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/**
* DataCleaner (community edition)
* Copyright (C) 2014 Free Software Foundation, Inc.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* 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 Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.datacleaner.widgets.properties;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.lang.reflect.Array;
import java.util.ArrayList;
import java.util.Collection;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import org.apache.commons.lang.ArrayUtils;
import org.datacleaner.descriptors.ConfiguredPropertyDescriptor;
import org.datacleaner.job.builder.ComponentBuilder;
import org.datacleaner.panels.DCPanel;
import org.datacleaner.util.WidgetFactory;
import org.datacleaner.widgets.DCCheckBox;
import org.datacleaner.widgets.DCCheckBox.Listener;
import org.jdesktop.swingx.HorizontalLayout;
import org.jdesktop.swingx.VerticalLayout;
/**
* Abstract implementation of the {@link PropertyWidget} interface, for array
* properties that are represented using a list of checkboxes.
*
* @param
*/
public abstract class AbstractMultipleCheckboxesPropertyWidget extends AbstractPropertyWidget {
private final Listener _changeListener = (item, selected) -> fireValueChanged();
private final Map> _checkBoxes;
private final ActionListener _selectAllListener = new ActionListener() {
@Override
public void actionPerformed(final ActionEvent e) {
for (final JCheckBox cb : _checkBoxes.values()) {
if (cb.isEnabled()) {
cb.setSelected(true);
}
}
fireValueChanged();
}
};
private final ActionListener _selectNoneListener = new ActionListener() {
@Override
public void actionPerformed(final ActionEvent e) {
for (final JCheckBox cb : _checkBoxes.values()) {
cb.setSelected(false);
}
fireValueChanged();
}
};
private final Class _itemClass;
private final DCPanel _buttonPanel;
private final DCCheckBox _notAvailableCheckBox;
public AbstractMultipleCheckboxesPropertyWidget(final ComponentBuilder componentBuilder,
final ConfiguredPropertyDescriptor propertyDescriptor, final Class itemClass) {
super(componentBuilder, propertyDescriptor);
_itemClass = itemClass;
_checkBoxes = new LinkedHashMap<>();
setLayout(new VerticalLayout(2));
_notAvailableCheckBox = new DCCheckBox<>(getNotAvailableText(), false);
_notAvailableCheckBox.setOpaque(false);
_notAvailableCheckBox.setEnabled(false);
_buttonPanel = createButtonPanel();
add(_buttonPanel);
}
private void updateVisibility() {
_buttonPanel.setVisible(_checkBoxes.size() > 3);
if (_checkBoxes.isEmpty()) {
add(_notAvailableCheckBox);
} else {
remove(_notAvailableCheckBox);
}
}
protected DCPanel createButtonPanel() {
final DCPanel buttonPanel = new DCPanel();
buttonPanel.setLayout(new HorizontalLayout(2));
final JButton selectAllButton = WidgetFactory.createDefaultButton("Select all");
selectAllButton.addActionListener(_selectAllListener);
buttonPanel.add(selectAllButton);
final JButton selectNoneButton = WidgetFactory.createDefaultButton("Select none");
selectNoneButton.addActionListener(_selectNoneListener);
buttonPanel.add(selectNoneButton);
return buttonPanel;
}
public void initialize(final E[] values) {
if (values != null) {
// add all registered values
for (final E item : values) {
addCheckBox(item, true);
}
}
// add all available checkboxes
final E[] availableValues = getAvailableValues();
for (final E item : availableValues) {
addCheckBox(item, isEnabled(item, values));
}
updateVisibility();
}
protected JCheckBox[] getCheckBoxes() {
return _checkBoxes.values().toArray(new JCheckBox[_checkBoxes.size()]);
}
protected abstract E[] getAvailableValues();
/**
* Gets the text for an optional disabled checkbox in case no items are
* available.
*
* @return
*/
protected abstract String getNotAvailableText();
protected JCheckBox addCheckBox(final E item, final boolean checked) {
final String name = getName(item);
DCCheckBox checkBox = _checkBoxes.get(name);
if (checkBox != null) {
checkBox.setSelected(checked);
return checkBox;
}
checkBox = new DCCheckBox<>(name, checked);
checkBox.setValue(item);
checkBox.setOpaque(false);
checkBox.addListener(_changeListener);
_checkBoxes.put(name, checkBox);
add(checkBox);
updateVisibility();
updateUI();
return checkBox;
}
protected void editCheckBox(final E oldvalue, final E newValue) {
final String name = getName(oldvalue);
final DCCheckBox checkBox = _checkBoxes.get(name);
if (checkBox != null) {
_checkBoxes.remove(name);
checkBox.addListener(_changeListener);
final boolean isSelected = checkBox.isSelected();
checkBox.setValue(newValue);
checkBox.setSelected(isSelected, true);
_checkBoxes.put(name, checkBox);
add(checkBox);
// 'fireValueChanged' changes the value in the component builder. Otherwise the listener
// is activated at the later point(when the window is opened again) *
fireValueChanged();
} else {
addCheckBox(newValue, true);
}
updateVisibility();
updateUI();
}
protected void removeCheckBox(final E item) {
final DCCheckBox checkBox = _checkBoxes.remove(getName(item));
if (checkBox != null) {
remove(checkBox);
}
updateVisibility();
}
private boolean isEnabled(final E value, final E[] enabledValues) {
if (enabledValues == null || enabledValues.length == 0) {
return false;
}
for (final E currentValue : enabledValues) {
if (currentValue.equals(value)) {
return true;
}
}
return false;
}
@Override
public boolean isSet() {
for (final JCheckBox checkBox : getCheckBoxes()) {
if (checkBox.isSelected()) {
return true;
}
}
return false;
}
@Override
public E[] getValue() {
final List result = new ArrayList<>();
final Collection> checkBoxes = _checkBoxes.values();
for (final DCCheckBox cb : checkBoxes) {
if (cb.isSelected()) {
result.add(cb.getValue());
}
}
@SuppressWarnings("unchecked") final E[] array = (E[]) Array.newInstance(_itemClass, result.size());
return result.toArray(array);
}
@Override
protected void setValue(final E[] values) {
// if checkBoxes is empty it means that the value is being set before
// initializing the widget. This can occur in subclasses and automatic
// creating of checkboxes should be done.
if (_checkBoxes.isEmpty() && values != null) {
for (final E value : values) {
addCheckBox(value, true);
}
}
// update selections in checkboxes
for (final DCCheckBox cb : _checkBoxes.values()) {
if (ArrayUtils.contains(values, cb.getValue())) {
cb.setSelected(true);
} else {
cb.setSelected(false);
}
}
updateVisibility();
}
protected abstract String getName(E item);
}
