-Original Message-
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Sent: Friday, December 07, 2001 4:33 PM
To: [EMAIL PROTECTED]
Subject: Advanced-swing digest, Vol 1 #262 - 2 msgs
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Today's Topics:
1. RE: Tiling a background image (Frank D. Greco)
2. RE: JTextArea (Samivelu, Srinivasan)
--__--__--
Message: 1
Date: Thu, 06 Dec 2001 09:17:05 -0500
To: [EMAIL PROTECTED]
From: Frank D. Greco [EMAIL PROTECTED]
Subject: RE: Tiling a background image
Cc: [EMAIL PROTECTED]
At 03:30 PM 11/30/2001 -0800, Ken Miller wrote:
Ok, I got the tiled image to appear by adding it to the desktop and making
the panel size sufficiently large enough. I set it to 2000,2000 so that
it
would always take up the entire window even if it's resized to the whole
screen.
You should scale the background image to the size of the
JDesktopPane
in its paint method instead. There is an overloaded drawImage()
that
helps with this. Or come up with a simple tiling algorithm
yourself to use.
The problem now is that any JInternalFrame that is placed onto the desktop
and moved or later closed, writes over the tiled background. So I guess I
need some way to make sure that the desktop gets repainted whenever any of
the JInternalFrames are moved or closed. Does that mean I have to capture
the event of any JInternalFrame and force it to redraw the desktop when it
is resized, moved or closed?
Almost. Capture the events of the JDesktopPane instead. Scale the
image when you resize or open, but don't scale when you just get
any other repaint requests (rescaling is painfully slow).
However, if you put a JDesktopPane within your JDesktopPane
(ie, a JInternalFrame with its own JDesktopPane... with its
own JInternalFrame's), all kinds of funky things happen.
I make the reference to my background image
a static shared by all instances of a JDesktopPane, but repainting
(as
I describe above) is quite weird. The inner JDesktopPane scales
properly
when I resize it, but when there's internal window damage, it
draws
the background image at the scale of the outer JDesktopPane.
Very weird behavior. I had to disable the ability for inner
JDesktopPane's
to have background images unfortunately. :(
Btw, we're building a cool collaborative environment that works over
HTTP...
fun stuff.
Frank G.
+==+
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--__--__--
Message: 2
From: Samivelu, Srinivasan [EMAIL PROTECTED]
To: 'Steve Barrett' [EMAIL PROTECTED], '[EMAIL PROTECTED]'
[EMAIL PROTECTED]
Subject: RE: JTextArea
Date: Thu, 6 Dec 2001 16:10:34 +0100
Dear Steve Barrett
Thanks for the solution. but i wanted something like this. In a panel i have
two textarea fields and four textfields
when i traverse the fields using the tab key, I want the focus to come out
of the textarea when i press tab key. But what happens is
pressing the tab key insdie the textarea is it moves by a tab space. I want
override this feature. Like whenever i press the tab key it should move to
the next focussable component. Any idea or workaround would be of much help
to me.
wkr
Srinivasan
-Original Message-
From: Steve Barrett [mailto:[EMAIL PROTECTED]]
Sent: 05 December 2001 09:58
To: Samivelu, Srinivasan
Subject: Re: JTextArea
one solution would be
jta = new JTextArea () {
public boolean isFocusTraversable () { return false; }};
--- Samivelu, Srinivasan [EMAIL PROTECTED] wrote:
Dear All
I am using JTextArea in my program. The textarea is non editable.
And when I press the tab key i want the focus to be moved to the
next
focussable component.
Any workaround or code snippet to set the focus to the next
focussable component on clicking the tab key.
Thanks in advance
Srinivasan
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