Re: setting widget color

[muppet <scott asofyet org>]

On Tuesday, March 16, 2004, at 01:36 PM, Carl Nygard wrote:

> I need to set a label's color (fg, bg, either way) on the fly, do  
> different colors depending on state.
...
> Can someone point me to code that shows how to do this?  All the  
> archive examples seem to be specific to Gtk-perl, not Gtk2-perl.

With the standard disclaimers and admonishments that you shouldn't  
change styles and colors with a *really* good reason to do so, since  
that's the theme engine's domain and you can mess up your ui for  
colorblind people and depending on color is bad for blind people using  
screen readers and all that stuff...

/me catches breath


This is easier in gtk+-2.x.

http://developer.gnome.org/doc/API/2.0/gtk/GtkWidget.html#gtk-widget- 
modify-bg
http://gtk2-perl.sourceforge.net/doc/pod/Gtk2/ 
Widget.html#_widget_modify_bg_st

  e.g.
    $dlg = Gtk2::Dialog->new;
    $ebox = Gtk2::EventBox->new;
    $label = Gtk2::Label->new ('hi there');
    $ebox->add ($label);
    $dlg->vbox->add ($ebox);
    # turn the background bright red
    $ebox->modify_bg ('normal', Gtk2::Gdk::Color->new (65535, 0, 0));
    # turn the text bright green
    $label->modify_fg ('normal', Gtk2::Gdk::Color->new (0, 65535, 0));
    $dlg->show_all;
    Gtk2->main;

the 'normal' there was for the normal widget state.  there are five  
state types, which are probably not the ones to which you were  
referring:   
http://developer.gnome.org/doc/API/2.0/gtk/gtk-Standard- 
Enumerations.html#GtkStateType   to do that code right for a generic  
app, you'd have to set colors for more than just 'normal'.


but remember that you're not supposed to do this.

--
"it's hard to be eventful when you have this much style."
   - me, rationalizing yet another night of sitting at home.