30 replies to this topic

[wim DC]

Judging by the javadoc that goes with validate it seems to do the thing.

If you plan to call validate again on the same container, you may want to prefer revaldiate() though.

[gregwarner]

None of those options seemed to do anything. I'm still getting a blank page when I print.

[wim DC]

Did you do setInsets?
Otherwise try setSize, minimumsize, preferred size, bounds.. lol

[gregwarner]

I didn't see a setInsets() method. I checked the javadoc on getInsets(), and it says that if a border has been set, it'll get the insets from that, so that's what I did.

[wim DC]

Source of the layoutcontainer starts with:

public void layoutContainer(Container target) {
synchronized (target.getTreeLock()) {
  Insets insets = target.getInsets();
  int top = insets.top;
  int bottom = target.height - insets.bottom;
  int left = insets.left;
  int right = target.width - insets.right;

So it has to be set somehow...

[gregwarner]

From the JComponent.getInsets() Javadoc:

If a border has been set on this component, returns the border's insets; otherwise calls super.getInsets.

So I set a blank border for my insets.

[gregwarner]

I fixed my issue with it printing completely blank. Since I wasn't displaying my JPanel on the screen first, the outer JPanel itself that I was trying to print didn't have a preferred size set. I used its own setBounds() method to give it a size, and lo and behold, it printed. (I also had to explicitly call layoutContainer() on its layout manager to force it to give bounds to all its children.)

Now all I have to do is fix this issue with the font metrics giving different string lengths for the screen and the printer at font size 8 pts.