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Can't shake off persistent focus on a button [message #442566]

Wed, 08 September 2004 04:25

Eclipse User

Can anyone help me with a SWT runtime / Mac OS X GUI issue.

I'm doing a port of my software to MacOS X 10.3.5 and experiencing unusual
SWT runtime behaiviour when my first window appears. A button in the top
right hand corner of my window (which happens to be our application's help
button with an icon in it) is consistantly getting focus (making the icon
in it flash rapidly). If you tab out of it, the focus returns immediately
to that button. This focus issue is also interfering with the ability to
cleanly click other buttons (you may have to try a couple of times before
the request registers).

The same software, particularly the GUI part which remains unchanged
across platforms, works without this issue on Linux GTK and Solaris Motif
and GTK (I have my own port of SWT for Solaris GTK - details in the
eclipse archives).

I use the latest Iteration release of the SWT runtime binaries
(swt-I20040907) (and have tried the 3.0 amd 3.1M1 releases which exhibit
the same fault).
I use JVM 1.4.2 Update 1 on MacOS X 10.3.5.
Our GUI is rendered through a jelly script and at this early stage I
suspect the culprit is a jelly command that looks like this
${shell.pack()} which is called towards the end of my jelly script.
The JVM continuously produces the following output:
Exception in thread "AWT-AppKit" org.eclipse.swt.SWTException: Invalid
thread access
at org.eclipse.swt.SWT.error(SWT.java:2691)
at org.eclipse.swt.SWT.error(SWT.java:2616)
at org.eclipse.swt.SWT.error(SWT.java:2587)
at org.eclipse.swt.widgets.Widget.error(Widget.java:546)
at org.eclipse.swt.widgets.Widget.checkWidget(Widget.java:297)
at
org.eclipse.swt.widgets.Control.internal_new_GC(Control.java :1065)
at org.eclipse.swt.graphics.GC.carbon_new(GC.java:148)
at org.eclipse.swt.widgets.Button.drawWidget(Button.java:325)
at
org.eclipse.swt.widgets.Widget.kEventControlDraw(Widget.java :867)
at org.eclipse.swt.widgets.Widget.controlProc(Widget.java:314)
at org.eclipse.swt.widgets.Display.controlProc(Display.java:743 )

Has anyone come across this before? My application is too big/complex to
detail here, but I'm more than happy to provide a basic prototype of the
problem if nobody can help.

Cheers,
Arthur.

Re: Can't shake off persistent focus on a button [message #443513 is a reply to message #442566]

Mon, 27 September 2004 02:24

Eclipse User

Turns out the java_swt launcher (the SWT hack for mac) is unable to
faithfully reproduce all java error messages as it is after all a wrapper
to the real java command. Errors that should have been appearing on the
console (or even the terminal session for that matter) just weren't
happenning. Attaching a stdout/err stream reader to my code identified
that the initial problem I raised on this posting was not related to SWT.

Re: Can't shake off persistent focus on a button [message #443716 is a reply to message #443513]

Wed, 29 September 2004 13:27

Eclipse User

Thanks for letting us know. I was worried we had some strange bug but had
no idea how to persue it with you. Glad there was a good outcome.

"Arthur Gouros" <Arthur.Gouros@managesoft.com> wrote in message
news:cj8bme$5fm$1@eclipse.org...
> Turns out the java_swt launcher (the SWT hack for mac) is unable to
> faithfully reproduce all java error messages as it is after all a wrapper
> to the real java command. Errors that should have been appearing on the
> console (or even the terminal session for that matter) just weren't
> happenning. Attaching a stdout/err stream reader to my code identified
> that the initial problem I raised on this posting was not related to SWT.
>

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