1 #ifndef _FRAME_H_
2 #define _FRAME_H_ 1
3 #if defined(__cplusplus)
4 extern "C" { 
5 #endif
6 
7 typedef struct Frbox Frbox;
8 typedef struct Frame Frame;
9 
10 enum{
11 	BACK,
12 	HIGH,
13 	BORD,
14 	TEXT,
15 	HTEXT,
16 	NCOL
17 };
18 
19 #define	FRTICKW	3
20 
21 struct Frbox
22 {
23 	long		wid;		/* in pixels */
24 	long		nrune;		/* <0 ==> negate and treat as break char */
25 	uchar	*ptr;
26 	short	bc;	/* break char */
27 	short	minwid;
28 };
29 
30 struct Frame
31 {
32 	Font		*font;		/* of chars in the frame */
33 	Display		*display;	/* on which frame appears */
34 	Image		*b;		/* on which frame appears */
35 	Image		*cols[NCOL];	/* text and background colors */
36 	Rectangle	r;		/* in which text appears */
37 	Rectangle	entire;		/* of full frame */
38 	void			(*scroll)(Frame*, int);	/* scroll function provided by application */
39 	Frbox		*box;
40 	ulong		p0, p1;		/* selection */
41 	ushort		nbox, nalloc;
42 	ushort		maxtab;		/* max size of tab, in pixels */
43 	ushort		nchars;		/* # runes in frame */
44 	ushort		nlines;		/* # lines with text */
45 	ushort		maxlines;	/* total # lines in frame */
46 	ushort		lastlinefull;	/* last line fills frame */
47 	ushort		modified;	/* changed since frselect() */
48 	Image		*tick;	/* typing tick */
49 	Image		*tickback;	/* saved image under tick */
50 	int			ticked;	/* flag: is tick onscreen? */
51 };
52 
53 ulong	frcharofpt(Frame*, Point);
54 Point	frptofchar(Frame*, ulong);
55 int	frdelete(Frame*, ulong, ulong);
56 void	frinsert(Frame*, Rune*, Rune*, ulong);
57 void	frselect(Frame*, Mousectl*);
58 void	frselectpaint(Frame*, Point, Point, Image*);
59 void	frdrawsel(Frame*, Point, ulong, ulong, int);
60 void	frdrawsel0(Frame*, Point, ulong, ulong, Image*, Image*);
61 void	frinit(Frame*, Rectangle, Font*, Image*, Image**);
62 void	frsetrects(Frame*, Rectangle, Image*);
63 void	frclear(Frame*, int);
64 
65 uchar	*_frallocstr(Frame*, unsigned);
66 void	_frinsure(Frame*, int, unsigned);
67 Point	_frdraw(Frame*, Point);
68 void	_frgrowbox(Frame*, int);
69 void	_frfreebox(Frame*, int, int);
70 void	_frmergebox(Frame*, int);
71 void	_frdelbox(Frame*, int, int);
72 void	_frsplitbox(Frame*, int, int);
73 int	_frfindbox(Frame*, int, ulong, ulong);
74 void	_frclosebox(Frame*, int, int);
75 int	_frcanfit(Frame*, Point, Frbox*);
76 void	_frcklinewrap(Frame*, Point*, Frbox*);
77 void	_frcklinewrap0(Frame*, Point*, Frbox*);
78 void	_fradvance(Frame*, Point*, Frbox*);
79 int	_frnewwid(Frame*, Point, Frbox*);
80 int	_frnewwid0(Frame*, Point, Frbox*);
81 void	_frclean(Frame*, Point, int, int);
82 void	_frredraw(Frame*, Point);
83 void	_fraddbox(Frame*, int, int);
84 Point	_frptofcharptb(Frame*, ulong, Point, int);
85 Point	_frptofcharnb(Frame*, ulong, int);
86 int	_frstrlen(Frame*, int);
87 void	frtick(Frame*, Point, int);
88 void	frinittick(Frame*);
89 
90 #define	NRUNE(b)	((b)->nrune<0? 1 : (b)->nrune)
91 #define	NBYTE(b)	strlen((char*)(b)->ptr)
92 #if defined(__cplusplus)
93 }
94 #endif
95 #endif