Language Java Nosugar UI Code Simpleframe.java

// 
//	SimpleFrame class
//	part of the set of documents known as Java no sugar.
//	Copyright (c) 1996 Sunil Gupta, sunil@magnetic.demon.co.uk
//	placed into the public domain by the author
//
import java.awt.*;
import java.applet.*;
import OK_Dialog;

public class SimpleFrame extends Frame
{
	static final int DIALOG = 1;
	static final int FRAME = 2;
	static final int MENUBAR = 3;
	static final int MENUITEMS = 4;
	static final int CHECKMENU = 5;
	
	Button btn_quit;
	Button btn_dialog;
		Label label, lbl_status;
		MenuBar menubar;
		Menu menu_file, menu_help, menu_edit, menu_options, menu_cascade, sub_menu;
		MenuItem close_item;
	CheckboxMenuItem checked_menu_item;	
	
	public SimpleFrame( String title, int what)
	{
		super(title);
		
		
		this.setLayout( new GridLayout(0,1) );
		switch(what)
		{
			case FRAME:
					label = new Label
				(
					"This is a simple frame "+
					"But due to paranoid geeks on the net "+
					"theres a horrible message at the "+
					"bottom of the frame"
				);
				this.add(label);
				break;
				
			case DIALOG:
					label = new Label("Unfortunately applets dont have direct access to dialogs");
				this.add(label);
				  btn_dialog = new Button("Click me for a dialog");
				  this.add(btn_dialog);
				break;
				
			case MENUBAR:
			case MENUITEMS:
			case CHECKMENU:
				menubar = new MenuBar();
				this.setMenuBar(menubar);
				menu_file = new Menu("File");
				menu_edit = new Menu("Edit");
				menu_options = new Menu("Options");
				menu_help = new Menu("Help");
				menu_cascade = new Menu("Cascade");
				
				menubar.add(menu_file);
				menubar.add(menu_edit);
				menubar.add(menu_options);
				menubar.add(menu_cascade);
				menubar.add(menu_help);
				menubar.setHelpMenu(menu_help);
				
				if (what != MENUBAR)
				{
					menu_file.add( new MenuItem("New"));
					menu_file.add( new MenuItem("Open"));
					menu_file.add( new MenuItem("-"));
					menu_file.add( new MenuItem("Print"));
					menu_file.add( new MenuItem("Print Preview"));
					menu_file.add( new MenuItem("-"));
					close_item = new MenuItem("Close"); 
					menu_file.add( close_item);
					
					menu_edit.add( new MenuItem("Cut"));
					menu_edit.add( new MenuItem("Copy"));
					menu_edit.add( new MenuItem("Paste"));
					
						sub_menu = new Menu("Sub menu");
						sub_menu.add (new MenuItem("Item 1") );
						sub_menu.add (new MenuItem("Item 2") );
						sub_menu.add (new MenuItem("Item 3") );
						menu_cascade.add(sub_menu);
						
					menu_help.add( new MenuItem("About"));
					
					if (what == CHECKMENU)
					{
						checked_menu_item = new CheckboxMenuItem("HTML mode");
						checked_menu_item.setState(true);
						menu_options.add(checked_menu_item);
						menu_options.add ( new CheckboxMenuItem("java mode") );
						menu_options.add ( new CheckboxMenuItem("C mode") );
						menu_options.add ( new CheckboxMenuItem("Delphi mode") );
					}

				}
				
				break;
				
		}
		
		btn_quit = new Button("Quit");
		this.add(btn_quit);
		
		lbl_status = new Label("status");
		this.add(lbl_status);
	}
	
	public SimpleFrame( String title)
	{
		this(title, FRAME);
	}
		
	public boolean action(Event event, Object arg)
		{
		OK_dialog dialog;
			CardLayout layout;
			
			if ((event.target == btn_quit)  || (event.target == close_item))
			{
				this.hide();
				this.dispose();
			return (true);
		}
		else if(event.target == btn_dialog)
		{
				dialog = new OK_dialog(this, "this is a dialog", "About");
				dialog.show();
			return (true);
		}
		else if (event.target instanceof MenuItem)
		{
			MenuItem the_item;
			Menu menu;
			String status;
			
			the_item =  (MenuItem)(event.target);
			menu = (Menu) the_item.getParent();
			lbl_status.setText( "item " + arg +" in " + menu.getLabel() );
			return (true);
		}
		
		return(false);
   }

}

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