org.nuiton.jaxx.runtime.swing.JAXXButtonGroup Maven / Gradle / Ivy
/*
* #%L
* JAXX :: Runtime
* %%
* Copyright (C) 2008 - 2017 CodeLutin
* %%
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser 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 Lesser Public License for more details.
*
* You should have received a copy of the GNU General Lesser Public
* License along with this program. If not, see
* .
* #L%
*/
package org.nuiton.jaxx.runtime.swing;
import javax.swing.AbstractButton;
import javax.swing.ButtonGroup;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import javax.swing.event.EventListenerList;
import java.beans.PropertyChangeListener;
import java.beans.PropertyChangeSupport;
import java.util.Enumeration;
public class JAXXButtonGroup extends ButtonGroup {
public static final String SELECTED_VALUE_PROPERTY = "selectedValue";
public static final String BUTTON8GROUP_CLIENT_PROPERTY = "$buttonGroup";
public static final String VALUE_CLIENT_PROPERTY = "$value";
public static final String SELECTED_TIP_CLIENT_PROPERTY = "$selected.toolTipText";
public static final String NOT_SELECTED_TIP_CLIENT_PROPERTY = "$not.selected.toolTipText";
protected final EventListenerList listenerList = new EventListenerList();
private PropertyChangeSupport propertyChangeSupport;
private transient Object selectedValue;
protected boolean useToolTipText;
protected transient ChangeEvent changeEvent = new ChangeEvent(this);
private final transient ChangeListener changeListener = new ChangeListener() {
@Override
public void stateChanged(ChangeEvent e) {
updateSelectedValue();
if (useToolTipText) {
updateToolTipText();
}
}
};
private static final long serialVersionUID = 1L;
@Override
public void add(AbstractButton button) {
super.add(button);
button.addChangeListener(changeListener);
updateSelectedValue();
}
@Override
public void remove(AbstractButton button) {
super.remove(button);
button.removeChangeListener(changeListener);
updateSelectedValue();
}
public void updateSelectedValue() {
Enumeration e = getElements();
while (e.hasMoreElements()) {
AbstractButton button = e.nextElement();
if (button.isSelected()) {
Object buttonValue = button.getClientProperty(VALUE_CLIENT_PROPERTY);
if (buttonValue != getSelectedValue()) {
setSelectedValue(buttonValue);
}
}
}
}
public void updateToolTipText() {
Enumeration e = getElements();
while (e.hasMoreElements()) {
AbstractButton button = e.nextElement();
String key = button.isSelected() ? SELECTED_TIP_CLIENT_PROPERTY : NOT_SELECTED_TIP_CLIENT_PROPERTY;
button.setToolTipText((String) button.getClientProperty(key));
}
}
public boolean isUseToolTipText() {
return useToolTipText;
}
public Object getSelectedValue() {
return selectedValue;
}
public AbstractButton getSelectedButton() {
Enumeration e = getElements();
while (e.hasMoreElements()) {
AbstractButton button = e.nextElement();
if (button.isSelected()) {
return button;
}
}
return null;
}
public AbstractButton getButton(Object value) {
Enumeration e = getElements();
while (e.hasMoreElements()) {
AbstractButton button = e.nextElement();
Object buttonValue = button.getClientProperty(VALUE_CLIENT_PROPERTY);
if (value.equals(buttonValue)) {
return button;
}
}
return null;
}
public void setSelectedValue(Object value) {
Object oldValue = getSelectedValue();
this.selectedValue = value;
firePropertyChange(oldValue);
}
public void setUseToolTipText(boolean useToolTipText) {
this.useToolTipText = useToolTipText;
}
public void setSelectedButton(Object value) {
setSelectedValue(value);
if (value == null) {
Enumeration e = getElements();
while (e.hasMoreElements()) {
AbstractButton button = e.nextElement();
setSelected(button.getModel(), false);
}
return;
}
Enumeration e = getElements();
while (e.hasMoreElements()) {
AbstractButton button = e.nextElement();
Object buttonValue = button.getClientProperty(VALUE_CLIENT_PROPERTY);
if (value.equals(buttonValue)) {
button.setSelected(true);
break;
}
}
}
protected PropertyChangeSupport getPropertyChangeSupport() {
if (propertyChangeSupport == null) {
propertyChangeSupport = new PropertyChangeSupport(this);
}
return propertyChangeSupport;
}
public void addPropertyChangeListener(PropertyChangeListener listener) {
getPropertyChangeSupport().addPropertyChangeListener(listener);
}
public void addPropertyChangeListener(String property, PropertyChangeListener listener) {
getPropertyChangeSupport().addPropertyChangeListener(property, listener);
}
public void removePropertyChangeListener(PropertyChangeListener listener) {
getPropertyChangeSupport().removePropertyChangeListener(listener);
}
public void removePropertyChangeListener(String property, PropertyChangeListener listener) {
getPropertyChangeSupport().removePropertyChangeListener(property, listener);
}
private void firePropertyChange(Object oldValue) {
if (propertyChangeSupport != null) {
getPropertyChangeSupport().firePropertyChange(SELECTED_VALUE_PROPERTY,
oldValue, getSelectedValue());
}
fireStateChanged();
}
/**
* Adds a ChangeListener to the button.
*
* @param l the listener to be added
*/
public void addChangeListener(ChangeListener l) {
listenerList.add(ChangeListener.class, l);
}
/**
* Removes a ChangeListener from the button.
*
* @param l the listener to be removed
*/
public void removeChangeListener(ChangeListener l) {
listenerList.remove(ChangeListener.class, l);
}
/**
* Returns an array of all the ChangeListeners added
* to this AbstractButton with addChangeListener().
*
* @return all of the ChangeListeners added or an empty
* array if no listeners have been added
* @since 1.4
*/
public ChangeListener[] getChangeListeners() {
return listenerList.getListeners(ChangeListener.class);
}
/**
* Notifies all listeners that have registered interest for
* notification on this event type. The event instance
* is lazily created.
*
* @see EventListenerList
*/
protected void fireStateChanged() {
// Guaranteed to return a non-null array
Object[] listeners = listenerList.getListenerList();
// Process the listeners last to first, notifying
// those that are interested in this event
for (int i = listeners.length - 2; i >= 0; i -= 2) {
if (listeners[i] == ChangeListener.class) {
// Lazily create the event:
if (changeEvent == null) {
changeEvent = new ChangeEvent(this);
}
((ChangeListener) listeners[i + 1]).stateChanged(changeEvent);
}
}
}
}