这个例子实现了打印字符串,线(包括虚线)和打印图片。而且通过Paper的setImageableArea可以设置打印的区域和边距,让开发者随意的设置打印的位置。
下面的打印代码没有设置打印区域,默认为打印纸张的区域和边距,比如我们一般用的A4纸,打印的起点X和Y坐标则是72,72。
无区域设置的代码:- 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 PrintTest1 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://logo.gif");
- 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 PrintTest1());//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();
- }
- }
- }
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