sdl

FORK: Simple Directmedia Layer
git clone https://git.neptards.moe/neptards/sdl.git
Log | Files | Refs

keyboard.c (4498B)

      1 /*
      2   Simple DirectMedia Layer
      3   Copyright (C) 2017 BlackBerry Limited
      4 
      5   This software is provided 'as-is', without any express or implied
      6   warranty.  In no event will the authors be held liable for any damages
      7   arising from the use of this software.
      8 
      9   Permission is granted to anyone to use this software for any purpose,
     10   including commercial applications, and to alter it and redistribute it
     11   freely, subject to the following restrictions:
     12 
     13   1. The origin of this software must not be misrepresented; you must not
     14      claim that you wrote the original software. If you use this software
     15      in a product, an acknowledgment in the product documentation would be
     16      appreciated but is not required.
     17   2. Altered source versions must be plainly marked as such, and must not be
     18      misrepresented as being the original software.
     19   3. This notice may not be removed or altered from any source distribution.
     20 */
     21 
     22 #include "../../SDL_internal.h"
     23 #include "../../events/SDL_keyboard_c.h"
     24 #include "SDL_scancode.h"
     25 #include "SDL_events.h"
     26 #include "sdl_qnx.h"
     27 #include <sys/keycodes.h>
     28 
     29 /**
     30  * A map thta translates Screen key names to SDL scan codes.
     31  * This map is incomplete, but should include most major keys.
     32  */
     33 static int key_to_sdl[] = {
     34     [KEYCODE_SPACE] = SDL_SCANCODE_SPACE,
     35     [KEYCODE_APOSTROPHE] = SDL_SCANCODE_APOSTROPHE,
     36     [KEYCODE_COMMA] = SDL_SCANCODE_COMMA,
     37     [KEYCODE_MINUS] = SDL_SCANCODE_MINUS,
     38     [KEYCODE_PERIOD] = SDL_SCANCODE_PERIOD,
     39     [KEYCODE_SLASH] = SDL_SCANCODE_SLASH,
     40     [KEYCODE_ZERO] = SDL_SCANCODE_0,
     41     [KEYCODE_ONE] = SDL_SCANCODE_1,
     42     [KEYCODE_TWO] = SDL_SCANCODE_2,
     43     [KEYCODE_THREE] = SDL_SCANCODE_3,
     44     [KEYCODE_FOUR] = SDL_SCANCODE_4,
     45     [KEYCODE_FIVE] = SDL_SCANCODE_5,
     46     [KEYCODE_SIX] = SDL_SCANCODE_6,
     47     [KEYCODE_SEVEN] = SDL_SCANCODE_7,
     48     [KEYCODE_EIGHT] = SDL_SCANCODE_8,
     49     [KEYCODE_NINE] = SDL_SCANCODE_9,
     50     [KEYCODE_SEMICOLON] = SDL_SCANCODE_SEMICOLON,
     51     [KEYCODE_EQUAL] = SDL_SCANCODE_EQUALS,
     52     [KEYCODE_LEFT_BRACKET] = SDL_SCANCODE_LEFTBRACKET,
     53     [KEYCODE_BACK_SLASH] = SDL_SCANCODE_BACKSLASH,
     54     [KEYCODE_RIGHT_BRACKET] = SDL_SCANCODE_RIGHTBRACKET,
     55     [KEYCODE_GRAVE] = SDL_SCANCODE_GRAVE,
     56     [KEYCODE_A] = SDL_SCANCODE_A,
     57     [KEYCODE_B] = SDL_SCANCODE_B,
     58     [KEYCODE_C] = SDL_SCANCODE_C,
     59     [KEYCODE_D] = SDL_SCANCODE_D,
     60     [KEYCODE_E] = SDL_SCANCODE_E,
     61     [KEYCODE_F] = SDL_SCANCODE_F,
     62     [KEYCODE_G] = SDL_SCANCODE_G,
     63     [KEYCODE_H] = SDL_SCANCODE_H,
     64     [KEYCODE_I] = SDL_SCANCODE_I,
     65     [KEYCODE_J] = SDL_SCANCODE_J,
     66     [KEYCODE_K] = SDL_SCANCODE_K,
     67     [KEYCODE_L] = SDL_SCANCODE_L,
     68     [KEYCODE_M] = SDL_SCANCODE_M,
     69     [KEYCODE_N] = SDL_SCANCODE_N,
     70     [KEYCODE_O] = SDL_SCANCODE_O,
     71     [KEYCODE_P] = SDL_SCANCODE_P,
     72     [KEYCODE_Q] = SDL_SCANCODE_Q,
     73     [KEYCODE_R] = SDL_SCANCODE_R,
     74     [KEYCODE_S] = SDL_SCANCODE_S,
     75     [KEYCODE_T] = SDL_SCANCODE_T,
     76     [KEYCODE_U] = SDL_SCANCODE_U,
     77     [KEYCODE_V] = SDL_SCANCODE_V,
     78     [KEYCODE_W] = SDL_SCANCODE_W,
     79     [KEYCODE_X] = SDL_SCANCODE_X,
     80     [KEYCODE_Y] = SDL_SCANCODE_Y,
     81     [KEYCODE_Z] = SDL_SCANCODE_Z,
     82     [KEYCODE_UP] = SDL_SCANCODE_UP,
     83     [KEYCODE_DOWN] = SDL_SCANCODE_DOWN,
     84     [KEYCODE_LEFT] = SDL_SCANCODE_LEFT,
     85     [KEYCODE_PG_UP] = SDL_SCANCODE_PAGEUP,
     86     [KEYCODE_PG_DOWN] = SDL_SCANCODE_PAGEDOWN,
     87     [KEYCODE_RIGHT] = SDL_SCANCODE_RIGHT,
     88     [KEYCODE_RETURN] = SDL_SCANCODE_RETURN,
     89     [KEYCODE_TAB] = SDL_SCANCODE_TAB,
     90     [KEYCODE_ESCAPE] = SDL_SCANCODE_ESCAPE,
     91 };
     92 
     93 /**
     94  * Called from the event dispatcher when a keyboard event is encountered.
     95  * Translates the event such that it can be handled by SDL.
     96  * @param   event   Screen keyboard event
     97  */
     98 void
     99 handleKeyboardEvent(screen_event_t event)
    100 {
    101     int             val;
    102     SDL_Scancode    scancode;
    103 
    104     // Get the key value.
    105     if (screen_get_event_property_iv(event, SCREEN_PROPERTY_SYM, &val) < 0) {
    106         return;
    107     }
    108 
    109     // Skip unrecognized keys.
    110     if ((val < 0) || (val >= SDL_TABLESIZE(key_to_sdl))) {
    111         return;
    112     }
    113 
    114     // Translate to an SDL scan code.
    115     scancode = key_to_sdl[val];
    116     if (scancode == 0) {
    117         return;
    118     }
    119 
    120     // Get event flags (key state).
    121     if (screen_get_event_property_iv(event, SCREEN_PROPERTY_FLAGS, &val) < 0) {
    122         return;
    123     }
    124 
    125     // Propagate the event to SDL.
    126     // FIXME:
    127     // Need to handle more key states (such as key combinations).
    128     if (val & KEY_DOWN) {
    129         SDL_SendKeyboardKey(SDL_PRESSED, scancode);
    130     } else {
    131         SDL_SendKeyboardKey(SDL_RELEASED, scancode);
    132     }
    133 }