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The Waikato Environment for Knowledge Analysis (WEKA), a machine
learning workbench. This version represents the developer version, the
"bleeding edge" of development, you could say. New functionality gets added
to this version.
/*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see " +
"can be used to specify the first, last or specific index " +
"of the label to use respectively.");
setLayout(new BorderLayout());
add(new javax.swing.JLabel("ClassValuePickerCustomizer"),
BorderLayout.NORTH);
m_holderP.setLayout(new BorderLayout());
m_holderP.setBorder(BorderFactory.createTitledBorder("Choose class value"));
m_holderP.setToolTipText("Class label. /first, /last and / " +
"can be used to specify the first, last or specific index " +
"of the label to use respectively.");
m_holderP.add(m_ClassValueCombo, BorderLayout.CENTER);
m_ClassValueCombo.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if (m_classValuePicker != null) {
m_classValuePicker.
setClassValue(m_ClassValueCombo.getSelectedItem().toString());
m_modified = true;
}
}
});
add(m_messageLabel, BorderLayout.CENTER);
addButtons();
}
private void addButtons() {
JButton okBut = new JButton("OK");
JButton cancelBut = new JButton("Cancel");
JPanel butHolder = new JPanel();
butHolder.setLayout(new GridLayout(1, 2));
butHolder.add(okBut);
butHolder.add(cancelBut);
add(butHolder, BorderLayout.SOUTH);
okBut.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if (m_modifyListener != null) {
m_modifyListener.setModifiedStatus(ClassValuePickerCustomizer.this,
m_modified);
}
if (m_textBoxEntryMode) {
m_classValuePicker.setClassValue(m_valueTextBox.getText().trim());
}
if (m_parent != null) {
m_parent.dispose();
}
}
});
cancelBut.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
m_classValuePicker.setClassValue(m_backup);
customizerClosing();
if (m_parent != null) {
m_parent.dispose();
}
}
});
}
private void setupTextBoxSelection() {
m_textBoxEntryMode = true;
JPanel holderPanel = new JPanel();
holderPanel.setLayout(new BorderLayout());
holderPanel.setBorder(BorderFactory
.createTitledBorder("Specify class label"));
JLabel label = new JLabel("Class label ", SwingConstants.RIGHT);
holderPanel.add(label, BorderLayout.WEST);
m_valueTextBox = new JTextField(15);
m_valueTextBox.setToolTipText("Class label. /first, /last and / " +
"can be used to specify the first, last or specific index " +
"of the label to use respectively.");
holderPanel.add(m_valueTextBox, BorderLayout.CENTER);
JPanel holder2 = new JPanel();
holder2.setLayout(new BorderLayout());
holder2.add(holderPanel, BorderLayout.NORTH);
add(holder2, BorderLayout.CENTER);
String existingClassVal = m_classValuePicker.getClassValue();
if (existingClassVal != null) {
m_valueTextBox.setText(existingClassVal);
}
}
private void setUpValueSelection(Instances format) {
if (format.classIndex() < 0 || format.classAttribute().isNumeric()) {
// cant do anything in this case
m_messageLabel.setText((format.classIndex() < 0) ?
"EROR: no class attribute set" : "ERROR: class is numeric");
return;
}
if (m_displayValNames == false) {
remove(m_messageLabel);
}
m_textBoxEntryMode = false;
if (format.classAttribute().numValues() == 0) {
// loader may not be able to give us the set of legal
// values for a nominal attribute until it has read
// the data (e.g. database loader or csv loader).
// In this case we'll use a text box and the user
// can enter the class value.
setupTextBoxSelection();
validate();
repaint();
return;
}
String existingClassVal = m_classValuePicker.getClassValue();
String existingCopy = existingClassVal;
if (existingClassVal == null) {
existingClassVal = "";
}
int classValIndex = format.classAttribute().indexOfValue(existingClassVal);
// do we have a special (last, first or number)
// if (existingClassVal.startsWith("/")) {
// existingClassVal = existingClassVal.substring(1);
// if (existingClassVal.equalsIgnoreCase("first")) {
// classValIndex = 0;
// } else if (existingClassVal.equalsIgnoreCase("last")) {
// classValIndex = format.classAttribute().numValues() - 1;
// } else {
// // try and parse as a number
// classValIndex = Integer.parseInt(existingClassVal);
// classValIndex--;
// }
// }
// if (classValIndex < 0) {
// classValIndex = 0;
// }
String[] attribValNames = new String[format.classAttribute().numValues()];
for (int i = 0; i < attribValNames.length; i++) {
attribValNames[i] = format.classAttribute().value(i);
}
m_ClassValueCombo.setModel(new DefaultComboBoxModel(attribValNames));
if (attribValNames.length > 0) {
// if (existingClassVal < attribValNames.length) {
if (classValIndex >= 0) {
m_ClassValueCombo.setSelectedIndex(classValIndex);
} else {
String toSet = existingCopy != null ? existingCopy : attribValNames[0];
m_ClassValueCombo.setSelectedItem(toSet);
}
// }
}
if (m_displayValNames == false) {
add(m_holderP, BorderLayout.CENTER);
m_displayValNames = true;
}
validate();
repaint();
}
/**
* Set the bean to be edited
*
* @param object an Object value
*/
@Override
public void setObject(Object object) {
if (m_classValuePicker != (ClassValuePicker) object) {
// remove ourselves as a listener from the old ClassvaluePicker (if
// necessary)
/*
* if (m_classValuePicker != null) {
* m_classValuePicker.removeDataFormatListener(this); }
*/
m_classValuePicker = (ClassValuePicker) object;
// add ourselves as a data format listener
// m_classValuePicker.addDataFormatListener(this);
if (m_classValuePicker.getConnectedFormat() != null) {
setUpValueSelection(m_classValuePicker.getConnectedFormat());
}
m_backup = m_classValuePicker.getClassValue();
}
}
@Override
public void customizerClosing() {
// remove ourselves as a listener from the ClassValuePicker (if necessary)
// if (m_classValuePicker != null) {
// System.out.println("Customizer deregistering with class value picker");
// m_classValuePicker.removeDataFormatListener(this);
// }
m_classValuePicker.setClassValue(m_backup);
}
/*
* public void newDataFormat(DataSetEvent dse) { if (dse.getDataSet() != null)
* { setUpValueSelection(m_classValuePicker.getConnectedFormat()); } else {
* setUpNoCustPossible(); } }
*/
/**
* Add a property change listener
*
* @param pcl a PropertyChangeListener value
*/
@Override
public void addPropertyChangeListener(PropertyChangeListener pcl) {
m_pcSupport.addPropertyChangeListener(pcl);
}
/**
* Remove a property change listener
*
* @param pcl a PropertyChangeListener value
*/
@Override
public void removePropertyChangeListener(PropertyChangeListener pcl) {
m_pcSupport.removePropertyChangeListener(pcl);
}
@Override
public void setModifiedListener(ModifyListener l) {
m_modifyListener = l;
}
@Override
public void setParentWindow(Window parent) {
m_parent = parent;
}
}