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
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
|
/* Public Domain Curses */
#include "pdcsdl.h"
RCSID("$Id: pdckbd.c,v 1.20 2008/07/14 04:24:52 wmcbrine Exp $")
/*man-start**************************************************************
Name: pdckbd
Synopsis:
unsigned long PDC_get_input_fd(void);
Description:
PDC_get_input_fd() returns the file descriptor that PDCurses
reads its input from. It can be used for select().
Portability X/Open BSD SYS V
PDC_get_input_fd - - -
**man-end****************************************************************/
#include <string.h>
unsigned long pdc_key_modifiers = 0L;
static SDL_Event event;
static SDLKey oldkey;
static MOUSE_STATUS old_mouse_status;
static struct
{
SDLKey keycode;
bool numkeypad;
unsigned short normal;
unsigned short shifted;
unsigned short control;
unsigned short alt;
} key_table[] =
{
/* keycode keypad normal shifted control alt*/
{SDLK_LEFT, FALSE, KEY_LEFT, KEY_SLEFT, CTL_LEFT, ALT_LEFT},
{SDLK_RIGHT, FALSE, KEY_RIGHT, KEY_SRIGHT, CTL_RIGHT, ALT_RIGHT},
{SDLK_UP, FALSE, KEY_UP, KEY_SUP, CTL_UP, ALT_UP},
{SDLK_DOWN, FALSE, KEY_DOWN, KEY_SDOWN, CTL_DOWN, ALT_DOWN},
{SDLK_HOME, FALSE, KEY_HOME, KEY_SHOME, CTL_HOME, ALT_HOME},
{SDLK_END, FALSE, KEY_END, KEY_SEND, CTL_END, ALT_END},
{SDLK_PAGEUP, FALSE, KEY_PPAGE, KEY_SPREVIOUS,CTL_PGUP, ALT_PGUP},
{SDLK_PAGEDOWN,FALSE, KEY_NPAGE, KEY_SNEXT, CTL_PGDN, ALT_PGDN},
{SDLK_INSERT, FALSE, KEY_IC, KEY_SIC, CTL_INS, ALT_INS},
{SDLK_DELETE, FALSE, KEY_DC, KEY_SDC, CTL_DEL, ALT_DEL},
{SDLK_F1, FALSE, KEY_F(1), KEY_F(13), KEY_F(25), KEY_F(37)},
{SDLK_F2, FALSE, KEY_F(2), KEY_F(14), KEY_F(26), KEY_F(38)},
{SDLK_F3, FALSE, KEY_F(3), KEY_F(15), KEY_F(27), KEY_F(39)},
{SDLK_F4, FALSE, KEY_F(4), KEY_F(16), KEY_F(28), KEY_F(40)},
{SDLK_F5, FALSE, KEY_F(5), KEY_F(17), KEY_F(29), KEY_F(41)},
{SDLK_F6, FALSE, KEY_F(6), KEY_F(18), KEY_F(30), KEY_F(42)},
{SDLK_F7, FALSE, KEY_F(7), KEY_F(19), KEY_F(31), KEY_F(43)},
{SDLK_F8, FALSE, KEY_F(8), KEY_F(20), KEY_F(32), KEY_F(44)},
{SDLK_F9, FALSE, KEY_F(9), KEY_F(21), KEY_F(33), KEY_F(45)},
{SDLK_F10, FALSE, KEY_F(10), KEY_F(22), KEY_F(34), KEY_F(46)},
{SDLK_F11, FALSE, KEY_F(11), KEY_F(23), KEY_F(35), KEY_F(47)},
{SDLK_F12, FALSE, KEY_F(12), KEY_F(24), KEY_F(36), KEY_F(48)},
{SDLK_F13, FALSE, KEY_F(13), KEY_F(25), KEY_F(37), KEY_F(49)},
{SDLK_F14, FALSE, KEY_F(14), KEY_F(26), KEY_F(38), KEY_F(50)},
{SDLK_F15, FALSE, KEY_F(15), KEY_F(27), KEY_F(39), KEY_F(51)},
{SDLK_BACKSPACE,FALSE, 0x08, 0x08, CTL_BKSP, ALT_BKSP},
{SDLK_TAB, FALSE, 0x09, KEY_BTAB, CTL_TAB, ALT_TAB},
{SDLK_PRINT, FALSE, KEY_PRINT, KEY_SPRINT, KEY_PRINT, KEY_PRINT},
{SDLK_PAUSE, FALSE, KEY_SUSPEND, KEY_SSUSPEND, KEY_SUSPEND, KEY_SUSPEND},
{SDLK_CLEAR, FALSE, KEY_CLEAR, KEY_CLEAR, KEY_CLEAR, KEY_CLEAR},
{SDLK_BREAK, FALSE, KEY_BREAK, KEY_BREAK, KEY_BREAK, KEY_BREAK},
{SDLK_HELP, FALSE, KEY_HELP, KEY_SHELP, KEY_LHELP, KEY_HELP},
{SDLK_MENU, FALSE, KEY_OPTIONS, KEY_SOPTIONS, KEY_OPTIONS, KEY_OPTIONS},
{SDLK_ESCAPE, FALSE, 0x1B, 0x1B, 0x1B, ALT_ESC},
{SDLK_KP_ENTER,TRUE, PADENTER, PADENTER, CTL_PADENTER,ALT_PADENTER},
{SDLK_KP_PLUS, TRUE, PADPLUS, '+', CTL_PADPLUS, ALT_PADPLUS},
{SDLK_KP_MINUS,TRUE, PADMINUS, '-', CTL_PADMINUS,ALT_PADMINUS},
{SDLK_KP_MULTIPLY,TRUE,PADSTAR, '*', CTL_PADSTAR, ALT_PADSTAR},
{SDLK_KP_DIVIDE,TRUE, PADSLASH, '/', CTL_PADSLASH,ALT_PADSLASH},
{SDLK_KP_PERIOD,TRUE, PADSTOP, '.', CTL_PADSTOP, ALT_PADSTOP},
{SDLK_KP0, TRUE, PAD0, '0', CTL_PAD0, ALT_PAD0},
{SDLK_KP1, TRUE, KEY_C1, '1', CTL_PAD1, ALT_PAD1},
{SDLK_KP2, TRUE, KEY_C2, '2', CTL_PAD2, ALT_PAD2},
{SDLK_KP3, TRUE, KEY_C3, '3', CTL_PAD3, ALT_PAD3},
{SDLK_KP4, TRUE, KEY_B1, '4', CTL_PAD4, ALT_PAD4},
{SDLK_KP5, TRUE, KEY_B2, '5', CTL_PAD5, ALT_PAD5},
{SDLK_KP6, TRUE, KEY_B3, '6', CTL_PAD6, ALT_PAD6},
{SDLK_KP7, TRUE, KEY_A1, '7', CTL_PAD7, ALT_PAD7},
{SDLK_KP8, TRUE, KEY_A2, '8', CTL_PAD8, ALT_PAD8},
{SDLK_KP9, TRUE, KEY_A3, '9', CTL_PAD9, ALT_PAD9},
{0, 0, 0, 0, 0, 0}
};
unsigned long PDC_get_input_fd(void)
{
PDC_LOG(("PDC_get_input_fd() - called\n"));
return 0L; /* test this */
}
void PDC_set_keyboard_binary(bool on)
{
PDC_LOG(("PDC_set_keyboard_binary() - called\n"));
}
/* check if a key or mouse event is waiting */
bool PDC_check_key(void)
{
Uint32 current = SDL_GetTicks();
int haveevent = SDL_PollEvent(&event);
/* if we have an event, or 30 ms have passed without a screen
update, or the timer has wrapped, update now */
if (haveevent ||
current < pdc_lastupdate || ((current - pdc_lastupdate) > 30))
PDC_update_rects();
return haveevent;
}
static int _process_key_event(void)
{
int i, key = 0;
pdc_key_modifiers = 0L;
SP->key_code = FALSE;
if (event.type == SDL_KEYUP)
{
if (SP->return_key_modifiers && event.key.keysym.sym == oldkey)
{
switch (oldkey)
{
case SDLK_RSHIFT:
return KEY_SHIFT_R;
case SDLK_LSHIFT:
return KEY_SHIFT_L;
case SDLK_RCTRL:
return KEY_CONTROL_R;
case SDLK_LCTRL:
return KEY_CONTROL_L;
case SDLK_RALT:
return KEY_ALT_R;
case SDLK_LALT:
return KEY_ALT_L;
default:
break;
}
}
return -1;
}
oldkey = event.key.keysym.sym;
if (SP->save_key_modifiers)
{
if (event.key.keysym.mod & KMOD_NUM)
pdc_key_modifiers |= PDC_KEY_MODIFIER_NUMLOCK;
if (event.key.keysym.mod & KMOD_SHIFT)
pdc_key_modifiers |= PDC_KEY_MODIFIER_SHIFT;
if (event.key.keysym.mod & KMOD_CTRL)
pdc_key_modifiers |= PDC_KEY_MODIFIER_CONTROL;
if (event.key.keysym.mod & KMOD_ALT)
pdc_key_modifiers |= PDC_KEY_MODIFIER_ALT;
}
for (i = 0; key_table[i].keycode; i++)
{
if (key_table[i].keycode == event.key.keysym.sym)
{
if ((event.key.keysym.mod & KMOD_SHIFT) ||
(key_table[i].numkeypad && (event.key.keysym.mod & KMOD_NUM)))
{
key = key_table[i].shifted;
}
else if (event.key.keysym.mod & KMOD_CTRL)
{
key = key_table[i].control;
}
else if (event.key.keysym.mod & KMOD_ALT)
{
key = key_table[i].alt;
}
/* To get here, we ignore all other modifiers */
else
key = key_table[i].normal;
SP->key_code = (key > 0x100);
break;
}
}
if (!key)
{
key = event.key.keysym.unicode;
if (key > 0x7f)
key = 0;
}
/* Handle ALT letters and numbers */
if (event.key.keysym.mod & KMOD_ALT)
{
if (key >= 'A' && key <= 'Z')
{
key += ALT_A - 'A';
SP->key_code = TRUE;
}
if (key >= 'a' && key <= 'z')
{
key += ALT_A - 'a';
SP->key_code = TRUE;
}
if (key >= '0' && key <= '9')
{
key += ALT_0 - '0';
SP->key_code = TRUE;
}
}
return key ? key : -1;
}
static int _process_mouse_event(void)
{
SDLMod keymods;
short shift_flags = 0;
memset(&pdc_mouse_status, 0, sizeof(MOUSE_STATUS));
keymods = SDL_GetModState();
if (keymods & KMOD_SHIFT)
shift_flags |= BUTTON_SHIFT;
if (keymods & KMOD_CTRL)
shift_flags |= BUTTON_CONTROL;
if (keymods & KMOD_ALT)
shift_flags |= BUTTON_ALT;
if (event.type == SDL_MOUSEMOTION)
{
int i;
pdc_mouse_status.x = event.motion.x / pdc_fwidth;
pdc_mouse_status.y = event.motion.y / pdc_fheight;
if (!event.motion.state ||
(pdc_mouse_status.x == old_mouse_status.x &&
pdc_mouse_status.y == old_mouse_status.y))
return -1;
pdc_mouse_status.changes = PDC_MOUSE_MOVED;
for (i = 0; i < 3; i++)
{
if (event.motion.state & SDL_BUTTON(i + 1))
{
pdc_mouse_status.button[i] = BUTTON_MOVED | shift_flags;
pdc_mouse_status.changes |= (1 << i);
}
}
}
else
{
short action = (event.button.state == SDL_PRESSED) ?
BUTTON_PRESSED : BUTTON_RELEASED;
Uint8 btn = event.button.button;
/* handle scroll wheel */
if ((btn == 4 || btn == 5) && action == BUTTON_RELEASED)
{
pdc_mouse_status.x = pdc_mouse_status.y = -1;
pdc_mouse_status.changes = (btn == 5) ?
PDC_MOUSE_WHEEL_DOWN : PDC_MOUSE_WHEEL_UP;
return KEY_MOUSE;
}
if (btn < 1 || btn > 3)
return -1;
/* check for a click -- a press followed immediately by a release */
if (action == BUTTON_PRESSED && SP->mouse_wait)
{
SDL_Event rel;
napms(SP->mouse_wait);
if (SDL_PollEvent(&rel))
{
if (rel.type == SDL_MOUSEBUTTONUP && rel.button.button == btn)
action = BUTTON_CLICKED;
else
SDL_PushEvent(&rel);
}
}
pdc_mouse_status.x = event.button.x / pdc_fwidth;
pdc_mouse_status.y = event.button.y / pdc_fheight;
btn--;
pdc_mouse_status.button[btn] = action | shift_flags;
pdc_mouse_status.changes = (1 << btn);
}
old_mouse_status = pdc_mouse_status;
return KEY_MOUSE;
}
/* return the next available key or mouse event */
int PDC_get_key(void)
{
switch (event.type)
{
case SDL_QUIT:
exit(1);
case SDL_VIDEORESIZE:
if (pdc_own_screen &&
(event.resize.h / pdc_fheight != LINES ||
event.resize.w / pdc_fwidth != COLS))
{
pdc_sheight = event.resize.h;
pdc_swidth = event.resize.w;
if (!SP->resized)
{
SP->resized = TRUE;
return KEY_RESIZE;
}
}
break;
case SDL_MOUSEMOTION:
SDL_ShowCursor(SDL_ENABLE);
case SDL_MOUSEBUTTONUP:
case SDL_MOUSEBUTTONDOWN:
oldkey = SDLK_SPACE;
if (SP->_trap_mbe)
return _process_mouse_event();
break;
case SDL_KEYUP:
case SDL_KEYDOWN:
PDC_mouse_set();
return _process_key_event();
}
return -1;
}
/* discard any pending keyboard or mouse input -- this is the core
routine for flushinp() */
void PDC_flushinp(void)
{
PDC_LOG(("PDC_flushinp() - called\n"));
while (PDC_check_key());
}
int PDC_mouse_set(void)
{
SDL_ShowCursor(SP->_trap_mbe ? SDL_ENABLE : SDL_DISABLE);
return OK;
}
int PDC_modifiers_set(void)
{
return OK;
}
|
