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Message:

Printing in JAVA

Posted by Sumant on March 12, 2001 at 6:23 PM

Hi there I am trying to print 100 lines ( max. 30 lines per page )
but when I run the program my 1st page comes out blank and 2nd page onwards it prints correct output, 31 to 60 then 61 - 90....
attached is the class that implements Printable ....
please le me know the patch to correct this problem.

//----------------
class PaintCover implements Printable
{

int nLineNo = 1;
int nOldPageNo = 0;
int nNoOfLinesOnPage = 30;
int nMaxRows = 100;
int nRowNo = 1;

Font fnt = new Font("Verdana", Font.PLAIN, 10);

public int print(Graphics g, PageFormat pf, int pageIndex) throws PrinterException
{
g.setFont(fnt);
g.setColor(Color.black);
Graphics2D g2 = (Graphics2D) g;
int x,y;

if(nRowNo > nMaxRows)
return Printable.NO_SUCH_PAGE;

x = (int)pf.getImageableX();
while(nLineNo <= nNoOfLinesOnPage)
{
y = (int)pf.getImageableY() + nLineNo*10;
g2.drawString(x+", "+y+" This is RowNo : "+ nRowNo , x ,y );
nRowNo++;
nLineNo++;
if(nRowNo > nMaxRows)
break;
}
if( nOldPageNo != pageIndex )
{
nOldPageNo = pageIndex;
nLineNo = 1;
}
return Printable.PAGE_EXISTS;
}
}