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/*

 * Project: S.Ha.R.K.

 *

 * Coordinators:

 *   Giorgio Buttazzo    <giorgio@sssup.it>

 *   Paolo Gai           <pj@gandalf.sssup.it>

 *

 * Authors     :

 *   Paolo Gai           <pj@gandalf.sssup.it>

 *   Massimiliano Giorgi <massy@gandalf.sssup.it>

 *   Luca Abeni          <luca@gandalf.sssup.it>

 *   Mauro Marinoni      <mauro.marinoni@unipv.it>

 *

 *

 * ReTiS Lab (Scuola Superiore S.Anna - Pisa - Italy)

 *

 * http://www.sssup.it

 * http://retis.sssup.it

 * http://shark.sssup.it

 */

/* Glue Layer Header Linux Input Driver*/

#ifndef __SHARK_MOUSE26_H__

#define __SHARK_MOUSE26_H__

#include <kernel/const.h>

#include <kernel/model.h>

#ifdef __cplusplus

extern "C" {

#endif

/* mouse buttons constant */  

#define MOUSE_RBUTT     1

#define MOUSE_CBUTT     2

#define MOUSE_LBUTT     4

/* the mouse event struct */

typedef struct {

        int x, y, z;            /* mouse position */

        int dx, dy, dz;         /* distance covered by mouse */

        unsigned long buttons;  /* buttons flags */

} MOUSE_EVT;

/* macros to test mouse buttons */

#define isLeftButton(b)         ((b) & MOUSE_LBUTT)

#define isRightButton(b)        ((b) & MOUSE_RBUTT)

#define isCentralButton(b)      ((b) & MOUSE_CBUTT)

/*

 * mouse initialization

 */

/* the MOUSE_PARMS structure used by MOUSE26_init() */

typedef struct mouse_parms {

        TASK_MODEL *tm;

        int x0, y0, z0;

        int xmin;

        int ymin;

        int xmax;

        int ymax;

        int threshold;

} MOUSE_PARMS;

#define MOUSE_DEFAULT (DWORD)-1

/* the default values for the MOUSE_PARMS structure */

#define BASE_MOUSE {(TASK_MODEL *)MOUSE_DEFAULT, \

                    (int)MOUSE_DEFAULT, \

                    (int)MOUSE_DEFAULT, \

                    (int)MOUSE_DEFAULT, \

                    (int)MOUSE_DEFAULT, \

                    (int)MOUSE_DEFAULT, \

                    (int)MOUSE_DEFAULT, \

                    (int)MOUSE_DEFAULT, \

                    (int)MOUSE_DEFAULT}

/* to change the MOUSE_PARMS struct */

#define mouse_default_parms(s)  (s).tm = (TASK_MODEL *)MOUSE_DEFAULT, \

                                (s).x0 = (int)MOUSE_DEFAULT, \

                                (s).y0 = (int)MOUSE_DEFAULT, \

                                (s).z0 = (int)MOUSE_DEFAULT, \

                                (s).xmin = (int)MOUSE_DEFAULT, \

                                (s).xmax = (int)MOUSE_DEFAULT, \

                                (s).ymin = (int)MOUSE_DEFAULT, \

                                (s).ymax = (int)MOUSE_DEFAULT, \

                                (s).threshold = (int)MOUSE_DEFAULT

#define mouse_def_task(s,m)     (s).tm = (TASK_MODEL *)(m)

#define mouse_def_threshold(s,v)        (s).threshold = (v)

#define mouse_def_xmin(s,v)     (s).xmin = (v)

#define mouse_def_ymin(s,v)     (s).ymin = (v)

#define mouse_def_xmax(s,v)     (s).xmax = (v)

#define mouse_def_ymax(s,v)     (s).ymax = (v)

#define mouse_def_x0(s,v)       (s).x0 = (v)

#define mouse_def_y0(s,v)       (s).y0 = (v)

#define mouse_def_z0(s,v)       (s).y0 = (v)

/* user mouse handler */

typedef void (*MOUSE_HANDLER)(MOUSE_EVT*);

/*

 * user mouse interface

 */

int  MOUSE26_installed(void);

int  MOUSE26_init(MOUSE_PARMS *s);

int  MOUSE26_close(void);

void mouse_enable(void);

void mouse_disable(void);

void mouse_getposition(int *x, int *y, int *z, unsigned long *buttons);

void mouse_setposition(int  x, int  y, int z);

void mouse_getlimits(int *xmin, int *ymin, int *xmax, int *ymax);

int  mouse_setlimits(int  xmin, int  ymin, int  xmax, int  ymax);

int  mouse_getthreshold(void);

int  mouse_setthreshold(int t);

void mouse_hook(MOUSE_HANDLER h);

/*

 *

 * mouse autocursor management

 *

 */

/* commands for mouse_grxcursor() & mouse_txtcursor() */

#define DISABLE   0x00

#define ENABLE    0x01

/* flags for mouse_grxcursor() & mouse_txtcursor() (to use with '|') */

#define WITHOUTSEM 0x10

#define AUTOOFF    0x20

/* mask to extrac the status from autocursormode */

#define STATUSMASK 0x0f

/* flags for autocursormode (there are some other flags into mouse.h) */

#define GRXCURSOR 0x100

#define TXTCURSOR 0x200

/* dimensions of the grx shape */

#define MOUSESHAPEDX 16

#define MOUSESHAPEDY 16

/* hot-spot of the grx image (coordinates of the center's shape, zero-based) */

#define MOUSEHOTSPOTX 3

#define MOUSEHOTSPOTY 1

/* those macros can be used to set the correct mouse_limit() when

 * the graphics autocursor is enable (to avoid wrong shape position because

 * there is not graphics clip functions)

 */

#define XMINLIMIT(dimx,dimy) (MOUSEHOTSPOTX)

#define XMAXLIMIT(dimx,dimy) ((dimx)-MOUSESHAPEDX+MOUSEHOTSPOTX)

#define YMINLIMIT(dimx,dimy) (MOUSEHOTSPOTY)

#define YMAXLIMIT(dimx,dimy) ((dimy)-MOUSESHAPEDY+MOUSEHOTSPOTY)

#define mouse_grxlimits(dimx,dimy) mouse_setlimits(\

        XMINLIMIT(dimx,dimy), \

        YMINLIMIT(dimx,dimy), \

        XMAXLIMIT(dimx,dimy), \

        YMAXLIMIT(dimx,dimy)  \

)

/* these are used to select the mouse shape */

int mouse_txtshape(DWORD img);

int mouse_grxshape(BYTE *shape, BYTE *mask, int bpp_in);

/* enable/disable mouse pointer */

/* (return <0 on error) */

/* (for the cmd parameter see above) */

int mouse_grxcursor(int cmd, int bpp);

int mouse_txtcursor(int cmd);

/* mouse on/off (or show/hide) */

void (*mouse_on)(void);

void (*mouse_off)(void);

#ifdef __cplusplus

};

#endif

#endif