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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,32 @@ | ||
| /* | ||
| Simple DirectMedia Layer | ||
| Copyright (C) 1997-2024 Sam Lantinga <[email protected]> | ||
| 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_internal.h" | ||
|
|
||
| #ifndef SDL_cocoapen_h_ | ||
| #define SDL_cocoapenm_h_ | ||
|
|
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| #include "SDL_cocoavideo.h" | ||
|
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| extern int Cocoa_InitPen(SDL_VideoDevice *_this); | ||
| extern SDL_bool Cocoa_HandlePenEvent(SDL_CocoaWindowData *_data, NSEvent *event); // return SDL_FALSE if we didn't handle this event. | ||
| extern void Cocoa_QuitPen(SDL_VideoDevice *_this); | ||
|
|
||
| #endif /* SDL_cocoapen_h_ */ |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,177 @@ | ||
| /* | ||
| Simple DirectMedia Layer | ||
| Copyright (C) 1997-2024 Sam Lantinga <[email protected]> | ||
| 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_internal.h" | ||
|
|
||
| #ifdef SDL_VIDEO_DRIVER_COCOA | ||
|
|
||
| #include "SDL_cocoapen.h" | ||
| #include "SDL_cocoavideo.h" | ||
|
|
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| #include "../../events/SDL_pen_c.h" | ||
|
|
||
| int Cocoa_InitPen(SDL_VideoDevice *_this) | ||
| { | ||
| return 0; | ||
| } | ||
|
|
||
| typedef struct Cocoa_PenHandle | ||
| { | ||
| NSUInteger deviceid; | ||
| NSUInteger toolid; | ||
| SDL_PenID pen; | ||
| SDL_bool is_eraser; | ||
| } Cocoa_PenHandle; | ||
|
|
||
| typedef struct FindPenByDeviceAndToolIDData | ||
| { | ||
| NSUInteger deviceid; | ||
| NSUInteger toolid; | ||
| void *handle; | ||
| } FindPenByDeviceAndToolIDData; | ||
|
|
||
| static SDL_bool FindPenByDeviceAndToolID(void *handle, void *userdata) | ||
| { | ||
| const Cocoa_PenHandle *cocoa_handle = (const Cocoa_PenHandle *) handle; | ||
| FindPenByDeviceAndToolIDData *data = (FindPenByDeviceAndToolIDData *) userdata; | ||
|
|
||
| if (cocoa_handle->deviceid != data->deviceid) { | ||
| return SDL_FALSE; | ||
| } else if (cocoa_handle->toolid != data->toolid) { | ||
| return SDL_FALSE; | ||
| } | ||
| data->handle = handle; | ||
| return SDL_TRUE; | ||
| } | ||
|
|
||
| static Cocoa_PenHandle *Cocoa_FindPenByDeviceID(NSUInteger deviceid, NSUInteger toolid) | ||
| { | ||
| FindPenByDeviceAndToolIDData data; | ||
| data.deviceid = deviceid; | ||
| data.toolid = toolid; | ||
| data.handle = NULL; | ||
| SDL_FindPenByCallback(FindPenByDeviceAndToolID, &data); | ||
| return (Cocoa_PenHandle *) data.handle; | ||
| } | ||
|
|
||
| static void Cocoa_HandlePenProximityEvent(SDL_CocoaWindowData *_data, NSEvent *event) | ||
| { | ||
| const NSUInteger devid = [event deviceID]; | ||
| const NSUInteger toolid = [event pointingDeviceID]; | ||
|
|
||
| if (event.enteringProximity) { // new pen coming! | ||
| const NSPointingDeviceType devtype = [event pointingDeviceType]; | ||
| const SDL_bool is_eraser = (devtype == NSPointingDeviceTypeEraser); | ||
| const SDL_bool is_pen = (devtype == NSPointingDeviceTypePen); | ||
| if (!is_eraser && !is_pen) { | ||
| return; // we ignore other things, which hopefully is right. | ||
| } | ||
|
|
||
| Cocoa_PenHandle *handle = (Cocoa_PenHandle *) SDL_calloc(1, sizeof (*handle)); | ||
| if (!handle) { | ||
| return; // oh well. | ||
| } | ||
|
|
||
| // Cocoa offers almost none of this information. | ||
| SDL_PenInfo peninfo; | ||
| SDL_zero(peninfo); | ||
| peninfo.capabilities = SDL_PEN_CAPABILITY_PRESSURE | SDL_PEN_CAPABILITY_ROTATION | SDL_PEN_CAPABILITY_XTILT | SDL_PEN_CAPABILITY_YTILT | (is_eraser ? SDL_PEN_CAPABILITY_ERASER : 0); | ||
| peninfo.max_tilt = 90.0f; | ||
| peninfo.num_buttons = 2; | ||
| peninfo.subtype = is_eraser ? SDL_PEN_TYPE_ERASER : SDL_PEN_TYPE_PEN; | ||
|
|
||
| handle->deviceid = devid; | ||
| handle->toolid = toolid; | ||
| handle->is_eraser = is_eraser; | ||
| handle->pen = SDL_AddPenDevice(Cocoa_GetEventTimestamp([event timestamp]), NULL, &peninfo, handle); | ||
| if (!handle->pen) { | ||
| SDL_free(handle); // oh well. | ||
| } | ||
| } else { // old pen leaving! | ||
| Cocoa_PenHandle *handle = Cocoa_FindPenByDeviceID(devid, toolid); | ||
| if (handle) { | ||
| SDL_RemovePenDevice(Cocoa_GetEventTimestamp([event timestamp]), handle->pen); | ||
| SDL_free(handle); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| static void Cocoa_HandlePenPointEvent(SDL_CocoaWindowData *_data, NSEvent *event) | ||
| { | ||
| const Uint32 timestamp = Cocoa_GetEventTimestamp([event timestamp]); | ||
| Cocoa_PenHandle *handle = Cocoa_FindPenByDeviceID([event deviceID], [event pointingDeviceID]); | ||
| if (!handle) { | ||
| return; | ||
| } | ||
|
|
||
| const SDL_PenID pen = handle->pen; | ||
| const NSEventButtonMask buttons = [event buttonMask]; | ||
| const NSPoint tilt = [event tilt]; | ||
| const NSPoint point = [event locationInWindow]; | ||
| const SDL_bool is_touching = (buttons & NSEventButtonMaskPenTip) != 0; | ||
| SDL_Window *window = _data.window; | ||
|
|
||
| SDL_SendPenTouch(timestamp, pen, window, is_touching, handle->is_eraser ? 1 : 0); | ||
| SDL_SendPenMotion(timestamp, pen, window, (float) point.x, (float) (window->h - point.y)); | ||
| SDL_SendPenButton(timestamp, pen, window, (buttons & NSEventButtonMaskPenLowerSide) ? SDL_PRESSED : SDL_RELEASED, 1); | ||
| SDL_SendPenButton(timestamp, pen, window, (buttons & NSEventButtonMaskPenUpperSide) ? SDL_PRESSED : SDL_RELEASED, 2); | ||
| SDL_SendPenAxis(timestamp, pen, window, SDL_PEN_AXIS_PRESSURE, [event pressure]); | ||
| SDL_SendPenAxis(timestamp, pen, window, SDL_PEN_AXIS_ROTATION, [event rotation]); | ||
| SDL_SendPenAxis(timestamp, pen, window, SDL_PEN_AXIS_XTILT, ((float) tilt.x) * 90.0f); | ||
| SDL_SendPenAxis(timestamp, pen, window, SDL_PEN_AXIS_YTILT, ((float) tilt.y) * 90.0f); | ||
| } | ||
|
|
||
| SDL_bool Cocoa_HandlePenEvent(SDL_CocoaWindowData *_data, NSEvent *event) | ||
| { | ||
| NSEventType type = [event type]; | ||
|
|
||
| if ((type != NSEventTypeTabletPoint) && (type != NSEventTypeTabletProximity)) { | ||
| const NSEventSubtype subtype = [event subtype]; | ||
| if (subtype == NSEventSubtypeTabletPoint) { | ||
| type = NSEventTypeTabletPoint; | ||
| } else if (subtype == NSEventSubtypeTabletProximity) { | ||
| type = NSEventTypeTabletProximity; | ||
| } else { | ||
| return SDL_FALSE; // not a tablet event. | ||
| } | ||
| } | ||
|
|
||
| if (type == NSEventTypeTabletPoint) { | ||
| Cocoa_HandlePenPointEvent(_data, event); | ||
| } else if (type == NSEventTypeTabletProximity) { | ||
| Cocoa_HandlePenProximityEvent(_data, event); | ||
| } else { | ||
| return SDL_FALSE; // not a tablet event. | ||
| } | ||
|
|
||
| return SDL_TRUE; | ||
| } | ||
|
|
||
| static void Cocoa_FreePenHandle(SDL_PenID instance_id, void *handle, void *userdata) | ||
| { | ||
| SDL_free(handle); | ||
| } | ||
|
|
||
| void Cocoa_QuitPen(SDL_VideoDevice *_this) | ||
| { | ||
| SDL_RemoveAllPenDevices(Cocoa_FreePenHandle, NULL); | ||
| } | ||
|
|
||
| #endif /* SDL_VIDEO_DRIVER_COCOA */ |
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