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Replies:
11
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Last Post:
Dec 26, 2006 6:02 AM
by: stayer
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System PLAF not GTK under Linux?
Posted:
Dec 18, 2006 5:25 AM
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I would have thought that the system PLAF for Linux environments would be GTK but on my Fedora Core 6 machine running KDE 3.5.5 and Java 6.0 FCS this UIManager.getSystemLookAndFeelClassName() returns MetalLookAndFeel.
Is this correct? Why is it Metal instead of GTK?
--
And loving it,
qu0ll
______________________________________________
qu0llSixFour@gmail.com
(Replace the "SixFour" with numbers to email)
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Re: System PLAF not GTK under Linux?
Posted:
Dec 18, 2006 5:51 AM
in response to: qu0ll
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It depends on whether native GTK L&F is available on your machine.
Run this simple test
[CODE]
import java.awt.Toolkit;
import sun.awt.UNIXToolkit;
public class CheckGTK
{
public static void main(String[] args)
{
Toolkit toolkit = Toolkit.getDefaultToolkit();
if(toolkit instanceof UNIXToolkit)
System.out.println( "Is Native GTK = " + ((UNIXToolkit)toolkit).checkGTK());
}
}
[/CODE]
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Re: System PLAF not GTK under Linux?
Posted:
Dec 18, 2006 5:59 AM
in response to: stayer
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That program returns true. Does that mean GTK should be the system PLAF on my machine?
--
And loving it,
qu0ll
______________________________________________
qu0llSixFour@gmail.com
(Replace the "SixFour" with numbers to email)
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Re: System PLAF not GTK under Linux?
Posted:
Dec 18, 2006 7:04 AM
in response to: qu0ll
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No. It just means that your system supports native GTK L&F.
But why UIManager.getSystemLookAndFeelClassName() returns MetalLookAndFee is another topic of investigation.
I should look into it a bit closer.
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Re: System PLAF not GTK under Linux?
Posted:
Dec 18, 2006 10:19 AM
in response to: qu0ll
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As you have found, we only return GTK as the system look and feel if
you're running under GNOME. There's an environment variable we look for
that controls this.
-Scott
swing@javadesktop.org wrote:
> I would have thought that the system PLAF for Linux environments would be GTK but on my Fedora Core 6 machine running KDE 3.5.5 and Java 6.0 FCS this UIManager.getSystemLookAndFeelClassName() returns MetalLookAndFeel.
>
> Is this correct? Why is it Metal instead of GTK?
>
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Re: System PLAF not GTK under Linux?
Posted:
Dec 18, 2006 8:17 PM
in response to: Scott Violet
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Scott, why is this so? The GTK PLAF seems to pick up the KDE look and feel and system colours correctly. It seems more logical to have it as the system PLAF.
--
And loving it,
qu0ll
______________________________________________
qu0llSixFour@gmail.com
(Replace the "SixFour" with numbers to email)
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Re: System PLAF not GTK under Linux?
Posted:
Dec 21, 2006 5:19 AM
in response to: qu0ll
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Scott, I received an email to say that you had replied to this thread but before I got a chance to read it the server seems to have had a bit of a hiccup and it's gone missing.
Could you please post that reply again?
--
And loving it,
qu0ll
______________________________________________
qu0llSixFour@gmail.com
(Replace the "SixFour" with numbers to email)
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Re: System PLAF not GTK under Linux?
Posted:
Dec 21, 2006 10:39 AM
in response to: qu0ll
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swing@javadesktop.org wrote:
> Scott, I received an email to say that you had replied to this thread
> but before I got a chance to read it the server seems to have had a bit
> of a hiccup and it's gone missing.
>
> Could you please post that reply again?
>
Sure thing. Here's my post again:
Some systems may ship GTK and KDE side by side, and tune the themes of
each toolkit so they look similar, but not all. Additionally we have no
way of detecting if GTK and KDE would look similar. As such, if you're
not running under a GNOME desktop, we don't make GTK the system look and
feel.
-Scott
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Re: System PLAF not GTK under Linux?
Posted:
Dec 22, 2006 6:55 AM
in response to: qu0ll
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I think, MetalLAF is still the SystelLF on Linux, because the GtkLAF is not mature enough to use it for all programs, which wants the Native-LAF and where the programmers have never tested it with the GtkLAF.
It is possible, that with the GtkLAF some things don´t work.
If you have a program which use System PLAF, then start it with
java -Dswing.systemlaf=com.sun.java.swing.plaf.gtk.GTKLookAndFeel -jar program.jar
if you want to run it with the GTK-LAF.
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Re: System PLAF not GTK under Linux?
Posted:
Dec 22, 2006 7:03 AM
in response to: theuserbl
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Hello theuserbl
Are you talking about JDK 6.0 GTK LaF ?
>It is possible, that with the GtkLAF some things don´t work.
What do you mean by that ?
Could you please be more specific
Thanks
alexp
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Re: System PLAF not GTK under Linux?
Posted:
Dec 23, 2006 7:34 AM
in response to: alexfromsun
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I also think thet the new (6.0) GTK-Laf isn't ready for prime time.
Not because of an incomplete implementation or stability issues just because its that slow.
When running larger Swing-Apps with GTK-Laf theres a visible difference in performance and running the MigLayout-Swing-Benchmark (using the server-compiler) 350ms for metal/steel vs. ~4000ms for GTK-Laf per run.
An oprofile run showed that a lot of time is spent inside of GTK's libraries, so I even can't blame SUN for this. They did it as well as the underlaying system allowed.
lg Clemens
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Re: System PLAF not GTK under Linux?
Posted:
Dec 26, 2006 6:02 AM
in response to: theuserbl
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You can also use another flag:
-Dswing.defaultlaf=com.sun.java.swing.plaf.gtk.GTKLookAndFeel
And your programs will use GTK L&F without setting any specific L&F in the code. Java will pick up this system setting and set the L&F to GTK L&F.
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