109 lines
2.9 KiB
Factor
109 lines
2.9 KiB
Factor
! Copyright (C) 2005, 2006 Slava Pestov.
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! See http://factorcode.org/license.txt for BSD license.
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IN: gadgets
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USING: alien arrays errors freetype gadgets-layouts
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gadgets-theme generic io kernel lists math memory namespaces
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opengl prettyprint sequences sequences strings styles threads ;
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DEFER: redraw-world
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! The world gadget is the top level gadget that all (visible)
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! gadgets are contained in. The current world is stored in the
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! world variable. The invalid slot is a list of gadgets that
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! need to be layout.
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TUPLE: world glass status invalid timers handle ;
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: timers ( -- hash ) world get world-timers ;
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: add-layer ( gadget -- )
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world get add-gadget ;
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C: world ( -- world )
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<stack> over set-delegate
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t over set-gadget-root?
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H{ } clone over set-world-timers ;
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: add-invalid ( gadget -- )
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world get [ world-invalid cons ] keep set-world-invalid ;
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: pop-invalid ( -- list )
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world get [ world-invalid f ] keep set-world-invalid ;
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: layout-world ( -- )
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world get world-invalid
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[ pop-invalid [ layout ] each layout-world ] when ;
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: hide-glass ( -- )
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f world get dup world-glass unparent set-world-glass ;
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: show-glass ( gadget -- )
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hide-glass
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<gadget> dup add-layer dup world get set-world-glass
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dupd add-gadget prefer ;
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! Status bar protocol
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GENERIC: set-message ( string/f status -- )
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M: f set-message 2drop ;
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: show-message ( string/f -- )
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#! Show a message in the status bar.
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world get world-status set-message ;
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: relevant-help ( -- string )
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hand get hand-gadget
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parents [ gadget-help ] map [ ] find nip ;
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: update-help ( -- )
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#! Update mouse-over help message.
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relevant-help show-message ;
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: under-hand ( -- seq )
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#! A sequence whose first element is the world and last is
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#! the current gadget, with all parents in between.
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hand get hand-gadget parents reverse-slice ;
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: hand-grab ( -- gadget )
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hand get rect-loc world get pick-up ;
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: update-hand-gadget ( -- )
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hand-grab hand get set-hand-gadget ;
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: move-hand ( loc -- )
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under-hand >r hand get set-rect-loc
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update-hand-gadget
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under-hand r> hand-gestures update-help ;
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: update-clicked ( -- )
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hand get
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dup hand-gadget over set-hand-clicked
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dup screen-loc over set-hand-click-loc
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dup hand-gadget over relative swap set-hand-click-rel ;
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: update-hand ( -- )
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#! Called when a gadget is removed or added.
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hand get rect-loc move-hand ;
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: ui-title
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[ "Factor " % version % " - " % image % ] "" make ;
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: world-step ( -- )
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do-timers
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world get world-invalid >r layout-world r>
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[ update-hand world get redraw-world ] when ;
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SYMBOL: first-time
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global [ first-time on ] bind
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: init-world ( -- )
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global [
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first-time get [
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<world> world set
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world get solid-interior
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{ 600 700 0 } world get set-gadget-dim
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<hand> hand set
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first-time off
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] when
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] bind ;
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