1 ! Copyright (C) 2008 Doug Coleman.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: cairo.ffi kernel accessors sequences
4 namespaces fry continuations destructors ;
9 M: cairo-t dispose ( alien -- ) alien>> cairo_destroy ;
11 TUPLE: cairo-surface-t alien ;
12 C: <cairo-surface-t> cairo-surface-t
13 M: cairo-surface-t dispose ( alien -- ) alien>> cairo_surface_destroy ;
15 : check-cairo ( cairo_status_t -- )
16 dup CAIRO_STATUS_SUCCESS = [ drop ]
17 [ cairo_status_to_string "Cairo error: " prepend throw ] if ;
20 : cr ( -- cairo ) cairo get ;
22 : (with-cairo) ( cairo-t quot -- )
23 >r alien>> cairo r> [ cr cairo_status check-cairo ]
24 compose with-variable ; inline
26 : with-cairo ( cairo quot -- )
27 >r <cairo-t> r> [ (with-cairo) ] curry with-disposal ; inline
29 : (with-surface) ( cairo-surface-t quot -- )
30 >r alien>> r> [ cairo_surface_status check-cairo ] bi ; inline
32 : with-surface ( cairo_surface quot -- )
33 >r <cairo-surface-t> r> [ (with-surface) ] curry with-disposal ; inline
35 : with-cairo-from-surface ( cairo_surface quot -- )
36 '[ cairo_create _ with-cairo ] with-surface ; inline