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/*
* This file is subject to the terms of the GFX License. If a copy of
* the license was not distributed with this file, you can obtain one at:
*
* http://ugfx.org/license.html
*/
/**
* @file src/ginput/ginput_mouse.h
* @brief GINPUT GFX User Input subsystem header file for mouse and touch.
*
* @defgroup Mouse Mouse
* @ingroup GINPUT
*
* @details GINPUT allows it to easily interface touchscreens and mices to
* your application.
*
* @pre GFX_USE_GINPUT must be set to TRUE in your gfxconf.h
* @pre GINPUT_NEED_MOUSE must be set to TRUE in your gfxconf.h
*
* @{
*/
#ifndef _GINPUT_MOUSE_H
#define _GINPUT_MOUSE_H
#if GINPUT_NEED_MOUSE || defined(__DOXYGEN__)
/*===========================================================================*/
/* Type definitions */
/*===========================================================================*/
/* This type definition is also used by touch */
typedef struct GEventMouse_t {
GEventType type; // The type of this event (GEVENT_MOUSE or GEVENT_TOUCH)
uint16_t instance; // The mouse/touch instance
coord_t x, y, z; // The position of the mouse.
// - For touch devices, Z is the current pressure if supported (otherwise 0)
// - For mice, Z is the 3rd dimension if supported (otherwise 0)
uint16_t current_buttons; // A bit is set if the button is down.
// - For touch only bit 0 is relevant
// - For mice the order of the buttons is (from 0 to n) left, right, middle, any other buttons
// - Bit 15 being set indicates that an important mouse event has been missed.
#define GINPUT_MOUSE_BTN_LEFT 0x0001
#define GINPUT_MOUSE_BTN_RIGHT 0x0002
#define GINPUT_MOUSE_BTN_MIDDLE 0x0004
#define GINPUT_MOUSE_BTN_4 0x0008
#define GINPUT_MISSED_MOUSE_EVENT 0x8000
#define GINPUT_TOUCH_PRESSED GINPUT_MOUSE_BTN_LEFT
uint16_t last_buttons; // The value of current_buttons on the last event
enum GMouseMeta_e {
GMETA_NONE = 0, // There is no meta event currently happening
GMETA_MOUSE_DOWN = 1, // Button 0 has just gone down
GMETA_MOUSE_UP = 2, // Button 0 has just gone up
GMETA_MOUSE_CLICK = 4, // Button 0 has just gone through a short down - up cycle
GMETA_MOUSE_CXTCLICK = 8 // For mice - The right button has just been depressed
// For touch - a long press has just occurred
} meta;
GDisplay * display; // The display this mouse is currently associated with.
} GEventMouse;
// Mouse/Touch Listen Flags - passed to geventAddSourceToListener()
#define GLISTEN_MOUSEMETA 0x0001 // Create events for meta events such as CLICK and CXTCLICK
#define GLISTEN_MOUSEDOWNMOVES 0x0002 // Creates mouse move events when the primary mouse button is down (touch is on the surface)
#define GLISTEN_MOUSEUPMOVES 0x0004 // Creates mouse move events when the primary mouse button is up (touch is off the surface - if the hardware allows).
#define GLISTEN_MOUSENOFILTER 0x0008 // Don't filter out mouse moves where the position hasn't changed.
#define GLISTEN_TOUCHMETA GLISTEN_MOUSEMETA
#define GLISTEN_TOUCHDOWNMOVES GLISTEN_MOUSEDOWNMOVES
#define GLISTEN_TOUCHUPMOVES GLISTEN_MOUSEUPMOVES
#define GLISTEN_TOUCHNOFILTER GLISTEN_MOUSENOFILTER
#define GINPUT_MOUSE_NUM_PORTS 1 // The total number of mouse/touch inputs supported
// Event types for the mouse ginput source
#define GEVENT_MOUSE (GEVENT_GINPUT_FIRST+0)
#define GEVENT_TOUCH (GEVENT_GINPUT_FIRST+1)
/*===========================================================================*/
/* External declarations. */
/*===========================================================================*/
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief Creates an instance of a mouse and returns the Source handler
* @note HACK: if the instance is 9999, it is treated as instance 0 except
* that no calibration will be performed!
*
* @param[in] instance The ID of the mouse input instance (from 0 to 9999)
*
* @return The source handle of the created instance
*/
GSourceHandle ginputGetMouse(uint16_t instance);
/**
* @brief Assign the display associated with the mouse
* @note This only needs to be called if the mouse is associated with a display
* other than the current default display. It must be called before
* @p ginputGetMouse() if the new display is to be used during the calibration
* process. Other than calibration the display is used for range checking,
* and may also be used to display a mouse pointer.
*
* @param[in] instance The ID of the mouse input instance
* @param[in] g The GDisplay to which this mouse belongs
*/
void ginputSetMouseDisplay(uint16_t instance, GDisplay *g);
/**
* @brief Get the display currently associated with the mouse
* @return A pointer to the display
*
* @param[in] instance The ID of the mouse input instance
*/
GDisplay *ginputGetMouseDisplay(uint16_t instance);
/**
* @brief Get the current mouse position and button status
* @note Unlinke a listener event, this status cannot record meta events such as
* "CLICK".
*
* @param[in] instance The ID of the mouse input instance
* @param[in] pmouse The mouse event
*
* @return FALSE on an error (eg. invalid instance)
*/
bool_t ginputGetMouseStatus(uint16_t instance, GEventMouse *pmouse);
/**
* @brief Performs a calibration
*
* @param[in] instance The ID of the mouse input instance
*
* @return FALSE if the driver dosen't support a calibration of if the handle is invalid
*/
bool_t ginputCalibrateMouse(uint16_t instance);
/* Set the routines to save and fetch calibration data.
* This function should be called before first calling ginputGetMouse() for a particular instance
* as the gdispGetMouse() routine may attempt to fetch calibration data and perform a startup calibration if there is no way to get it.
* If this is called after gdispGetMouse() has been called and the driver requires calibration storage, it will immediately save the data is has already obtained.
* The 'requireFree' parameter indicates if the fetch buffer must be free()'d to deallocate the buffer provided by the Fetch routine.
*/
typedef void (*GMouseCalibrationSaveRoutine)(uint16_t instance, const uint8_t *calbuf, size_t sz); // Save calibration data
typedef const char * (*GMouseCalibrationLoadRoutine)(uint16_t instance); // Load calibration data (returns NULL if not data saved)
/**
* @brief Set the routines to store and restore calibration data
*
* @details This function should be called before first calling ginputGetMouse() for a particular instance
* as the gdispGetMouse() routine may attempt to fetch calibration data and perform a startup calibration if there is no way to get it.
* If this is called after gdispGetMouse() has been called and the driver requires calibration storage, it will immediately save the
* data is has already obtained.
*
* @param[in] instance The ID of the mouse input instance
* @param[in] fnsave The routine to save the data
* @param[in] fnload The routine to restore the data
* @param[in] requireFree TRUE if the buffer returned by the load function must be freed by the mouse code.
*/
void ginputSetMouseCalibrationRoutines(uint16_t instance, GMouseCalibrationSaveRoutine fnsave, GMouseCalibrationLoadRoutine fnload, bool_t requireFree);
/**
* @brief Test if a particular mouse/touch instance requires routines to save it's alibration data
* @note Not implemented yet
*
* @param[in] instance The ID of the mouse input instance
*
* @return TRUE if needed
*/
bool_t ginputRequireMouseCalibrationStorage(uint16_t instance);
#ifdef __cplusplus
}
#endif
#endif /* GINPUT_NEED_MOUSE */
#endif /* _GINPUT_MOUSE_H */
/** @} */
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