st.h

   1 /* See LICENSE for license details. */
   2
   3 /* Arbitrary sizes */
   4 #define UTF_SIZ       4
   5
   6 /* macros */
   7 #define MIN(a, b)               ((a) < (b) ? (a) : (b))
   8 #define MAX(a, b)               ((a) < (b) ? (b) : (a))
   9 #define LEN(a)                  (sizeof(a) / sizeof(a)[0])
  10 #define BETWEEN(x, a, b)        ((a) <= (x) && (x) <= (b))
  11 #define DIVCEIL(n, d)           (((n) + ((d) - 1)) / (d))
  12 #define DEFAULT(a, b)           (a) = (a) ? (a) : (b)
  13 #define LIMIT(x, a, b)          (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x)
  14 #define ATTRCMP(a, b)           ((a).mode != (b).mode || (a).fg != (b).fg || \
  15                                 (a).bg != (b).bg)
  16 #define IS_SET(flag)            ((term.mode & (flag)) != 0)
  17 #define TIMEDIFF(t1, t2)        ((t1.tv_sec-t2.tv_sec)*1000 + \
  18                                 (t1.tv_nsec-t2.tv_nsec)/1E6)
  19 #define MODBIT(x, set, bit)     ((set) ? ((x) |= (bit)) : ((x) &= ~(bit)))
  20
  21 #define TRUECOLOR(r,g,b)        (1 << 24 | (r) << 16 | (g) << 8 | (b))
  22 #define IS_TRUECOL(x)           (1 << 24 & (x))
  23
  24 enum glyph_attribute {
  25         ATTR_NULL       = 0,
  26         ATTR_BOLD       = 1 << 0,
  27         ATTR_FAINT      = 1 << 1,
  28         ATTR_ITALIC     = 1 << 2,
  29         ATTR_UNDERLINE  = 1 << 3,
  30         ATTR_BLINK      = 1 << 4,
  31         ATTR_REVERSE    = 1 << 5,
  32         ATTR_INVISIBLE  = 1 << 6,
  33         ATTR_STRUCK     = 1 << 7,
  34         ATTR_WRAP       = 1 << 8,
  35         ATTR_WIDE       = 1 << 9,
  36         ATTR_WDUMMY     = 1 << 10,
  37         ATTR_BOLD_FAINT = ATTR_BOLD | ATTR_FAINT,
  38 };
  39
  40 enum term_mode {
  41         MODE_WRAP        = 1 << 0,
  42         MODE_INSERT      = 1 << 1,
  43         MODE_APPKEYPAD   = 1 << 2,
  44         MODE_ALTSCREEN   = 1 << 3,
  45         MODE_CRLF        = 1 << 4,
  46         MODE_MOUSEBTN    = 1 << 5,
  47         MODE_MOUSEMOTION = 1 << 6,
  48         MODE_REVERSE     = 1 << 7,
  49         MODE_KBDLOCK     = 1 << 8,
  50         MODE_HIDE        = 1 << 9,
  51         MODE_ECHO        = 1 << 10,
  52         MODE_APPCURSOR   = 1 << 11,
  53         MODE_MOUSESGR    = 1 << 12,
  54         MODE_8BIT        = 1 << 13,
  55         MODE_BLINK       = 1 << 14,
  56         MODE_FBLINK      = 1 << 15,
  57         MODE_FOCUS       = 1 << 16,
  58         MODE_MOUSEX10    = 1 << 17,
  59         MODE_MOUSEMANY   = 1 << 18,
  60         MODE_BRCKTPASTE  = 1 << 19,
  61         MODE_PRINT       = 1 << 20,
  62         MODE_UTF8        = 1 << 21,
  63         MODE_SIXEL       = 1 << 22,
  64         MODE_MOUSE       = MODE_MOUSEBTN|MODE_MOUSEMOTION|MODE_MOUSEX10\
  65                           |MODE_MOUSEMANY,
  66 };
  67
  68 enum selection_mode {
  69         SEL_IDLE = 0,
  70         SEL_EMPTY = 1,
  71         SEL_READY = 2
  72 };
  73
  74 enum selection_type {
  75         SEL_REGULAR = 1,
  76         SEL_RECTANGULAR = 2
  77 };
  78
  79 enum selection_snap {
  80         SNAP_WORD = 1,
  81         SNAP_LINE = 2
  82 };
  83
  84 typedef unsigned char uchar;
  85 typedef unsigned int uint;
  86 typedef unsigned long ulong;
  87 typedef unsigned short ushort;
  88
  89 typedef uint_least32_t Rune;
  90
  91 #define Glyph Glyph_
  92 typedef struct {
  93         Rune u;           /* character code */
  94         ushort mode;      /* attribute flags */
  95         uint32_t fg;      /* foreground  */
  96         uint32_t bg;      /* background  */
  97 } Glyph;
  98
  99 typedef Glyph *Line;
 100
 101 typedef struct {
 102         Glyph attr; /* current char attributes */
 103         int x;
 104         int y;
 105         char state;
 106 } TCursor;
 107
 108 /* Internal representation of the screen */
 109 typedef struct {
 110         int row;      /* nb row */
 111         int col;      /* nb col */
 112         Line *line;   /* screen */
 113         Line *alt;    /* alternate screen */
 114         int *dirty;  /* dirtyness of lines */
 115         TCursor c;    /* cursor */
 116         int top;      /* top    scroll limit */
 117         int bot;      /* bottom scroll limit */
 118         int mode;     /* terminal mode flags */
 119         int esc;      /* escape state flags */
 120         char trantbl[4]; /* charset table translation */
 121         int charset;  /* current charset */
 122         int icharset; /* selected charset for sequence */
 123         int numlock; /* lock numbers in keyboard */
 124         int *tabs;
 125 } Term;
 126
 127 /* Purely graphic info */
 128 typedef struct {
 129         int tw, th; /* tty width and height */
 130         int w, h; /* window width and height */
 131         int ch; /* char height */
 132         int cw; /* char width  */
 133         char state; /* focus, redraw, visible */
 134         int cursor; /* cursor style */
 135 } TermWindow;
 136
 137 typedef struct {
 138         int mode;
 139         int type;
 140         int snap;
 141         /*
 142          * Selection variables:
 143          * nb – normalized coordinates of the beginning of the selection
 144          * ne – normalized coordinates of the end of the selection
 145          * ob – original coordinates of the beginning of the selection
 146          * oe – original coordinates of the end of the selection
 147          */
 148         struct {
 149                 int x, y;
 150         } nb, ne, ob, oe;
 151
 152         char *primary, *clipboard;
 153         int alt;
 154         struct timespec tclick1;
 155         struct timespec tclick2;
 156
 157         //Atom xtarget;
 158 } Selection;
 159
 160 typedef union {
 161         int i;
 162         uint ui;
 163         float f;
 164         const void *v;
 165 } Arg;
 166
 167 void die(const char *, ...);
 168 void redraw(void);
 169
 170 void iso14755(const Arg *);
 171 void numlock(const Arg *);
 172 void printscreen(const Arg *);
 173 void printsel(const Arg *);
 174 void sendbreak(const Arg *);
 175 void toggleprinter(const Arg *);
 176
 177 int tattrset(int);
 178 void tnew(int, int);
 179 void tresize(int, int);
 180 void tsetdirt(int, int);
 181 void tsetdirtattr(int);
 182 void ttynew(char *, char *, char **);
 183 size_t ttyread(void);
 184 void ttyresize(int, int);
 185 void ttysend(char *, size_t);
 186 void ttywrite(const char *, size_t);
 187
 188 void resettitle(void);
 189
 190 void selclear(void);
 191 void selinit(void);
 192 void selnormalize(void);
 193 int selected(int, int);
 194 char *getsel(void);
 195
 196 size_t utf8decode(const char *, Rune *, size_t);
 197 size_t utf8encode(Rune, char *);
 198
 199 void *xmalloc(size_t);
 200 void *xrealloc(void *, size_t);
 201 char *xstrdup(char *);
 202
 203 /* Globals */
 204 extern Term term;
 205 extern Selection sel;
 206 extern int cmdfd;
 207 extern pid_t pid;
 208 extern int oldbutton;
 209
 210 /* config.h globals */
 211 extern char *shell;
 212 extern char *utmp;
 213 extern char *stty_args;
 214 extern char *vtiden;
 215 extern char *worddelimiters;
 216 extern int allowaltscreen;
 217 extern char *termname;
 218 extern unsigned int tabspaces;
 219 extern unsigned int defaultfg;
 220 extern unsigned int defaultbg;