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2444 lines
54 KiB
2444 lines
54 KiB
/* See LICENSE for licence details. */
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#define _XOPEN_SOURCE 600
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#include <ctype.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <limits.h>
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#include <locale.h>
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#include <stdarg.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <signal.h>
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#include <sys/ioctl.h>
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#include <sys/select.h>
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#include <sys/stat.h>
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#include <sys/time.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <time.h>
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#include <unistd.h>
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#include <X11/Xatom.h>
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#include <X11/cursorfont.h>
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#include <X11/keysym.h>
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#include <X11/extensions/Xdbe.h>
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#include <X11/Xft/Xft.h>
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#define Glyph Glyph_
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#define Font Font_
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#if defined(__linux)
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#include <pty.h>
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#elif defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__)
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#include <util.h>
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#elif defined(__FreeBSD__) || defined(__DragonFly__)
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#include <libutil.h>
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#endif
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#define USAGE \
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"st " VERSION " (c) 2010-2012 st engineers\n" \
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"usage: st [-t title] [-c class] [-g geometry]" \
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" [-w windowid] [-v] [-f file] [-e command...]\n"
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/* XEMBED messages */
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#define XEMBED_FOCUS_IN 4
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#define XEMBED_FOCUS_OUT 5
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/* Arbitrary sizes */
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#define ESC_BUF_SIZ 256
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#define ESC_ARG_SIZ 16
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#define STR_BUF_SIZ 256
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#define STR_ARG_SIZ 16
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#define DRAW_BUF_SIZ 20*1024
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#define UTF_SIZ 4
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#define XK_NO_MOD UINT_MAX
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#define XK_ANY_MOD 0
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#define REDRAW_TIMEOUT (80*1000) /* 80 ms */
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#define SERRNO strerror(errno)
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#define MIN(a, b) ((a) < (b) ? (a) : (b))
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#define MAX(a, b) ((a) < (b) ? (b) : (a))
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#define LEN(a) (sizeof(a) / sizeof(a[0]))
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#define DEFAULT(a, b) (a) = (a) ? (a) : (b)
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#define BETWEEN(x, a, b) ((a) <= (x) && (x) <= (b))
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#define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x)
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#define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || (a).bg != (b).bg)
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#define IS_SET(flag) (term.mode & (flag))
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#define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + (t1.tv_usec-t2.tv_usec)/1000)
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#define X2COL(x) (((x) - BORDER)/xw.cw)
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#define Y2ROW(y) (((y) - BORDER)/xw.ch)
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enum glyph_attribute {
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ATTR_NULL = 0,
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ATTR_REVERSE = 1,
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ATTR_UNDERLINE = 2,
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ATTR_BOLD = 4,
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ATTR_GFX = 8,
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ATTR_ITALIC = 16,
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ATTR_BLINK = 32,
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};
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enum cursor_movement {
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CURSOR_UP,
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CURSOR_DOWN,
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CURSOR_LEFT,
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CURSOR_RIGHT,
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CURSOR_SAVE,
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CURSOR_LOAD
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};
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enum cursor_state {
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CURSOR_DEFAULT = 0,
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CURSOR_HIDE = 1,
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CURSOR_WRAPNEXT = 2
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};
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enum glyph_state {
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GLYPH_SET = 1,
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GLYPH_DIRTY = 2
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};
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enum term_mode {
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MODE_WRAP = 1,
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MODE_INSERT = 2,
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MODE_APPKEYPAD = 4,
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MODE_ALTSCREEN = 8,
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MODE_CRLF = 16,
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MODE_MOUSEBTN = 32,
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MODE_MOUSEMOTION = 64,
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MODE_MOUSE = 32|64,
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MODE_REVERSE = 128
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};
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enum escape_state {
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ESC_START = 1,
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ESC_CSI = 2,
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ESC_STR = 4, /* DSC, OSC, PM, APC */
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ESC_ALTCHARSET = 8,
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ESC_STR_END = 16, /* a final string was encountered */
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};
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enum window_state {
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WIN_VISIBLE = 1,
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WIN_REDRAW = 2,
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WIN_FOCUSED = 4
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};
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/* bit macro */
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#undef B0
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enum { B0=1, B1=2, B2=4, B3=8, B4=16, B5=32, B6=64, B7=128 };
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typedef unsigned char uchar;
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typedef unsigned int uint;
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typedef unsigned long ulong;
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typedef unsigned short ushort;
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typedef struct {
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char c[UTF_SIZ]; /* character code */
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uchar mode; /* attribute flags */
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ushort fg; /* foreground */
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ushort bg; /* background */
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uchar state; /* state flags */
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} Glyph;
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typedef Glyph* Line;
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typedef struct {
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Glyph attr; /* current char attributes */
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int x;
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int y;
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char state;
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} TCursor;
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/* CSI Escape sequence structs */
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/* ESC '[' [[ [<priv>] <arg> [;]] <mode>] */
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typedef struct {
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char buf[ESC_BUF_SIZ]; /* raw string */
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int len; /* raw string length */
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char priv;
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int arg[ESC_ARG_SIZ];
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int narg; /* nb of args */
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char mode;
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} CSIEscape;
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/* STR Escape sequence structs */
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/* ESC type [[ [<priv>] <arg> [;]] <mode>] ESC '\' */
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typedef struct {
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char type; /* ESC type ... */
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char buf[STR_BUF_SIZ]; /* raw string */
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int len; /* raw string length */
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char *args[STR_ARG_SIZ];
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int narg; /* nb of args */
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} STREscape;
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/* Internal representation of the screen */
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typedef struct {
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int row; /* nb row */
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int col; /* nb col */
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Line* line; /* screen */
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Line* alt; /* alternate screen */
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bool* dirty; /* dirtyness of lines */
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TCursor c; /* cursor */
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int top; /* top scroll limit */
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int bot; /* bottom scroll limit */
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int mode; /* terminal mode flags */
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int esc; /* escape state flags */
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bool *tabs;
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} Term;
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/* Purely graphic info */
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typedef struct {
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Display* dpy;
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Colormap cmap;
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Window win;
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XdbeBackBuffer buf;
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Atom xembed;
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XIM xim;
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XIC xic;
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XftDraw *xft_draw;
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Visual *vis;
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int scr;
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bool isfixed; /* is fixed geometry? */
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int fx, fy, fw, fh; /* fixed geometry */
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int tw, th; /* tty width and height */
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int w; /* window width */
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int h; /* window height */
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int ch; /* char height */
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int cw; /* char width */
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char state; /* focus, redraw, visible */
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} XWindow;
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typedef struct {
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KeySym k;
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uint mask;
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char s[ESC_BUF_SIZ];
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} Key;
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/* TODO: use better name for vars... */
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typedef struct {
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int mode;
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int bx, by;
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int ex, ey;
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struct {int x, y;} b, e;
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char *clip;
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Atom xtarget;
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bool alt;
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struct timeval tclick1;
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struct timeval tclick2;
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} Selection;
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#include "config.h"
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/* Font structure */
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typedef struct {
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int ascent;
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int descent;
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short lbearing;
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short rbearing;
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XFontSet set;
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XftFont* xft_set;
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} Font;
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/* Drawing Context */
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typedef struct {
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ulong col[LEN(colorname) < 256 ? 256 : LEN(colorname)];
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XftColor xft_col[LEN(colorname) < 256 ? 256 : LEN(colorname)];
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GC gc;
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Font font, bfont, ifont, ibfont;
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} DC;
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static void die(const char*, ...);
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static void draw(void);
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static void redraw(void);
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static void drawregion(int, int, int, int);
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static void execsh(void);
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static void sigchld(int);
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static void run(void);
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static void csidump(void);
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static void csihandle(void);
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static void csiparse(void);
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static void csireset(void);
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static void strdump(void);
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static void strhandle(void);
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static void strparse(void);
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static void strreset(void);
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static void tclearregion(int, int, int, int);
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static void tcursor(int);
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static void tdeletechar(int);
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static void tdeleteline(int);
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static void tinsertblank(int);
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static void tinsertblankline(int);
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static void tmoveto(int, int);
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static void tnew(int, int);
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static void tnewline(int);
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static void tputtab(bool);
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static void tputc(char*);
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static void treset(void);
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static int tresize(int, int);
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static void tscrollup(int, int);
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static void tscrolldown(int, int);
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static void tsetattr(int*, int);
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static void tsetchar(char*);
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static void tsetscroll(int, int);
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static void tswapscreen(void);
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static void tsetdirt(int, int);
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static void tsetmode(bool, bool, int *, int);
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static void tfulldirt(void);
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static void ttynew(void);
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static void ttyread(void);
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static void ttyresize(void);
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static void ttywrite(const char *, size_t);
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static void xdraws(char *, Glyph, int, int, int, int);
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static void xhints(void);
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static void xclear(int, int, int, int);
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static void xdrawcursor(void);
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static void xinit(void);
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static void xloadcols(void);
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static void xresettitle(void);
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static void xseturgency(int);
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static void xsetsel(char*);
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static void xresize(int, int);
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static void expose(XEvent *);
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static void visibility(XEvent *);
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static void unmap(XEvent *);
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static char* kmap(KeySym, uint);
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static void kpress(XEvent *);
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static void cmessage(XEvent *);
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static void resize(XEvent *);
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static void focus(XEvent *);
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static void brelease(XEvent *);
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static void bpress(XEvent *);
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static void bmotion(XEvent *);
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static void selnotify(XEvent *);
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static void selclear(XEvent *);
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static void selrequest(XEvent *);
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static void selinit(void);
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static inline bool selected(int, int);
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static void selcopy(void);
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static void selpaste(void);
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static void selscroll(int, int);
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static int utf8decode(char *, long *);
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static int utf8encode(long *, char *);
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static int utf8size(char *);
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static int isfullutf8(char *, int);
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static void *xmalloc(size_t);
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static void *xrealloc(void *, size_t);
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static void *xcalloc(size_t nmemb, size_t size);
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static void (*handler[LASTEvent])(XEvent *) = {
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[KeyPress] = kpress,
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[ClientMessage] = cmessage,
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[ConfigureNotify] = resize,
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[VisibilityNotify] = visibility,
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[UnmapNotify] = unmap,
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[Expose] = expose,
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[FocusIn] = focus,
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[FocusOut] = focus,
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[MotionNotify] = bmotion,
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[ButtonPress] = bpress,
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[ButtonRelease] = brelease,
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[SelectionClear] = selclear,
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[SelectionNotify] = selnotify,
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[SelectionRequest] = selrequest,
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};
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/* Globals */
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static DC dc;
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static XWindow xw;
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static Term term;
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static CSIEscape csiescseq;
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static STREscape strescseq;
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static int cmdfd;
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static pid_t pid;
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static Selection sel;
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static int iofd = -1;
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static char **opt_cmd = NULL;
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static char *opt_io = NULL;
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static char *opt_title = NULL;
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static char *opt_embed = NULL;
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static char *opt_class = NULL;
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void *
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xmalloc(size_t len) {
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void *p = malloc(len);
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if(!p)
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die("Out of memory\n");
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return p;
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}
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void *
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xrealloc(void *p, size_t len) {
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if((p = realloc(p, len)) == NULL)
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die("Out of memory\n");
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return p;
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}
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void *
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xcalloc(size_t nmemb, size_t size) {
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void *p = calloc(nmemb, size);
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if(!p)
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die("Out of memory\n");
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return p;
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}
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int
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utf8decode(char *s, long *u) {
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uchar c;
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int i, n, rtn;
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rtn = 1;
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c = *s;
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if(~c & B7) { /* 0xxxxxxx */
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*u = c;
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return rtn;
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} else if((c & (B7|B6|B5)) == (B7|B6)) { /* 110xxxxx */
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*u = c&(B4|B3|B2|B1|B0);
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n = 1;
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} else if((c & (B7|B6|B5|B4)) == (B7|B6|B5)) { /* 1110xxxx */
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*u = c&(B3|B2|B1|B0);
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n = 2;
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} else if((c & (B7|B6|B5|B4|B3)) == (B7|B6|B5|B4)) { /* 11110xxx */
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*u = c & (B2|B1|B0);
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n = 3;
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} else
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goto invalid;
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for(i = n, ++s; i > 0; --i, ++rtn, ++s) {
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c = *s;
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if((c & (B7|B6)) != B7) /* 10xxxxxx */
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goto invalid;
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*u <<= 6;
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*u |= c & (B5|B4|B3|B2|B1|B0);
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}
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if((n == 1 && *u < 0x80) ||
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(n == 2 && *u < 0x800) ||
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(n == 3 && *u < 0x10000) ||
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(*u >= 0xD800 && *u <= 0xDFFF))
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goto invalid;
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return rtn;
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invalid:
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*u = 0xFFFD;
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return rtn;
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}
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|
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int
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utf8encode(long *u, char *s) {
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uchar *sp;
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ulong uc;
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int i, n;
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sp = (uchar*) s;
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uc = *u;
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if(uc < 0x80) {
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*sp = uc; /* 0xxxxxxx */
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return 1;
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} else if(*u < 0x800) {
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*sp = (uc >> 6) | (B7|B6); /* 110xxxxx */
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n = 1;
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} else if(uc < 0x10000) {
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*sp = (uc >> 12) | (B7|B6|B5); /* 1110xxxx */
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n = 2;
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} else if(uc <= 0x10FFFF) {
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*sp = (uc >> 18) | (B7|B6|B5|B4); /* 11110xxx */
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n = 3;
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} else {
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goto invalid;
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}
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for(i=n,++sp; i>0; --i,++sp)
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*sp = ((uc >> 6*(i-1)) & (B5|B4|B3|B2|B1|B0)) | B7; /* 10xxxxxx */
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return n+1;
|
|
invalid:
|
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/* U+FFFD */
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*s++ = '\xEF';
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*s++ = '\xBF';
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*s = '\xBD';
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return 3;
|
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}
|
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|
|
/* use this if your buffer is less than UTF_SIZ, it returns 1 if you can decode
|
|
UTF-8 otherwise return 0 */
|
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int
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isfullutf8(char *s, int b) {
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|
uchar *c1, *c2, *c3;
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|
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c1 = (uchar *) s;
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|
c2 = (uchar *) ++s;
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c3 = (uchar *) ++s;
|
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if(b < 1)
|
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return 0;
|
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else if((*c1&(B7|B6|B5)) == (B7|B6) && b == 1)
|
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return 0;
|
|
else if((*c1&(B7|B6|B5|B4)) == (B7|B6|B5) &&
|
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((b == 1) ||
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((b == 2) && (*c2&(B7|B6)) == B7)))
|
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return 0;
|
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else if((*c1&(B7|B6|B5|B4|B3)) == (B7|B6|B5|B4) &&
|
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((b == 1) ||
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((b == 2) && (*c2&(B7|B6)) == B7) ||
|
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((b == 3) && (*c2&(B7|B6)) == B7 && (*c3&(B7|B6)) == B7)))
|
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return 0;
|
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else
|
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return 1;
|
|
}
|
|
|
|
int
|
|
utf8size(char *s) {
|
|
uchar c = *s;
|
|
|
|
if(~c&B7)
|
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return 1;
|
|
else if((c&(B7|B6|B5)) == (B7|B6))
|
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return 2;
|
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else if((c&(B7|B6|B5|B4)) == (B7|B6|B5))
|
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return 3;
|
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else
|
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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 inline bool
|
|
selected(int x, int y) {
|
|
if(sel.ey == y && sel.by == y) {
|
|
int bx = MIN(sel.bx, sel.ex);
|
|
int 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);
|
|
}
|
|
}
|
|
|
|
void
|
|
selcopy(void) {
|
|
char *str, *ptr;
|
|
int x, y, bufsize, is_selected = 0;
|
|
|
|
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++) {
|
|
for(x = 0; x < term.col; x++) {
|
|
int size;
|
|
char *p;
|
|
Glyph *gp = &term.line[y][x];
|
|
|
|
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() {
|
|
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;
|
|
|
|
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 */
|
|
Atom 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) {
|
|
if(IS_SET(MODE_MOUSE)) {
|
|
mousereport(e);
|
|
return;
|
|
}
|
|
if(e->xbutton.button == Button2)
|
|
selpaste();
|
|
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) {
|
|
struct timeval now;
|
|
sel.bx = -1;
|
|
gettimeofday(&now, NULL);
|
|
|
|
if(TIMEDIFF(now, sel.tclick2) <= TRIPLECLICK_TIMEOUT) {
|
|
/* 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) <= DOUBLECLICK_TIMEOUT) {
|
|
/* 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) {
|
|
if(IS_SET(MODE_MOUSE)) {
|
|
mousereport(e);
|
|
return;
|
|
}
|
|
if(sel.mode) {
|
|
int oldey = sel.ey, oldex = sel.ex;
|
|
getbuttoninfo(e, NULL, &sel.ex, &sel.ey);
|
|
|
|
if(oldey != sel.ey || oldex != sel.ex) {
|
|
int starty = MIN(oldey, sel.ey);
|
|
int 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");
|
|
|
|
unsetenv("COLUMNS");
|
|
unsetenv("LINES");
|
|
unsetenv("TERMCAP");
|
|
|
|
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);
|
|
putenv("TERM="TNAME);
|
|
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;
|
|
|
|
/* seems to work fine on linux, openbsd and freebsd */
|
|
struct winsize w = {term.row, term.col, 0, 0};
|
|
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) {
|
|
if(!strcmp(opt_io, "-")) {
|
|
iofd = STDOUT_FILENO;
|
|
} else {
|
|
if((iofd = open(opt_io, O_WRONLY | O_CREAT, 0666)) < 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);
|
|
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 = TAB; i < term.col; i += TAB)
|
|
term.tabs[i] = 1;
|
|
term.top = 0, term.bot = term.row - 1;
|
|
term.mode = MODE_WRAP;
|
|
xclear(0, 0, xw.w, xw.h);
|
|
tclearregion(0, 0, term.col-1, term.row-1);
|
|
}
|
|
|
|
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;
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
tmoveto(int x, int y) {
|
|
LIMIT(x, 0, term.col-1);
|
|
LIMIT(y, 0, term.row-1);
|
|
term.c.state &= ~CURSOR_WRAPNEXT;
|
|
term.c.x = x;
|
|
term.c.y = y;
|
|
}
|
|
|
|
void
|
|
tsetchar(char *c) {
|
|
term.dirty[term.c.y] = 1;
|
|
term.line[term.c.y][term.c.x] = term.c.attr;
|
|
memcpy(term.line[term.c.y][term.c.x].c, c, UTF_SIZ);
|
|
term.line[term.c.y][term.c.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;
|
|
|
|
for(lim = args + narg; args < lim; ++args) {
|
|
if(priv) {
|
|
switch(*args) {
|
|
case 1:
|
|
MODBIT(term.mode, set, MODE_APPKEYPAD);
|
|
break;
|
|
case 5: /* DECSCNM -- Reverve video */
|
|
mode = term.mode;
|
|
MODBIT(term.mode,set, MODE_REVERSE);
|
|
if(mode != term.mode)
|
|
redraw();
|
|
break;
|
|
case 7:
|
|
MODBIT(term.mode, set, MODE_WRAP);
|
|
break;
|
|
case 20:
|
|
MODBIT(term.mode, set, MODE_CRLF);
|
|
break;
|
|
case 12: /* att610 -- Start blinking cursor (IGNORED) */
|
|
break;
|
|
case 25:
|
|
MODBIT(term.c.state, !set, CURSOR_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:
|
|
if(IS_SET(MODE_ALTSCREEN))
|
|
tclearregion(0, 0, term.col-1, term.row-1);
|
|
if((set && !IS_SET(MODE_ALTSCREEN)) ||
|
|
(!set && IS_SET(MODE_ALTSCREEN))) {
|
|
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 4:
|
|
MODBIT(term.mode, set, MODE_INSERT);
|
|
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 */
|
|
case 'e':
|
|
DEFAULT(csiescseq.arg[0], 1);
|
|
tmoveto(term.c.x, term.c.y-csiescseq.arg[0]);
|
|
break;
|
|
case 'B': /* CUD -- Cursor <n> Down */
|
|
DEFAULT(csiescseq.arg[0], 1);
|
|
tmoveto(term.c.x, term.c.y+csiescseq.arg[0]);
|
|
break;
|
|
case 'C': /* CUF -- Cursor <n> Forward */
|
|
case 'a':
|
|
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);
|
|
tmoveto(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);
|
|
tmoveto(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);
|
|
tmoveto(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;
|
|
printf("ESC[");
|
|
for(i = 0; i < csiescseq.len; i++) {
|
|
uint 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;
|
|
printf("ESC%c", strescseq.type);
|
|
for(i = 0; i < strescseq.len; i++) {
|
|
uint 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
|
|
tputc(char *c) {
|
|
char ascii = *c;
|
|
|
|
if(iofd != -1)
|
|
write(iofd, c, 1);
|
|
|
|
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) {
|
|
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();
|
|
}
|
|
}
|
|
} 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 crap */
|
|
term.c.attr.mode |= ATTR_GFX;
|
|
break;
|
|
case 'B': /* Back to regular text */
|
|
term.c.attr.mode &= ~ATTR_GFX;
|
|
break;
|
|
default:
|
|
fprintf(stderr, "esc unhandled charset: ESC ( %c\n", ascii);
|
|
}
|
|
term.esc = 0;
|
|
} else {
|
|
switch(ascii) {
|
|
case '[':
|
|
term.esc |= ESC_CSI;
|
|
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 '(':
|
|
term.esc |= ESC_ALTCHARSET;
|
|
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 '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;
|
|
}
|
|
}
|
|
} else {
|
|
if(sel.bx != -1 && BETWEEN(term.c.y, sel.by, sel.ey))
|
|
sel.bx = -1;
|
|
switch(ascii) {
|
|
case '\0': /* padding character, do nothing */
|
|
break;
|
|
case '\t':
|
|
tputtab(1);
|
|
break;
|
|
case '\b':
|
|
tmoveto(term.c.x-1, term.c.y);
|
|
break;
|
|
case '\r':
|
|
tmoveto(0, term.c.y);
|
|
break;
|
|
case '\f':
|
|
case '\v':
|
|
case '\n':
|
|
/* go to first col if the mode is set */
|
|
tnewline(IS_SET(MODE_CRLF));
|
|
break;
|
|
case '\a':
|
|
if(!(xw.state & WIN_FOCUSED))
|
|
xseturgency(1);
|
|
break;
|
|
case '\033':
|
|
csireset();
|
|
term.esc = ESC_START;
|
|
break;
|
|
default:
|
|
if(IS_SET(MODE_WRAP) && term.c.state & CURSOR_WRAPNEXT)
|
|
tnewline(1); /* always go to first col */
|
|
tsetchar(c);
|
|
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;
|
|
|
|
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) {
|
|
bool *bp = term.tabs + term.col;
|
|
|
|
memset(bp, 0, sizeof(*term.tabs) * (col - term.col));
|
|
while(--bp > term.tabs && !*bp)
|
|
/* nothing */ ;
|
|
for(bp += TAB; bp < term.tabs + col; bp += TAB)
|
|
*bp = 1;
|
|
}
|
|
/* update terminal size */
|
|
term.col = col, term.row = row;
|
|
/* make use of the LIMIT in tmoveto */
|
|
tmoveto(term.c.x, term.c.y);
|
|
/* reset scrolling region */
|
|
tsetscroll(0, row-1);
|
|
|
|
return (slide > 0);
|
|
}
|
|
|
|
void
|
|
xresize(int col, int row) {
|
|
xw.tw = MAX(1, 2*BORDER + col * xw.cw);
|
|
xw.th = MAX(1, 2*BORDER + row * xw.ch);
|
|
|
|
XftDrawChange(xw.xft_draw, xw.buf);
|
|
}
|
|
|
|
void
|
|
xloadcols(void) {
|
|
int i, r, g, b;
|
|
XRenderColor xft_color = { .alpha = 0 };
|
|
ulong white = WhitePixel(xw.dpy, xw.scr);
|
|
|
|
/* 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.xft_col[i])) {
|
|
dc.col[i] = white;
|
|
fprintf(stderr, "Could not allocate color '%s'\n", colorname[i]);
|
|
} else
|
|
dc.col[i] = dc.xft_col[i].pixel;
|
|
}
|
|
|
|
/* 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++) {
|
|
xft_color.red = r == 0 ? 0 : 0x3737 + 0x2828 * r;
|
|
xft_color.green = g == 0 ? 0 : 0x3737 + 0x2828 * g;
|
|
xft_color.blue = b == 0 ? 0 : 0x3737 + 0x2828 * b;
|
|
if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &xft_color, &dc.xft_col[i])) {
|
|
dc.col[i] = white;
|
|
fprintf(stderr, "Could not allocate color %d\n", i);
|
|
} else
|
|
dc.col[i] = dc.xft_col[i].pixel;
|
|
i++;
|
|
}
|
|
|
|
for(r = 0; r < 24; r++, i++) {
|
|
xft_color.red = xft_color.green = xft_color.blue = 0x0808 + 0x0a0a * r;
|
|
if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &xft_color, &dc.xft_col[i])) {
|
|
dc.col[i] = white;
|
|
fprintf(stderr, "Could not allocate color %d\n", i);
|
|
} else
|
|
dc.col[i] = dc.xft_col[i].pixel;
|
|
}
|
|
}
|
|
|
|
void
|
|
xclear(int x1, int y1, int x2, int y2) {
|
|
XSetForeground(xw.dpy, dc.gc, dc.col[IS_SET(MODE_REVERSE) ? DefaultFG : DefaultBG]);
|
|
XFillRectangle(xw.dpy, xw.buf, dc.gc,
|
|
BORDER + x1 * xw.cw, BORDER + y1 * xw.ch,
|
|
(x2-x1+1) * xw.cw, (y2-y1+1) * xw.ch);
|
|
}
|
|
|
|
void
|
|
xhints(void) {
|
|
XClassHint class = {opt_class ? opt_class : TNAME, TNAME};
|
|
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*BORDER;
|
|
sizeh->base_width = 2*BORDER;
|
|
} 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);
|
|
}
|
|
|
|
void
|
|
xinitfont(Font *f, char *fontstr) {
|
|
f->xft_set = XftFontOpenName(xw.dpy, xw.scr, fontstr);
|
|
|
|
if(!f->xft_set)
|
|
die("st: can't open font %s.\n", fontstr);
|
|
|
|
f->ascent = f->xft_set->ascent;
|
|
f->descent = f->xft_set->descent;
|
|
f->lbearing = 0;
|
|
f->rbearing = f->xft_set->max_advance_width;
|
|
}
|
|
|
|
void
|
|
initfonts(char *fontstr, char *bfontstr, char *ifontstr, char *ibfontstr) {
|
|
xinitfont(&dc.font, fontstr);
|
|
xinitfont(&dc.bfont, bfontstr);
|
|
xinitfont(&dc.ifont, ifontstr);
|
|
xinitfont(&dc.ibfont, ibfontstr);
|
|
}
|
|
|
|
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 */
|
|
initfonts(FONT, BOLDFONT, ITALICFONT, ITALICBOLDFONT);
|
|
|
|
/* XXX: Assuming same size for bold font */
|
|
xw.cw = dc.font.rbearing - dc.font.lbearing;
|
|
xw.ch = dc.font.ascent + dc.font.descent;
|
|
|
|
/* 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*BORDER + term.row * xw.ch;
|
|
xw.w = 2*BORDER + term.col * xw.cw;
|
|
xw.fx = 0;
|
|
xw.fy = 0;
|
|
}
|
|
|
|
attrs.background_pixel = dc.col[DefaultBG];
|
|
attrs.border_pixel = dc.col[DefaultBG];
|
|
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.xft_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);
|
|
/* gc */
|
|
dc.gc = XCreateGC(xw.dpy, xw.win, 0, 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);
|
|
|
|
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 fg = base.fg, bg = base.bg, temp;
|
|
int winx = BORDER+x*xw.cw, winy = BORDER+y*xw.ch + dc.font.ascent, width = charlen*xw.cw;
|
|
Font *font = &dc.font;
|
|
XGlyphInfo extents;
|
|
int i;
|
|
|
|
/* only switch default fg/bg if term is in RV mode */
|
|
if(IS_SET(MODE_REVERSE)) {
|
|
if(fg == DefaultFG)
|
|
fg = DefaultBG;
|
|
if(bg == DefaultBG)
|
|
bg = DefaultFG;
|
|
}
|
|
|
|
if(base.mode & ATTR_REVERSE)
|
|
temp = fg, fg = bg, bg = temp;
|
|
|
|
if(base.mode & ATTR_BOLD) {
|
|
fg += 8;
|
|
font = &dc.bfont;
|
|
}
|
|
|
|
if(base.mode & ATTR_ITALIC)
|
|
font = &dc.ifont;
|
|
if(base.mode & (ATTR_ITALIC|ATTR_ITALIC))
|
|
font = &dc.ibfont;
|
|
|
|
XSetBackground(xw.dpy, dc.gc, dc.col[bg]);
|
|
XSetForeground(xw.dpy, dc.gc, dc.col[fg]);
|
|
|
|
if(base.mode & ATTR_GFX) {
|
|
for(i = 0; i < bytelen; i++) {
|
|
char c = gfx[(uint)s[i] % 256];
|
|
if(c)
|
|
s[i] = c;
|
|
else if(s[i] > 0x5f)
|
|
s[i] -= 0x5f;
|
|
}
|
|
}
|
|
|
|
XftTextExtentsUtf8(xw.dpy, font->xft_set, (FcChar8 *)s, bytelen, &extents);
|
|
width = extents.xOff;
|
|
XftDrawRect(xw.xft_draw, &dc.xft_col[bg], winx, winy - font->ascent, width, xw.ch);
|
|
XftDrawStringUtf8(xw.xft_draw, &dc.xft_col[fg], font->xft_set, winx, winy, (FcChar8 *)s, bytelen);
|
|
|
|
if(base.mode & ATTR_UNDERLINE)
|
|
XDrawLine(xw.dpy, xw.buf, dc.gc, winx, winy+1, winx+width-1, winy+1);
|
|
}
|
|
|
|
void
|
|
xdrawcursor(void) {
|
|
static int oldx = 0;
|
|
static int 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
|
|
xclear(oldx, oldy, oldx, oldy);
|
|
|
|
/* draw the new one */
|
|
if(!(term.c.state & CURSOR_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};
|
|
|
|
xclear(0, 0, xw.w, xw.h);
|
|
tfulldirt();
|
|
draw();
|
|
XSync(xw.dpy, False); /* necessary for a good tput flash */
|
|
nanosleep(&tv, NULL);
|
|
}
|
|
|
|
void
|
|
draw() {
|
|
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);
|
|
|
|
if((sel.alt && !alt) || (!sel.alt && alt))
|
|
ena_sel = 0;
|
|
if(!(xw.state & WIN_VISIBLE))
|
|
return;
|
|
|
|
for(y = y1; y < y2; y++) {
|
|
if(!term.dirty[y])
|
|
continue;
|
|
xclear(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) {
|
|
xw.state |= WIN_FOCUSED;
|
|
xseturgency(0);
|
|
} else
|
|
xw.state &= ~WIN_FOCUSED;
|
|
}
|
|
|
|
char*
|
|
kmap(KeySym k, uint state) {
|
|
int i;
|
|
state &= ~Mod2Mask;
|
|
for(i = 0; i < LEN(key); i++) {
|
|
uint mask = key[i].mask;
|
|
if(key[i].k == k && ((state & mask) == mask || (mask == XK_NO_MOD && !state)))
|
|
return (char*)key[i].s;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
void
|
|
kpress(XEvent *ev) {
|
|
XKeyEvent *e = &ev->xkey;
|
|
KeySym ksym;
|
|
char buf[32];
|
|
char *customkey;
|
|
int len;
|
|
int meta;
|
|
int shift;
|
|
Status status;
|
|
|
|
meta = e->state & Mod1Mask;
|
|
shift = e->state & ShiftMask;
|
|
len = XmbLookupString(xw.xic, e, buf, sizeof(buf), &ksym, &status);
|
|
|
|
/* 1. custom keys from config.h */
|
|
if((customkey = kmap(ksym, e->state)))
|
|
ttywrite(customkey, strlen(customkey));
|
|
/* 2. hardcoded (overrides X lookup) */
|
|
else
|
|
switch(ksym) {
|
|
case XK_Up:
|
|
case XK_Down:
|
|
case XK_Left:
|
|
case XK_Right:
|
|
/* XXX: shift up/down doesn't work */
|
|
sprintf(buf, "\033%c%c", IS_SET(MODE_APPKEYPAD) ? 'O' : '[', (shift ? "dacb":"DACB")[ksym - XK_Left]);
|
|
ttywrite(buf, 3);
|
|
break;
|
|
case XK_Insert:
|
|
if(shift)
|
|
selpaste();
|
|
break;
|
|
case XK_Return:
|
|
if(IS_SET(MODE_CRLF))
|
|
ttywrite("\r\n", 2);
|
|
else
|
|
ttywrite("\r", 1);
|
|
break;
|
|
/* 3. X lookup */
|
|
default:
|
|
if(len > 0) {
|
|
if(meta && len == 1)
|
|
ttywrite("\033", 1);
|
|
ttywrite(buf, len);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
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;
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
resize(XEvent *e) {
|
|
int col, row;
|
|
|
|
if(e->xconfigure.width == xw.w && e->xconfigure.height == xw.h)
|
|
return;
|
|
|
|
xw.w = e->xconfigure.width;
|
|
xw.h = e->xconfigure.height;
|
|
col = (xw.w - 2*BORDER) / xw.cw;
|
|
row = (xw.h - 2*BORDER) / xw.ch;
|
|
if(col == term.col && row == term.row)
|
|
return;
|
|
|
|
xclear(0, 0, xw.w, xw.h);
|
|
tresize(col, row);
|
|
xresize(col, row);
|
|
ttyresize();
|
|
}
|
|
|
|
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, xw.win))
|
|
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 't':
|
|
if(++i < argc) opt_title = argv[i];
|
|
break;
|
|
case 'c':
|
|
if(++i < argc) opt_class = argv[i];
|
|
break;
|
|
case 'w':
|
|
if(++i < argc) opt_embed = argv[i];
|
|
break;
|
|
case 'f':
|
|
if(++i < argc) opt_io = argv[i];
|
|
break;
|
|
case 'e':
|
|
/* eat every remaining arguments */
|
|
if(++i < argc) opt_cmd = &argv[i];
|
|
goto run;
|
|
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 'v':
|
|
default:
|
|
die(USAGE);
|
|
}
|
|
}
|
|
|
|
run:
|
|
setlocale(LC_CTYPE, "");
|
|
xinit();
|
|
tnew(80, 24);
|
|
ttynew();
|
|
selinit();
|
|
run();
|
|
return 0;
|
|
}
|
|
|