[4838] | 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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[5590] | 28 |
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[4932] | 29 | import java.awt.*;
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| 30 | import java.awt.event.*;
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| 31 | import java.io.*;
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[7959] | 32 | import java.net.*;
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[4932] | 33 | import java.util.*;
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| 34 | import java.util.jar.*;
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| 35 | import javax.swing.*;
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| 36 | import javax.swing.event.*;
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| 37 | import org.apache.xerces.parsers.*;
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[8231] | 38 | import org.greenstone.gatherer.Configuration;
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[8236] | 39 | import org.greenstone.gatherer.DebugStream;
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[5590] | 40 | import org.greenstone.gatherer.Dictionary;
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[4838] | 41 | import org.greenstone.gatherer.Gatherer;
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[12644] | 42 | import org.greenstone.gatherer.greenstone.Classifiers;
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[11031] | 43 | import org.greenstone.gatherer.gui.DesignPaneHeader;
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[4932] | 44 | import org.greenstone.gatherer.gui.GComboBox;
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[6318] | 45 | import org.greenstone.gatherer.gui.GLIButton;
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[10011] | 46 | import org.greenstone.gatherer.util.JarTools;
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[5984] | 47 | import org.greenstone.gatherer.util.StaticStrings;
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[4838] | 48 | import org.greenstone.gatherer.util.Utility;
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[8015] | 49 | import org.greenstone.gatherer.util.XMLTools;
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[4932] | 50 | import org.w3c.dom.*;
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| 51 | import org.xml.sax.*;
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[5590] | 52 |
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[4838] | 53 | /** This class is responsible for keeping track of all the classifiers assigned to this collection, and providing methods for adding and removing them.
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| 54 | * @author John Thompson, Greenstone Digital Library, University of Waikato
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| 55 | * @version 2.3
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| 56 | */
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| 57 | public class ClassifierManager
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[14036] | 58 | extends DOMProxyListModel {
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[22970] | 59 |
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| 60 | private DatabaseTypeManager database_type_manager = null;
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| 61 | private String database_type = null;
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| 62 |
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[4838] | 63 | /** The controls for editing the contents of this manager. */
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| 64 | private Control controls = null;
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[14036] | 65 |
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[4932] | 66 | private DOMProxyListModel model;
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[18571] | 67 | private Classifier default_classifier = null;
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| 68 |
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[4838] | 69 | /** Constructor.
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| 70 | * @see org.greenstone.gatherer.cdm.DynamicListModel
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| 71 | * @see org.greenstone.gatherer.collection.CollectionManager
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| 72 | */
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[14036] | 73 | public ClassifierManager () {
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| 74 | super (CollectionDesignManager.collect_config.getDocumentElement (), StaticStrings.CLASSIFY_ELEMENT, new Classifier ());
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| 75 | this.model = this;
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| 76 | DebugStream.println ("ClassifierManager: " + getSize () + " classifiers parsed.");
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[22970] | 77 |
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| 78 | database_type_manager = new DatabaseTypeManager();
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| 79 | database_type = database_type_manager.getDatabaseType();
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[14036] | 80 |
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| 81 | // Force the assigned classifiers to be loaded and cached now
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| 82 | for (int i = 0; i < getSize (); i++) {
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| 83 | getElementAt (i);
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| 84 | }
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[4838] | 85 | }
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[14036] | 86 |
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| 87 |
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[12631] | 88 | /** Retrieve a list of the classifiers that are available to be added to the collection. */
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[14036] | 89 | private Object[] getAvailableClassifiers () {
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| 90 | ArrayList available = new ArrayList ();
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| 91 |
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| 92 | // Add all the non-abstract core Greenstone classifiers
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| 93 | ArrayList classifiers_list = Classifiers.getClassifiersList ();
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| 94 | for (int i = 0; i < classifiers_list.size (); i++) {
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| 95 | Classifier classifier = (Classifier) classifiers_list.get (i);
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| 96 | if (!classifier.isAbstract ()) {
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| 97 | available.add (classifier);
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| 98 | }
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[18571] | 99 | if (classifier.toString().equals("List")) {
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| 100 | default_classifier = classifier;
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| 101 | }
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[14036] | 102 | }
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| 103 |
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| 104 | // Sort the available classifiers into alphabetical order
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| 105 | Collections.sort (available);
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| 106 |
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| 107 | return available.toArray ();
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[4838] | 108 | }
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[14036] | 109 |
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| 110 |
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| 111 | /** Method to assign a classifier (i.e., add a new classifier onto the list).
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[4932] | 112 | * @param classifier The base <strong>Classifier</strong> to assign.
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| 113 | * @see org.greenstone.gatherer.cdm.DynamicListModel
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| 114 | */
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[14036] | 115 | private void assignClassifier (Classifier classifier) {
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| 116 | if(!contains (classifier)) {
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| 117 | Element element = classifier.getElement ();
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| 118 | // Locate where we should insert this new classifier.
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| 119 | Node target_node = CollectionConfiguration.findInsertionPoint (element);
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| 120 | add (root, classifier, target_node);
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| 121 |
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| 122 | // tell the format manager to update the names of its format statements
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| 123 | Gatherer.c_man.getCollection ().cdm.format_manager.refresh ();
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| 124 | }
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[4838] | 125 | }
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[14036] | 126 |
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| 127 |
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[12631] | 128 | /** Destructor. */
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[14036] | 129 | public void destroy () {
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| 130 | if (controls != null) {
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| 131 | controls.destroy ();
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| 132 | controls = null;
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| 133 | }
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[4838] | 134 | }
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[14036] | 135 |
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| 136 |
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[4932] | 137 | /** Method to retrieve the classifier with the given index.
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| 138 | * @param index The index of the desired classifier as an <i>int</i>.
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| 139 | * @return The requested Classifier or <i>null</i> if no such classifier exists.
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| 140 | */
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[14036] | 141 | public Classifier getClassifier (int index) {
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| 142 | if(0 <= index && index < getSize ()) {
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| 143 | return (Classifier) getElementAt (index);
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| 144 | }
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| 145 | return null;
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[4932] | 146 | }
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[14036] | 147 |
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[4838] | 148 | /** Method to retrieve the control for this manager.
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[4932] | 149 | * @return the Control for editing classifiers
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| 150 | */
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[14036] | 151 | public Control getControls () {
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| 152 | if(controls == null) {
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| 153 | // Build controls
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| 154 | this.controls = new ClassifierControl ();
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| 155 | }
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| 156 | return controls;
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[4838] | 157 | }
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[14036] | 158 |
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[12072] | 159 | /** Called when the detail mode has changed which in turn may cause several design elements to be available/hidden
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| 160 | * @param mode the new mode as an int
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| 161 | */
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[14036] | 162 | public void modeChanged (int mode) {
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| 163 |
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[12072] | 164 | }
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[14036] | 165 |
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| 166 |
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| 167 |
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[5984] | 168 | /** Determine if the Phind classifier has been assigned.
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| 169 | * @return true if it has, false otherwise
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| 170 | */
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[14036] | 171 | public boolean isPhindClassifierAssigned () {
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| 172 | for(int i = 0; i < getSize (); i++) {
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| 173 | Classifier classifier = (Classifier) getElementAt (i);
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| 174 | if(classifier.getName ().equalsIgnoreCase (StaticStrings.PHIND_CLASSIFIER)) {
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| 175 | return true;
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| 176 | }
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| 177 | classifier = null;
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| 178 | }
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| 179 | return false;
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[5984] | 180 | }
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[14036] | 181 |
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[12841] | 182 | /** Determine if a DateList classifier has been assigned
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| 183 | * @return true if it has, false otherwise
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| 184 | */
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[14036] | 185 | public boolean isDateListClassifierAssigned () {
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| 186 | for(int i = 0; i < getSize (); i++) {
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| 187 | Classifier classifier = (Classifier) getElementAt (i);
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| 188 | if(classifier.getName ().equalsIgnoreCase (StaticStrings.DATELIST_CLASSIFIER)) {
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| 189 | return true;
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| 190 | }
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| 191 | classifier = null;
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| 192 | }
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| 193 | return false;
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| 194 |
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[12841] | 195 | }
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[4932] | 196 | /** Method to move a classifier in the list order.
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| 197 | * @param classifier the Classifier you want to move.
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| 198 | * @param direction true to move the classifier up, false to move it down.
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| 199 | * @param all true to move to move all the way, false for a single step.
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| 200 | */
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[14036] | 201 | private void moveClassifier (Classifier classifier, boolean direction, boolean all) {
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| 202 | if(getSize () < 2) {
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| 203 | DebugStream.println ("Not enough classifiers to allow moving.");
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| 204 | return;
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| 205 | }
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| 206 | if(all) {
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| 207 | // Move to top
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| 208 | if(direction) {
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| 209 | // Remove the moving classifier
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| 210 | remove (classifier);
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| 211 | // Retrieve the first classifier
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| 212 | Classifier first_classifier = (Classifier) getElementAt (0);
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| 213 | // Add the moving classifier before the first classifier
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| 214 | addBefore (classifier, first_classifier);
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| 215 | first_classifier = null;
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| 216 | }
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| 217 | else {
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| 218 | // Remove the moving classifier
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| 219 | remove (classifier);
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| 220 | // And add after last classifier
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| 221 | add (getSize (), classifier);
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| 222 | }
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| 223 | }
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| 224 | else {
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| 225 | // Try to move the classifier one step in the desired direction.
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| 226 | int index = indexOf (classifier);
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| 227 | ///ystem.err.println("Index of " + classifier + " = " + index);
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| 228 | if(direction) {
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| 229 | index--;
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| 230 | if(index < 0) {
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| 231 | String args[] = new String[2];
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| 232 | args[0] = Dictionary.get ("CDM.ClassifierManager.Classifier");
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| 233 | args[1] = classifier.getName ();
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| 234 | JOptionPane.showMessageDialog (Gatherer.g_man, Dictionary.get ("CDM.Move.At_Top", args), Dictionary.get ("CDM.Move.Title"), JOptionPane.ERROR_MESSAGE);
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| 235 | return;
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| 236 | }
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| 237 | remove (classifier);
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| 238 | add (index, classifier);
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| 239 | }
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| 240 | else {
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| 241 | index++;
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| 242 | if(index >= getSize ()) {
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| 243 | String args[] = new String[2];
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| 244 | args[0] = Dictionary.get ("CDM.ClassifierManager.Classifier_Str");
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| 245 | args[1] = classifier.getName ();
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| 246 | JOptionPane.showMessageDialog (Gatherer.g_man, Dictionary.get ("CDM.Move.At_Bottom", args), Dictionary.get ("CDM.Move.Title"), JOptionPane.ERROR_MESSAGE);
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| 247 | return;
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| 248 | }
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| 249 | remove (classifier);
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| 250 | add (index, classifier);
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| 251 | }
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| 252 | }
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| 253 |
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| 254 | // tell the format manager to update the names of its format statements
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| 255 | Gatherer.c_man.getCollection ().cdm.format_manager.refresh ();
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[4838] | 256 | }
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[10341] | 257 |
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[4932] | 258 | /** This method removes an assigned classifier. I was tempted to call it unassign, but remove is more consistant. Note that there is no way to remove a classifier from the library.
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[5590] | 259 | * @param classifier The Classifier to remove
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| 260 | * @see org.greenstone.gatherer.cdm.DynamicListModel
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| 261 | */
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[14036] | 262 | private void removeClassifier (Classifier classifier) {
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| 263 | remove (classifier);
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| 264 | // tell the format manager to update the names of its format statements
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| 265 | Gatherer.c_man.getCollection ().cdm.format_manager.refresh ();
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| 266 |
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[4932] | 267 | }
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[14036] | 268 | // When remove, move, and add(assign) classifiers, this method has to be called to get the feature combobox
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| 269 | // on the 'format feature' panel of the 'format' panel up to date.
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| 270 | // private void informFormatManager() {
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| 271 | // //this is really to call the gainFocus() method
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| 272 | // CollectionDesignManager.format_manager.getControls();
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| 273 | // }
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| 274 |
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[4838] | 275 | /** A class which provides controls for assigned and editing classifiers. */
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[4932] | 276 | private class ClassifierControl
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[14036] | 277 | extends JPanel
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[22971] | 278 | implements Control, DatabaseTypeManager.DatabaseTypeListener {
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[14036] | 279 | /** A combobox containing all of the known classifiers, including those that may have already been assigned. */
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| 280 | private JComboBox classifier_combobox = null;
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| 281 | /** Button for adding classifiers. */
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| 282 | private JButton add = null;
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| 283 | /** Button for configuring the selected classifier. */
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| 284 | private JButton configure = null;
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| 285 | private JButton move_down_button;
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| 286 | private JButton move_up_button;
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| 287 |
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| 288 | /** Button to remove the selected classifier. */
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| 289 | private JButton remove = null;
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[22970] | 290 |
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[22971] | 291 | private JPanel database_type_panel = (JPanel)database_type_manager.getControls();
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[14036] | 292 |
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| 293 | /** A list of assigned classifiers. */
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| 294 | private JList classifier_list = null;
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| 295 |
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| 296 | /** Constructor.
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| 297 | * @see org.greenstone.gatherer.cdm.ClassifierManager.ClassifierControl.AddListener
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| 298 | * @see org.greenstone.gatherer.cdm.ClassifierManager.ClassifierControl.ConfigureListener
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| 299 | * @see org.greenstone.gatherer.cdm.ClassifierManager.ClassifierControl.RemoveListener
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| 300 | */
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| 301 | public ClassifierControl () {
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| 302 | // Create
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[18412] | 303 | this.setComponentOrientation(Dictionary.getOrientation());
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[14036] | 304 | add = new GLIButton (Dictionary.get ("CDM.ClassifierManager.Add"), Dictionary.get ("CDM.ClassifierManager.Add_Tooltip"));
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| 305 |
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| 306 | JPanel button_pane = new JPanel ();
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[18412] | 307 | button_pane.setComponentOrientation(Dictionary.getOrientation());
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[14036] | 308 | JPanel central_pane = new JPanel ();
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[18412] | 309 | central_pane.setComponentOrientation(Dictionary.getOrientation());
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[14036] | 310 |
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| 311 | configure = new GLIButton (Dictionary.get ("CDM.ClassifierManager.Configure"), Dictionary.get ("CDM.ClassifierManager.Configure_Tooltip"));
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| 312 | configure.setEnabled (false);
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| 313 |
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| 314 | JPanel header_pane = new DesignPaneHeader ("CDM.GUI.Classifiers", "classifiers");
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| 315 |
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| 316 | ClassifierComboboxListener ccl = new ClassifierComboboxListener ();
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| 317 | classifier_combobox = new JComboBox (getAvailableClassifiers ());
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[18412] | 318 | classifier_combobox.setComponentOrientation(Dictionary.getOrientation());
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[14036] | 319 | classifier_combobox.setOpaque (!Utility.isMac ());
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| 320 | classifier_combobox.setEditable (false);
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| 321 | if(classifier_combobox.getItemCount () > 0) {
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[18571] | 322 | if (default_classifier!=null) {
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| 323 | classifier_combobox.setSelectedItem(default_classifier);
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| 324 | } else {
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| 325 | classifier_combobox.setSelectedIndex (0);
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| 326 | }
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[14036] | 327 | ccl.itemStateChanged (new ItemEvent (classifier_combobox, 0, null, ItemEvent.SELECTED));
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| 328 | }
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| 329 |
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| 330 | JLabel classifier_label = new JLabel (Dictionary.get ("CDM.ClassifierManager.Classifier"));
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[18412] | 331 | classifier_label.setComponentOrientation(Dictionary.getOrientation());
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[14036] | 332 |
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| 333 | classifier_list = new JList (model);
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[18412] | 334 | classifier_list.setComponentOrientation(Dictionary.getOrientation());
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| 335 |
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[14036] | 336 | classifier_list.setOpaque (true);
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| 337 | classifier_list.setSelectionMode (ListSelectionModel.SINGLE_SELECTION);
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| 338 | JLabel classifier_list_label = new JLabel (Dictionary.get ("CDM.ClassifierManager.Assigned"));
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[18412] | 339 | classifier_list_label.setComponentOrientation(Dictionary.getOrientation());
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[14036] | 340 |
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| 341 | classifier_list_label.setOpaque (true);
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| 342 |
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| 343 | JPanel classifier_list_pane = new JPanel ();
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[18412] | 344 | classifier_list_pane.setComponentOrientation(Dictionary.getOrientation());
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| 345 |
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[14036] | 346 | JPanel classifier_pane = new JPanel ();
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[18412] | 347 | classifier_pane.setComponentOrientation(Dictionary.getOrientation());
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[14036] | 348 | remove = new GLIButton (Dictionary.get ("CDM.ClassifierManager.Remove"), Dictionary.get ("CDM.ClassifierManager.Remove_Tooltip"));
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| 349 | remove.setEnabled (false);
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| 350 |
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| 351 | JPanel temp = new JPanel (new BorderLayout ());
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[18412] | 352 | temp.setComponentOrientation(Dictionary.getOrientation());
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[14036] | 353 |
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| 354 | JPanel move_button_pane = new JPanel ();
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[18412] | 355 | move_button_pane.setComponentOrientation(Dictionary.getOrientation());
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[14036] | 356 |
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| 357 | 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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| 358 | move_up_button.setEnabled (false);
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| 359 |
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| 360 | 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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| 361 | move_down_button.setEnabled (false);
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| 362 |
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| 363 | // Listeners
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| 364 | add.addActionListener (new AddListener ());
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| 365 | classifier_combobox.addItemListener (ccl);
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| 366 | configure.addActionListener (new ConfigureListener ());
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| 367 | remove.addActionListener (new RemoveListener ());
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| 368 | remove.addActionListener (CollectionDesignManager.buildcol_change_listener);
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| 369 | classifier_list.addMouseListener (new ClickListener ());
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| 370 | classifier_list.addListSelectionListener (new ListListener ());
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| 371 | ccl = null;
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| 372 |
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| 373 | MoveListener ml = new MoveListener ();
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| 374 | move_down_button.addActionListener (ml);
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| 375 | move_down_button.addActionListener (CollectionDesignManager.buildcol_change_listener);
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| 376 | move_up_button.addActionListener (ml);
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| 377 | move_up_button.addActionListener (CollectionDesignManager.buildcol_change_listener);
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| 378 |
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| 379 | // Layout
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[18412] | 380 | JPanel tmp;
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[14036] | 381 | move_button_pane.setLayout (new GridLayout (4,1));
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| 382 | move_button_pane.add (move_up_button);
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[18412] | 383 | tmp = new JPanel ();
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| 384 | tmp.setComponentOrientation(Dictionary.getOrientation());
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| 385 | move_button_pane.add (tmp);
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| 386 | tmp = new JPanel ();
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| 387 | tmp.setComponentOrientation(Dictionary.getOrientation());
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| 388 | move_button_pane.add (tmp);
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[14036] | 389 | move_button_pane.add (move_down_button);
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| 390 |
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| 391 | classifier_list_label.setBorder (BorderFactory.createEmptyBorder (0,2,0,2));
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| 392 |
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| 393 | classifier_list_pane.setLayout (new BorderLayout ());
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| 394 | classifier_list_pane.add (classifier_list_label, BorderLayout.NORTH);
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| 395 | classifier_list_pane.add (new JScrollPane (classifier_list), BorderLayout.CENTER);
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[18412] | 396 | classifier_list_pane.add (move_button_pane, BorderLayout.LINE_END);
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[14036] | 397 |
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| 398 | classifier_label.setBorder (BorderFactory.createEmptyBorder (0,0,5,0));
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| 399 |
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| 400 | classifier_pane.setBorder (BorderFactory.createEmptyBorder (5,0,5,0));
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| 401 | classifier_pane.setLayout (new BorderLayout (5,0));
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[18412] | 402 | classifier_pane.add (classifier_label, BorderLayout.LINE_START);
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[14036] | 403 | classifier_pane.add (classifier_combobox, BorderLayout.CENTER);
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| 404 |
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| 405 | button_pane.setLayout (new GridLayout (1, 3));
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| 406 | button_pane.add (add);
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| 407 | button_pane.add (configure);
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| 408 | button_pane.add (remove);
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| 409 |
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| 410 | temp.add (classifier_pane, BorderLayout.NORTH);
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| 411 | temp.add (button_pane, BorderLayout.SOUTH);
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| 412 |
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| 413 | central_pane.setBorder (BorderFactory.createEmptyBorder (5,0,0,0));
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| 414 | central_pane.setLayout (new BorderLayout ());
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[22970] | 415 | central_pane.add (database_type_panel, BorderLayout.NORTH);
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[14036] | 416 | central_pane.add (classifier_list_pane, BorderLayout.CENTER);
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| 417 | central_pane.add (temp, BorderLayout.SOUTH);
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| 418 |
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| 419 | setBorder (BorderFactory.createEmptyBorder (0,5,0,0));
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| 420 | setLayout (new BorderLayout ());
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| 421 | add (header_pane, BorderLayout.NORTH);
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| 422 | add (central_pane, BorderLayout.CENTER);
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| 423 | }
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| 424 |
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| 425 | /** Method which acts like a destructor, tidying up references to persistant objects.
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| 426 | */
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| 427 | public void destroy () {
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| 428 | add = null;
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| 429 | classifier_combobox = null;
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| 430 | classifier_list = null;
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| 431 | configure = null;
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| 432 | //instructions = null;
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| 433 | remove = null;
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| 434 | }
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| 435 |
|
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| 436 | public void gainFocus () {
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| 437 | }
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| 438 |
|
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| 439 | public void loseFocus () {
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| 440 | }
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| 441 |
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[22970] | 442 |
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| 443 | public void databaseTypeChanged(String new_database_type)
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| 444 | {
|
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| 445 | if(database_type.equals(new_database_type)){
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| 446 | return;
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| 447 | }
|
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| 448 | database_type = new_database_type;
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| 449 | }
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[14036] | 450 |
|
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| 451 | private class AddListener
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| 452 | implements ActionListener {
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| 453 | public void actionPerformed (ActionEvent event) {
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| 454 | if (classifier_combobox.getSelectedItem () != null) {
|
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| 455 | // This must be done on a new thread for the remote building code
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| 456 | new AddClassifierTask (classifier_combobox.getSelectedItem ().toString ()).start ();
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| 457 | }
|
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| 458 | }
|
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| 459 | }
|
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| 460 |
|
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| 461 |
|
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| 462 | private class AddClassifierTask
|
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| 463 | extends Thread {
|
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| 464 | private String classifier_name;
|
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| 465 |
|
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| 466 | public AddClassifierTask (String classifier_name) {
|
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| 467 | this.classifier_name = classifier_name;
|
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| 468 | }
|
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| 469 |
|
---|
| 470 | public void run () {
|
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| 471 | // Retrieve the classifier
|
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| 472 | Classifier classifier = Classifiers.getClassifier (classifier_name, true);
|
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| 473 | if (classifier == null) {
|
---|
| 474 | System.err.println ("Error: getClassifier() returned null.");
|
---|
| 475 | return;
|
---|
| 476 | }
|
---|
| 477 |
|
---|
| 478 | // Create a new element in the DOM
|
---|
| 479 | Element new_classifier_element = CollectionConfiguration.createElement (StaticStrings.CLASSIFY_ELEMENT);
|
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| 480 | new_classifier_element.setAttribute (StaticStrings.TYPE_ATTRIBUTE, classifier.getName ());
|
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| 481 |
|
---|
| 482 | Classifier new_classifier = new Classifier (new_classifier_element, classifier);
|
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| 483 |
|
---|
| 484 | ArgumentConfiguration ac = new ArgumentConfiguration (new_classifier);
|
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| 485 | ac.addOKButtonActionListener (CollectionDesignManager.buildcol_change_listener);
|
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| 486 | if (ac.display ()) {
|
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| 487 | assignClassifier (new_classifier);
|
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| 488 | classifier_list.setSelectedValue (new_classifier, true);
|
---|
| 489 | }
|
---|
| 490 | }
|
---|
| 491 | }
|
---|
| 492 |
|
---|
| 493 |
|
---|
| 494 | /** This listener reacts to changes in the current selection of the classifier combobox. */
|
---|
| 495 | private class ClassifierComboboxListener
|
---|
| 496 | implements ItemListener {
|
---|
| 497 | /** When a user selects a certain classifier, update the tooltip to show the classifier description. */
|
---|
| 498 | public void itemStateChanged (ItemEvent event) {
|
---|
| 499 | if(event.getStateChange () == ItemEvent.SELECTED) {
|
---|
| 500 | // Retrieve the selected classifier
|
---|
| 501 | Classifier current_selection = (Classifier) classifier_combobox.getSelectedItem ();
|
---|
| 502 | // And reset the tooltip.
|
---|
| 503 | classifier_combobox.setToolTipText (Utility.formatHTMLWidth (current_selection.getDescription (), 40));
|
---|
| 504 | current_selection = null;
|
---|
| 505 | }
|
---|
| 506 | }
|
---|
| 507 | }
|
---|
| 508 |
|
---|
| 509 |
|
---|
| 510 | /** Listens for double clicks apon the list and react as if the configure button was pushed. */
|
---|
| 511 | private class ClickListener
|
---|
| 512 | extends MouseAdapter {
|
---|
| 513 | /** Called whenever the mouse is clicked over a registered component, we use this to chain through to the configure prompt.
|
---|
| 514 | * @param event A <strong>MouseEvent</strong> containing information about the mouse click.
|
---|
| 515 | */
|
---|
| 516 | public void mouseClicked (MouseEvent event) {
|
---|
| 517 | if(event.getClickCount () == 2 ) {
|
---|
| 518 | if(!classifier_list.isSelectionEmpty ()) {
|
---|
| 519 | Classifier classifier = (Classifier) classifier_list.getSelectedValue ();
|
---|
| 520 | ArgumentConfiguration ac = new ArgumentConfiguration (classifier);
|
---|
| 521 | ac.addOKButtonActionListener (CollectionDesignManager.buildcol_change_listener);
|
---|
| 522 | if (ac.display ()) {
|
---|
| 523 | refresh (classifier);
|
---|
| 524 | }
|
---|
| 525 | ac.destroy ();
|
---|
| 526 | ac = null;
|
---|
| 527 | }
|
---|
| 528 | }
|
---|
| 529 | }
|
---|
| 530 | }
|
---|
| 531 |
|
---|
| 532 | /** This class listens for actions upon the configure button in the controls, and if detected creates a new ArgumentConfiguration dialog box to allow for configuration.
|
---|
| 533 | */
|
---|
| 534 | private class ConfigureListener
|
---|
| 535 | implements ActionListener {
|
---|
| 536 | /** Any implementation of <i>ActionListener</i> must include this method so that we can be informed when an action has occured on one of our target controls.
|
---|
| 537 | * @param event An <strong>ActionEvent</strong> containing information garnered from the control action.
|
---|
| 538 | * @see org.greenstone.gatherer.cdm.ArgumentConfiguration
|
---|
| 539 | * @see org.greenstone.gatherer.cdm.Classifier
|
---|
| 540 | */
|
---|
| 541 | public void actionPerformed (ActionEvent event) {
|
---|
| 542 | if(!classifier_list.isSelectionEmpty ()) {
|
---|
| 543 | Classifier classifier = (Classifier) classifier_list.getSelectedValue ();
|
---|
| 544 | ArgumentConfiguration ac = new ArgumentConfiguration (classifier);
|
---|
| 545 | ac.addOKButtonActionListener (CollectionDesignManager.buildcol_change_listener);
|
---|
| 546 | if (ac.display ()) {
|
---|
| 547 | refresh (classifier);
|
---|
| 548 | }
|
---|
| 549 | ac.destroy ();
|
---|
| 550 | ac = null;
|
---|
| 551 | }
|
---|
| 552 | }
|
---|
| 553 | }
|
---|
| 554 |
|
---|
| 555 | /** listens for changes in the list selection and enables the configure and remove buttons if there is a selection, disables them if there is no selection */
|
---|
| 556 | private class ListListener
|
---|
| 557 | implements ListSelectionListener {
|
---|
| 558 |
|
---|
| 559 | public void valueChanged (ListSelectionEvent e) {
|
---|
| 560 | if (!e.getValueIsAdjusting ()) { // we get two events for one change in list selection - use the false one ( the second one)
|
---|
| 561 | if (classifier_list.isSelectionEmpty ()) {
|
---|
| 562 | move_up_button.setEnabled (false);
|
---|
| 563 | move_down_button.setEnabled (false);
|
---|
| 564 | configure.setEnabled (false);
|
---|
| 565 | remove.setEnabled (false);
|
---|
| 566 | }
|
---|
| 567 | else {
|
---|
| 568 | configure.setEnabled (true);
|
---|
| 569 | remove.setEnabled (true);
|
---|
| 570 | int selected_index = classifier_list.getSelectedIndex ();
|
---|
| 571 | move_up_button.setEnabled (selected_index !=0);
|
---|
| 572 | move_down_button.setEnabled (selected_index != model.getSize ()-1);
|
---|
| 573 | }
|
---|
| 574 | }
|
---|
| 575 | }
|
---|
| 576 | }
|
---|
| 577 |
|
---|
| 578 | /** Listens for actions apon the move buttons in the manager controls, and if detected calls the <i>moveClassifier()</i> method of the manager with the appropriate details. */
|
---|
| 579 | private class MoveListener
|
---|
| 580 | implements ActionListener {
|
---|
| 581 | /** Any implementation of <i>ActionListener</i> must include this method so that we can be informed when an action has occured on one of our target controls.
|
---|
| 582 | * @param event An <strong>ActionEvent</strong> containing information garnered from the control action.
|
---|
| 583 | */
|
---|
| 584 | public void actionPerformed (ActionEvent event) {
|
---|
| 585 | if(!classifier_list.isSelectionEmpty ()) {
|
---|
| 586 | Object object = classifier_list.getSelectedValue ();
|
---|
| 587 | if(object instanceof Classifier) {
|
---|
| 588 | Classifier classifier = (Classifier) object;
|
---|
| 589 | if(event.getSource () == move_up_button) {
|
---|
| 590 | moveClassifier (classifier, true, false);
|
---|
| 591 | }
|
---|
| 592 | else if(event.getSource () == move_down_button) {
|
---|
| 593 | moveClassifier (classifier, false, false);
|
---|
| 594 | }
|
---|
| 595 | classifier_list.setSelectedValue (classifier, true);
|
---|
| 596 | }
|
---|
| 597 | }
|
---|
| 598 | }
|
---|
| 599 | }
|
---|
| 600 |
|
---|
| 601 | /** This class listens for actions upon the remove button in the controls, and if detected calls the <i>removeClassifier()</i> method.
|
---|
| 602 | */
|
---|
| 603 | private class RemoveListener
|
---|
| 604 | implements ActionListener {
|
---|
| 605 | /** Any implementation of <i>ActionListener</i> must include this method so that we can be informed when an action has occured on one of our target controls.
|
---|
| 606 | * @param event An <strong>ActionEvent</strong> containing information garnered from the control action.
|
---|
| 607 | */
|
---|
| 608 | public void actionPerformed (ActionEvent event) {
|
---|
| 609 | if(classifier_list.isSelectionEmpty ()) {
|
---|
| 610 | remove.setEnabled (false);
|
---|
| 611 | return;
|
---|
| 612 | }
|
---|
| 613 | int selected_index = classifier_list.getSelectedIndex ();
|
---|
| 614 | Object selected_classifier = classifier_list.getSelectedValue ();
|
---|
| 615 | if (!(selected_classifier instanceof Classifier)) {
|
---|
| 616 | return; // what else could we have here???
|
---|
| 617 | }
|
---|
| 618 | removeClassifier ((Classifier)selected_classifier);
|
---|
| 619 |
|
---|
| 620 | if (selected_index >= classifier_list.getModel ().getSize ()) {
|
---|
| 621 | selected_index--;
|
---|
| 622 | }
|
---|
| 623 | if (selected_index >=0) {
|
---|
| 624 | classifier_list.setSelectedIndex (selected_index);
|
---|
| 625 | } else {
|
---|
| 626 | // no more classifiers in the list
|
---|
| 627 | remove.setEnabled (false);
|
---|
| 628 | }
|
---|
| 629 | }
|
---|
| 630 | }
|
---|
[4838] | 631 | }
|
---|
| 632 | }
|
---|