/*
 * DrawText.java
 *      Usage:  <applet code="DrawText.class width=100 height=100>
 *		# Required parameters:
 *		<param name="font" value="a_font_file.pcf">	#font
 *		<param name="file" value="input_file">		#file
 *              </applet>
 *
 * Ken Shirriff         ken.shirriff@eng.sun.com
 *
 * Copyright (c) 1997 Sun Microsystems, Inc. All Rights Reserved.
 *
 * SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF
 * THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
 * TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
 * PARTICULAR PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR
 * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
 * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.
 *
 * Please refer to the file "license.txt"
 * for further important copyright and licensing information.
 */

import java.awt.*;
import java.awt.image.*;
import java.applet.Applet;
import java.net.*;
import java.io.*;
import pcffont.*;

public class DrawText extends Applet {
	PCFFont font;
	Image backImg;

	Color bg = Color.white;

	public void init() {
		String fontname = getParameter("font");
		String filename = getParameter("file");

		if (fontname == null || filename == null) {
			System.out.println("Must specify text and file");
			showStatus("Must specify text and file");
			return;
		}

		try {

		// Load the font
		URL url = new URL(getDocumentBase(), fontname);
		font = new PCFFont(url.openStream());
		font.setBgColor(null);

		// Create the image
		int dispWidth = size().width;
		int dispHeight = size().height;
		backImg = createImage(dispWidth, dispHeight);
		Graphics g = backImg.getGraphics();
		g.setColor(bg);
		g.fillRect(0, 0, dispWidth, dispHeight);

		// Open the text file
		URL fileURL = new URL(getDocumentBase(), filename);
		DataInputStream dis = new DataInputStream(fileURL.openStream());

		// Read lines from the file and draw them in the font
		int ypos = font.getAscent();
		String line;
		while ((line = dis.readLine()) != null) {
			if (font.is2Byte()) {
				line = PCFFont.toJISX(line);
			}
			font.drawString(g, line, 0, ypos);
			ypos += font.getHeight();
		}

		} catch (Exception e) {
			System.out.println("Exception "+e);
			return;
		}

		repaint();

	}

	public void update(Graphics g) {
		paint(g);
	}

	public void paint(Graphics g) {
		g.drawImage(backImg, 0, 0, null);
	}

        public String getAppletInfo() {
                return "DrawText by Ken Shirriff  shirriff@eng.sun.com";
        }
 
}