Forbid PRELIGHT state

["Alexander Piskunov" <alexp inbox lv>]

 Sometimes it is required to forbid widget redraw when state is changed 
to prelight (Notif or Redmond95 themes). When mouse cursor
enters button or check button or some other widget,gtk_state_change 
signal is emitted and widget redraws it should remain 
unredrawed.
I mean PRELIGHT style shouldn't be applied to the widget.
Instead of solving this problem, ugly hack is used by programmers:
GtkStyle[PRELIGHT] is set the same as GtkStyle[NORMAL]
This hack is used in some GTK themes, GNOME Pager applet,GNOME main
menu (for menu headers) Redrawing widget using the same style causes 
flicker on my S3 TRIO 64V+

I think that something like a FORBID_PRELIGHT flag should be added to 
GtkWidget structure, and widget drawing routines should be modified to 
check this flag.

P.S. I can try to implement this change if GTK+ Team will support this 
idea
P.P.S Sorry if you already read this message in gtk-list. I think 
gtk-devel-list is better place for this.


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