1 | /* |
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2 | * This program is free software; you can redistribute it and/or modify |
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3 | * it under the terms of the GNU General Public License as published by |
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4 | * the Free Software Foundation; either version 2 of the License, or |
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5 | * (at your option) any later version. |
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6 | * |
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7 | * This program is distributed in the hope that it will be useful, |
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8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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10 | * GNU General Public License for more details. |
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11 | * |
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12 | * You should have received a copy of the GNU General Public License |
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13 | * along with this program; if not, write to the Free Software |
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14 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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15 | */ |
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16 | |
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17 | /* |
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18 | * NumberNodeEditor.java |
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19 | * Copyright (C) 2006 Robert Jung |
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20 | * |
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21 | */ |
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22 | |
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23 | package weka.gui.ensembleLibraryEditor.tree; |
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24 | |
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25 | import java.awt.Color; |
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26 | import java.awt.Font; |
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27 | import java.awt.event.ActionEvent; |
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28 | import java.awt.event.ActionListener; |
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29 | import java.awt.event.ItemEvent; |
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30 | import java.awt.event.ItemListener; |
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31 | import java.beans.PropertyChangeEvent; |
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32 | import java.beans.PropertyChangeListener; |
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33 | import java.text.NumberFormat; |
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34 | |
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35 | import javax.swing.JButton; |
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36 | import javax.swing.JCheckBox; |
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37 | import javax.swing.JFormattedTextField; |
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38 | import javax.swing.JLabel; |
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39 | import javax.swing.JPanel; |
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40 | import javax.swing.UIManager; |
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41 | |
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42 | /** |
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43 | * This class is responsible for creating the number editor GUI to allow users |
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44 | * to specify ranges of numerical values. |
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45 | * |
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46 | * @author Robert Jung (mrbobjung@gmail.com) |
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47 | * @version $Revision: 1.1 $ |
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48 | */ |
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49 | public class NumberNodeEditor |
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50 | extends JPanel |
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51 | implements ActionListener, ItemListener, PropertyChangeListener { |
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52 | |
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53 | /** for serialization */ |
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54 | private static final long serialVersionUID = 3486848815982334460L; |
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55 | |
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56 | /** |
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57 | * the button that toggles the type of iterator that this node represents |
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58 | */ |
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59 | private JButton m_IteratorButton; |
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60 | |
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61 | /** the textField that allows editing of the number value */ |
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62 | private JFormattedTextField m_NumberField; |
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63 | |
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64 | /** the checkBox that allows thi snode to be selected/unselected */ |
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65 | private JCheckBox m_SelectedCheckBox; |
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66 | |
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67 | /** the label that prints the name of this node */ |
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68 | private JLabel m_Label; |
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69 | |
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70 | /** the colors to use */ |
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71 | private Color textForeground, textBackground; |
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72 | |
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73 | /** a reference to the node this editor is rendering */ |
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74 | private NumberNode m_Node; |
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75 | |
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76 | /** |
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77 | * The constructor builds a user interface based on the information queried |
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78 | * from the node passed in. Specifically the iteratorType, whether the node |
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79 | * is checkable, whether it is currently selected, it's current value, and |
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80 | * the name to print on the label. |
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81 | * |
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82 | * @param node the node the editor is for |
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83 | */ |
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84 | public NumberNodeEditor(NumberNode node) { |
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85 | |
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86 | this.m_Node = node; |
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87 | String name = node.getText(); |
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88 | Number value = node.getValue(); |
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89 | int iteratorType = node.getIteratorType(); |
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90 | boolean showCheckBox = node.getCheckable(); |
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91 | boolean selected = node.getSelected(); |
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92 | |
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93 | textForeground = UIManager.getColor("Tree.textForeground"); |
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94 | textBackground = UIManager.getColor("Tree.textBackground"); |
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95 | |
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96 | setForeground(textForeground); |
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97 | setBackground(textBackground); |
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98 | |
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99 | Font fontValue; |
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100 | fontValue = UIManager.getFont("Tree.font"); |
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101 | |
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102 | if (showCheckBox) { |
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103 | m_SelectedCheckBox = new JCheckBox(); |
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104 | m_SelectedCheckBox.setSelected(selected); |
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105 | m_SelectedCheckBox.setForeground(textForeground); |
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106 | m_SelectedCheckBox.setBackground(textBackground); |
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107 | m_SelectedCheckBox.addItemListener(this); |
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108 | add(m_SelectedCheckBox); |
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109 | } |
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110 | |
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111 | m_Label = new JLabel(name); |
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112 | if (fontValue != null) { |
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113 | m_Label.setFont(fontValue); |
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114 | } |
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115 | m_Label.setForeground(textForeground); |
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116 | m_Label.setBackground(textBackground); |
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117 | add(m_Label); |
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118 | |
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119 | if (iteratorType != NumberNode.NOT_ITERATOR) { |
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120 | updateIteratorButton(); |
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121 | m_IteratorButton.setForeground(textForeground); |
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122 | m_IteratorButton.setBackground(textBackground); |
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123 | add(m_IteratorButton); |
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124 | } |
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125 | |
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126 | NumberFormat numberFormat = null; |
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127 | try { |
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128 | numberFormat = node.getNumberFormat(); |
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129 | } catch (NumberClassNotFoundException e) { |
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130 | e.printStackTrace(); |
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131 | } |
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132 | |
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133 | m_NumberField = new JFormattedTextField(numberFormat); |
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134 | m_NumberField.setValue(value); |
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135 | m_NumberField.setColumns(10); |
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136 | m_NumberField.setForeground(textForeground); |
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137 | m_NumberField.setBackground(textBackground); |
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138 | |
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139 | m_NumberField.addPropertyChangeListener(this); |
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140 | |
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141 | add(m_NumberField); |
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142 | |
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143 | if (!selected && showCheckBox) { |
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144 | m_Label.setEnabled(false); |
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145 | if (m_IteratorButton != null) |
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146 | m_IteratorButton.setEnabled(false); |
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147 | m_NumberField.setEnabled(false); |
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148 | } |
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149 | } |
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150 | |
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151 | /** |
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152 | * This method provides a way for the ModelTreeNodeEditor to register an |
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153 | * actionListener with this editor. This way, after the user has done |
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154 | * something, the tree can update its editing state as well as the tree node |
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155 | * structure as necessary |
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156 | * |
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157 | * @param actionListener the listener to use |
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158 | */ |
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159 | public void setActionListener(ActionListener actionListener) { |
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160 | if (m_IteratorButton != null) |
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161 | m_IteratorButton.addActionListener(actionListener); |
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162 | } |
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163 | |
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164 | /** |
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165 | * This method provides a way for the ModelTreeNodeEditor to register an |
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166 | * itemListener with this editor. This way, after the user has done |
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167 | * something, the tree can update its editing state as well as the tree node |
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168 | * structure as necessary |
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169 | * |
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170 | * @param itemListener the listener to use |
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171 | */ |
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172 | public void setItemListener(ItemListener itemListener) { |
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173 | if (m_SelectedCheckBox != null) |
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174 | m_SelectedCheckBox.addItemListener(itemListener); |
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175 | } |
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176 | |
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177 | /** |
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178 | * This method provides a way for the ModelTreeNodeEditor to register a |
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179 | * PropertyListener with this editor. This way, after the user has done |
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180 | * something, the tree can update its editing state as well as the tree node |
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181 | * structure as necessary |
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182 | * |
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183 | * @param propertyChangeListener the listener to use |
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184 | */ |
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185 | public void setPropertyChangeListener( |
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186 | PropertyChangeListener propertyChangeListener) { |
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187 | if (m_NumberField != null) |
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188 | m_NumberField.addPropertyChangeListener(propertyChangeListener); |
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189 | } |
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190 | |
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191 | /** |
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192 | * This is a helper function that repaints the iterator toggling button |
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193 | * after an event. |
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194 | * |
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195 | */ |
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196 | private void updateIteratorButton() { |
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197 | |
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198 | if (m_Node.getIteratorType() == NumberNode.PLUS_EQUAL) { |
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199 | m_IteratorButton = new JButton("+="); |
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200 | m_IteratorButton.addActionListener(this); |
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201 | |
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202 | } else if (m_Node.getIteratorType() == NumberNode.TIMES_EQUAL) { |
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203 | m_IteratorButton = new JButton("*="); |
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204 | m_IteratorButton.addActionListener(this); |
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205 | |
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206 | } |
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207 | |
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208 | m_IteratorButton.repaint(); |
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209 | repaint(); |
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210 | } |
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211 | |
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212 | /** |
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213 | * This is the actionListener that while handle events from the JButton that |
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214 | * specifies the type of iterator. It simply updates both the label string |
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215 | * for the button and the iteratorType of the NumberNode |
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216 | * |
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217 | * @param e the event |
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218 | */ |
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219 | public void actionPerformed(ActionEvent e) { |
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220 | |
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221 | if (m_Node.getIteratorType() == NumberNode.PLUS_EQUAL) { |
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222 | m_Node.setIteratorType(NumberNode.TIMES_EQUAL); |
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223 | |
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224 | try { |
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225 | if ((m_Node.getValue()).equals(m_Node.getOneValue())) { |
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226 | m_Node.setValue(m_Node.getTwoValue()); |
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227 | updateIteratorButton(); |
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228 | } |
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229 | |
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230 | } catch (NumberClassNotFoundException e1) { |
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231 | e1.printStackTrace(); |
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232 | } |
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233 | |
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234 | } else if (m_Node.getIteratorType() == NumberNode.TIMES_EQUAL) { |
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235 | m_Node.setIteratorType(NumberNode.PLUS_EQUAL); |
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236 | try { |
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237 | if ((m_Node.getValue()).equals(m_Node.getTwoValue())) { |
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238 | m_Node.setValue(m_Node.getOneValue()); |
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239 | updateIteratorButton(); |
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240 | } |
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241 | |
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242 | } catch (NumberClassNotFoundException e1) { |
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243 | e1.printStackTrace(); |
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244 | } |
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245 | } |
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246 | } |
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247 | |
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248 | /** |
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249 | * This is the Listener that while handle events from the checkBox ,if this |
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250 | * node has one. Note that before we can select or deselect this node we |
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251 | * have to ask permission from this node's parent. (wow, what fitting |
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252 | * terminology). Anyway, the reason is that we cannot have an iterator node |
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253 | * selected if there is no max node selected - conversely we cannot have a |
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254 | * max node be deselected if the iterator node is selected. |
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255 | * |
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256 | * @param e the event |
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257 | */ |
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258 | public void itemStateChanged(ItemEvent e) { |
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259 | if (e.getStateChange() == ItemEvent.SELECTED) { |
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260 | |
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261 | PropertyNode parent = (PropertyNode) m_Node.getParent(); |
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262 | |
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263 | if (parent.canSelect(m_Node)) { |
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264 | |
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265 | m_Node.setSelected(true); |
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266 | |
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267 | m_Label.setEnabled(true); |
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268 | if (m_IteratorButton != null) |
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269 | m_IteratorButton.setEnabled(true); |
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270 | m_NumberField.setEnabled(true); |
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271 | } else { |
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272 | m_SelectedCheckBox.setSelected(false); |
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273 | } |
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274 | |
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275 | } else if (e.getStateChange() == ItemEvent.DESELECTED) { |
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276 | |
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277 | PropertyNode parent = (PropertyNode) m_Node.getParent(); |
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278 | |
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279 | if (parent.canDeselect(m_Node)) { |
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280 | |
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281 | m_Node.setSelected(false); |
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282 | |
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283 | m_Label.setEnabled(false); |
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284 | if (m_IteratorButton != null) |
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285 | m_IteratorButton.setEnabled(false); |
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286 | m_NumberField.setEnabled(false); |
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287 | |
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288 | } else { |
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289 | m_SelectedCheckBox.setSelected(true); |
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290 | } |
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291 | } |
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292 | } |
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293 | |
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294 | /** |
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295 | * This is the Listener that while handle events from the text box for this |
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296 | * node. It basically grabs the value from the text field and then casts it |
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297 | * to the correct type and sets the value of the node. |
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298 | * |
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299 | * @param evt the event |
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300 | */ |
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301 | public void propertyChange(PropertyChangeEvent evt) { |
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302 | |
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303 | Object source = evt.getSource(); |
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304 | |
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305 | if (source instanceof JFormattedTextField |
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306 | && evt.getPropertyName().equals("value") |
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307 | && (((JFormattedTextField) evt.getSource()).getValue() != null)) { |
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308 | |
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309 | Number newValue = null; |
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310 | |
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311 | Number value = m_Node.getValue(); |
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312 | |
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313 | JFormattedTextField field = (JFormattedTextField) evt.getSource(); |
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314 | |
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315 | Number fieldValue = (Number) field.getValue(); |
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316 | |
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317 | if (value instanceof Double) |
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318 | newValue = new Double(NumberNode.roundDouble((fieldValue.doubleValue()))); |
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319 | else if (value instanceof Integer) |
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320 | newValue = new Integer((fieldValue).intValue()); |
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321 | else if (value instanceof Float) |
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322 | newValue = new Float(NumberNode.roundFloat((fieldValue.floatValue()))); |
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323 | else if (value instanceof Long) |
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324 | newValue = new Long((fieldValue).longValue()); |
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325 | else { |
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326 | try { |
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327 | throw new NumberClassNotFoundException(value.getClass() |
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328 | + " not currently supported."); |
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329 | } catch (NumberClassNotFoundException e) { |
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330 | e.printStackTrace(); |
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331 | } |
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332 | } |
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333 | |
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334 | field.setValue(newValue); |
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335 | |
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336 | m_Node.setValue(newValue); |
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337 | } |
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338 | } |
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339 | } |
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