[maemo-developers] Some (easy?) problems with GTK+/Hildon

[From: Christian Antila]

Hello everyone!

I'm developing an application for a N800/N810 for one of my
customers. As this is a commercial project with a limited budget there is no
time for developing a new GUI and instead I'm trying to use GTK+/Hildon.
But I have some problems that I really can't figure out how to solve.

1) When i create a window I do:

gtk_init(&argc, &argv);
program = HILDON_PROGRAM(hildon_program_get_instance());
g_set_application_name("Blablabla");
window1 = HILDON_WINDOW(hildon_window_new());
hildon_program_add_window(program, window1);

Eveything works fine and I get my window... but.. when i try to create
another window, with the last two lines repeated, something goes wrong.
Actually I get a window and eveything seems to work fine in GUI, but in the
console it says:

main[4419]: GLIB WARNING ** Gdk - gdkdrawable-x11.c:878 drawable is not a
pixmap or window

And thats very annoying as I use the console for other stuff. I can't figure
out what I'm doing wrong what I shall do to avoid the warning messages.
Maybe someone knowns?

I also get _exactly_ the same warning a lot of other times in the
application, but I guess the best solution is just to comment out
everything else and try to solve the problem the first time it occurs
in my application.


2) The on screen keyboard and/or hardware keyboard is not good for my
application. Because of that reason I've designed my own On Screen Keyboard
that works perfect and integrates smoothly with my application.
Until now I have only had one text input (GtkEntry) per window. But now I
have figured out that one of my windows will need at least two
GtkEntry's. Of course I want to send the events to the GtkEntry that
is focused via the touch screen
. The problem is that I can't figure out how to "simulate a keypress"
and let GTK send the event to the focused widget.
Another solution would of course be to let the on screen keyboard figure out
which widget is focused and send the events directly to that widget, but
that's ugly as hell and I don't want to hard code my on screen keyboard to
the widgets in the application.

3) Is there any easy way to set the position of a window? It would be
nice to slide a window as on the iPhone
(:-D), but it seems like it's not possible to set the window position at
all? Do I have to take a screenshot of a window and slide that
screenshot instead of sliding the whole window?

4) For the moment I use:
system("gconftool --type bool --set /system/osso/af/keyboard-attached
true");
to disable the on screen keyboard, but that disables it for the whole
system, and I only want to disable it for my application. Is there any way
do to that?

Best regards,
Christian Antila
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