如何将jPanel居中在打印的页面上？

Question

我收到要打印的收据，这很棒。有没有一种直接的方法可以在打印页面时将jPanel居中？

感谢您的帮助。

Answer 1

这是一种半直接的方式。

public int print(Graphics g, PageFormat pf, int pageIndex) {
  Component myPanel =...;
  g.translate(pf.getImageableX() + pf.getImageableWidth() / 2 - myPanel.getWidth() / 2, pf.getImageableY() + pf.getImageableHeight() / 2 - myPanel.getHeight() / 2);
  //Graphics object has been set up so the printing myPanel with it should now be centered
  myPanel.print(g);
}