factor/extra/images/viewer/viewer.factor

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Factor

! Copyright (C) 2007, 2009 Doug Coleman.
! See http://factorcode.org/license.txt for BSD license.
USING: accessors images images.loader io.pathnames kernel namespaces
opengl opengl.gl opengl.textures sequences strings ui ui.gadgets
ui.gadgets.panes ui.render ui.images ;
IN: images.viewer
TUPLE: image-gadget < gadget image texture ;
M: image-gadget pref-dim* image>> dim>> ;
: image-gadget-texture ( gadget -- texture )
dup texture>> [ ] [ dup image>> { 0 0 } <texture> >>texture texture>> ] ?if ;
M: image-gadget draw-gadget* ( gadget -- )
[ dim>> ] [ image-gadget-texture ] bi draw-scaled-texture ;
! Todo: delete texture on ungraft
GENERIC: <image-gadget> ( object -- gadget )
M: image <image-gadget>
\ image-gadget new
swap >>image ;
M: string <image-gadget> load-image <image-gadget> ;
M: pathname <image-gadget> string>> load-image <image-gadget> ;
: image-window ( object -- ) <image-gadget> "Image" open-window ;
: image. ( object -- ) <image-gadget> gadget. ;