factor/library/sdl/sdl-keyboard.factor

35 lines
1.0 KiB
Factor

! Copyright (C) 2004, 2005 Slava Pestov.
! See http://factor.sf.net/license.txt for BSD license.
IN: sdl
USING: alien lists namespaces kernel math hashtables
sequences ;
: SDL_EnableUNICODE ( enable -- )
"int" "sdl" "SDL_EnableUNICODE" [ "int" ] alien-invoke ;
: SDL_DEFAULT_REPEAT_DELAY 500 ;
: SDL_DEFAULT_REPEAT_INTERVAL 30 ;
: SDL_EnableKeyRepeat ( delay interval -- )
"int" "sdl" "SDL_EnableKeyRepeat" [ "int" "int" ] alien-invoke ;
: modifiers, ( mod -- )
modifiers get [
uncons pick bitand 0 = [ drop ] [ , ] ifte
] each
drop ;
: keysym, ( sym -- )
#! Return the original keysym number if its unknown.
[ keysyms get hash dup ] keep ? , ;
: keyboard-event>binding ( event -- binding )
#! Turn a key event into a binding, which is a list where
#! all elements but the last one are modifier names looked
#! up the modifiers alist, and the last element is a keysym
#! look up in the keysyms hash.
[
dup keyboard-event-mod modifiers,
keyboard-event-sym keysym,
] [ ] make prune ;