GridBagLayout "scrunched" together - messy?

[achana chan]

Hi all.
I've an applet which throws a JFrame.
The JFrame constains a relatively complex GridBagLayout.
When the JFrame pops up, and before I maximize it, the components appear "scrunched" up, overlapping one another in a mess, as if swing is trying to fit everything into the minimized JFrame.
However, once I maximize the JFrame, the components are laid out as intended.
Why is this so and how can I prevent the JComponents from being scrunched up before maximizing the JFrame?
TIA :-)

[Jose Botella]

is the initial size of the frame big enough for its content?

[achana chan]

No, when the JFrame pops up, it is in a "minimized" form, rather than taking up all the screen real estate. So no, it's not big enough in that sense. Since I maximize it, there's enough screen real estate to lay out the components.
Is there a way I can work around this?
Perhaps put the whole GridBagLayout in a JScrollPane ?

[Jose Botella]

Yes that idea is working; it also looks better setting the scrollbar policies to NEVER.

[achana chan]

The idea works well, but the fine-tuning is puzzling.
Following piece of code achieves the desired basic result:

JScrollPane scrollPane = new JScrollPane(midPane);
content.add(scrollPane, BorderLayout.CENTER);

Yet this piece of code, which is nicer but not a show-stopper, throws compile time error:

JScrollPane scrollPane = new JScrollPane(midPane, 
      ScrollPaneConstants.VERTICAL_SCROLLBAR_NEVER,
      ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
content.add(scrollPane, BorderLayout.CENTER);

The compile time error reads:

cannot resolve symbol
symbol : variable ScrollPaneConstants

[Craig Wood]

    JScrollPane scrollPane = new JScrollPane(midPane,
        JScrollPane.VERTICAL_SCROLLBAR_NEVER,
        JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
    content.add(scrollPane, BorderLayout.CENTER);

[ February 04, 2004: Message edited by: Craig Wood ]

[achana chan]

Thanks, Craig, for taking time to look at my issue.
Your approach works for me.
It would be nice though to know why ScrollPaneConstants didn't work...
:-)

[Craig Wood]

Look in the JScrollPane api at the setVerticalScrollBarPolicy(int policy) method for a listing of the legal values.