backport of local changes

[st.git] / st.h

diff --git a/st.h b/st.h
new file mode 100644 (file)
index 0000000..be39ef4
--- /dev/null
+++ b/st.h
@@ -0,0 +1,181 @@
+/* See LICENSE for licence details. */
+
+#define _XOPEN_SOURCE
+#include <ctype.h>
+#include <fcntl.h>
+#include <locale.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/select.h>
+#include <sys/ioctl.h>
+#include <X11/Xlib.h>
+#include <X11/keysym.h>
+#include <X11/Xutil.h>
+
+/* special keys */
+#define KEYDELETE "\033[3~"
+#define KEYHOME   "\033[1~"
+#define KEYEND    "\033[4~"
+#define KEYPREV   "\033[5~"
+#define KEYNEXT   "\033[6~"
+
+#define TNAME "st"
+#define SHELL "/bin/bash"
+#define TAB    8
+
+#define FONT "-*-terminus-medium-r-normal-*-14-*-*-*-*-*-*-*"
+#define BORDER 3
+#define LINESPACE 1 /* additional pixel between each line */
+
+/* Default colors */
+#define DefaultFG 7
+#define DefaultBG 0
+#define DefaultCS 1
+#define BellCol   DefaultFG /* visual bell color */
+
+static char* colorname[] = {
+       "black",
+       "red",
+       "green",
+       "yellow",
+       "blue",
+       "magenta",
+       "cyan",
+       "white",
+};
+
+
+/* Arbitrary sizes */
+#define ESCSIZ 256
+#define ESCARG 16
+
+#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 DEFAULT(a, b)     (a) = (a) ? (a) : (b)    
+#define BETWEEN(x, a, b)  ((a) <= (x) && (x) <= (b))
+#define LIMIT(x, a, b)    (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x)
+
+
+enum { ATnone=0 , ATreverse=1 , ATunderline=2, ATbold=4 }; /* Attribute */
+enum { CSup, CSdown, CSright, CSleft, CShide, CSdraw, CSwrap, CSsave, CSload }; /* Cursor */
+enum { CRset=1 , CRupdate=2 }; /* Character state */
+enum { TMwrap=1 , TMinsert=2 }; /* Terminal mode */
+enum { SCupdate, SCredraw }; /* screen draw mode */
+
+#ifdef TRUECOLOR
+#error Truecolor not implemented yet
+typedef int Color;
+#else
+typedef char Color;
+#endif
+
+
+typedef struct {
+       char c;     /* character code  */
+       char mode;  /* attribute flags */
+       Color fg;   /* foreground      */
+       Color bg;   /* background      */
+       char state; /* state flag      */
+} Glyph;
+
+typedef Glyph* Line;
+
+typedef struct {
+       Glyph attr;  /* current char attributes */
+       char hidden;
+       int x;
+       int y;
+} TCursor;
+
+/* Escape sequence structs */
+typedef struct {
+       char buf[ESCSIZ+1]; /* raw string */
+       int len;            /* raw string length */
+       /* ESC <pre> [[ [<priv>] <arg> [;]] <mode>] */
+       char pre;           
+       char priv;
+       int arg[ESCARG+1];
+       int narg;           /* nb of args */
+       char mode;
+} Escseq;
+
+/* Internal representation of the screen */
+typedef struct {
+       int row;    /* nb row */  
+       int col;    /* nb col */
+       Line* line; /* screen */
+       TCursor c;  /* cursor */
+       int top;    /* top    scroll limit */
+       int bot;    /* bottom scroll limit */
+       int mode;   /* terminal mode */
+} Term;
+
+/* Purely graphic info */
+typedef struct {
+       Display* dis;
+       Window win;
+       int scr;
+       int w;  /* window width  */
+       int h;  /* window height */
+       int ch; /* char height */
+       int cw; /* char width  */
+} XWindow; 
+
+/* Drawing Context */
+typedef struct {
+       unsigned long col[LEN(colorname)];
+       XFontStruct* font;
+       GC gc;
+} DC;
+
+
+void die(const char *errstr, ...);
+void draw(int);
+void execsh(void);
+void kpress(XKeyEvent *);
+void resize(XEvent *);
+void run(void);
+
+int escaddc(char);
+int escfinal(char);
+void escdump(void);
+void eschandle(void);
+void escparse(void);
+void escreset(void);
+
+void tclearregion(int, int, int, int);
+void tcpos(int);
+void tcursor(int);
+void tdeletechar(int);
+void tdeleteline(int);
+void tdump(void);
+void tinsertblank(int);
+void tinsertblankline(int);
+void tmoveto(int, int);
+void tnew(int, int);
+void tnewline(void);
+void tputc(char);
+void tputs(char*, int);
+void tresize(int, int);
+void tscroll(void);
+void tsetattr(int*, int);
+void tsetchar(char);
+void tsetscroll(int, int);
+
+void ttynew(void);
+void ttyread(void);
+void ttyresize(int, int);
+void ttywrite(char *, size_t);
+
+unsigned long xgetcol(const char *);
+void xclear(int, int, int, int);
+void xcursor(int);
+void xdrawc(int, int, Glyph);
+void xinit(void);
+void xscroll(void);