1 #ifndef _FRAME_H_
2 #define _FRAME_H_ 1
3 #if defined(__cplusplus)
4 extern "C" {
5 #endif
6 
7 AUTOLIB(frame)
8 
9 typedef struct Frbox Frbox;
10 typedef struct Frame Frame;
11 
12 enum{
13 	BACK,
14 	HIGH,
15 	BORD,
16 	TEXT,
17 	HTEXT,
18 	NCOL
19 };
20 
21 #define	FRTICKW	3
22 struct Frbox
23 {
24 	long		wid;		/* in pixels */
25 	long		nrune;		/* <0 ==> negate and treat as break char */
26 	uchar	*ptr;
27 	short	bc;	/* break char */
28 	short	minwid;
29 };
30 
31 struct Frame
32 {
33 	Font		*font;		/* of chars in the frame */
34 	Display		*display;	/* on which frame appears */
35 	Image		*b;		/* on which frame appears */
36 	Image		*cols[NCOL];	/* text and background colors */
37 	Rectangle	r;		/* in which text appears */
38 	Rectangle	entire;		/* of full frame */
39 	void			(*scroll)(Frame*, int);	/* scroll function provided by application */
40 	Frbox		*box;
41 	ulong		p0, p1;		/* selection */
42 	ushort		nbox, nalloc;
43 	ushort		maxtab;		/* max size of tab, in pixels */
44 	ushort		nchars;		/* # runes in frame */
45 	ushort		nlines;		/* # lines with text */
46 	ushort		maxlines;	/* total # lines in frame */
47 	ushort		lastlinefull;	/* last line fills frame */
48 	ushort		modified;	/* changed since frselect() */
49 	Image		*tick;	/* typing tick */
50 	Image		*tickback;	/* saved image under tick */
51 	int			ticked;	/* flag: is tick onscreen? */
52 	int			noredraw;	/* don't draw on the screen */
53 	int			tickscale;	/* tick scaling factor */
54 };
55 
56 ulong	frcharofpt(Frame*, Point);
57 Point	frptofchar(Frame*, ulong);
58 int	frdelete(Frame*, ulong, ulong);
59 void	frinsert(Frame*, Rune*, Rune*, ulong);
60 void	frselect(Frame*, Mousectl*);
61 void	frselectpaint(Frame*, Point, Point, Image*);
62 void	frdrawsel(Frame*, Point, ulong, ulong, int);
63 Point	frdrawsel0(Frame*, Point, ulong, ulong, Image*, Image*);
64 void	frinit(Frame*, Rectangle, Font*, Image*, Image**);
65 void	frsetrects(Frame*, Rectangle, Image*);
66 void	frclear(Frame*, int);
67 void	frredraw(Frame*);
68 
69 uchar	*_frallocstr(Frame*, unsigned);
70 void	_frinsure(Frame*, int, unsigned);
71 Point	_frdraw(Frame*, Point);
72 void	_frgrowbox(Frame*, int);
73 void	_frfreebox(Frame*, int, int);
74 void	_frmergebox(Frame*, int);
75 void	_frdelbox(Frame*, int, int);
76 void	_frsplitbox(Frame*, int, int);
77 int	_frfindbox(Frame*, int, ulong, ulong);
78 void	_frclosebox(Frame*, int, int);
79 int	_frcanfit(Frame*, Point, Frbox*);
80 void	_frcklinewrap(Frame*, Point*, Frbox*);
81 void	_frcklinewrap0(Frame*, Point*, Frbox*);
82 void	_fradvance(Frame*, Point*, Frbox*);
83 int	_frnewwid(Frame*, Point, Frbox*);
84 int	_frnewwid0(Frame*, Point, Frbox*);
85 void	_frclean(Frame*, Point, int, int);
86 void	_frdrawtext(Frame*, Point, Image*, Image*);
87 void	_fraddbox(Frame*, int, int);
88 Point	_frptofcharptb(Frame*, ulong, Point, int);
89 Point	_frptofcharnb(Frame*, ulong, int);
90 int	_frstrlen(Frame*, int);
91 void	frtick(Frame*, Point, int);
92 void	frinittick(Frame*);
93 
94 #define	NRUNE(b)	((b)->nrune<0? 1 : (b)->nrune)
95 #define	NBYTE(b)	strlen((char*)(b)->ptr)
96 #if defined(__cplusplus)
97 }
98 #endif
99 #endif