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#include <u.h>
#include <libc.h>
#include <ctype.h>
#include <draw.h>
#include <thread.h>
#include <mouse.h>
#include <cursor.h>
#include <keyboard.h>
#include <frame.h>
#include <plumb.h>
#include <termios.h>
#define fatal sysfatal
typedef struct Text Text;
typedef struct Readbuf Readbuf;
enum
{
/* these are chosen to use malloc()'s properties well */
HiWater = 640000, /* max size of history */
LoWater = 330000, /* min size of history after max'ed */
};
/* various geometric paramters */
enum
{
Scrollwid = 12, /* width of scroll bar */
Scrollgap = 4, /* gap right of scroll bar */
Maxtab = 4,
};
enum
{
Cut,
Paste,
Snarf,
Send,
Scroll,
Plumb,
};
#define SCROLLKEY Kdown
#define ESC 0x1B
#define CUT 0x18 /* ctrl-x */
#define COPY 0x03 /* crtl-c */
#define PASTE 0x16 /* crtl-v */
#define BACKSCROLLKEY Kup
#define READBUFSIZE 8192
struct Text
{
Frame *f; /* frame ofr terminal */
Mouse m;
uint nr; /* num of runes in term */
Rune *r; /* runes for term */
uint nraw; /* num of runes in raw buffer */
Rune *raw; /* raw buffer */
uint org; /* first rune on the screen */
uint q0; /* start of selection region */
uint q1; /* end of selection region */
uint qh; /* unix point */
int npart; /* partial runes read from console */
char part[UTFmax];
int nsnarf; /* snarf buffer */
Rune *snarf;
};
struct Readbuf
{
short n; /* # bytes in buf */
uchar data[READBUFSIZE]; /* data bytes */
};
void mouse(void);
void domenu2(int);
void loop(void);
void geom(void);
void fill(void);
void tcheck(void);
void updatesel(void);
void doreshape(void);
void rcstart(int fd[2]);
void runewrite(Rune*, int);
void consread(void);
void conswrite(char*, int);
int bswidth(Rune c);
void cut(void);
void paste(Rune*, int, int);
void snarfupdate(void);
void snarf(void);
void show(uint);
void key(Rune);
void setorigin(uint org, int exact);
uint line2q(uint);
uint backnl(uint, uint);
int cansee(uint);
uint backnl(uint, uint);
void addraw(Rune*, int);
void mselect(void);
void doubleclick(uint *q0, uint *q1);
int clickmatch(int cl, int cr, int dir, uint *q);
Rune *strrune(Rune *s, Rune c);
int consready(void);
Rectangle scrpos(Rectangle r, ulong p0, ulong p1, ulong tot);
void scrdraw(void);
void scroll(int);
void hostproc(void *arg);
void hoststart(void);
void getchildwd(int, char*, int);
void plumbstart(void);
void plumb(uint, uint);
void plumbclick(uint*, uint*);
int getpts(int fd[], char *slave);
#define runemalloc(n) malloc((n)*sizeof(Rune))
#define runerealloc(a, n) realloc(a, (n)*sizeof(Rune))
#define runemove(a, b, n) memmove(a, b, (n)*sizeof(Rune))
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