java打印的源代码(示例)

package com.demo;import java.awt.*;import java.awt.event.*;import java.awt.font.*;import java.awt.geom.*;import java.awt.print.*;import java.util.*;import javax.print.*;import javax.print.attribute.*;import javax.swing.*;/** This program demonstrates how to print 2D graphics*/public class PrintTest{ public static void main(String[] args) { JFrame frame = new PrintTestFrame(); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setVisible(true); }}/** This frame shows a panel with 2D graphics and buttons to print the graphics and to set up the page format.*/class PrintTestFrame extends JFrame{ public PrintTestFrame() { setTitle("PrintTest"); setSize(DEFAULT_WIDTH, DEFAULT_HEIGHT); canvas = new PrintPanel(); add(canvas, BorderLayout.CENTER); attributes = new HashPrintRequestAttributeSet(); JPanel buttonPanel = new JPanel(); JButton printButton = new JButton("Print"); buttonPanel.add(printButton); printButton.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent event) { try { PrinterJob job = PrinterJob.getPrinterJob(); job.setPrintable(canvas); if (job.printDialog(attributes)) job.print(attributes); } catch (PrinterException e) { JOptionPane.showMessageDialog(PrintTestFrame.this, e); } } }); JButton pageSetupButton = new JButton("Page setup"); buttonPanel.add(pageSetupButton); pageSetupButton.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent event) { PrinterJob job = PrinterJob.getPrinterJob(); job.pageDialog(attributes); } }); add(buttonPanel, BorderLayout.NORTH); } private PrintPanel canvas; private PrintRequestAttributeSet attributes; private static final int DEFAULT_WIDTH = 300; private static final int DEFAULT_HEIGHT = 300;}/** This panel generates a 2D graphics image for screen display and printing.*/class PrintPanel extends JPanel implements Printable{ public void paintComponent(Graphics g) { super.paintComponent(g); Graphics2D g2 = (Graphics2D) g; drawPage(g2); } public int print(Graphics g, PageFormat pf, int page) throws PrinterException { if (page >= 1) return Printable.NO_SUCH_PAGE; Graphics2D g2 = (Graphics2D) g; g2.translate(pf.getImageableX(), pf.getImageableY()); g2.draw(new Rectangle2D.Double(0, 0, pf.getImageableWidth(), pf.getImageableHeight())); drawPage(g2); return Printable.PAGE_EXISTS; } /** This method draws the page both on the screen and the printer graphics context. @param g2 the graphics context */ public void drawPage(Graphics2D g2) { FontRenderContext context = g2.getFontRenderContext(); Font f = new Font("Serif", Font.PLAIN, 72); GeneralPath clipShape = new GeneralPath(); TextLayout layout = new TextLayout("Hello", f, context); AffineTransform transform = AffineTransform.getTranslateInstance(0, 72); Shape outline = layout.getOutline(transform); clipShape.append(outline, false); layout = new TextLayout("World", f, context); transform = AffineTransform.getTranslateInstance(0, 144); outline = layout.getOutline(transform); clipShape.append(outline, false); g2.draw(clipShape); g2.clip(clipShape); final int NLINES =50; Point2D p = new Point2D.Double(0, 0); for (int i = 0; i < NLINES; i++) { double x = (2 * getWidth() * i) / NLINES; double y = (2 * getHeight() * (NLINES - 1 - i)) / NLINES; Point2D q = new Point2D.Double(x, y); g2.draw(new Line2D.Double(p, q)); } }}