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/* Copyright (c) 1992 AT&T - All rights reserved. */
#pragma src "/sys/src/libframe"
#pragma lib "libframe.a"
typedef struct Frbox Frbox;
typedef struct Frame Frame;
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;
}b;
}a;
};
struct Frame
{
Font *font; /* of chars in the frame */
Bitmap *b; /* on which frame appears */
Rectangle r; /* in which text appears */
Rectangle entire; /* of full frame */
Frbox *box;
ulong p0, p1; /* selection */
short left; /* left edge of text */
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() */
};
ulong frcharofpt(Frame*, Point);
Point frptofchar(Frame*, ulong);
int frdelete(Frame*, ulong, ulong);
void frinsert(Frame*, Rune*, Rune*, ulong);
void frselect(Frame*, Mouse*);
void frselectp(Frame*, Fcode);
void frselectf(Frame*, Point, Point, Fcode);
void frinit(Frame*, Rectangle, Font*, Bitmap*);
void frsetrects(Frame*, Rectangle, Bitmap*);
void frclear(Frame*);
void frgetmouse(void);
uchar *_frallocstr(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*);
void _frclean(Frame*, Point, int, int);
void _frredraw(Frame*, Point);
void _fraddbox(Frame*, int, int);
Point _frptofcharptb(Frame*, ulong, Point, int);
Point _frptofcharnb(Frame*, ulong, int);
int _frstrlen(Frame*, int);
#define NRUNE(b) ((b)->nrune<0? 1 : (b)->nrune)
#define NBYTE(b) strlen((char*)(b)->a.ptr)
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