From 5a079a2d114f96d4847d1ee305d5b7c16eeec50e Mon Sep 17 00:00:00 2001 From: 3gg <3gg@shellblade.net> Date: Sat, 27 Dec 2025 12:03:39 -0800 Subject: Initial commit --- contrib/SDL-3.2.8/src/video/cocoa/SDL_cocoapen.m | 178 +++++++++++++++++++++++ 1 file changed, 178 insertions(+) create mode 100644 contrib/SDL-3.2.8/src/video/cocoa/SDL_cocoapen.m (limited to 'contrib/SDL-3.2.8/src/video/cocoa/SDL_cocoapen.m') diff --git a/contrib/SDL-3.2.8/src/video/cocoa/SDL_cocoapen.m b/contrib/SDL-3.2.8/src/video/cocoa/SDL_cocoapen.m new file mode 100644 index 0000000..6c30bfb --- /dev/null +++ b/contrib/SDL-3.2.8/src/video/cocoa/SDL_cocoapen.m @@ -0,0 +1,178 @@ +/* + Simple DirectMedia Layer + Copyright (C) 1997-2025 Sam Lantinga + + 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" + +#include "../../events/SDL_pen_c.h" + +bool Cocoa_InitPen(SDL_VideoDevice *_this) +{ + return true; +} + +typedef struct Cocoa_PenHandle +{ + NSUInteger deviceid; + NSUInteger toolid; + SDL_PenID pen; + bool is_eraser; +} Cocoa_PenHandle; + +typedef struct FindPenByDeviceAndToolIDData +{ + NSUInteger deviceid; + NSUInteger toolid; + void *handle; +} FindPenByDeviceAndToolIDData; + +static 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 false; + } else if (cocoa_handle->toolid != data->toolid) { + return false; + } + data->handle = handle; + return 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 bool is_eraser = (devtype == NSPointingDeviceTypeEraser); + const 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 as specifics, but can without warning offer any of these specific things. + SDL_PenInfo peninfo; + SDL_zero(peninfo); + peninfo.capabilities = SDL_PEN_CAPABILITY_PRESSURE | SDL_PEN_CAPABILITY_ROTATION | SDL_PEN_CAPABILITY_XTILT | SDL_PEN_CAPABILITY_YTILT | SDL_PEN_CAPABILITY_TANGENTIAL_PRESSURE | (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 Uint64 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 bool is_touching = (buttons & NSEventButtonMaskPenTip) != 0; + SDL_Window *window = _data.window; + + SDL_SendPenTouch(timestamp, pen, window, handle->is_eraser, is_touching); + SDL_SendPenMotion(timestamp, pen, window, (float) point.x, (float) (window->h - point.y)); + SDL_SendPenButton(timestamp, pen, window, 1, ((buttons & NSEventButtonMaskPenLowerSide) != 0)); + SDL_SendPenButton(timestamp, pen, window, 2, ((buttons & NSEventButtonMaskPenUpperSide) != 0)); + 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_SendPenAxis(timestamp, pen, window, SDL_PEN_AXIS_TANGENTIAL_PRESSURE, event.tangentialPressure); +} + +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 false; // not a tablet event. + } + } + + if (type == NSEventTypeTabletPoint) { + Cocoa_HandlePenPointEvent(_data, event); + } else if (type == NSEventTypeTabletProximity) { + Cocoa_HandlePenProximityEvent(_data, event); + } else { + return false; // not a tablet event. + } + + return 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 -- cgit v1.2.3