factor/extra/ui/gadgets/books/books.factor

31 lines
827 B
Factor
Executable File

! Copyright (C) 2006, 2008 Slava Pestov.
! See http://factorcode.org/license.txt for BSD license.
USING: accessors kernel sequences models ui.gadgets math.geometry.rect ;
IN: ui.gadgets.books
TUPLE: book < gadget ;
: hide-all ( book -- ) gadget-children [ hide-gadget ] each ;
: current-page ( book -- gadget ) [ control-value ] keep nth-gadget ;
M: book model-changed ( model book -- )
nip
dup hide-all
dup current-page show-gadget
relayout ;
: new-book ( pages model class -- book )
new-gadget
swap >>model
swap add-gadgets ; inline
: <book> ( pages model -- book ) book new-book ;
M: book pref-dim* ( book -- dim ) children>> pref-dims max-dim ;
M: book layout* ( book -- )
[ dim>> ] [ children>> ] bi [ (>>dim) ] with each ;
M: book focusable-child* ( book -- child/t ) current-page ;