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/* See LICENSE for license details. */
/* Arbitrary sizes */
#define UTF_SIZ 4
/* macros */
#define MIN(a, b) ((a) < (b) ? (a) : (b))
#define MAX(a, b) ((a) < (b) ? (b) : (a))
#define LEN(a) (sizeof(a) / sizeof(a)[0])
#define BETWEEN(x, a, b) ((a) <= (x) && (x) <= (b))
#define DIVCEIL(n, d) (((n) + ((d) - 1)) / (d))
#define DEFAULT(a, b) (a) = (a) ? (a) : (b)
#define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x)
#define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || \
(a).bg != (b).bg)
#define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + \
(t1.tv_nsec-t2.tv_nsec)/1E6)
#define MODBIT(x, set, bit) ((set) ? ((x) |= (bit)) : ((x) &= ~(bit)))
#define TRUECOLOR(r,g,b) (1 << 24 | (r) << 16 | (g) << 8 | (b))
#define IS_TRUECOL(x) (1 << 24 & (x))
enum glyph_attribute {
ATTR_NULL = 0,
ATTR_BOLD = 1 << 0,
ATTR_FAINT = 1 << 1,
ATTR_ITALIC = 1 << 2,
ATTR_UNDERLINE = 1 << 3,
ATTR_BLINK = 1 << 4,
ATTR_REVERSE = 1 << 5,
ATTR_INVISIBLE = 1 << 6,
ATTR_STRUCK = 1 << 7,
ATTR_WRAP = 1 << 8,
ATTR_WIDE = 1 << 9,
ATTR_WDUMMY = 1 << 10,
ATTR_BOLD_FAINT = ATTR_BOLD | ATTR_FAINT,
};
enum selection_mode {
SEL_IDLE = 0,
SEL_EMPTY = 1,
SEL_READY = 2
};
enum selection_type {
SEL_REGULAR = 1,
SEL_RECTANGULAR = 2
};
enum selection_snap {
SNAP_WORD = 1,
SNAP_LINE = 2
};
typedef unsigned char uchar;
typedef unsigned int uint;
typedef unsigned long ulong;
typedef unsigned short ushort;
typedef uint_least32_t Rune;
#define Glyph Glyph_
typedef struct {
Rune u; /* character code */
ushort mode; /* attribute flags */
uint32_t fg; /* foreground */
uint32_t bg; /* background */
} Glyph;
typedef Glyph *Line;
typedef struct {
Glyph attr; /* current char attributes */
int x;
int y;
char state;
} TCursor;
/* Internal representation of the screen */
typedef struct {
int row; /* nb row */
int col; /* nb col */
Line *line; /* screen */
Line *alt; /* alternate screen */
int *dirty; /* dirtyness of lines */
TCursor c; /* cursor */
int ocx; /* old cursor col */
int ocy; /* old cursor row */
int top; /* top scroll limit */
int bot; /* bottom scroll limit */
int mode; /* terminal mode flags */
int esc; /* escape state flags */
char trantbl[4]; /* charset table translation */
int charset; /* current charset */
int icharset; /* selected charset for sequence */
int *tabs;
} Term;
/* Purely graphic info */
typedef struct {
int tw, th; /* tty width and height */
int w, h; /* window width and height */
int ch; /* char height */
int cw; /* char width */
int mode; /* window state/mode flags */
int cursor; /* cursor style */
} TermWindow;
typedef struct {
int mode;
int type;
int snap;
/*
* Selection variables:
* nb – normalized coordinates of the beginning of the selection
* ne – normalized coordinates of the end of the selection
* ob – original coordinates of the beginning of the selection
* oe – original coordinates of the end of the selection
*/
struct {
int x, y;
} nb, ne, ob, oe;
int alt;
} Selection;
typedef union {
int i;
uint ui;
float f;
const void *v;
} Arg;
void die(const char *, ...);
void redraw(void);
void draw(void);
void iso14755(const Arg *);
void printscreen(const Arg *);
void printsel(const Arg *);
void sendbreak(const Arg *);
void toggleprinter(const Arg *);
int tattrset(int);
void tnew(int, int);
void tresize(int, int);
void tsetdirtattr(int);
void ttynew(char *, char *, char **);
size_t ttyread(void);
void ttyresize(int, int);
void ttywrite(const char *, size_t, int);
void resettitle(void);
void selclear(void);
void selinit(void);
void selstart(int, int, int);
void selextend(int, int, int, int);
void selnormalize(void);
int selected(int, int);
char *getsel(void);
size_t utf8decode(const char *, Rune *, size_t);
size_t utf8encode(Rune, char *);
void *xmalloc(size_t);
void *xrealloc(void *, size_t);
char *xstrdup(char *);
/* Globals */
extern Term term;
extern int cmdfd;
extern pid_t pid;
extern int oldbutton;
/* config.h globals */
extern char *shell;
extern char *utmp;
extern char *stty_args;
extern char *vtiden;
extern char *worddelimiters;
extern int allowaltscreen;
extern char *termname;
extern unsigned int tabspaces;
extern unsigned int defaultfg;
extern unsigned int defaultbg;
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