/
SDL_winrtmouse.cpp
477 lines (415 loc) · 17.6 KB
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
/*
Simple DirectMedia Layer
Copyright (C) 1997-2012 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#include "SDL_config.h"
#if SDL_VIDEO_DRIVER_WINRT
/*
* Windows includes:
*/
#include <Windows.h>
using namespace Windows::UI::Core;
using Windows::UI::Core::CoreCursor;
/*
* SDL includes:
*/
extern "C" {
#include "SDL_assert.h"
#include "../../events/SDL_mouse_c.h"
39
#include "../../events/SDL_touch_c.h"
40
41
42
43
44
45
#include "../SDL_sysvideo.h"
#include "SDL_events.h"
#include "SDL_log.h"
}
#include "../../core/winrt/SDL_winrtapp.h"
46
#include "SDL_winrtvideo_cpp.h"
47
48
49
50
#include "SDL_winrtmouse.h"
static SDL_bool WINRT_UseRelativeMouseMode = SDL_FALSE;
51
52
static SDL_TouchID WINRT_TouchID = 1;
static unsigned int WINRT_LeftFingerDown = 0;
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
static SDL_Cursor *
WINRT_CreateSystemCursor(SDL_SystemCursor id)
{
SDL_Cursor *cursor;
CoreCursorType cursorType = CoreCursorType::Arrow;
switch(id)
{
default:
SDL_assert(0);
return NULL;
case SDL_SYSTEM_CURSOR_ARROW: cursorType = CoreCursorType::Arrow; break;
case SDL_SYSTEM_CURSOR_IBEAM: cursorType = CoreCursorType::IBeam; break;
case SDL_SYSTEM_CURSOR_WAIT: cursorType = CoreCursorType::Wait; break;
case SDL_SYSTEM_CURSOR_CROSSHAIR: cursorType = CoreCursorType::Cross; break;
case SDL_SYSTEM_CURSOR_WAITARROW: cursorType = CoreCursorType::Wait; break;
case SDL_SYSTEM_CURSOR_SIZENWSE: cursorType = CoreCursorType::SizeNorthwestSoutheast; break;
case SDL_SYSTEM_CURSOR_SIZENESW: cursorType = CoreCursorType::SizeNortheastSouthwest; break;
case SDL_SYSTEM_CURSOR_SIZEWE: cursorType = CoreCursorType::SizeWestEast; break;
case SDL_SYSTEM_CURSOR_SIZENS: cursorType = CoreCursorType::SizeNorthSouth; break;
case SDL_SYSTEM_CURSOR_SIZEALL: cursorType = CoreCursorType::SizeAll; break;
case SDL_SYSTEM_CURSOR_NO: cursorType = CoreCursorType::UniversalNo; break;
case SDL_SYSTEM_CURSOR_HAND: cursorType = CoreCursorType::Hand; break;
}
cursor = (SDL_Cursor *) SDL_calloc(1, sizeof(*cursor));
if (cursor) {
/* Create a pointer to a COM reference to a cursor. The extra
pointer is used (on top of the COM reference) to allow the cursor
to be referenced by the SDL_cursor's driverdata field, which is
a void pointer.
*/
CoreCursor ^* theCursor = new CoreCursor^(nullptr);
*theCursor = ref new CoreCursor(cursorType, 0);
cursor->driverdata = (void *) theCursor;
} else {
SDL_OutOfMemory();
}
return cursor;
}
static SDL_Cursor *
WINRT_CreateDefaultCursor()
{
return WINRT_CreateSystemCursor(SDL_SYSTEM_CURSOR_ARROW);
}
static void
WINRT_FreeCursor(SDL_Cursor * cursor)
{
if (cursor->driverdata) {
CoreCursor ^* theCursor = (CoreCursor ^*) cursor->driverdata;
*theCursor = nullptr; // Release the COM reference to the CoreCursor
delete theCursor; // Delete the pointer to the COM reference
}
SDL_free(cursor);
}
static int
WINRT_ShowCursor(SDL_Cursor * cursor)
{
117
118
119
120
121
// TODO, WinRT, XAML: make WINRT_ShowCursor work when XAML support is enabled.
if ( ! CoreWindow::GetForCurrentThread()) {
return 0;
}
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
if (cursor) {
CoreCursor ^* theCursor = (CoreCursor ^*) cursor->driverdata;
CoreWindow::GetForCurrentThread()->PointerCursor = *theCursor;
} else {
CoreWindow::GetForCurrentThread()->PointerCursor = nullptr;
}
return 0;
}
static int
WINRT_SetRelativeMouseMode(SDL_bool enabled)
{
WINRT_UseRelativeMouseMode = enabled;
return 0;
}
void
WINRT_InitMouse(_THIS)
{
SDL_Mouse *mouse = SDL_GetMouse();
/* DLudwig, Dec 3, 2012: WinRT does not currently provide APIs for
the following features, AFAIK:
- custom cursors (multiple system cursors are, however, available)
- programmatically moveable cursors
*/
#if WINAPI_FAMILY != WINAPI_FAMILY_PHONE_APP
//mouse->CreateCursor = WINRT_CreateCursor;
mouse->CreateSystemCursor = WINRT_CreateSystemCursor;
mouse->ShowCursor = WINRT_ShowCursor;
mouse->FreeCursor = WINRT_FreeCursor;
//mouse->WarpMouse = WINRT_WarpMouse;
mouse->SetRelativeMouseMode = WINRT_SetRelativeMouseMode;
SDL_SetDefaultCursor(WINRT_CreateDefaultCursor());
#endif
159
160
161
162
163
#if WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP
/* Init touch: */
SDL_AddTouch(WINRT_TouchID, "");
#endif
164
165
166
167
168
169
170
}
void
WINRT_QuitMouse(_THIS)
{
}
171
// Applies necessary geometric transformations to raw cursor positions:
172
173
Windows::Foundation::Point
WINRT_TransformCursorPosition(SDL_Window * window, Windows::Foundation::Point rawPosition)
174
{
175
176
using namespace Windows::Graphics::Display;
177
178
179
if (!window) {
return rawPosition;
}
180
181
182
183
184
185
186
187
188
189
190
191
192
193
SDL_WindowData * windowData = (SDL_WindowData *) window->driverdata;
if (windowData->coreWindow == nullptr) {
// For some reason, the window isn't associated with a CoreWindow.
// This might end up being the case as XAML support is extended.
// For now, if there's no CoreWindow attached to the SDL_Window,
// don't do any transforms.
return rawPosition;
}
// The CoreWindow can only be accessed on certain thread(s).
SDL_assert(CoreWindow::GetForCurrentThread() != nullptr);
CoreWindow ^ nativeWindow = windowData->coreWindow.Get();
194
Windows::Foundation::Point outputPosition;
195
196
#if WINAPI_FAMILY != WINAPI_FAMILY_PHONE_APP
197
198
outputPosition.X = rawPosition.X * (((float32)window->w) / nativeWindow->Bounds.Width);
outputPosition.Y = rawPosition.Y * (((float32)window->h) / nativeWindow->Bounds.Height);
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
#else
switch (DisplayProperties::CurrentOrientation)
{
case DisplayOrientations::Portrait:
outputPosition.X = rawPosition.X * (((float32)window->w) / nativeWindow->Bounds.Width);
outputPosition.Y = rawPosition.Y * (((float32)window->h) / nativeWindow->Bounds.Height);
break;
case DisplayOrientations::PortraitFlipped:
outputPosition.X = (float32)window->w - rawPosition.X * (((float32)window->w) / nativeWindow->Bounds.Width);
outputPosition.Y = (float32)window->h - rawPosition.Y * (((float32)window->h) / nativeWindow->Bounds.Height);
break;
case DisplayOrientations::Landscape:
outputPosition.X = rawPosition.Y * (((float32)window->w) / nativeWindow->Bounds.Height);
outputPosition.Y = (float32)window->h - rawPosition.X * (((float32)window->h) / nativeWindow->Bounds.Width);
break;
case DisplayOrientations::LandscapeFlipped:
outputPosition.X = (float32)window->w - rawPosition.Y * (((float32)window->w) / nativeWindow->Bounds.Height);
outputPosition.Y = rawPosition.X * (((float32)window->h) / nativeWindow->Bounds.Width);
break;
default:
break;
}
#endif
223
return outputPosition;
224
225
}
226
227
228
229
230
231
232
233
static inline int
_lround(float arg)
{
if (arg >= 0.0f) {
return (int)floor(arg + 0.5f);
} else {
return (int)ceil(arg - 0.5f);
}
234
235
236
237
238
239
240
241
242
}
void
WINRT_ProcessMouseMovedEvent(SDL_Window * window, Windows::Devices::Input::MouseEventArgs ^args)
{
if (!window || !WINRT_UseRelativeMouseMode) {
return;
}
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
// DLudwig, 2012-12-28: On some systems, namely Visual Studio's Windows
// Simulator, as well as Windows 8 in a Parallels 8 VM, MouseEventArgs'
// MouseDelta field often reports very large values. More information
// on this can be found at the following pages on MSDN:
// - http://social.msdn.microsoft.com/Forums/en-US/winappswithnativecode/thread/a3c789fa-f1c5-49c4-9c0a-7db88d0f90f8
// - https://connect.microsoft.com/VisualStudio/Feedback/details/756515
//
// The values do not appear to be as large when running on some systems,
// most notably a Surface RT. Furthermore, the values returned by
// CoreWindow's PointerMoved event, and sent to this class' OnPointerMoved
// method, do not ever appear to be large, even when MouseEventArgs'
// MouseDelta is reporting to the contrary.
//
// On systems with the large-values behavior, it appears that the values
// get reported as if the screen's size is 65536 units in both the X and Y
// dimensions. This can be viewed by using Windows' now-private, "Raw Input"
// APIs. (GetRawInputData, RegisterRawInputDevices, WM_INPUT, etc.)
//
// MSDN's documentation on MouseEventArgs' MouseDelta field (at
// http://msdn.microsoft.com/en-us/library/windows/apps/windows.devices.input.mouseeventargs.mousedelta ),
// does not seem to indicate (to me) that its values should be so large. It
// says that its values should be a "change in screen location". I could
// be misinterpreting this, however a post on MSDN from a Microsoft engineer (see:
// http://social.msdn.microsoft.com/Forums/en-US/winappswithnativecode/thread/09a9868e-95bb-4858-ba1a-cb4d2c298d62 ),
// indicates that these values are in DIPs, which is the same unit used
// by CoreWindow's PointerMoved events (via the Position field in its CurrentPoint
// property. See http://msdn.microsoft.com/en-us/library/windows/apps/windows.ui.input.pointerpoint.position.aspx
// for details.)
//
// To note, PointerMoved events are sent a 'RawPosition' value (via the
// CurrentPoint property in MouseEventArgs), however these do not seem
// to exhibit the same large-value behavior.
//
// The values passed via PointerMoved events can't always be used for relative
// mouse motion, unfortunately. Its values are bound to the cursor's position,
// which stops when it hits one of the screen's edges. This can be a problem in
// first person shooters, whereby it is normal for mouse motion to travel far
// along any one axis for a period of time. MouseMoved events do not have the
// screen-bounding limitation, and can be used regardless of where the system's
// cursor is.
//
// One possible workaround would be to programmatically set the cursor's
// position to the screen's center (when SDL's relative mouse mode is enabled),
286
// however WinRT does not yet seem to have the ability to set the cursor's
287
288
289
290
291
292
293
294
295
296
297
298
299
// position via a public API. Win32 did this via an API call, SetCursorPos,
// however WinRT makes this function be private. Apps that use it won't get
// approved for distribution in the Windows Store. I've yet to be able to find
// a suitable, store-friendly counterpart for WinRT.
//
// There may be some room for a workaround whereby OnPointerMoved's values
// are compared to the values from OnMouseMoved in order to detect
// when this bug is active. A suitable transformation could then be made to
// OnMouseMoved's values. For now, however, the system-reported values are sent
// to SDL with minimal transformation: from native screen coordinates (in DIPs)
// to SDL window coordinates.
//
const Windows::Foundation::Point mouseDeltaInDIPs((float)args->MouseDelta.X, (float)args->MouseDelta.Y);
300
const Windows::Foundation::Point mouseDeltaInSDLWindowCoords = WINRT_TransformCursorPosition(window, mouseDeltaInDIPs);
301
302
303
304
305
306
SDL_SendMouseMotion(
window,
0,
1,
_lround(mouseDeltaInSDLWindowCoords.X),
_lround(mouseDeltaInSDLWindowCoords.Y));
307
308
}
309
Uint8
310
311
312
313
WINRT_GetSDLButtonForPointerPoint(Windows::UI::Input::PointerPoint ^pt)
{
using namespace Windows::UI::Input;
314
315
316
#if WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP
return SDL_BUTTON_LEFT;
#else
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
switch (pt->Properties->PointerUpdateKind)
{
case PointerUpdateKind::LeftButtonPressed:
case PointerUpdateKind::LeftButtonReleased:
return SDL_BUTTON_LEFT;
case PointerUpdateKind::RightButtonPressed:
case PointerUpdateKind::RightButtonReleased:
return SDL_BUTTON_RIGHT;
case PointerUpdateKind::MiddleButtonPressed:
case PointerUpdateKind::MiddleButtonReleased:
return SDL_BUTTON_MIDDLE;
case PointerUpdateKind::XButton1Pressed:
case PointerUpdateKind::XButton1Released:
return SDL_BUTTON_X1;
case PointerUpdateKind::XButton2Pressed:
case PointerUpdateKind::XButton2Released:
return SDL_BUTTON_X2;
default:
break;
}
342
#endif
343
344
345
346
return 0;
}
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
//const char *
//WINRT_ConvertPointerUpdateKindToString(Windows::UI::Input::PointerUpdateKind kind)
//{
// using namespace Windows::UI::Input;
//
// switch (kind)
// {
// case PointerUpdateKind::Other:
// return "Other";
// case PointerUpdateKind::LeftButtonPressed:
// return "LeftButtonPressed";
// case PointerUpdateKind::LeftButtonReleased:
// return "LeftButtonReleased";
// case PointerUpdateKind::RightButtonPressed:
// return "RightButtonPressed";
// case PointerUpdateKind::RightButtonReleased:
// return "RightButtonReleased";
// case PointerUpdateKind::MiddleButtonPressed:
// return "MiddleButtonPressed";
// case PointerUpdateKind::MiddleButtonReleased:
// return "MiddleButtonReleased";
// case PointerUpdateKind::XButton1Pressed:
// return "XButton1Pressed";
// case PointerUpdateKind::XButton1Released:
// return "XButton1Released";
// case PointerUpdateKind::XButton2Pressed:
// return "XButton2Pressed";
// case PointerUpdateKind::XButton2Released:
// return "XButton2Released";
// }
//
// return "";
//}
380
381
void
382
WINRT_ProcessPointerMovedEvent(SDL_Window *window, Windows::UI::Input::PointerPoint ^pointerPoint)
383
384
385
386
387
{
if (!window || WINRT_UseRelativeMouseMode) {
return;
}
388
Windows::Foundation::Point transformedPoint = WINRT_TransformCursorPosition(window, pointerPoint->Position);
389
390
391
392
393
394
395
396
397
398
399
400
401
402
if (pointerPoint->PointerId == WINRT_LeftFingerDown) {
SDL_SendMouseMotion(window, 0, 0, (int)transformedPoint.X, (int)transformedPoint.Y);
}
#if WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP
// TODO, WinRT: make touch input work with Windows 8/RT, seeing if touches can be distinguished from mouse input.
SDL_SendTouchMotion(
WINRT_TouchID,
(SDL_FingerID) pointerPoint->PointerId,
transformedPoint.X,
transformedPoint.Y,
pointerPoint->Properties->Pressure);
#endif
403
404
405
}
void
406
WINRT_ProcessPointerWheelChangedEvent(SDL_Window *window, Windows::UI::Input::PointerPoint ^pointerPoint)
407
408
409
410
411
412
{
if (!window) {
return;
}
// FIXME: This may need to accumulate deltas up to WHEEL_DELTA
413
short motion = pointerPoint->Properties->MouseWheelDelta / WHEEL_DELTA;
414
SDL_SendMouseWheel(window, 0, 0, motion);
415
416
}
417
void WINRT_ProcessPointerReleasedEvent(SDL_Window *window, Windows::UI::Input::PointerPoint ^pointerPoint)
418
419
420
421
422
{
if (!window) {
return;
}
423
424
425
426
427
428
429
430
Windows::Foundation::Point transformedPoint = WINRT_TransformCursorPosition(window, pointerPoint->Position);
if (WINRT_LeftFingerDown == pointerPoint->PointerId) {
Uint8 button = WINRT_GetSDLButtonForPointerPoint(pointerPoint);
if (button) {
SDL_SendMouseButton(window, 0, SDL_RELEASED, button);
}
WINRT_LeftFingerDown = 0;
431
}
432
433
434
435
436
437
438
439
440
441
#if WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP
SDL_SendTouch(
WINRT_TouchID,
(SDL_FingerID) pointerPoint->PointerId,
SDL_FALSE,
transformedPoint.X,
transformedPoint.Y,
pointerPoint->Properties->Pressure);
#endif
442
443
}
444
void WINRT_ProcessPointerPressedEvent(SDL_Window *window, Windows::UI::Input::PointerPoint ^pointerPoint)
445
446
447
448
449
{
if (!window) {
return;
}
450
451
452
453
454
Windows::Foundation::Point transformedPoint = WINRT_TransformCursorPosition(window, pointerPoint->Position);
if (!WINRT_LeftFingerDown) {
Uint8 button = WINRT_GetSDLButtonForPointerPoint(pointerPoint);
if (button) {
455
#if WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP
456
SDL_SendMouseMotion(window, 0, 0, (int)transformedPoint.X, (int)transformedPoint.Y);
457
#endif
458
459
460
461
SDL_SendMouseButton(window, 0, SDL_PRESSED, button);
}
WINRT_LeftFingerDown = pointerPoint->PointerId;
462
}
463
464
465
466
467
468
469
470
471
472
#if WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP
SDL_SendTouch(
WINRT_TouchID,
(SDL_FingerID) pointerPoint->PointerId,
SDL_TRUE,
transformedPoint.X,
transformedPoint.Y,
pointerPoint->Properties->Pressure);
#endif
473
474
475
476
477
}
#endif /* SDL_VIDEO_DRIVER_WINRT */
/* vi: set ts=4 sw=4 expandtab: */