383 lines
18 KiB
Racket
383 lines
18 KiB
Racket
#lang syndicate/actor
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(require racket/set)
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(require (prefix-in i: 2htdp/image))
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(require (prefix-in p: pict))
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(require syndicate-gl/2d)
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(require "layout/main.rkt")
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(require "hsv.rkt")
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;;---------------------------------------------------------------------------
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(define theme-font (make-parameter "Roboto"))
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(define theme-font-size (make-parameter 16))
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(define theme-title-font (make-parameter "Roboto Condensed"))
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(define theme-title-font-size (make-parameter 20))
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(define theme-title-font-color (make-parameter "white"))
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(define theme-title-bar-color (make-parameter (hsv->color 260 1 1)))
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(define theme-title-bar-height (make-parameter 48))
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(define theme-button-background-color (make-parameter (hsv->color 30 0.9 1)))
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(define theme-button-color (make-parameter "white"))
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(define theme-button-x-padding (make-parameter 40))
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(define theme-button-y-padding (make-parameter 24))
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(define theme-button-min-height (make-parameter 48))
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(define theme-window-border-width (make-parameter 8))
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(define theme-window-resize-corner-size (make-parameter 16))
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(define theme-menu-item-color (make-parameter "white"))
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(define theme-menu-item-background-color (make-parameter (hsv->color 240 1 0.8)))
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(define theme-menu-item-selected-background-color (make-parameter (hsv->color 345 1 1)))
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(define theme-menu-item-padding (make-parameter 16))
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(define theme-menu-separator-width (make-parameter 2))
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(define theme-menu-separator-color (make-parameter "white"))
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;;---------------------------------------------------------------------------
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(define (*width x)
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(cond [(i:image? x) (i:image-width x)]
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[(p:pict? x) (p:pict-width x)]
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[else (error '*width "Neither an image nor a pict: ~v" x)]))
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(define (*height x)
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(cond [(i:image? x) (i:image-height x)]
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[(p:pict? x) (p:pict-height x)]
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[else (error '*height "Neither an image nor a pict: ~v" x)]))
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(define (costume #:id [id #f] #:parent [parent-id #f] i)
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(define iw (*width i))
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(define ih (*height i))
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(define iaspect (/ iw ih))
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(lambda (z rect)
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(match-define (rectangle left top sw sh) rect)
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(define saspect (if (and (positive? sw) (positive? sh)) (/ sw sh) 1))
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(define-values (scale-w scale-h translate-x translate-y)
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(if (> saspect iaspect)
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(let ((scale-h (/ sw iaspect)))
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(values sw scale-h 0 (/ (- sh scale-h) 2)))
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(let ((scale-w (* sh iaspect)))
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(values scale-w sh (/ (- sw scale-w) 2) 0))))
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(sprite #:id (or id (gensym 'costume))
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#:parent parent-id
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z
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`((translate ,left ,top)
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(push-matrix (scale ,sw ,sh)
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,@(if id
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`((touchable ,id ,in-unit-square?))
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`())
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(texture ,i
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,(- (/ translate-x scale-w))
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,(- (/ translate-y scale-h))
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,(/ sw scale-w)
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,(/ sh scale-h)
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))
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(render-children)))))
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(define (draggable-mixin touching? x y z)
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(define (idle)
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(react (stop-when #:when (touching?)
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(message (inbound (mouse-event 'left-down (mouse-state $mx $my _ _ _))))
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(dragging (- mx (x)) (- my (y))))))
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(define (dragging dx dy)
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(z (- (current-inexact-milliseconds)))
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(react (on (message (inbound (mouse-event 'motion (mouse-state $mx $my _ _ _))))
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(x (- mx dx))
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(y (- my dy)))
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(stop-when (message (inbound (mouse-event 'left-up _))) (idle))
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(stop-when (message (inbound (mouse-event 'leave _))) (idle))))
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(idle))
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(actor #:name 'root-window
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(define c (costume #:id 'root (i:bitmap "oakura-beach-20081225.jpg")))
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(define/query-value touching? #f (inbound (touching 'root)) #t)
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(on #:when (touching?) (message (inbound (mouse-event 'right-down (mouse-state $x $y _ _ _))))
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(send! (pop-up-menu-trigger 'system-menu x y 0 0.5 'right-up)))
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(during (inbound (window $width $height))
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(assert (outbound (c 0 (rectangle 0 0 width height))))))
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(define (button-underlay i)
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(define w (+ (*width i) (theme-button-x-padding)))
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(define h (max (+ (*height i) (theme-button-y-padding)) (theme-button-min-height)))
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(i:rectangle w h "solid" (theme-button-background-color)))
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;;---------------------------------------------------------------------------
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(struct pop-up-menu-trigger (menu-id x y x-pin y-pin release-event) #:transparent)
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(struct menu-separator (menu-id order) #:transparent)
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(struct menu-item (menu-id order image message) #:transparent)
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(actor #:name 'pop-up-menu-driver
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(on (message (pop-up-menu-trigger $menu-id $x $y $x-pin $y-pin $release-event))
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(run-pop-up-menu menu-id x y x-pin y-pin release-event)))
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(define (menu-item-order-key i)
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(cond [(menu-item? i) (menu-item-order i)]
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[(menu-separator? i) (menu-separator-order i)]))
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(define (run-pop-up-menu menu-id pop-up-cursor-x pop-up-cursor-y x-pin y-pin release-event)
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(define instance-id (list menu-id (gensym 'instance)))
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(define pad (theme-menu-item-padding))
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(define pad2 (* pad 2))
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(define highlight (i:rectangle 1 1 "solid" (theme-menu-item-selected-background-color)))
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(define separator (i:rectangle 1 1 "solid" (theme-menu-separator-color)))
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(actor #:name instance-id
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(define/query-set items ($ i (menu-item menu-id _ _ _)) i)
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(define/query-set separators ($ s (menu-separator menu-id _)) s)
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(define/dataflow ordered-items (sort (append (set->list (items))
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(set->list (separators)))
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< #:key menu-item-order-key)
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#:default '())
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(define/dataflow menu-table (for/list [(i (ordered-items))]
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(match i
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[(menu-item _ _ (seal im) _)
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(list (box-size (sizing (+ pad2 (*width im)) 0 0)
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(sizing (+ pad2 (*height im)) 0 0)))]
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[(menu-separator _ _)
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(list (box-size (sizing 0 weak-fill 0)
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(sizing (theme-menu-separator-width) 0 0)))])))
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(define/dataflow total-size (table-sizing (menu-table))
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#:default zero-box-size)
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(define (menu-width) (sizing-ideal (box-size-horizontal (total-size))))
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(define (menu-height) (sizing-ideal (box-size-vertical (total-size))))
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(define/dataflow layout (table-layout (menu-table) 0 0 (menu-width) (menu-height))
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#:default '())
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(define (render-menu)
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(define offset-x (- pop-up-cursor-x (* x-pin (+ (menu-width) 2)) -1))
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(define offset-y (- pop-up-cursor-y (* y-pin (+ (menu-height) 2)) -1))
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(sprite #:id instance-id
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-1
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`((translate ,offset-x ,offset-y)
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(push-matrix (scale ,(menu-width) ,(menu-height))
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(texture ,(i:rectangle 1 1 "solid" (theme-menu-item-background-color))))
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,@(for/list [(item (ordered-items)) (row (layout))]
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(match-define (rectangle left top width height) (car row))
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(match item
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[(menu-item _ _ (seal im) _)
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`(begin
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(push-matrix (translate ,left ,top)
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(scale ,width ,height)
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(touchable (,instance-id ,(seal item)) ,in-unit-square?)
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,@(if (eq? (selected-item) item)
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`((texture ,highlight))
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`()))
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(push-matrix (translate ,(+ left pad) ,(+ top pad))
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(scale ,(*width im) ,(*height im))
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(texture ,im)))]
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[(menu-separator _ _)
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`(push-matrix (translate ,left ,top)
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(scale ,width ,height)
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(texture ,separator))]))
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(render-children))))
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(define/query-value selected-item* #f (inbound (touching `(,instance-id ,$sealed-item)))
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(seal-contents sealed-item))
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(field [selected-item #f])
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(begin/dataflow (when (not (eq? (selected-item) (selected-item*)))
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(selected-item (selected-item*))))
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(assert (outbound (render-menu)))
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(stop-when (message (inbound (mouse-event release-event _)))
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(when (selected-item)
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(send! (menu-item-message (selected-item)))))
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(on (asserted ($ s (mouse-state _ _ _ _ _)))
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(log-info "MENU ~v: ~v" menu-id s))))
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;;---------------------------------------------------------------------------
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(define (system-text str [color #f])
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(i:text/font str (theme-font-size) (or color "white")
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(theme-font) 'default 'normal 'normal #f))
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(define (title-font-text str)
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(i:text/font str (theme-title-font-size) (theme-title-font-color)
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(theme-title-font) 'default 'normal 'normal #f))
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(define (menu-item/text menu-id order str message)
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(menu-item menu-id order (seal (system-text str (theme-menu-item-color))) message))
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;;---------------------------------------------------------------------------
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(struct window-state (window-id state) #:transparent)
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(struct raise-widget (id) #:transparent)
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(define close-icon-i
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(parameterize ((theme-font-size (round (* 4/3 (theme-title-font-size)))))
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(system-text "×" (theme-title-font-color))))
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(define (window-frame id title backdrop-color
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#:close-icon? [close-icon? #t]
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#:parent [parent-id 'root])
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(define title-text-i (title-font-text title))
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(define title-text-w (i:image-width title-text-i))
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(define title-text-h (i:image-height title-text-i))
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(define title-bar-i (i:rectangle 1 1 "solid" (theme-title-bar-color)))
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(define close-icon-w (i:image-width close-icon-i))
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(define close-icon-h (i:image-height close-icon-i))
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(define gap (/ (- (theme-title-bar-height) close-icon-w) 2))
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(define backdrop (i:rectangle 1 1 "solid" backdrop-color))
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(lambda (z rect)
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(match-define (rectangle left top width height) rect)
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(sprite #:id id
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#:parent parent-id
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z
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`((translate ,left ,top)
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(push-matrix (translate ,(- (theme-window-border-width))
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,(- (theme-title-bar-height)))
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(scale ,(+ width (* 2 (theme-window-border-width)))
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,(+ height (theme-title-bar-height) (theme-window-border-width)))
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(touchable (,id window-backdrop) ,in-unit-square?)
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(texture ,title-bar-i))
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(push-matrix (translate 0 ,(- (theme-title-bar-height)))
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(scale ,width ,(theme-title-bar-height))
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(touchable (,id title-bar) ,in-unit-square?))
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(push-matrix (translate ,(- (+ width (theme-window-border-width))
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(theme-window-resize-corner-size))
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,(- (+ height (theme-window-border-width))
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(theme-window-resize-corner-size)))
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(scale ,(theme-window-resize-corner-size)
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,(theme-window-resize-corner-size))
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(touchable (,id resize-corner) ,in-unit-square?))
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,@(if close-icon?
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`((push-matrix
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(translate ,gap ,(- (/ (+ (theme-title-bar-height) close-icon-h) 2)))
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(scale ,close-icon-w ,close-icon-h)
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(touchable (,id close-icon) ,in-unit-square?)
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(texture ,close-icon-i)))
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`())
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(push-matrix (translate ,(/ (- width title-text-w) 2)
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,(- (/ (+ (theme-title-bar-height) title-text-h) 2)))
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(scale ,title-text-w ,title-text-h)
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(texture ,title-text-i))
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(push-matrix (scale ,width ,height)
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(texture ,backdrop))
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(render-children)))))
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(define (open-window window-id window-title x y width height [backdrop-color (hsv->color 200 1 1)]
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#:resizable? [resizable? #t])
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(define c (window-frame window-id window-title backdrop-color))
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(field [z (- (current-inexact-milliseconds))])
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(define/query-value touching-title-bar?
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#f (inbound (touching `(,window-id title-bar))) #t)
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(on-start (draggable-mixin touching-title-bar? x y z))
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(when resizable?
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(define/query-value touching-resize-corner?
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#f (inbound (touching `(,window-id resize-corner))) #t)
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(on-start (draggable-mixin touching-resize-corner? width height z)))
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(define/query-value touching-close-icon?
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#f (inbound (touching `(,window-id close-icon))) #t)
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(stop-when #:when (touching-close-icon?) (message (inbound (mouse-event 'left-up _))))
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(on (message (raise-widget window-id))
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(z (- (current-inexact-milliseconds))))
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(define/dataflow bounds (rectangle (x) (y) (width) (height)) #:default zero-rectangle)
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(assert (window-state window-id (bounds)))
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(assert (outbound (c (z) (bounds)))))
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;;---------------------------------------------------------------------------
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(struct button-click (id mouse-state) #:transparent)
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(begin-for-declarations
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;; TODO: figure out what it is about (define (f #:x x) x) that
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;; mandates begin-for-declarations to hide it from syndicate/lang's
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;; local-expansion here :-(
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(define (pushbutton label-str x y
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#:id id
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#:parent parent-id
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#:trigger-event [trigger-event 'left-up])
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(define label (system-text label-str (theme-button-color)))
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(define i (i:overlay/align "middle" "middle" label (button-underlay label)))
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(define c (costume #:id id #:parent parent-id i))
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(define/query-value touching? #f (inbound (touching id)) #t)
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(on #:when (touching?) (message (inbound (mouse-event trigger-event $s)))
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(send! (button-click id s)))
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(assert (outbound (c 0 (rectangle x y (*width i) (*height i)))))))
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;;---------------------------------------------------------------------------
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(define (enforce-minimum f v)
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(begin/dataflow (when (< (f) v) (f v))))
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(begin-for-declarations
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(define (message-box title init-x init-y body #:id id)
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(define msg (system-text body))
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(actor #:name (list 'message-box id)
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(field [x init-x]
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[y init-y]
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[width (max 250 (*width msg))]
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[height (max 100 (*height msg))])
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(open-window id title x y width height #:resizable? #f)
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(assert (outbound ((costume #:parent id msg)
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0
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(rectangle (/ (- (width) (*width msg)) 2)
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(/ (- (height) (*height msg)) 2)
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(*width msg)
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(*height msg))))))))
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(actor #:name 'test-window
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(field [x 140] [y 140] [width 400] [height 300])
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(open-window 'w "Window Title" x y width height)
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(enforce-minimum width 300)
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(enforce-minimum height 300)
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(assert (menu-item/text 'testmenu 0 "First item" '(testmenu first)))
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(assert (menu-item/text 'testmenu 1 "Second item" '(testmenu second)))
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(assert (menu-item/text 'testmenu 2 "Third item" '(testmenu third)))
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(during (inbound (window $width $height))
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(on (message `(testmenu ,$which))
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(define box-id (gensym 'box))
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(message-box #:id box-id
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"Menu item selected" (random width) (random height)
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(format "~a" which))))
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(pushbutton "Click me" 100 100 #:id 'click-me #:parent 'w #:trigger-event 'left-down)
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(on (message (button-click 'click-me (mouse-state $x $y _ _ _)))
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(send! (pop-up-menu-trigger 'testmenu x y 0 0.5 'left-up))))
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;;---------------------------------------------------------------------------
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(actor #:name 'fullscreen-menu-item
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(field [fullscreen? #t])
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(assert (menu-item/text 'system-menu -1
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(if (fullscreen?)
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"Fullscreen ✓"
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"Fullscreen")
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'(system-menu toggle-fullscreen)))
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(assert (menu-separator 'system-menu -0.9))
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(on (message '(system-menu toggle-fullscreen))
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(fullscreen? (not (fullscreen?))))
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(assert #:when (fullscreen?) (outbound 'fullscreen)))
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(actor #:name 'quit-menu-item
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(assert (menu-item/text 'system-menu 0 "Quit" '(system-menu quit)))
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(stop-when (message '(system-menu quit))
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(actor (assert (outbound 'stop))))
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(stop-when (message (inbound (key-event #\q #t _)))
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(actor (assert (outbound 'stop)))))
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;; (actor #:name 'toolbar
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;; (field [window-width 0] [window-height 0])
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;; (on (asserted (inbound (window $w $h)))
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;; (window-width w)
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;; (window-height h))
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;; (assert (outbound ((costume #:id 'toolbar #:parent #f
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;; (i:rectangle 1 1 "solid" "black"))
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;; -0.5
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;; (rectangle 0
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;; (- (window-height) (theme-title-bar-height))
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;; (window-width)
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;; (theme-title-bar-height))))))
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(module+ main
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(current-ground-dataspace (2d-dataspace)))
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