From 375c120d30456738897c4bd775e38aa1db7d239c Mon Sep 17 00:00:00 2001 From: Fox Caminiti Date: Thu, 22 Dec 2022 13:29:02 -0500 Subject: v3.1 --- dependencies/include/SDL/SDL_touch.h | 150 +++++++++++++++++++++++++++++++++++ 1 file changed, 150 insertions(+) create mode 100644 dependencies/include/SDL/SDL_touch.h (limited to 'dependencies/include/SDL/SDL_touch.h') diff --git a/dependencies/include/SDL/SDL_touch.h b/dependencies/include/SDL/SDL_touch.h new file mode 100644 index 0000000..9592413 --- /dev/null +++ b/dependencies/include/SDL/SDL_touch.h @@ -0,0 +1,150 @@ +/* + Simple DirectMedia Layer + Copyright (C) 1997-2022 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. +*/ + +/** + * \file SDL_touch.h + * + * Include file for SDL touch event handling. + */ + +#ifndef SDL_touch_h_ +#define SDL_touch_h_ + +#include "SDL_stdinc.h" +#include "SDL_error.h" +#include "SDL_video.h" + +#include "begin_code.h" +/* Set up for C function definitions, even when using C++ */ +#ifdef __cplusplus +extern "C" { +#endif + +typedef Sint64 SDL_TouchID; +typedef Sint64 SDL_FingerID; + +typedef enum +{ + SDL_TOUCH_DEVICE_INVALID = -1, + SDL_TOUCH_DEVICE_DIRECT, /* touch screen with window-relative coordinates */ + SDL_TOUCH_DEVICE_INDIRECT_ABSOLUTE, /* trackpad with absolute device coordinates */ + SDL_TOUCH_DEVICE_INDIRECT_RELATIVE /* trackpad with screen cursor-relative coordinates */ +} SDL_TouchDeviceType; + +typedef struct SDL_Finger +{ + SDL_FingerID id; + float x; + float y; + float pressure; +} SDL_Finger; + +/* Used as the device ID for mouse events simulated with touch input */ +#define SDL_TOUCH_MOUSEID ((Uint32)-1) + +/* Used as the SDL_TouchID for touch events simulated with mouse input */ +#define SDL_MOUSE_TOUCHID ((Sint64)-1) + + +/** + * Get the number of registered touch devices. + * + * On some platforms SDL first sees the touch device if it was actually used. + * Therefore SDL_GetNumTouchDevices() may return 0 although devices are + * available. After using all devices at least once the number will be + * correct. + * + * This was fixed for Android in SDL 2.0.1. + * + * \returns the number of registered touch devices. + * + * \since This function is available since SDL 2.0.0. + * + * \sa SDL_GetTouchDevice + */ +extern DECLSPEC int SDLCALL SDL_GetNumTouchDevices(void); + +/** + * Get the touch ID with the given index. + * + * \param index the touch device index + * \returns the touch ID with the given index on success or 0 if the index is + * invalid; call SDL_GetError() for more information. + * + * \since This function is available since SDL 2.0.0. + * + * \sa SDL_GetNumTouchDevices + */ +extern DECLSPEC SDL_TouchID SDLCALL SDL_GetTouchDevice(int index); + +/** + * Get the touch device name as reported from the driver or NULL if the index + * is invalid. + * + * \since This function is available since SDL 2.0.22. + */ +extern DECLSPEC const char* SDLCALL SDL_GetTouchName(int index); + +/** + * Get the type of the given touch device. + * + * \since This function is available since SDL 2.0.10. + */ +extern DECLSPEC SDL_TouchDeviceType SDLCALL SDL_GetTouchDeviceType(SDL_TouchID touchID); + +/** + * Get the number of active fingers for a given touch device. + * + * \param touchID the ID of a touch device + * \returns the number of active fingers for a given touch device on success + * or 0 on failure; call SDL_GetError() for more information. + * + * \since This function is available since SDL 2.0.0. + * + * \sa SDL_GetTouchFinger + */ +extern DECLSPEC int SDLCALL SDL_GetNumTouchFingers(SDL_TouchID touchID); + +/** + * Get the finger object for specified touch device ID and finger index. + * + * The returned resource is owned by SDL and should not be deallocated. + * + * \param touchID the ID of the requested touch device + * \param index the index of the requested finger + * \returns a pointer to the SDL_Finger object or NULL if no object at the + * given ID and index could be found. + * + * \since This function is available since SDL 2.0.0. + * + * \sa SDL_RecordGesture + */ +extern DECLSPEC SDL_Finger * SDLCALL SDL_GetTouchFinger(SDL_TouchID touchID, int index); + +/* Ends C function definitions when using C++ */ +#ifdef __cplusplus +} +#endif +#include "close_code.h" + +#endif /* SDL_touch_h_ */ + +/* vi: set ts=4 sw=4 expandtab: */ -- cgit v1.2.3