forked from benob/rs97_st-sdl
-
Notifications
You must be signed in to change notification settings - Fork 0
/
keyboard.c
285 lines (260 loc) · 12.2 KB
/
keyboard.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
#include <SDL/SDL.h>
#include "font.h"
#define NUM_ROWS 6
#define NUM_KEYS 17
//#ifdef RS97
#define KEY_UP SDLK_UP
#define KEY_DOWN SDLK_DOWN
#define KEY_LEFT SDLK_LEFT
#define KEY_RIGHT SDLK_RIGHT
#define KEY_ENTER SDLK_LCTRL // A
#define KEY_TOGGLE SDLK_LALT // B
#define KEY_BACKSPACE SDLK_BACKSPACE // R
#define KEY_SHIFT SDLK_TAB // L
#define KEY_LOCATION SDLK_LSHIFT // Y
#define KEY_ACTIVATE SDLK_SPACE // X
#define KEY_QUIT SDLK_ESCAPE // SELECT
/*#else
#define KEY_UP SDLK_UP
#define KEY_DOWN SDLK_DOWN
#define KEY_LEFT SDLK_LEFT
#define KEY_RIGHT SDLK_RIGHT
#define KEY_ENTER SDLK_RETURN
#define KEY_TOGGLE SDLK_SPACE
#define KEY_BACKSPACE SDLK_b
#define KEY_SHIFT SDLK_s
#define KEY_LOCATION SDLK_l
#define KEY_ACTIVATE SDLK_BACKQUOTE
#endif*/
#define KMOD_SYNTHETIC (1 << 13)
static int row_length[NUM_ROWS] = {12, 16, 16, 14, 13, 8};
static SDLKey keys[2][NUM_ROWS][NUM_KEYS] = {
{
{SDLK_ESCAPE, SDLK_F1, SDLK_F2, SDLK_F3, SDLK_F4, SDLK_F5, SDLK_F6, SDLK_F8, SDLK_F9, SDLK_F10, SDLK_F11},
{SDLK_BACKQUOTE, SDLK_1, SDLK_2, SDLK_3, SDLK_4, SDLK_5, SDLK_6, SDLK_7, SDLK_8, SDLK_9, SDLK_0, SDLK_MINUS, SDLK_EQUALS, SDLK_BACKSPACE, SDLK_INSERT, SDLK_DELETE},
{SDLK_TAB, SDLK_q, SDLK_w, SDLK_e, SDLK_r, SDLK_t, SDLK_y, SDLK_u, SDLK_i, SDLK_o, SDLK_p, SDLK_LEFTBRACKET, SDLK_RIGHTBRACKET, SDLK_BACKSLASH, SDLK_HOME, SDLK_END},
{SDLK_CAPSLOCK, SDLK_a, SDLK_s, SDLK_d, SDLK_f, SDLK_g, SDLK_h, SDLK_j, SDLK_k, SDLK_l, SDLK_SEMICOLON, SDLK_QUOTE, SDLK_RETURN, SDLK_PAGEUP},
{SDLK_LSHIFT, SDLK_z, SDLK_x, SDLK_c, SDLK_v, SDLK_b, SDLK_n, SDLK_m, SDLK_COMMA, SDLK_PERIOD, SDLK_SLASH, SDLK_RSHIFT, SDLK_PAGEDOWN},
{SDLK_LCTRL, SDLK_LSUPER, SDLK_LALT, SDLK_SPACE, SDLK_RALT, SDLK_RSUPER, SDLK_MENU, SDLK_RCTRL}
}, {
{SDLK_ESCAPE, SDLK_F1, SDLK_F2, SDLK_F3, SDLK_F4, SDLK_F5, SDLK_F6, SDLK_F8, SDLK_F9, SDLK_F10, SDLK_F11},
{'~', SDLK_EXCLAIM, SDLK_AT, SDLK_HASH, SDLK_DOLLAR, '%', SDLK_CARET, SDLK_AMPERSAND, SDLK_ASTERISK, SDLK_LEFTPAREN, SDLK_RIGHTPAREN, SDLK_UNDERSCORE, SDLK_PLUS, SDLK_BACKSPACE, SDLK_INSERT, SDLK_DELETE},
{SDLK_TAB, SDLK_q, SDLK_w, SDLK_e, SDLK_r, SDLK_t, SDLK_y, SDLK_u, SDLK_i, SDLK_o, SDLK_p, '{', '}', '|', SDLK_HOME, SDLK_END},
{SDLK_CAPSLOCK, SDLK_a, SDLK_s, SDLK_d, SDLK_f, SDLK_g, SDLK_h, SDLK_j, SDLK_k, SDLK_l, SDLK_COLON, SDLK_QUOTEDBL, SDLK_RETURN, SDLK_PAGEUP},
{SDLK_LSHIFT, SDLK_z, SDLK_x, SDLK_c, SDLK_v, SDLK_b, SDLK_n, SDLK_m, SDLK_LESS, SDLK_GREATER, SDLK_QUESTION, SDLK_RSHIFT, SDLK_PAGEDOWN},
{SDLK_LCTRL, SDLK_LSUPER, SDLK_LALT, SDLK_SPACE, SDLK_RALT, SDLK_RSUPER, SDLK_MENU, SDLK_RCTRL}
}
};
static char* syms[2][NUM_ROWS][NUM_KEYS] = {
{
{"esc", "F1", "F2", "F3", "F4", "F5", "F6", "F7", "F8", "F9", "F10", "F11", NULL},
{"`", "1", "2", "3", "4", "5", "6", "7", "8", "9", "0", "-", "=", "bksp", "ins", "del", NULL},
{"tab", "q", "w", "e", "r", "t", "y", "u", "i", "o", "p", "[", "]", "\\", "home", "end", NULL},
{"caps", "a", "s", "d", "f", "g", "h", "j", "k", "l", ";", "'", "enter", "pg up", NULL},
{"shift", "z", "x", "c", "v", "b", "n", "m", ",", ".", "/", " shift", "pg dn", NULL},
{"ctrl", "win", "alt", " space ", "alt", "win", "menu", "ctrl", NULL}
}, {
{"esc", "F1", "F2", "F3", "F4", "F5", "F6", "F7", "F8", "F9", "F10", "F11", NULL},
{"~", "!", "@", "#", "$", "%", "^", "&", "*", "(", ")", "_", "+", "bksp", "ins", "del", NULL},
{"tab", "Q", "W", "E", "R", "T", "Y", "U", "I", "O", "P", "{", "}", "|", "home", "end", NULL},
{"caps", "A", "S", "D", "F", "G", "H", "J", "K", "L", ":", "\"", "enter", "pg up", NULL},
{"shift", "Z", "X", "C", "V", "B", "N", "M", "<", ">", "?", " shift", "pg dn", NULL},
{"ctrl", "win", "alt", " space ", "alt", "win", "menu", "ctrl", NULL}
}
};
static unsigned char toggled[NUM_ROWS][NUM_KEYS];
static int selected_i = 0, selected_j = 0;
static int shifted = 0;
static int location = 0;
static int active = 1;
static int mod_state = 0;
void init_keyboard() {
for(int j = 0; j < NUM_ROWS; j++)
for(int i = 0; i < NUM_KEYS; i++)
toggled[j][i] = 0;
selected_i = selected_j = shifted = location = 0;
active = 1;
mod_state = 0;
}
void draw_keyboard(SDL_Surface* surface) {
if(!active) return;
unsigned short bg_color = SDL_MapRGB(surface->format, 64, 64, 64);
unsigned short key_color = SDL_MapRGB(surface->format, 128, 128, 128);
unsigned short text_color = SDL_MapRGB(surface->format, 0, 0, 0);
unsigned short sel_color = SDL_MapRGB(surface->format, 128, 255, 128);
unsigned short sel_toggled_color = SDL_MapRGB(surface->format, 255, 255, 128);
unsigned short toggled_color = SDL_MapRGB(surface->format, 192, 192, 0);
int total_length = -1;
for(int i = 0; i < NUM_KEYS && syms[0][0][i]; i++) {
total_length += (1 + strlen(syms[0][0][i])) * 6;
}
int center_x = (surface->w - total_length) / 2;
int x = center_x, y = surface->h - 8 * (NUM_ROWS + 1);
if(location == 1) y = 8;
SDL_Rect rect = {x - 4, y - 3, total_length + 3, NUM_ROWS * 8 + 3};
SDL_FillRect(surface, &rect, bg_color);
for(int j = 0; j < NUM_ROWS; j++) {
x = center_x;
for(int i = 0; i < row_length[j]; i++) {
int length = strlen(syms[shifted][j][i]);
SDL_Rect r2 = {x - 2, y - 1, length * 6 + 4, 7};
if(toggled[j][i]) {
if(selected_i == i && selected_j == j) {
SDL_FillRect(surface, &r2, sel_toggled_color);
} else {
SDL_FillRect(surface, &r2, toggled_color);
}
} else if(selected_i == i && selected_j == j) {
SDL_FillRect(surface, &r2, sel_color);
} else {
SDL_FillRect(surface, &r2, key_color);
}
draw_string(surface, syms[shifted][j][i], x, y, text_color);
x += 6 * (length + 1);
}
y += 8;
}
}
enum { STATE_TYPED, STATE_UP, STATE_DOWN };
void update_modstate(int key, int state) {
//SDLMod mod_state = SDL_GetModState();
if(state == STATE_DOWN) {
if(key == SDLK_LSHIFT) mod_state |= KMOD_LSHIFT;
else if(key == SDLK_RSHIFT) mod_state |= KMOD_RSHIFT;
else if(key == SDLK_LCTRL) mod_state |= KMOD_LCTRL;
else if(key == SDLK_RCTRL) mod_state |= KMOD_RCTRL;
else if(key == SDLK_LALT) mod_state |= KMOD_LALT;
else if(key == SDLK_RALT) mod_state |= KMOD_RALT;
else if(key == SDLK_LMETA) mod_state |= KMOD_LMETA;
else if(key == SDLK_RMETA) mod_state |= KMOD_RMETA;
//else if(key == SDLK_NUM) mod_state |= KMOD_NUM;
else if(key == SDLK_CAPSLOCK) mod_state |= KMOD_CAPS;
else if(key == SDLK_MODE) mod_state |= KMOD_MODE;
} else if(state == STATE_UP) {
if(key == SDLK_LSHIFT) mod_state &= ~KMOD_LSHIFT;
else if(key == SDLK_RSHIFT) mod_state &= ~KMOD_RSHIFT;
else if(key == SDLK_LCTRL) mod_state &= ~KMOD_LCTRL;
else if(key == SDLK_RCTRL) mod_state &= ~KMOD_RCTRL;
else if(key == SDLK_LALT) mod_state &= ~KMOD_LALT;
else if(key == SDLK_RALT) mod_state &= ~KMOD_RALT;
else if(key == SDLK_LMETA) mod_state &= ~KMOD_LMETA;
else if(key == SDLK_RMETA) mod_state &= ~KMOD_RMETA;
//else if(key == SDLK_NUM) mod_state &= ~KMOD_NUM;
else if(key == SDLK_CAPSLOCK) mod_state &= ~KMOD_CAPS;
else if(key == SDLK_MODE) mod_state &= ~KMOD_MODE;
}
SDL_SetModState(mod_state);
}
void simulate_key(int key, int state) {
update_modstate(key, state);
unsigned short unicode = 0;
if(key < 128) {
unicode = key;
}
SDL_Event event = {
.key = {
.type = SDL_KEYDOWN,
.state = SDL_PRESSED,
.keysym = {
.scancode = 0,
.sym = key,
.mod = KMOD_SYNTHETIC,
.unicode = unicode,
}
}
};
if(state == STATE_TYPED) {
SDL_PushEvent(&event);
event.key.type = SDL_KEYUP;
event.key.state = SDL_RELEASED;
} else if(state == STATE_UP) {
event.key.type = SDL_KEYUP;
event.key.state = SDL_RELEASED;
}
SDL_PushEvent(&event);
printf("%d\n", key);
}
int handle_keyboard_event(SDL_Event* event) {
if(event->key.type == SDL_KEYDOWN && !(event->key.keysym.mod & KMOD_SYNTHETIC) && event->key.keysym.sym == KEY_ACTIVATE) {
active = ! active;
return 1;
}
if(!active) return 0;
if((event->key.type == SDL_KEYUP || event->key.type == SDL_KEYDOWN) && event->key.keysym.mod & KMOD_SYNTHETIC) return 0;
if(event->key.type == SDL_KEYDOWN && event->key.state == SDL_PRESSED) {
if(event->key.keysym.sym == KEY_QUIT) {
exit(0);
} else if(event->key.keysym.sym == KEY_UP && selected_j > 0) {
selected_j--;
selected_i = selected_i * row_length[selected_j] / row_length[selected_j + 1];
} else if(event->key.keysym.sym == KEY_DOWN && selected_j < NUM_ROWS - 1) {
selected_j++;
selected_i = selected_i * row_length[selected_j] / row_length[selected_j - 1];
} else if(event->key.keysym.sym == KEY_LEFT && selected_i > 0) {
selected_i--;
} else if(event->key.keysym.sym == KEY_RIGHT && selected_i < row_length[selected_j] - 1) {
selected_i++;
} else if(event->key.keysym.sym == KEY_SHIFT) {
shifted = 1;
toggled[4][0] = 1;
update_modstate(SDLK_LSHIFT, STATE_DOWN);
} else if(event->key.keysym.sym == KEY_LOCATION) {
location = !location;
} else if(event->key.keysym.sym == KEY_BACKSPACE) {
simulate_key(SDLK_BACKSPACE, STATE_TYPED);
} else if(event->key.keysym.sym == KEY_TOGGLE) {
toggled[selected_j][selected_i] = 1 - toggled[selected_j][selected_i];
if(toggled[selected_j][selected_i]) simulate_key(keys[shifted][selected_j][selected_i], STATE_DOWN);
else simulate_key(keys[shifted][selected_j][selected_i], STATE_UP);
if(selected_j == 4 && (selected_i == 0 || selected_i == 11)) shifted = toggled[selected_j][selected_i];
} else if(event->key.keysym.sym == KEY_ENTER) {
int key = keys[shifted][selected_j][selected_i];
if(mod_state & KMOD_CTRL) {
if (key >= 64 && key < 64 + 32) simulate_key(key - 64, STATE_DOWN);
else if (key >= 97 && key < 97 + 31) simulate_key(key - 96, STATE_DOWN);
} else if(mod_state & KMOD_SHIFT && key >= SDLK_a && key <= SDLK_z) {
simulate_key(key - SDLK_a + 'A', STATE_TYPED);
} else {
simulate_key(key, STATE_TYPED);
}
}
} else if(event->key.type == SDL_KEYUP || event->key.state == SDL_RELEASED) {
if(event->key.keysym.sym == KEY_SHIFT) {
shifted = 0;
toggled[4][0] = 0;
update_modstate(SDLK_LSHIFT, STATE_UP);
}
}
return 1;
}
#ifdef TEST_KEYBOARD
int main() {
SDL_Init( SDL_INIT_EVERYTHING );
SDL_Surface* screen = SDL_SetVideoMode(320 * 4, 240 * 4, 16, SDL_SWSURFACE );
SDL_Surface* buffer = SDL_CreateRGBSurface(SDL_SWSURFACE, 320, 240, 16, screen->format->Rmask, screen->format->Gmask, screen->format->Bmask, screen->format->Amask);
while(1) {
SDL_Event event;
while( SDL_PollEvent( &event ) ) {
if( event.type == SDL_QUIT ) {
return 0;
} else {
handle_keyboard_event(&event);
}
}
SDL_Rect r = {0, 0, buffer->w, buffer->h};
SDL_FillRect(buffer, &r, 0);
draw_keyboard(buffer);
SDL_LockSurface(buffer);
for(int j = 0; j < buffer->h; j++) {
for(int i = 0; i < buffer->w; i++) {
SDL_Rect rect = {i * 4, j * 4, 4, 4};
SDL_FillRect(screen, &rect, ((unsigned short*)buffer->pixels)[j * (buffer->pitch >> 1) + i]);
}
}
SDL_UnlockSurface(buffer);
SDL_Flip(screen);
SDL_Delay(1000 / 30);
}
SDL_Quit();
}
#endif