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: Katherine Don, Greenstone Digital Library, University of Waikato
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9 | *
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10 | * Copyright (C) 2006 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 | import java.awt.*;
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30 | import java.awt.event.*;
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31 | import java.util.*;
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32 | import javax.swing.*;
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33 | import javax.swing.event.*;
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34 | import javax.swing.undo.*;
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35 | import java.io.File;
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36 | import java.io.FileInputStream;
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37 | import java.io.FileOutputStream;
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38 | import java.io.BufferedReader;
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39 | import java.io.BufferedWriter;
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40 | import java.io.InputStreamReader;
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41 | import java.io.OutputStreamWriter;
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42 |
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43 | import org.greenstone.gatherer.Configuration;
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44 | import org.greenstone.gatherer.DebugStream;
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45 | import org.greenstone.gatherer.Dictionary;
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46 | import org.greenstone.gatherer.Gatherer;
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47 | import org.greenstone.gatherer.collection.CollectionManager;
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48 | import org.greenstone.gatherer.gui.DesignPaneHeader;
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49 | import org.greenstone.gatherer.gui.GLIButton;
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50 | import org.greenstone.gatherer.remote.RemoteGreenstoneServer;
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51 |
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52 |
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53 | public class MacrosManager {
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54 |
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55 | /** The controls used to modify the general options. */
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56 | private Control controls;
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57 | /** Constructor. */
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58 | public MacrosManager() {
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59 | }
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60 |
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61 |
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62 | /** Destructor. */
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63 | public void destroy() {
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64 | if (controls != null) {
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65 | controls.destroy();
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66 | controls = null;
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67 | }
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68 | }
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69 |
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70 | public void loseFocus() {
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71 | }
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72 |
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73 | public void gainFocus() {
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74 |
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75 | }
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76 | /** This class is resposible for generating the controls for the editing of general options.
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77 | * @return the Control for editing the general options
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78 | */
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79 | public Control getControls() {
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80 | if (controls == null) {
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81 | controls = new MacrosControl();
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82 | }
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83 | return controls;
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84 | }
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85 |
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86 |
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87 | /** Called when the detail mode has changed which in turn may cause several design elements to be available/hidden
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88 | * @param mode the new mode as an int
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89 | */
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90 | public void modeChanged(int mode) {
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91 |
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92 | }
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93 |
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94 |
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95 | private class MacrosControl
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96 | extends JPanel
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97 | implements Control, WindowFocusListener {
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98 |
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99 | JTextArea macros_textarea = null;
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100 | JButton undo_button = null;
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101 | JButton redo_button = null;
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102 | private final UndoManager undo = new UndoManager();
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103 | private boolean macros_changed = false;
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104 | public MacrosControl() {
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105 | super();
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106 | this.setComponentOrientation(Dictionary.getOrientation());
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107 |
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108 | JPanel header_pane = new DesignPaneHeader("CDM.GUI.Macros", "collectionspecificmacros");
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109 | JPanel main_pane = new JPanel();
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110 | main_pane.setComponentOrientation(Dictionary.getOrientation());
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111 | main_pane.setLayout(new BorderLayout());
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112 | macros_textarea = new JTextArea();
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113 | macros_textarea.setComponentOrientation(Dictionary.getOrientation());
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114 | macros_textarea.setBackground(Configuration.getColor("coloring.editable_background", false));
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115 | macros_textarea.setLineWrap(false);
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116 | macros_textarea.setWrapStyleWord(false);
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117 | macros_textarea.setToolTipText(Dictionary.get("CDM.MacrosManager.Editor_Tooltip"));
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118 | readMacroFile(); // load in the original contents
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119 | macros_textarea.getDocument().addDocumentListener(new EditorListener());
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120 |
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121 | // Listen for undo and redo events
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122 | macros_textarea.getDocument().addUndoableEditListener(new UndoableEditListener() {
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123 | public void undoableEditHappened(UndoableEditEvent evt) {
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124 | undo.addEdit(evt.getEdit());
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125 | }
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126 | });
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127 | macros_textarea.setCaretPosition(0);
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128 |
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129 | JPanel macros_pane = new JPanel();
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130 | macros_pane.setComponentOrientation(Dictionary.getOrientation());
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131 | macros_pane.setBorder(BorderFactory.createEmptyBorder(5,0,5,0));
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132 | macros_pane.setLayout(new BorderLayout());
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133 | macros_pane.add(new JScrollPane(macros_textarea), BorderLayout.CENTER);
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134 | undo_button = new GLIButton(Dictionary.get("General.Undo"), Dictionary.get("General.Undo_Tooltip"));
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135 | undo_button.setEnabled(false);
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136 | undo_button.addActionListener(new UndoListener());
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137 |
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138 | redo_button = new GLIButton(Dictionary.get("General.Redo"), Dictionary.get("General.Redo_Tooltip"));
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139 | redo_button.setEnabled(false);
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140 | redo_button.addActionListener(new RedoListener());
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141 |
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142 | JPanel button_pane = new JPanel();
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143 | button_pane.setComponentOrientation(Dictionary.getOrientation());
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144 | button_pane.setLayout(new GridLayout(1,2));
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145 | button_pane.add(undo_button);
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146 | button_pane.add(redo_button);
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147 |
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148 | main_pane.add(macros_pane, BorderLayout.CENTER);
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149 | main_pane.add(button_pane, BorderLayout.SOUTH);
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150 |
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151 | setBorder(BorderFactory.createEmptyBorder(0,5,0,0));
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152 | setLayout(new BorderLayout());
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153 | add(header_pane, BorderLayout.NORTH);
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154 | add(main_pane, BorderLayout.CENTER);
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155 | Gatherer.g_man.addWindowFocusListener(this);
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156 | }
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157 |
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158 | public void destroy() {
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159 | }
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160 |
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161 | public void loseFocus() {
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162 | if (macros_changed) {
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163 | writeMacroFile();
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164 | macros_changed = false;
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165 | }
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166 | }
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167 |
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168 | public void gainFocus() {
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169 | macros_textarea.grabFocus();
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170 | }
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171 |
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172 | public void windowGainedFocus(WindowEvent e) {
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173 | }
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174 |
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175 | public void windowLostFocus(WindowEvent e) {
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176 | if (macros_changed) {
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177 | writeMacroFile();
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178 | macros_changed = false;
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179 | }
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180 | }
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181 |
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182 | private void readMacroFile() {
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183 | macros_textarea.setText("");
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184 | File extra_dm = new File(CollectionManager.getLoadedCollectionMacrosDirectoryPath() + "extra.dm");
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185 |
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186 | if (extra_dm.exists()) {
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187 | try {
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188 | BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(extra_dm), "UTF-8"));
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189 |
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190 | String line;
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191 | while ((line = br.readLine()) != null) {
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192 | macros_textarea.append(line+"\n");
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193 | }
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194 |
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195 | br.close();
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196 | }
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197 | catch (Exception exception) {
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198 | DebugStream.printStackTrace(exception);
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199 | }
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200 | }
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201 | }
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202 |
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203 | private void writeMacroFile() {
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204 | File extra_dm_file = new File(CollectionManager.getLoadedCollectionMacrosDirectoryPath() + "extra.dm");
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205 | try {
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206 | if (!extra_dm_file.exists()) {
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207 | File parent_dir = extra_dm_file.getParentFile();
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208 | parent_dir.mkdirs();
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209 | extra_dm_file.createNewFile();
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210 | }
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211 |
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212 | BufferedWriter out = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(extra_dm_file), "UTF-8"));
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213 | String text = macros_textarea.getText();
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214 | out.write(text, 0, text.length());
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215 | out.newLine();
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216 | out.flush();
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217 | out.close();
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218 |
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219 | // If we're using a remote Greenstone server, upload the new extra.dm file
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220 | // This will return immediately, since we're on the event dispatch thread
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221 | // Users need to wait until the upload has finished before pressing Preview Collection!
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222 | if (Gatherer.isGsdlRemote) {
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223 | Gatherer.remoteGreenstoneServer.uploadCollectionFile(CollectionManager.getLoadedCollectionName(), extra_dm_file);
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224 | }
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225 | }
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226 | catch (Exception exception) {
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227 | DebugStream.printStackTrace(exception);
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228 | }
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229 | }
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230 |
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231 | private class EditorListener
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232 | implements DocumentListener {
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233 | public void changedUpdate(DocumentEvent e) {
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234 | macros_changed = true;
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235 | undo_button.setEnabled(true);
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236 | }
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237 |
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238 | public void insertUpdate(DocumentEvent e) {
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239 | macros_changed = true;
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240 | undo_button.setEnabled(true);
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241 | }
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242 |
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243 | public void removeUpdate(DocumentEvent e) {
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244 | macros_changed = true;
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245 | undo_button.setEnabled(true);
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246 | }
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247 |
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248 | }
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249 |
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250 | private class UndoListener
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251 | implements ActionListener {
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252 |
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253 | public void actionPerformed(ActionEvent event) {
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254 | try {
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255 | if (undo.canUndo()) {
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256 | int pos = macros_textarea.getCaretPosition();
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257 | undo.undo();
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258 | macros_textarea.setCaretPosition(pos-1);
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259 | macros_textarea.grabFocus();
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260 | redo_button.setEnabled(true);
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261 |
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262 | }
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263 | if (!undo.canUndo()){
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264 | undo_button.setEnabled(false);
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265 | }
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266 | else{
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267 | undo_button.setEnabled(true);
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268 | }
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269 | }
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270 | catch (Exception exception) {
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271 | DebugStream.printStackTrace(exception);
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272 | }
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273 | }
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274 | }
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275 |
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276 |
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277 | private class RedoListener
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278 | implements ActionListener {
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279 |
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280 | public void actionPerformed(ActionEvent evt) {
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281 | try {
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282 | if (undo.canRedo()) {
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283 | int pos = macros_textarea.getCaretPosition();
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284 | undo.redo();
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285 | macros_textarea.setCaretPosition(pos+1);
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286 | macros_textarea.grabFocus();
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287 | }
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288 | if (!undo.canRedo()){
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289 | redo_button.setEnabled(false);
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290 | }
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291 | else{
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292 | redo_button.setEnabled(true);
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293 | }
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294 | }
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295 | catch (Exception exception) {
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296 | DebugStream.printStackTrace(exception);
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297 | }
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298 | }
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299 | }
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300 | }
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301 | }
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