mirror of
https://github.com/alrayyes/st.git
synced 2024-11-23 03:36:21 +00:00
ea782bfc5d
Some keys were in the Key array while others were hardcoded in kpress().This cause some problems with some keys which can generate more of one string based in the configuration of the terminal. --- config.def.h | 70 ++++++++++++++++++++++++++++++++++++++++----------------- st.c | 71 +++++++++++++++++++++++++--------------------------------- 2 files changed, 79 insertions(+), 62 deletions(-)
2929 lines
64 KiB
C
2929 lines
64 KiB
C
/* See LICENSE for licence details. */
|
||
#define _XOPEN_SOURCE 600
|
||
#include <ctype.h>
|
||
#include <errno.h>
|
||
#include <fcntl.h>
|
||
#include <limits.h>
|
||
#include <locale.h>
|
||
#include <pwd.h>
|
||
#include <stdarg.h>
|
||
#include <stdbool.h>
|
||
#include <stdio.h>
|
||
#include <stdlib.h>
|
||
#include <string.h>
|
||
#include <signal.h>
|
||
#include <sys/ioctl.h>
|
||
#include <sys/select.h>
|
||
#include <sys/stat.h>
|
||
#include <sys/time.h>
|
||
#include <sys/types.h>
|
||
#include <sys/wait.h>
|
||
#include <time.h>
|
||
#include <unistd.h>
|
||
#include <X11/Xatom.h>
|
||
#include <X11/Xlib.h>
|
||
#include <X11/Xutil.h>
|
||
#include <X11/cursorfont.h>
|
||
#include <X11/keysym.h>
|
||
#include <X11/extensions/Xdbe.h>
|
||
#include <X11/Xft/Xft.h>
|
||
#include <fontconfig/fontconfig.h>
|
||
|
||
#define Glyph Glyph_
|
||
#define Font Font_
|
||
#define Draw XftDraw *
|
||
#define Colour XftColor
|
||
#define Colourmap Colormap
|
||
|
||
#if defined(__linux)
|
||
#include <pty.h>
|
||
#elif defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__)
|
||
#include <util.h>
|
||
#elif defined(__FreeBSD__) || defined(__DragonFly__)
|
||
#include <libutil.h>
|
||
#endif
|
||
|
||
#define USAGE \
|
||
"st " VERSION " (c) 2010-2012 st engineers\n" \
|
||
"usage: st [-v] [-c class] [-f font] [-g geometry] [-o file]" \
|
||
" [-t title] [-w windowid] [-e command ...]\n"
|
||
|
||
/* XEMBED messages */
|
||
#define XEMBED_FOCUS_IN 4
|
||
#define XEMBED_FOCUS_OUT 5
|
||
|
||
/* Arbitrary sizes */
|
||
#define ESC_BUF_SIZ 256
|
||
#define ESC_ARG_SIZ 16
|
||
#define STR_BUF_SIZ 256
|
||
#define STR_ARG_SIZ 16
|
||
#define DRAW_BUF_SIZ 20*1024
|
||
#define UTF_SIZ 4
|
||
#define XK_NO_MOD UINT_MAX
|
||
#define XK_ANY_MOD 0
|
||
|
||
#define REDRAW_TIMEOUT (80*1000) /* 80 ms */
|
||
|
||
/* macros */
|
||
#define CLEANMASK(mask) (mask & (ShiftMask|ControlMask|Mod1Mask|Mod2Mask|Mod3Mask|Mod4Mask|Mod5Mask))
|
||
#define SERRNO strerror(errno)
|
||
#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)
|
||
#define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || (a).bg != (b).bg)
|
||
#define IS_SET(flag) (term.mode & (flag))
|
||
#define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + (t1.tv_usec-t2.tv_usec)/1000)
|
||
|
||
#define VT102ID "\033[?6c"
|
||
|
||
enum glyph_attribute {
|
||
ATTR_NULL = 0,
|
||
ATTR_REVERSE = 1,
|
||
ATTR_UNDERLINE = 2,
|
||
ATTR_BOLD = 4,
|
||
ATTR_GFX = 8,
|
||
ATTR_ITALIC = 16,
|
||
ATTR_BLINK = 32,
|
||
};
|
||
|
||
enum cursor_movement {
|
||
CURSOR_UP,
|
||
CURSOR_DOWN,
|
||
CURSOR_LEFT,
|
||
CURSOR_RIGHT,
|
||
CURSOR_SAVE,
|
||
CURSOR_LOAD
|
||
};
|
||
|
||
enum cursor_state {
|
||
CURSOR_DEFAULT = 0,
|
||
CURSOR_WRAPNEXT = 1,
|
||
CURSOR_ORIGIN = 2
|
||
};
|
||
|
||
enum glyph_state {
|
||
GLYPH_SET = 1,
|
||
GLYPH_DIRTY = 2
|
||
};
|
||
|
||
enum term_mode {
|
||
MODE_WRAP = 1,
|
||
MODE_INSERT = 2,
|
||
MODE_APPKEYPAD = 4,
|
||
MODE_ALTSCREEN = 8,
|
||
MODE_CRLF = 16,
|
||
MODE_MOUSEBTN = 32,
|
||
MODE_MOUSEMOTION = 64,
|
||
MODE_MOUSE = 32|64,
|
||
MODE_REVERSE = 128,
|
||
MODE_KBDLOCK = 256,
|
||
MODE_HIDE = 512,
|
||
MODE_ECHO = 1024,
|
||
MODE_APPCURSOR = 2048
|
||
};
|
||
|
||
enum escape_state {
|
||
ESC_START = 1,
|
||
ESC_CSI = 2,
|
||
ESC_STR = 4, /* DSC, OSC, PM, APC */
|
||
ESC_ALTCHARSET = 8,
|
||
ESC_STR_END = 16, /* a final string was encountered */
|
||
ESC_TEST = 32, /* Enter in test mode */
|
||
};
|
||
|
||
enum window_state {
|
||
WIN_VISIBLE = 1,
|
||
WIN_REDRAW = 2,
|
||
WIN_FOCUSED = 4
|
||
};
|
||
|
||
/* bit macro */
|
||
#undef B0
|
||
enum { B0=1, B1=2, B2=4, B3=8, B4=16, B5=32, B6=64, B7=128 };
|
||
|
||
typedef unsigned char uchar;
|
||
typedef unsigned int uint;
|
||
typedef unsigned long ulong;
|
||
typedef unsigned short ushort;
|
||
|
||
typedef struct {
|
||
char c[UTF_SIZ]; /* character code */
|
||
uchar mode; /* attribute flags */
|
||
ushort fg; /* foreground */
|
||
ushort bg; /* background */
|
||
uchar state; /* state flags */
|
||
} Glyph;
|
||
|
||
typedef Glyph* Line;
|
||
|
||
typedef struct {
|
||
Glyph attr; /* current char attributes */
|
||
int x;
|
||
int y;
|
||
char state;
|
||
} TCursor;
|
||
|
||
/* CSI Escape sequence structs */
|
||
/* ESC '[' [[ [<priv>] <arg> [;]] <mode>] */
|
||
typedef struct {
|
||
char buf[ESC_BUF_SIZ]; /* raw string */
|
||
int len; /* raw string length */
|
||
char priv;
|
||
int arg[ESC_ARG_SIZ];
|
||
int narg; /* nb of args */
|
||
char mode;
|
||
} CSIEscape;
|
||
|
||
/* STR Escape sequence structs */
|
||
/* ESC type [[ [<priv>] <arg> [;]] <mode>] ESC '\' */
|
||
typedef struct {
|
||
char type; /* ESC type ... */
|
||
char buf[STR_BUF_SIZ]; /* raw string */
|
||
int len; /* raw string length */
|
||
char *args[STR_ARG_SIZ];
|
||
int narg; /* nb of args */
|
||
} STREscape;
|
||
|
||
/* Internal representation of the screen */
|
||
typedef struct {
|
||
int row; /* nb row */
|
||
int col; /* nb col */
|
||
Line *line; /* screen */
|
||
Line *alt; /* alternate screen */
|
||
bool *dirty; /* dirtyness of lines */
|
||
TCursor c; /* cursor */
|
||
int top; /* top scroll limit */
|
||
int bot; /* bottom scroll limit */
|
||
int mode; /* terminal mode flags */
|
||
int esc; /* escape state flags */
|
||
bool *tabs;
|
||
} Term;
|
||
|
||
/* Purely graphic info */
|
||
typedef struct {
|
||
Display *dpy;
|
||
Colourmap cmap;
|
||
Window win;
|
||
XdbeBackBuffer buf;
|
||
Atom xembed, wmdeletewin;
|
||
XIM xim;
|
||
XIC xic;
|
||
Draw draw;
|
||
Visual *vis;
|
||
int scr;
|
||
bool isfixed; /* is fixed geometry? */
|
||
int fx, fy, fw, fh; /* fixed geometry */
|
||
int tw, th; /* tty width and height */
|
||
int w; /* window width */
|
||
int h; /* window height */
|
||
int ch; /* char height */
|
||
int cw; /* char width */
|
||
char state; /* focus, redraw, visible */
|
||
} XWindow;
|
||
|
||
typedef struct {
|
||
KeySym k;
|
||
uint mask;
|
||
char s[ESC_BUF_SIZ];
|
||
/* three valued logic variables: 0 indifferent, 1 on, -1 off */
|
||
signed char appkey; /* application keypad */
|
||
signed char appcursor; /* application cursor */
|
||
signed char crlf; /* crlf mode */
|
||
} Key;
|
||
|
||
/* TODO: use better name for vars... */
|
||
typedef struct {
|
||
int mode;
|
||
int bx, by;
|
||
int ex, ey;
|
||
struct {
|
||
int x, y;
|
||
} b, e;
|
||
char *clip;
|
||
Atom xtarget;
|
||
bool alt;
|
||
struct timeval tclick1;
|
||
struct timeval tclick2;
|
||
} Selection;
|
||
|
||
typedef union {
|
||
int i;
|
||
unsigned int ui;
|
||
float f;
|
||
const void *v;
|
||
} Arg;
|
||
|
||
typedef struct {
|
||
unsigned int mod;
|
||
KeySym keysym;
|
||
void (*func)(const Arg *);
|
||
const Arg arg;
|
||
} Shortcut;
|
||
|
||
/* function definitions used in config.h */
|
||
static void xzoom(const Arg *);
|
||
static void selpaste(const Arg *);
|
||
|
||
/* Config.h for applying patches and the configuration. */
|
||
#include "config.h"
|
||
|
||
/* Font structure */
|
||
typedef struct {
|
||
int height;
|
||
int width;
|
||
int ascent;
|
||
int descent;
|
||
short lbearing;
|
||
short rbearing;
|
||
XftFont *set;
|
||
} Font;
|
||
|
||
/* Drawing Context */
|
||
typedef struct {
|
||
Colour col[LEN(colorname) < 256 ? 256 : LEN(colorname)];
|
||
Font font, bfont, ifont, ibfont;
|
||
} DC;
|
||
|
||
static void die(const char *, ...);
|
||
static void draw(void);
|
||
static void redraw(void);
|
||
static void drawregion(int, int, int, int);
|
||
static void execsh(void);
|
||
static void sigchld(int);
|
||
static void run(void);
|
||
|
||
static void csidump(void);
|
||
static void csihandle(void);
|
||
static void csiparse(void);
|
||
static void csireset(void);
|
||
static void strdump(void);
|
||
static void strhandle(void);
|
||
static void strparse(void);
|
||
static void strreset(void);
|
||
|
||
static void tclearregion(int, int, int, int);
|
||
static void tcursor(int);
|
||
static void tdeletechar(int);
|
||
static void tdeleteline(int);
|
||
static void tinsertblank(int);
|
||
static void tinsertblankline(int);
|
||
static void tmoveto(int, int);
|
||
static void tmoveato(int x, int y);
|
||
static void tnew(int, int);
|
||
static void tnewline(int);
|
||
static void tputtab(bool);
|
||
static void tputc(char *, int);
|
||
static void treset(void);
|
||
static int tresize(int, int);
|
||
static void tscrollup(int, int);
|
||
static void tscrolldown(int, int);
|
||
static void tsetattr(int*, int);
|
||
static void tsetchar(char *, Glyph *, int, int);
|
||
static void tsetscroll(int, int);
|
||
static void tswapscreen(void);
|
||
static void tsetdirt(int, int);
|
||
static void tsetmode(bool, bool, int *, int);
|
||
static void tfulldirt(void);
|
||
static void techo(char *, int);
|
||
|
||
static void ttynew(void);
|
||
static void ttyread(void);
|
||
static void ttyresize(void);
|
||
static void ttywrite(const char *, size_t);
|
||
|
||
static void xdraws(char *, Glyph, int, int, int, int);
|
||
static void xhints(void);
|
||
static void xclear(int, int, int, int);
|
||
static void xdrawcursor(void);
|
||
static void xinit(void);
|
||
static void xloadcols(void);
|
||
static void xresettitle(void);
|
||
static void xseturgency(int);
|
||
static void xsetsel(char*);
|
||
static void xtermclear(int, int, int, int);
|
||
static void xresize(int, int);
|
||
|
||
static void expose(XEvent *);
|
||
static void visibility(XEvent *);
|
||
static void unmap(XEvent *);
|
||
static char *kmap(KeySym, uint);
|
||
static void kpress(XEvent *);
|
||
static void cmessage(XEvent *);
|
||
static void cresize(int width, int height);
|
||
static void resize(XEvent *);
|
||
static void focus(XEvent *);
|
||
static void brelease(XEvent *);
|
||
static void bpress(XEvent *);
|
||
static void bmotion(XEvent *);
|
||
static void selnotify(XEvent *);
|
||
static void selclear(XEvent *);
|
||
static void selrequest(XEvent *);
|
||
|
||
static void selinit(void);
|
||
static inline bool selected(int, int);
|
||
static void selcopy(void);
|
||
static void selscroll(int, int);
|
||
|
||
static int utf8decode(char *, long *);
|
||
static int utf8encode(long *, char *);
|
||
static int utf8size(char *);
|
||
static int isfullutf8(char *, int);
|
||
|
||
static ssize_t xwrite(int, char *, size_t);
|
||
static void *xmalloc(size_t);
|
||
static void *xrealloc(void *, size_t);
|
||
static void *xcalloc(size_t nmemb, size_t size);
|
||
|
||
static void (*handler[LASTEvent])(XEvent *) = {
|
||
[KeyPress] = kpress,
|
||
[ClientMessage] = cmessage,
|
||
[ConfigureNotify] = resize,
|
||
[VisibilityNotify] = visibility,
|
||
[UnmapNotify] = unmap,
|
||
[Expose] = expose,
|
||
[FocusIn] = focus,
|
||
[FocusOut] = focus,
|
||
[MotionNotify] = bmotion,
|
||
[ButtonPress] = bpress,
|
||
[ButtonRelease] = brelease,
|
||
[SelectionClear] = selclear,
|
||
[SelectionNotify] = selnotify,
|
||
[SelectionRequest] = selrequest,
|
||
};
|
||
|
||
/* Globals */
|
||
static DC dc;
|
||
static XWindow xw;
|
||
static Term term;
|
||
static CSIEscape csiescseq;
|
||
static STREscape strescseq;
|
||
static int cmdfd;
|
||
static pid_t pid;
|
||
static Selection sel;
|
||
static int iofd = -1;
|
||
static char **opt_cmd = NULL;
|
||
static char *opt_io = NULL;
|
||
static char *opt_title = NULL;
|
||
static char *opt_embed = NULL;
|
||
static char *opt_class = NULL;
|
||
static char *opt_font = NULL;
|
||
|
||
static char *usedfont = NULL;
|
||
static int usedfontsize = 0;
|
||
|
||
ssize_t
|
||
xwrite(int fd, char *s, size_t len) {
|
||
size_t aux = len;
|
||
|
||
while(len > 0) {
|
||
ssize_t r = write(fd, s, len);
|
||
if(r < 0)
|
||
return r;
|
||
len -= r;
|
||
s += r;
|
||
}
|
||
return aux;
|
||
}
|
||
|
||
void *
|
||
xmalloc(size_t len) {
|
||
void *p = malloc(len);
|
||
|
||
if(!p)
|
||
die("Out of memory\n");
|
||
|
||
return p;
|
||
}
|
||
|
||
void *
|
||
xrealloc(void *p, size_t len) {
|
||
if((p = realloc(p, len)) == NULL)
|
||
die("Out of memory\n");
|
||
|
||
return p;
|
||
}
|
||
|
||
void *
|
||
xcalloc(size_t nmemb, size_t size) {
|
||
void *p = calloc(nmemb, size);
|
||
|
||
if(!p)
|
||
die("Out of memory\n");
|
||
|
||
return p;
|
||
}
|
||
|
||
int
|
||
utf8decode(char *s, long *u) {
|
||
uchar c;
|
||
int i, n, rtn;
|
||
|
||
rtn = 1;
|
||
c = *s;
|
||
if(~c & B7) { /* 0xxxxxxx */
|
||
*u = c;
|
||
return rtn;
|
||
} else if((c & (B7|B6|B5)) == (B7|B6)) { /* 110xxxxx */
|
||
*u = c&(B4|B3|B2|B1|B0);
|
||
n = 1;
|
||
} else if((c & (B7|B6|B5|B4)) == (B7|B6|B5)) { /* 1110xxxx */
|
||
*u = c&(B3|B2|B1|B0);
|
||
n = 2;
|
||
} else if((c & (B7|B6|B5|B4|B3)) == (B7|B6|B5|B4)) { /* 11110xxx */
|
||
*u = c & (B2|B1|B0);
|
||
n = 3;
|
||
} else {
|
||
goto invalid;
|
||
}
|
||
|
||
for(i = n, ++s; i > 0; --i, ++rtn, ++s) {
|
||
c = *s;
|
||
if((c & (B7|B6)) != B7) /* 10xxxxxx */
|
||
goto invalid;
|
||
*u <<= 6;
|
||
*u |= c & (B5|B4|B3|B2|B1|B0);
|
||
}
|
||
|
||
if((n == 1 && *u < 0x80) ||
|
||
(n == 2 && *u < 0x800) ||
|
||
(n == 3 && *u < 0x10000) ||
|
||
(*u >= 0xD800 && *u <= 0xDFFF)) {
|
||
goto invalid;
|
||
}
|
||
|
||
return rtn;
|
||
invalid:
|
||
*u = 0xFFFD;
|
||
|
||
return rtn;
|
||
}
|
||
|
||
int
|
||
utf8encode(long *u, char *s) {
|
||
uchar *sp;
|
||
ulong uc;
|
||
int i, n;
|
||
|
||
sp = (uchar *)s;
|
||
uc = *u;
|
||
if(uc < 0x80) {
|
||
*sp = uc; /* 0xxxxxxx */
|
||
return 1;
|
||
} else if(*u < 0x800) {
|
||
*sp = (uc >> 6) | (B7|B6); /* 110xxxxx */
|
||
n = 1;
|
||
} else if(uc < 0x10000) {
|
||
*sp = (uc >> 12) | (B7|B6|B5); /* 1110xxxx */
|
||
n = 2;
|
||
} else if(uc <= 0x10FFFF) {
|
||
*sp = (uc >> 18) | (B7|B6|B5|B4); /* 11110xxx */
|
||
n = 3;
|
||
} else {
|
||
goto invalid;
|
||
}
|
||
|
||
for(i=n,++sp; i>0; --i,++sp)
|
||
*sp = ((uc >> 6*(i-1)) & (B5|B4|B3|B2|B1|B0)) | B7; /* 10xxxxxx */
|
||
|
||
return n+1;
|
||
invalid:
|
||
/* U+FFFD */
|
||
*s++ = '\xEF';
|
||
*s++ = '\xBF';
|
||
*s = '\xBD';
|
||
|
||
return 3;
|
||
}
|
||
|
||
/* use this if your buffer is less than UTF_SIZ, it returns 1 if you can decode
|
||
UTF-8 otherwise return 0 */
|
||
int
|
||
isfullutf8(char *s, int b) {
|
||
uchar *c1, *c2, *c3;
|
||
|
||
c1 = (uchar *)s;
|
||
c2 = (uchar *)++s;
|
||
c3 = (uchar *)++s;
|
||
if(b < 1) {
|
||
return 0;
|
||
} else if((*c1&(B7|B6|B5)) == (B7|B6) && b == 1) {
|
||
return 0;
|
||
} else if((*c1&(B7|B6|B5|B4)) == (B7|B6|B5) &&
|
||
((b == 1) ||
|
||
((b == 2) && (*c2&(B7|B6)) == B7))) {
|
||
return 0;
|
||
} else if((*c1&(B7|B6|B5|B4|B3)) == (B7|B6|B5|B4) &&
|
||
((b == 1) ||
|
||
((b == 2) && (*c2&(B7|B6)) == B7) ||
|
||
((b == 3) && (*c2&(B7|B6)) == B7 && (*c3&(B7|B6)) == B7))) {
|
||
return 0;
|
||
} else {
|
||
return 1;
|
||
}
|
||
}
|
||
|
||
int
|
||
utf8size(char *s) {
|
||
uchar c = *s;
|
||
|
||
if(~c&B7) {
|
||
return 1;
|
||
} else if((c&(B7|B6|B5)) == (B7|B6)) {
|
||
return 2;
|
||
} else if((c&(B7|B6|B5|B4)) == (B7|B6|B5)) {
|
||
return 3;
|
||
} else {
|
||
return 4;
|
||
}
|
||
}
|
||
|
||
void
|
||
selinit(void) {
|
||
memset(&sel.tclick1, 0, sizeof(sel.tclick1));
|
||
memset(&sel.tclick2, 0, sizeof(sel.tclick2));
|
||
sel.mode = 0;
|
||
sel.bx = -1;
|
||
sel.clip = NULL;
|
||
sel.xtarget = XInternAtom(xw.dpy, "UTF8_STRING", 0);
|
||
if(sel.xtarget == None)
|
||
sel.xtarget = XA_STRING;
|
||
}
|
||
|
||
static int
|
||
x2col(int x) {
|
||
x -= borderpx;
|
||
x /= xw.cw;
|
||
|
||
return LIMIT(x, 0, term.col-1);
|
||
}
|
||
|
||
static int
|
||
y2row(int y) {
|
||
y -= borderpx;
|
||
y /= xw.ch;
|
||
|
||
return LIMIT(y, 0, term.row-1);
|
||
}
|
||
|
||
static inline bool
|
||
selected(int x, int y) {
|
||
int bx, ex;
|
||
|
||
if(sel.ey == y && sel.by == y) {
|
||
bx = MIN(sel.bx, sel.ex);
|
||
ex = MAX(sel.bx, sel.ex);
|
||
return BETWEEN(x, bx, ex);
|
||
}
|
||
|
||
return ((sel.b.y < y && y < sel.e.y)
|
||
|| (y == sel.e.y && x <= sel.e.x))
|
||
|| (y == sel.b.y && x >= sel.b.x
|
||
&& (x <= sel.e.x || sel.b.y != sel.e.y));
|
||
}
|
||
|
||
void
|
||
getbuttoninfo(XEvent *e, int *b, int *x, int *y) {
|
||
if(b)
|
||
*b = e->xbutton.button;
|
||
|
||
*x = x2col(e->xbutton.x);
|
||
*y = y2row(e->xbutton.y);
|
||
|
||
sel.b.x = sel.by < sel.ey ? sel.bx : sel.ex;
|
||
sel.b.y = MIN(sel.by, sel.ey);
|
||
sel.e.x = sel.by < sel.ey ? sel.ex : sel.bx;
|
||
sel.e.y = MAX(sel.by, sel.ey);
|
||
}
|
||
|
||
void
|
||
mousereport(XEvent *e) {
|
||
int x = x2col(e->xbutton.x);
|
||
int y = y2row(e->xbutton.y);
|
||
int button = e->xbutton.button;
|
||
int state = e->xbutton.state;
|
||
char buf[] = { '\033', '[', 'M', 0, 32+x+1, 32+y+1 };
|
||
static int ob, ox, oy;
|
||
|
||
/* from urxvt */
|
||
if(e->xbutton.type == MotionNotify) {
|
||
if(!IS_SET(MODE_MOUSEMOTION) || (x == ox && y == oy))
|
||
return;
|
||
button = ob + 32;
|
||
ox = x, oy = y;
|
||
} else if(e->xbutton.type == ButtonRelease || button == AnyButton) {
|
||
button = 3;
|
||
} else {
|
||
button -= Button1;
|
||
if(button >= 3)
|
||
button += 64 - 3;
|
||
if(e->xbutton.type == ButtonPress) {
|
||
ob = button;
|
||
ox = x, oy = y;
|
||
}
|
||
}
|
||
|
||
buf[3] = 32 + button + (state & ShiftMask ? 4 : 0)
|
||
+ (state & Mod4Mask ? 8 : 0)
|
||
+ (state & ControlMask ? 16 : 0);
|
||
|
||
ttywrite(buf, sizeof(buf));
|
||
}
|
||
|
||
void
|
||
bpress(XEvent *e) {
|
||
if(IS_SET(MODE_MOUSE)) {
|
||
mousereport(e);
|
||
} else if(e->xbutton.button == Button1) {
|
||
if(sel.bx != -1) {
|
||
sel.bx = -1;
|
||
tsetdirt(sel.b.y, sel.e.y);
|
||
draw();
|
||
}
|
||
sel.mode = 1;
|
||
sel.ex = sel.bx = x2col(e->xbutton.x);
|
||
sel.ey = sel.by = y2row(e->xbutton.y);
|
||
} else if(e->xbutton.button == Button4) {
|
||
ttywrite("\031", 1);
|
||
} else if(e->xbutton.button == Button5) {
|
||
ttywrite("\005", 1);
|
||
}
|
||
}
|
||
|
||
void
|
||
selcopy(void) {
|
||
char *str, *ptr, *p;
|
||
int x, y, bufsize, is_selected = 0, size;
|
||
Glyph *gp, *last;
|
||
|
||
if(sel.bx == -1) {
|
||
str = NULL;
|
||
} else {
|
||
bufsize = (term.col+1) * (sel.e.y-sel.b.y+1) * UTF_SIZ;
|
||
ptr = str = xmalloc(bufsize);
|
||
|
||
/* append every set & selected glyph to the selection */
|
||
for(y = 0; y < term.row; y++) {
|
||
gp = &term.line[y][0];
|
||
last = gp + term.col;
|
||
|
||
while(--last >= gp && !(last->state & GLYPH_SET))
|
||
/* nothing */;
|
||
|
||
for(x = 0; gp <= last; x++, ++gp) {
|
||
if(!(is_selected = selected(x, y)))
|
||
continue;
|
||
|
||
p = (gp->state & GLYPH_SET) ? gp->c : " ";
|
||
size = utf8size(p);
|
||
memcpy(ptr, p, size);
|
||
ptr += size;
|
||
}
|
||
/* \n at the end of every selected line except for the last one */
|
||
if(is_selected && y < sel.e.y)
|
||
*ptr++ = '\n';
|
||
}
|
||
*ptr = 0;
|
||
}
|
||
sel.alt = IS_SET(MODE_ALTSCREEN);
|
||
xsetsel(str);
|
||
}
|
||
|
||
void
|
||
selnotify(XEvent *e) {
|
||
ulong nitems, ofs, rem;
|
||
int format;
|
||
uchar *data;
|
||
Atom type;
|
||
|
||
ofs = 0;
|
||
do {
|
||
if(XGetWindowProperty(xw.dpy, xw.win, XA_PRIMARY, ofs, BUFSIZ/4,
|
||
False, AnyPropertyType, &type, &format,
|
||
&nitems, &rem, &data)) {
|
||
fprintf(stderr, "Clipboard allocation failed\n");
|
||
return;
|
||
}
|
||
ttywrite((const char *) data, nitems * format / 8);
|
||
XFree(data);
|
||
/* number of 32-bit chunks returned */
|
||
ofs += nitems * format / 32;
|
||
} while(rem > 0);
|
||
}
|
||
|
||
void
|
||
selpaste(const Arg *dummy) {
|
||
XConvertSelection(xw.dpy, XA_PRIMARY, sel.xtarget, XA_PRIMARY,
|
||
xw.win, CurrentTime);
|
||
}
|
||
|
||
void selclear(XEvent *e) {
|
||
if(sel.bx == -1)
|
||
return;
|
||
sel.bx = -1;
|
||
tsetdirt(sel.b.y, sel.e.y);
|
||
}
|
||
|
||
void
|
||
selrequest(XEvent *e) {
|
||
XSelectionRequestEvent *xsre;
|
||
XSelectionEvent xev;
|
||
Atom xa_targets, string;
|
||
|
||
xsre = (XSelectionRequestEvent *) e;
|
||
xev.type = SelectionNotify;
|
||
xev.requestor = xsre->requestor;
|
||
xev.selection = xsre->selection;
|
||
xev.target = xsre->target;
|
||
xev.time = xsre->time;
|
||
/* reject */
|
||
xev.property = None;
|
||
|
||
xa_targets = XInternAtom(xw.dpy, "TARGETS", 0);
|
||
if(xsre->target == xa_targets) {
|
||
/* respond with the supported type */
|
||
string = sel.xtarget;
|
||
XChangeProperty(xsre->display, xsre->requestor, xsre->property,
|
||
XA_ATOM, 32, PropModeReplace,
|
||
(uchar *) &string, 1);
|
||
xev.property = xsre->property;
|
||
} else if(xsre->target == sel.xtarget && sel.clip != NULL) {
|
||
XChangeProperty(xsre->display, xsre->requestor, xsre->property,
|
||
xsre->target, 8, PropModeReplace,
|
||
(uchar *) sel.clip, strlen(sel.clip));
|
||
xev.property = xsre->property;
|
||
}
|
||
|
||
/* all done, send a notification to the listener */
|
||
if(!XSendEvent(xsre->display, xsre->requestor, True, 0, (XEvent *) &xev))
|
||
fprintf(stderr, "Error sending SelectionNotify event\n");
|
||
}
|
||
|
||
void
|
||
xsetsel(char *str) {
|
||
/* register the selection for both the clipboard and the primary */
|
||
Atom clipboard;
|
||
|
||
free(sel.clip);
|
||
sel.clip = str;
|
||
|
||
XSetSelectionOwner(xw.dpy, XA_PRIMARY, xw.win, CurrentTime);
|
||
|
||
clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
|
||
XSetSelectionOwner(xw.dpy, clipboard, xw.win, CurrentTime);
|
||
}
|
||
|
||
void
|
||
brelease(XEvent *e) {
|
||
struct timeval now;
|
||
|
||
if(IS_SET(MODE_MOUSE)) {
|
||
mousereport(e);
|
||
return;
|
||
}
|
||
|
||
if(e->xbutton.button == Button2) {
|
||
selpaste(NULL);
|
||
} else if(e->xbutton.button == Button1) {
|
||
sel.mode = 0;
|
||
getbuttoninfo(e, NULL, &sel.ex, &sel.ey);
|
||
term.dirty[sel.ey] = 1;
|
||
if(sel.bx == sel.ex && sel.by == sel.ey) {
|
||
sel.bx = -1;
|
||
gettimeofday(&now, NULL);
|
||
|
||
if(TIMEDIFF(now, sel.tclick2) <= tripleclicktimeout) {
|
||
/* triple click on the line */
|
||
sel.b.x = sel.bx = 0;
|
||
sel.e.x = sel.ex = term.col;
|
||
sel.b.y = sel.e.y = sel.ey;
|
||
selcopy();
|
||
} else if(TIMEDIFF(now, sel.tclick1) <= doubleclicktimeout) {
|
||
/* double click to select word */
|
||
sel.bx = sel.ex;
|
||
while(sel.bx > 0 && term.line[sel.ey][sel.bx-1].state & GLYPH_SET &&
|
||
term.line[sel.ey][sel.bx-1].c[0] != ' ') {
|
||
sel.bx--;
|
||
}
|
||
sel.b.x = sel.bx;
|
||
while(sel.ex < term.col-1 && term.line[sel.ey][sel.ex+1].state & GLYPH_SET &&
|
||
term.line[sel.ey][sel.ex+1].c[0] != ' ') {
|
||
sel.ex++;
|
||
}
|
||
sel.e.x = sel.ex;
|
||
sel.b.y = sel.e.y = sel.ey;
|
||
selcopy();
|
||
}
|
||
} else {
|
||
selcopy();
|
||
}
|
||
}
|
||
|
||
memcpy(&sel.tclick2, &sel.tclick1, sizeof(struct timeval));
|
||
gettimeofday(&sel.tclick1, NULL);
|
||
}
|
||
|
||
void
|
||
bmotion(XEvent *e) {
|
||
int starty, endy, oldey, oldex;
|
||
|
||
if(IS_SET(MODE_MOUSE)) {
|
||
mousereport(e);
|
||
return;
|
||
}
|
||
|
||
if(sel.mode) {
|
||
oldey = sel.ey;
|
||
oldex = sel.ex;
|
||
getbuttoninfo(e, NULL, &sel.ex, &sel.ey);
|
||
|
||
if(oldey != sel.ey || oldex != sel.ex) {
|
||
starty = MIN(oldey, sel.ey);
|
||
endy = MAX(oldey, sel.ey);
|
||
tsetdirt(starty, endy);
|
||
}
|
||
}
|
||
}
|
||
|
||
void
|
||
die(const char *errstr, ...) {
|
||
va_list ap;
|
||
|
||
va_start(ap, errstr);
|
||
vfprintf(stderr, errstr, ap);
|
||
va_end(ap);
|
||
exit(EXIT_FAILURE);
|
||
}
|
||
|
||
void
|
||
execsh(void) {
|
||
char **args;
|
||
char *envshell = getenv("SHELL");
|
||
const struct passwd *pass = getpwuid(getuid());
|
||
char buf[sizeof(long) * 8 + 1];
|
||
|
||
unsetenv("COLUMNS");
|
||
unsetenv("LINES");
|
||
unsetenv("TERMCAP");
|
||
|
||
if(pass) {
|
||
setenv("LOGNAME", pass->pw_name, 1);
|
||
setenv("USER", pass->pw_name, 1);
|
||
setenv("SHELL", pass->pw_shell, 0);
|
||
setenv("HOME", pass->pw_dir, 0);
|
||
}
|
||
|
||
snprintf(buf, sizeof(buf), "%lu", xw.win);
|
||
setenv("WINDOWID", buf, 1);
|
||
|
||
signal(SIGCHLD, SIG_DFL);
|
||
signal(SIGHUP, SIG_DFL);
|
||
signal(SIGINT, SIG_DFL);
|
||
signal(SIGQUIT, SIG_DFL);
|
||
signal(SIGTERM, SIG_DFL);
|
||
signal(SIGALRM, SIG_DFL);
|
||
|
||
DEFAULT(envshell, shell);
|
||
setenv("TERM", termname, 1);
|
||
args = opt_cmd ? opt_cmd : (char *[]){envshell, "-i", NULL};
|
||
execvp(args[0], args);
|
||
exit(EXIT_FAILURE);
|
||
}
|
||
|
||
void
|
||
sigchld(int a) {
|
||
int stat = 0;
|
||
|
||
if(waitpid(pid, &stat, 0) < 0)
|
||
die("Waiting for pid %hd failed: %s\n", pid, SERRNO);
|
||
|
||
if(WIFEXITED(stat)) {
|
||
exit(WEXITSTATUS(stat));
|
||
} else {
|
||
exit(EXIT_FAILURE);
|
||
}
|
||
}
|
||
|
||
void
|
||
ttynew(void) {
|
||
int m, s;
|
||
struct winsize w = {term.row, term.col, 0, 0};
|
||
|
||
/* seems to work fine on linux, openbsd and freebsd */
|
||
if(openpty(&m, &s, NULL, NULL, &w) < 0)
|
||
die("openpty failed: %s\n", SERRNO);
|
||
|
||
switch(pid = fork()) {
|
||
case -1:
|
||
die("fork failed\n");
|
||
break;
|
||
case 0:
|
||
setsid(); /* create a new process group */
|
||
dup2(s, STDIN_FILENO);
|
||
dup2(s, STDOUT_FILENO);
|
||
dup2(s, STDERR_FILENO);
|
||
if(ioctl(s, TIOCSCTTY, NULL) < 0)
|
||
die("ioctl TIOCSCTTY failed: %s\n", SERRNO);
|
||
close(s);
|
||
close(m);
|
||
execsh();
|
||
break;
|
||
default:
|
||
close(s);
|
||
cmdfd = m;
|
||
signal(SIGCHLD, sigchld);
|
||
if(opt_io) {
|
||
iofd = (!strcmp(opt_io, "-")) ?
|
||
STDOUT_FILENO :
|
||
open(opt_io, O_WRONLY | O_CREAT, 0666);
|
||
if(iofd < 0) {
|
||
fprintf(stderr, "Error opening %s:%s\n",
|
||
opt_io, strerror(errno));
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
void
|
||
dump(char c) {
|
||
static int col;
|
||
|
||
fprintf(stderr, " %02x '%c' ", c, isprint(c)?c:'.');
|
||
if(++col % 10 == 0)
|
||
fprintf(stderr, "\n");
|
||
}
|
||
|
||
void
|
||
ttyread(void) {
|
||
static char buf[BUFSIZ];
|
||
static int buflen = 0;
|
||
char *ptr;
|
||
char s[UTF_SIZ];
|
||
int charsize; /* size of utf8 char in bytes */
|
||
long utf8c;
|
||
int ret;
|
||
|
||
/* append read bytes to unprocessed bytes */
|
||
if((ret = read(cmdfd, buf+buflen, LEN(buf)-buflen)) < 0)
|
||
die("Couldn't read from shell: %s\n", SERRNO);
|
||
|
||
/* process every complete utf8 char */
|
||
buflen += ret;
|
||
ptr = buf;
|
||
while(buflen >= UTF_SIZ || isfullutf8(ptr,buflen)) {
|
||
charsize = utf8decode(ptr, &utf8c);
|
||
utf8encode(&utf8c, s);
|
||
tputc(s, charsize);
|
||
ptr += charsize;
|
||
buflen -= charsize;
|
||
}
|
||
|
||
/* keep any uncomplete utf8 char for the next call */
|
||
memmove(buf, ptr, buflen);
|
||
}
|
||
|
||
void
|
||
ttywrite(const char *s, size_t n) {
|
||
if(write(cmdfd, s, n) == -1)
|
||
die("write error on tty: %s\n", SERRNO);
|
||
}
|
||
|
||
void
|
||
ttyresize(void) {
|
||
struct winsize w;
|
||
|
||
w.ws_row = term.row;
|
||
w.ws_col = term.col;
|
||
w.ws_xpixel = xw.tw;
|
||
w.ws_ypixel = xw.th;
|
||
if(ioctl(cmdfd, TIOCSWINSZ, &w) < 0)
|
||
fprintf(stderr, "Couldn't set window size: %s\n", SERRNO);
|
||
}
|
||
|
||
void
|
||
tsetdirt(int top, int bot) {
|
||
int i;
|
||
|
||
LIMIT(top, 0, term.row-1);
|
||
LIMIT(bot, 0, term.row-1);
|
||
|
||
for(i = top; i <= bot; i++)
|
||
term.dirty[i] = 1;
|
||
}
|
||
|
||
void
|
||
tfulldirt(void) {
|
||
tsetdirt(0, term.row-1);
|
||
}
|
||
|
||
void
|
||
tcursor(int mode) {
|
||
static TCursor c;
|
||
|
||
if(mode == CURSOR_SAVE) {
|
||
c = term.c;
|
||
} else if(mode == CURSOR_LOAD) {
|
||
term.c = c;
|
||
tmoveto(c.x, c.y);
|
||
}
|
||
}
|
||
|
||
void
|
||
treset(void) {
|
||
uint i;
|
||
|
||
term.c = (TCursor){{
|
||
.mode = ATTR_NULL,
|
||
.fg = defaultfg,
|
||
.bg = defaultbg
|
||
}, .x = 0, .y = 0, .state = CURSOR_DEFAULT};
|
||
|
||
memset(term.tabs, 0, term.col * sizeof(*term.tabs));
|
||
for(i = tabspaces; i < term.col; i += tabspaces)
|
||
term.tabs[i] = 1;
|
||
term.top = 0;
|
||
term.bot = term.row - 1;
|
||
term.mode = MODE_WRAP;
|
||
|
||
tclearregion(0, 0, term.col-1, term.row-1);
|
||
tmoveto(0, 0);
|
||
tcursor(CURSOR_SAVE);
|
||
}
|
||
|
||
void
|
||
tnew(int col, int row) {
|
||
/* set screen size */
|
||
term.row = row;
|
||
term.col = col;
|
||
term.line = xmalloc(term.row * sizeof(Line));
|
||
term.alt = xmalloc(term.row * sizeof(Line));
|
||
term.dirty = xmalloc(term.row * sizeof(*term.dirty));
|
||
term.tabs = xmalloc(term.col * sizeof(*term.tabs));
|
||
|
||
for(row = 0; row < term.row; row++) {
|
||
term.line[row] = xmalloc(term.col * sizeof(Glyph));
|
||
term.alt [row] = xmalloc(term.col * sizeof(Glyph));
|
||
term.dirty[row] = 0;
|
||
}
|
||
memset(term.tabs, 0, term.col * sizeof(*term.tabs));
|
||
/* setup screen */
|
||
treset();
|
||
}
|
||
|
||
void
|
||
tswapscreen(void) {
|
||
Line *tmp = term.line;
|
||
|
||
term.line = term.alt;
|
||
term.alt = tmp;
|
||
term.mode ^= MODE_ALTSCREEN;
|
||
tfulldirt();
|
||
}
|
||
|
||
void
|
||
tscrolldown(int orig, int n) {
|
||
int i;
|
||
Line temp;
|
||
|
||
LIMIT(n, 0, term.bot-orig+1);
|
||
|
||
tclearregion(0, term.bot-n+1, term.col-1, term.bot);
|
||
|
||
for(i = term.bot; i >= orig+n; i--) {
|
||
temp = term.line[i];
|
||
term.line[i] = term.line[i-n];
|
||
term.line[i-n] = temp;
|
||
|
||
term.dirty[i] = 1;
|
||
term.dirty[i-n] = 1;
|
||
}
|
||
|
||
selscroll(orig, n);
|
||
}
|
||
|
||
void
|
||
tscrollup(int orig, int n) {
|
||
int i;
|
||
Line temp;
|
||
LIMIT(n, 0, term.bot-orig+1);
|
||
|
||
tclearregion(0, orig, term.col-1, orig+n-1);
|
||
|
||
for(i = orig; i <= term.bot-n; i++) {
|
||
temp = term.line[i];
|
||
term.line[i] = term.line[i+n];
|
||
term.line[i+n] = temp;
|
||
|
||
term.dirty[i] = 1;
|
||
term.dirty[i+n] = 1;
|
||
}
|
||
|
||
selscroll(orig, -n);
|
||
}
|
||
|
||
void
|
||
selscroll(int orig, int n) {
|
||
if(sel.bx == -1)
|
||
return;
|
||
|
||
if(BETWEEN(sel.by, orig, term.bot) || BETWEEN(sel.ey, orig, term.bot)) {
|
||
if((sel.by += n) > term.bot || (sel.ey += n) < term.top) {
|
||
sel.bx = -1;
|
||
return;
|
||
}
|
||
if(sel.by < term.top) {
|
||
sel.by = term.top;
|
||
sel.bx = 0;
|
||
}
|
||
if(sel.ey > term.bot) {
|
||
sel.ey = term.bot;
|
||
sel.ex = term.col;
|
||
}
|
||
sel.b.y = sel.by, sel.b.x = sel.bx;
|
||
sel.e.y = sel.ey, sel.e.x = sel.ex;
|
||
}
|
||
}
|
||
|
||
void
|
||
tnewline(int first_col) {
|
||
int y = term.c.y;
|
||
|
||
if(y == term.bot) {
|
||
tscrollup(term.top, 1);
|
||
} else {
|
||
y++;
|
||
}
|
||
tmoveto(first_col ? 0 : term.c.x, y);
|
||
}
|
||
|
||
void
|
||
csiparse(void) {
|
||
/* int noarg = 1; */
|
||
char *p = csiescseq.buf;
|
||
|
||
csiescseq.narg = 0;
|
||
if(*p == '?')
|
||
csiescseq.priv = 1, p++;
|
||
|
||
while(p < csiescseq.buf+csiescseq.len) {
|
||
while(isdigit(*p)) {
|
||
csiescseq.arg[csiescseq.narg] *= 10;
|
||
csiescseq.arg[csiescseq.narg] += *p++ - '0'/*, noarg = 0 */;
|
||
}
|
||
if(*p == ';' && csiescseq.narg+1 < ESC_ARG_SIZ) {
|
||
csiescseq.narg++, p++;
|
||
} else {
|
||
csiescseq.mode = *p;
|
||
csiescseq.narg++;
|
||
|
||
return;
|
||
}
|
||
}
|
||
}
|
||
|
||
/* for absolute user moves, when decom is set */
|
||
void
|
||
tmoveato(int x, int y) {
|
||
tmoveto(x, y + ((term.c.state & CURSOR_ORIGIN) ? term.top: 0));
|
||
}
|
||
|
||
void
|
||
tmoveto(int x, int y) {
|
||
int miny, maxy;
|
||
|
||
if(term.c.state & CURSOR_ORIGIN) {
|
||
miny = term.top;
|
||
maxy = term.bot;
|
||
} else {
|
||
miny = 0;
|
||
maxy = term.row - 1;
|
||
}
|
||
LIMIT(x, 0, term.col-1);
|
||
LIMIT(y, miny, maxy);
|
||
term.c.state &= ~CURSOR_WRAPNEXT;
|
||
term.c.x = x;
|
||
term.c.y = y;
|
||
}
|
||
|
||
void
|
||
tsetchar(char *c, Glyph *attr, int x, int y) {
|
||
static char *vt100_0[62] = { /* 0x41 - 0x7e */
|
||
"↑", "↓", "→", "←", "█", "▚", "☃", /* A - G */
|
||
0, 0, 0, 0, 0, 0, 0, 0, /* H - O */
|
||
0, 0, 0, 0, 0, 0, 0, 0, /* P - W */
|
||
0, 0, 0, 0, 0, 0, 0, " ", /* X - _ */
|
||
"◆", "▒", "␉", "␌", "␍", "␊", "°", "±", /* ` - g */
|
||
"", "␋", "┘", "┐", "┌", "└", "┼", "⎺", /* h - o */
|
||
"⎻", "─", "⎼", "⎽", "├", "┤", "┴", "┬", /* p - w */
|
||
"│", "≤", "≥", "π", "≠", "£", "·", /* x - ~ */
|
||
};
|
||
|
||
/*
|
||
* The table is proudly stolen from rxvt.
|
||
*/
|
||
if(attr->mode & ATTR_GFX) {
|
||
if(c[0] >= 0x41 && c[0] <= 0x7e
|
||
&& vt100_0[c[0] - 0x41]) {
|
||
c = vt100_0[c[0] - 0x41];
|
||
}
|
||
}
|
||
|
||
term.dirty[y] = 1;
|
||
term.line[y][x] = *attr;
|
||
memcpy(term.line[y][x].c, c, UTF_SIZ);
|
||
term.line[y][x].state |= GLYPH_SET;
|
||
}
|
||
|
||
void
|
||
tclearregion(int x1, int y1, int x2, int y2) {
|
||
int x, y, temp;
|
||
|
||
if(x1 > x2)
|
||
temp = x1, x1 = x2, x2 = temp;
|
||
if(y1 > y2)
|
||
temp = y1, y1 = y2, y2 = temp;
|
||
|
||
LIMIT(x1, 0, term.col-1);
|
||
LIMIT(x2, 0, term.col-1);
|
||
LIMIT(y1, 0, term.row-1);
|
||
LIMIT(y2, 0, term.row-1);
|
||
|
||
for(y = y1; y <= y2; y++) {
|
||
term.dirty[y] = 1;
|
||
for(x = x1; x <= x2; x++)
|
||
term.line[y][x].state = 0;
|
||
}
|
||
}
|
||
|
||
void
|
||
tdeletechar(int n) {
|
||
int src = term.c.x + n;
|
||
int dst = term.c.x;
|
||
int size = term.col - src;
|
||
|
||
term.dirty[term.c.y] = 1;
|
||
|
||
if(src >= term.col) {
|
||
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
|
||
return;
|
||
}
|
||
|
||
memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src],
|
||
size * sizeof(Glyph));
|
||
tclearregion(term.col-n, term.c.y, term.col-1, term.c.y);
|
||
}
|
||
|
||
void
|
||
tinsertblank(int n) {
|
||
int src = term.c.x;
|
||
int dst = src + n;
|
||
int size = term.col - dst;
|
||
|
||
term.dirty[term.c.y] = 1;
|
||
|
||
if(dst >= term.col) {
|
||
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
|
||
return;
|
||
}
|
||
|
||
memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src],
|
||
size * sizeof(Glyph));
|
||
tclearregion(src, term.c.y, dst - 1, term.c.y);
|
||
}
|
||
|
||
void
|
||
tinsertblankline(int n) {
|
||
if(term.c.y < term.top || term.c.y > term.bot)
|
||
return;
|
||
|
||
tscrolldown(term.c.y, n);
|
||
}
|
||
|
||
void
|
||
tdeleteline(int n) {
|
||
if(term.c.y < term.top || term.c.y > term.bot)
|
||
return;
|
||
|
||
tscrollup(term.c.y, n);
|
||
}
|
||
|
||
void
|
||
tsetattr(int *attr, int l) {
|
||
int i;
|
||
|
||
for(i = 0; i < l; i++) {
|
||
switch(attr[i]) {
|
||
case 0:
|
||
term.c.attr.mode &= ~(ATTR_REVERSE | ATTR_UNDERLINE | ATTR_BOLD \
|
||
| ATTR_ITALIC | ATTR_BLINK);
|
||
term.c.attr.fg = defaultfg;
|
||
term.c.attr.bg = defaultbg;
|
||
break;
|
||
case 1:
|
||
term.c.attr.mode |= ATTR_BOLD;
|
||
break;
|
||
case 3: /* enter standout (highlight) */
|
||
term.c.attr.mode |= ATTR_ITALIC;
|
||
break;
|
||
case 4:
|
||
term.c.attr.mode |= ATTR_UNDERLINE;
|
||
break;
|
||
case 5:
|
||
term.c.attr.mode |= ATTR_BLINK;
|
||
break;
|
||
case 7:
|
||
term.c.attr.mode |= ATTR_REVERSE;
|
||
break;
|
||
case 21:
|
||
case 22:
|
||
term.c.attr.mode &= ~ATTR_BOLD;
|
||
break;
|
||
case 23: /* leave standout (highlight) mode */
|
||
term.c.attr.mode &= ~ATTR_ITALIC;
|
||
break;
|
||
case 24:
|
||
term.c.attr.mode &= ~ATTR_UNDERLINE;
|
||
break;
|
||
case 25:
|
||
term.c.attr.mode &= ~ATTR_BLINK;
|
||
break;
|
||
case 27:
|
||
term.c.attr.mode &= ~ATTR_REVERSE;
|
||
break;
|
||
case 38:
|
||
if(i + 2 < l && attr[i + 1] == 5) {
|
||
i += 2;
|
||
if(BETWEEN(attr[i], 0, 255)) {
|
||
term.c.attr.fg = attr[i];
|
||
} else {
|
||
fprintf(stderr,
|
||
"erresc: bad fgcolor %d\n",
|
||
attr[i]);
|
||
}
|
||
} else {
|
||
fprintf(stderr,
|
||
"erresc(38): gfx attr %d unknown\n",
|
||
attr[i]);
|
||
}
|
||
break;
|
||
case 39:
|
||
term.c.attr.fg = defaultfg;
|
||
break;
|
||
case 48:
|
||
if(i + 2 < l && attr[i + 1] == 5) {
|
||
i += 2;
|
||
if(BETWEEN(attr[i], 0, 255)) {
|
||
term.c.attr.bg = attr[i];
|
||
} else {
|
||
fprintf(stderr,
|
||
"erresc: bad bgcolor %d\n",
|
||
attr[i]);
|
||
}
|
||
} else {
|
||
fprintf(stderr,
|
||
"erresc(48): gfx attr %d unknown\n",
|
||
attr[i]);
|
||
}
|
||
break;
|
||
case 49:
|
||
term.c.attr.bg = defaultbg;
|
||
break;
|
||
default:
|
||
if(BETWEEN(attr[i], 30, 37)) {
|
||
term.c.attr.fg = attr[i] - 30;
|
||
} else if(BETWEEN(attr[i], 40, 47)) {
|
||
term.c.attr.bg = attr[i] - 40;
|
||
} else if(BETWEEN(attr[i], 90, 97)) {
|
||
term.c.attr.fg = attr[i] - 90 + 8;
|
||
} else if(BETWEEN(attr[i], 100, 107)) {
|
||
term.c.attr.bg = attr[i] - 100 + 8;
|
||
} else {
|
||
fprintf(stderr,
|
||
"erresc(default): gfx attr %d unknown\n",
|
||
attr[i]), csidump();
|
||
}
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
void
|
||
tsetscroll(int t, int b) {
|
||
int temp;
|
||
|
||
LIMIT(t, 0, term.row-1);
|
||
LIMIT(b, 0, term.row-1);
|
||
if(t > b) {
|
||
temp = t;
|
||
t = b;
|
||
b = temp;
|
||
}
|
||
term.top = t;
|
||
term.bot = b;
|
||
}
|
||
|
||
#define MODBIT(x, set, bit) ((set) ? ((x) |= (bit)) : ((x) &= ~(bit)))
|
||
|
||
void
|
||
tsetmode(bool priv, bool set, int *args, int narg) {
|
||
int *lim, mode;
|
||
bool alt;
|
||
|
||
for(lim = args + narg; args < lim; ++args) {
|
||
if(priv) {
|
||
switch(*args) {
|
||
break;
|
||
case 1: /* DECCKM -- Cursor key */
|
||
MODBIT(term.mode, set, MODE_APPCURSOR);
|
||
break;
|
||
case 5: /* DECSCNM -- Reverse video */
|
||
mode = term.mode;
|
||
MODBIT(term.mode, set, MODE_REVERSE);
|
||
if(mode != term.mode)
|
||
redraw();
|
||
break;
|
||
case 6: /* DECOM -- Origin */
|
||
MODBIT(term.c.state, set, CURSOR_ORIGIN);
|
||
tmoveato(0, 0);
|
||
break;
|
||
case 7: /* DECAWM -- Auto wrap */
|
||
MODBIT(term.mode, set, MODE_WRAP);
|
||
break;
|
||
case 0: /* Error (IGNORED) */
|
||
case 2: /* DECANM -- ANSI/VT52 (IGNORED) */
|
||
case 3: /* DECCOLM -- Column (IGNORED) */
|
||
case 4: /* DECSCLM -- Scroll (IGNORED) */
|
||
case 8: /* DECARM -- Auto repeat (IGNORED) */
|
||
case 18: /* DECPFF -- Printer feed (IGNORED) */
|
||
case 19: /* DECPEX -- Printer extent (IGNORED) */
|
||
case 42: /* DECNRCM -- National characters (IGNORED) */
|
||
case 12: /* att610 -- Start blinking cursor (IGNORED) */
|
||
break;
|
||
case 25: /* DECTCEM -- Text Cursor Enable Mode */
|
||
MODBIT(term.mode, !set, MODE_HIDE);
|
||
break;
|
||
case 1000: /* 1000,1002: enable xterm mouse report */
|
||
MODBIT(term.mode, set, MODE_MOUSEBTN);
|
||
break;
|
||
case 1002:
|
||
MODBIT(term.mode, set, MODE_MOUSEMOTION);
|
||
break;
|
||
case 1049: /* = 1047 and 1048 */
|
||
case 47:
|
||
case 1047: {
|
||
alt = IS_SET(MODE_ALTSCREEN) != 0;
|
||
if(alt)
|
||
tclearregion(0, 0, term.col-1, term.row-1);
|
||
if(set ^ alt) /* set is always 1 or 0 */
|
||
tswapscreen();
|
||
if(*args != 1049)
|
||
break;
|
||
}
|
||
/* pass through */
|
||
case 1048:
|
||
tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
|
||
break;
|
||
default:
|
||
fprintf(stderr,
|
||
"erresc: unknown private set/reset mode %d\n",
|
||
*args);
|
||
break;
|
||
}
|
||
} else {
|
||
switch(*args) {
|
||
case 0: /* Error (IGNORED) */
|
||
break;
|
||
case 2: /* KAM -- keyboard action */
|
||
MODBIT(term.mode, set, MODE_KBDLOCK);
|
||
break;
|
||
case 4: /* IRM -- Insertion-replacement */
|
||
MODBIT(term.mode, set, MODE_INSERT);
|
||
break;
|
||
case 12: /* SRM -- Send/Receive */
|
||
MODBIT(term.mode, !set, MODE_ECHO);
|
||
break;
|
||
case 20: /* LNM -- Linefeed/new line */
|
||
MODBIT(term.mode, set, MODE_CRLF);
|
||
break;
|
||
default:
|
||
fprintf(stderr,
|
||
"erresc: unknown set/reset mode %d\n",
|
||
*args);
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
#undef MODBIT
|
||
|
||
|
||
void
|
||
csihandle(void) {
|
||
switch(csiescseq.mode) {
|
||
default:
|
||
unknown:
|
||
fprintf(stderr, "erresc: unknown csi ");
|
||
csidump();
|
||
/* die(""); */
|
||
break;
|
||
case '@': /* ICH -- Insert <n> blank char */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tinsertblank(csiescseq.arg[0]);
|
||
break;
|
||
case 'A': /* CUU -- Cursor <n> Up */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tmoveto(term.c.x, term.c.y-csiescseq.arg[0]);
|
||
break;
|
||
case 'B': /* CUD -- Cursor <n> Down */
|
||
case 'e': /* VPR --Cursor <n> Down */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tmoveto(term.c.x, term.c.y+csiescseq.arg[0]);
|
||
break;
|
||
case 'c': /* DA -- Device Attributes */
|
||
if(csiescseq.arg[0] == 0)
|
||
ttywrite(VT102ID, sizeof(VT102ID) - 1);
|
||
break;
|
||
case 'C': /* CUF -- Cursor <n> Forward */
|
||
case 'a': /* HPR -- Cursor <n> Forward */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tmoveto(term.c.x+csiescseq.arg[0], term.c.y);
|
||
break;
|
||
case 'D': /* CUB -- Cursor <n> Backward */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tmoveto(term.c.x-csiescseq.arg[0], term.c.y);
|
||
break;
|
||
case 'E': /* CNL -- Cursor <n> Down and first col */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tmoveto(0, term.c.y+csiescseq.arg[0]);
|
||
break;
|
||
case 'F': /* CPL -- Cursor <n> Up and first col */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tmoveto(0, term.c.y-csiescseq.arg[0]);
|
||
break;
|
||
case 'g': /* TBC -- Tabulation clear */
|
||
switch (csiescseq.arg[0]) {
|
||
case 0: /* clear current tab stop */
|
||
term.tabs[term.c.x] = 0;
|
||
break;
|
||
case 3: /* clear all the tabs */
|
||
memset(term.tabs, 0, term.col * sizeof(*term.tabs));
|
||
break;
|
||
default:
|
||
goto unknown;
|
||
}
|
||
break;
|
||
case 'G': /* CHA -- Move to <col> */
|
||
case '`': /* HPA */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tmoveto(csiescseq.arg[0]-1, term.c.y);
|
||
break;
|
||
case 'H': /* CUP -- Move to <row> <col> */
|
||
case 'f': /* HVP */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
DEFAULT(csiescseq.arg[1], 1);
|
||
tmoveato(csiescseq.arg[1]-1, csiescseq.arg[0]-1);
|
||
break;
|
||
case 'I': /* CHT -- Cursor Forward Tabulation <n> tab stops */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
while(csiescseq.arg[0]--)
|
||
tputtab(1);
|
||
break;
|
||
case 'J': /* ED -- Clear screen */
|
||
sel.bx = -1;
|
||
switch(csiescseq.arg[0]) {
|
||
case 0: /* below */
|
||
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
|
||
if(term.c.y < term.row-1)
|
||
tclearregion(0, term.c.y+1, term.col-1, term.row-1);
|
||
break;
|
||
case 1: /* above */
|
||
if(term.c.y > 1)
|
||
tclearregion(0, 0, term.col-1, term.c.y-1);
|
||
tclearregion(0, term.c.y, term.c.x, term.c.y);
|
||
break;
|
||
case 2: /* all */
|
||
tclearregion(0, 0, term.col-1, term.row-1);
|
||
break;
|
||
default:
|
||
goto unknown;
|
||
}
|
||
break;
|
||
case 'K': /* EL -- Clear line */
|
||
switch(csiescseq.arg[0]) {
|
||
case 0: /* right */
|
||
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
|
||
break;
|
||
case 1: /* left */
|
||
tclearregion(0, term.c.y, term.c.x, term.c.y);
|
||
break;
|
||
case 2: /* all */
|
||
tclearregion(0, term.c.y, term.col-1, term.c.y);
|
||
break;
|
||
}
|
||
break;
|
||
case 'S': /* SU -- Scroll <n> line up */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tscrollup(term.top, csiescseq.arg[0]);
|
||
break;
|
||
case 'T': /* SD -- Scroll <n> line down */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tscrolldown(term.top, csiescseq.arg[0]);
|
||
break;
|
||
case 'L': /* IL -- Insert <n> blank lines */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tinsertblankline(csiescseq.arg[0]);
|
||
break;
|
||
case 'l': /* RM -- Reset Mode */
|
||
tsetmode(csiescseq.priv, 0, csiescseq.arg, csiescseq.narg);
|
||
break;
|
||
case 'M': /* DL -- Delete <n> lines */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tdeleteline(csiescseq.arg[0]);
|
||
break;
|
||
case 'X': /* ECH -- Erase <n> char */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tclearregion(term.c.x, term.c.y, term.c.x + csiescseq.arg[0], term.c.y);
|
||
break;
|
||
case 'P': /* DCH -- Delete <n> char */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tdeletechar(csiescseq.arg[0]);
|
||
break;
|
||
case 'Z': /* CBT -- Cursor Backward Tabulation <n> tab stops */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
while(csiescseq.arg[0]--)
|
||
tputtab(0);
|
||
break;
|
||
case 'd': /* VPA -- Move to <row> */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tmoveato(term.c.x, csiescseq.arg[0]-1);
|
||
break;
|
||
case 'h': /* SM -- Set terminal mode */
|
||
tsetmode(csiescseq.priv, 1, csiescseq.arg, csiescseq.narg);
|
||
break;
|
||
case 'm': /* SGR -- Terminal attribute (color) */
|
||
tsetattr(csiescseq.arg, csiescseq.narg);
|
||
break;
|
||
case 'r': /* DECSTBM -- Set Scrolling Region */
|
||
if(csiescseq.priv) {
|
||
goto unknown;
|
||
} else {
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
DEFAULT(csiescseq.arg[1], term.row);
|
||
tsetscroll(csiescseq.arg[0]-1, csiescseq.arg[1]-1);
|
||
tmoveato(0, 0);
|
||
}
|
||
break;
|
||
case 's': /* DECSC -- Save cursor position (ANSI.SYS) */
|
||
tcursor(CURSOR_SAVE);
|
||
break;
|
||
case 'u': /* DECRC -- Restore cursor position (ANSI.SYS) */
|
||
tcursor(CURSOR_LOAD);
|
||
break;
|
||
}
|
||
}
|
||
|
||
void
|
||
csidump(void) {
|
||
int i;
|
||
uint c;
|
||
|
||
printf("ESC[");
|
||
for(i = 0; i < csiescseq.len; i++) {
|
||
c = csiescseq.buf[i] & 0xff;
|
||
if(isprint(c)) {
|
||
putchar(c);
|
||
} else if(c == '\n') {
|
||
printf("(\\n)");
|
||
} else if(c == '\r') {
|
||
printf("(\\r)");
|
||
} else if(c == 0x1b) {
|
||
printf("(\\e)");
|
||
} else {
|
||
printf("(%02x)", c);
|
||
}
|
||
}
|
||
putchar('\n');
|
||
}
|
||
|
||
void
|
||
csireset(void) {
|
||
memset(&csiescseq, 0, sizeof(csiescseq));
|
||
}
|
||
|
||
void
|
||
strhandle(void) {
|
||
char *p;
|
||
|
||
/*
|
||
* TODO: make this being useful in case of color palette change.
|
||
*/
|
||
strparse();
|
||
|
||
p = strescseq.buf;
|
||
|
||
switch(strescseq.type) {
|
||
case ']': /* OSC -- Operating System Command */
|
||
switch(p[0]) {
|
||
case '0':
|
||
case '1':
|
||
case '2':
|
||
/*
|
||
* TODO: Handle special chars in string, like umlauts.
|
||
*/
|
||
if(p[1] == ';') {
|
||
XStoreName(xw.dpy, xw.win, strescseq.buf+2);
|
||
}
|
||
break;
|
||
case ';':
|
||
XStoreName(xw.dpy, xw.win, strescseq.buf+1);
|
||
break;
|
||
case '4': /* TODO: Set color (arg0) to "rgb:%hexr/$hexg/$hexb" (arg1) */
|
||
break;
|
||
default:
|
||
fprintf(stderr, "erresc: unknown str ");
|
||
strdump();
|
||
break;
|
||
}
|
||
break;
|
||
case 'k': /* old title set compatibility */
|
||
XStoreName(xw.dpy, xw.win, strescseq.buf);
|
||
break;
|
||
case 'P': /* DSC -- Device Control String */
|
||
case '_': /* APC -- Application Program Command */
|
||
case '^': /* PM -- Privacy Message */
|
||
default:
|
||
fprintf(stderr, "erresc: unknown str ");
|
||
strdump();
|
||
/* die(""); */
|
||
break;
|
||
}
|
||
}
|
||
|
||
void
|
||
strparse(void) {
|
||
/*
|
||
* TODO: Implement parsing like for CSI when required.
|
||
* Format: ESC type cmd ';' arg0 [';' argn] ESC \
|
||
*/
|
||
return;
|
||
}
|
||
|
||
void
|
||
strdump(void) {
|
||
int i;
|
||
uint c;
|
||
|
||
printf("ESC%c", strescseq.type);
|
||
for(i = 0; i < strescseq.len; i++) {
|
||
c = strescseq.buf[i] & 0xff;
|
||
if(isprint(c)) {
|
||
putchar(c);
|
||
} else if(c == '\n') {
|
||
printf("(\\n)");
|
||
} else if(c == '\r') {
|
||
printf("(\\r)");
|
||
} else if(c == 0x1b) {
|
||
printf("(\\e)");
|
||
} else {
|
||
printf("(%02x)", c);
|
||
}
|
||
}
|
||
printf("ESC\\\n");
|
||
}
|
||
|
||
void
|
||
strreset(void) {
|
||
memset(&strescseq, 0, sizeof(strescseq));
|
||
}
|
||
|
||
void
|
||
tputtab(bool forward) {
|
||
uint x = term.c.x;
|
||
|
||
if(forward) {
|
||
if(x == term.col)
|
||
return;
|
||
for(++x; x < term.col && !term.tabs[x]; ++x)
|
||
/* nothing */ ;
|
||
} else {
|
||
if(x == 0)
|
||
return;
|
||
for(--x; x > 0 && !term.tabs[x]; --x)
|
||
/* nothing */ ;
|
||
}
|
||
tmoveto(x, term.c.y);
|
||
}
|
||
|
||
void
|
||
techo(char *buf, int len) {
|
||
for(; len > 0; buf++, len--) {
|
||
char c = *buf;
|
||
|
||
if(c == '\033') { /* escape */
|
||
tputc("^", 1);
|
||
tputc("[", 1);
|
||
} else if (c < '\x20') { /* control code */
|
||
if(c != '\n' && c != '\r' && c != '\t') {
|
||
c |= '\x40';
|
||
tputc("^", 1);
|
||
}
|
||
tputc(&c, 1);
|
||
} else {
|
||
break;
|
||
}
|
||
}
|
||
if (len)
|
||
tputc(buf, len);
|
||
}
|
||
|
||
void
|
||
tputc(char *c, int len) {
|
||
uchar ascii = *c;
|
||
bool control = ascii < '\x20' || ascii == 0177;
|
||
|
||
if(iofd != -1) {
|
||
if (xwrite(iofd, c, len) < 0) {
|
||
fprintf(stderr, "Error writting in %s:%s\n",
|
||
opt_io, strerror(errno));
|
||
close(iofd);
|
||
iofd = -1;
|
||
}
|
||
}
|
||
/*
|
||
* STR sequences must be checked before anything else
|
||
* because it can use some control codes as part of the sequence.
|
||
*/
|
||
if(term.esc & ESC_STR) {
|
||
switch(ascii) {
|
||
case '\033':
|
||
term.esc = ESC_START | ESC_STR_END;
|
||
break;
|
||
case '\a': /* backwards compatibility to xterm */
|
||
term.esc = 0;
|
||
strhandle();
|
||
break;
|
||
default:
|
||
strescseq.buf[strescseq.len++] = ascii;
|
||
if(strescseq.len+1 >= STR_BUF_SIZ) {
|
||
term.esc = 0;
|
||
strhandle();
|
||
}
|
||
}
|
||
return;
|
||
}
|
||
|
||
/*
|
||
* Actions of control codes must be performed as soon they arrive
|
||
* because they can be embedded inside a control sequence, and
|
||
* they must not cause conflicts with sequences.
|
||
*/
|
||
if(control) {
|
||
switch(ascii) {
|
||
case '\t': /* HT */
|
||
tputtab(1);
|
||
return;
|
||
case '\b': /* BS */
|
||
tmoveto(term.c.x-1, term.c.y);
|
||
return;
|
||
case '\r': /* CR */
|
||
tmoveto(0, term.c.y);
|
||
return;
|
||
case '\f': /* LF */
|
||
case '\v': /* VT */
|
||
case '\n': /* LF */
|
||
/* go to first col if the mode is set */
|
||
tnewline(IS_SET(MODE_CRLF));
|
||
return;
|
||
case '\a': /* BEL */
|
||
if(!(xw.state & WIN_FOCUSED))
|
||
xseturgency(1);
|
||
return;
|
||
case '\033': /* ESC */
|
||
csireset();
|
||
term.esc = ESC_START;
|
||
return;
|
||
case '\016': /* SO */
|
||
term.c.attr.mode |= ATTR_GFX;
|
||
return;
|
||
case '\017': /* SI */
|
||
term.c.attr.mode &= ~ATTR_GFX;
|
||
return;
|
||
case '\032': /* SUB */
|
||
case '\030': /* CAN */
|
||
csireset();
|
||
return;
|
||
case '\005': /* ENQ (IGNORED) */
|
||
case '\000': /* NUL (IGNORED) */
|
||
case '\021': /* XON (IGNORED) */
|
||
case '\023': /* XOFF (IGNORED) */
|
||
case 0177: /* DEL (IGNORED) */
|
||
return;
|
||
}
|
||
} else if(term.esc & ESC_START) {
|
||
if(term.esc & ESC_CSI) {
|
||
csiescseq.buf[csiescseq.len++] = ascii;
|
||
if(BETWEEN(ascii, 0x40, 0x7E)
|
||
|| csiescseq.len >= ESC_BUF_SIZ) {
|
||
term.esc = 0;
|
||
csiparse(), csihandle();
|
||
}
|
||
} else if(term.esc & ESC_STR_END) {
|
||
term.esc = 0;
|
||
if(ascii == '\\')
|
||
strhandle();
|
||
} else if(term.esc & ESC_ALTCHARSET) {
|
||
switch(ascii) {
|
||
case '0': /* Line drawing set */
|
||
term.c.attr.mode |= ATTR_GFX;
|
||
break;
|
||
case 'B': /* USASCII */
|
||
term.c.attr.mode &= ~ATTR_GFX;
|
||
break;
|
||
case 'A': /* UK (IGNORED) */
|
||
case '<': /* multinational charset (IGNORED) */
|
||
case '5': /* Finnish (IGNORED) */
|
||
case 'C': /* Finnish (IGNORED) */
|
||
case 'K': /* German (IGNORED) */
|
||
break;
|
||
default:
|
||
fprintf(stderr, "esc unhandled charset: ESC ( %c\n", ascii);
|
||
}
|
||
term.esc = 0;
|
||
} else if(term.esc & ESC_TEST) {
|
||
if(ascii == '8') { /* DEC screen alignment test. */
|
||
char E[UTF_SIZ] = "E";
|
||
int x, y;
|
||
|
||
for(x = 0; x < term.col; ++x) {
|
||
for(y = 0; y < term.row; ++y)
|
||
tsetchar(E, &term.c.attr, x, y);
|
||
}
|
||
}
|
||
term.esc = 0;
|
||
} else {
|
||
switch(ascii) {
|
||
case '[':
|
||
term.esc |= ESC_CSI;
|
||
break;
|
||
case '#':
|
||
term.esc |= ESC_TEST;
|
||
break;
|
||
case 'P': /* DCS -- Device Control String */
|
||
case '_': /* APC -- Application Program Command */
|
||
case '^': /* PM -- Privacy Message */
|
||
case ']': /* OSC -- Operating System Command */
|
||
case 'k': /* old title set compatibility */
|
||
strreset();
|
||
strescseq.type = ascii;
|
||
term.esc |= ESC_STR;
|
||
break;
|
||
case '(': /* set primary charset G0 */
|
||
term.esc |= ESC_ALTCHARSET;
|
||
break;
|
||
case ')': /* set secondary charset G1 (IGNORED) */
|
||
case '*': /* set tertiary charset G2 (IGNORED) */
|
||
case '+': /* set quaternary charset G3 (IGNORED) */
|
||
term.esc = 0;
|
||
break;
|
||
case 'D': /* IND -- Linefeed */
|
||
if(term.c.y == term.bot) {
|
||
tscrollup(term.top, 1);
|
||
} else {
|
||
tmoveto(term.c.x, term.c.y+1);
|
||
}
|
||
term.esc = 0;
|
||
break;
|
||
case 'E': /* NEL -- Next line */
|
||
tnewline(1); /* always go to first col */
|
||
term.esc = 0;
|
||
break;
|
||
case 'H': /* HTS -- Horizontal tab stop */
|
||
term.tabs[term.c.x] = 1;
|
||
term.esc = 0;
|
||
break;
|
||
case 'M': /* RI -- Reverse index */
|
||
if(term.c.y == term.top) {
|
||
tscrolldown(term.top, 1);
|
||
} else {
|
||
tmoveto(term.c.x, term.c.y-1);
|
||
}
|
||
term.esc = 0;
|
||
break;
|
||
case 'Z': /* DECID -- Identify Terminal */
|
||
ttywrite(VT102ID, sizeof(VT102ID) - 1);
|
||
term.esc = 0;
|
||
break;
|
||
case 'c': /* RIS -- Reset to inital state */
|
||
treset();
|
||
term.esc = 0;
|
||
xresettitle();
|
||
break;
|
||
case '=': /* DECPAM -- Application keypad */
|
||
term.mode |= MODE_APPKEYPAD;
|
||
term.esc = 0;
|
||
break;
|
||
case '>': /* DECPNM -- Normal keypad */
|
||
term.mode &= ~MODE_APPKEYPAD;
|
||
term.esc = 0;
|
||
break;
|
||
case '7': /* DECSC -- Save Cursor */
|
||
tcursor(CURSOR_SAVE);
|
||
term.esc = 0;
|
||
break;
|
||
case '8': /* DECRC -- Restore Cursor */
|
||
tcursor(CURSOR_LOAD);
|
||
term.esc = 0;
|
||
break;
|
||
case '\\': /* ST -- Stop */
|
||
term.esc = 0;
|
||
break;
|
||
default:
|
||
fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n",
|
||
(uchar) ascii, isprint(ascii)? ascii:'.');
|
||
term.esc = 0;
|
||
}
|
||
}
|
||
/*
|
||
* All characters which forms part of a sequence are not
|
||
* printed
|
||
*/
|
||
return;
|
||
}
|
||
/*
|
||
* Display control codes only if we are in graphic mode
|
||
*/
|
||
if(control && !(term.c.attr.mode & ATTR_GFX))
|
||
return;
|
||
if(sel.bx != -1 && BETWEEN(term.c.y, sel.by, sel.ey))
|
||
sel.bx = -1;
|
||
if(IS_SET(MODE_WRAP) && term.c.state & CURSOR_WRAPNEXT)
|
||
tnewline(1); /* always go to first col */
|
||
tsetchar(c, &term.c.attr, term.c.x, term.c.y);
|
||
if(term.c.x+1 < term.col)
|
||
tmoveto(term.c.x+1, term.c.y);
|
||
else
|
||
term.c.state |= CURSOR_WRAPNEXT;
|
||
}
|
||
|
||
int
|
||
tresize(int col, int row) {
|
||
int i, x;
|
||
int minrow = MIN(row, term.row);
|
||
int mincol = MIN(col, term.col);
|
||
int slide = term.c.y - row + 1;
|
||
bool *bp;
|
||
|
||
if(col < 1 || row < 1)
|
||
return 0;
|
||
|
||
/* free unneeded rows */
|
||
i = 0;
|
||
if(slide > 0) {
|
||
/* slide screen to keep cursor where we expect it -
|
||
* tscrollup would work here, but we can optimize to
|
||
* memmove because we're freeing the earlier lines */
|
||
for(/* i = 0 */; i < slide; i++) {
|
||
free(term.line[i]);
|
||
free(term.alt[i]);
|
||
}
|
||
memmove(term.line, term.line + slide, row * sizeof(Line));
|
||
memmove(term.alt, term.alt + slide, row * sizeof(Line));
|
||
}
|
||
for(i += row; i < term.row; i++) {
|
||
free(term.line[i]);
|
||
free(term.alt[i]);
|
||
}
|
||
|
||
/* resize to new height */
|
||
term.line = xrealloc(term.line, row * sizeof(Line));
|
||
term.alt = xrealloc(term.alt, row * sizeof(Line));
|
||
term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty));
|
||
term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs));
|
||
|
||
/* resize each row to new width, zero-pad if needed */
|
||
for(i = 0; i < minrow; i++) {
|
||
term.dirty[i] = 1;
|
||
term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph));
|
||
term.alt[i] = xrealloc(term.alt[i], col * sizeof(Glyph));
|
||
for(x = mincol; x < col; x++) {
|
||
term.line[i][x].state = 0;
|
||
term.alt[i][x].state = 0;
|
||
}
|
||
}
|
||
|
||
/* allocate any new rows */
|
||
for(/* i == minrow */; i < row; i++) {
|
||
term.dirty[i] = 1;
|
||
term.line[i] = xcalloc(col, sizeof(Glyph));
|
||
term.alt [i] = xcalloc(col, sizeof(Glyph));
|
||
}
|
||
if(col > term.col) {
|
||
bp = term.tabs + term.col;
|
||
|
||
memset(bp, 0, sizeof(*term.tabs) * (col - term.col));
|
||
while(--bp > term.tabs && !*bp)
|
||
/* nothing */ ;
|
||
for(bp += tabspaces; bp < term.tabs + col; bp += tabspaces)
|
||
*bp = 1;
|
||
}
|
||
/* update terminal size */
|
||
term.col = col;
|
||
term.row = row;
|
||
/* reset scrolling region */
|
||
tsetscroll(0, row-1);
|
||
/* make use of the LIMIT in tmoveto */
|
||
tmoveto(term.c.x, term.c.y);
|
||
|
||
return (slide > 0);
|
||
}
|
||
|
||
void
|
||
xresize(int col, int row) {
|
||
xw.tw = MAX(1, 2*borderpx + col * xw.cw);
|
||
xw.th = MAX(1, 2*borderpx + row * xw.ch);
|
||
|
||
XftDrawChange(xw.draw, xw.buf);
|
||
}
|
||
|
||
void
|
||
xloadcols(void) {
|
||
int i, r, g, b;
|
||
XRenderColor color = { .alpha = 0 };
|
||
|
||
/* load colors [0-15] colors and [256-LEN(colorname)[ (config.h) */
|
||
for(i = 0; i < LEN(colorname); i++) {
|
||
if(!colorname[i])
|
||
continue;
|
||
if(!XftColorAllocName(xw.dpy, xw.vis, xw.cmap, colorname[i], &dc.col[i])) {
|
||
die("Could not allocate color '%s'\n", colorname[i]);
|
||
}
|
||
}
|
||
|
||
/* load colors [16-255] ; same colors as xterm */
|
||
for(i = 16, r = 0; r < 6; r++) {
|
||
for(g = 0; g < 6; g++) {
|
||
for(b = 0; b < 6; b++) {
|
||
color.red = r == 0 ? 0 : 0x3737 + 0x2828 * r;
|
||
color.green = g == 0 ? 0 : 0x3737 + 0x2828 * g;
|
||
color.blue = b == 0 ? 0 : 0x3737 + 0x2828 * b;
|
||
if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &dc.col[i])) {
|
||
die("Could not allocate color %d\n", i);
|
||
}
|
||
i++;
|
||
}
|
||
}
|
||
}
|
||
|
||
for(r = 0; r < 24; r++, i++) {
|
||
color.red = color.green = color.blue = 0x0808 + 0x0a0a * r;
|
||
if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color,
|
||
&dc.col[i])) {
|
||
die("Could not allocate color %d\n", i);
|
||
}
|
||
}
|
||
}
|
||
|
||
void
|
||
xtermclear(int col1, int row1, int col2, int row2) {
|
||
XftDrawRect(xw.draw,
|
||
&dc.col[IS_SET(MODE_REVERSE) ? defaultfg : defaultbg],
|
||
borderpx + col1 * xw.cw,
|
||
borderpx + row1 * xw.ch,
|
||
(col2-col1+1) * xw.cw,
|
||
(row2-row1+1) * xw.ch);
|
||
}
|
||
|
||
/*
|
||
* Absolute coordinates.
|
||
*/
|
||
void
|
||
xclear(int x1, int y1, int x2, int y2) {
|
||
XftDrawRect(xw.draw,
|
||
&dc.col[IS_SET(MODE_REVERSE) ? defaultfg : defaultbg],
|
||
x1, y1, x2-x1, y2-y1);
|
||
}
|
||
|
||
void
|
||
xhints(void) {
|
||
XClassHint class = {opt_class ? opt_class : termname, termname};
|
||
XWMHints wm = {.flags = InputHint, .input = 1};
|
||
XSizeHints *sizeh = NULL;
|
||
|
||
sizeh = XAllocSizeHints();
|
||
if(xw.isfixed == False) {
|
||
sizeh->flags = PSize | PResizeInc | PBaseSize;
|
||
sizeh->height = xw.h;
|
||
sizeh->width = xw.w;
|
||
sizeh->height_inc = xw.ch;
|
||
sizeh->width_inc = xw.cw;
|
||
sizeh->base_height = 2*borderpx;
|
||
sizeh->base_width = 2*borderpx;
|
||
} else {
|
||
sizeh->flags = PMaxSize | PMinSize;
|
||
sizeh->min_width = sizeh->max_width = xw.fw;
|
||
sizeh->min_height = sizeh->max_height = xw.fh;
|
||
}
|
||
|
||
XSetWMProperties(xw.dpy, xw.win, NULL, NULL, NULL, 0, sizeh, &wm, &class);
|
||
XFree(sizeh);
|
||
}
|
||
|
||
int
|
||
xloadfont(Font *f, FcPattern *pattern) {
|
||
FcPattern *match;
|
||
FcResult result;
|
||
|
||
match = XftFontMatch(xw.dpy, xw.scr, pattern, &result);
|
||
if(!match)
|
||
return 1;
|
||
if(!(f->set = XftFontOpenPattern(xw.dpy, match))) {
|
||
FcPatternDestroy(match);
|
||
return 1;
|
||
}
|
||
|
||
f->ascent = f->set->ascent;
|
||
f->descent = f->set->descent;
|
||
f->lbearing = 0;
|
||
f->rbearing = f->set->max_advance_width;
|
||
|
||
f->height = f->set->height;
|
||
f->width = f->lbearing + f->rbearing;
|
||
|
||
return 0;
|
||
}
|
||
|
||
void
|
||
xloadfonts(char *fontstr, int fontsize) {
|
||
FcPattern *pattern;
|
||
FcResult result;
|
||
double fontval;
|
||
|
||
if(fontstr[0] == '-') {
|
||
pattern = XftXlfdParse(fontstr, False, False);
|
||
} else {
|
||
pattern = FcNameParse((FcChar8 *)fontstr);
|
||
}
|
||
|
||
if(!pattern)
|
||
die("st: can't open font %s\n", fontstr);
|
||
|
||
if(fontsize > 0) {
|
||
FcPatternDel(pattern, FC_PIXEL_SIZE);
|
||
FcPatternAddDouble(pattern, FC_PIXEL_SIZE, (double)fontsize);
|
||
usedfontsize = fontsize;
|
||
} else {
|
||
result = FcPatternGetDouble(pattern, FC_PIXEL_SIZE, 0, &fontval);
|
||
if(result == FcResultMatch) {
|
||
usedfontsize = (int)fontval;
|
||
} else {
|
||
/*
|
||
* Default font size is 12, if none given. This is to
|
||
* have a known usedfontsize value.
|
||
*/
|
||
FcPatternAddDouble(pattern, FC_PIXEL_SIZE, 12);
|
||
usedfontsize = 12;
|
||
}
|
||
}
|
||
|
||
if(xloadfont(&dc.font, pattern))
|
||
die("st: can't open font %s\n", fontstr);
|
||
|
||
/* Setting character width and height. */
|
||
xw.cw = dc.font.width;
|
||
xw.ch = dc.font.height;
|
||
|
||
FcPatternDel(pattern, FC_WEIGHT);
|
||
FcPatternAddInteger(pattern, FC_WEIGHT, FC_WEIGHT_BOLD);
|
||
if(xloadfont(&dc.bfont, pattern))
|
||
die("st: can't open font %s\n", fontstr);
|
||
|
||
FcPatternDel(pattern, FC_SLANT);
|
||
FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC);
|
||
if(xloadfont(&dc.ibfont, pattern))
|
||
die("st: can't open font %s\n", fontstr);
|
||
|
||
FcPatternDel(pattern, FC_WEIGHT);
|
||
if(xloadfont(&dc.ifont, pattern))
|
||
die("st: can't open font %s\n", fontstr);
|
||
|
||
FcPatternDestroy(pattern);
|
||
}
|
||
|
||
void
|
||
xzoom(const Arg *arg)
|
||
{
|
||
xloadfonts(usedfont, usedfontsize + arg->i);
|
||
cresize(0, 0);
|
||
draw();
|
||
}
|
||
|
||
void
|
||
xinit(void) {
|
||
XSetWindowAttributes attrs;
|
||
Cursor cursor;
|
||
Window parent;
|
||
int sw, sh, major, minor;
|
||
|
||
if(!(xw.dpy = XOpenDisplay(NULL)))
|
||
die("Can't open display\n");
|
||
xw.scr = XDefaultScreen(xw.dpy);
|
||
xw.vis = XDefaultVisual(xw.dpy, xw.scr);
|
||
|
||
/* font */
|
||
usedfont = (opt_font == NULL)? font : opt_font;
|
||
xloadfonts(usedfont, 0);
|
||
|
||
/* colors */
|
||
xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
|
||
xloadcols();
|
||
|
||
/* adjust fixed window geometry */
|
||
if(xw.isfixed) {
|
||
sw = DisplayWidth(xw.dpy, xw.scr);
|
||
sh = DisplayHeight(xw.dpy, xw.scr);
|
||
if(xw.fx < 0)
|
||
xw.fx = sw + xw.fx - xw.fw - 1;
|
||
if(xw.fy < 0)
|
||
xw.fy = sh + xw.fy - xw.fh - 1;
|
||
|
||
xw.h = xw.fh;
|
||
xw.w = xw.fw;
|
||
} else {
|
||
/* window - default size */
|
||
xw.h = 2*borderpx + term.row * xw.ch;
|
||
xw.w = 2*borderpx + term.col * xw.cw;
|
||
xw.fx = 0;
|
||
xw.fy = 0;
|
||
}
|
||
|
||
attrs.background_pixel = dc.col[defaultbg].pixel;
|
||
attrs.border_pixel = dc.col[defaultbg].pixel;
|
||
attrs.bit_gravity = NorthWestGravity;
|
||
attrs.event_mask = FocusChangeMask | KeyPressMask
|
||
| ExposureMask | VisibilityChangeMask | StructureNotifyMask
|
||
| ButtonMotionMask | ButtonPressMask | ButtonReleaseMask;
|
||
attrs.colormap = xw.cmap;
|
||
|
||
parent = opt_embed ? strtol(opt_embed, NULL, 0) : XRootWindow(xw.dpy, xw.scr);
|
||
xw.win = XCreateWindow(xw.dpy, parent, xw.fx, xw.fy,
|
||
xw.w, xw.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
|
||
xw.vis,
|
||
CWBackPixel | CWBorderPixel | CWBitGravity | CWEventMask
|
||
| CWColormap,
|
||
&attrs);
|
||
|
||
/* double buffering */
|
||
if(!XdbeQueryExtension(xw.dpy, &major, &minor))
|
||
die("Xdbe extension is not present\n");
|
||
xw.buf = XdbeAllocateBackBufferName(xw.dpy, xw.win, XdbeCopied);
|
||
|
||
/* Xft rendering context */
|
||
xw.draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap);
|
||
|
||
/* input methods */
|
||
xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL);
|
||
xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing
|
||
| XIMStatusNothing, XNClientWindow, xw.win,
|
||
XNFocusWindow, xw.win, NULL);
|
||
|
||
/* white cursor, black outline */
|
||
cursor = XCreateFontCursor(xw.dpy, XC_xterm);
|
||
XDefineCursor(xw.dpy, xw.win, cursor);
|
||
XRecolorCursor(xw.dpy, cursor,
|
||
&(XColor){.red = 0xffff, .green = 0xffff, .blue = 0xffff},
|
||
&(XColor){.red = 0x0000, .green = 0x0000, .blue = 0x0000});
|
||
|
||
xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False);
|
||
xw.wmdeletewin = XInternAtom(xw.dpy, "WM_DELETE_WINDOW", False);
|
||
XSetWMProtocols(xw.dpy, xw.win, &xw.wmdeletewin, 1);
|
||
|
||
xresettitle();
|
||
XMapWindow(xw.dpy, xw.win);
|
||
xhints();
|
||
XSync(xw.dpy, 0);
|
||
}
|
||
|
||
void
|
||
xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
|
||
int winx = borderpx + x * xw.cw, winy = borderpx + y * xw.ch,
|
||
width = charlen * xw.cw;
|
||
Font *font = &dc.font;
|
||
XGlyphInfo extents;
|
||
Colour *fg = &dc.col[base.fg], *bg = &dc.col[base.bg],
|
||
*temp, revfg, revbg;
|
||
XRenderColor colfg, colbg;
|
||
|
||
if(base.mode & ATTR_BOLD) {
|
||
if(BETWEEN(base.fg, 0, 7)) {
|
||
/* basic system colors */
|
||
fg = &dc.col[base.fg + 8];
|
||
} else if(BETWEEN(base.fg, 16, 195)) {
|
||
/* 256 colors */
|
||
fg = &dc.col[base.fg + 36];
|
||
} else if(BETWEEN(base.fg, 232, 251)) {
|
||
/* greyscale */
|
||
fg = &dc.col[base.fg + 4];
|
||
}
|
||
/*
|
||
* Those ranges will not be brightened:
|
||
* 8 - 15 – bright system colors
|
||
* 196 - 231 – highest 256 color cube
|
||
* 252 - 255 – brightest colors in greyscale
|
||
*/
|
||
font = &dc.bfont;
|
||
}
|
||
|
||
if(base.mode & ATTR_ITALIC)
|
||
font = &dc.ifont;
|
||
if((base.mode & ATTR_ITALIC) && (base.mode & ATTR_BOLD))
|
||
font = &dc.ibfont;
|
||
|
||
if(IS_SET(MODE_REVERSE)) {
|
||
if(fg == &dc.col[defaultfg]) {
|
||
fg = &dc.col[defaultbg];
|
||
} else {
|
||
colfg.red = ~fg->color.red;
|
||
colfg.green = ~fg->color.green;
|
||
colfg.blue = ~fg->color.blue;
|
||
colfg.alpha = fg->color.alpha;
|
||
XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &revfg);
|
||
fg = &revfg;
|
||
}
|
||
|
||
if(bg == &dc.col[defaultbg]) {
|
||
bg = &dc.col[defaultfg];
|
||
} else {
|
||
colbg.red = ~bg->color.red;
|
||
colbg.green = ~bg->color.green;
|
||
colbg.blue = ~bg->color.blue;
|
||
colbg.alpha = bg->color.alpha;
|
||
XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg, &revbg);
|
||
bg = &revbg;
|
||
}
|
||
}
|
||
|
||
if(base.mode & ATTR_REVERSE)
|
||
temp = fg, fg = bg, bg = temp;
|
||
|
||
XftTextExtentsUtf8(xw.dpy, font->set, (FcChar8 *)s, bytelen,
|
||
&extents);
|
||
width = extents.xOff;
|
||
|
||
/* Intelligent cleaning up of the borders. */
|
||
if(x == 0) {
|
||
xclear(0, (y == 0)? 0 : winy, borderpx,
|
||
winy + xw.ch + (y == term.row-1)? xw.h : 0);
|
||
}
|
||
if(x + charlen >= term.col-1) {
|
||
xclear(winx + width, (y == 0)? 0 : winy, xw.w,
|
||
(y == term.row-1)? xw.h : (winy + xw.ch));
|
||
}
|
||
if(y == 0)
|
||
xclear(winx, 0, winx + width, borderpx);
|
||
if(y == term.row-1)
|
||
xclear(winx, winy + xw.ch, winx + width, xw.h);
|
||
|
||
XftDrawRect(xw.draw, bg, winx, winy, width, xw.ch);
|
||
XftDrawStringUtf8(xw.draw, fg, font->set, winx,
|
||
winy + font->ascent, (FcChar8 *)s, bytelen);
|
||
|
||
if(base.mode & ATTR_UNDERLINE) {
|
||
XftDrawRect(xw.draw, fg, winx, winy + font->ascent + 1,
|
||
width, 1);
|
||
}
|
||
}
|
||
|
||
void
|
||
xdrawcursor(void) {
|
||
static int oldx = 0, oldy = 0;
|
||
int sl;
|
||
Glyph g = {{' '}, ATTR_NULL, defaultbg, defaultcs, 0};
|
||
|
||
LIMIT(oldx, 0, term.col-1);
|
||
LIMIT(oldy, 0, term.row-1);
|
||
|
||
if(term.line[term.c.y][term.c.x].state & GLYPH_SET)
|
||
memcpy(g.c, term.line[term.c.y][term.c.x].c, UTF_SIZ);
|
||
|
||
/* remove the old cursor */
|
||
if(term.line[oldy][oldx].state & GLYPH_SET) {
|
||
sl = utf8size(term.line[oldy][oldx].c);
|
||
xdraws(term.line[oldy][oldx].c, term.line[oldy][oldx], oldx,
|
||
oldy, 1, sl);
|
||
} else {
|
||
xtermclear(oldx, oldy, oldx, oldy);
|
||
}
|
||
|
||
/* draw the new one */
|
||
if(!(IS_SET(MODE_HIDE))) {
|
||
if(!(xw.state & WIN_FOCUSED))
|
||
g.bg = defaultucs;
|
||
|
||
if(IS_SET(MODE_REVERSE))
|
||
g.mode |= ATTR_REVERSE, g.fg = defaultcs, g.bg = defaultfg;
|
||
|
||
sl = utf8size(g.c);
|
||
xdraws(g.c, g, term.c.x, term.c.y, 1, sl);
|
||
oldx = term.c.x, oldy = term.c.y;
|
||
}
|
||
}
|
||
|
||
void
|
||
xresettitle(void) {
|
||
XStoreName(xw.dpy, xw.win, opt_title ? opt_title : "st");
|
||
}
|
||
|
||
void
|
||
redraw(void) {
|
||
struct timespec tv = {0, REDRAW_TIMEOUT * 1000};
|
||
|
||
tfulldirt();
|
||
draw();
|
||
XSync(xw.dpy, False); /* necessary for a good tput flash */
|
||
nanosleep(&tv, NULL);
|
||
}
|
||
|
||
void
|
||
draw(void) {
|
||
XdbeSwapInfo swpinfo[1] = {{xw.win, XdbeCopied}};
|
||
|
||
drawregion(0, 0, term.col, term.row);
|
||
XdbeSwapBuffers(xw.dpy, swpinfo, 1);
|
||
}
|
||
|
||
void
|
||
drawregion(int x1, int y1, int x2, int y2) {
|
||
int ic, ib, x, y, ox, sl;
|
||
Glyph base, new;
|
||
char buf[DRAW_BUF_SIZ];
|
||
bool ena_sel = sel.bx != -1, alt = IS_SET(MODE_ALTSCREEN) != 0;
|
||
|
||
if((sel.alt != 0) ^ alt)
|
||
ena_sel = 0;
|
||
if(!(xw.state & WIN_VISIBLE))
|
||
return;
|
||
|
||
for(y = y1; y < y2; y++) {
|
||
if(!term.dirty[y])
|
||
continue;
|
||
|
||
xtermclear(0, y, term.col, y);
|
||
term.dirty[y] = 0;
|
||
base = term.line[y][0];
|
||
ic = ib = ox = 0;
|
||
for(x = x1; x < x2; x++) {
|
||
new = term.line[y][x];
|
||
if(ena_sel && *(new.c) && selected(x, y))
|
||
new.mode ^= ATTR_REVERSE;
|
||
if(ib > 0 && (!(new.state & GLYPH_SET)
|
||
|| ATTRCMP(base, new)
|
||
|| ib >= DRAW_BUF_SIZ-UTF_SIZ)) {
|
||
xdraws(buf, base, ox, y, ic, ib);
|
||
ic = ib = 0;
|
||
}
|
||
if(new.state & GLYPH_SET) {
|
||
if(ib == 0) {
|
||
ox = x;
|
||
base = new;
|
||
}
|
||
sl = utf8size(new.c);
|
||
memcpy(buf+ib, new.c, sl);
|
||
ib += sl;
|
||
++ic;
|
||
}
|
||
}
|
||
if(ib > 0)
|
||
xdraws(buf, base, ox, y, ic, ib);
|
||
}
|
||
xdrawcursor();
|
||
}
|
||
|
||
void
|
||
expose(XEvent *ev) {
|
||
XExposeEvent *e = &ev->xexpose;
|
||
|
||
if(xw.state & WIN_REDRAW) {
|
||
if(!e->count)
|
||
xw.state &= ~WIN_REDRAW;
|
||
}
|
||
}
|
||
|
||
void
|
||
visibility(XEvent *ev) {
|
||
XVisibilityEvent *e = &ev->xvisibility;
|
||
|
||
if(e->state == VisibilityFullyObscured) {
|
||
xw.state &= ~WIN_VISIBLE;
|
||
} else if(!(xw.state & WIN_VISIBLE)) {
|
||
/* need a full redraw for next Expose, not just a buf copy */
|
||
xw.state |= WIN_VISIBLE | WIN_REDRAW;
|
||
}
|
||
}
|
||
|
||
void
|
||
unmap(XEvent *ev) {
|
||
xw.state &= ~WIN_VISIBLE;
|
||
}
|
||
|
||
void
|
||
xseturgency(int add) {
|
||
XWMHints *h = XGetWMHints(xw.dpy, xw.win);
|
||
|
||
h->flags = add ? (h->flags | XUrgencyHint) : (h->flags & ~XUrgencyHint);
|
||
XSetWMHints(xw.dpy, xw.win, h);
|
||
XFree(h);
|
||
}
|
||
|
||
void
|
||
focus(XEvent *ev) {
|
||
if(ev->type == FocusIn) {
|
||
XSetICFocus(xw.xic);
|
||
xw.state |= WIN_FOCUSED;
|
||
xseturgency(0);
|
||
} else {
|
||
XUnsetICFocus(xw.xic);
|
||
xw.state &= ~WIN_FOCUSED;
|
||
}
|
||
}
|
||
|
||
char*
|
||
kmap(KeySym k, uint state) {
|
||
uint mask;
|
||
Key *kp;
|
||
|
||
state &= ~Mod2Mask;
|
||
for(kp = key; kp < key + LEN(key); kp++) {
|
||
mask = kp->mask;
|
||
|
||
if(kp->k != k)
|
||
continue;
|
||
if((state & mask) != mask &&
|
||
(mask == XK_NO_MOD && state))
|
||
continue;
|
||
if((kp->appkey < 0 && IS_SET(MODE_APPKEYPAD)) ||
|
||
(kp->appkey > 0 && !IS_SET(MODE_APPKEYPAD)))
|
||
continue;
|
||
if((kp->appcursor < 0 && IS_SET(MODE_APPCURSOR)) ||
|
||
(kp->appcursor > 0 && !IS_SET(MODE_APPCURSOR)))
|
||
continue;
|
||
if((kp->crlf < 0 && IS_SET(MODE_CRLF)) ||
|
||
(kp->crlf > 0 && !IS_SET(MODE_CRLF)))
|
||
continue;
|
||
|
||
return kp->s;
|
||
}
|
||
return NULL;
|
||
}
|
||
|
||
void
|
||
kpress(XEvent *ev) {
|
||
XKeyEvent *e = &ev->xkey;
|
||
KeySym ksym;
|
||
char xstr[31], buf[32], *customkey, *cp = buf;
|
||
int len, i;
|
||
Status status;
|
||
|
||
if (IS_SET(MODE_KBDLOCK))
|
||
return;
|
||
|
||
len = XmbLookupString(xw.xic, e, xstr, sizeof(xstr), &ksym, &status);
|
||
|
||
/* 1. shortcuts */
|
||
for(i = 0; i < LEN(shortcuts); i++) {
|
||
if((ksym == shortcuts[i].keysym)
|
||
&& (CLEANMASK(shortcuts[i].mod) == \
|
||
CLEANMASK(e->state))
|
||
&& shortcuts[i].func) {
|
||
shortcuts[i].func(&(shortcuts[i].arg));
|
||
}
|
||
}
|
||
|
||
/* 2. custom keys from config.h */
|
||
if((customkey = kmap(ksym, e->state))) {
|
||
len = strlen(customkey);
|
||
memcpy(buf, customkey, len);
|
||
/* 2. hardcoded (overrides X lookup) */
|
||
} else {
|
||
if(len == 0)
|
||
return;
|
||
|
||
if (len == 1 && e->state & Mod1Mask)
|
||
*cp++ = '\033';
|
||
|
||
memcpy(cp, xstr, len);
|
||
len = cp - buf + len;
|
||
}
|
||
ttywrite(buf, len);
|
||
if(IS_SET(MODE_ECHO))
|
||
techo(buf, len);
|
||
}
|
||
|
||
|
||
void
|
||
cmessage(XEvent *e) {
|
||
/* See xembed specs
|
||
http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html */
|
||
if(e->xclient.message_type == xw.xembed && e->xclient.format == 32) {
|
||
if(e->xclient.data.l[1] == XEMBED_FOCUS_IN) {
|
||
xw.state |= WIN_FOCUSED;
|
||
xseturgency(0);
|
||
} else if(e->xclient.data.l[1] == XEMBED_FOCUS_OUT) {
|
||
xw.state &= ~WIN_FOCUSED;
|
||
}
|
||
} else if(e->xclient.data.l[0] == xw.wmdeletewin) {
|
||
/* Send SIGHUP to shell */
|
||
kill(pid, SIGHUP);
|
||
exit(EXIT_SUCCESS);
|
||
}
|
||
}
|
||
|
||
void
|
||
cresize(int width, int height)
|
||
{
|
||
int col, row;
|
||
|
||
if(width != 0)
|
||
xw.w = width;
|
||
if(height != 0)
|
||
xw.h = height;
|
||
|
||
col = (xw.w - 2*borderpx) / xw.cw;
|
||
row = (xw.h - 2*borderpx) / xw.ch;
|
||
|
||
tresize(col, row);
|
||
xresize(col, row);
|
||
ttyresize();
|
||
}
|
||
|
||
void
|
||
resize(XEvent *e) {
|
||
if(e->xconfigure.width == xw.w && e->xconfigure.height == xw.h)
|
||
return;
|
||
|
||
cresize(e->xconfigure.width, e->xconfigure.height);
|
||
}
|
||
|
||
void
|
||
run(void) {
|
||
XEvent ev;
|
||
fd_set rfd;
|
||
int xfd = XConnectionNumber(xw.dpy), i;
|
||
struct timeval drawtimeout, *tv = NULL;
|
||
|
||
for(i = 0;; i++) {
|
||
FD_ZERO(&rfd);
|
||
FD_SET(cmdfd, &rfd);
|
||
FD_SET(xfd, &rfd);
|
||
if(select(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, tv) < 0) {
|
||
if(errno == EINTR)
|
||
continue;
|
||
die("select failed: %s\n", SERRNO);
|
||
}
|
||
|
||
/*
|
||
* Stop after a certain number of reads so the user does not
|
||
* feel like the system is stuttering.
|
||
*/
|
||
if(i < 1000 && FD_ISSET(cmdfd, &rfd)) {
|
||
ttyread();
|
||
|
||
/*
|
||
* Just wait a bit so it isn't disturbing the
|
||
* user and the system is able to write something.
|
||
*/
|
||
drawtimeout.tv_sec = 0;
|
||
drawtimeout.tv_usec = 5;
|
||
tv = &drawtimeout;
|
||
continue;
|
||
}
|
||
i = 0;
|
||
tv = NULL;
|
||
|
||
while(XPending(xw.dpy)) {
|
||
XNextEvent(xw.dpy, &ev);
|
||
if(XFilterEvent(&ev, None))
|
||
continue;
|
||
if(handler[ev.type])
|
||
(handler[ev.type])(&ev);
|
||
}
|
||
|
||
draw();
|
||
XFlush(xw.dpy);
|
||
}
|
||
}
|
||
|
||
int
|
||
main(int argc, char *argv[]) {
|
||
int i, bitm, xr, yr;
|
||
uint wr, hr;
|
||
|
||
xw.fw = xw.fh = xw.fx = xw.fy = 0;
|
||
xw.isfixed = False;
|
||
|
||
for(i = 1; i < argc; i++) {
|
||
switch(argv[i][0] != '-' || argv[i][2] ? -1 : argv[i][1]) {
|
||
case 'c':
|
||
if(++i < argc)
|
||
opt_class = argv[i];
|
||
break;
|
||
case 'e':
|
||
/* eat every remaining arguments */
|
||
if(++i < argc)
|
||
opt_cmd = &argv[i];
|
||
goto run;
|
||
case 'f':
|
||
if(++i < argc)
|
||
opt_font = argv[i];
|
||
break;
|
||
case 'g':
|
||
if(++i >= argc)
|
||
break;
|
||
|
||
bitm = XParseGeometry(argv[i], &xr, &yr, &wr, &hr);
|
||
if(bitm & XValue)
|
||
xw.fx = xr;
|
||
if(bitm & YValue)
|
||
xw.fy = yr;
|
||
if(bitm & WidthValue)
|
||
xw.fw = (int)wr;
|
||
if(bitm & HeightValue)
|
||
xw.fh = (int)hr;
|
||
if(bitm & XNegative && xw.fx == 0)
|
||
xw.fx = -1;
|
||
if(bitm & XNegative && xw.fy == 0)
|
||
xw.fy = -1;
|
||
|
||
if(xw.fh != 0 && xw.fw != 0)
|
||
xw.isfixed = True;
|
||
break;
|
||
case 'o':
|
||
if(++i < argc)
|
||
opt_io = argv[i];
|
||
break;
|
||
case 't':
|
||
if(++i < argc)
|
||
opt_title = argv[i];
|
||
break;
|
||
case 'v':
|
||
default:
|
||
die(USAGE);
|
||
case 'w':
|
||
if(++i < argc)
|
||
opt_embed = argv[i];
|
||
break;
|
||
}
|
||
}
|
||
|
||
run:
|
||
setlocale(LC_CTYPE, "");
|
||
XSetLocaleModifiers("");
|
||
tnew(80, 24);
|
||
xinit();
|
||
ttynew();
|
||
selinit();
|
||
run();
|
||
return 0;
|
||
}
|
||
|