#sccs	"@(#)uts/kern/sys:wd.h	1.2"
/*
	Unix Window System
	Common Definitions and Structures
 */

#ifndef WD_H
#define WD_H

#include "sys/param.h"
#include "sys/iohw.h"
#include "sys/font.h"
#include "sys/window.h"

/* Cursor Params							*/
#define CURONTICKS	(HZ/2)		/* cursor on time		*/
#define CUROFFTICKS	(HZ/4)		/* cursor off time		*/
#define CURFAIRCNT	2		/* fairness count (see wd.c)	*/
#define CURFAIRTICKS	(HZ/4)		/* fairness on time (see wd.c)	*/

/* Clicks								*/
#define btopxc(x)	(((int)(x)+1) & (~1))

/* ansi interpreter states						*/
#define	NORM		0		/* normal characters		*/
#define ESC		1		/* received ESC (0x1b)		*/
#define CSI		2		/* received CSI (ESC [)		*/
#define PARAM		3		/* parsing parm string		*/
#define TRUNC		4		/* truncating a long line	*/

/* ansi flags								*/
#define ANOWRAP		0x1		/* truncate, don't wrap		*/
#define ALASTLF		0x2		/* last control char was nl	*/
#define ACUROFF		0x4		/* cursor off, don't blink	*/

/* ansi attributes							*/
#define ATTRNORM	0x0		/* no attributes		*/
#define ATTRUNDER	A_UNDERLINE	/* underlined			*/
#define ATTRREV		A_REVERSE	/* inverse video		*/
#define ATTRBOLD	A_BOLD		/* bold (one to left)		*/
#define ATTRSTRIKE	A_STRIKE	/* strike-out			*/
#define ATTRDIM		A_DIM		/* dim (and'ed with half-tone	*/

/* other ansi parameters						*/
#define NAPARAM		16		/* max number of parameters	*/
#define UNDLRATIO	12		/* undline thickness = vs/this	*/
#define STRKRATIO	2		/* strkline row = baseline/this	*/

/* system patterns							*/
#define PATBLACK	0		/* all black			*/
#define PATWHITE	1		/* all white			*/
#define PATGRAY		2		/* half-tone			*/
#define PATLTGRAY	3		/* quarter-tone			*/
#define PATDKGRAY	4		/* reverse semi 1/4 tone	*/

#define PATBGROUND	PATLTGRAY	/* background			*/
#define PATFGROUND	PATBLACK	/* foreground			*/
#define PATCURSE	PATWHITE	/* cursor pattern		*/

/* border parameters							*/
#define BORDTOP		20
#define BORDBOT		20
#define BORDLEFT	6
#define BORDRIGHT	28

/* w_flags								*/
#define WDOPEN	 	0x01		/* opened			*/
#define WDINIT		0x02		/* inited			*/
#define WOLGC		0x04		/* garbage collection flags	*/
#define	WGCSKIP		0x08		/*	"			*/
#define WDWRITE		0x10		/* writing			*/
#define WDESC		0x20		/* double esc flag		*/
                                               
/* Generic Rectangle							*/
struct recdef
{
	unsigned short	rec_ulx;	/* upper-left x			*/
 	unsigned short	rec_uly;	/* upper-left y			*/
	unsigned short	rec_lrx;	/* lower-right x (exclusive)	*/
	unsigned short	rec_lry;	/* lower-right y (exclusive)	*/
};

typedef int		(*fint)();

/* Window Structure							*/
struct windef
{
	struct	recdef	w_rec;		/* window dimensions		*/
	struct	recdef	w_inrec;	/* rectangle inside borders	*/
	struct	oldef	*w_ol;		/* obscured list		*/
	struct	windef	*w_back;	/* window behind this one	*/
	struct	windef	*w_front;	/* window in front of this one	*/
	struct	windef	*w_parent;	/* parent window		*/
	struct	tty	*w_tp;		/* window teletype pointer	*/
	struct	windef	*w_outlist;	/* list of windows with output	*/
	char		w_flags;	/* window status flags		*/
	unsigned short	w_uflags;	/* user settable flags		*/
	unsigned char	w_hs;		/* horizonal spacing		*/
	unsigned char	w_vs;		/* vertical spacing		*/
	unsigned char	w_baseline;	/* baseline			*/
	struct	wfont	*w_font[8];	/* window font ptrs		*/
	char		w_astate;	/* ansi parser state		*/
	char		w_iparam;	/* parameter index		*/
	char		w_nparam;	/* parameter count		*/
	short		w_aparam[NAPARAM];/* parameters			*/
	fint		*w_adisp;	/* ptr to dispatch table	*/
	unsigned char	w_aflags;	/* ansi flags			*/
	unsigned char	w_attr;		/* current attributes		*/
	unsigned short	w_cx;		/* current x (relative to wdw)	*/
	unsigned short	w_cy;		/* current y			*/
	struct	fntdef	*w_cff;		/* ptr to current fntdef	*/
	char		w_mflags;	/* mouse flags			*/
	struct icon	w_micon;	/* mouse icon			*/
	struct recdef	w_mrec;		/* mouse motion rectangle	*/
	char		*w_text[WTXTNUM];/* window text pointers	*/
};

/* Obscured Rectangle							*/
struct oldef
{
	struct	recdef	ol_rec;		/* dimensions of obs. on screen	*/
	struct	windef	*ol_lobs;	/* ptr to frontmost wp		*/
	struct	oldef	*ol_next;	/* next oldef in a chain	*/
	struct	oldef	*ol_last;	/* prev oldef in a chain	*/
	short		*ol_base;	/* ptr to pixels		*/
	short		ol_width;	/* bytes wide of pixel map 	*/
};

/* display list item (used in wrastop())				*/
struct dldef {
	struct recdef dl_rec;		/* size of display bitmap	*/
	struct dldef *dl_next;		/* next item			*/
	struct oldef *dl_ol;		/* ol containing pixels		*/
};

#endif WD_H