// Img - alternative to HTML <IMG>
//
// A simple Java applet that acts like an HTML <IMG> tag.  One reason
// you might use this instead of <IMG> is that it's harder for users
// to save images being displayed through an applet - a primitive
// form of copy-protection.
//
// Downsides:
//  - Under most circumstances, it's a lot slower.
//  - With the current applet security constraints, it can only
//    load images from the same network site that the Img applet itself
//    was loaded from.
//
// Parameters:
//     SRC - the URL to load
//
// Copyright (C) 1996 by Jef Poskanzer <jef@mail.acme.com>.  All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// 1. Redistributions of source code must retain the above copyright
//    notice, this list of conditions and the following disclaimer.
// 2. 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.
//
// THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.

import java.applet.*;
import java.awt.*;
import java.awt.image.*;
import java.net.*;

public class Img extends Applet implements ImageObserver
    {

    // Applet info.
    public String getAppletInfo()
	{
	return getClass().getName() +
" - Copyright (C) 1996 by Jef Poskanzer <jef@mail.acme.com>.  All rights reserved.";
	}

    // Parameter info.
    public String[][] getParameterInfo()
	{
	String[][] info =
	    {
	    { "SRC",	"URL",	"the image to load" },
	    };
	return info;
	}

    // Called when the applet is first created.
    public void init()
	{
	Acme.GuiUtils.handleBgcolor( this );

	URL context = getDocumentBase();
	String src = getParameter( "SRC" );
	try
	    {
	    URL url = new URL( context, src );
	    Image img;
	    if ( url == null )
		img = Acme.GuiUtils.brokenIcon( this );
	    else
		img = getImage( url );
	    add( "Center", new Acme.Widgets.ImageLabel( img ) );
	    }
	catch ( Exception e )
	    {
	    System.err.println( e );
	    e.printStackTrace();
	    }
	}
    
    }