hostprint.java

java 平台 telnet 繁体中文版

/*
 * This file is part of "The Java Telnet Application".
 *
 * This is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * "The Java Telnet Application" is distributed in the hope that it will be
 * useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this software; see the file COPYING.  If not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

package de.mud.terminal;

import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Color;
import java.awt.geom.Point2D;
import java.awt.Font;
import java.io.UnsupportedEncodingException;

import java.awt.print.Printable;
import java.awt.print.PrinterJob;
import java.awt.print.PrinterException;
import java.awt.print.PageFormat;
import java.awt.print.Book;
import java.awt.print.PrinterException;

import java.util.LinkedList;
import java.util.NoSuchElementException;

/**
 * Process the print job form host.
 * <P>
 * <B>Maintainer:</B> Jutso Hung
 *
 * @version $Id: HostPrint.java,v 1.3 2001/06/07 11:40:15 jutso Exp $
 * @author Jutso Hung
 */
public class HostPrint extends Thread implements Printable {
// public class HostPrint implements Printable {

  protected PrinterJob pjob;
  protected PageFormat pformat;

  private LinkedList q = new LinkedList();
  private boolean threadSuspended;

  private StringBuffer hpStr = new StringBuffer();
  private int px, py;
  private boolean wrape = true;

  private char charBuf;
  private int wLength = 0;

  private int pagePtr = -1;       /* to point out what page index can draw */
  private int qPtr = 0;        /* point out what queue have been print out */

  public void setPageFormat(PageFormat pf) {
    pformat = pf;
    px = (int) pformat.getImageableX() + 10;
    py = (int) pformat.getImageableY() + 12;
    pjob.setPrintable(this, pformat);
  }

  public void setPrinterJob(PrinterJob pj) {
    pjob = pj;
  }

  public void printChar(char c) {
    if (wLength == 0) {
      if (c >= 128 && c <= 255) {
        charBuf = c;
        wLength++;
      }
      else makePage(c, 1);
    }
    else {
      if (c >= '@' && c <= 255) {
        wLength++;
        makePage((char)((charBuf << 8) | c), wLength);
      }
      else {
        makePage(charBuf, 1);
        makePage(c, 1);
      }
      wLength = 0;
    }
  }

  public synchronized void makePage(char c, int w) {

    hpStr.append(c);

    // if (c == '\f' || hpStr.length() > 1023) {
    if (c == '\f') {
      synchronized(q) {
        q.add(hpStr.toString());
      }
      hpStr = new StringBuffer();

      notify();
    }
  }


  public void run() {

    while (true) {
      synchronized (this) {
        try {
          wait();
        }
        catch (InterruptedException e) {
          System.err.println("Printing error: " + e.getMessage());
        }
      }

      try {
        pagePtr = -1;
        qPtr = 0;
        pjob.print();
      }
      catch (PrinterException exception) {
        System.err.println("Printing error: " + exception);
      }
      catch (ArrayIndexOutOfBoundsException exception) {
        System.err.println("Printing error: " + exception.getMessage());
      }
    }
  }


  public int print(Graphics g, PageFormat format, int pageIndex) {

    Graphics2D g2d = (Graphics2D) g;
    g2d.translate(format.getImageableX() + 10, format.getImageableY() + 12);
    g2d.setPaint(Color.black);
    Point2D.Float pen = new Point2D.Float();
    // Font fnt = new Font("穝灿