factor/basis/ui/images/images.factor

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984 B
Factor

! Copyright (C) 2009 Slava Pestov.
! See http://factorcode.org/license.txt for BSD license.
USING: accessors assocs cache combinators images.loader kernel
memoize namespaces opengl.textures system ui.gadgets.worlds
vocabs ;
IN: ui.images
TUPLE: image-name path ;
C: <image-name> image-name
MEMO: cached-image ( image-name -- image ) path>> load-image ;
<PRIVATE
: image-texture-cache ( world -- texture-cache )
[ [ <cache-assoc> ] unless* ] change-images images>> ;
PRIVATE>
: rendered-image ( image-name -- texture )
world get image-texture-cache
[ cached-image { 0 0 } <texture> ] cache ;
: draw-image ( image-name -- )
rendered-image draw-texture ;
: draw-scaled-image ( dim image-name -- )
rendered-image draw-scaled-texture ;
: image-dim ( image-name -- dim )
cached-image dim>> ;
{
{ [ os macosx? ] [ "images.loader.cocoa" require ] }
{ [ os windows? ] [ "images.loader.gdiplus" require ] }
[ "images.loader.gtk" require ]
} cond