printtable.java

外国人写的Java打印程序

package printtable;

import javax.swing.*;
import java.awt.print.*;
import java.awt.*;
import java.awt.event.*;

public class PrintTable extends JPanel{
  //the target table
  JTable table;

  //use as the printable for print
  TableCliper tableCliper;

  //use as the pageformat for print
  ExtPageFormat pageFormat;
  JPanel mainPanel = new JPanel();
  BorderLayout thisPanelLayout = new BorderLayout();
  FlowLayout mainPanelLayout = new FlowLayout();
  JButton bDoPrint = new JButton();
  JButton bPrintPreview = new JButton();
  JButton bSetPaper = new JButton();

  //init PrintTable class with only table
  public PrintTable(JTable targetTable) {
    //super();
    //super.repaint();
    table = targetTable;
    pageFormat = new ExtPageFormat();
    pageFormat.setPaper(PaperSetting.getA4());
  }

  //init PrintTable class with both table and pageformat
  public PrintTable(JTable targetTable,PageFormat newPageFormat) {
    //super();
    //super.repaint();
    table = targetTable;
    pageFormat = (ExtPageFormat)newPageFormat;
  }

  //get PageFormat
  public PageFormat getPageFormat()
  {
    return pageFormat;
  }

  //set or get table
  public void setTable(JTable newTable)
  {
    table = newTable;
  }

  public JTable getTable()
  {
    return table;
  }

  //show print preview dialog
  public void printPreview()
  {
    //get printable from table
    tableCliper = new TableCliper(table,pageFormat);

    //build a printPreview dialog to show the paper
    PrintPreview  printPreview = new PrintPreview(tableCliper,0);

    JDialog newDialog = new JDialog();
    newDialog.setTitle("Print Preview");
    newDialog.getContentPane().add(printPreview);
    newDialog.setSize(400,575);

    newDialog.setVisible(true);
  }

  //show a dialog for set paper
  public void paperSetPage()
  {
    //send the ExtPageFormat to it and build a dialog
    PaperSetPage  paperSetPage = new PaperSetPage(pageFormat);

    JDialog newDialog = new JDialog();
    newDialog.setTitle("Paper Setting");
    newDialog.getContentPane().add(paperSetPage);
    newDialog.setSize(675,450);

    newDialog.setVisible(true);
  }

  //printing
  public void doPrintWithDialog()
  {
    tableCliper = new TableCliper(table,pageFormat);

    PrintMonitor printMonitor = new PrintMonitor(tableCliper,pageFormat.getJobName());
    try
    {
      printMonitor.performPrint(true);
    }
    catch(PrinterException pe)
    {
     JOptionPane.showMessageDialog(null,"Print Error:" + pe.getMessage());
    }
  }

  public void doPrintWithoutDialog()
  {
    tableCliper = new TableCliper(table,pageFormat);

    PrintMonitor printMonitor = new PrintMonitor(tableCliper,pageFormat.getJobName());
    try
    {
      printMonitor.performPrint(false);
    }
    catch(PrinterException pe)
    {
     JOptionPane.showMessageDialog(null,"Print Error:" + pe.getMessage());
    }
  }

  public PrintTable() {
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  private void jbInit() throws Exception {
    mainPanel.setLayout(mainPanelLayout);
    this.setLayout(thisPanelLayout);
    this.setBorder(BorderFactory.createEtchedBorder());
    bDoPrint.setText("Print ...");
    bDoPrint.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        bDoPrint_actionPerformed(e);
      }
    });
    bPrintPreview.setText("Print With Preview");
    bPrintPreview.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        bPrintPreview_actionPerformed(e);
      }
    });
    bSetPaper.setText("SetPaper");
    bSetPaper.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        bSetPaper_actionPerformed(e);
      }
    });
    this.add(mainPanel,  BorderLayout.CENTER);
    mainPanel.add(bDoPrint, null);
    mainPanel.add(bPrintPreview, null);
    mainPanel.add(bSetPaper, null);
  }

  void bDoPrint_actionPerformed(ActionEvent e) {
    this.doPrintWithDialog();
  }

  void bPrintPreview_actionPerformed(ActionEvent e) {
    this.printPreview();
  }

  void bSetPaper_actionPerformed(ActionEvent e) {
    this.paperSetPage();
  }
}