Re: [gtkmm] Drop down menu from a tollbar item?

[<kickvb touva be>]

> As nasty as it is, I suppose I could pull all that off *IF* I only new
> where to place the popup menu.  I'm not sure how to get the lower left
> coordinates of the toggle button. I don't want the menu popping up at
> the mouse pointer. I tried reading the gedit source, but couldn't find
> the code that builds the toolbar.<br>

I dont't know any way to inherit drop-down behavior from Gtk::Menu, although
I'm interested in it.

But I know how to position a window up to a button. This piece of code move a
 Gtk::Window (ffchoice) up to a button (font_b). If there is not enough place
up to the button, it is placed down to it.

    Glib::RefPtr<Gdk::Window> choicewin = ffchoice->get_window();
    int cw, ch;
    choicewin->get_size(cw, ch);

    Glib::RefPtr<Gdk::Window> mywin = font_b->get_window();
    int wx, wy;
    mywin->get_origin(wx, wy);

    GtkAllocation alloc = font_b->get_allocation();
    int myx, myy, myw, myh;
    myx = alloc.x + wx;
    myy = alloc.y + wy;
    myw = alloc.width;
    myh = alloc.height;

    int x = myx + myw - cw;
    int y = myy - ch;
    if (y < 0) y = myy + myh;
    choicewin->move(x, y);
    ffchoice->show_now();

Hope this helps

Christian Van Brusssel