Re: setting background color to drawing area
- From: John Cupitt <john cupitt ng-london org uk>
- Cc: Gtk users <gtk-list gnome org>
- Subject: Re: setting background color to drawing area
- Date: Thu, 07 Dec 2000 11:09:17 +0000
Paul Barton-Davis wrote:
> then to change colors:
>
> gtk_widget_set_state (area_widget, GTK_STATE_SELECTED);
Ooo, neat, never thought of that.
> this only works if you have a limited number of colors, of course. if
> you really want to change to one of more than about 4 colors, you'll
> have to use mark's suggested method
Tiny point: you can do it with gtkrc files with more than 4 colours by
changing the name, rather than the state. Eg.:
style "colour1_style" {
bg[NORMAL]={1.0,0.0,0.0}
}
widget "*colour1_widget" style "colour1_style"
style "colour2_style" {
bg[NORMAL]={0.0,1.0,0.0}
}
widget "*colour2_widget" style "colour2_style"
etc.
then:
gtk_widget_set_name( my_widget, "colour1_widget" );
gtk_widget_set_name( my_widget, "colour2_widget" );
etc.
I guess this'll be a little slower than setting the state (though I've
not timed it), but it's fast enough for most things.
John
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