factor/extra/images/viewer/viewer.factor

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Factor

! Copyright (C) 2007 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 ;
IN: images.viewer
TUPLE: image-gadget < gadget { image image } ;
M: image-gadget pref-dim*
image>> dim>> ;
: draw-image ( image -- )
0 0 glRasterPos2i 1.0 -1.0 glPixelZoom
[ dim>> first2 ] [ component-order>> component-order>format ] [ bitmap>> ] tri
glDrawPixels ;
M: image-gadget draw-gadget* ( gadget -- )
image>> draw-image ;
: <image-gadget> ( image -- gadget )
\ image-gadget new
swap >>image ;
: image-window ( path -- gadget )
[ load-image <image-gadget> dup ] [ open-window ] bi ;
GENERIC: image. ( object -- )
: default-image. ( path -- )
<image-gadget> gadget. ;
M: string image. ( image -- ) load-image default-image. ;
M: pathname image. ( image -- ) load-image default-image. ;
M: image image. ( image -- ) default-image. ;