Making margins smaller - Java Printing
I am using this code to print on paper:
//Overriden from printable interface
public int print(Graphics g, PageFormat pageFormat, int pageIndex)
throws PrinterException {
if (pageIndex != 0) {
return Printable.NO_SUCH_PAGE;
}
Paper a4 = new Paper();
a4.setImageableArea(0, 0, a4.getWidth(), a4.getHeight());
pageFormat.setPaper(a4);
pageFormat.setOrientation(PageFormat.PORTRAIT);
Graphics2D g2d = (Graphics2D)g;
//g2d开发者_JAVA百科.translate(pageFormat.getImageableX(), pageFormat.getImageableY());
this.setDoubleBuffered(false);
panel.print(g2d);
JOptionPane.showMessageDialog(null, new ImageIcon(image));
this.setDoubleBuffered(true);
return Printable.PAGE_EXISTS;
}
I am trying to reduce the size of the margins programmatically. Whatever I do, there always seems to be a large missing chunk from the image's sides (Unless I remove the margins from the print dialog - but as I said, I want to remove them programatically to automate the whole process).
US Letter sized paper, for example, measures 8½ x 11 inches. At 72 dots per inch, that's 612 x 792.
On a typical printer having paper of that size selected, the PageFormat
object reports the following area.
System.out.println(pf.getImageableX() + " " + pf.getImageableY()
+ " " + pf.getImageableWidth() + " " + pf.getImageableHeight());
18.0 18.0 576.0 734.0 18.0 18.0 576.0 734.0
Few consumer printers are full-bleed, so the pritable area is smaller than the paper's physical dimensions would suggest. In effect, the printer can't put ink where it can't print.
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