Re: setting a button label overwrites label's color?

[Bob Caryl <bob fis-cal com>]

Tim Flechtner wrote:

> hello gtkmmers,
>  i have an object of Gtk::Button, in which i set the object's label's 
> color by calling code like:
>
> void setButton(Gtk::Button& button, std::string& s, Gdk::Color color)
> {
>  b.get_child()->modify_fg(Gtk::STATE_NORMAL, color);
>  b.set_label(s);
> }
>
> after this code executes, the button's label has reverted to the 
> default color for label text.  i believe that the call to set_label 
> resets its color.  if i invert the order of the two lines in the above 
> function, i get the color i therein.  i would *really* like to be able 
> to updated the contents of the label without the color (and possibly 
> other characteristics, such as font) resetting.  does anyone know how 
> i can do so?
>
> thanks!
> -tim
> _______________________________________________
> gtkmm-list mailing list
> gtkmm-list gnome org
> http://mail.gnome.org/mailman/listinfo/gtkmm-list

Hey Tim:

Try this instead:  (I'm assuming that you have not added any other 
children to the button outside of the text label by use of the button 
constuctor)

void setButton(Gtk::Button& button, Glib::ustring& str, Gdk::Color color)
{
   button.get_child()->modify_fg(Gtk::STATE_NORMAL, color);

   // get the pango layout for the label child of the button and use 
the "set_text" method to change the text.
   button.get_child()->get_layout()->set_text(str);
}

I didn't have time to test this, but it should allow you to change the 
button text without altering anything else. 

Sincerely,
Bob Caryl