/* $XConsortium: sin_cvs.h,v 5.2 94/04/17 20:42:04 rws Exp $ */

/***********************************************************

Copyright (c) 1989, 1990, 1991  X Consortium

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Copyright 1989, 1990, 1991 by Sun Microsystems, Inc. 

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******************************************************************/

#ifndef SIN_CVS_H_INCLUDED
#define SIN_CVS_H_INCLUDED

/* Types and declarations for the Sin event and window device table. */

/* Each device can have this many triggers associated with it. */
#define SIN_MAX_DEV_TRIGGERS	10

/* Maximum number of devices of any one class. */
#define SIN_NUM_DEV_NUMS	5
#define SIN_NUM_DEV_CLASSES	6

typedef enum {
    SIN_NULL_TRIGGER		= 0,
    SIN_KEY_PRESS		= 1,
    SIN_KEY_RELEASE		= 2,
    SIN_BUTTON_1_PRESS		= 3,
    SIN_BUTTON_2_PRESS		= 4,
    SIN_BUTTON_3_PRESS		= 5,
    SIN_BUTTON_4_PRESS		= 6,
    SIN_BUTTON_5_PRESS		= 7,
    SIN_BUTTON_1_RELEASE	= 8,
    SIN_BUTTON_2_RELEASE	= 9,
    SIN_BUTTON_3_RELEASE	= 10,
    SIN_BUTTON_4_RELEASE	= 11,
    SIN_BUTTON_5_RELEASE	= 12,
    SIN_PTR_MOVE		= 13,
    SIN_PTR_DRAG		= 14,
    SIN_WIN_ENTER		= 15,
    SIN_WIN_EXIT		= 16,

    SIN_MAX_TRIG_CODE		= 17
} Sin_trig_code;

#define SIN_SHIFT_DOWN	(1L<<0)
#define SIN_CTRL_DOWN	(1L<<1)
#define SIN_BUTTON_DOWN	(1L<<2)
#define SIN_KEY_DOWN	(1L<<3)

typedef struct {
    Sin_trig_code	trigger;
    Sin_window_pt	pt;
    int			keycode;
    unsigned int	flags;
    XEvent		*xevent;
} Sin_cvs_event;

typedef enum {
    SIN_ECHO_DYNAMIC,
    SIN_ECHO_ADD_POINT,
    SIN_ECHO_DELETE_POINT,
    SIN_ECHO_ALL_POINTS
} Sin_stroke_echo_op;

typedef struct {
    int			count;
    int			max_count;
    int			size;	/* Current byte size of "data" area below */
    int			pos;
    union {
	int		ivalue;
	Sin_window_pt	pt;
	Sin_window_pt	*pts;
    } 			data;
} Sin_measure;

typedef enum {
    SIN_EVT_NONE,
    SIN_EVT_STARTED,
    SIN_EVT_DONE,
    SIN_EVT_BREAK
} Sin_event_state;

typedef Sin_trig_code	Sin_trig_list[SIN_MAX_DEV_TRIGGERS+1];

typedef struct {
    int			enabled;
    Sin_event_state	evt_state;
    Sin_measure		*measure;
    Sin_input_device	*sin_dev;
    GC			gc;		/* X graphics context, for echoing */
    void		(*activate)();
    void		(*deactivate)();
    void		(*sample)();
    Sin_trig_list	triggers;
} Dev_data;

typedef struct Sin_trig_op {
    void		(*evt_func)();
    Dev_data		*dev_data;
    struct Sin_trig_op	*next;
} Sin_trig_op;

typedef struct {
    Sin_trig_code	code;
    Sin_trig_op		*ops;
} Sin_trig_data;

typedef struct Sin_window_table {
    struct _Sin_input_ws	*ws;
    Sin_trig_data		trigs[SIN_MAX_TRIG_CODE];
    /* TODO: Make dev_table non-fixed size and only as big as needed. */
    Dev_data		dev_table[SIN_NUM_DEV_CLASSES][SIN_NUM_DEV_NUMS];
} Sin_window_table;

#define SIN_DEVICE_CANVAS_TABLE( _dev ) \
    (_dev)->ws->window_table

#define DEVICE_DATA( _cvs_tbl, _class, _devno ) \
    (&(_cvs_tbl)->dev_table[SIN_CLASS_INDEX((_class))][(_devno) - 1])

#define EVENT_IS_BUTTON( _e ) \
    (  (int)(_e)->trigger >= (int)SIN_BUTTON_1_PRESS \
    && (int)(_e)->trigger <= (int)SIN_BUTTON_5_RELEASE )

#define BUTTON_IS_DOWN( _e ) \
    ((_e)->flags & SIN_BUTTON_DOWN)

#define EVENT_SHIFT_IS_DOWN( _e ) \
    ((_e)->flags & SIN_SHIFT_DOWN)

#define EVENT_CTRL_IS_DOWN( _e ) \
    ((_e)->flags & SIN_CTRL_DOWN)

#endif