This repository has been archived by the owner on Feb 11, 2021. It is now read-only.
/
SDL_win32events.c
689 lines (614 loc) · 21.4 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2006 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
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
Lesser General Public License for more details.
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
Sam Lantinga
slouken@libsdl.org
*/
22
23
24
25
26
27
#if (_WIN32_WINNT < 0x0501)
#undef _WIN32_WINNT
#define _WIN32_WINNT 0x0501
#endif
28
29
30
31
32
33
34
#include "SDL_config.h"
#include "SDL_win32video.h"
#include "SDL_syswm.h"
#include "SDL_vkeys.h"
#include "../../events/SDL_events_c.h"
35
36
37
38
39
#include <wintab.h>
#define PACKETDATA ( PK_X | PK_Y | PK_BUTTONS | PK_NORMAL_PRESSURE | PK_CURSOR)
#define PACKETMODE 0
#include <pktdef.h>
40
41
/*#define WMMSG_DEBUG*/
#ifdef WMMSG_DEBUG
42
#include <stdio.h>
43
44
45
46
#include "wmmsg.h"
#endif
/* Masks for processing the windows KEYDOWN and KEYUP messages */
47
48
#define REPEATED_KEYMASK (1<<30)
#define EXTENDED_KEYMASK (1<<24)
49
50
#define VK_ENTER 10 /* Keypad Enter ... no VKEY defined? */
51
52
53
54
55
56
57
58
59
60
61
/* Make sure XBUTTON stuff is defined that isn't in older Platform SDKs... */
#ifndef WM_XBUTTONDOWN
#define WM_XBUTTONDOWN 0x020B
#endif
#ifndef WM_XBUTTONUP
#define WM_XBUTTONUP 0x020C
#endif
#ifndef GET_XBUTTON_WPARAM
#define GET_XBUTTON_WPARAM(w) (HIWORD(w))
#endif
62
63
64
65
66
67
68
extern HCTX *g_hCtx;
extern HANDLE *mice;
extern int total_mice;
extern int tablet;
int pressure = 0; /* the pressure reported by the tablet */
69
70
71
static WPARAM
RemapVKEY(WPARAM wParam, LPARAM lParam)
{
72
int i;
73
BYTE scancode = (BYTE) ((lParam >> 16) & 0xFF);
74
75
76
77
78
/* Windows remaps alphabetic keys based on current layout.
We try to provide USB scancodes, so undo this mapping.
*/
if (wParam >= 'A' && wParam <= 'Z') {
79
80
81
if (scancode != alpha_scancodes[wParam - 'A']) {
for (i = 0; i < SDL_arraysize(alpha_scancodes); ++i) {
if (scancode == alpha_scancodes[i]) {
82
83
84
85
86
87
wParam = 'A' + i;
break;
}
}
}
}
88
89
90
91
/* Keypad keys are a little trickier, we always scan for them. */
for (i = 0; i < SDL_arraysize(keypad_scancodes); ++i) {
if (scancode == keypad_scancodes[i]) {
92
wParam = VK_NUMPAD0 + i;
93
94
95
96
break;
}
}
97
98
99
return wParam;
}
100
101
102
103
LRESULT CALLBACK
WIN_WindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
SDL_WindowData *data;
104
105
RAWINPUT *raw;
PACKET packet;
106
107
108
109
110
111
112
113
114
115
116
117
118
/* Send a SDL_SYSWMEVENT if the application wants them */
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;
SDL_SendSysWMEvent(&wmmsg);
}
119
120
121
122
123
124
/* Get the window data for the window */
data = (SDL_WindowData *) GetProp(hwnd, TEXT("SDL_WindowData"));
if (!data) {
return CallWindowProc(DefWindowProc, hwnd, msg, wParam, lParam);
}
#ifdef WMMSG_DEBUG
125
126
127
128
129
130
131
132
133
134
{
FILE *log = fopen("wmmsg.txt", "a");
fprintf(log, "Received windows message: %p ", hwnd);
if (msg > MAX_WMMSG) {
fprintf(log, "%d", msg);
} else {
fprintf(log, "%s", wmtab[msg]);
}
fprintf(log, " -- 0x%X, 0x%X\n", wParam, lParam);
fclose(log);
135
}
136
137
138
139
140
#endif
switch (msg) {
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
case WT_PACKET:
{
/* if we receive such data we need to update the pressure */
if (WTPacket((HCTX) lParam, wParam, &packet)) {
SDL_ChangeEnd(tablet, (int) packet.pkCursor);
pressure = (int) packet.pkNormalPressure;
}
}
break;
case WT_PROXIMITY:
{
/* checking where the proximity message showed up */
int h_context = LOWORD(lParam);
LPPOINT point;
GetCursorPos(&point);
ScreenToClient(hwnd, &point);
/* are we in proximity or out of proximity */
if (h_context == 0) {
SDL_SendProximity(tablet, (int) (&point->x),
(int) (&point->y), SDL_PROXIMITYOUT);
} else {
SDL_SendProximity(tablet, (int) (&point->x),
(int) (&point->y), SDL_PROXIMITYIN);
}
}
break;
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
case WM_SHOWWINDOW:
{
if (wParam) {
SDL_SendWindowEvent(data->windowID, SDL_WINDOWEVENT_SHOWN, 0,
0);
} else {
SDL_SendWindowEvent(data->windowID, SDL_WINDOWEVENT_HIDDEN, 0,
0);
}
}
break;
case WM_ACTIVATE:
{
int index;
SDL_Keyboard *keyboard;
BOOL minimized;
minimized = HIWORD(wParam);
index = data->videodata->keyboard;
keyboard = SDL_GetKeyboard(index);
if (!minimized && (LOWORD(wParam) != WA_INACTIVE)) {
SDL_SendWindowEvent(data->windowID, SDL_WINDOWEVENT_SHOWN,
0, 0);
SDL_SendWindowEvent(data->windowID,
SDL_WINDOWEVENT_RESTORED, 0, 0);
if (IsZoomed(hwnd)) {
SDL_SendWindowEvent(data->windowID,
SDL_WINDOWEVENT_MAXIMIZED, 0, 0);
}
if (keyboard && keyboard->focus != data->windowID) {
SDL_SetKeyboardFocus(index, data->windowID);
}
/* FIXME: Update keyboard state */
} else {
if (keyboard && keyboard->focus == data->windowID) {
SDL_SetKeyboardFocus(index, 0);
}
if (minimized) {
SDL_SendWindowEvent(data->windowID,
SDL_WINDOWEVENT_MINIMIZED, 0, 0);
}
}
}
214
return (0);
215
216
case WM_INPUT: /* mouse events */
217
{
218
219
220
LPBYTE lpb;
int w, h;
const RAWINPUTHEADER *header;
221
int index;
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
int i;
int size = 0;
const RAWMOUSE *raw_mouse = NULL;
LPPOINT point;
USHORT flags;
/* we're collecting data from the mouse */
GetRawInputData((HRAWINPUT) lParam, RID_INPUT, NULL, &size,
sizeof(RAWINPUTHEADER));
lpb = SDL_malloc(size * sizeof(LPBYTE));
GetRawInputData((HRAWINPUT) lParam, RID_INPUT, lpb, &size,
sizeof(RAWINPUTHEADER));
raw = (RAWINPUT *) lpb;
header = &raw->header;
flags = raw->data.mouse.usButtonFlags;
/* we're checking which mouse generated the event */
for (i = 0; i < total_mice; ++i) {
if (mice[i] == header->hDevice) {
index = i;
break;
}
244
}
245
246
247
248
GetCursorPos(&point);
ScreenToClient(hwnd, &point);
SDL_GetWindowSize(data->windowID, &w, &h);
SDL_UpdateCoordinates(w, h); /* we're updating the current window size */
249
250
251
252
253
/* if the message was sent by a tablet we have to send also pressure */
if (i == tablet) {
SDL_SendMouseMotion(index, 0, (int) (&point->x),
(int) (&point->y), pressure);
254
} else {
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
SDL_SendMouseMotion(index, 0, (int) (&point->x),
(int) (&point->y), 0);
}
/* we're sending mouse buttons messages to check up if sth changed */
if (flags & RI_MOUSE_BUTTON_1_DOWN) {
SDL_SendMouseButton(index, SDL_PRESSED, SDL_BUTTON_LEFT);
} else if (flags & RI_MOUSE_BUTTON_1_UP) {
SDL_SendMouseButton(index, SDL_RELEASED, SDL_BUTTON_LEFT);
}
if (flags & RI_MOUSE_BUTTON_2_DOWN) {
SDL_SendMouseButton(index, SDL_PRESSED, SDL_BUTTON_MIDDLE);
} else if (flags & RI_MOUSE_BUTTON_2_UP) {
SDL_SendMouseButton(index, SDL_RELEASED, SDL_BUTTON_MIDDLE);
}
if (flags & RI_MOUSE_BUTTON_3_DOWN) {
SDL_SendMouseButton(index, SDL_PRESSED, SDL_BUTTON_RIGHT);
} else if (flags & RI_MOUSE_BUTTON_3_UP) {
SDL_SendMouseButton(index, SDL_RELEASED, SDL_BUTTON_RIGHT);
}
274
275
276
277
278
279
280
281
282
283
if (flags & RI_MOUSE_BUTTON_4_DOWN) {
SDL_SendMouseButton(index, SDL_PRESSED, SDL_BUTTON_X1);
} else if (flags & RI_MOUSE_BUTTON_4_UP) {
SDL_SendMouseButton(index, SDL_RELEASED, SDL_BUTTON_X1);
}
if (flags & RI_MOUSE_BUTTON_5_DOWN) {
SDL_SendMouseButton(index, SDL_PRESSED, SDL_BUTTON_X2);
} else if (flags & RI_MOUSE_BUTTON_5_UP) {
SDL_SendMouseButton(index, SDL_RELEASED, SDL_BUTTON_X2);
}
284
285
286
287
288
if (flags & RI_MOUSE_WHEEL) {
if (raw->data.mouse.usButtonData != 0) {
SDL_SendMouseWheel(index, 0,
raw->data.mouse.usButtonData);
}
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
}
}
return (0);
case WM_MOUSELEAVE:
{
int index;
SDL_Mouse *mouse;
index = data->videodata->mouse;
mouse = SDL_GetMouse(index);
if (mouse->focus == data->windowID) {
SDL_SetMouseFocus(index, 0);
}
}
return (0);
case WM_SYSKEYDOWN:
case WM_KEYDOWN:
{
int index;
/* Ignore repeated keys */
if (lParam & REPEATED_KEYMASK) {
return (0);
}
index = data->videodata->keyboard;
318
wParam = RemapVKEY(wParam, lParam);
319
320
321
322
323
324
325
326
327
328
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 */
{
329
330
Uint8 *state = SDL_GetKeyboardState(NULL);
if (state[SDL_SCANCODE_LSHIFT] == SDL_RELEASED
331
332
&& (GetKeyState(VK_LSHIFT) & 0x8000)) {
wParam = VK_LSHIFT;
333
} else if (state[SDL_SCANCODE_RSHIFT] == SDL_RELEASED
334
335
336
337
338
339
340
341
342
343
344
345
346
347
&& (GetKeyState(VK_RSHIFT) & 0x8000)) {
wParam = VK_RSHIFT;
} else {
/* Probably a key repeat */
return (0);
}
}
break;
case VK_MENU:
if (lParam & EXTENDED_KEYMASK)
wParam = VK_RMENU;
else
wParam = VK_LMENU;
break;
348
349
350
351
case VK_RETURN:
if (lParam & EXTENDED_KEYMASK)
wParam = VK_ENTER;
break;
352
}
353
354
355
356
if (wParam < 256) {
SDL_SendKeyboardKey(index, SDL_PRESSED,
data->videodata->key_layout[wParam]);
}
357
358
359
360
361
362
363
364
365
}
return (0);
case WM_SYSKEYUP:
case WM_KEYUP:
{
int index;
index = data->videodata->keyboard;
366
wParam = RemapVKEY(wParam, lParam);
367
368
369
370
371
372
373
374
375
376
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 */
{
377
378
Uint8 *state = SDL_GetKeyboardState(NULL);
if (state[SDL_SCANCODE_LSHIFT] == SDL_PRESSED
379
380
&& !(GetKeyState(VK_LSHIFT) & 0x8000)) {
wParam = VK_LSHIFT;
381
} else if (state[SDL_SCANCODE_RSHIFT] == SDL_PRESSED
382
383
384
385
386
387
388
389
390
391
392
393
394
395
&& !(GetKeyState(VK_RSHIFT) & 0x8000)) {
wParam = VK_RSHIFT;
} else {
/* Probably a key repeat */
return (0);
}
}
break;
case VK_MENU:
if (lParam & EXTENDED_KEYMASK)
wParam = VK_RMENU;
else
wParam = VK_LMENU;
break;
396
397
398
399
case VK_RETURN:
if (lParam & EXTENDED_KEYMASK)
wParam = VK_ENTER;
break;
400
}
401
402
403
/* Windows only reports keyup for print screen */
if (wParam == VK_SNAPSHOT
404
405
&& SDL_GetKeyboardState(NULL)[SDL_SCANCODE_PRINTSCREEN] ==
SDL_RELEASED) {
406
SDL_SendKeyboardKey(index, SDL_PRESSED,
407
408
409
410
411
data->videodata->key_layout[wParam]);
}
if (wParam < 256) {
SDL_SendKeyboardKey(index, SDL_RELEASED,
data->videodata->key_layout[wParam]);
412
413
414
415
}
}
return (0);
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
case WM_CHAR:
{
char text[4];
/* Convert to UTF-8 and send it on... */
if (wParam <= 0x7F) {
text[0] = (char) wParam;
text[1] = '\0';
} else if (wParam <= 0x7FF) {
text[0] = 0xC0 | (char) ((wParam >> 6) & 0x1F);
text[1] = 0x80 | (char) (wParam & 0x3F);
text[2] = '\0';
} else {
text[0] = 0xE0 | (char) ((wParam >> 12) & 0x0F);
text[1] = 0x80 | (char) ((wParam >> 6) & 0x3F);
text[2] = 0x80 | (char) (wParam & 0x3F);
text[3] = '\0';
}
SDL_SendKeyboardText(data->videodata->keyboard, text);
}
return (0);
438
439
440
441
442
443
case WM_INPUTLANGCHANGE:
{
WIN_UpdateKeymap(data->videodata->keyboard);
}
return (1);
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
case WM_GETMINMAXINFO:
{
MINMAXINFO *info;
RECT size;
int x, y;
int w, h;
int style;
/* If we allow resizing, let the resize happen naturally */
if (SDL_GetWindowFlags(data->windowID) & SDL_WINDOW_RESIZABLE) {
return (0);
}
/* Get the current position of our window */
GetWindowRect(hwnd, &size);
x = size.left;
y = size.top;
/* Calculate current size of our window */
SDL_GetWindowSize(data->windowID, &w, &h);
size.top = 0;
size.left = 0;
size.bottom = h;
size.right = w;
/* DJM - according to the docs for GetMenu(), the
return value is undefined if hwnd is a child window.
Aparently it's too difficult for MS to check
inside their function, so I have to do it here.
*/
style = GetWindowLong(hwnd, GWL_STYLE);
475
476
477
AdjustWindowRect(&size, style,
style & WS_CHILDWINDOW ? FALSE : GetMenu(hwnd)
!= NULL);
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
w = size.right - size.left;
h = size.bottom - size.top;
/* Fix our size to the current size */
info = (MINMAXINFO *) lParam;
info->ptMaxSize.x = w;
info->ptMaxSize.y = h;
info->ptMaxPosition.x = x;
info->ptMaxPosition.y = y;
info->ptMinTrackSize.x = w;
info->ptMinTrackSize.y = h;
info->ptMaxTrackSize.x = w;
info->ptMaxTrackSize.y = h;
}
return (0);
case WM_WINDOWPOSCHANGED:
{
RECT rect;
int x, y;
int w, h;
Uint32 window_flags;
GetClientRect(hwnd, &rect);
ClientToScreen(hwnd, (LPPOINT) & rect);
ClientToScreen(hwnd, (LPPOINT) & rect + 1);
window_flags = SDL_GetWindowFlags(data->windowID);
if ((window_flags & SDL_WINDOW_INPUT_GRABBED) &&
(window_flags & SDL_WINDOW_INPUT_FOCUS)) {
ClipCursor(&rect);
}
x = rect.left;
y = rect.top;
SDL_SendWindowEvent(data->windowID, SDL_WINDOWEVENT_MOVED, x, y);
w = rect.right - rect.left;
h = rect.bottom - rect.top;
SDL_SendWindowEvent(data->windowID, SDL_WINDOWEVENT_RESIZED, w,
h);
}
break;
case WM_SETCURSOR:
{
/*
Uint16 hittest;
hittest = LOWORD(lParam);
if (hittest == HTCLIENT) {
SetCursor(SDL_hcursor);
return (TRUE);
}
*/
}
break;
/* We are about to get palette focus! */
case WM_QUERYNEWPALETTE:
{
/*
WIN_RealizePalette(current_video);
return (TRUE);
*/
}
break;
/* Another application changed the palette */
case WM_PALETTECHANGED:
{
/*
WIN_PaletteChanged(current_video, (HWND) wParam);
*/
}
break;
/* We were occluded, refresh our display */
case WM_PAINT:
{
RECT rect;
if (GetUpdateRect(hwnd, &rect, FALSE)) {
ValidateRect(hwnd, &rect);
SDL_SendWindowEvent(data->windowID, SDL_WINDOWEVENT_EXPOSED,
0, 0);
}
}
return (0);
/* We'll do our own drawing, prevent flicker */
case WM_ERASEBKGND:
{
}
return (1);
case WM_SYSCOMMAND:
{
/* Don't start the screensaver or blank the monitor in fullscreen apps */
if ((wParam & 0xFFF0) == SC_SCREENSAVE ||
(wParam & 0xFFF0) == SC_MONITORPOWER) {
if (SDL_GetWindowFlags(data->windowID) &
SDL_WINDOW_FULLSCREEN) {
return (0);
}
}
}
break;
case WM_CLOSE:
{
SDL_SendWindowEvent(data->windowID, SDL_WINDOWEVENT_CLOSE, 0, 0);
}
return (0);
}
return CallWindowProc(data->wndproc, hwnd, msg, wParam, lParam);
}
void
WIN_PumpEvents(_THIS)
{
MSG msg;
while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) {
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
static int app_registered = 0;
LPTSTR SDL_Appname = NULL;
Uint32 SDL_Appstyle = 0;
HINSTANCE SDL_Instance = NULL;
/* Register the class for this application */
int
SDL_RegisterApp(char *name, Uint32 style, void *hInst)
{
WNDCLASS class;
/* Only do this once... */
if (app_registered) {
++app_registered;
return (0);
}
if (!name && !SDL_Appname) {
name = "SDL_app";
SDL_Appstyle = (CS_BYTEALIGNCLIENT | CS_OWNDC);
SDL_Instance = hInst ? hInst : GetModuleHandle(NULL);
}
if (name) {
SDL_Appname = WIN_UTF8ToString(name);
SDL_Appstyle = style;
SDL_Instance = hInst ? hInst : GetModuleHandle(NULL);
}
/* Register the application class */
class.hCursor = NULL;
635
636
637
class.hIcon =
LoadImage(SDL_Instance, SDL_Appname, IMAGE_ICON, 0, 0,
LR_DEFAULTCOLOR);
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
class.lpszMenuName = NULL;
class.lpszClassName = SDL_Appname;
class.hbrBackground = NULL;
class.hInstance = SDL_Instance;
class.style = SDL_Appstyle;
class.lpfnWndProc = DefWindowProc;
class.cbWndExtra = 0;
class.cbClsExtra = 0;
if (!RegisterClass(&class)) {
SDL_SetError("Couldn't register application class");
return (-1);
}
app_registered = 1;
return (0);
}
/* Unregisters the windowclass registered in SDL_RegisterApp above. */
void
SDL_UnregisterApp()
{
WNDCLASS class;
/* SDL_RegisterApp might not have been called before */
if (!app_registered) {
return;
}
--app_registered;
if (app_registered == 0) {
/* Check for any registered window classes. */
if (GetClassInfo(SDL_Instance, SDL_Appname, &class)) {
UnregisterClass(SDL_Appname, SDL_Instance);
}
SDL_free(SDL_Appname);
SDL_Appname = NULL;
}
}
/* Sets an error message based on GetLastError() */
void
WIN_SetError(const char *prefix)
{
TCHAR buffer[1024];
char *message;
682
683
FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, NULL, GetLastError(), 0,
buffer, SDL_arraysize(buffer), NULL);
684
685
686
687
688
689
message = WIN_StringToUTF8(buffer);
SDL_SetError("%s%s%s", prefix ? prefix : "", prefix ? ":" : "", message);
SDL_free(message);
}
/* vi: set ts=4 sw=4 expandtab: */