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(define-module (catbird scene)
#:use-module (catbird config)
#:use-module (catbird mixins)
#:use-module (catbird mode)
#:use-module (catbird node)
#:use-module (chickadee data array-list)
#:use-module (ice-9 exceptions)
#:use-module (ice-9 format)
#:use-module (oop goops)
#:use-module (srfi srfi-1)
#:export (<scene>
regions
major-mode
minor-modes
replace-major-mode
push-major-mode
pop-major-mode
add-minor-mode
remove-minor-mode))
(define-root-class <scene> (<node>)
(regions #:accessor regions #:init-value '())
(major-mode #:accessor major-mode #:init-keyword #:major-mode
#:init-form (make <nothing-mode>))
(major-mode-stack #:getter major-mode-stack #:init-thunk make-array-list)
(minor-modes #:accessor minor-modes #:init-value '())
(input-map #:getter input-map #:init-value '()))
(define-method (initialize (scene <scene>) args)
(next-method)
(attach (major-mode scene) scene))
(define-method (replace-major-mode (scene <scene>) (mode <major-mode>))
(let ((old-mode (major-mode scene)))
(when old-mode
(detach old-mode))
(set! (major-mode scene) mode)
(attach mode scene)))
(define-method (push-major-mode (scene <scene>) (mode <major-mode>))
(let ((old-mode (major-mode scene)))
(array-list-push! (major-mode-stack scene) old-mode)
(when old-mode
(pause old-mode))
(set! (major-mode scene) mode)
(attach mode scene)))
(define-method (pop-major-mode (scene <scene>))
(let ((stack (major-mode-stack scene)))
(unless (array-list-empty? stack)
(let ((mode (major-mode scene))
(prev-mode (array-list-pop! stack)))
(when mode
(detach mode))
(set! (major-mode scene) prev-mode)
(resume prev-mode)))))
(define-method (add-minor-mode (scene <scene>) (mode <minor-mode>))
(when (parent mode)
(raise-exception
(make-exception-with-message "mode already attached to a scene")))
(set! (minor-modes scene) (cons mode (minor-modes scene)))
(attach mode scene))
(define-method (remove-minor-mode (scene <scene>) (mode <minor-mode>))
(unless (eq? scene (parent mode))
(raise-exception
(make-exception-with-message "mode not attached to scene")))
(let ((modes (minor-modes scene)))
(set! (minor-modes scene) (delq mode modes))
(detach mode)))
(define-method (remove-minor-mode (scene <scene>) (mode-class <class>))
(let ((mode (find (lambda (mode)
(eq? (class-of mode) mode-class))
(minor-modes scene))))
(when mode
(remove-minor-mode scene mode))))
(define-method (search-modes (scene <scene>) proc)
(or (proc (major-mode scene))
(find (lambda (mode)
(proc mode))
(minor-modes scene))))
(define-method (on-key-press (scene <scene>) key modifiers)
(search-modes scene
(lambda (mode)
(on-key-press mode key modifiers))))
(define-method (on-key-release (scene <scene>) key modifiers)
(search-modes scene
(lambda (mode)
(on-key-release mode key modifiers))))
(define-method (on-text-input (scene <scene>) text)
(search-modes scene
(lambda (mode)
(on-text-input mode text))))
(define-method (on-mouse-press (scene <scene>) button x y)
(search-modes scene
(lambda (mode)
(on-mouse-press mode button x y))))
(define-method (on-mouse-release (scene <scene>) button x y)
(search-modes scene
(lambda (mode)
(on-mouse-release mode button x y))))
(define-method (on-mouse-move (scene <scene>) x y x-rel y-rel buttons)
(search-modes scene
(lambda (mode)
(on-mouse-move mode x y x-rel y-rel buttons))))
(define-method (on-mouse-wheel (scene <scene>) x y)
(search-modes scene
(lambda (mode)
(on-mouse-wheel mode x y))))
(define-method (on-controller-press (scene <scene>) controller-id button)
(search-modes scene
(lambda (mode)
(on-controller-press mode controller-id button))))
(define-method (on-controller-release (scene <scene>) controller-id button)
(search-modes scene
(lambda (mode)
(on-controller-release mode controller-id button))))
(define-method (on-controller-move (scene <scene>) controller-id axis value)
(search-modes scene
(lambda (mode)
(on-controller-move mode controller-id axis value))))
(define-method (update (scene <scene>) dt)
(update (major-mode scene) dt)
(for-each (lambda (mode) (update mode dt))
(minor-modes scene)))
(define-method (pause (scene <scene>))
(for-each-child pause scene)
(next-method))
(define-method (resume (scene <scene>))
(for-each-child resume scene)
(next-method))
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