/*  * This file is part of the UCB release of Plan 9. It is subject to the license * terms in the LICENSE file found in the top-level directory of this * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No * part of the UCB release of Plan 9, including this file, may be copied, * modified, propagated, or distributed except according to the terms contained * in the LICENSE file. */ #pragma	src	"/sys/src/libframe"#pragma	lib	"libframe.a" typedef struct Frbox Frbox;typedef struct Frame Frame; enum{	BACK,	HIGH,	BORD,	TEXT,	HTEXT,	NCOL}; #define	FRTICKW	3 struct Frbox{	long		wid;		/* in pixels */	long		nrune;		/* <0 ==> negate and treat as break char */	union{		uchar	*ptr;		struct{			short	bc;	/* break char */			short	minwid;		};	};}; struct Frame{	Font		*font;		/* of chars in the frame */	Display		*display;	/* on which frame appears */	Image		*b;		/* on which frame appears */	Image		*cols[NCOL];	/* text and background colors */	Rectangle	r;		/* in which text appears */	Rectangle	entire;		/* of full frame */	void			(*scroll)(Frame*, int);	/* scroll function provided by application */	Frbox		*box;	ulong		p0, p1;		/* selection */	ushort		nbox, nalloc;	ushort		maxtab;		/* max size of tab, in pixels */	ushort		nchars;		/* # runes in frame */	ushort		nlines;		/* # lines with text */	ushort		maxlines;	/* total # lines in frame */	ushort		lastlinefull;	/* last line fills frame */	ushort		modified;	/* changed since frselect() */	Image		*tick;	/* typing tick */	Image		*tickback;	/* saved image under tick */	int			ticked;	/* flag: is tick onscreen? */}; ulong	frcharofpt(Frame*, Point);Point	frptofchar(Frame*, ulong);int	frdelete(Frame*, ulong, ulong);void	frinsert(Frame*, Rune*, Rune*, ulong);void	frselect(Frame*, Mousectl*);void	frselectpaint(Frame*, Point, Point, Image*);void	frdrawsel(Frame*, Point, ulong, ulong, int);Point frdrawsel0(Frame*, Point, ulong, ulong, Image*, Image*);void	frinit(Frame*, Rectangle, Font*, Image*, Image**);void	frsetrects(Frame*, Rectangle, Image*);void	frclear(Frame*, int); uchar	*_frallocstr(Frame*, unsigned);void	_frinsure(Frame*, int, unsigned);Point	_frdraw(Frame*, Point);void	_frgrowbox(Frame*, int);void	_frfreebox(Frame*, int, int);void	_frmergebox(Frame*, int);void	_frdelbox(Frame*, int, int);void	_frsplitbox(Frame*, int, int);int	_frfindbox(Frame*, int, ulong, ulong);void	_frclosebox(Frame*, int, int);int	_frcanfit(Frame*, Point, Frbox*);void	_frcklinewrap(Frame*, Point*, Frbox*);void	_frcklinewrap0(Frame*, Point*, Frbox*);void	_fradvance(Frame*, Point*, Frbox*);int	_frnewwid(Frame*, Point, Frbox*);int	_frnewwid0(Frame*, Point, Frbox*);void	_frclean(Frame*, Point, int, int);void	_frdrawtext(Frame*, Point, Image*, Image*);void	_fraddbox(Frame*, int, int);Point	_frptofcharptb(Frame*, ulong, Point, int);Point	_frptofcharnb(Frame*, ulong, int);int	_frstrlen(Frame*, int);void	frtick(Frame*, Point, int);void	frinittick(Frame*);void	frredraw(Frame*); #define	NRUNE(b)	((b)->nrune<0? 1 : (b)->nrune)#define	NBYTE(b)	strlen((char*)(b)->ptr)