Just tested under Java 1.4.1_01/Linux 2.4.18-686 -> cups 1.1.14 -> hp psc 750 with
300x300dpi:
a)
public int print(Graphics g, PageFormat pf, int pageIndex) {
if (pageIndex == 0) {
BufferedImage bi = new BufferedImage(2, 2, BufferedImage.TYPE_INT_RGB);
bi.setRGB(0, 0, 0x000000);
bi.setRGB(0, 1, 0xffffff);
bi.setRGB(1, 0, 0xffffff);
bi.setRGB(1, 1, 0x000000);
Graphics2D g2d = (Graphics2D) g;
g2d.translate(pf.getImageableX(), pf.getImageableY());
g2d.scale(200, 200);
g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
RenderingHints.VALUE_INTERPOLATION_BILINEAR);
g2d.drawImage(bi, null, null);
return Printable.PAGE_EXISTS;
} else {
return Printable.NO_SUCH_PAGE;
}
=> PrintJob size: 3k
RenderingHints.VALUE_INTERPOLATION_BILINEAR ignored!
b)
public int print(Graphics g, PageFormat pf, int pageIndex) {
if (pageIndex == 0) {
BufferedImage bi = new BufferedImage(2, 2, BufferedImage.TYPE_INT_RGB);
bi.setRGB(0, 0, 0x000000);
bi.setRGB(0, 1, 0xffffff);
bi.setRGB(1, 0, 0xffffff);
bi.setRGB(1, 1, 0x000000);
Graphics2D g2d = (Graphics2D) g;
g2d.translate(pf.getImageableX(), pf.getImageableY());
AffineTransform af = g2d.getTransform();
g2d.scale(1. / af.getScaleX(), 1. / af.getScaleY());
af.scale(200, 200);
AffineTransformOp op = new AffineTransformOp(af,
AffineTransformOp.TYPE_BILINEAR);
BufferedImage dest = op.filter(bi, null);
g2d.drawImage(dest, null, null);
return Printable.PAGE_EXISTS;
} else {
return Printable.NO_SUCH_PAGE;
}
=> PrintJob size: 426k
bilinear Interpolation!
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