Re: [directfb-users] Problems in GdkWindow Events with Gtk - DirectFb backend

["Mike Emmel" <mike emmel gmail com>]

Problem solved the child gdk windows are not directfb windows and will
never get directfb events.
Only top levels.

Not a bug.


On Dec 4, 2007 10:15 PM, Sreenivas Chowdary <sreenivas pachva gmail com> wrote:
> Hi Mike,
>
> Below is the code snippet which i am trying.
> In this code i am not getting events on child GdkWindow.
>
>
> #include <gtk/gtk.h>
> #include <gdk/gdk.h>
> #include <directfb.h>
>
> GdkFilterReturn child_handle_event( void *event1, GdkEvent *event2,
> gpointer userdata )
> {
>         printf("child_handle_event\n");
>         DFBWindowEvent *event = (DFBWindowEvent*)event1;
>         printf(" event->type %x \n",event->type);
>
>         switch (event->type)
>                 {
>                 case DWET_GOTFOCUS:
>                 printf("DWET_GOTFOCUS\n");
>                 break;
>
>                 case DWET_BUTTONDOWN:
>                 printf("DWET_BUTTONDOWN\n");
>                 break;
>
>                 case DWET_BUTTONUP:
>                 printf("DWET_BUTTONUP\n");
>                 break;
>
>                 case DWET_ENTER:
>                 printf("DWET_ENTER\n");
>                 break;
>
>                 case DWET_LEAVE:
>                 printf("DWET_LEAVE\n");
>                 break;
>
>                 case DWET_MOTION:
>                 printf("DWET_MOTION\n");
>                 break;
>
>                 case DWET_KEYDOWN:
>                 printf("DWET_KEYDOWN\n");
>                 break;
>
>                 case DWET_KEYUP:
>                 printf("DWET_KEYUP\n");
>                 break;
>
>                 default:
>                 printf("default event %x \n", event->type);
>                 break;
>
>                 }
>
>         return GDK_FILTER_REMOVE;
> }
>
> int main(int argc, char* argv[])
> {
>
>         GdkWindow *parent, *child;
>         GdkWindowAttr attr;
>
>         gtk_init(&argc, &argv);
>
>         attr.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK |
>         GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK |
> GDK_BUTTON_PRESS_MASK |
>         GDK_BUTTON_RELEASE_MASK | GDK_KEY_PRESS_MASK |GDK_KEY_RELEASE_MASK|
> GDK_ENTER_NOTIFY_MASK| GDK_LEAVE_NOTIFY_MASK;
>
>         attr.x = 100;
>         attr.y = 100;
>         attr.width = 800;
>         attr.height = 600;
>         attr.window_type = GDK_WINDOW_TOPLEVEL;
>         attr.wclass = GDK_INPUT_OUTPUT;
>         parent = gdk_window_new (NULL, &attr, GDK_WA_X | GDK_WA_Y);
> //      gdk_window_add_filter (parent, child_handle_event, NULL);
>
>         attr.event_mask = GDK_VISIBILITY_NOTIFY_MASK | GDK_EXPOSURE_MASK |
>         GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK |
> GDK_BUTTON_PRESS_MASK |
>         GDK_BUTTON_RELEASE_MASK | GDK_KEY_PRESS_MASK |GDK_KEY_RELEASE_MASK|
> GDK_ENTER_NOTIFY_MASK| GDK_LEAVE_NOTIFY_MASK;
>
>         attr.x = 200;
>         attr.y = 200;
>         attr.width = 400;
>         attr.height = 300;
>         attr.window_type = GDK_WINDOW_CHILD;
>         attr.wclass = GDK_INPUT_OUTPUT;
>
>         child = gdk_window_new (parent, &attr, GDK_WA_X | GDK_WA_Y);
>
>         gdk_window_add_filter (child, child_handle_event, NULL);
>         gdk_window_show (child);
>         gdk_window_show (parent);
>         gtk_main();
>         return 0;
> }
>
>
> Thanks,
> Sreenivas
>
>
>
> On Dec 4, 2007 11:18 PM, Mike Emmel <mike emmel gmail com> wrote:
> > Child windows are virtual DirectFB right now only supports top level
> > windows as real DFB windows.
> >
> > Can you send the code snippet your using to create the child.
> > I'd check to see if the window actually got focus. This looks like a
> > focus problem to me.
> >
> >
> >
> > On Dec 4, 2007 6:23 AM, Sreenivas Chowdary <sreenivas pachva gmail com> wrote:
> > > Hi Denis,
> > >
> > > Thank you for the patch which u sent.
> > > With this patch i can able to get events on GdkWindow which was
> > > created as GDK_WINDOW_TOPLEVEL.
> > > If i create a GdkWindow with GDK_WINDOW_CHILD then events are not coming.
> > > Do you have any idea about this?
> > >
> > > Thanks & Regards
> > > Sreenivas
> > >
> > > On Dec 3, 2007 11:18 PM, Denis Oliver Kropp <dok directfb org> wrote:
> > > > Sreenivas Chowdary wrote:
> > > > > Yeah Even i am getting events on GtkWidget in half way like
> > > > > expose-event, keypress-event and key-release event and remaining
> > > > > events like button-press-event , button-release-event etc.. or not
> > > > > getting.
> > > >
> > > > Either it has always been broken or something changed in Gdk or it broke in GdkDirectFB.
> > > >
> > > > I just looked into the Gdk Backends and saw that the filters are not applied at all
> > > > in the DirectFB Backend.
> > > >
> > > > Please try the attached patch.
> > > >
> > > > --
> > > > Best regards,
> > > >   Denis Oliver Kropp
> > > >
> > > > .------------------------------------------.
> > > > | DirectFB - Hardware accelerated graphics |
> > > > | http://www.directfb.org/                 |
> > > > "------------------------------------------"
> > > >
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> > >
> >
>