33 lines
906 B
Factor
33 lines
906 B
Factor
! Copyright (C) 2007 Slava Pestov.
|
|
! See http://factorcode.org/license.txt for BSD license.
|
|
USING: ui.backend ui.gadgets ui.gadgets.theme ui.gadgets.lib
|
|
ui.gadgets.worlds ui.render opengl opengl.gl kernel namespaces
|
|
classes.tuple colors ;
|
|
IN: ui.gadgets.canvas
|
|
|
|
TUPLE: canvas < gadget dlist ;
|
|
|
|
: <canvas> ( -- canvas )
|
|
canvas new-gadget
|
|
black solid-interior ;
|
|
|
|
: delete-canvas-dlist ( canvas -- )
|
|
dup find-gl-context
|
|
dup canvas-dlist [ delete-dlist ] when*
|
|
f swap set-canvas-dlist ;
|
|
|
|
: make-canvas-dlist ( canvas quot -- dlist )
|
|
over >r GL_COMPILE swap make-dlist dup r>
|
|
set-canvas-dlist ;
|
|
|
|
: cache-canvas-dlist ( canvas quot -- dlist )
|
|
over canvas-dlist dup
|
|
[ 2nip ] [ drop make-canvas-dlist ] if ; inline
|
|
|
|
: draw-canvas ( canvas quot -- )
|
|
origin get [
|
|
cache-canvas-dlist glCallList
|
|
] with-translation ; inline
|
|
|
|
M: canvas ungraft* delete-canvas-dlist ;
|