/*
* Copyright (c) 2003, KNOPFLERFISH project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* - Neither the name of the KNOPFLERFISH project nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.knopflerfish.bundle.desktop.swing;
import java.awt.Component;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.util.Enumeration;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;
import java.util.Vector;
import javax.swing.AbstractButton;
import javax.swing.ButtonGroup;
import javax.swing.JMenu;
import javax.swing.JRadioButtonMenuItem;
import javax.swing.LookAndFeel;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
/**
** A menu that handles Look & Feel changes. for a Java GUI.
**
** This menu contains radio button menu items, one for each look and
** feel returned by the method UIManager.getInstalledLookAndFeels.
** The name of the menu item is the name of the look and feel and the
** action command is the full class name of the JAva class
** implementing the look and feel.
**
** @author Gunnar Ekolin, Gatespace AB
** @version $Revision: 1.2 $
**/
public class LookAndFeelMenu
extends JMenu
implements ItemListener
{
final ButtonGroup lfGroup = new ButtonGroup();
// Component root = null;
LFManager lfManager;
/**
* <tt>setRoot</tt> must be called manually when the owning frame is
* up and visible.
*/
public LookAndFeelMenu( final String menuName, LFManager lfManager ) {
super( menuName );
id++;
this.lfManager = lfManager;
final LookAndFeel currentLF = UIManager.getLookAndFeel();
final String currentLFName = currentLF!=null ? currentLF.getName() : null;
final UIManager.LookAndFeelInfo[] iLF
= UIManager.getInstalledLookAndFeels();
Vector classes = new Vector();
Vector names = new Vector();
for(Enumeration e = lfManager.customLF.keys(); e.hasMoreElements(); ) {
String className = (String)e.nextElement();
LookAndFeel lf = (LookAndFeel)lfManager.customLF.get(className);
String name = lf.getName();
// Check if custom LF is included in installed LFs
boolean bIncluded = false;
for (int i=0; i < iLF.length; i++) {
if(iLF[i].getClassName().equals(className)) {
bIncluded = true;
break;
}
}
// If not included, add to my list
if(!bIncluded) {
classes.addElement(className);
names.addElement(name);
}
}
// Add all installed LFs
for (int i=0; i<iLF.length; i++) {
{
classes.addElement(iLF[i].getClassName());
names.addElement(iLF[i].getName());
}
}
// Create menu
for (int i=0; i<classes.size(); i++) {
String className = (String)classes.elementAt(i);
String name = (String)names.elementAt(i);
JRadioButtonMenuItem rbMenuItem =
(JRadioButtonMenuItem) add( new JRadioButtonMenuItem( name ) );
rbMenuItem.setActionCommand( className );
/*
rbMenuItem.setAccelerator
( KeyStroke.getKeyStroke( KeyEvent.VK_0+ i, ActionEvent.ALT_MASK ) );
*/
rbMenuItem.getAccessibleContext().setAccessibleDescription
("The look and feel option for '"+name+"'.");
rbMenuItem.setSelected( name.equals( currentLFName ) );
rbMenuItem.addItemListener( this );
lfGroup.add( rbMenuItem );
}
}//LookAndFeelMenu
Set roots = new HashSet();
void addRoot(Component root) {
roots.add(root);
}
static int id = 0;
public String toString() {
return "LookAndFeelMenu[id=" + id + "]";
}
/** Activate selected L&F */
public void itemStateChanged(ItemEvent e) {
/*
if(root == null) {
Activator.log.warn("No root component set in LookAndFeelMenu");
}
*/
//Ignore all events but selection.
if (e.getStateChange() != ItemEvent.SELECTED) return;
// Change to wait cursor
/*
if (root!=null) {
root.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
}
*/
final JRadioButtonMenuItem rb = (JRadioButtonMenuItem) e.getSource();
final String newLFClassName = rb.getActionCommand();
final String newLFName = rb.getText();
final String currentLFClassName = UIManager.getLookAndFeel().getName();
LookAndFeel cLF = (LookAndFeel)lfManager.customLF.get(newLFClassName);
if(cLF != null) { // First, check if it any of the custom LFs
try {
Activator.log.debug("set custom LF classloader to" + cLF.getClass().getClassLoader());
UIManager.getLookAndFeelDefaults().put("ClassLoader", cLF.getClass().getClassLoader());
Activator.log.debug("set custom LF " + newLFClassName);
UIManager.setLookAndFeel(cLF);
for(Iterator it = roots.iterator(); it.hasNext();) {
Component root = (Component)it.next();
SwingUtilities.updateComponentTreeUI( root );
}
} catch (Exception ex) {
Activator.log.error("Failed to set LF " + newLFClassName, ex);
}
} else { // Otherwise, go for one of the installed LFs
if (newLFClassName!=null && !newLFClassName.equals(currentLFClassName)) {
try {
Activator.log.debug("set installed LF " + newLFClassName);
UIManager.setLookAndFeel(newLFClassName);
try {
for(Iterator it = roots.iterator(); it.hasNext();) {
Component root = (Component)it.next();
SwingUtilities.updateComponentTreeUI( root );
}
} catch (NullPointerException npe) {
Activator.log.error
( "Unexpected error while applying new look and feel", npe);
}
} catch (UnsupportedLookAndFeelException exc) {
rb.setEnabled( false );
Activator.log.error( "Unsupported LookAndFeel: " + newLFName
+" ("+newLFClassName+")", exc );
// Fallback: Set L&F to cross platform L&F
Activator.log.error( "Reverting to the cross platform LookAndFeel." );
final String cpLFcn = UIManager.getCrossPlatformLookAndFeelClassName();
// Find the menu item with the cross platform L&F and select it
for (Enumeration lfBEnum = lfGroup.getElements();
lfBEnum.hasMoreElements(); ) {
final AbstractButton ab =(AbstractButton)lfBEnum.nextElement();
if (cpLFcn.equals( ab.getActionCommand() )) {
SwingUtilities.invokeLater( new Runnable(){
public void run() { ab.setSelected(true); }} );
break;
}
}
} catch (Exception exc) {
rb.setEnabled(false);
Activator.log.error("Could not load LookAndFeel: " +rb.getText(), exc);
}
} else {
// Selected current LF, noop
}
}
/*
if(root != null) {
root.setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
}
*/
}
}// class LookAndFeelMenu