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Add modal input layers

This commit is contained in:
Skylar 2023-11-04 10:54:06 -05:00
parent 213552d0fc
commit 4f112832a7
1 changed files with 37 additions and 13 deletions
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50
sloth/editor.scm
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@ -4,25 +4,49 @@
#:use-module (ts)
#:export (core-loop))
(define* (core-loop #:optional (win (init-win)))
(define modes '(#:normal-mode #:insert-mode))
(define* (core-loop #:optional (win (init-win)) (mode #:normal-mode))
(define process-result
(case mode
((#:normal-mode) (normal-mode-process-input win (getch win)))
((#:insert-mode) (insert-mode-process-input win (getch win)))))
(if (memq process-result modes)
(core-loop win process-result)
(core-loop win mode)))
(define (insert-mode-process-input win key)
(define y (getcury win))
(define x (getcurx win))
(define ch (getch win))
(cond
((eqv? ch KEY_BACKSPACE)
((eqv? key KEY_BACKSPACE)
(delch win #:y y #:x (- x 1)))
((eqv? ch KEY_DC)
((eqv? key KEY_DC)
(delch win))
((eqv? ch KEY_LEFT)
((eqv? key KEY_LEFT)
(move win y (- x 1)))
((eqv? ch KEY_RIGHT)
((eqv? key KEY_RIGHT)
(move win y (+ x 1)))
((eqv? ch KEY_UP)
((eqv? key KEY_UP)
(move win (- y 1) x))
((eqv? ch KEY_DOWN)
((eqv? key KEY_DOWN)
(move win (+ y 1) x))
((eqv? ch #\q)
(endwin)
(quit))
(else (echochar win (normal ch))))
(core-loop win))
((eqv? key #\esc) #:normal-mode)
(else (echochar win (normal key)))))
(define (normal-mode-process-input win key)
(define y (getcury win))
(define x (getcurx win))
(cond
((eqv? key KEY_LEFT)
(move win y (- x 1)))
((eqv? key KEY_RIGHT)
(move win y (+ x 1)))
((eqv? key KEY_UP)
(move win (- y 1) x))
((eqv? key KEY_DOWN)
(move win (+ y 1) x))
((eqv? key #\i) #:insert-mode)
((eqv? key #\q)
(endwin)
(quit))))