Re: emit keypress event into event loop

2007-09-24 Thread vano 
David Nečas (Yeti) wrote:
 On Fri, Sep 21, 2007 at 03:32:49PM -0100, vano wrote:
 Anybody has idea how to emit in GTK (2.11.6) some keypress event into
 main event loop?


 Why on Earth you are connecting to button-press-event
 instead of clicked of the button?  (And with a handler that
 has the wrong prototype -- event signals have a boolean return
 value.)
 
 Now something constructive: Synthetizing events is almost
 always a bad idea.  At the end, you want the button to
 behave normally (i.e. connect to clicked) and perform some
 specific action: insert text, delete text, change text, ...
 For all these things GtkTextView/Buffer have methods.  Use
 them directly.
 

Hi David,

thanks for your feedback. The main reason of connecting signal to
button-press/release-event is that I need them passed through GTK
immodule, namely so they get catched and handled by
immodules/im-multipress.so
I can't just set/update/deleta text directly by textview methods.

Best regards,
Ivan

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emit keypress event into event loop

2007-09-21 Thread vano 

Hello,

Anybody has idea how to emit in GTK (2.11.6) some keypress event into
main event loop?

I have mouse clickable button and want to send to my text_view a
keyboard press.

I'm doing this way:

in main code:

g_signal_connect(G_OBJECT(my_button), button-press-event,
 G_CALLBACK(press_callback), G_OBJECT(textview));

in callback:

static void press_callback( GtkWidget *widget,
GdkEventButton *e, GtkWidget *text_view )
{
g_print(button press\n);

GdkEvent *event;

event = gdk_event_new(GDK_KEY_PRESS);

event-key.keyval = GDK_K;
event-key.window = gtk_text_view_get_window(text_view,
GTK_TEXT_WINDOW_TEXT);
event-key.time = 0;

gtk_main_do_event(event);
}

I get nothing in my text_view view but have the following debug output:
GLib-GObject-WARNING **: invalid uninstantiatable type `invalid' in
cast to `GdkWindow'
gtktextview.c:4303: focus_out_event
Lines Validated (gtktextview.c:3492)
 visible rect: 0,0 226 x 107
 invalidated rect: 0,0 226 x 28
Exposed (gtktextview.c:4447)

or if trying another approach with sending event directly to text_view
widget:

static void press_callback( GtkWidget *widget,
GdkEventButton *e, GtkWidget *text_view )
{
g_print(button press\n);

GdkEvent *event;

event = gdk_event_new(GDK_KEY_PRESS);

event-key.keyval = GDK_K;
event-key.window = gtk_text_view_get_window(text_view,
GTK_TEXT_WINDOW_TEXT);
event-key.time = 0;

g_signal_emit_by_name(GTK_TEXT_VIEW(text_view), key_press_event, 
event);

}

the program seems go in correct way, but I get segmentation fault:

Invalidate, onscreen_validated = 1 now FALSE (gtktextview.c:3442)
gtktextview.c:3454: adding first validate idle 13
gtktextview.c:3461: adding incremental validate idle 14
gtktextview.c:1812
Invalidating due to layout invalidate signal
Invalidate, onscreen_validated = 0 now FALSE (gtktextview.c:3442)
Invalidating due to layout invalidate signal
Invalidate, onscreen_validated = 0 now FALSE (gtktextview.c:3442)
TEXTVIEW: K -- callback of changed signal for TextView
gtktextview.c:7131: scrolling onscreen
gtktextview.c:1812
gtktextview.c:3410
removing first validate in gtktextview.c:3367
Updating layout width (gtktextview.c:1965)
Segmentation fault

Please suggest correct mailing list if I'm posting on the wrong one.

Thanks!

Best regards,
Ivan






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