java 打印机程序

 import java.awt.BorderLayout;

import java.awt.Canvas;

import java.awt.Font;

import java.awt.Graphics;

import java.awt.Graphics2D;

import java.awt.Shape;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.font.FontRenderContext;

import java.awt.font.TextLayout;

import java.awt.geom.AffineTransform;

import java.awt.geom.GeneralPath;

import java.awt.geom.Line2D;

import java.awt.geom.Point2D;

import java.awt.geom.Rectangle2D;

import java.awt.geom.Point2D.Double;

import java.awt.print.PageFormat;

import java.awt.print.Printable;

import java.awt.print.PrinterException;

import java.awt.print.PrinterJob;

 

import javax.print.attribute.HashPrintRequestAttributeSet;

import javax.print.attribute.PrintRequestAttributeSet;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JOptionPane;

import javax.swing.JPanel;

import javax.swing.border.Border;

 

import com.google.common.annotations.GwtCompatible;

import com.sun.xml.internal.fastinfoset.tools.PrintTable;

 

 

public class PrintTest {

 

    /**

     * @param args

     */

    public static void main(String[] args) {

        JFrame frame = new PrintTestFrame();

        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        frame.setVisible(true);

    }

 

}

 

class PrintTestFrame extends JFrame {

    public PrintTestFrame() {

        // JFrame 继承于Frame，而setTitle是Frame的一个方法

        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() {

            

            @Override

            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() {

            

            @Override

            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;

}

 

class PrintPanel extends JPanel implements Printable{

 

    @Override

    public int print(Graphics g, PageFormat pf, int page)

            throws PrinterException {

        // TODO Auto-generated method stub

        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;

    }

    

    public void paintComponent(Graphics g) {

        super.paintComponent(g);

        Graphics2D g2 = (Graphics2D) g;

        drawPage(g2);

    }

    

    public void drawPage(Graphics2D g2) {

        FontRenderContext context = g2.getFontRenderContext();

        Font f = new Font("Seriv", 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));

        }

    }

    

}