Atlas - keyboard.c
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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 */
33static 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 */
98void
99handleKeyboardEvent(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}
134
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