Re: [gtkmm] on_realize()!=signal_realize() ? , was: glade-2 + on_realize()

[Murray Cumming <murrayc usa net>]

Sorry, it's not an X event signal. I was thinking of expose_event.

It's hard to know what your problem is. Is it even a compiler problem or
a runtime problem? 

On Mon, 2003-09-29 at 17:01, Silviu D Minut wrote:
> I assume I'm doing something wrong (e.g. use the wrong return value), but
> that's because of the code generated by glade. Please take a look at the
> code below, I really need help with this.
> 
> Glade derives two classes from Gtk::Window:
>                                   |
>                              window1_glade   // can't edit this
>                                   |
>                                window1
> 
> In window1_glade I have a drawingarea and a pure virtual handler:
> 
> class window1_glade : public Gtk::Window
> {
> public:
>         class Gtk::DrawingArea *drawingarea1;
> protected:
>         window1_glade();
>         ~window1_glade();
> private:
>         virtual void on_drawingarea1_realize() = 0;
> };
> 
> and in window1 I have
> 
> class window1 : public window1_glade
> {
>         void on_drawingarea1_realize();
> };
> 
> In the window1_glade() constructor I have
> 
> window1_glade::window1_glade() : Gtk::Window(Gtk::WINDOW_TOPLEVEL)
> {
>    Gtk::Window *window1 = this;
>    drawingarea1 = Gtk::manage(new class Gtk::DrawingArea());
>    // more stuff
>    window1->add(*drawingarea1);
>    drawingarea1->show();
>    window1->show();
>    drawingarea1->signal_realize().connect(SigC::slot(*this,
> &window1_glade::on_drawingarea1_realize), true);
> }
> 
> > It's wrapped like every other signal. Because this is an X event signal
> > http://www.gtkmm.org/gtkmm2/docs/tutorial/html/apbs06.html
> > he's probably just using the wrong return value, or needs to use
> > connect_notify() instead.
> 
> If I understand this, the problem is with
> 
> void on_drawingarea1_realize();    // note the void return type
> 
> and/or
> 
>    drawingarea1->signal_realize().connect(SigC::slot(*this,
> &window1_glade::on_drawingarea1_realize), true);
> 
> These were created by glade. I'm not supposed to edit the files where
> these two instructions occur, because glade overrides them. Is glade
> generating the wrong code? Is there any way to make it do the right
> thing?
> 
> Also, I noticed that if I make on_drawingarea1_realize() a nonvirtual
> function in window1_glade and implement it, it works.
> 
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-- 
Murray Cumming
murrayc usa net
www.murrayc.com