ptest2.java

Java开发的通用条码打印程序

package barprint.print;

import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Component;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Image;

import java.awt.Toolkit;
import java.awt.RenderingHints;
import java.awt.font.FontRenderContext;
import java.awt.font.LineBreakMeasurer;
import java.awt.font.TextAttribute;
import java.awt.font.TextLayout;
import java.awt.geom.Point2D;
import java.awt.image.BufferedImage;
import java.awt.print.Book;
import java.awt.print.PageFormat;
import java.awt.print.Paper;
import java.awt.print.Printable;
import java.awt.print.PrinterException;
import java.awt.print.PrinterJob;
import java.text.AttributedString;

import javax.swing.JApplet;



public class Ptest2 implements Printable{
   /** *//**
   * @param Graphic指明打印的图形环境
   * @param PageFormat指明打印页格式（页面大小以点为计量单位，1点为1英才的1/72，1英寸为25.4毫米。A4纸大致为595×842点）
   * @param pageIndex指明页号
   **/
   public int print(Graphics gra, PageFormat pf, int pageIndex) throws PrinterException {
       System.out.println("pageIndex="+pageIndex);
       Component c = null;
      //print string
      String str = "中华民族是勤劳、勇敢和富有智慧的伟大民族。";
      //转换成Graphics2D
      Graphics2D g2 = (Graphics2D) gra;
      //设置打印颜色为黑色
      g2.setColor(Color.black);

      /**//*Paper paper = pf.getPaper();//得到页面格式的纸张
      paper.setSize(500,500);//纸张大小
      paper.setImageableArea(0,0,500,500); //设置打印区域的大小
      System.out.println(paper.getWidth());
      System.out.println(paper.getHeight());
      pf.setPaper(paper);//将该纸张作为格式 */

      //打印起点坐标
      double x = pf.getImageableX();
      double y = pf.getImageableY();

      switch(pageIndex){
         case 0:
           //设置打印字体（字体名称、样式和点大小）（字体名称可以是物理或者逻辑名称）
           //Java平台所定义的五种字体系列：Serif、SansSerif、Monospaced、Dialog 和 DialogInput
           Font font = new Font("新宋体", Font.PLAIN, 9);
           g2.setFont(font);//设置字体
           //BasicStroke   bs_3=new   BasicStroke(0.5f);
           float[]   dash1   =   {4.0f};
           g2.setStroke(new   BasicStroke(0.5f,   BasicStroke.CAP_BUTT,   BasicStroke.JOIN_MITER,   4.0f,   dash1,   0.0f));

           float heigth = font.getSize2D();//字体高度
           System.out.println("x="+x);
           //使用抗锯齿模式完成文本呈现
           /**//*g2.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
          RenderingHints.VALUE_TEXT_ANTIALIAS_ON);*/
           // -1- 用Graphics2D直接输出
           //首字符的基线(右下部)位于用户空间中的 (x, y) 位置处

           //g2.drawLine(10,10,200,10);

           Image src = Toolkit.getDefaultToolkit().getImage("D://4px//about.bmp");
           g2.drawImage(src,(int)x,(int)y,c);
           int img_Height=src.getHeight(c);
           int img_width=src.getWidth(c);
           //System.out.println("img_Height="+img_Height+"img_width="+img_width) ;

           g2.drawString(str, (float)x, (float)y+1*heigth+img_Height);
           g2.drawLine((int)x,(int)(y+1*heigth+img_Height+10),(int)x+200,(int)(y+1*heigth+img_Height+10));

           g2.drawImage(src,(int)x,(int)(y+1*heigth+img_Height+11),c);


           // -2- 直接构造TextLayout打印
           /**//*FontRenderContext frc = g2.getFontRenderContext();
           TextLayout layout = new TextLayout(str, font, frc);
           layout.draw(g2, (float)x, (float)y+2*heigth);*/
           // -3- 用LineBreakMeasurer进行打印
           /**//*AttributedString text = new AttributedString(str);
           text.addAttribute(TextAttribute.FONT, font);
           LineBreakMeasurer lineBreaker = new LineBreakMeasurer(text.getIterator(), frc);
           //每行字符显示长度(点)
           double width = pf.getImageableWidth();
           //首字符的基线位于用户空间中的 (x, y) 位置处
           Point2D.Double pen = new Point2D.Double (100, y+3*heigth);
           while ( (layout = lineBreaker.nextLayout( (float) width)) != null){
              layout.draw(g2, (float)x, (float) pen.y);
              pen.y += layout.getAscent();
           }*/
         return PAGE_EXISTS;
         default:
         return NO_SUCH_PAGE;
      }

   }


public static void main(String[] args) {

     //获取打印服务对象
     PrinterJob job = PrinterJob.getPrinterJob();
     PageFormat pageFormat = job.defaultPage();//得到默认页格式
     job.setPrintable(new Ptest2());//设置打印类

     try {
         //可以用printDialog显示打印对话框，在用户确认后打印；也可以直接打印
         boolean a=job.printDialog();
         if(a)
         {

         job.print();
         }
     } catch (PrinterException e) {
         e.printStackTrace();
     }
   }
}