diff options
Diffstat (limited to 'sdl2/input/keyboard.scm')
| -rw-r--r-- | sdl2/input/keyboard.scm | 289 |
1 files changed, 289 insertions, 0 deletions
diff --git a/sdl2/input/keyboard.scm b/sdl2/input/keyboard.scm new file mode 100644 index 0000000..0d25290 --- /dev/null +++ b/sdl2/input/keyboard.scm @@ -0,0 +1,289 @@ +;;; guile-sdl2 --- FFI bindings for SDL2 +;;; Copyright © 2017 David Thompson <davet@gnu.org> +;;; +;;; This file is part of guile-sdl2. +;;; +;;; Guile-sdl2 is free software; you can redistribute it and/or modify +;;; it under the terms of the GNU Lesser General Public License as +;;; published by the Free Software Foundation; either version 3 of the +;;; License, or (at your option) any later version. +;;; +;;; Guile-sdl2 is distributed in the hope that it will be useful, but +;;; WITHOUT ANY WARRANTY; without even the implied warranty of +;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +;;; General Public License for more details. +;;; +;;; You should have received a copy of the GNU Lesser General Public +;;; License along with guile-sdl2. If not, see +;;; <http://www.gnu.org/licenses/>. + +;;; Commentary: +;; +;; Keyboard input. +;; +;;; Code: + +(define-module (sdl2 input keyboard) + #:use-module (ice-9 hash-table) + #:use-module (ice-9 match) + #:use-module (srfi srfi-4) + #:use-module (system foreign) + #:use-module ((sdl2 bindings) #:prefix ffi:) + #:export (key-pressed? + key-released?)) + +(define scancode-map + (alist->hashq-table + `((unknown . ,ffi:SDL_SCANCODE_UNKNOWN) + (a . ,ffi:SDL_SCANCODE_A) + (b . ,ffi:SDL_SCANCODE_B) + (c . ,ffi:SDL_SCANCODE_C) + (d . ,ffi:SDL_SCANCODE_D) + (e . ,ffi:SDL_SCANCODE_E) + (f . ,ffi:SDL_SCANCODE_F) + (g . ,ffi:SDL_SCANCODE_G) + (h . ,ffi:SDL_SCANCODE_H) + (i . ,ffi:SDL_SCANCODE_I) + (j . ,ffi:SDL_SCANCODE_J) + (k . ,ffi:SDL_SCANCODE_K) + (l . ,ffi:SDL_SCANCODE_L) + (m . ,ffi:SDL_SCANCODE_M) + (n . ,ffi:SDL_SCANCODE_N) + (o . ,ffi:SDL_SCANCODE_O) + (p . ,ffi:SDL_SCANCODE_P) + (q . ,ffi:SDL_SCANCODE_Q) + (r . ,ffi:SDL_SCANCODE_R) + (s . ,ffi:SDL_SCANCODE_S) + (t . ,ffi:SDL_SCANCODE_T) + (u . ,ffi:SDL_SCANCODE_U) + (v . ,ffi:SDL_SCANCODE_V) + (w . ,ffi:SDL_SCANCODE_W) + (x . ,ffi:SDL_SCANCODE_X) + (y . ,ffi:SDL_SCANCODE_Y) + (z . ,ffi:SDL_SCANCODE_Z) + (1 . ,ffi:SDL_SCANCODE_1) + (2 . ,ffi:SDL_SCANCODE_2) + (3 . ,ffi:SDL_SCANCODE_3) + (4 . ,ffi:SDL_SCANCODE_4) + (5 . ,ffi:SDL_SCANCODE_5) + (6 . ,ffi:SDL_SCANCODE_6) + (7 . ,ffi:SDL_SCANCODE_7) + (8 . ,ffi:SDL_SCANCODE_8) + (9 . ,ffi:SDL_SCANCODE_9) + (0 . ,ffi:SDL_SCANCODE_0) + (return . ,ffi:SDL_SCANCODE_RETURN) + (escape . ,ffi:SDL_SCANCODE_ESCAPE) + (backspace . ,ffi:SDL_SCANCODE_BACKSPACE) + (tab . ,ffi:SDL_SCANCODE_TAB) + (space . ,ffi:SDL_SCANCODE_SPACE) + (minus . ,ffi:SDL_SCANCODE_MINUS) + (equals . ,ffi:SDL_SCANCODE_EQUALS) + (left-bracket . ,ffi:SDL_SCANCODE_LEFTBRACKET) + (right-bracket . ,ffi:SDL_SCANCODE_RIGHTBRACKET) + (backslash . ,ffi:SDL_SCANCODE_BACKSLASH) + (nonushash . ,ffi:SDL_SCANCODE_NONUSHASH) + (semicolon . ,ffi:SDL_SCANCODE_SEMICOLON) + (apostrophe . ,ffi:SDL_SCANCODE_APOSTROPHE) + (grave . ,ffi:SDL_SCANCODE_GRAVE) + (comma . ,ffi:SDL_SCANCODE_COMMA) + (period . ,ffi:SDL_SCANCODE_PERIOD) + (slash . ,ffi:SDL_SCANCODE_SLASH) + (caps-lock . ,ffi:SDL_SCANCODE_CAPSLOCK) + (f1 . ,ffi:SDL_SCANCODE_F1) + (f2 . ,ffi:SDL_SCANCODE_F2) + (f3 . ,ffi:SDL_SCANCODE_F3) + (f4 . ,ffi:SDL_SCANCODE_F4) + (f5 . ,ffi:SDL_SCANCODE_F5) + (f6 . ,ffi:SDL_SCANCODE_F6) + (f7 . ,ffi:SDL_SCANCODE_F7) + (f8 . ,ffi:SDL_SCANCODE_F8) + (f9 . ,ffi:SDL_SCANCODE_F9) + (f10 . ,ffi:SDL_SCANCODE_F10) + (f11 . ,ffi:SDL_SCANCODE_F11) + (f12 . ,ffi:SDL_SCANCODE_F12) + (print-screen . ,ffi:SDL_SCANCODE_PRINTSCREEN) + (scroll-lock . ,ffi:SDL_SCANCODE_SCROLLLOCK) + (pause . ,ffi:SDL_SCANCODE_PAUSE) + (insert . ,ffi:SDL_SCANCODE_INSERT) + (home . ,ffi:SDL_SCANCODE_HOME) + (page-up . ,ffi:SDL_SCANCODE_PAGEUP) + (delete . ,ffi:SDL_SCANCODE_DELETE) + (end . ,ffi:SDL_SCANCODE_END) + (page-down . ,ffi:SDL_SCANCODE_PAGEDOWN) + (right . ,ffi:SDL_SCANCODE_RIGHT) + (left . ,ffi:SDL_SCANCODE_LEFT) + (down . ,ffi:SDL_SCANCODE_DOWN) + (up . ,ffi:SDL_SCANCODE_UP) + (num-lock-clear . ,ffi:SDL_SCANCODE_NUMLOCKCLEAR) + (keypad-divide . ,ffi:SDL_SCANCODE_KP_DIVIDE) + (keypad-multiply . ,ffi:SDL_SCANCODE_KP_MULTIPLY) + (keypad-minus . ,ffi:SDL_SCANCODE_KP_MINUS) + (keypad-plus . ,ffi:SDL_SCANCODE_KP_PLUS) + (keypad-enter . ,ffi:SDL_SCANCODE_KP_ENTER) + (keypad-1 . ,ffi:SDL_SCANCODE_KP_1) + (keypad-2 . ,ffi:SDL_SCANCODE_KP_2) + (keypad-3 . ,ffi:SDL_SCANCODE_KP_3) + (keypad-4 . ,ffi:SDL_SCANCODE_KP_4) + (keypad-5 . ,ffi:SDL_SCANCODE_KP_5) + (keypad-6 . ,ffi:SDL_SCANCODE_KP_6) + (keypad-7 . ,ffi:SDL_SCANCODE_KP_7) + (keypad-8 . ,ffi:SDL_SCANCODE_KP_8) + (keypad-9 . ,ffi:SDL_SCANCODE_KP_9) + (keypad-0 . ,ffi:SDL_SCANCODE_KP_0) + (keypad-period . ,ffi:SDL_SCANCODE_KP_PERIOD) + (nonusbackslash . ,ffi:SDL_SCANCODE_NONUSBACKSLASH) + (application . ,ffi:SDL_SCANCODE_APPLICATION) + (power . ,ffi:SDL_SCANCODE_POWER) + (keypad-equals . ,ffi:SDL_SCANCODE_KP_EQUALS) + (f13 . ,ffi:SDL_SCANCODE_F13) + (f14 . ,ffi:SDL_SCANCODE_F14) + (f15 . ,ffi:SDL_SCANCODE_F15) + (f16 . ,ffi:SDL_SCANCODE_F16) + (f17 . ,ffi:SDL_SCANCODE_F17) + (f18 . ,ffi:SDL_SCANCODE_F18) + (f19 . ,ffi:SDL_SCANCODE_F19) + (f20 . ,ffi:SDL_SCANCODE_F20) + (f21 . ,ffi:SDL_SCANCODE_F21) + (f22 . ,ffi:SDL_SCANCODE_F22) + (f23 . ,ffi:SDL_SCANCODE_F23) + (f24 . ,ffi:SDL_SCANCODE_F24) + (execute . ,ffi:SDL_SCANCODE_EXECUTE) + (help . ,ffi:SDL_SCANCODE_HELP) + (menu . ,ffi:SDL_SCANCODE_MENU) + (select . ,ffi:SDL_SCANCODE_SELECT) + (stop . ,ffi:SDL_SCANCODE_STOP) + (again . ,ffi:SDL_SCANCODE_AGAIN) + (undo . ,ffi:SDL_SCANCODE_UNDO) + (cut . ,ffi:SDL_SCANCODE_CUT) + (copy . ,ffi:SDL_SCANCODE_COPY) + (paste . ,ffi:SDL_SCANCODE_PASTE) + (find . ,ffi:SDL_SCANCODE_FIND) + (mute . ,ffi:SDL_SCANCODE_MUTE) + (volume-up . ,ffi:SDL_SCANCODE_VOLUMEUP) + (volume-down . ,ffi:SDL_SCANCODE_VOLUMEDOWN) + (keypad-comma . ,ffi:SDL_SCANCODE_KP_COMMA) + (keypad-equalsas400 . ,ffi:SDL_SCANCODE_KP_EQUALSAS400) + (international-1 . ,ffi:SDL_SCANCODE_INTERNATIONAL1) + (international-2 . ,ffi:SDL_SCANCODE_INTERNATIONAL2) + (international-3 . ,ffi:SDL_SCANCODE_INTERNATIONAL3) + (international-4 . ,ffi:SDL_SCANCODE_INTERNATIONAL4) + (international-5 . ,ffi:SDL_SCANCODE_INTERNATIONAL5) + (international-6 . ,ffi:SDL_SCANCODE_INTERNATIONAL6) + (international-7 . ,ffi:SDL_SCANCODE_INTERNATIONAL7) + (international-8 . ,ffi:SDL_SCANCODE_INTERNATIONAL8) + (international-9 . ,ffi:SDL_SCANCODE_INTERNATIONAL9) + (lang-1 . ,ffi:SDL_SCANCODE_LANG1) + (lang-2 . ,ffi:SDL_SCANCODE_LANG2) + (lang-3 . ,ffi:SDL_SCANCODE_LANG3) + (lang-4 . ,ffi:SDL_SCANCODE_LANG4) + (lang-5 . ,ffi:SDL_SCANCODE_LANG5) + (lang-6 . ,ffi:SDL_SCANCODE_LANG6) + (lang-7 . ,ffi:SDL_SCANCODE_LANG7) + (lang-8 . ,ffi:SDL_SCANCODE_LANG8) + (lang-9 . ,ffi:SDL_SCANCODE_LANG9) + (alt-erase . ,ffi:SDL_SCANCODE_ALTERASE) + (sysreq . ,ffi:SDL_SCANCODE_SYSREQ) + (cancel . ,ffi:SDL_SCANCODE_CANCEL) + (clear . ,ffi:SDL_SCANCODE_CLEAR) + (prior . ,ffi:SDL_SCANCODE_PRIOR) + (return-2 . ,ffi:SDL_SCANCODE_RETURN2) + (separator . ,ffi:SDL_SCANCODE_SEPARATOR) + (out . ,ffi:SDL_SCANCODE_OUT) + (oper . ,ffi:SDL_SCANCODE_OPER) + (clear-again . ,ffi:SDL_SCANCODE_CLEARAGAIN) + (crsel . ,ffi:SDL_SCANCODE_CRSEL) + (exsel . ,ffi:SDL_SCANCODE_EXSEL) + (keypad-00 . ,ffi:SDL_SCANCODE_KP_00) + (keypad-000 . ,ffi:SDL_SCANCODE_KP_000) + (thousands-separator . ,ffi:SDL_SCANCODE_THOUSANDSSEPARATOR) + (decimal-separator . ,ffi:SDL_SCANCODE_DECIMALSEPARATOR) + (currency-unit . ,ffi:SDL_SCANCODE_CURRENCYUNIT) + (current-subunit . ,ffi:SDL_SCANCODE_CURRENCYSUBUNIT) + (keypad-left-paren . ,ffi:SDL_SCANCODE_KP_LEFTPAREN) + (keypad-right-paren . ,ffi:SDL_SCANCODE_KP_RIGHTPAREN) + (keypad-left-brace . ,ffi:SDL_SCANCODE_KP_LEFTBRACE) + (keypad-right-brace . ,ffi:SDL_SCANCODE_KP_RIGHTBRACE) + (keypad-tab . ,ffi:SDL_SCANCODE_KP_TAB) + (keypad-backspace . ,ffi:SDL_SCANCODE_KP_BACKSPACE) + (keypad-a . ,ffi:SDL_SCANCODE_KP_A) + (keypad-b . ,ffi:SDL_SCANCODE_KP_B) + (keypad-c . ,ffi:SDL_SCANCODE_KP_C) + (keypad-d . ,ffi:SDL_SCANCODE_KP_D) + (keypad-e . ,ffi:SDL_SCANCODE_KP_E) + (keypad-f . ,ffi:SDL_SCANCODE_KP_F) + (keypad-xor . ,ffi:SDL_SCANCODE_KP_XOR) + (keypad-power . ,ffi:SDL_SCANCODE_KP_POWER) + (keypad-percent . ,ffi:SDL_SCANCODE_KP_PERCENT) + (keypad-less . ,ffi:SDL_SCANCODE_KP_LESS) + (keypad-greater . ,ffi:SDL_SCANCODE_KP_GREATER) + (keypad-ampersand . ,ffi:SDL_SCANCODE_KP_AMPERSAND) + (keypad-double-ampersand . ,ffi:SDL_SCANCODE_KP_DBLAMPERSAND) + (keypad-vertical-bar . ,ffi:SDL_SCANCODE_KP_VERTICALBAR) + (keypad-double-vertical-bar . ,ffi:SDL_SCANCODE_KP_DBLVERTICALBAR) + (keypad-colon . ,ffi:SDL_SCANCODE_KP_COLON) + (keypad-hash . ,ffi:SDL_SCANCODE_KP_HASH) + (keypad-space . ,ffi:SDL_SCANCODE_KP_SPACE) + (keypad-at . ,ffi:SDL_SCANCODE_KP_AT) + (keypad-exclam . ,ffi:SDL_SCANCODE_KP_EXCLAM) + (keypad-mem-store . ,ffi:SDL_SCANCODE_KP_MEMSTORE) + (keypad-mem-recall . ,ffi:SDL_SCANCODE_KP_MEMRECALL) + (keypad-mem-clear . ,ffi:SDL_SCANCODE_KP_MEMCLEAR) + (keypad-mem-add . ,ffi:SDL_SCANCODE_KP_MEMADD) + (keypadd-mem-subtract . ,ffi:SDL_SCANCODE_KP_MEMSUBTRACT) + (keypad-mem-multiply . ,ffi:SDL_SCANCODE_KP_MEMMULTIPLY) + (keypad-mem-divide . ,ffi:SDL_SCANCODE_KP_MEMDIVIDE) + (keypad-plus-minus . ,ffi:SDL_SCANCODE_KP_PLUSMINUS) + (keypad-clear . ,ffi:SDL_SCANCODE_KP_CLEAR) + (keypad-clear-entry . ,ffi:SDL_SCANCODE_KP_CLEARENTRY) + (keypad-binary . ,ffi:SDL_SCANCODE_KP_BINARY) + (keypad-octal . ,ffi:SDL_SCANCODE_KP_OCTAL) + (keypad-decimal . ,ffi:SDL_SCANCODE_KP_DECIMAL) + (keypad-hexadecimal . ,ffi:SDL_SCANCODE_KP_HEXADECIMAL) + (left-control . ,ffi:SDL_SCANCODE_LCTRL) + (left-shift . ,ffi:SDL_SCANCODE_LSHIFT) + (left-alt . ,ffi:SDL_SCANCODE_LALT) + (left-gui . ,ffi:SDL_SCANCODE_LGUI) + (right-control . ,ffi:SDL_SCANCODE_RCTRL) + (right-shift . ,ffi:SDL_SCANCODE_RSHIFT) + (right-alt . ,ffi:SDL_SCANCODE_RALT) + (right-cui . ,ffi:SDL_SCANCODE_RGUI) + (mode . ,ffi:SDL_SCANCODE_MODE) + (audio-next . ,ffi:SDL_SCANCODE_AUDIONEXT) + (audio-prev . ,ffi:SDL_SCANCODE_AUDIOPREV) + (audio-stop . ,ffi:SDL_SCANCODE_AUDIOSTOP) + (audio-play . ,ffi:SDL_SCANCODE_AUDIOPLAY) + (audio-mute . ,ffi:SDL_SCANCODE_AUDIOMUTE) + (media-select . ,ffi:SDL_SCANCODE_MEDIASELECT) + (www . ,ffi:SDL_SCANCODE_WWW) + (mail . ,ffi:SDL_SCANCODE_MAIL) + (calculator . ,ffi:SDL_SCANCODE_CALCULATOR) + (computer . ,ffi:SDL_SCANCODE_COMPUTER) + (ac-search . ,ffi:SDL_SCANCODE_AC_SEARCH) + (ac-home . ,ffi:SDL_SCANCODE_AC_HOME) + (ac-back . ,ffi:SDL_SCANCODE_AC_BACK) + (ac-forward . ,ffi:SDL_SCANCODE_AC_FORWARD) + (ac-stop . ,ffi:SDL_SCANCODE_AC_STOP) + (ac-refresh . ,ffi:SDL_SCANCODE_AC_REFRESH) + (ac-bookmarks . ,ffi:SDL_SCANCODE_AC_BOOKMARKS) + (brightness-down . ,ffi:SDL_SCANCODE_BRIGHTNESSDOWN) + (brightness-up . ,ffi:SDL_SCANCODE_BRIGHTNESSUP) + (display-switch . ,ffi:SDL_SCANCODE_DISPLAYSWITCH) + (keyboard-illum-toggle . ,ffi:SDL_SCANCODE_KBDILLUMTOGGLE) + (keyboard-illum-down . ,ffi:SDL_SCANCODE_KBDILLUMDOWN) + (keyboard-illum-up . ,ffi:SDL_SCANCODE_KBDILLUMUP) + (eject . ,ffi:SDL_SCANCODE_EJECT) + (sleep . ,ffi:SDL_SCANCODE_SLEEP) + (app-1 . ,ffi:SDL_SCANCODE_APP1) + (app-2 . ,ffi:SDL_SCANCODE_APP2)))) + +(define key-pressed? + (let ((keystate (pointer->bytevector + (ffi:sdl-get-keyboard-state %null-pointer) + ffi:SDL_NUM_SCANCODES))) + (lambda (key) + "Return #t if KEY is currently being pressed." + (= 1 (u8vector-ref keystate (hashq-ref scancode-map key)))))) + +(define (key-released? key) + "Return #t if KEY is not currently being pressed." + (not (key-pressed? key))) |