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SDL_touch.h
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SDL_touch.h
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2011 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
*/
/**
* \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
/* *INDENT-OFF* */
extern "C" {
/* *INDENT-ON* */
#endif
typedef Sint64 SDL_TouchID;
typedef Sint64 SDL_FingerID;
struct SDL_Finger {
SDL_FingerID id;
Uint16 x;
Uint16 y;
Uint16 pressure;
Uint16 xdelta;
Uint16 ydelta;
Uint16 last_x, last_y,last_pressure; /* the last reported coordinates */
SDL_bool down;
};
typedef struct SDL_Touch SDL_Touch;
typedef struct SDL_Finger SDL_Finger;
struct SDL_Touch {
/* Free the touch when it's time */
void (*FreeTouch) (SDL_Touch * touch);
/* data common for tablets */
float pressure_max, pressure_min;
float x_max,x_min;
float y_max,y_min;
Uint16 xres,yres,pressureres;
float native_xres,native_yres,native_pressureres;
float tilt; /* for future use */
float rotation; /* for future use */
/* Data common to all touch */
SDL_TouchID id;
SDL_Window *focus;
char *name;
Uint8 buttonstate;
SDL_bool relative_mode;
SDL_bool flush_motion;
int num_fingers;
int max_fingers;
SDL_Finger** fingers;
void *driverdata;
};
/* Function prototypes */
/**
* \brief Get the touch object at the given id.
*
*
*/
extern DECLSPEC SDL_Touch* SDLCALL SDL_GetTouch(SDL_TouchID id);
/**
* \brief Get the finger object of the given touch, at the given id.
*
*
*/
extern
DECLSPEC SDL_Finger* SDLCALL SDL_GetFinger(SDL_Touch *touch, SDL_FingerID id);
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
/* *INDENT-OFF* */
}
/* *INDENT-ON* */
#endif
#include "close_code.h"
#endif /* _SDL_mouse_h */
/* vi: set ts=4 sw=4 expandtab: */