SDL_dibevents.c
1
2
/*
SDL - Simple DirectMedia Layer
3
Copyright (C) 1997-2006 Sam Lantinga
4
5
This library is free software; you can redistribute it and/or
6
modify it under the terms of the GNU Lesser General Public
7
License as published by the Free Software Foundation; either
8
version 2.1 of the License, or (at your option) any later version.
9
10
11
12
This library 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
13
Lesser General Public License for more details.
15
16
17
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18
19
Sam Lantinga
20
slouken@libsdl.org
21
22
*/
23
#include "SDL_windows.h"
24
25
26
27
#include "SDL_events.h"
#include "SDL_error.h"
#include "SDL_syswm.h"
28
29
#include "SDL_stdlib.h"
#include "SDL_string.h"
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
#include "SDL_sysevents.h"
#include "SDL_events_c.h"
#include "SDL_lowvideo.h"
#include "SDL_dibvideo.h"
#include "SDL_vkeys.h"
#ifndef WM_APP
#define WM_APP 0x8000
#endif
#ifdef _WIN32_WCE
#define NO_GETKEYBOARDSTATE
#endif
/* The translation table from a Microsoft VK keysym to a SDL keysym */
static SDLKey VK_keymap[SDLK_LAST];
static SDL_keysym *TranslateKey(UINT vkey, UINT scancode, SDL_keysym *keysym, int pressed);
/* Masks for processing the windows KEYDOWN and KEYUP messages */
#define REPEATED_KEYMASK (1<<30)
#define EXTENDED_KEYMASK (1<<24)
52
53
/* DJM: If the user setup the window for us, we want to save his window proc,
and give him a chance to handle some messages. */
54
55
56
57
58
59
#ifdef STRICT
#define WNDPROCTYPE WNDPROC
#else
#define WNDPROCTYPE FARPROC
#endif
static WNDPROCTYPE userWindowProc = NULL;
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
#ifdef _WIN32_WCE
WPARAM rotateKey(WPARAM key,SDL_ScreenOrientation direction)
{
if (direction != SDL_ORIENTATION_LEFT)
return key;
switch (key) {
case 0x26: /* up */
return 0x27;
case 0x27: /* right */
return 0x28;
case 0x28: /* down */
return 0x25;
case 0x25: /* left */
return 0x26;
}
return key;
}
#endif
86
87
88
89
90
91
92
93
94
95
96
/* The main Win32 event handler */
LONG
DIB_HandleMessage(_THIS, HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
extern int posted;
switch (msg) {
case WM_SYSKEYDOWN:
case WM_KEYDOWN: {
SDL_keysym keysym;
97
98
99
100
101
102
103
104
105
#ifdef _WIN32_WCE
// Drop GAPI artefacts
if (wParam == 0x84 || wParam == 0x5B)
return 0;
// Rotate key if necessary
if (this->hidden->orientation != SDL_ORIENTATION_UP)
wParam = rotateKey(wParam, this->hidden->orientation);
#endif
106
107
108
109
110
111
112
113
114
115
116
117
118
/* Ignore repeated keys */
if ( lParam&REPEATED_KEYMASK ) {
return(0);
}
switch (wParam) {
case VK_CONTROL:
if ( lParam&EXTENDED_KEYMASK )
wParam = VK_RCONTROL;
else
wParam = VK_LCONTROL;
break;
case VK_SHIFT:
/* EXTENDED trick doesn't work here */
119
120
121
{
Uint8 *state = SDL_GetKeyState(NULL);
if (state[SDLK_LSHIFT] == SDL_RELEASED && (GetKeyState(VK_LSHIFT) & 0x8000)) {
122
wParam = VK_LSHIFT;
123
} else if (state[SDLK_RSHIFT] == SDL_RELEASED && (GetKeyState(VK_RSHIFT) & 0x8000)) {
124
125
wParam = VK_RSHIFT;
} else {
126
127
128
/* Probably a key repeat */
return(0);
}
130
131
132
133
134
135
136
137
break;
case VK_MENU:
if ( lParam&EXTENDED_KEYMASK )
wParam = VK_RMENU;
else
wParam = VK_LMENU;
break;
}
138
139
140
#ifdef NO_GETKEYBOARDSTATE
/* this is the workaround for the missing ToAscii() and ToUnicode() in CE (not necessary at KEYUP!) */
if ( SDL_TranslateUNICODE ) {
141
142
143
144
145
146
147
148
MSG m;
m.hwnd = hwnd;
m.message = msg;
m.wParam = wParam;
m.lParam = lParam;
m.time = 0;
if ( TranslateMessage(&m) && PeekMessage(&m, hwnd, 0, WM_USER, PM_NOREMOVE) && (m.message == WM_CHAR) ) {
149
150
151
152
153
GetMessage(&m, hwnd, 0, WM_USER);
wParam = m.wParam;
}
}
#endif /* NO_GETKEYBOARDSTATE */
154
155
156
157
158
159
160
161
162
posted = SDL_PrivateKeyboard(SDL_PRESSED,
TranslateKey(wParam,HIWORD(lParam),&keysym,1));
}
return(0);
case WM_SYSKEYUP:
case WM_KEYUP: {
SDL_keysym keysym;
163
164
165
166
167
168
169
170
171
172
#ifdef _WIN32_WCE
// Drop GAPI artefacts
if (wParam == 0x84 || wParam == 0x5B)
return 0;
// Rotate key if necessary
if (this->hidden->orientation != SDL_ORIENTATION_UP)
wParam = rotateKey(wParam, this->hidden->orientation);
#endif
173
174
175
176
177
178
179
180
181
switch (wParam) {
case VK_CONTROL:
if ( lParam&EXTENDED_KEYMASK )
wParam = VK_RCONTROL;
else
wParam = VK_LCONTROL;
break;
case VK_SHIFT:
/* EXTENDED trick doesn't work here */
182
183
184
{
Uint8 *state = SDL_GetKeyState(NULL);
if (state[SDLK_LSHIFT] == SDL_PRESSED && !(GetKeyState(VK_LSHIFT) & 0x8000)) {
185
wParam = VK_LSHIFT;
186
} else if (state[SDLK_RSHIFT] == SDL_PRESSED && !(GetKeyState(VK_RSHIFT) & 0x8000)) {
187
188
wParam = VK_RSHIFT;
} else {
189
190
191
/* Probably a key repeat */
return(0);
}
193
194
195
196
197
198
199
200
201
202
203
204
205
break;
case VK_MENU:
if ( lParam&EXTENDED_KEYMASK )
wParam = VK_RMENU;
else
wParam = VK_LMENU;
break;
}
posted = SDL_PrivateKeyboard(SDL_RELEASED,
TranslateKey(wParam,HIWORD(lParam),&keysym,0));
}
return(0);
206
207
208
209
210
211
212
213
214
#if defined(SC_SCREENSAVE) && defined(SC_MONITORPOWER)
case WM_SYSCOMMAND: {
if ((wParam&0xFFF0)==SC_SCREENSAVE ||
(wParam&0xFFF0)==SC_MONITORPOWER)
return(0);
}
/* Fall through to default processing */
#endif /* SC_SCREENSAVE && SC_MONITORPOWER */
215
216
217
218
219
220
221
222
223
224
225
default: {
/* Only post the event if we're watching for it */
if ( SDL_ProcessEvents[SDL_SYSWMEVENT] == SDL_ENABLE ) {
SDL_SysWMmsg wmmsg;
SDL_VERSION(&wmmsg.version);
wmmsg.hwnd = hwnd;
wmmsg.msg = msg;
wmmsg.wParam = wParam;
wmmsg.lParam = lParam;
posted = SDL_PrivateSysWMEvent(&wmmsg);
226
227
228
229
230
231
/* DJM: If the user isn't watching for private
messages in her SDL event loop, then pass it
along to any win32 specific window proc.
*/
} else if (userWindowProc) {
232
return CallWindowProc(userWindowProc, hwnd, msg, wParam, lParam);
233
234
235
236
237
238
239
240
241
242
243
}
}
break;
}
return(DefWindowProc(hwnd, msg, wParam, lParam));
}
void DIB_PumpEvents(_THIS)
{
MSG msg;
244
245
while ( PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE) ) {
if ( GetMessage(&msg, NULL, 0, 0) > 0 ) {
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
DispatchMessage(&msg);
}
}
}
void DIB_InitOSKeymap(_THIS)
{
int i;
/* Map the VK keysyms */
for ( i=0; i<SDL_TABLESIZE(VK_keymap); ++i )
VK_keymap[i] = SDLK_UNKNOWN;
VK_keymap[VK_BACK] = SDLK_BACKSPACE;
VK_keymap[VK_TAB] = SDLK_TAB;
VK_keymap[VK_CLEAR] = SDLK_CLEAR;
VK_keymap[VK_RETURN] = SDLK_RETURN;
VK_keymap[VK_PAUSE] = SDLK_PAUSE;
VK_keymap[VK_ESCAPE] = SDLK_ESCAPE;
VK_keymap[VK_SPACE] = SDLK_SPACE;
VK_keymap[VK_APOSTROPHE] = SDLK_QUOTE;
VK_keymap[VK_COMMA] = SDLK_COMMA;
VK_keymap[VK_MINUS] = SDLK_MINUS;
VK_keymap[VK_PERIOD] = SDLK_PERIOD;
VK_keymap[VK_SLASH] = SDLK_SLASH;
VK_keymap[VK_0] = SDLK_0;
VK_keymap[VK_1] = SDLK_1;
VK_keymap[VK_2] = SDLK_2;
VK_keymap[VK_3] = SDLK_3;
VK_keymap[VK_4] = SDLK_4;
VK_keymap[VK_5] = SDLK_5;
VK_keymap[VK_6] = SDLK_6;
VK_keymap[VK_7] = SDLK_7;
VK_keymap[VK_8] = SDLK_8;
VK_keymap[VK_9] = SDLK_9;
VK_keymap[VK_SEMICOLON] = SDLK_SEMICOLON;
VK_keymap[VK_EQUALS] = SDLK_EQUALS;
VK_keymap[VK_LBRACKET] = SDLK_LEFTBRACKET;
VK_keymap[VK_BACKSLASH] = SDLK_BACKSLASH;
285
VK_keymap[VK_OEM_102] = SDLK_LESS;
286
287
VK_keymap[VK_RBRACKET] = SDLK_RIGHTBRACKET;
VK_keymap[VK_GRAVE] = SDLK_BACKQUOTE;
288
VK_keymap[VK_BACKTICK] = SDLK_BACKQUOTE;
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
VK_keymap[VK_A] = SDLK_a;
VK_keymap[VK_B] = SDLK_b;
VK_keymap[VK_C] = SDLK_c;
VK_keymap[VK_D] = SDLK_d;
VK_keymap[VK_E] = SDLK_e;
VK_keymap[VK_F] = SDLK_f;
VK_keymap[VK_G] = SDLK_g;
VK_keymap[VK_H] = SDLK_h;
VK_keymap[VK_I] = SDLK_i;
VK_keymap[VK_J] = SDLK_j;
VK_keymap[VK_K] = SDLK_k;
VK_keymap[VK_L] = SDLK_l;
VK_keymap[VK_M] = SDLK_m;
VK_keymap[VK_N] = SDLK_n;
VK_keymap[VK_O] = SDLK_o;
VK_keymap[VK_P] = SDLK_p;
VK_keymap[VK_Q] = SDLK_q;
VK_keymap[VK_R] = SDLK_r;
VK_keymap[VK_S] = SDLK_s;
VK_keymap[VK_T] = SDLK_t;
VK_keymap[VK_U] = SDLK_u;
VK_keymap[VK_V] = SDLK_v;
VK_keymap[VK_W] = SDLK_w;
VK_keymap[VK_X] = SDLK_x;
VK_keymap[VK_Y] = SDLK_y;
VK_keymap[VK_Z] = SDLK_z;
VK_keymap[VK_DELETE] = SDLK_DELETE;
VK_keymap[VK_NUMPAD0] = SDLK_KP0;
VK_keymap[VK_NUMPAD1] = SDLK_KP1;
VK_keymap[VK_NUMPAD2] = SDLK_KP2;
VK_keymap[VK_NUMPAD3] = SDLK_KP3;
VK_keymap[VK_NUMPAD4] = SDLK_KP4;
VK_keymap[VK_NUMPAD5] = SDLK_KP5;
VK_keymap[VK_NUMPAD6] = SDLK_KP6;
VK_keymap[VK_NUMPAD7] = SDLK_KP7;
VK_keymap[VK_NUMPAD8] = SDLK_KP8;
VK_keymap[VK_NUMPAD9] = SDLK_KP9;
VK_keymap[VK_DECIMAL] = SDLK_KP_PERIOD;
VK_keymap[VK_DIVIDE] = SDLK_KP_DIVIDE;
VK_keymap[VK_MULTIPLY] = SDLK_KP_MULTIPLY;
VK_keymap[VK_SUBTRACT] = SDLK_KP_MINUS;
VK_keymap[VK_ADD] = SDLK_KP_PLUS;
VK_keymap[VK_UP] = SDLK_UP;
VK_keymap[VK_DOWN] = SDLK_DOWN;
VK_keymap[VK_RIGHT] = SDLK_RIGHT;
VK_keymap[VK_LEFT] = SDLK_LEFT;
VK_keymap[VK_INSERT] = SDLK_INSERT;
VK_keymap[VK_HOME] = SDLK_HOME;
VK_keymap[VK_END] = SDLK_END;
VK_keymap[VK_PRIOR] = SDLK_PAGEUP;
VK_keymap[VK_NEXT] = SDLK_PAGEDOWN;
VK_keymap[VK_F1] = SDLK_F1;
VK_keymap[VK_F2] = SDLK_F2;
VK_keymap[VK_F3] = SDLK_F3;
VK_keymap[VK_F4] = SDLK_F4;
VK_keymap[VK_F5] = SDLK_F5;
VK_keymap[VK_F6] = SDLK_F6;
VK_keymap[VK_F7] = SDLK_F7;
VK_keymap[VK_F8] = SDLK_F8;
VK_keymap[VK_F9] = SDLK_F9;
VK_keymap[VK_F10] = SDLK_F10;
VK_keymap[VK_F11] = SDLK_F11;
VK_keymap[VK_F12] = SDLK_F12;
VK_keymap[VK_F13] = SDLK_F13;
VK_keymap[VK_F14] = SDLK_F14;
VK_keymap[VK_F15] = SDLK_F15;
VK_keymap[VK_NUMLOCK] = SDLK_NUMLOCK;
VK_keymap[VK_CAPITAL] = SDLK_CAPSLOCK;
VK_keymap[VK_SCROLL] = SDLK_SCROLLOCK;
VK_keymap[VK_RSHIFT] = SDLK_RSHIFT;
VK_keymap[VK_LSHIFT] = SDLK_LSHIFT;
VK_keymap[VK_RCONTROL] = SDLK_RCTRL;
VK_keymap[VK_LCONTROL] = SDLK_LCTRL;
VK_keymap[VK_RMENU] = SDLK_RALT;
VK_keymap[VK_LMENU] = SDLK_LALT;
VK_keymap[VK_RWIN] = SDLK_RSUPER;
VK_keymap[VK_LWIN] = SDLK_LSUPER;
VK_keymap[VK_HELP] = SDLK_HELP;
#ifdef VK_PRINT
VK_keymap[VK_PRINT] = SDLK_PRINT;
#endif
VK_keymap[VK_SNAPSHOT] = SDLK_PRINT;
VK_keymap[VK_CANCEL] = SDLK_BREAK;
VK_keymap[VK_APPS] = SDLK_MENU;
}
static SDL_keysym *TranslateKey(UINT vkey, UINT scancode, SDL_keysym *keysym, int pressed)
{
/* Set the keysym information */
keysym->scancode = (unsigned char) scancode;
keysym->sym = VK_keymap[vkey];
keysym->mod = KMOD_NONE;
keysym->unicode = 0;
387
if ( pressed && SDL_TranslateUNICODE ) {
388
389
390
391
#ifdef NO_GETKEYBOARDSTATE
/* Uh oh, better hope the vkey is close enough.. */
keysym->unicode = vkey;
#else
392
393
BYTE keystate[256];
Uint16 wchars[2];
394
395
GetKeyboardState(keystate);
396
397
398
if (SDL_ToUnicode(vkey, scancode, keystate, wchars, sizeof(wchars)/sizeof(wchars[0]), 0) == 1)
{
keysym->unicode = wchars[0];
399
400
401
402
403
404
405
406
}
#endif /* NO_GETKEYBOARDSTATE */
}
return(keysym);
}
int DIB_CreateWindow(_THIS)
{
407
char *windowid = getenv("SDL_WINDOWID");
409
SDL_RegisterApp(NULL, 0, 0);
411
412
SDL_windowid = (windowid != NULL);
if ( SDL_windowid ) {
413
#if defined(_WIN32_WCE) && (_WIN32_WCE < 300)
414
415
416
417
418
/* wince 2.1 does not have strtol */
wchar_t *windowid_t = malloc((strlen(windowid) + 1) * sizeof(wchar_t));
MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, windowid, -1, windowid_t, strlen(windowid) + 1);
SDL_Window = (HWND)wcstol(windowid_t, NULL, 0);
free(windowid_t);
420
SDL_Window = (HWND)strtol(windowid, NULL, 0);
422
423
424
425
426
427
428
429
if ( SDL_Window == NULL ) {
SDL_SetError("Couldn't get user specified window");
return(-1);
}
/* DJM: we want all event's for the user specified
window to be handled by SDL.
*/
430
userWindowProc = (WNDPROCTYPE)GetWindowLong(SDL_Window, GWL_WNDPROC);
431
SetWindowLong(SDL_Window, GWL_WNDPROC, (LONG)WinMessage);
432
433
434
} else {
SDL_Window = CreateWindow(SDL_Appname, SDL_Appname,
(WS_OVERLAPPED|WS_CAPTION|WS_SYSMENU|WS_MINIMIZEBOX),
435
CW_USEDEFAULT, CW_USEDEFAULT, 0, 0, NULL, NULL, SDL_Instance, NULL);
436
437
438
439
440
441
442
443
444
445
446
if ( SDL_Window == NULL ) {
SDL_SetError("Couldn't create window");
return(-1);
}
ShowWindow(SDL_Window, SW_HIDE);
}
return(0);
}
void DIB_DestroyWindow(_THIS)
{
447
448
449
if ( SDL_windowid ) {
SetWindowLong(SDL_Window, GWL_WNDPROC, (LONG)userWindowProc);
} else {
450
451
DestroyWindow(SDL_Window);
}
452
SDL_UnregisterApp();
453
}