1 typedef struct Frbox Frbox;
2 typedef struct Frame Frame;
3 
4 enum{
5 	BACK,
6 	HIGH,
7 	BORD,
8 	TEXT,
9 	HTEXT,
10 	NCOL
11 };
12 
13 #define	FRTICKW	3
14 
15 struct Frbox
16 {
17 	long		wid;		/* in pixels */
18 	long		nrune;		/* <0 ==> negate and treat as break char */
19 	uchar	*ptr;
20 	short	bc;	/* break char */
21 	short	minwid;
22 };
23 
24 struct Frame
25 {
26 	Font		*font;		/* of chars in the frame */
27 	Display		*display;	/* on which frame appears */
28 	Image		*b;		/* on which frame appears */
29 	Image		*cols[NCOL];	/* text and background colors */
30 	Rectangle	r;		/* in which text appears */
31 	Rectangle	entire;		/* of full frame */
32 	void			(*scroll)(Frame*, int);	/* scroll function provided by application */
33 	Frbox		*box;
34 	ulong		p0, p1;		/* selection */
35 	ushort		nbox, nalloc;
36 	ushort		maxtab;		/* max size of tab, in pixels */
37 	ushort		nchars;		/* # runes in frame */
38 	ushort		nlines;		/* # lines with text */
39 	ushort		maxlines;	/* total # lines in frame */
40 	ushort		lastlinefull;	/* last line fills frame */
41 	ushort		modified;	/* changed since frselect() */
42 	Image		*tick;	/* typing tick */
43 	Image		*tickback;	/* saved image under tick */
44 	int			ticked;	/* flag: is tick onscreen? */
45 };
46 
47 ulong	frcharofpt(Frame*, Point);
48 Point	frptofchar(Frame*, ulong);
49 int	frdelete(Frame*, ulong, ulong);
50 void	frinsert(Frame*, Rune*, Rune*, ulong);
51 void	frselect(Frame*, Mousectl*);
52 void	frselectpaint(Frame*, Point, Point, Image*);
53 void	frdrawsel(Frame*, Point, ulong, ulong, int);
54 void	frdrawsel0(Frame*, Point, ulong, ulong, Image*, Image*);
55 void	frinit(Frame*, Rectangle, Font*, Image*, Image**);
56 void	frsetrects(Frame*, Rectangle, Image*);
57 void	frclear(Frame*, int);
58 
59 uchar	*_frallocstr(Frame*, unsigned);
60 void	_frinsure(Frame*, int, unsigned);
61 Point	_frdraw(Frame*, Point);
62 void	_frgrowbox(Frame*, int);
63 void	_frfreebox(Frame*, int, int);
64 void	_frmergebox(Frame*, int);
65 void	_frdelbox(Frame*, int, int);
66 void	_frsplitbox(Frame*, int, int);
67 int	_frfindbox(Frame*, int, ulong, ulong);
68 void	_frclosebox(Frame*, int, int);
69 int	_frcanfit(Frame*, Point, Frbox*);
70 void	_frcklinewrap(Frame*, Point*, Frbox*);
71 void	_frcklinewrap0(Frame*, Point*, Frbox*);
72 void	_fradvance(Frame*, Point*, Frbox*);
73 int	_frnewwid(Frame*, Point, Frbox*);
74 int	_frnewwid0(Frame*, Point, Frbox*);
75 void	_frclean(Frame*, Point, int, int);
76 void	_frredraw(Frame*, Point);
77 void	_fraddbox(Frame*, int, int);
78 Point	_frptofcharptb(Frame*, ulong, Point, int);
79 Point	_frptofcharnb(Frame*, ulong, int);
80 int	_frstrlen(Frame*, int);
81 void	frtick(Frame*, Point, int);
82 void	frinittick(Frame*);
83 
84 #define	NRUNE(b)	((b)->nrune<0? 1 : (b)->nrune)
85 #define	NBYTE(b)	strlen((char*)(b)->ptr)