Thread: [java-gnome-hackers] GtkWindow XID
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From: Goundy <go...@gm...> - 2009-10-24 12:52:56
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Hi,
I'm trying to use gstreamer in a simple java-gnome app by using
gstreamer-java. But to be able to embed a video into a Window I've to
get back its native xid.
So, I modified Java-gnome to implement this:
in GtkWindow.java I added:
static public final long getWindowXID (Window w){
return pointerOf(w);
}
and in Window.java I added:
public long getWindowXID (){
return GtkWindow.getWindowXID(this);
}
But when I use this id to embed the video X says BadWindow.
Am I getting the xid the right way ?
Thanks in advance
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From: Emmanuel R. <emm...@gm...> - 2009-10-24 13:16:35
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On Sat, Oct 24, 2009 at 2:52 PM, Goundy <go...@gm...> wrote:
> Hi,
>
> I'm trying to use gstreamer in a simple java-gnome app by using
> gstreamer-java. But to be able to embed a video into a Window I've to
> get back its native xid.
> So, I modified Java-gnome to implement this:
>
> in GtkWindow.java I added:
> static public final long getWindowXID (Window w){
> return pointerOf(w);
> }
>
> the XID has to be taken from GdkDrawable, from which GdkWindow inherits.
You used a GtkWindow, instead of GdkWindow. I've checked the doc of
GdkDrawable [1] and it is missing the accessor for xid wich in C is provide
by the function gdk_x11_drawable_get_xid [2]. Without that accesor you will
not be able to take the XID of a window.
Here's an example on how to embed Gstreamer in a custom Gtk2 application:
http://github.com/potyl/perl-GStreamer-Interfaces/blob/master/examples/gst-video-sample.pl
The code in Perl, but you should be able to understand easily what's going
on.
[1]
http://java-gnome.sourceforge.net/4.0/doc/api/org/gnome/gdk/Drawable.html
[2]
http://library.gnome.org/devel/gdk/unstable/gdk-X-Window-System-Interaction.html#gdk-x11-drawable-get-xid
--
Emmanuel Rodriguez
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From: Goundy <go...@gm...> - 2009-10-24 14:23:16
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Emmanuel Rodriguez thank you very much, you helped lot
Emmanuel Rodriguez wrote:
>
>
> the XID has to be taken from GdkDrawable, from which GdkWindow
> inherits. You used a GtkWindow, instead of GdkWindow. I've checked the
> doc of GdkDrawable [1] and it is missing the accessor for xid wich in
> C is provide by the function gdk_x11_drawable_get_xid [2]. Without
> that accesor you will not be able to take the XID of a window.
>
>
>
> --
> Emmanuel Rodriguez
The only problem now is that I'm getting:
Exception in thread "main" java.lang.UnsatisfiedLinkError:
org.gnome.gdk.GdkDrawable.gdk_x11_drawable_get_xid(J)I
at org.gnome.gdk.GdkDrawable.gdk_x11_drawable_get_xid(Native Method)
at org.gnome.gdk.GdkDrawable.getXID(GdkDrawable.java:508)
And I added a call to that native function as:
GdkWindow.java:
static final long getXID(Drawable self) {
long result;
if (self == null) {
throw new IllegalArgumentException("self can't be null");
}
synchronized (lock) {
result = gdk_x11_drawable_get_xid(pointerOf(self));
return result;
}
}
Any ideas ?
Thanks
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From: Goundy <go...@gm...> - 2009-10-24 14:24:26
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Goundy wrote:
> Emmanuel Rodriguez thank you very much, you helped lot
>
> Emmanuel Rodriguez wrote:
>>
>>
>> the XID has to be taken from GdkDrawable, from which GdkWindow
>> inherits. You used a GtkWindow, instead of GdkWindow. I've checked
>> the doc of GdkDrawable [1] and it is missing the accessor for xid
>> wich in C is provide by the function gdk_x11_drawable_get_xid [2].
>> Without that accesor you will not be able to take the XID of a window.
>>
>>
>>
>> --
>> Emmanuel Rodriguez
> The only problem now is that I'm getting:
> Exception in thread "main" java.lang.UnsatisfiedLinkError:
> org.gnome.gdk.GdkDrawable.gdk_x11_drawable_get_xid(J)I
> at org.gnome.gdk.GdkDrawable.gdk_x11_drawable_get_xid(Native Method)
> at org.gnome.gdk.GdkDrawable.getXID(GdkDrawable.java:508)
>
> And I added a call to that native function as:
>
> GdkWindow.java:
>
> static final long getXID(Drawable self) {
> long result;
>
> if (self == null) {
> throw new IllegalArgumentException("self can't be null");
> }
>
> synchronized (lock) {
> result = gdk_x11_drawable_get_xid(pointerOf(self));
>
> return result;
> }
> }
>
> Any ideas ?
> Thanks
>
Oh Sorry, I meant GdkDrawable.java *
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From: Emmanuel R. <emm...@gm...> - 2009-10-24 17:01:12
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On Sat, Oct 24, 2009 at 4:22 PM, Goundy <go...@gm...> wrote: > Emmanuel Rodriguez thank you very much, you helped lot > > Emmanuel Rodriguez wrote: > > > > > > the XID has to be taken from GdkDrawable, from which GdkWindow > > inherits. You used a GtkWindow, instead of GdkWindow. I've checked the > > doc of GdkDrawable [1] and it is missing the accessor for xid wich in > > C is provide by the function gdk_x11_drawable_get_xid [2]. Without > > that accesor you will not be able to take the XID of a window. > > > > > > > > -- > > Emmanuel Rodriguez > The only problem now is that I'm getting: > Exception in thread "main" java.lang.UnsatisfiedLinkError: > org.gnome.gdk.GdkDrawable.gdk_x11_drawable_get_xid(J)I > at org.gnome.gdk.GdkDrawable.gdk_x11_drawable_get_xid(Native Method) > at org.gnome.gdk.GdkDrawable.getXID(GdkDrawable.java:508) > java-gnome is probably not linking against gdk-x11 Try to see if you can link it with gdk-x11-2.0 from pkg-config You can find the exact linker flags by running: pkg-config --libs gdk-x11-2.0 -- Emmanuel Rodriguez |
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From: Goundy <go...@gm...> - 2009-10-25 10:34:43
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Morning, Emmanuel Rodriguez wrote: > > > java-gnome is probably not linking against gdk-x11 > Try to see if you can link it with gdk-x11-2.0 from pkg-config > > You can find the exact linker flags by running: > > pkg-config --libs gdk-x11-2.0 > > Actually it is, I've: goundy@localhost ~ $ pkg-config --libs gdk-x11-2.0 -lgdk-x11-2.0 -lgdk_pixbuf-2.0 -lpangocairo-1.0 -lpango-1.0 -lcairo -lgobject-2.0 -lgmodule-2.0 -lglib-2.0 That's kinda weird. |
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From: Emmanuel R. <emm...@gm...> - 2009-10-25 12:03:40
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On Sun, Oct 25, 2009 at 12:34 PM, Goundy <go...@gm...> wrote: > Morning, > > Emmanuel Rodriguez wrote: > > > > > > java-gnome is probably not linking against gdk-x11 > > Try to see if you can link it with gdk-x11-2.0 from pkg-config > > > > You can find the exact linker flags by running: > > > > pkg-config --libs gdk-x11-2.0 > > > > > Actually it is, I've: > goundy@localhost ~ $ pkg-config --libs gdk-x11-2.0 > -lgdk-x11-2.0 -lgdk_pixbuf-2.0 -lpangocairo-1.0 -lpango-1.0 -lcairo > -lgobject-2.0 -lgmodule-2.0 -lglib-2.0 > > That's kinda weird. > No exactly, this just means that you have the libraries installed, but java-gnome might not be using them (linked). Check with ldd if the java-gnome .so is linked with gdk-x11 ldd tmp/libgtkjni-*.so | grep gdk-x11-2.0 If ldd doesn't show the file then it isn't linked. Try to link it your self by hand: rm tmp/libgtkjni-*.so LDFLAGS=`pkg-config --libs gdk-x11-2.0` build/faster If ldd shows the file in the dependency list then there's something strange going on. -- Emmanuel Rodriguez |
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From: Goundy <go...@gm...> - 2009-10-25 12:43:16
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Emmanuel Rodriguez wrote:
> No exactly, this just means that you have the libraries installed, but
> java-gnome might not be using them (linked).
>
> Check with ldd if the java-gnome .so is linked with gdk-x11
> ldd tmp/libgtkjni-*.so | grep gdk-x11-2.0
>
> If ldd doesn't show the file then it isn't linked. Try to link it your
> self by hand:
> rm tmp/libgtkjni-*.so
> LDFLAGS=`pkg-config --libs gdk-x11-2.0` build/faster
>
> If ldd shows the file in the dependency list then there's something
> strange going on.
>
goundy@localhost ~/java-gnome/working/tmp $ ldd libgtkjni-4.0.12-dev.so
| grep gdk-x11
libgdk-x11-2.0.so.0 => /usr/lib/libgdk-x11-2.0.so.0 (0xb78ec000)
that's odd :°)
Btw, I haven't modified any .def file yet, I just added the new accessor
in GdkDrawable.java and then linked (in eclipse) the java-gnome project
to my testing project.
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From: Emmanuel R. <emm...@gm...> - 2009-10-25 12:49:26
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On Sun, Oct 25, 2009 at 2:42 PM, Goundy <go...@gm...> wrote: > Emmanuel Rodriguez wrote: > >> No exactly, this just means that you have the libraries installed, but >> java-gnome might not be using them (linked). >> >> Check with ldd if the java-gnome .so is linked with gdk-x11 >> ldd tmp/libgtkjni-*.so | grep gdk-x11-2.0 >> >> If ldd doesn't show the file then it isn't linked. Try to link it your >> self by hand: >> rm tmp/libgtkjni-*.so >> LDFLAGS=`pkg-config --libs gdk-x11-2.0` build/faster >> >> If ldd shows the file in the dependency list then there's something >> strange going on. >> >> goundy@localhost ~/java-gnome/working/tmp $ ldd libgtkjni-4.0.12-dev.so | grep gdk-x11 > libgdk-x11-2.0.so.0 => /usr/lib/libgdk-x11-2.0.so.0 (0xb78ec000) > that's odd :°) > Btw, I haven't modified any .def file yet, I just added the new accessor in > GdkDrawable.java and then linked (in eclipse) the java-gnome project to my > testing project. > Are you sure then that eclipse is picking up the right gtkjini.so file? Did you install your new bindings? -- Emmanuel Rodriguez |
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From: Goundy <go...@gm...> - 2009-10-25 12:57:58
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Emmanuel Rodriguez wrote: > > Are you sure then that eclipse is picking up the right gtkjini.so file? > Did you install your new bindings? > Oh my! when I rebuild my branch, actually my method is being erased as the GdkDrawable file gets replace by the new generated one which doesn't contain my method. I guess I have to edit the source .def file to keep my method right ? |
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From: Emmanuel R. <emm...@gm...> - 2009-10-25 13:46:25
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On Sun, Oct 25, 2009 at 2:57 PM, Goundy <go...@gm...> wrote: > Emmanuel Rodriguez wrote: > >> >> Are you sure then that eclipse is picking up the right gtkjini.so file? >> Did you install your new bindings? >> >> > Oh my! when I rebuild my branch, actually my method is being erased as the > GdkDrawable file gets replace by the new generated one which doesn't contain > my method. > I guess I have to edit the source .def file to keep my method right ? > I think so, I haven't used the java-gnome bindings in a long time. I wish that someone else that's using the bindings could help you :( -- Emmanuel Rodriguez |
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From: Goundy <go...@gm...> - 2009-10-25 13:49:55
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Emmanuel Rodriguez wrote:
> On Sun, Oct 25, 2009 at 2:57 PM, Goundy <go...@gm...
> <mailto:go...@gm...>> wrote:
>
> Emmanuel Rodriguez wrote:
>
>
> Are you sure then that eclipse is picking up the right
> gtkjini.so file?
> Did you install your new bindings?
>
>
> Oh my! when I rebuild my branch, actually my method is being
> erased as the GdkDrawable file gets replace by the new generated
> one which doesn't contain my method.
> I guess I have to edit the source .def file to keep my method right ?
>
> I think so, I haven't used the java-gnome bindings in a long time.
> I wish that someone else that's using the bindings could help you :(
>
> --
> Emmanuel Rodriguez
Okay thank you Emmanuel, you helped a lot :P
Well, the generator is giving me:
static final FIXME getXid(Drawable self) throws BlacklistedMethodError {
throw new BlacklistedMethodError("long");
}
and I have the following code in GdkDrawable.defs:
(define-method get_xid
(of-object "GdkDrawable")
(c-name "gdk_x11_drawable_get_xid")
(caller-owns-return #t)
(return-type "long")
)
Am I missing something here ?
Thanks
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From: Goundy <go...@gm...> - 2009-10-25 13:59:56
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Goundy wrote:
> Emmanuel Rodriguez wrote:
>> On Sun, Oct 25, 2009 at 2:57 PM, Goundy <go...@gm...
>> <mailto:go...@gm...>> wrote:
>>
>> Emmanuel Rodriguez wrote:
>>
>>
>> Are you sure then that eclipse is picking up the right
>> gtkjini.so file?
>> Did you install your new bindings?
>>
>>
>> Oh my! when I rebuild my branch, actually my method is being
>> erased as the GdkDrawable file gets replace by the new generated
>> one which doesn't contain my method.
>> I guess I have to edit the source .def file to keep my method
>> right ?
>>
>> I think so, I haven't used the java-gnome bindings in a long time.
>> I wish that someone else that's using the bindings could help you :(
>>
>> --
>> Emmanuel Rodriguez
> Okay thank you Emmanuel, you helped a lot :P
>
> Well, the generator is giving me:
>
> static final FIXME getXid(Drawable self) throws
> BlacklistedMethodError {
> throw new BlacklistedMethodError("long");
> }
>
> and I have the following code in GdkDrawable.defs:
>
> (define-method get_xid
> (of-object "GdkDrawable")
> (c-name "gdk_x11_drawable_get_xid")
> (caller-owns-return #t)
> (return-type "long")
> )
>
> Am I missing something here ?
> Thanks
>
Oh I get the correct one :P
(define-method get_xid
(of-object "GdkDrawable")
(c-name "gdk_x11_drawable_get_xid")
(caller-owns-return #t)
(return-type "gulong")
)
Is fine, it gives:
static final long getXid(Drawable self) {
long result;
if (self == null) {
throw new IllegalArgumentException("self can't be null");
}
synchronized (lock) {
result = gdk_x11_drawable_get_xid(pointerOf(self));
return result;
}
}
private static native final long gdk_x11_drawable_get_xid(long self);
But when I build java-gnome I get:
generated/bindings/org/gnome/gdk/GdkDrawable.c: In function
'Java_org_gnome_gdk_GdkDrawable_gdk_1x11_1drawable_1get_1xid':
generated/bindings/org/gnome/gdk/GdkDrawable.c:1044: error: implicit
declaration of function 'gdk_x11_drawable_get_xid'
compilation terminated due to -Wfatal-errors.
make: *** [build-java] Error 1
Which is really weird...
Ideas are welcome :)
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From: Emmanuel R. <emm...@gm...> - 2009-10-25 14:12:36
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On Sun, Oct 25, 2009 at 3:59 PM, Goundy <go...@gm...> wrote:
> Goundy wrote:
> > and I have the following code in GdkDrawable.defs:
> >
> > (define-method get_xid
> > (of-object "GdkDrawable")
> > (c-name "gdk_x11_drawable_get_xid")
> > (caller-owns-return #t)
> > (return-type "long")
> > )
> >
>
> Am I missing something here ?
> > Thanks
> >
> Oh I get the correct one :P
> (define-method get_xid
> (of-object "GdkDrawable")
> (c-name "gdk_x11_drawable_get_xid")
> (caller-owns-return #t)
> (return-type "gulong")
> )
>
That fix the first problem: the function is now generated.
> Is fine, it gives:
>
> static final long getXid(Drawable self) {
> long result;
>
> if (self == null) {
> throw new IllegalArgumentException("self can't be null");
> }
>
> synchronized (lock) {
> result = gdk_x11_drawable_get_xid(pointerOf(self));
>
> return result;
> }
> }
>
> private static native final long gdk_x11_drawable_get_xid(long self);
>
> But when I build java-gnome I get:
> generated/bindings/org/gnome/gdk/GdkDrawable.c: In function
> 'Java_org_gnome_gdk_GdkDrawable_gdk_1x11_1drawable_1get_1xid':
> generated/bindings/org/gnome/gdk/GdkDrawable.c:1044: error: implicit
> declaration of function 'gdk_x11_drawable_get_xid'
> compilation terminated due to -Wfatal-errors.
> make: *** [build-java] Error 1
>
> Which is really weird...
> Ideas are welcome :)
>
> Edit the file jni/bindings_java.h and add the following include after the
other ones already there:
#include <gdk/gdkx.h>
--
Emmanuel Rodriguez
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From: Goundy <go...@gm...> - 2009-10-25 14:24:33
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Emmanuel Rodriguez wrote: > > Edit the file jni/bindings_java.h and add the following include after > the other ones already there: > #include <gdk/gdkx.h> > > > -- > Emmanuel Rodriguez Emmanuel, You nailed it ! That worked \o/ Bad damn, I've been spending too much time for nothing... X is still giving a BadWindow... Anyway I better digg a bit arround this :) Thanks for help emmanuel ;) |
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