//  MenuDemoWithToolbarApplication.java  (c) 2006 Kari Laitinen

//  http://www.naturalprogramming.com

//  2006-11-26  File created.
//  2006-11-26  Last modification.

//  This program is a modified version of MenuDemoApplication.java.
//  This version provides a toolbar in addition to the menus.

//  See notes at the end of this file.

import java.awt.* ;
import java.awt.event.*;

import javax.swing.* ;


class MenuDemoFrameWithToolbar extends JFrame implements ActionListener
{
   //  The following is an inner class whose objects represent the
   //  activities that can be carried out through the toolbar.
   //  An inner class is a class inside another class.
   //  It is possible to access the members of the outer class
   //  from an inner class method.

   class ToolbarAction extends AbstractAction
   {
      public ToolbarAction( String action_name )
      {
         putValue( Action.NAME, action_name ) ;
      }

      //  The following actionPerformed() method is called when the
      //  toolbar buttons are pressed. Here we make the program behave as if
      //  selections were made via the menus. The text on the screen will
      //  not change when the toolbar buttons are pressed.

      public void actionPerformed( ActionEvent event )
      {
         if ( this  ==  toolbar_small_text_action )
         {
            small_text_menu_item.setSelected( true ) ;
         }
         else if ( this  ==  toolbar_medium_text_action )
         {
            medium_text_menu_item.setSelected( true ) ;
         }
         else if ( this  ==  toolbar_large_text_action )
         {
            large_text_menu_item.setSelected( true ) ;
         }
         else if ( this  ==  toolbar_cyan_background_action )
         {
            if ( cyan_background_menu_item.isSelected() )
            {
               cyan_background_menu_item.setSelected( false ) ;
               getContentPane().setBackground( Color.white ) ;
            }
            else
            {
               cyan_background_menu_item.setSelected( true ) ;
               getContentPane().setBackground( Color.cyan ) ;
            }
         }
         else if ( this  ==  toolbar_quit_action )
         {
            setVisible( false ) ;
            System.exit( 0 ) ;
         }

         repaint() ;
      }
   }

   static final int WINDOW_WIDTH   =  500 ;
   static final int WINDOW_HEIGHT  =  400 ;

   JMenuItem  file_open_menu_item  =  new  JMenuItem( "Open" ) ;
   JMenuItem  file_save_menu_item  =  new  JMenuItem( "Save" ) ;
   JMenuItem  file_exit_menu_item  =  new  JMenuItem( "Exit" ) ;

   JMenuItem  edit_copy_menu_item  =  new  JMenuItem( "Copy" ) ;
   JMenuItem  edit_paste_menu_item =  new  JMenuItem( "Paste" ) ;

   JCheckBoxMenuItem  cyan_background_menu_item  =
                                 new JCheckBoxMenuItem( "Cyan background" ) ;

   JRadioButtonMenuItem  small_text_menu_item  =
                                 new JRadioButtonMenuItem( "Small" ) ;
   JRadioButtonMenuItem  medium_text_menu_item  =
                                 new JRadioButtonMenuItem( "Medium" ) ;
   JRadioButtonMenuItem  large_text_menu_item  =
                                 new JRadioButtonMenuItem( "Large" ) ;

   ButtonGroup  text_size_button_group  =  new  ButtonGroup() ;

   JMenuItem  about_menu_item  =  new  JMenuItem( "About" ) ;

   String  last_selected_menu_item  =  "NO SELECTIONS MADE." ;


   Action toolbar_quit_action  =  new ToolbarAction( "Quit" ) ;
   Action toolbar_cyan_background_action  =  new ToolbarAction(
                                                     "CyanBackground" ) ;
   Action toolbar_small_text_action   =  new ToolbarAction( "Small" ) ;
   Action toolbar_medium_text_action  =  new ToolbarAction( "Medium" ) ;
   Action toolbar_large_text_action   =  new ToolbarAction( "Large" ) ;

   JToolBar toolbar_of_this_application  =  new JToolBar() ;


   public MenuDemoFrameWithToolbar()
   {
      getContentPane().setBackground( Color.white ) ;

      setSize( WINDOW_WIDTH, WINDOW_HEIGHT ) ;

      setTitle( "GUI APPLICATION WITH MENUS" ) ;

      file_open_menu_item.setMnemonic( 'O' ) ;
      file_open_menu_item.addActionListener( this ) ;
      file_save_menu_item.setMnemonic( 'S' ) ;
      file_save_menu_item.addActionListener( this ) ;
      file_exit_menu_item.setMnemonic( 'x' ) ;
      file_exit_menu_item.addActionListener( this ) ;

      JMenu  file_menu  =  new  JMenu( "File" ) ;
      file_menu.setMnemonic( 'F' ) ;

      file_menu.add( file_open_menu_item ) ;
      file_menu.add( file_save_menu_item ) ;
      file_menu.add( file_exit_menu_item ) ;

      edit_copy_menu_item.addActionListener( this ) ;
      edit_paste_menu_item.addActionListener( this ) ;

      JMenu  edit_menu  =  new  JMenu( "Edit" ) ;

      edit_menu.add( edit_copy_menu_item ) ;
      edit_menu.add( edit_paste_menu_item ) ;

      JMenu  settings_menu  =  new  JMenu( "Settings" ) ;

      cyan_background_menu_item.addActionListener( this ) ;

      settings_menu.add( cyan_background_menu_item ) ;

      small_text_menu_item.addActionListener( this ) ;
      medium_text_menu_item.addActionListener( this ) ;
      large_text_menu_item.addActionListener( this ) ;

      medium_text_menu_item.setSelected( true ) ;

      text_size_button_group.add( small_text_menu_item ) ;
      text_size_button_group.add( medium_text_menu_item ) ;
      text_size_button_group.add( large_text_menu_item ) ;

      JMenu  text_size_menu  =  new  JMenu( "Text size" ) ;
      
      text_size_menu.add( small_text_menu_item ) ;
      text_size_menu.add( medium_text_menu_item ) ;
      text_size_menu.add( large_text_menu_item ) ;

      settings_menu.add( text_size_menu ) ;

      JMenu  help_menu  =  new  JMenu( "Help" ) ;

      about_menu_item.addActionListener( this ) ;
      help_menu.add( about_menu_item ) ;

      JMenuBar menubar_of_this_window  =  new JMenuBar() ;

      menubar_of_this_window.add( file_menu ) ;
      menubar_of_this_window.add( edit_menu ) ;
      menubar_of_this_window.add( settings_menu ) ;
      menubar_of_this_window.add( help_menu ) ;

      setJMenuBar( menubar_of_this_window ) ;

      setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE ) ;


      toolbar_of_this_application.add( toolbar_quit_action ) ;
      toolbar_of_this_application.add( toolbar_cyan_background_action ) ;
      toolbar_of_this_application.add( toolbar_small_text_action ) ;
      toolbar_of_this_application.add( toolbar_medium_text_action ) ;
      toolbar_of_this_application.add( toolbar_large_text_action ) ;

      getContentPane().add( toolbar_of_this_application, BorderLayout.NORTH ) ;
   }



   //  The following method reacts to the menu selections.
   //  In most cases the only reaction is that the text that
   //  appears on the screen is changed.
   //  Background color is set to cyan if that selection is made.
   //  Help -> About selection brings a message dialog to the screen.
   //  File -> Exit selection terminates the application.

   public void actionPerformed( ActionEvent event )
   {
      if ( event.getSource() instanceof JMenuItem )
      {
         JMenuItem selected_menu_item  = (JMenuItem) event.getSource() ;

         last_selected_menu_item  =  selected_menu_item.getText() ;

         if ( cyan_background_menu_item.isSelected() == true )
         {
            getContentPane().setBackground( Color.cyan ) ;
         }
         else
         {
            getContentPane().setBackground( Color.white ) ;
         }

         if ( selected_menu_item  ==  file_exit_menu_item )
         {
            setVisible( false ) ;
            System.exit( 0 ) ;
         }
         else if ( selected_menu_item  ==  about_menu_item )
         {
            JOptionPane.showMessageDialog( this, 
                                 "This is a simple GUI application"
                               + "\nwith menus.",
                                 "About", JOptionPane.PLAIN_MESSAGE ) ;
         }

         repaint() ;
      }
   }


   public void paint( Graphics graphics )
   {
      super.paint( graphics ) ;

      if ( small_text_menu_item.isSelected() == true )
      {
         graphics.setFont( new Font( "Serif", Font.PLAIN, 10 ) ) ;
      }

      if ( medium_text_menu_item.isSelected() == true )
      {
         graphics.setFont( new Font( "Serif", Font.PLAIN, 14 ) ) ;
      }

      if ( large_text_menu_item.isSelected() == true )
      {
         graphics.setFont( new Font( "Serif", Font.PLAIN, 18 ) ) ;
      }

      graphics.drawString( "Last selected menu item: \""
                        +   last_selected_menu_item  +  "\"",
                           100, 200 ) ;
   }
}

public class MenuDemoWithToolbarApplication
{
   public static void main( String[] not_in_use )
   {
      MenuDemoFrameWithToolbar  this_application_window  =
                                       new  MenuDemoFrameWithToolbar() ;

      this_application_window.setVisible( true ) ;
   }
}


/*  NOTES:

    If you like to have so called 'tool tips' connected to
    the toolbar buttons, you can do it with the following statements:

      toolbar_quit_action.putValue( Action.SHORT_DESCRIPTION, 
                                    "Quit this application" ) ;
      toolbar_cyan_background_action.putValue( Action.SHORT_DESCRIPTION,
                                               "Change background color" ) ;
      toolbar_small_text_action.putValue( Action.SHORT_DESCRIPTION,
                                          "Small text size" ) ;
      toolbar_medium_text_action.putValue( Action.SHORT_DESCRIPTION,
                                           "Medium text size" ) ;
      toolbar_large_text_action.putValue( Action.SHORT_DESCRIPTION,
                                          "Large text size" ) ;


*/