factor/library/sdl/sdl-keyboard.factor

30 lines
1012 B
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 ;
: modifier ( mod -- str )
[ modifiers [ uncons rot bitand 0 > ?, ] each-with ] [ ] make ;
: keysym ( sym -- str )
#! Return the original keysym number if its unknown.
[ keysyms 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 modifier
swap keyboard-event-sym keysym add ;