<AWT Dev> Bug 6913179, FileDialog uses native GTK under Linux: first patch

[Pavel Porvatov]

Hi Costantino,

Thanks for the patch. We will take a look at it and give a response in a 
couple of days.

Thanks, Pavel
> Hello,
>
> this is a first version of my patch for the issue 6913179: The
> java.awt.FileDialog should use native GTK file chooser on linux
> distros.
>
> There are still some problems:
>
> 1) The FileDialog isn't disposed. I cannot understand why, because in
> 'sun_awt_X11_GtkFileDialogPeer.c#handle_response' I call:
> 	fp_gtk_widget_hide(dialog);
> 	fp_gtk_widget_destroy(dialog);
> 	fp_gtk_main_quit();
>
>
> 2) The shortcut "Search" on the left up side is missing because we
> should initialize the thread system in GLib by calling:
>
>   if (!g_thread_supported ()) {
>   	g_thread_init (NULL);
>   }
>
> but I wasn't able to find a way to dynamically load these functions
> (they are linked with gthread-2.0).
>
>
> Apart these two issues, the new GtkFileDialog should be already usable
> and I'm looking forward to receiving your feedback.
> Could you please (or somebody else at Sun) help me to solve these
> remaining problems? I spent the last two nights without success: my
> knowledge of C and GTK is quite limited and alone I'll never succeed.
>
>
> Last but not least, I've some problems with the incremental make.
> When I make a full build, the output goes to
>  	~/openjdk/jdk7/mytl/build/linux-i586
> while with and incremental make in a subfolder, the result is in
> 	~/openjdk/jdk7/mytl/jdk/build/linux-i586
>
> When a run a class using the first location (output of full build)
> it'all right, but in the second case I get this exception:
> /home/c.cerbo/openjdk/jdk7/mytl/jdk/build/linux-i586/bin/java -cp bin
> sun.awt.X11.FileDialogTest
> Exception in thread "main" java.util.ServiceConfigurationError:
> sun.java2d.pipe.RenderingEngine: Provider
> sun.java2d.pisces.PiscesRenderingEngine not found
> 	at java.util.ServiceLoader.fail(ServiceLoader.java:231)
> 	at java.util.ServiceLoader.access$400(ServiceLoader.java:181)
> 	at java.util.ServiceLoader$LazyIterator.next(ServiceLoader.java:367)
> 	at java.util.ServiceLoader$1.next(ServiceLoader.java:438)
> 	at sun.java2d.pipe.RenderingEngine$1.run(RenderingEngine.java:144)
> 	at java.security.AccessController.doPrivileged(Native Method)
> 	at sun.java2d.pipe.RenderingEngine.getInstance(RenderingEngine.java:120)
> 	at sun.java2d.pipe.LoopPipe.<clinit>(LoopPipe.java:52)
> 	at sun.java2d.SurfaceData.<clinit>(SurfaceData.java:400)
> 	at sun.awt.X11GraphicsConfig.<clinit>(X11GraphicsConfig.java:79)
> 	at sun.awt.X11GraphicsDevice.makeDefaultConfiguration(X11GraphicsDevice.java:244)
> 	at sun.awt.X11GraphicsDevice.getDefaultConfiguration(X11GraphicsDevice.java:214)
> 	at java.awt.Window.initGC(Window.java:466)
> 	at java.awt.Window.init(Window.java:486)
> 	at java.awt.Window.<init>(Window.java:437)
> 	at java.awt.Window.<init>(Window.java:591)
> 	at java.awt.Dialog.<init>(Dialog.java:664)
> 	at java.awt.Dialog.<init>(Dialog.java:408)
> 	at java.awt.FileDialog.<init>(FileDialog.java:177)
> 	at java.awt.FileDialog.<init>(FileDialog.java:141)
> 	at sun.awt.X11.FileDialogTest.main(FileDialogTest.java:9)
>
>
> Sometimes I have also to change the permissions:
> 	/bin/cp: cannot create regular file
> `../../../build/linux-i586/tmp/modules/awt/lib/fontconfig.bfc':
> Permission denied
> 	make: *** [../../../build/linux-i586/lib/fontconfig.bfc] Error 1
>
> That means that I have to make each time a full build, and you can
> imagine how time consuming is this!
>
> Thanks in advance for your collaboration,
> Costantino
>