[4942] in java-interest
RE: Can anyone explain goofiness in GridBagLayout?
daemon@ATHENA.MIT.EDU (Cay Horstmann)
Tue Jan 23 15:34:36 1996
From: Cay Horstmann <horstman@jupiter.SJSU.EDU>
To: "'java-interest@java.sun.com'" <java-interest@java.sun.com>
Date: Tue, 23 Jan 1996 10:14:28 -0800
Thanks. I understand the difference between a grid and a grid bag. In a grid, you can't merge cells.
Nevertheless, the grid bag does have an underlying grid--just look at the source. It computes the total number of rows and columns needed.
I don't understand how that source could act differently on different machines. It is written in Java.
Cay
horstman@cs.sjsu.edu
Cay Horstmann (horstman@cs.sjsu.edu)
I am trying to understand GridBagLayout. The idea is simple. You make
a grid. You then merge adjacent cells. Just like tables in Word or
WordPerfect.
Then the craziness sets in. Why don't I just tell the grid bag layout
object how many rows and columns my grid has? I mean why be coy about
it?
Anna von Klopp (a.von.klopp@bangor.ac.uk)
Because that's what it hasn't. If you have rows and cols, use the
GridLayout. The GridBagLayout is "handy" if you have
Component 1
Comp Comp
onen onen
t 2 t 3
Component 4
for instance. Or if your display alternates between a 2X2 and a 2X1
pattern. This is not to say that I am particular fond of it, just that
it might not be what you want.
I'm not expressing positive sentiments about the GridBagLayout by
this. You can see it in use at
http://www.linguistics.bangor.ac.uk/java/lt/LingTutor.java
(with a natural language parser to boot).
I tried the much simpler scheme of setting x and y, width and height
to their actual values rather than having the grid bag layout recover
them from my hints, and it seems to work just fine. It is easier on
me, it is easier on the layout manager, so what is the use of the
scheme explained in the docs?
>From what I've gathered, this doesn't work between machines. We did it
for the alpha java version of the applet above.
Ana von Klopp
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