
---|
604 | set_default_button.setEnabled(default_language == null || !default_language.equals(selected_lang));
|
---|
605 |
|
---|
606 | if (i > 0) {
|
---|
607 | move_up_button.setEnabled(true);
|
---|
608 | }
|
---|
609 | else {
|
---|
610 | move_up_button.setEnabled(false);
|
---|
611 | }
|
---|
612 | if (i < size-1){
|
---|
613 | move_down_button.setEnabled(true);
|
---|
614 | }
|
---|
615 | else {
|
---|
616 | move_down_button.setEnabled(false);
|
---|
617 | }
|
---|
618 | updateControlsWithSelectedLanguage();
|
---|
619 | }
|
---|
620 | }
|
---|
621 |
|
---|
622 | private class MyLanguageListCellRenderer
|
---|
623 | extends DefaultListCellRenderer
|
---|
624 | {
|
---|
625 | /** Return a component that has been configured to display the specified value. */
|
---|
626 | public Component getListCellRendererComponent(JList list, Object value, int index, boolean isSelected, boolean cellHasFocus) {
|
---|
627 | JLabel component = (JLabel) super.getListCellRendererComponent(list, value, index, isSelected, cellHasFocus);
|
---|
628 | if (default_language != null && default_language.equals(value)) {
|
---|
629 | component.setText(component.getText() + " [" + Dictionary.get("CDM.LanguageManager.Default_Language")+"]");
|
---|
630 | }
|
---|
631 | return component;
|
---|
632 | }
|
---|
633 | }
|
---|
634 | }
|
---|
635 |
|
---|
636 | /** A custom list cell renderer for producing rows which contain clickable check boxes. */
|
---|
637 | private class LanguageCheckListCellRenderer
|
---|
638 | implements ListCellRenderer
|
---|
639 | {
|
---|
640 | /** Return a component that has been configured to display the specified value. That component's paint method is then called to "render" the cell. If it is necessary to compute the dimensions of a list because the list cells do not have a fixed size, this method is called to generate a component on which getPreferredSize can be invoked.
|
---|
641 | * @param list The </strong>JList</strong> we're painting.
|
---|
642 | * @param value The value returned by list.getModel().getElementAt(index), as an <strong>Object</strong>.
|
---|
643 | * @param index The cells index as an <i>int</i>.
|
---|
644 | * @param is_selected <i>true</i> if the specified cell was selected, <i>false</i> otherwise.
|
---|
645 | * @param cell_has_focus <i>true</i> if and only if the specified cell has the focus.
|
---|
646 | * @return A <strong>Component</strong> whose paint() method will render the specified value.
|
---|
647 | */
|
---|
648 | public Component getListCellRendererComponent(JList list, Object value, int index, boolean is_selected, boolean cell_has_focus) {
|
---|
649 | JCheckBox checkbox = (JCheckBox) value;
|
---|
650 | checkbox.setBackground(list.getBackground());
|
---|
651 | checkbox.setForeground(list.getForeground());
|
---|
652 | checkbox.setBorderPainted(false);
|
---|
653 | checkbox.setEnabled(list.isEnabled());
|
---|
654 | checkbox.setFont(list.getFont());
|
---|
655 | checkbox.setFocusPainted(false);
|
---|
656 | checkbox.setBorder((is_selected) ? UIManager.getBorder("List.focusCellHighlightBorder") : new EmptyBorder(1, 1, 1, 1));
|
---|
657 |
|
---|
658 | String code = (String)((CheckListEntry)list.getModel().getElementAt(index)).getObject();
|
---|
659 | checkbox.setText((String)known_languages.get(code));
|
---|
660 |
|
---|
661 | return checkbox;
|
---|
662 | }
|
---|
663 | }
|
---|
664 |
|
---|
665 | }
|
---|