Get file details and print

[michael yue]

Dear all,

I am trying to do a program that get the data from a file and send it straight to printing. My code is as below

import java.io.*;
import java.awt.*;
import java.awt.print.*;
import java.awt.geom.*;
//import java.sql.*;
import java.text.*;
import java.util.*;

class PrintObject implements Printable
{
public int print (Graphics g, PageFormat f, int pageIndex)
{

String str="NONE",str1="NONE1";
try{
BufferedReader in = new BufferedReader(new FileReader("text.txt"));

while ((str = in.readLine()) != null) {
str1=str1+str+"\n";


}

in.close();
} catch (IOException e) {
System.out.println(e);
}

System.out.println(str1);


switch (pageIndex)
{
case 0 : g.drawString(str1, 100,100);
return PAGE_EXISTS;

default: return NO_SUCH_PAGE; // No other pages
}
}
}

public class printest
{
public static void main (String[] args)
{
// Create an object that will hold all print parameters, such as
// page size, printer resolution. In addition, it manages the print
// process (job).
PrinterJob job = PrinterJob.getPrinterJob();

// It is first called to tell it what object will print each page.
job.setPrintable(new PrintObject());

// Then it is called to display the standard print options dialog.
if (job.printDialog())
{
// If the user has pressed OK (printDialog returns true), then go
// ahead with the printing. This is started by the simple call to
// the job print() method. When it runs, it calls the page print
// object for page index 0. Then page index 1, 2, and so on
// until NO_SUCH_PAGE is returned.
try { job.print(); }
catch (PrinterException e) { System.out.println(e); }
}
}
}

Problem is when run the program the print dialog box display there is 9999 pages to print. So i change the dialog box to print 1 page and the printing only came out 1 line. It also didnt leave a line meaning /n didnt perform. Can anyone correct me?
Thanks

[Stefan Wagner]

You have to set the y-coordinate yourself.

Just to give a starting point:

class PrintObject implements Printable
{
 
java.util.List<java.util.List <String>> pages;
 
public void getContent ()
{
pages = new ArrayList <java.util.List <String>> ();
java.util.List<String> page = new ArrayList <String> ();
String str="NONE";
try
{
int i = 0;
BufferedReader in = new BufferedReader (new FileReader ("./Printest.java"));
while ((str = in.readLine ()) != null)
{
page.add (str);
++i;
if (i == 60)
{
pages.add (page);
page = new ArrayList <String> ();
System.out.println ("adding page");
i = 0;
}
}
in.close ();
if (! page.isEmpty ())
{
pages.add (page);
System.out.println ("adding last page");
}
}
catch (IOException e)
{
System.out.println (e);
}
// System.out.println (str);
}
 
public int print (Graphics g, PageFormat f, int pageIndex)
{
System.out.println ("pages: " + pages.size ());
if (pages != null && pages.size () >= (pageIndex + 1))
{
java.util.List <String> l = pages.get (pageIndex);
if (l != null)
{
System.out.println ("lines: " + l.size ());
int y = 0;
for (String s : l)
{
++y;
g.drawString (s, 100, 100 + 10 * y);
System.out.println (s);
}
return PAGE_EXISTS;
}
}
return NO_SUCH_PAGE;
}
}
 
public class Printest
{
public static void main (String [] args)
{
PrinterJob job = PrinterJob.getPrinterJob ();
 
PrintObject po = new PrintObject ();
po.getContent ();
 
job.setPrintable (po);
 
if (job.printDialog ())
{
try { job.print (); }
catch (PrinterException e) { System.out.println (e); }
}
}
}