factor/basis/ui/images/images.factor

53 lines
1.3 KiB
Factor

! Copyright (C) 2009 Slava Pestov.
! See http://factorcode.org/license.txt for BSD license.
USING: accessors assocs cache combinators images.loader kernel
math memoize namespaces opengl opengl.textures sequences
splitting system ui.gadgets.worlds vocabs ;
IN: ui.images
TUPLE: image-name path ;
C: <image-name> image-name
<PRIVATE
MEMO: cached-image-path ( path -- image )
[ load-image ] [ "@2x" swap subseq? >>2x? ] bi ;
PRIVATE>
: cached-image ( image-name -- image )
path>> gl-scale-factor get-global [ 1.0 > ] [ f ] if* [
"." split1-last "@2x." glue
] when cached-image-path ;
<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>> ] [ 2x?>> [ [ 2 / ] map ] when ] bi ;
{
{ [ os macosx? ] [ "images.loader.cocoa" require ] }
{ [ os windows? ] [ "images.loader.gdiplus" require ] }
{ [ os { freebsd } member? ] [
"images.png" require
"images.tiff" require
] }
[ "images.loader.gtk" require ]
} cond