factor/library/ui/ui.factor

40 lines
1005 B
Factor

! Copyright (C) 2005 Slava Pestov.
! See http://factor.sf.net/license.txt for BSD license.
IN: gadgets
USING: errors freetype gadgets-layouts gadgets-listener
gadgets-theme generic help io kernel listener lists math memory
namespaces opengl prettyprint sdl sequences shells styles
threads words ;
SYMBOL: first-time
global [ first-time on ] bind
: init-world ( -- )
global [
first-time get [
<world> world set
world get solid-interior
@{ 800 600 0 }@ world get set-gadget-dim
<hand> hand set
listener-application
first-time off
] when
] bind ;
: check-running
world get [
world-running?
[ "The UI is already running" throw ] when
] when* ;
IN: shells
: ui ( -- )
#! Start the Factor graphics subsystem with the given screen
#! dimensions.
[
init-world check-running
world get rect-dim first2 0 gl-flags [ run-world ] with-screen
] with-freetype ;