TarTool example source code file (MenuProperties.java)

This example TarTool source code file (MenuProperties.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - TarTool tags/keywords

actionlistener, awt, event, gui, item, jcomponent, jcomponent, jmenu, jmenu, jmenuitem, jpopupmenu, jpopupmenu, menu, menuproperties, object, string, string, swing

The TarTool MenuProperties.java source code

package com.ice.util;

import java.awt.event.ActionListener;

import javax.swing.JMenu;
import javax.swing.JPopupMenu;
import javax.swing.JComponent;
import javax.swing.JMenuItem;


public class
MenuProperties extends Object
	{
	static public JPopupMenu
    loadPopupMenu( String menuPropertyName, ActionListener listener )
		{
		JPopupMenu popup = new JPopupMenu();

		MenuProperties.addMenuItems( popup, menuPropertyName, listener );

		return popup;
		}

	static public void
	addGenericItem( JComponent menu, JComponent item )
		{
		if ( menu instanceof JMenu )
			{
			JMenu jm = (JMenu) menu;

			if ( item == null )
				jm.addSeparator();
			else
				jm.add( item );
			}
		else
			{
			JPopupMenu jp = (JPopupMenu) menu;

			if ( item == null )
				jp.addSeparator();
			else
				jp.add( item );
			}
		}

	static public void
	addMenuItems(
			JComponent menu, String menuPropertyName,
			ActionListener listener )
		{
		String[]	itemList;
		String		itemString;
		String		menuString;
		String		itemNameStr; 
		JMenuItem	mItem;

		menuString = 
			UserProperties.getProperty
				( "menu." + menuPropertyName, null );

		if ( menuString == null )
			{
			ICETracer.traceWithStack
				( "Menu definition property '"
					+ menuPropertyName + "' is not defined." );
			return;
			}

		itemList = StringUtilities.splitString( menuString, ":" );

		if ( itemList != null )
			{
			for ( int iIdx = 0 ; iIdx < itemList.length ; ++iIdx )
				{
				itemNameStr =
					"item." + menuPropertyName + "." + itemList[iIdx];

				itemString =
					UserProperties.getProperty( itemNameStr, null );

				if ( itemString == null )
					{
					ICETracer.traceWithStack
						( "Menu definition '" + menuPropertyName
							+ "' is missing item definition property '"
							+ itemNameStr + "'." );
					}
				else
					{
					int colonIdx = itemString.indexOf( ':' );

					if ( itemString.equals( "-" ) )
						{
						MenuProperties.addGenericItem( menu, null );
						}
					else if ( colonIdx < 0 )
						{
						ICETracer.traceWithStack
							( "Menu '" + menuPropertyName
								+ "' Item '" + itemNameStr
								+ "' has invalid definition." );
						}
					 else
						{
						String title =
							itemString.substring( 0, colonIdx );

						String command =
							itemString.substring( colonIdx + 1 );

						if ( command.equals( "@" ) )
							{
							JMenu subMenu = new JMenu( title );

							String subMenuName =
								menuPropertyName + "." + itemList[iIdx];

							MenuProperties.addMenuItems
								( subMenu, subMenuName, listener );

							MenuProperties.addGenericItem( menu, subMenu );
							}
						else if ( title.equals( "-" ) )
							{
							MenuProperties.addGenericItem( menu, null );
							}
						else
							{
							mItem = new JMenuItem( title );

							if ( listener != null )
								{
								mItem.addActionListener( listener );
								mItem.setActionCommand( command );
								}

							MenuProperties.addGenericItem( menu, mItem );
							}
						}
					} // itemString != null
				} // foreach item
			} // itemList != null
		}

	}