[gtk-server] Re: R: Re: GtkTextView and focus-out-event
- From: Peter van Eerten <administrator@xxxxxxxxxxxxxx>
- To: gtk-server@xxxxxxxxxxxxx
- Date: Sat, 12 Nov 2005 19:41:02 +0100
Hi Leonardo,
Well I could reproduce the problem now, also in Linux. It seems that this is not
a GTK bug, but a consequence of the blinking timeout of the cursor in the
TextView widget. The complete error I receive in Linux is this:
.....
(<unknown>:1880): Gtk-WARNING **: GtkTextView - did not receive focus-out-event.
If you connect a handler to this signal, it must return FALSE so the entry gets
the event as well
Gtk-ERROR **: file gtktextview.c: line 4482 (blink_cb): assertion failed:
(GTK_WIDGET_HAS_FOCUS (text_view))
aborting...
.....
There is a Perl newsgroup entry explaining the issue:
http://mail.gnome.org/archives/gtk-perl-list/2005-September/msg00143.html
There are 2 solutions none of which can be realized with the current version of
the GTK-server:
1) continue your program using g_idle_add(). This function however needs an
address of a new function, which never can be given with interpreted languages;
2) connect the signal with 'g_signal_connect_after' as you suggested yourself
before. The GTK-server currently only uses 'g_signal_connect', so a change on my
side is needed.
The last option is easy to implement, I could add an extra internal call like
"gtk_server_connect_after" with a similar syntax. Or the current implementation
could be changed to 'g_signal_connect_after' completely, but I have to
investigate the consequences of this change.
As soon as I have a fix ready I'll let you know.
Br,
Peter
Citeren Leonardo Cecchi <leonardoce@xxxxxxxxxxxx>:
> Thanks Peter for the reply!
> To reproduce the problem on your e-text reader in newlisp I had:
>
> 1) Commented the lines
>
> # LEONARDO (GTK:gtkp "gtk_text_view_set_editable" entry 0)
> # LEONARDO (GTK:gtkp "gtk_text_view_set_cursor_visible" entry 0)
>
> 2) Added the line
>
> # ADD LEONARDO
> (GTK:gtkp "gtk_server_connect" entry "focus-out-event Trial")
>
> To reproduce the problem you can:
>
> 1) Place the focus in the textview (I also wrote some text)
> 2) Try to load a file
>
> I think the problem is in the blinking cursor..... so if it's not visible
> the issue doesn't show up.
> I have only one GTK version on my computer and the gtk_check_version say:
>
> Gtk+ version too new (major mismatch)
>
> I really don't know what's happening.
> I have Gtk 2.6.7 and I verified this version number with the Gtk Demo
> application.
> I have checked my path and in my harddisk I have found only one
> libgtk-win32-2.0-0.dll.
> I will try on linux and let you know the results.
>
> Thanks again and compliments for your e-text application.
>
> Leonardo
>
>
>
> -----Messaggio originale-----
> Da: gtk-server-bounce@xxxxxxxxxxxxx [mailto:gtk-server-bounce@xxxxxxxxxxxxx]
> Per conto di Peter van Eerten
> Inviato: sabato 12 novembre 2005 11.58
> A: gtk-server@xxxxxxxxxxxxx
> Oggetto: [gtk-server] Re: GtkTextView and focus-out-event
>
> Hi Leonardo,
>
> Unfortunately I cannot reproduce your problem. The system I use is Win2000,
> GTK-
> server 2.0.5 and GTK 2.6.8-1.
>
> In my e-text reader, which I programmed with newLisp, I can connect the
> 'focus-
> out-event' signal to the TextView widget without any warnings. My code looks
> like this:
>
> (GTK:gtkp "gtk_server_connect" entry "focus-out-event Trial")
>
> The variable 'entry' contains the pointer to the TextView widget. It is the
> last line in my TextView definitions. The logfile shows:
>
> ....
> SCRIPT: gtk_settings_get_default
> SERVER: 15617320
> SCRIPT: gtk_widget_set_name 15696056 textview
> SERVER: ok
> SCRIPT: gtk_server_connect 15696056 focus-out-event Trial
> SERVER: ok
> SCRIPT: gtk_frame_new NULL
> SERVER: 15779744
> ....
>
> The bug-report you mention concerns GTK 2.0.x, so I assume it is not valid
> for
> your GTK 2.6.x.
>
> So it appears you suffer from a GTK 2.0.x problem. You can check your
> current
> GTK version with the command "gtk_check_version".
>
> Please make sure you have only one GTK installation on your machine, and
> that
> you have the correct GTK DLL's in your path. If this is the case, maybe you
> could try to upgrade to the latest GTK environment, which is downloadable
> from
> http://gimp-win.sourceforge.net/.
>
> If all this does not work out, you could try to perform a 'grabfocus'
> command
> on the TextView first.
>
> Also you could try to use my e-text viewer with newLisp and add the same
> signal, to see if the problem occurs again.
>
> The GTK-server currently connects additional signals with
> the 'g_signal_connect' command. So connecting additional signals with
> the 'g_signal_connect_after' command cannot be performed (yet).
>
> Please let me the outcome of this problem.
>
> Best regards
> Peter
>
>
> Citeren Leonardo Cecchi <leonardoce@xxxxxxxxxxxx>:
>
> > Hi,
> >
> > I'm trying to connect to "focus-out-event" on a textview but I obtain an
> > assertion error and the program exit with an error status.
> > The assertion error looks like this:
> >
> > Assertion failed: (GTK_WIDGET_HAS_FOCUS (text_view)) on gtktextview.c in
> > line 4482
> >
> > I found an issue on GtkEntry that is really similiar:
> >
> > http://bugzilla.gnome.org/show_bug.cgi?id=78305
> >
> > I think the problem is that I should connect to focus-out-event with
> > g_signal_connect_after instead of g_signal_connect.
> > I'm using a code like this:
> >
> > (send-gtk "gtk_server_connect " textview " focus-out-event \"Trial\"")
> >
> > Where I'm wrong? I'm probably using gtk_server_connect in a wrong
> manner...
> > I'm working with Clisp 2.35, GtkServer 2.0 build 5, Gtk 2.6.7, Windows XP
> > Sp2.
> >
> > Thanks and excuse me for my bad english.
> >
> > Leonardo
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