Re: Re: Re: Button can't be clicked.

[zun03127 nifty com]

Hi, All,

Sorry for late response.
I'm ready to give you a C code as I mentioned.
Below is a sample code.
As you know, please compile as follows.
$ gcc -Wall -o helloworld `pkg-config --cflags --libs gtk+-2.0` helloworld.c

I'm enough at present since I found this is well-known bug 
and has been registered at bugzilla.
However, what I want to know next is how I find a workaround
about it.

Any hint from you would be highly appreciated!


===== Cut here and Paste as helloworld.c =====
#include <gtk/gtk.h>

GtkWidget* button;
gint timertag = -1;

static gboolean timer_expired(gpointer val)
{
    gtk_timeout_remove(timertag);
    timertag=-1;

    gtk_widget_set_sensitive (button, TRUE);

    g_print("timer timeout.\n\n");

    return FALSE;
}

static void hello( GtkWidget *widget,
                   gpointer   data )
{
    g_print("Enter callback\n");
    gtk_widget_set_sensitive (button, FALSE);

//    g_print ("Hello World\n");

    timertag = g_timeout_add(3000/*msec*/, timer_expired, NULL);
    g_print("Exit callback\n");
}

static gboolean delete_event( GtkWidget *widget,
                              GdkEvent  *event,
                              gpointer   data )
{
    /* If you return FALSE in the "delete_event" signal handler,
     * GTK will emit the "destroy" signal. Returning TRUE means
     * you don't want the window to be destroyed.
     * This is useful for popping up 'are you sure you want to quit?'
     * type dialogs. */

    g_print ("delete event occurred\n");

    /* Change TRUE to FALSE and the main window will be destroyed with
     * a "delete_event". */

//    return TRUE;
    return FALSE;
}

/* Another callback */
static void destroy( GtkWidget *widget,
                     gpointer   data )
{
    gtk_main_quit ();
}

int main( int   argc,
          char *argv[] )
{
    /* GtkWidget is the storage type for widgets */
    GtkWidget *window;
//    GtkWidget *button;

    /* This is called in all GTK applications. Arguments are parsed
     * from the command line and are returned to the application. */
    gtk_init (&argc, &argv);

    /* create a new window */
    window = gtk_window_new (GTK_WINDOW_TOPLEVEL);

    /* add a reference tag */
    gtk_object_set_data (GTK_OBJECT (window), "window", window);

    /* When the window is given the "delete_event" signal (this is given
     * by the window manager, usually by the "close" option, or on the
     * titlebar), we ask it to call the delete_event () function
     * as defined above. The data passed to the callback
     * function is NULL and is ignored in the callback function. */
    g_signal_connect (G_OBJECT (window), "delete_event",
                      G_CALLBACK (delete_event), NULL);

    /* Here we connect the "destroy" event to a signal handler.
     * This event occurs when we call gtk_widget_destroy() on the window,
     * or if we return FALSE in the "delete_event" callback. */
    g_signal_connect (G_OBJECT (window), "destroy",
                      G_CALLBACK (destroy), NULL);

    /* Sets the border width of the window. */
    gtk_container_set_border_width (GTK_CONTAINER (window), 10);

    /* Creates a new button with the label "Hello World". */
    button = gtk_button_new_with_label ("Hello World");

    /* add a reference tag */
    gtk_object_set_data (GTK_OBJECT (button), "button", button);

    /* When the button receives the "clicked" signal, it will call the
     * function hello() passing it NULL as its argument.  The hello()
     * function is defined above. */
    g_signal_connect (G_OBJECT (button), "clicked",
                      G_CALLBACK (hello), NULL);

//    /* This will cause the window to be destroyed by calling
//     * gtk_widget_destroy(window) when "clicked".  Again, the destroy
//     * signal could come from here, or the window manager. */
//    g_signal_connect_swapped (G_OBJECT (button), "clicked",
//                              G_CALLBACK (gtk_widget_destroy),
//                              G_OBJECT (window));

    /* This packs the button into the window (a gtk container). */
    gtk_container_add (GTK_CONTAINER (window), button);

    /* The final step is to display this newly created widget. */
    gtk_widget_show (button);

    /* and the window */
    gtk_widget_show (window);

    /* All GTK applications must have a gtk_main(). Control ends here
     * and waits for an event to occur (like a key press or
     * mouse event). */
    gtk_main ();

    return 0;
}

===== Cut to here =====

Best Regards,



----- Original Message -----
> Date: Wed, 21 Dec 2005 13:09:52 -0600 (CST)
> From: Matt Hull <mhull1 uic edu>
> To: Matthias Clasen <mclasen redhat com>
> cc: zun03127 nifty com, gtk-app-devel-list gnome org
> Subject: Re: Re: Button can't be clicked.
>
>
> i noticed that on xfce4 when i log off and it ask are you sure.  sometimes
> the ok buttons wouldnt work.  hmmmm  no i know why
>
> matt
>
> On Wed, 21 Dec 2005, Matthias Clasen wrote:
>
> > On Thu, 2005-12-22 at 02:41 +0900, zun03127 nifty com wrote:
> > > Thank you for your response.
> > >
> > > Yes, I can reproduce easily.
> > > I will prepare to post short C code(probably about 100 steps or so).
> > > I will be back after preparing it.
> > >
> > > Thank you very much for your help.
> > >
> > > Best Regards,
> > > an probably track it quickly :)
> > > >
> >
> > Well-known bug, not easy to fix:
> >
> > http://bugzilla.gnome.org/show_bug.cgi?id=56070
> >
> > Matthias
> >
> > _______________________________________________
> > gtk-app-devel-list mailing list
> > gtk-app-devel-list gnome org
> > http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list