/*******************************************************************************
* Copyright (c) 2016 Weasis Team and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Nicolas Roduit - initial API and implementation
*******************************************************************************/
package org.weasis.core.api.gui.util;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import javax.swing.ButtonGroup;
import javax.swing.ComboBoxModel;
import javax.swing.DefaultComboBoxModel;
import javax.swing.Icon;
import javax.swing.JToggleButton;
import javax.swing.event.ListDataEvent;
public class JToogleButtonGroup<T> implements ActionListener, ComboBoxModelAdapter<T> {
protected final List<JToggleButton> itemList;
protected final HashMap<JToggleButton, Object> map = new HashMap<>();
protected ComboBoxModel<T> dataModel;
public JToogleButtonGroup() {
this.itemList = new ArrayList<>();
}
private void init() {
itemList.clear();
Object selectedItem = dataModel.getSelectedItem();
ButtonGroup group = new ButtonGroup();
for (int i = 0; i < dataModel.getSize(); i++) {
Object object = dataModel.getElementAt(i);
Icon icon = null;
if (object instanceof GUIEntry) {
icon = ((GUIEntry) object).getIcon();
}
JToggleButton b = new JToggleButton(icon);
b.setToolTipText(object.toString());
map.put(b, object);
b.setSelected(object == selectedItem);
group.add(b);
b.addActionListener(this);
itemList.add(b);
}
}
@Override
public void setModel(ComboBoxModel<T> dataModel) {
boolean changeListener = dataModel != null && dataModel != this.dataModel;
if (this.dataModel != null) {
this.dataModel.removeListDataListener(this);
}
this.dataModel = dataModel == null ? new DefaultComboBoxModel<>() : dataModel;
init();
if (changeListener) {
this.dataModel.addListDataListener(this);
}
}
public JToggleButton[] getJToggleButtonList() {
return itemList.toArray(new JToggleButton[itemList.size()]);
}
@Override
public void contentsChanged(ListDataEvent e) {
setSelected(dataModel.getSelectedItem());
}
@Override
public void intervalAdded(ListDataEvent e) {
// Do nothing
}
@Override
public void intervalRemoved(ListDataEvent e) {
// Do nothing
}
@Override
public void actionPerformed(ActionEvent e) {
if (e.getSource() instanceof JToggleButton) {
JToggleButton item = (JToggleButton) e.getSource();
if (item.isSelected()) {
dataModel.setSelectedItem(map.get(item));
}
}
}
public void setSelected(Object selected) {
if (selected != null) {
for (int i = 0; i < itemList.size(); i++) {
JToggleButton item = itemList.get(i);
Object itemObj = map.get(item);
if (itemObj == selected) {
item.setSelected(true);// Do not trigger actionPerformed
dataModel.setSelectedItem(itemObj);
return;
}
}
}
}
public int getSelectedIndex() {
Object sObject = dataModel.getSelectedItem();
int i, c;
Object obj;
for (i = 0, c = dataModel.getSize(); i < c; i++) {
obj = dataModel.getElementAt(i);
if (obj != null && obj.equals(sObject)) {
return i;
}
}
return -1;
}
public Object getSelectedItem() {
return dataModel.getSelectedItem();
}
@Override
public void setEnabled(boolean enabled) {
for (int i = 0; i < itemList.size(); i++) {
itemList.get(i).setEnabled(enabled);
}
}
}