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4005 lines
88 KiB
4005 lines
88 KiB
/* See LICENSE for licence details. */
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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 <pwd.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 <stdint.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 <libgen.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/Xft/Xft.h>
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#include <X11/XKBlib.h>
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#include <fontconfig/fontconfig.h>
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#include <wchar.h>
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#include "arg.h"
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char *argv0;
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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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/* 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 UTF_INVALID 0xFFFD
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#define UTF_SIZ 4
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#define ESC_BUF_SIZ (128*UTF_SIZ)
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#define ESC_ARG_SIZ 16
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#define STR_BUF_SIZ ESC_BUF_SIZ
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#define STR_ARG_SIZ ESC_ARG_SIZ
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#define DRAW_BUF_SIZ 20*1024
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#define XK_ANY_MOD UINT_MAX
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#define XK_NO_MOD 0
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#define XK_SWITCH_MOD (1<<13)
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#define REDRAW_TIMEOUT (80*1000) /* 80 ms */
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/* macros */
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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 ISCONTROLC0(c) (BETWEEN(c, 0, 0x1f) || (c) == '\177')
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#define ISCONTROLC1(c) (BETWEEN(c, 0x80, 0x9f))
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#define ISCONTROL(c) (ISCONTROLC0(c) || ISCONTROLC1(c))
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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)) != 0)
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#define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + (t1.tv_nsec-t2.tv_nsec)/1E6)
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#define MODBIT(x, set, bit) ((set) ? ((x) |= (bit)) : ((x) &= ~(bit)))
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#define TRUECOLOR(r,g,b) (1 << 24 | (r) << 16 | (g) << 8 | (b))
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#define IS_TRUECOL(x) (1 << 24 & (x))
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#define TRUERED(x) (((x) & 0xff0000) >> 8)
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#define TRUEGREEN(x) (((x) & 0xff00))
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#define TRUEBLUE(x) (((x) & 0xff) << 8)
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enum glyph_attribute {
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ATTR_NULL = 0,
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ATTR_BOLD = 1 << 0,
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ATTR_FAINT = 1 << 1,
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ATTR_ITALIC = 1 << 2,
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ATTR_UNDERLINE = 1 << 3,
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ATTR_BLINK = 1 << 4,
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ATTR_REVERSE = 1 << 5,
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ATTR_INVISIBLE = 1 << 6,
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ATTR_STRUCK = 1 << 7,
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ATTR_WRAP = 1 << 8,
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ATTR_WIDE = 1 << 9,
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ATTR_WDUMMY = 1 << 10,
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};
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enum cursor_movement {
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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_WRAPNEXT = 1,
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CURSOR_ORIGIN = 2
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};
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enum term_mode {
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MODE_WRAP = 1 << 0,
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MODE_INSERT = 1 << 1,
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MODE_APPKEYPAD = 1 << 2,
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MODE_ALTSCREEN = 1 << 3,
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MODE_CRLF = 1 << 4,
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MODE_MOUSEBTN = 1 << 5,
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MODE_MOUSEMOTION = 1 << 6,
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MODE_REVERSE = 1 << 7,
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MODE_KBDLOCK = 1 << 8,
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MODE_HIDE = 1 << 9,
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MODE_ECHO = 1 << 10,
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MODE_APPCURSOR = 1 << 11,
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MODE_MOUSESGR = 1 << 12,
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MODE_8BIT = 1 << 13,
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MODE_BLINK = 1 << 14,
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MODE_FBLINK = 1 << 15,
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MODE_FOCUS = 1 << 16,
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MODE_MOUSEX10 = 1 << 17,
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MODE_MOUSEMANY = 1 << 18,
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MODE_BRCKTPASTE = 1 << 19,
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MODE_PRINT = 1 << 20,
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MODE_MOUSE = MODE_MOUSEBTN|MODE_MOUSEMOTION|MODE_MOUSEX10\
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|MODE_MOUSEMANY,
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};
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enum charset {
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CS_GRAPHIC0,
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CS_GRAPHIC1,
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CS_UK,
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CS_USA,
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CS_MULTI,
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CS_GER,
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CS_FIN
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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, /* DCS, 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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ESC_TEST = 32, /* Enter in test mode */
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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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enum selection_type {
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SEL_REGULAR = 1,
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SEL_RECTANGULAR = 2
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};
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enum selection_snap {
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SNAP_WORD = 1,
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SNAP_LINE = 2
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};
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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 XftDraw *Draw;
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typedef XftColor Color;
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typedef struct {
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char c[UTF_SIZ]; /* character code */
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ushort mode; /* attribute flags */
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uint32_t fg; /* foreground */
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uint32_t bg; /* background */
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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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char trantbl[4]; /* charset table translation */
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int charset; /* current charset */
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int icharset; /* selected charset for sequence */
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bool numlock; /* lock numbers in keyboard */
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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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Drawable buf;
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Atom xembed, wmdeletewin, netwmname, netwmpid;
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XIM xim;
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XIC xic;
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Draw draw;
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Visual *vis;
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XSetWindowAttributes attrs;
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int scr;
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bool isfixed; /* is fixed geometry? */
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int l, t; /* left and top offset */
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int gm; /* geometry mask */
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int tw, th; /* tty width and height */
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int w, h; /* window width and 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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uint b;
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uint mask;
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char *s;
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} Mousekey;
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typedef struct {
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KeySym k;
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uint mask;
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char *s;
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/* three valued logic variables: 0 indifferent, 1 on, -1 off */
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signed char appkey; /* application keypad */
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signed char appcursor; /* application cursor */
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signed char crlf; /* crlf mode */
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} Key;
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typedef struct {
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int mode;
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int type;
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int snap;
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/*
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* Selection variables:
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* nb – normalized coordinates of the beginning of the selection
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* ne – normalized coordinates of the end of the selection
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* ob – original coordinates of the beginning of the selection
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* oe – original coordinates of the end of the selection
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*/
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struct {
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int x, y;
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} nb, ne, ob, oe;
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char *clip;
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Atom xtarget;
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bool alt;
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struct timespec tclick1;
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struct timespec tclick2;
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} Selection;
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typedef union {
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int i;
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uint ui;
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float f;
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const void *v;
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} Arg;
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typedef struct {
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uint mod;
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KeySym keysym;
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void (*func)(const Arg *);
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const Arg arg;
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} Shortcut;
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/* function definitions used in config.h */
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static void clippaste(const Arg *);
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static void numlock(const Arg *);
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static void selpaste(const Arg *);
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static void xzoom(const Arg *);
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static void xzoomabs(const Arg *);
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static void xzoomreset(const Arg *);
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static void printsel(const Arg *);
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static void printscreen(const Arg *) ;
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static void toggleprinter(const Arg *);
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/* Config.h for applying patches and the configuration. */
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#include "config.h"
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/* Font structure */
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typedef struct {
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int height;
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int width;
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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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XftFont *match;
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FcFontSet *set;
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FcPattern *pattern;
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} Font;
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/* Drawing Context */
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typedef struct {
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Color col[MAX(LEN(colorname), 256)];
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Font font, bfont, ifont, ibfont;
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GC gc;
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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(int);
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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 int eschandle(uchar ascii);
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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 int tattrset(int);
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static void tprinter(char *, size_t);
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static void tdumpsel(void);
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static void tdumpline(int);
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static void tdump(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 int tlinelen(int);
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static void tmoveto(int, int);
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static void tmoveato(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(int);
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static void tputc(char *, int);
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static void treset(void);
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static void 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 *, Glyph *, int, int);
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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 tsetdirtattr(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 techo(char *, int);
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static void tcontrolcode(uchar );
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static void tdectest(char );
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static int32_t tdefcolor(int *, int *, int);
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static void tdeftran(char);
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static inline bool match(uint, uint);
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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 ttysend(char *, size_t);
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static void ttywrite(const char *, size_t);
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static void tstrsequence(uchar c);
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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 int xsetcolorname(int, const char *);
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static int xgeommasktogravity(int);
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static int xloadfont(Font *, FcPattern *);
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static void xloadfonts(char *, double);
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static int xloadfontset(Font *);
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static void xsettitle(char *);
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static void xresettitle(void);
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static void xsetpointermotion(int);
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static void xseturgency(int);
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static void xsetsel(char *);
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static void xtermclear(int, int, int, int);
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static void xunloadfont(Font *);
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static void xunloadfonts(void);
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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 cresize(int, int);
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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 void selnormalize(void);
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static inline bool selected(int, int);
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static char *getsel(void);
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static void selcopy(void);
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static void selscroll(int, int);
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static void selsnap(int, int *, int *, int);
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static void getbuttoninfo(XEvent *);
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static void mousereport(XEvent *);
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static size_t utf8decode(char *, long *, size_t);
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static long utf8decodebyte(char, size_t *);
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static size_t utf8encode(long, char *, size_t);
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static char utf8encodebyte(long, size_t);
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static size_t utf8len(char *);
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static size_t utf8validate(long *, size_t);
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static ssize_t xwrite(int, const char *, size_t);
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static void *xmalloc(size_t);
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static void *xrealloc(void *, size_t);
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static char *xstrdup(char *);
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static void usage(void);
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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 = STDOUT_FILENO;
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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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static char *opt_font = NULL;
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static int oldbutton = 3; /* button event on startup: 3 = release */
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static char *usedfont = NULL;
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static double usedfontsize = 0;
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static double defaultfontsize = 0;
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static uchar utfbyte[UTF_SIZ + 1] = {0x80, 0, 0xC0, 0xE0, 0xF0};
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static uchar utfmask[UTF_SIZ + 1] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8};
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static long utfmin[UTF_SIZ + 1] = { 0, 0, 0x80, 0x800, 0x10000};
|
|
static long utfmax[UTF_SIZ + 1] = {0x10FFFF, 0x7F, 0x7FF, 0xFFFF, 0x10FFFF};
|
|
|
|
/* Font Ring Cache */
|
|
enum {
|
|
FRC_NORMAL,
|
|
FRC_ITALIC,
|
|
FRC_BOLD,
|
|
FRC_ITALICBOLD
|
|
};
|
|
|
|
typedef struct {
|
|
XftFont *font;
|
|
int flags;
|
|
} Fontcache;
|
|
|
|
/* Fontcache is an array now. A new font will be appended to the array. */
|
|
static Fontcache frc[16];
|
|
static int frclen = 0;
|
|
|
|
ssize_t
|
|
xwrite(int fd, const 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;
|
|
}
|
|
|
|
char *
|
|
xstrdup(char *s) {
|
|
if((s = strdup(s)) == NULL)
|
|
die("Out of memory\n");
|
|
|
|
return s;
|
|
}
|
|
|
|
size_t
|
|
utf8decode(char *c, long *u, size_t clen) {
|
|
size_t i, j, len, type;
|
|
long udecoded;
|
|
|
|
*u = UTF_INVALID;
|
|
if(!clen)
|
|
return 0;
|
|
udecoded = utf8decodebyte(c[0], &len);
|
|
if(!BETWEEN(len, 1, UTF_SIZ))
|
|
return 1;
|
|
for(i = 1, j = 1; i < clen && j < len; ++i, ++j) {
|
|
udecoded = (udecoded << 6) | utf8decodebyte(c[i], &type);
|
|
if(type != 0)
|
|
return j;
|
|
}
|
|
if(j < len)
|
|
return 0;
|
|
*u = udecoded;
|
|
utf8validate(u, len);
|
|
return len;
|
|
}
|
|
|
|
long
|
|
utf8decodebyte(char c, size_t *i) {
|
|
for(*i = 0; *i < LEN(utfmask); ++(*i))
|
|
if(((uchar)c & utfmask[*i]) == utfbyte[*i])
|
|
return (uchar)c & ~utfmask[*i];
|
|
return 0;
|
|
}
|
|
|
|
size_t
|
|
utf8encode(long u, char *c, size_t clen) {
|
|
size_t len, i;
|
|
|
|
len = utf8validate(&u, 0);
|
|
if(clen < len)
|
|
return 0;
|
|
for(i = len - 1; i != 0; --i) {
|
|
c[i] = utf8encodebyte(u, 0);
|
|
u >>= 6;
|
|
}
|
|
c[0] = utf8encodebyte(u, len);
|
|
return len;
|
|
}
|
|
|
|
char
|
|
utf8encodebyte(long u, size_t i) {
|
|
return utfbyte[i] | (u & ~utfmask[i]);
|
|
}
|
|
|
|
size_t
|
|
utf8len(char *c) {
|
|
return utf8decode(c, &(long){0}, UTF_SIZ);
|
|
}
|
|
|
|
size_t
|
|
utf8validate(long *u, size_t i) {
|
|
if(!BETWEEN(*u, utfmin[i], utfmax[i]) || BETWEEN(*u, 0xD800, 0xDFFF))
|
|
*u = UTF_INVALID;
|
|
for(i = 1; *u > utfmax[i]; ++i)
|
|
;
|
|
return i;
|
|
}
|
|
|
|
static void
|
|
selinit(void) {
|
|
memset(&sel.tclick1, 0, sizeof(sel.tclick1));
|
|
memset(&sel.tclick2, 0, sizeof(sel.tclick2));
|
|
sel.mode = 0;
|
|
sel.ob.x = -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 int tlinelen(int y) {
|
|
int i = term.col;
|
|
|
|
if(term.line[y][i - 1].mode & ATTR_WRAP)
|
|
return i;
|
|
|
|
while(i > 0 && term.line[y][i - 1].c[0] == ' ')
|
|
--i;
|
|
|
|
return i;
|
|
}
|
|
|
|
static void
|
|
selnormalize(void) {
|
|
int i;
|
|
|
|
if(sel.ob.y == sel.oe.y || sel.type == SEL_RECTANGULAR) {
|
|
sel.nb.x = MIN(sel.ob.x, sel.oe.x);
|
|
sel.ne.x = MAX(sel.ob.x, sel.oe.x);
|
|
} else {
|
|
sel.nb.x = sel.ob.y < sel.oe.y ? sel.ob.x : sel.oe.x;
|
|
sel.ne.x = sel.ob.y < sel.oe.y ? sel.oe.x : sel.ob.x;
|
|
}
|
|
sel.nb.y = MIN(sel.ob.y, sel.oe.y);
|
|
sel.ne.y = MAX(sel.ob.y, sel.oe.y);
|
|
|
|
selsnap(sel.snap, &sel.nb.x, &sel.nb.y, -1);
|
|
selsnap(sel.snap, &sel.ne.x, &sel.ne.y, +1);
|
|
|
|
/* expand selection over line breaks */
|
|
if (sel.type == SEL_RECTANGULAR)
|
|
return;
|
|
i = tlinelen(sel.nb.y);
|
|
if (i < sel.nb.x)
|
|
sel.nb.x = i;
|
|
if (tlinelen(sel.ne.y) <= sel.ne.x)
|
|
sel.ne.x = term.col - 1;
|
|
}
|
|
|
|
static inline bool
|
|
selected(int x, int y) {
|
|
if(sel.type == SEL_RECTANGULAR)
|
|
return BETWEEN(y, sel.nb.y, sel.ne.y)
|
|
&& BETWEEN(x, sel.nb.x, sel.ne.x);
|
|
|
|
return BETWEEN(y, sel.nb.y, sel.ne.y)
|
|
&& (y != sel.nb.y || x >= sel.nb.x)
|
|
&& (y != sel.ne.y || x <= sel.ne.x);
|
|
}
|
|
|
|
void
|
|
selsnap(int mode, int *x, int *y, int direction) {
|
|
int newx, newy, xt, yt;
|
|
bool delim, prevdelim;
|
|
Glyph *gp, *prevgp;
|
|
|
|
switch(mode) {
|
|
case SNAP_WORD:
|
|
/*
|
|
* Snap around if the word wraps around at the end or
|
|
* beginning of a line.
|
|
*/
|
|
prevgp = &term.line[*y][*x];
|
|
prevdelim = strchr(worddelimiters, prevgp->c[0]) != NULL;
|
|
for(;;) {
|
|
newx = *x + direction;
|
|
newy = *y;
|
|
if(!BETWEEN(newx, 0, term.col - 1)) {
|
|
newy += direction;
|
|
newx = (newx + term.col) % term.col;
|
|
if (!BETWEEN(newy, 0, term.row - 1))
|
|
break;
|
|
|
|
if(direction > 0)
|
|
yt = *y, xt = *x;
|
|
else
|
|
yt = newy, xt = newx;
|
|
if(!(term.line[yt][xt].mode & ATTR_WRAP))
|
|
break;
|
|
}
|
|
|
|
if (newx >= tlinelen(newy))
|
|
break;
|
|
|
|
gp = &term.line[newy][newx];
|
|
delim = strchr(worddelimiters, gp->c[0]) != NULL;
|
|
if(!(gp->mode & ATTR_WDUMMY) && (delim != prevdelim
|
|
|| (delim && gp->c[0] != prevgp->c[0])))
|
|
break;
|
|
|
|
*x = newx;
|
|
*y = newy;
|
|
prevgp = gp;
|
|
prevdelim = delim;
|
|
}
|
|
break;
|
|
case SNAP_LINE:
|
|
/*
|
|
* Snap around if the the previous line or the current one
|
|
* has set ATTR_WRAP at its end. Then the whole next or
|
|
* previous line will be selected.
|
|
*/
|
|
*x = (direction < 0) ? 0 : term.col - 1;
|
|
if(direction < 0 && *y > 0) {
|
|
for(; *y > 0; *y += direction) {
|
|
if(!(term.line[*y-1][term.col-1].mode
|
|
& ATTR_WRAP)) {
|
|
break;
|
|
}
|
|
}
|
|
} else if(direction > 0 && *y < term.row-1) {
|
|
for(; *y < term.row; *y += direction) {
|
|
if(!(term.line[*y][term.col-1].mode
|
|
& ATTR_WRAP)) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
void
|
|
getbuttoninfo(XEvent *e) {
|
|
int type;
|
|
uint state = e->xbutton.state & ~(Button1Mask | forceselmod);
|
|
|
|
sel.alt = IS_SET(MODE_ALTSCREEN);
|
|
|
|
sel.oe.x = x2col(e->xbutton.x);
|
|
sel.oe.y = y2row(e->xbutton.y);
|
|
selnormalize();
|
|
|
|
sel.type = SEL_REGULAR;
|
|
for(type = 1; type < LEN(selmasks); ++type) {
|
|
if(match(selmasks[type], state)) {
|
|
sel.type = type;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
mousereport(XEvent *e) {
|
|
int x = x2col(e->xbutton.x), y = y2row(e->xbutton.y),
|
|
button = e->xbutton.button, state = e->xbutton.state,
|
|
len;
|
|
char buf[40];
|
|
static int ox, oy;
|
|
|
|
/* from urxvt */
|
|
if(e->xbutton.type == MotionNotify) {
|
|
if(x == ox && y == oy)
|
|
return;
|
|
if(!IS_SET(MODE_MOUSEMOTION) && !IS_SET(MODE_MOUSEMANY))
|
|
return;
|
|
/* MOUSE_MOTION: no reporting if no button is pressed */
|
|
if(IS_SET(MODE_MOUSEMOTION) && oldbutton == 3)
|
|
return;
|
|
|
|
button = oldbutton + 32;
|
|
ox = x;
|
|
oy = y;
|
|
} else {
|
|
if(!IS_SET(MODE_MOUSESGR) && e->xbutton.type == ButtonRelease) {
|
|
button = 3;
|
|
} else {
|
|
button -= Button1;
|
|
if(button >= 3)
|
|
button += 64 - 3;
|
|
}
|
|
if(e->xbutton.type == ButtonPress) {
|
|
oldbutton = button;
|
|
ox = x;
|
|
oy = y;
|
|
} else if(e->xbutton.type == ButtonRelease) {
|
|
oldbutton = 3;
|
|
/* MODE_MOUSEX10: no button release reporting */
|
|
if(IS_SET(MODE_MOUSEX10))
|
|
return;
|
|
if (button == 64 || button == 65)
|
|
return;
|
|
}
|
|
}
|
|
|
|
if(!IS_SET(MODE_MOUSEX10)) {
|
|
button += (state & ShiftMask ? 4 : 0)
|
|
+ (state & Mod4Mask ? 8 : 0)
|
|
+ (state & ControlMask ? 16 : 0);
|
|
}
|
|
|
|
len = 0;
|
|
if(IS_SET(MODE_MOUSESGR)) {
|
|
len = snprintf(buf, sizeof(buf), "\033[<%d;%d;%d%c",
|
|
button, x+1, y+1,
|
|
e->xbutton.type == ButtonRelease ? 'm' : 'M');
|
|
} else if(x < 223 && y < 223) {
|
|
len = snprintf(buf, sizeof(buf), "\033[M%c%c%c",
|
|
32+button, 32+x+1, 32+y+1);
|
|
} else {
|
|
return;
|
|
}
|
|
|
|
ttywrite(buf, len);
|
|
}
|
|
|
|
void
|
|
bpress(XEvent *e) {
|
|
struct timespec now;
|
|
Mousekey *mk;
|
|
|
|
if(IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) {
|
|
mousereport(e);
|
|
return;
|
|
}
|
|
|
|
for(mk = mshortcuts; mk < mshortcuts + LEN(mshortcuts); mk++) {
|
|
if(e->xbutton.button == mk->b
|
|
&& match(mk->mask, e->xbutton.state)) {
|
|
ttysend(mk->s, strlen(mk->s));
|
|
return;
|
|
}
|
|
}
|
|
|
|
if(e->xbutton.button == Button1) {
|
|
clock_gettime(CLOCK_MONOTONIC, &now);
|
|
|
|
/* Clear previous selection, logically and visually. */
|
|
selclear(NULL);
|
|
sel.mode = 1;
|
|
sel.type = SEL_REGULAR;
|
|
sel.oe.x = sel.ob.x = x2col(e->xbutton.x);
|
|
sel.oe.y = sel.ob.y = y2row(e->xbutton.y);
|
|
|
|
/*
|
|
* If the user clicks below predefined timeouts specific
|
|
* snapping behaviour is exposed.
|
|
*/
|
|
if(TIMEDIFF(now, sel.tclick2) <= tripleclicktimeout) {
|
|
sel.snap = SNAP_LINE;
|
|
} else if(TIMEDIFF(now, sel.tclick1) <= doubleclicktimeout) {
|
|
sel.snap = SNAP_WORD;
|
|
} else {
|
|
sel.snap = 0;
|
|
}
|
|
selnormalize();
|
|
|
|
/*
|
|
* Draw selection, unless it's regular and we don't want to
|
|
* make clicks visible
|
|
*/
|
|
if(sel.snap != 0) {
|
|
sel.mode++;
|
|
tsetdirt(sel.nb.y, sel.ne.y);
|
|
}
|
|
sel.tclick2 = sel.tclick1;
|
|
sel.tclick1 = now;
|
|
}
|
|
}
|
|
|
|
char *
|
|
getsel(void) {
|
|
char *str, *ptr;
|
|
int y, bufsize, size, lastx, linelen;
|
|
Glyph *gp, *last;
|
|
|
|
if(sel.ob.x == -1)
|
|
return NULL;
|
|
|
|
bufsize = (term.col+1) * (sel.ne.y-sel.nb.y+1) * UTF_SIZ;
|
|
ptr = str = xmalloc(bufsize);
|
|
|
|
/* append every set & selected glyph to the selection */
|
|
for(y = sel.nb.y; y < sel.ne.y + 1; y++) {
|
|
linelen = tlinelen(y);
|
|
|
|
if(sel.type == SEL_RECTANGULAR) {
|
|
gp = &term.line[y][sel.nb.x];
|
|
lastx = sel.ne.x;
|
|
} else {
|
|
gp = &term.line[y][sel.nb.y == y ? sel.nb.x : 0];
|
|
lastx = (sel.ne.y == y) ? sel.ne.x : term.col-1;
|
|
}
|
|
last = &term.line[y][MIN(lastx, linelen-1)];
|
|
while(last >= gp && last->c[0] == ' ')
|
|
--last;
|
|
|
|
for( ; gp <= last; ++gp) {
|
|
if(gp->mode & ATTR_WDUMMY)
|
|
continue;
|
|
|
|
size = utf8len(gp->c);
|
|
memcpy(ptr, gp->c, size);
|
|
ptr += size;
|
|
}
|
|
|
|
/*
|
|
* Copy and pasting of line endings is inconsistent
|
|
* in the inconsistent terminal and GUI world.
|
|
* The best solution seems like to produce '\n' when
|
|
* something is copied from st and convert '\n' to
|
|
* '\r', when something to be pasted is received by
|
|
* st.
|
|
* FIXME: Fix the computer world.
|
|
*/
|
|
if((y < sel.ne.y || lastx >= linelen) && !(last->mode & ATTR_WRAP))
|
|
*ptr++ = '\n';
|
|
}
|
|
*ptr = 0;
|
|
return str;
|
|
}
|
|
|
|
void
|
|
selcopy(void) {
|
|
xsetsel(getsel());
|
|
}
|
|
|
|
void
|
|
selnotify(XEvent *e) {
|
|
ulong nitems, ofs, rem;
|
|
int format;
|
|
uchar *data, *last, *repl;
|
|
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;
|
|
}
|
|
|
|
/*
|
|
* As seen in getsel:
|
|
* Line endings are inconsistent in the terminal and GUI world
|
|
* copy and pasting. When receiving some selection data,
|
|
* replace all '\n' with '\r'.
|
|
* FIXME: Fix the computer world.
|
|
*/
|
|
repl = data;
|
|
last = data + nitems * format / 8;
|
|
while((repl = memchr(repl, '\n', last - repl))) {
|
|
*repl++ = '\r';
|
|
}
|
|
|
|
if(IS_SET(MODE_BRCKTPASTE))
|
|
ttywrite("\033[200~", 6);
|
|
ttysend((char *)data, nitems * format / 8);
|
|
if(IS_SET(MODE_BRCKTPASTE))
|
|
ttywrite("\033[201~", 6);
|
|
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
|
|
clippaste(const Arg *dummy) {
|
|
Atom clipboard;
|
|
|
|
clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
|
|
XConvertSelection(xw.dpy, clipboard, sel.xtarget, XA_PRIMARY,
|
|
xw.win, CurrentTime);
|
|
}
|
|
|
|
void
|
|
selclear(XEvent *e) {
|
|
if(sel.ob.x == -1)
|
|
return;
|
|
sel.ob.x = -1;
|
|
tsetdirt(sel.nb.y, sel.ne.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) {
|
|
if(IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) {
|
|
mousereport(e);
|
|
return;
|
|
}
|
|
|
|
if(e->xbutton.button == Button2) {
|
|
selpaste(NULL);
|
|
} else if(e->xbutton.button == Button1) {
|
|
if(sel.mode < 2) {
|
|
selclear(NULL);
|
|
} else {
|
|
getbuttoninfo(e);
|
|
selcopy();
|
|
}
|
|
sel.mode = 0;
|
|
tsetdirt(sel.nb.y, sel.ne.y);
|
|
}
|
|
}
|
|
|
|
void
|
|
bmotion(XEvent *e) {
|
|
int oldey, oldex, oldsby, oldsey;
|
|
|
|
if(IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) {
|
|
mousereport(e);
|
|
return;
|
|
}
|
|
|
|
if(!sel.mode)
|
|
return;
|
|
|
|
sel.mode++;
|
|
oldey = sel.oe.y;
|
|
oldex = sel.oe.x;
|
|
oldsby = sel.nb.y;
|
|
oldsey = sel.ne.y;
|
|
getbuttoninfo(e);
|
|
|
|
if(oldey != sel.oe.y || oldex != sel.oe.x)
|
|
tsetdirt(MIN(sel.nb.y, oldsby), MAX(sel.ne.y, oldsey));
|
|
}
|
|
|
|
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, *sh, *prog;
|
|
const struct passwd *pw;
|
|
char buf[sizeof(long) * 8 + 1];
|
|
|
|
errno = 0;
|
|
if((pw = getpwuid(getuid())) == NULL) {
|
|
if(errno)
|
|
die("getpwuid:%s\n", strerror(errno));
|
|
else
|
|
die("who are you?\n");
|
|
}
|
|
|
|
if (!(sh = getenv("SHELL"))) {
|
|
sh = (pw->pw_shell[0]) ? pw->pw_shell : shell;
|
|
}
|
|
|
|
if(opt_cmd)
|
|
prog = opt_cmd[0];
|
|
else if(utmp)
|
|
prog = utmp;
|
|
else
|
|
prog = sh;
|
|
args = (opt_cmd) ? opt_cmd : (char *[]) {prog, NULL};
|
|
|
|
snprintf(buf, sizeof(buf), "%lu", xw.win);
|
|
|
|
unsetenv("COLUMNS");
|
|
unsetenv("LINES");
|
|
unsetenv("TERMCAP");
|
|
setenv("LOGNAME", pw->pw_name, 1);
|
|
setenv("USER", pw->pw_name, 1);
|
|
setenv("SHELL", sh, 1);
|
|
setenv("HOME", pw->pw_dir, 1);
|
|
setenv("TERM", termname, 1);
|
|
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);
|
|
|
|
execvp(prog, args);
|
|
_exit(EXIT_FAILURE);
|
|
}
|
|
|
|
void
|
|
sigchld(int a) {
|
|
int stat, ret;
|
|
|
|
if(waitpid(pid, &stat, 0) < 0)
|
|
die("Waiting for pid %hd failed: %s\n", pid, strerror(errno));
|
|
|
|
ret = WIFEXITED(stat) ? WEXITSTATUS(stat) : EXIT_FAILURE;
|
|
if (ret != EXIT_SUCCESS)
|
|
die("child finished with error '%d'\n", stat);
|
|
exit(EXIT_SUCCESS);
|
|
}
|
|
|
|
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", strerror(errno));
|
|
|
|
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", strerror(errno));
|
|
close(s);
|
|
close(m);
|
|
execsh();
|
|
break;
|
|
default:
|
|
close(s);
|
|
cmdfd = m;
|
|
signal(SIGCHLD, sigchld);
|
|
if(opt_io) {
|
|
term.mode |= MODE_PRINT;
|
|
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));
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
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 unicodep;
|
|
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", strerror(errno));
|
|
|
|
/* process every complete utf8 char */
|
|
buflen += ret;
|
|
ptr = buf;
|
|
while((charsize = utf8decode(ptr, &unicodep, buflen))) {
|
|
utf8encode(unicodep, s, UTF_SIZ);
|
|
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(xwrite(cmdfd, s, n) == -1)
|
|
die("write error on tty: %s\n", strerror(errno));
|
|
}
|
|
|
|
void
|
|
ttysend(char *s, size_t n) {
|
|
ttywrite(s, n);
|
|
if(IS_SET(MODE_ECHO))
|
|
techo(s, n);
|
|
}
|
|
|
|
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", strerror(errno));
|
|
}
|
|
|
|
int
|
|
tattrset(int attr) {
|
|
int i, j;
|
|
|
|
for(i = 0; i < term.row-1; i++) {
|
|
for(j = 0; j < term.col-1; j++) {
|
|
if(term.line[i][j].mode & attr)
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
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
|
|
tsetdirtattr(int attr) {
|
|
int i, j;
|
|
|
|
for(i = 0; i < term.row-1; i++) {
|
|
for(j = 0; j < term.col-1; j++) {
|
|
if(term.line[i][j].mode & attr) {
|
|
tsetdirt(i, i);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
tfulldirt(void) {
|
|
tsetdirt(0, term.row-1);
|
|
}
|
|
|
|
void
|
|
tcursor(int mode) {
|
|
static TCursor c[2];
|
|
bool alt = IS_SET(MODE_ALTSCREEN);
|
|
|
|
if(mode == CURSOR_SAVE) {
|
|
c[alt] = term.c;
|
|
} else if(mode == CURSOR_LOAD) {
|
|
term.c = c[alt];
|
|
tmoveto(c[alt].x, c[alt].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;
|
|
memset(term.trantbl, sizeof(term.trantbl), CS_USA);
|
|
term.charset = 0;
|
|
|
|
for(i = 0; i < 2; i++) {
|
|
tmoveto(0, 0);
|
|
tcursor(CURSOR_SAVE);
|
|
tclearregion(0, 0, term.col-1, term.row-1);
|
|
tswapscreen();
|
|
}
|
|
}
|
|
|
|
void
|
|
tnew(int col, int row) {
|
|
term = (Term){ .c = { .attr = { .fg = defaultfg, .bg = defaultbg } } };
|
|
tresize(col, row);
|
|
term.numlock = 1;
|
|
|
|
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);
|
|
|
|
tsetdirt(orig, term.bot-n);
|
|
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;
|
|
}
|
|
|
|
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);
|
|
tsetdirt(orig+n, term.bot);
|
|
|
|
for(i = orig; i <= term.bot-n; i++) {
|
|
temp = term.line[i];
|
|
term.line[i] = term.line[i+n];
|
|
term.line[i+n] = temp;
|
|
}
|
|
|
|
selscroll(orig, -n);
|
|
}
|
|
|
|
void
|
|
selscroll(int orig, int n) {
|
|
if(sel.ob.x == -1)
|
|
return;
|
|
|
|
if(BETWEEN(sel.ob.y, orig, term.bot) || BETWEEN(sel.oe.y, orig, term.bot)) {
|
|
if((sel.ob.y += n) > term.bot || (sel.oe.y += n) < term.top) {
|
|
selclear(NULL);
|
|
return;
|
|
}
|
|
if(sel.type == SEL_RECTANGULAR) {
|
|
if(sel.ob.y < term.top)
|
|
sel.ob.y = term.top;
|
|
if(sel.oe.y > term.bot)
|
|
sel.oe.y = term.bot;
|
|
} else {
|
|
if(sel.ob.y < term.top) {
|
|
sel.ob.y = term.top;
|
|
sel.ob.x = 0;
|
|
}
|
|
if(sel.oe.y > term.bot) {
|
|
sel.oe.y = term.bot;
|
|
sel.oe.x = term.col;
|
|
}
|
|
}
|
|
selnormalize();
|
|
}
|
|
}
|
|
|
|
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) {
|
|
char *p = csiescseq.buf, *np;
|
|
long int v;
|
|
|
|
csiescseq.narg = 0;
|
|
if(*p == '?') {
|
|
csiescseq.priv = 1;
|
|
p++;
|
|
}
|
|
|
|
csiescseq.buf[csiescseq.len] = '\0';
|
|
while(p < csiescseq.buf+csiescseq.len) {
|
|
np = NULL;
|
|
v = strtol(p, &np, 10);
|
|
if(np == p)
|
|
v = 0;
|
|
if(v == LONG_MAX || v == LONG_MIN)
|
|
v = -1;
|
|
csiescseq.arg[csiescseq.narg++] = v;
|
|
p = np;
|
|
if(*p != ';' || csiescseq.narg == ESC_ARG_SIZ)
|
|
break;
|
|
p++;
|
|
}
|
|
csiescseq.mode = *p;
|
|
}
|
|
|
|
/* 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(term.trantbl[term.charset] == CS_GRAPHIC0) {
|
|
if(BETWEEN(c[0], 0x41, 0x7e) && vt100_0[c[0] - 0x41]) {
|
|
c = vt100_0[c[0] - 0x41];
|
|
}
|
|
}
|
|
|
|
if(term.line[y][x].mode & ATTR_WIDE) {
|
|
if(x+1 < term.col) {
|
|
term.line[y][x+1].c[0] = ' ';
|
|
term.line[y][x+1].mode &= ~ATTR_WDUMMY;
|
|
}
|
|
} else if(term.line[y][x].mode & ATTR_WDUMMY) {
|
|
term.line[y][x-1].c[0] = ' ';
|
|
term.line[y][x-1].mode &= ~ATTR_WIDE;
|
|
}
|
|
|
|
term.dirty[y] = 1;
|
|
term.line[y][x] = *attr;
|
|
memcpy(term.line[y][x].c, c, UTF_SIZ);
|
|
}
|
|
|
|
void
|
|
tclearregion(int x1, int y1, int x2, int y2) {
|
|
int x, y, temp;
|
|
Glyph *gp;
|
|
|
|
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++) {
|
|
gp = &term.line[y][x];
|
|
if(selected(x, y))
|
|
selclear(NULL);
|
|
gp->fg = term.c.attr.fg;
|
|
gp->bg = term.c.attr.bg;
|
|
gp->mode = 0;
|
|
memcpy(gp->c, " ", 2);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
tdeletechar(int n) {
|
|
int dst, src, size;
|
|
Glyph *line;
|
|
|
|
LIMIT(n, 0, term.col - term.c.x);
|
|
|
|
dst = term.c.x;
|
|
src = term.c.x + n;
|
|
size = term.col - src;
|
|
line = term.line[term.c.y];
|
|
|
|
memmove(&line[dst], &line[src], size * sizeof(Glyph));
|
|
tclearregion(term.col-n, term.c.y, term.col-1, term.c.y);
|
|
}
|
|
|
|
void
|
|
tinsertblank(int n) {
|
|
int dst, src, size;
|
|
Glyph *line;
|
|
|
|
LIMIT(n, 0, term.col - term.c.x);
|
|
|
|
dst = term.c.x + n;
|
|
src = term.c.x;
|
|
size = term.col - dst;
|
|
line = term.line[term.c.y];
|
|
|
|
memmove(&line[dst], &line[src], size * sizeof(Glyph));
|
|
tclearregion(src, term.c.y, dst - 1, term.c.y);
|
|
}
|
|
|
|
void
|
|
tinsertblankline(int n) {
|
|
if(BETWEEN(term.c.y, term.top, term.bot))
|
|
tscrolldown(term.c.y, n);
|
|
}
|
|
|
|
void
|
|
tdeleteline(int n) {
|
|
if(BETWEEN(term.c.y, term.top, term.bot))
|
|
tscrollup(term.c.y, n);
|
|
}
|
|
|
|
int32_t
|
|
tdefcolor(int *attr, int *npar, int l) {
|
|
int32_t idx = -1;
|
|
uint r, g, b;
|
|
|
|
switch (attr[*npar + 1]) {
|
|
case 2: /* direct color in RGB space */
|
|
if (*npar + 4 >= l) {
|
|
fprintf(stderr,
|
|
"erresc(38): Incorrect number of parameters (%d)\n",
|
|
*npar);
|
|
break;
|
|
}
|
|
r = attr[*npar + 2];
|
|
g = attr[*npar + 3];
|
|
b = attr[*npar + 4];
|
|
*npar += 4;
|
|
if(!BETWEEN(r, 0, 255) || !BETWEEN(g, 0, 255) || !BETWEEN(b, 0, 255))
|
|
fprintf(stderr, "erresc: bad rgb color (%d,%d,%d)\n",
|
|
r, g, b);
|
|
else
|
|
idx = TRUECOLOR(r, g, b);
|
|
break;
|
|
case 5: /* indexed color */
|
|
if (*npar + 2 >= l) {
|
|
fprintf(stderr,
|
|
"erresc(38): Incorrect number of parameters (%d)\n",
|
|
*npar);
|
|
break;
|
|
}
|
|
*npar += 2;
|
|
if(!BETWEEN(attr[*npar], 0, 255))
|
|
fprintf(stderr, "erresc: bad fgcolor %d\n", attr[*npar]);
|
|
else
|
|
idx = attr[*npar];
|
|
break;
|
|
case 0: /* implemented defined (only foreground) */
|
|
case 1: /* transparent */
|
|
case 3: /* direct color in CMY space */
|
|
case 4: /* direct color in CMYK space */
|
|
default:
|
|
fprintf(stderr,
|
|
"erresc(38): gfx attr %d unknown\n", attr[*npar]);
|
|
break;
|
|
}
|
|
|
|
return idx;
|
|
}
|
|
|
|
void
|
|
tsetattr(int *attr, int l) {
|
|
int i;
|
|
int32_t idx;
|
|
|
|
for(i = 0; i < l; i++) {
|
|
switch(attr[i]) {
|
|
case 0:
|
|
term.c.attr.mode &= ~(
|
|
ATTR_BOLD |
|
|
ATTR_FAINT |
|
|
ATTR_ITALIC |
|
|
ATTR_UNDERLINE |
|
|
ATTR_BLINK |
|
|
ATTR_REVERSE |
|
|
ATTR_INVISIBLE |
|
|
ATTR_STRUCK );
|
|
term.c.attr.fg = defaultfg;
|
|
term.c.attr.bg = defaultbg;
|
|
break;
|
|
case 1:
|
|
term.c.attr.mode |= ATTR_BOLD;
|
|
break;
|
|
case 2:
|
|
term.c.attr.mode |= ATTR_FAINT;
|
|
break;
|
|
case 3:
|
|
term.c.attr.mode |= ATTR_ITALIC;
|
|
break;
|
|
case 4:
|
|
term.c.attr.mode |= ATTR_UNDERLINE;
|
|
break;
|
|
case 5: /* slow blink */
|
|
/* FALLTHROUGH */
|
|
case 6: /* rapid blink */
|
|
term.c.attr.mode |= ATTR_BLINK;
|
|
break;
|
|
case 7:
|
|
term.c.attr.mode |= ATTR_REVERSE;
|
|
break;
|
|
case 8:
|
|
term.c.attr.mode |= ATTR_INVISIBLE;
|
|
break;
|
|
case 9:
|
|
term.c.attr.mode |= ATTR_STRUCK;
|
|
break;
|
|
case 22:
|
|
term.c.attr.mode &= ~(ATTR_BOLD | ATTR_FAINT);
|
|
break;
|
|
case 23:
|
|
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 28:
|
|
term.c.attr.mode &= ~ATTR_INVISIBLE;
|
|
break;
|
|
case 29:
|
|
term.c.attr.mode &= ~ATTR_STRUCK;
|
|
break;
|
|
case 38:
|
|
if ((idx = tdefcolor(attr, &i, l)) >= 0)
|
|
term.c.attr.fg = idx;
|
|
break;
|
|
case 39:
|
|
term.c.attr.fg = defaultfg;
|
|
break;
|
|
case 48:
|
|
if ((idx = tdefcolor(attr, &i, l)) >= 0)
|
|
term.c.attr.bg = idx;
|
|
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;
|
|
}
|
|
|
|
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) {
|
|
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(REDRAW_TIMEOUT);
|
|
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 9: /* X10 mouse compatibility mode */
|
|
xsetpointermotion(0);
|
|
MODBIT(term.mode, 0, MODE_MOUSE);
|
|
MODBIT(term.mode, set, MODE_MOUSEX10);
|
|
break;
|
|
case 1000: /* 1000: report button press */
|
|
xsetpointermotion(0);
|
|
MODBIT(term.mode, 0, MODE_MOUSE);
|
|
MODBIT(term.mode, set, MODE_MOUSEBTN);
|
|
break;
|
|
case 1002: /* 1002: report motion on button press */
|
|
xsetpointermotion(0);
|
|
MODBIT(term.mode, 0, MODE_MOUSE);
|
|
MODBIT(term.mode, set, MODE_MOUSEMOTION);
|
|
break;
|
|
case 1003: /* 1003: enable all mouse motions */
|
|
xsetpointermotion(set);
|
|
MODBIT(term.mode, 0, MODE_MOUSE);
|
|
MODBIT(term.mode, set, MODE_MOUSEMANY);
|
|
break;
|
|
case 1004: /* 1004: send focus events to tty */
|
|
MODBIT(term.mode, set, MODE_FOCUS);
|
|
break;
|
|
case 1006: /* 1006: extended reporting mode */
|
|
MODBIT(term.mode, set, MODE_MOUSESGR);
|
|
break;
|
|
case 1034:
|
|
MODBIT(term.mode, set, MODE_8BIT);
|
|
break;
|
|
case 1049: /* swap screen & set/restore cursor as xterm */
|
|
if (!allowaltscreen)
|
|
break;
|
|
tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
|
|
/* FALLTHROUGH */
|
|
case 47: /* swap screen */
|
|
case 1047:
|
|
if (!allowaltscreen)
|
|
break;
|
|
alt = IS_SET(MODE_ALTSCREEN);
|
|
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;
|
|
/* FALLTHROUGH */
|
|
case 1048:
|
|
tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
|
|
break;
|
|
case 2004: /* 2004: bracketed paste mode */
|
|
MODBIT(term.mode, set, MODE_BRCKTPASTE);
|
|
break;
|
|
/* Not implemented mouse modes. See comments there. */
|
|
case 1001: /* mouse highlight mode; can hang the
|
|
terminal by design when implemented. */
|
|
case 1005: /* UTF-8 mouse mode; will confuse
|
|
applications not supporting UTF-8
|
|
and luit. */
|
|
case 1015: /* urxvt mangled mouse mode; incompatible
|
|
and can be mistaken for other control
|
|
codes. */
|
|
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;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
csihandle(void) {
|
|
char buf[40];
|
|
int len;
|
|
|
|
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 'i': /* MC -- Media Copy */
|
|
switch(csiescseq.arg[0]) {
|
|
case 0:
|
|
tdump();
|
|
break;
|
|
case 1:
|
|
tdumpline(term.c.y);
|
|
break;
|
|
case 2:
|
|
tdumpsel();
|
|
break;
|
|
case 4:
|
|
term.mode &= ~MODE_PRINT;
|
|
break;
|
|
case 5:
|
|
term.mode |= MODE_PRINT;
|
|
break;
|
|
}
|
|
break;
|
|
case 'c': /* DA -- Device Attributes */
|
|
if(csiescseq.arg[0] == 0)
|
|
ttywrite(vtiden, sizeof(vtiden) - 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);
|
|
tputtab(csiescseq.arg[0]);
|
|
break;
|
|
case 'J': /* ED -- Clear screen */
|
|
selclear(NULL);
|
|
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] - 1, 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);
|
|
tputtab(-csiescseq.arg[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 'n': /* DSR – Device Status Report (cursor position) */
|
|
if (csiescseq.arg[0] == 6) {
|
|
len = snprintf(buf, sizeof(buf),"\033[%i;%iR",
|
|
term.c.y+1, term.c.x+1);
|
|
ttywrite(buf, len);
|
|
}
|
|
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 = NULL;
|
|
int j, narg, par;
|
|
|
|
term.esc &= ~(ESC_STR_END|ESC_STR);
|
|
strparse();
|
|
narg = strescseq.narg;
|
|
par = atoi(strescseq.args[0]);
|
|
|
|
switch(strescseq.type) {
|
|
case ']': /* OSC -- Operating System Command */
|
|
switch(par) {
|
|
case 0:
|
|
case 1:
|
|
case 2:
|
|
if(narg > 1)
|
|
xsettitle(strescseq.args[1]);
|
|
return;
|
|
case 4: /* color set */
|
|
if(narg < 3)
|
|
break;
|
|
p = strescseq.args[2];
|
|
/* FALLTHROUGH */
|
|
case 104: /* color reset, here p = NULL */
|
|
j = (narg > 1) ? atoi(strescseq.args[1]) : -1;
|
|
if(xsetcolorname(j, p)) {
|
|
fprintf(stderr, "erresc: invalid color %s\n", p);
|
|
} else {
|
|
/*
|
|
* TODO if defaultbg color is changed, borders
|
|
* are dirty
|
|
*/
|
|
redraw(0);
|
|
}
|
|
return;
|
|
}
|
|
break;
|
|
case 'k': /* old title set compatibility */
|
|
xsettitle(strescseq.args[0]);
|
|
return;
|
|
case 'P': /* DCS -- Device Control String */
|
|
case '_': /* APC -- Application Program Command */
|
|
case '^': /* PM -- Privacy Message */
|
|
return;
|
|
}
|
|
|
|
fprintf(stderr, "erresc: unknown str ");
|
|
strdump();
|
|
}
|
|
|
|
void
|
|
strparse(void) {
|
|
char *p = strescseq.buf;
|
|
|
|
strescseq.narg = 0;
|
|
strescseq.buf[strescseq.len] = '\0';
|
|
while(p && strescseq.narg < STR_ARG_SIZ)
|
|
strescseq.args[strescseq.narg++] = strsep(&p, ";");
|
|
}
|
|
|
|
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(c == '\0') {
|
|
return;
|
|
} else 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
|
|
tprinter(char *s, size_t len) {
|
|
if(iofd != -1 && xwrite(iofd, s, len) < 0) {
|
|
fprintf(stderr, "Error writing in %s:%s\n",
|
|
opt_io, strerror(errno));
|
|
close(iofd);
|
|
iofd = -1;
|
|
}
|
|
}
|
|
|
|
void
|
|
toggleprinter(const Arg *arg) {
|
|
term.mode ^= MODE_PRINT;
|
|
}
|
|
|
|
void
|
|
printscreen(const Arg *arg) {
|
|
tdump();
|
|
}
|
|
|
|
void
|
|
printsel(const Arg *arg) {
|
|
tdumpsel();
|
|
}
|
|
|
|
void
|
|
tdumpsel(void) {
|
|
char *ptr;
|
|
|
|
if((ptr = getsel())) {
|
|
tprinter(ptr, strlen(ptr));
|
|
free(ptr);
|
|
}
|
|
}
|
|
|
|
void
|
|
tdumpline(int n) {
|
|
Glyph *bp, *end;
|
|
|
|
bp = &term.line[n][0];
|
|
end = &bp[MIN(tlinelen(n), term.col) - 1];
|
|
if(bp != end || bp->c[0] != ' ') {
|
|
for( ;bp <= end; ++bp)
|
|
tprinter(bp->c, utf8len(bp->c));
|
|
}
|
|
tprinter("\n", 1);
|
|
}
|
|
|
|
void
|
|
tdump(void) {
|
|
int i;
|
|
|
|
for(i = 0; i < term.row; ++i)
|
|
tdumpline(i);
|
|
}
|
|
|
|
void
|
|
tputtab(int n) {
|
|
uint x = term.c.x;
|
|
|
|
if(n > 0) {
|
|
while(x < term.col && n--)
|
|
for(++x; x < term.col && !term.tabs[x]; ++x)
|
|
/* nothing */ ;
|
|
} else if(n < 0) {
|
|
while(x > 0 && n++)
|
|
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(ISCONTROL((uchar) c)) { /* control code */
|
|
if(c & 0x80) {
|
|
c &= 0x7f;
|
|
tputc("^", 1);
|
|
tputc("[", 1);
|
|
} else if(c != '\n' && c != '\r' && c != '\t') {
|
|
c ^= 0x40;
|
|
tputc("^", 1);
|
|
}
|
|
tputc(&c, 1);
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
if(len)
|
|
tputc(buf, len);
|
|
}
|
|
|
|
void
|
|
tdeftran(char ascii) {
|
|
static char cs[] = "0B";
|
|
static int vcs[] = {CS_GRAPHIC0, CS_USA};
|
|
char *p;
|
|
|
|
if((p = strchr(cs, ascii)) == NULL) {
|
|
fprintf(stderr, "esc unhandled charset: ESC ( %c\n", ascii);
|
|
} else {
|
|
term.trantbl[term.icharset] = vcs[p - cs];
|
|
}
|
|
}
|
|
|
|
void
|
|
tdectest(char c) {
|
|
static char E[UTF_SIZ] = "E";
|
|
int x, y;
|
|
|
|
if(c == '8') { /* DEC screen alignment test. */
|
|
for(x = 0; x < term.col; ++x) {
|
|
for(y = 0; y < term.row; ++y)
|
|
tsetchar(E, &term.c.attr, x, y);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
tstrsequence(uchar c) {
|
|
if (c & 0x80) {
|
|
switch (c) {
|
|
case 0x90: /* DCS -- Device Control String */
|
|
c = 'P';
|
|
break;
|
|
case 0x9f: /* APC -- Application Program Command */
|
|
c = '_';
|
|
break;
|
|
case 0x9e: /* PM -- Privacy Message */
|
|
c = '^';
|
|
break;
|
|
case 0x9d: /* OSC -- Operating System Command */
|
|
c = ']';
|
|
break;
|
|
}
|
|
}
|
|
strreset();
|
|
strescseq.type = c;
|
|
term.esc |= ESC_STR;
|
|
return;
|
|
}
|
|
|
|
void
|
|
tcontrolcode(uchar ascii) {
|
|
static char question[UTF_SIZ] = "?";
|
|
|
|
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(term.esc & ESC_STR_END) {
|
|
/* backwards compatibility to xterm */
|
|
strhandle();
|
|
} else {
|
|
if(!(xw.state & WIN_FOCUSED))
|
|
xseturgency(1);
|
|
if (bellvolume)
|
|
XkbBell(xw.dpy, xw.win, bellvolume, (Atom)NULL);
|
|
}
|
|
break;
|
|
case '\033': /* ESC */
|
|
csireset();
|
|
term.esc &= ~(ESC_CSI|ESC_ALTCHARSET|ESC_TEST);
|
|
term.esc |= ESC_START;
|
|
return;
|
|
case '\016': /* SO (LS1 -- Locking shift 1) */
|
|
case '\017': /* SI (LS0 -- Locking shift 0) */
|
|
term.charset = 1 - (ascii - '\016');
|
|
return;
|
|
case '\032': /* SUB */
|
|
tsetchar(question, &term.c.attr, term.c.x, term.c.y);
|
|
case '\030': /* CAN */
|
|
csireset();
|
|
break;
|
|
case '\005': /* ENQ (IGNORED) */
|
|
case '\000': /* NUL (IGNORED) */
|
|
case '\021': /* XON (IGNORED) */
|
|
case '\023': /* XOFF (IGNORED) */
|
|
case 0177: /* DEL (IGNORED) */
|
|
return;
|
|
case 0x84: /* TODO: IND */
|
|
break;
|
|
case 0x85: /* NEL -- Next line */
|
|
tnewline(1); /* always go to first col */
|
|
break;
|
|
case 0x88: /* HTS -- Horizontal tab stop */
|
|
term.tabs[term.c.x] = 1;
|
|
break;
|
|
case 0x8d: /* TODO: RI */
|
|
case 0x8e: /* TODO: SS2 */
|
|
case 0x8f: /* TODO: SS3 */
|
|
case 0x98: /* TODO: SOS */
|
|
break;
|
|
case 0x9a: /* DECID -- Identify Terminal */
|
|
ttywrite(vtiden, sizeof(vtiden) - 1);
|
|
break;
|
|
case 0x9b: /* TODO: CSI */
|
|
case 0x9c: /* TODO: ST */
|
|
break;
|
|
case 0x90: /* DCS -- Device Control String */
|
|
case 0x9f: /* APC -- Application Program Command */
|
|
case 0x9e: /* PM -- Privacy Message */
|
|
case 0x9d: /* OSC -- Operating System Command */
|
|
tstrsequence(ascii);
|
|
return;
|
|
}
|
|
/* only CAN, SUB, \a and C1 chars interrupt a sequence */
|
|
term.esc &= ~(ESC_STR_END|ESC_STR);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* returns 1 when the sequence is finished and it hasn't to read
|
|
* more characters for this sequence, otherwise 0
|
|
*/
|
|
int
|
|
eschandle(uchar ascii) {
|
|
switch(ascii) {
|
|
case '[':
|
|
term.esc |= ESC_CSI;
|
|
return 0;
|
|
case '#':
|
|
term.esc |= ESC_TEST;
|
|
return 0;
|
|
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 */
|
|
tstrsequence(ascii);
|
|
return 0;
|
|
case 'n': /* LS2 -- Locking shift 2 */
|
|
case 'o': /* LS3 -- Locking shift 3 */
|
|
term.charset = 2 + (ascii - 'n');
|
|
break;
|
|
case '(': /* GZD4 -- set primary charset G0 */
|
|
case ')': /* G1D4 -- set secondary charset G1 */
|
|
case '*': /* G2D4 -- set tertiary charset G2 */
|
|
case '+': /* G3D4 -- set quaternary charset G3 */
|
|
term.icharset = ascii - '(';
|
|
term.esc |= ESC_ALTCHARSET;
|
|
return 0;
|
|
case 'D': /* IND -- Linefeed */
|
|
if(term.c.y == term.bot) {
|
|
tscrollup(term.top, 1);
|
|
} else {
|
|
tmoveto(term.c.x, term.c.y+1);
|
|
}
|
|
break;
|
|
case 'E': /* NEL -- Next line */
|
|
tnewline(1); /* always go to first col */
|
|
break;
|
|
case 'H': /* HTS -- Horizontal tab stop */
|
|
term.tabs[term.c.x] = 1;
|
|
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);
|
|
}
|
|
break;
|
|
case 'Z': /* DECID -- Identify Terminal */
|
|
ttywrite(vtiden, sizeof(vtiden) - 1);
|
|
break;
|
|
case 'c': /* RIS -- Reset to inital state */
|
|
treset();
|
|
xresettitle();
|
|
xloadcols();
|
|
break;
|
|
case '=': /* DECPAM -- Application keypad */
|
|
term.mode |= MODE_APPKEYPAD;
|
|
break;
|
|
case '>': /* DECPNM -- Normal keypad */
|
|
term.mode &= ~MODE_APPKEYPAD;
|
|
break;
|
|
case '7': /* DECSC -- Save Cursor */
|
|
tcursor(CURSOR_SAVE);
|
|
break;
|
|
case '8': /* DECRC -- Restore Cursor */
|
|
tcursor(CURSOR_LOAD);
|
|
break;
|
|
case '\\': /* ST -- String Terminator */
|
|
if(term.esc & ESC_STR_END)
|
|
strhandle();
|
|
break;
|
|
default:
|
|
fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n",
|
|
(uchar) ascii, isprint(ascii)? ascii:'.');
|
|
break;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
void
|
|
tputc(char *c, int len) {
|
|
uchar ascii;
|
|
bool control;
|
|
long unicodep;
|
|
int width;
|
|
Glyph *gp;
|
|
|
|
if(len == 1) {
|
|
width = 1;
|
|
unicodep = ascii = *c;
|
|
} else {
|
|
utf8decode(c, &unicodep, UTF_SIZ);
|
|
if ((width = wcwidth(unicodep)) == -1) {
|
|
c = "\357\277\275"; /* UTF_INVALID */
|
|
width = 1;
|
|
}
|
|
control = ISCONTROLC1(unicodep);
|
|
ascii = unicodep;
|
|
}
|
|
|
|
if(IS_SET(MODE_PRINT))
|
|
tprinter(c, len);
|
|
control = ISCONTROL(unicodep);
|
|
|
|
/*
|
|
* STR sequence must be checked before anything else
|
|
* because it uses all following characters until it
|
|
* receives a ESC, a SUB, a ST or any other C1 control
|
|
* character.
|
|
*/
|
|
if(term.esc & ESC_STR) {
|
|
if(width == 1 &&
|
|
(ascii == '\a' || ascii == 030 ||
|
|
ascii == 032 || ascii == 033 ||
|
|
ISCONTROLC1(unicodep))) {
|
|
term.esc &= ~(ESC_START|ESC_STR);
|
|
term.esc |= ESC_STR_END;
|
|
} else if(strescseq.len + len < sizeof(strescseq.buf) - 1) {
|
|
memmove(&strescseq.buf[strescseq.len], c, len);
|
|
strescseq.len += len;
|
|
return;
|
|
} else {
|
|
/*
|
|
* Here is a bug in terminals. If the user never sends
|
|
* some code to stop the str or esc command, then st
|
|
* will stop responding. But this is better than
|
|
* silently failing with unknown characters. At least
|
|
* then users will report back.
|
|
*
|
|
* In the case users ever get fixed, here is the code:
|
|
*/
|
|
/*
|
|
* 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) {
|
|
tcontrolcode(ascii);
|
|
/*
|
|
* control codes are not shown ever
|
|
*/
|
|
return;
|
|
} else if(term.esc & ESC_START) {
|
|
if(term.esc & ESC_CSI) {
|
|
csiescseq.buf[csiescseq.len++] = ascii;
|
|
if(BETWEEN(ascii, 0x40, 0x7E)
|
|
|| csiescseq.len >= \
|
|
sizeof(csiescseq.buf)-1) {
|
|
term.esc = 0;
|
|
csiparse();
|
|
csihandle();
|
|
}
|
|
return;
|
|
} else if(term.esc & ESC_ALTCHARSET) {
|
|
tdeftran(ascii);
|
|
} else if(term.esc & ESC_TEST) {
|
|
tdectest(ascii);
|
|
} else {
|
|
if (!eschandle(ascii))
|
|
return;
|
|
/* sequence already finished */
|
|
}
|
|
term.esc = 0;
|
|
/*
|
|
* All characters which form part of a sequence are not
|
|
* printed
|
|
*/
|
|
return;
|
|
}
|
|
if(sel.ob.x != -1 && BETWEEN(term.c.y, sel.ob.y, sel.oe.y))
|
|
selclear(NULL);
|
|
|
|
gp = &term.line[term.c.y][term.c.x];
|
|
if(IS_SET(MODE_WRAP) && (term.c.state & CURSOR_WRAPNEXT)) {
|
|
gp->mode |= ATTR_WRAP;
|
|
tnewline(1);
|
|
gp = &term.line[term.c.y][term.c.x];
|
|
}
|
|
|
|
if(IS_SET(MODE_INSERT) && term.c.x+width < term.col)
|
|
memmove(gp+width, gp, (term.col - term.c.x - width) * sizeof(Glyph));
|
|
|
|
if(term.c.x+width > term.col) {
|
|
tnewline(1);
|
|
gp = &term.line[term.c.y][term.c.x];
|
|
}
|
|
|
|
tsetchar(c, &term.c.attr, term.c.x, term.c.y);
|
|
|
|
if(width == 2) {
|
|
gp->mode |= ATTR_WIDE;
|
|
if(term.c.x+1 < term.col) {
|
|
gp[1].c[0] = '\0';
|
|
gp[1].mode = ATTR_WDUMMY;
|
|
}
|
|
}
|
|
if(term.c.x+width < term.col) {
|
|
tmoveto(term.c.x+width, term.c.y);
|
|
} else {
|
|
term.c.state |= CURSOR_WRAPNEXT;
|
|
}
|
|
}
|
|
|
|
void
|
|
tresize(int col, int row) {
|
|
int i;
|
|
int minrow = MIN(row, term.row);
|
|
int mincol = MIN(col, term.col);
|
|
int slide = term.c.y - row + 1;
|
|
bool *bp;
|
|
TCursor c;
|
|
|
|
if(col < 1 || row < 1) {
|
|
fprintf(stderr,
|
|
"tresize: error resizing to %dx%d\n", col, row);
|
|
return;
|
|
}
|
|
|
|
/* 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.line[i] = xrealloc(term.line[i], col * sizeof(Glyph));
|
|
term.alt[i] = xrealloc(term.alt[i], col * sizeof(Glyph));
|
|
}
|
|
|
|
/* allocate any new rows */
|
|
for(/* i == minrow */; i < row; i++) {
|
|
term.line[i] = xmalloc(col * sizeof(Glyph));
|
|
term.alt[i] = xmalloc(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);
|
|
/* Clearing both screens (it makes dirty all lines) */
|
|
c = term.c;
|
|
for(i = 0; i < 2; i++) {
|
|
if(mincol < col && 0 < minrow) {
|
|
tclearregion(mincol, 0, col - 1, minrow - 1);
|
|
}
|
|
if(0 < col && minrow < row) {
|
|
tclearregion(0, minrow, col - 1, row - 1);
|
|
}
|
|
tswapscreen();
|
|
tcursor(CURSOR_LOAD);
|
|
}
|
|
term.c = c;
|
|
}
|
|
|
|
void
|
|
xresize(int col, int row) {
|
|
xw.tw = MAX(1, col * xw.cw);
|
|
xw.th = MAX(1, row * xw.ch);
|
|
|
|
XFreePixmap(xw.dpy, xw.buf);
|
|
xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.w, xw.h,
|
|
DefaultDepth(xw.dpy, xw.scr));
|
|
XftDrawChange(xw.draw, xw.buf);
|
|
xclear(0, 0, xw.w, xw.h);
|
|
}
|
|
|
|
static inline ushort
|
|
sixd_to_16bit(int x) {
|
|
return x == 0 ? 0 : 0x3737 + 0x2828 * x;
|
|
}
|
|
|
|
void
|
|
xloadcols(void) {
|
|
int i;
|
|
XRenderColor color = { .alpha = 0xffff };
|
|
static bool loaded;
|
|
Color *cp;
|
|
|
|
if(loaded) {
|
|
for (cp = dc.col; cp < dc.col + LEN(dc.col); ++cp)
|
|
XftColorFree(xw.dpy, xw.vis, xw.cmap, cp);
|
|
}
|
|
|
|
/* load colors [0-15] 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 [16-231] ; same colors as xterm */
|
|
for(i = 16; i < 6*6*6+16; i++) {
|
|
color.red = sixd_to_16bit( ((i-16)/36)%6 );
|
|
color.green = sixd_to_16bit( ((i-16)/6) %6 );
|
|
color.blue = sixd_to_16bit( ((i-16)/1) %6 );
|
|
if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &dc.col[i]))
|
|
die("Could not allocate color %d\n", i);
|
|
}
|
|
|
|
/* load colors [232-255] ; grayscale */
|
|
for(; i < 256; i++) {
|
|
color.red = color.green = color.blue = 0x0808 + 0x0a0a * (i-(6*6*6+16));
|
|
if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &dc.col[i]))
|
|
die("Could not allocate color %d\n", i);
|
|
}
|
|
loaded = true;
|
|
}
|
|
|
|
int
|
|
xsetcolorname(int x, const char *name) {
|
|
XRenderColor color = { .alpha = 0xffff };
|
|
Color ncolor;
|
|
|
|
if(!BETWEEN(x, 0, LEN(colorname)))
|
|
return 1;
|
|
|
|
if(!name) {
|
|
if(BETWEEN(x, 16, 16 + 215)) { /* 256 color */
|
|
color.red = sixd_to_16bit( ((x-16)/36)%6 );
|
|
color.green = sixd_to_16bit( ((x-16)/6) %6 );
|
|
color.blue = sixd_to_16bit( ((x-16)/1) %6 );
|
|
if(!XftColorAllocValue(xw.dpy, xw.vis,
|
|
xw.cmap, &color, &ncolor)) {
|
|
return 1;
|
|
}
|
|
|
|
XftColorFree(xw.dpy, xw.vis, xw.cmap, &dc.col[x]);
|
|
dc.col[x] = ncolor;
|
|
return 0;
|
|
} else if(BETWEEN(x, 16 + 216, 255)) { /* greyscale */
|
|
color.red = color.green = color.blue = \
|
|
0x0808 + 0x0a0a * (x - (16 + 216));
|
|
if(!XftColorAllocValue(xw.dpy, xw.vis,
|
|
xw.cmap, &color, &ncolor)) {
|
|
return 1;
|
|
}
|
|
|
|
XftColorFree(xw.dpy, xw.vis, xw.cmap, &dc.col[x]);
|
|
dc.col[x] = ncolor;
|
|
return 0;
|
|
} else { /* system colors */
|
|
name = colorname[x];
|
|
}
|
|
}
|
|
if(!XftColorAllocName(xw.dpy, xw.vis, xw.cmap, name, &ncolor))
|
|
return 1;
|
|
|
|
XftColorFree(xw.dpy, xw.vis, xw.cmap, &dc.col[x]);
|
|
dc.col[x] = ncolor;
|
|
return 0;
|
|
}
|
|
|
|
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();
|
|
|
|
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;
|
|
if(xw.isfixed == True) {
|
|
sizeh->flags |= PMaxSize | PMinSize;
|
|
sizeh->min_width = sizeh->max_width = xw.w;
|
|
sizeh->min_height = sizeh->max_height = xw.h;
|
|
}
|
|
if(xw.gm & (XValue|YValue)) {
|
|
sizeh->flags |= USPosition | PWinGravity;
|
|
sizeh->x = xw.l;
|
|
sizeh->y = xw.t;
|
|
sizeh->win_gravity = xgeommasktogravity(xw.gm);
|
|
}
|
|
|
|
XSetWMProperties(xw.dpy, xw.win, NULL, NULL, NULL, 0, sizeh, &wm,
|
|
&class);
|
|
XFree(sizeh);
|
|
}
|
|
|
|
int
|
|
xgeommasktogravity(int mask) {
|
|
switch(mask & (XNegative|YNegative)) {
|
|
case 0:
|
|
return NorthWestGravity;
|
|
case XNegative:
|
|
return NorthEastGravity;
|
|
case YNegative:
|
|
return SouthWestGravity;
|
|
}
|
|
return SouthEastGravity;
|
|
}
|
|
|
|
int
|
|
xloadfont(Font *f, FcPattern *pattern) {
|
|
FcPattern *match;
|
|
FcResult result;
|
|
|
|
match = FcFontMatch(NULL, pattern, &result);
|
|
if(!match)
|
|
return 1;
|
|
|
|
if(!(f->match = XftFontOpenPattern(xw.dpy, match))) {
|
|
FcPatternDestroy(match);
|
|
return 1;
|
|
}
|
|
|
|
f->set = NULL;
|
|
f->pattern = FcPatternDuplicate(pattern);
|
|
|
|
f->ascent = f->match->ascent;
|
|
f->descent = f->match->descent;
|
|
f->lbearing = 0;
|
|
f->rbearing = f->match->max_advance_width;
|
|
|
|
f->height = f->ascent + f->descent;
|
|
f->width = f->lbearing + f->rbearing;
|
|
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
xloadfonts(char *fontstr, double fontsize) {
|
|
FcPattern *pattern;
|
|
FcResult r_sz, r_psz;
|
|
double fontval;
|
|
float ceilf(float);
|
|
|
|
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 > 1) {
|
|
FcPatternDel(pattern, FC_PIXEL_SIZE);
|
|
FcPatternDel(pattern, FC_SIZE);
|
|
FcPatternAddDouble(pattern, FC_PIXEL_SIZE, (double)fontsize);
|
|
usedfontsize = fontsize;
|
|
} else {
|
|
r_psz = FcPatternGetDouble(pattern, FC_PIXEL_SIZE, 0, &fontval);
|
|
r_sz = FcPatternGetDouble(pattern, FC_SIZE, 0, &fontval);
|
|
if(r_psz == FcResultMatch) {
|
|
usedfontsize = fontval;
|
|
} else if(r_sz == FcResultMatch) {
|
|
usedfontsize = -1;
|
|
} 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;
|
|
}
|
|
defaultfontsize = usedfontsize;
|
|
}
|
|
|
|
FcConfigSubstitute(0, pattern, FcMatchPattern);
|
|
FcDefaultSubstitute(pattern);
|
|
|
|
if(xloadfont(&dc.font, pattern))
|
|
die("st: can't open font %s\n", fontstr);
|
|
|
|
if(usedfontsize < 0) {
|
|
FcPatternGetDouble(dc.font.match->pattern,
|
|
FC_PIXEL_SIZE, 0, &fontval);
|
|
usedfontsize = fontval;
|
|
if(fontsize == 0)
|
|
defaultfontsize = fontval;
|
|
}
|
|
|
|
/* Setting character width and height. */
|
|
xw.cw = ceilf(dc.font.width * cwscale);
|
|
xw.ch = ceilf(dc.font.height * chscale);
|
|
|
|
FcPatternDel(pattern, FC_SLANT);
|
|
FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC);
|
|
if(xloadfont(&dc.ifont, pattern))
|
|
die("st: can't open font %s\n", fontstr);
|
|
|
|
FcPatternDel(pattern, FC_WEIGHT);
|
|
FcPatternAddInteger(pattern, FC_WEIGHT, FC_WEIGHT_BOLD);
|
|
if(xloadfont(&dc.ibfont, pattern))
|
|
die("st: can't open font %s\n", fontstr);
|
|
|
|
FcPatternDel(pattern, FC_SLANT);
|
|
FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ROMAN);
|
|
if(xloadfont(&dc.bfont, pattern))
|
|
die("st: can't open font %s\n", fontstr);
|
|
|
|
FcPatternDestroy(pattern);
|
|
}
|
|
|
|
int
|
|
xloadfontset(Font *f) {
|
|
FcResult result;
|
|
|
|
if(!(f->set = FcFontSort(0, f->pattern, FcTrue, 0, &result)))
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
xunloadfont(Font *f) {
|
|
XftFontClose(xw.dpy, f->match);
|
|
FcPatternDestroy(f->pattern);
|
|
if(f->set)
|
|
FcFontSetDestroy(f->set);
|
|
}
|
|
|
|
void
|
|
xunloadfonts(void) {
|
|
/* Free the loaded fonts in the font cache. */
|
|
while(frclen > 0)
|
|
XftFontClose(xw.dpy, frc[--frclen].font);
|
|
|
|
xunloadfont(&dc.font);
|
|
xunloadfont(&dc.bfont);
|
|
xunloadfont(&dc.ifont);
|
|
xunloadfont(&dc.ibfont);
|
|
}
|
|
|
|
void
|
|
xzoom(const Arg *arg) {
|
|
Arg larg;
|
|
|
|
larg.i = usedfontsize + arg->i;
|
|
xzoomabs(&larg);
|
|
}
|
|
|
|
void
|
|
xzoomabs(const Arg *arg) {
|
|
xunloadfonts();
|
|
xloadfonts(usedfont, arg->i);
|
|
cresize(0, 0);
|
|
redraw(0);
|
|
xhints();
|
|
}
|
|
|
|
void
|
|
xzoomreset(const Arg *arg) {
|
|
Arg larg;
|
|
|
|
if(defaultfontsize > 0) {
|
|
larg.i = defaultfontsize;
|
|
xzoomabs(&larg);
|
|
}
|
|
}
|
|
|
|
void
|
|
xinit(void) {
|
|
XGCValues gcvalues;
|
|
Cursor cursor;
|
|
Window parent;
|
|
pid_t thispid = getpid();
|
|
|
|
if(!(xw.dpy = XOpenDisplay(NULL)))
|
|
die("Can't open display\n");
|
|
xw.scr = XDefaultScreen(xw.dpy);
|
|
xw.vis = XDefaultVisual(xw.dpy, xw.scr);
|
|
|
|
/* font */
|
|
if(!FcInit())
|
|
die("Could not init fontconfig.\n");
|
|
|
|
usedfont = (opt_font == NULL)? font : opt_font;
|
|
xloadfonts(usedfont, 0);
|
|
|
|
/* colors */
|
|
xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
|
|
xloadcols();
|
|
|
|
/* adjust fixed window geometry */
|
|
xw.w = 2 * borderpx + term.col * xw.cw;
|
|
xw.h = 2 * borderpx + term.row * xw.ch;
|
|
if(xw.gm & XNegative)
|
|
xw.l += DisplayWidth(xw.dpy, xw.scr) - xw.w - 2;
|
|
if(xw.gm & YNegative)
|
|
xw.t += DisplayWidth(xw.dpy, xw.scr) - xw.h - 2;
|
|
|
|
/* Events */
|
|
xw.attrs.background_pixel = dc.col[defaultbg].pixel;
|
|
xw.attrs.border_pixel = dc.col[defaultbg].pixel;
|
|
xw.attrs.bit_gravity = NorthWestGravity;
|
|
xw.attrs.event_mask = FocusChangeMask | KeyPressMask
|
|
| ExposureMask | VisibilityChangeMask | StructureNotifyMask
|
|
| ButtonMotionMask | ButtonPressMask | ButtonReleaseMask;
|
|
xw.attrs.colormap = xw.cmap;
|
|
|
|
if (!(opt_embed && (parent = strtol(opt_embed, NULL, 0))))
|
|
parent = XRootWindow(xw.dpy, xw.scr);
|
|
xw.win = XCreateWindow(xw.dpy, parent, xw.l, xw.t,
|
|
xw.w, xw.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
|
|
xw.vis, CWBackPixel | CWBorderPixel | CWBitGravity
|
|
| CWEventMask | CWColormap, &xw.attrs);
|
|
|
|
memset(&gcvalues, 0, sizeof(gcvalues));
|
|
gcvalues.graphics_exposures = False;
|
|
dc.gc = XCreateGC(xw.dpy, parent, GCGraphicsExposures,
|
|
&gcvalues);
|
|
xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.w, xw.h,
|
|
DefaultDepth(xw.dpy, xw.scr));
|
|
XSetForeground(xw.dpy, dc.gc, dc.col[defaultbg].pixel);
|
|
XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, xw.w, xw.h);
|
|
|
|
/* Xft rendering context */
|
|
xw.draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap);
|
|
|
|
/* input methods */
|
|
if((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) {
|
|
XSetLocaleModifiers("@im=local");
|
|
if((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) {
|
|
XSetLocaleModifiers("@im=");
|
|
if((xw.xim = XOpenIM(xw.dpy,
|
|
NULL, NULL, NULL)) == NULL) {
|
|
die("XOpenIM failed. Could not open input"
|
|
" device.\n");
|
|
}
|
|
}
|
|
}
|
|
xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing
|
|
| XIMStatusNothing, XNClientWindow, xw.win,
|
|
XNFocusWindow, xw.win, NULL);
|
|
if(xw.xic == NULL)
|
|
die("XCreateIC failed. Could not obtain input method.\n");
|
|
|
|
/* 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);
|
|
xw.netwmname = XInternAtom(xw.dpy, "_NET_WM_NAME", False);
|
|
XSetWMProtocols(xw.dpy, xw.win, &xw.wmdeletewin, 1);
|
|
|
|
xw.netwmpid = XInternAtom(xw.dpy, "_NET_WM_PID", False);
|
|
XChangeProperty(xw.dpy, xw.win, xw.netwmpid, XA_CARDINAL, 32,
|
|
PropModeReplace, (uchar *)&thispid, 1);
|
|
|
|
xresettitle();
|
|
XMapWindow(xw.dpy, xw.win);
|
|
xhints();
|
|
XSync(xw.dpy, False);
|
|
}
|
|
|
|
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, xp, i;
|
|
int frcflags;
|
|
int u8fl, u8fblen, u8cblen, doesexist;
|
|
char *u8c, *u8fs;
|
|
long unicodep;
|
|
Font *font = &dc.font;
|
|
FcResult fcres;
|
|
FcPattern *fcpattern, *fontpattern;
|
|
FcFontSet *fcsets[] = { NULL };
|
|
FcCharSet *fccharset;
|
|
Color *fg, *bg, *temp, revfg, revbg, truefg, truebg;
|
|
XRenderColor colfg, colbg;
|
|
XRectangle r;
|
|
int oneatatime;
|
|
|
|
frcflags = FRC_NORMAL;
|
|
|
|
if(base.mode & ATTR_ITALIC) {
|
|
if(base.fg == defaultfg)
|
|
base.fg = defaultitalic;
|
|
font = &dc.ifont;
|
|
frcflags = FRC_ITALIC;
|
|
} else if((base.mode & ATTR_ITALIC) && (base.mode & ATTR_BOLD)) {
|
|
if(base.fg == defaultfg)
|
|
base.fg = defaultitalic;
|
|
font = &dc.ibfont;
|
|
frcflags = FRC_ITALICBOLD;
|
|
} else if(base.mode & ATTR_UNDERLINE) {
|
|
if(base.fg == defaultfg)
|
|
base.fg = defaultunderline;
|
|
}
|
|
|
|
if(IS_TRUECOL(base.fg)) {
|
|
colfg.alpha = 0xffff;
|
|
colfg.red = TRUERED(base.fg);
|
|
colfg.green = TRUEGREEN(base.fg);
|
|
colfg.blue = TRUEBLUE(base.fg);
|
|
XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &truefg);
|
|
fg = &truefg;
|
|
} else {
|
|
fg = &dc.col[base.fg];
|
|
}
|
|
|
|
if(IS_TRUECOL(base.bg)) {
|
|
colbg.alpha = 0xffff;
|
|
colbg.green = TRUEGREEN(base.bg);
|
|
colbg.red = TRUERED(base.bg);
|
|
colbg.blue = TRUEBLUE(base.bg);
|
|
XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg, &truebg);
|
|
bg = &truebg;
|
|
} else {
|
|
bg = &dc.col[base.bg];
|
|
}
|
|
|
|
if(base.mode & ATTR_BOLD) {
|
|
/*
|
|
* change basic system colors [0-7]
|
|
* to bright system colors [8-15]
|
|
*/
|
|
if(BETWEEN(base.fg, 0, 7) && !(base.mode & ATTR_FAINT))
|
|
fg = &dc.col[base.fg + 8];
|
|
|
|
if(base.mode & ATTR_ITALIC) {
|
|
font = &dc.ibfont;
|
|
frcflags = FRC_ITALICBOLD;
|
|
} else {
|
|
font = &dc.bfont;
|
|
frcflags = FRC_BOLD;
|
|
}
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
if(base.mode & ATTR_FAINT && !(base.mode & ATTR_BOLD)) {
|
|
colfg.red = fg->color.red / 2;
|
|
colfg.green = fg->color.green / 2;
|
|
colfg.blue = fg->color.blue / 2;
|
|
XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &revfg);
|
|
fg = &revfg;
|
|
}
|
|
|
|
if(base.mode & ATTR_BLINK && term.mode & MODE_BLINK)
|
|
fg = bg;
|
|
|
|
if(base.mode & ATTR_INVISIBLE)
|
|
fg = bg;
|
|
|
|
/* 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) {
|
|
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);
|
|
|
|
/* Clean up the region we want to draw to. */
|
|
XftDrawRect(xw.draw, bg, winx, winy, width, xw.ch);
|
|
|
|
/* Set the clip region because Xft is sometimes dirty. */
|
|
r.x = 0;
|
|
r.y = 0;
|
|
r.height = xw.ch;
|
|
r.width = width;
|
|
XftDrawSetClipRectangles(xw.draw, winx, winy, &r, 1);
|
|
|
|
for(xp = winx; bytelen > 0;) {
|
|
/*
|
|
* Search for the range in the to be printed string of glyphs
|
|
* that are in the main font. Then print that range. If
|
|
* some glyph is found that is not in the font, do the
|
|
* fallback dance.
|
|
*/
|
|
u8fs = s;
|
|
u8fblen = 0;
|
|
u8fl = 0;
|
|
oneatatime = font->width != xw.cw;
|
|
for(;;) {
|
|
u8c = s;
|
|
u8cblen = utf8decode(s, &unicodep, UTF_SIZ);
|
|
s += u8cblen;
|
|
bytelen -= u8cblen;
|
|
|
|
doesexist = XftCharExists(xw.dpy, font->match, unicodep);
|
|
if(doesexist) {
|
|
u8fl++;
|
|
u8fblen += u8cblen;
|
|
if(!oneatatime && bytelen > 0)
|
|
continue;
|
|
}
|
|
|
|
if(u8fl > 0) {
|
|
XftDrawStringUtf8(xw.draw, fg,
|
|
font->match, xp,
|
|
winy + font->ascent,
|
|
(FcChar8 *)u8fs,
|
|
u8fblen);
|
|
xp += xw.cw * u8fl;
|
|
}
|
|
break;
|
|
}
|
|
if(doesexist) {
|
|
if(oneatatime)
|
|
continue;
|
|
break;
|
|
}
|
|
|
|
/* Search the font cache. */
|
|
for(i = 0; i < frclen; i++) {
|
|
if(XftCharExists(xw.dpy, frc[i].font, unicodep)
|
|
&& frc[i].flags == frcflags) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Nothing was found. */
|
|
if(i >= frclen) {
|
|
if(!font->set)
|
|
xloadfontset(font);
|
|
fcsets[0] = font->set;
|
|
|
|
/*
|
|
* Nothing was found in the cache. Now use
|
|
* some dozen of Fontconfig calls to get the
|
|
* font for one single character.
|
|
*
|
|
* Xft and fontconfig are design failures.
|
|
*/
|
|
fcpattern = FcPatternDuplicate(font->pattern);
|
|
fccharset = FcCharSetCreate();
|
|
|
|
FcCharSetAddChar(fccharset, unicodep);
|
|
FcPatternAddCharSet(fcpattern, FC_CHARSET,
|
|
fccharset);
|
|
FcPatternAddBool(fcpattern, FC_SCALABLE,
|
|
FcTrue);
|
|
|
|
FcConfigSubstitute(0, fcpattern,
|
|
FcMatchPattern);
|
|
FcDefaultSubstitute(fcpattern);
|
|
|
|
fontpattern = FcFontSetMatch(0, fcsets,
|
|
FcTrue, fcpattern, &fcres);
|
|
|
|
/*
|
|
* Overwrite or create the new cache entry.
|
|
*/
|
|
if(frclen >= LEN(frc)) {
|
|
frclen = LEN(frc) - 1;
|
|
XftFontClose(xw.dpy, frc[frclen].font);
|
|
}
|
|
|
|
frc[frclen].font = XftFontOpenPattern(xw.dpy,
|
|
fontpattern);
|
|
frc[frclen].flags = frcflags;
|
|
|
|
i = frclen;
|
|
frclen++;
|
|
|
|
FcPatternDestroy(fcpattern);
|
|
FcCharSetDestroy(fccharset);
|
|
}
|
|
|
|
XftDrawStringUtf8(xw.draw, fg, frc[i].font,
|
|
xp, winy + frc[i].font->ascent,
|
|
(FcChar8 *)u8c, u8cblen);
|
|
|
|
xp += xw.cw * wcwidth(unicodep);
|
|
}
|
|
|
|
/*
|
|
* This is how the loop above actually should be. Why does the
|
|
* application have to care about font details?
|
|
*
|
|
* I have to repeat: Xft and Fontconfig are design failures.
|
|
*/
|
|
/*
|
|
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);
|
|
}
|
|
|
|
if(base.mode & ATTR_STRUCK) {
|
|
XftDrawRect(xw.draw, fg, winx, winy + 2 * font->ascent / 3,
|
|
width, 1);
|
|
}
|
|
|
|
/* Reset clip to none. */
|
|
XftDrawSetClip(xw.draw, 0);
|
|
}
|
|
|
|
void
|
|
xdrawcursor(void) {
|
|
static int oldx = 0, oldy = 0;
|
|
int sl, width, curx;
|
|
Glyph g = {{' '}, ATTR_NULL, defaultbg, defaultcs};
|
|
|
|
LIMIT(oldx, 0, term.col-1);
|
|
LIMIT(oldy, 0, term.row-1);
|
|
|
|
curx = term.c.x;
|
|
|
|
/* adjust position if in dummy */
|
|
if(term.line[oldy][oldx].mode & ATTR_WDUMMY)
|
|
oldx--;
|
|
if(term.line[term.c.y][curx].mode & ATTR_WDUMMY)
|
|
curx--;
|
|
|
|
memcpy(g.c, term.line[term.c.y][term.c.x].c, UTF_SIZ);
|
|
|
|
/* remove the old cursor */
|
|
sl = utf8len(term.line[oldy][oldx].c);
|
|
width = (term.line[oldy][oldx].mode & ATTR_WIDE)? 2 : 1;
|
|
xdraws(term.line[oldy][oldx].c, term.line[oldy][oldx], oldx,
|
|
oldy, width, sl);
|
|
|
|
if(IS_SET(MODE_HIDE))
|
|
return;
|
|
|
|
/* draw the new one */
|
|
if(xw.state & WIN_FOCUSED) {
|
|
if(IS_SET(MODE_REVERSE)) {
|
|
g.mode |= ATTR_REVERSE;
|
|
g.fg = defaultcs;
|
|
g.bg = defaultfg;
|
|
}
|
|
|
|
sl = utf8len(g.c);
|
|
width = (term.line[term.c.y][curx].mode & ATTR_WIDE)\
|
|
? 2 : 1;
|
|
xdraws(g.c, g, term.c.x, term.c.y, width, sl);
|
|
} else {
|
|
XftDrawRect(xw.draw, &dc.col[defaultcs],
|
|
borderpx + curx * xw.cw,
|
|
borderpx + term.c.y * xw.ch,
|
|
xw.cw - 1, 1);
|
|
XftDrawRect(xw.draw, &dc.col[defaultcs],
|
|
borderpx + curx * xw.cw,
|
|
borderpx + term.c.y * xw.ch,
|
|
1, xw.ch - 1);
|
|
XftDrawRect(xw.draw, &dc.col[defaultcs],
|
|
borderpx + (curx + 1) * xw.cw - 1,
|
|
borderpx + term.c.y * xw.ch,
|
|
1, xw.ch - 1);
|
|
XftDrawRect(xw.draw, &dc.col[defaultcs],
|
|
borderpx + curx * xw.cw,
|
|
borderpx + (term.c.y + 1) * xw.ch - 1,
|
|
xw.cw, 1);
|
|
}
|
|
oldx = curx, oldy = term.c.y;
|
|
}
|
|
|
|
|
|
void
|
|
xsettitle(char *p) {
|
|
XTextProperty prop;
|
|
|
|
Xutf8TextListToTextProperty(xw.dpy, &p, 1, XUTF8StringStyle,
|
|
&prop);
|
|
XSetWMName(xw.dpy, xw.win, &prop);
|
|
XSetTextProperty(xw.dpy, xw.win, &prop, xw.netwmname);
|
|
XFree(prop.value);
|
|
}
|
|
|
|
void
|
|
xresettitle(void) {
|
|
xsettitle(opt_title ? opt_title : "st");
|
|
}
|
|
|
|
void
|
|
redraw(int timeout) {
|
|
struct timespec tv = {0, timeout * 1000};
|
|
|
|
tfulldirt();
|
|
draw();
|
|
|
|
if(timeout > 0) {
|
|
nanosleep(&tv, NULL);
|
|
XSync(xw.dpy, False); /* necessary for a good tput flash */
|
|
}
|
|
}
|
|
|
|
void
|
|
draw(void) {
|
|
drawregion(0, 0, term.col, term.row);
|
|
XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, 0, 0, xw.w,
|
|
xw.h, 0, 0);
|
|
XSetForeground(xw.dpy, dc.gc,
|
|
dc.col[IS_SET(MODE_REVERSE)?
|
|
defaultfg : defaultbg].pixel);
|
|
}
|
|
|
|
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.ob.x != -1 && sel.alt == IS_SET(MODE_ALTSCREEN);
|
|
long unicodep;
|
|
|
|
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(new.mode == ATTR_WDUMMY)
|
|
continue;
|
|
if(ena_sel && selected(x, y))
|
|
new.mode ^= ATTR_REVERSE;
|
|
if(ib > 0 && (ATTRCMP(base, new)
|
|
|| ib >= DRAW_BUF_SIZ-UTF_SIZ)) {
|
|
xdraws(buf, base, ox, y, ic, ib);
|
|
ic = ib = 0;
|
|
}
|
|
if(ib == 0) {
|
|
ox = x;
|
|
base = new;
|
|
}
|
|
|
|
sl = utf8decode(new.c, &unicodep, UTF_SIZ);
|
|
memcpy(buf+ib, new.c, sl);
|
|
ib += sl;
|
|
ic += (new.mode & ATTR_WIDE)? 2 : 1;
|
|
}
|
|
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;
|
|
}
|
|
redraw(0);
|
|
}
|
|
|
|
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
|
|
xsetpointermotion(int set) {
|
|
MODBIT(xw.attrs.event_mask, set, PointerMotionMask);
|
|
XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask, &xw.attrs);
|
|
}
|
|
|
|
void
|
|
xseturgency(int add) {
|
|
XWMHints *h = XGetWMHints(xw.dpy, xw.win);
|
|
|
|
MODBIT(h->flags, add, XUrgencyHint);
|
|
XSetWMHints(xw.dpy, xw.win, h);
|
|
XFree(h);
|
|
}
|
|
|
|
void
|
|
focus(XEvent *ev) {
|
|
XFocusChangeEvent *e = &ev->xfocus;
|
|
|
|
if(e->mode == NotifyGrab)
|
|
return;
|
|
|
|
if(ev->type == FocusIn) {
|
|
XSetICFocus(xw.xic);
|
|
xw.state |= WIN_FOCUSED;
|
|
xseturgency(0);
|
|
if(IS_SET(MODE_FOCUS))
|
|
ttywrite("\033[I", 3);
|
|
} else {
|
|
XUnsetICFocus(xw.xic);
|
|
xw.state &= ~WIN_FOCUSED;
|
|
if(IS_SET(MODE_FOCUS))
|
|
ttywrite("\033[O", 3);
|
|
}
|
|
}
|
|
|
|
static inline bool
|
|
match(uint mask, uint state) {
|
|
return mask == XK_ANY_MOD || mask == (state & ~ignoremod);
|
|
}
|
|
|
|
void
|
|
numlock(const Arg *dummy) {
|
|
term.numlock ^= 1;
|
|
}
|
|
|
|
char*
|
|
kmap(KeySym k, uint state) {
|
|
Key *kp;
|
|
int i;
|
|
|
|
/* Check for mapped keys out of X11 function keys. */
|
|
for(i = 0; i < LEN(mappedkeys); i++) {
|
|
if(mappedkeys[i] == k)
|
|
break;
|
|
}
|
|
if(i == LEN(mappedkeys)) {
|
|
if((k & 0xFFFF) < 0xFD00)
|
|
return NULL;
|
|
}
|
|
|
|
for(kp = key; kp < key + LEN(key); kp++) {
|
|
if(kp->k != k)
|
|
continue;
|
|
|
|
if(!match(kp->mask, state))
|
|
continue;
|
|
|
|
if(IS_SET(MODE_APPKEYPAD) ? kp->appkey < 0 : kp->appkey > 0)
|
|
continue;
|
|
if(term.numlock && kp->appkey == 2)
|
|
continue;
|
|
|
|
if(IS_SET(MODE_APPCURSOR) ? kp->appcursor < 0 : kp->appcursor > 0)
|
|
continue;
|
|
|
|
if(IS_SET(MODE_CRLF) ? kp->crlf < 0 : kp->crlf > 0)
|
|
continue;
|
|
|
|
return kp->s;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
void
|
|
kpress(XEvent *ev) {
|
|
XKeyEvent *e = &ev->xkey;
|
|
KeySym ksym;
|
|
char buf[32], *customkey;
|
|
int len;
|
|
long c;
|
|
Status status;
|
|
Shortcut *bp;
|
|
|
|
if(IS_SET(MODE_KBDLOCK))
|
|
return;
|
|
|
|
len = XmbLookupString(xw.xic, e, buf, sizeof buf, &ksym, &status);
|
|
/* 1. shortcuts */
|
|
for(bp = shortcuts; bp < shortcuts + LEN(shortcuts); bp++) {
|
|
if(ksym == bp->keysym && match(bp->mod, e->state)) {
|
|
bp->func(&(bp->arg));
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* 2. custom keys from config.h */
|
|
if((customkey = kmap(ksym, e->state))) {
|
|
ttysend(customkey, strlen(customkey));
|
|
return;
|
|
}
|
|
|
|
/* 3. composed string from input method */
|
|
if(len == 0)
|
|
return;
|
|
if(len == 1 && e->state & Mod1Mask) {
|
|
if(IS_SET(MODE_8BIT)) {
|
|
if(*buf < 0177) {
|
|
c = *buf | 0x80;
|
|
len = utf8encode(c, buf, UTF_SIZ);
|
|
}
|
|
} else {
|
|
buf[1] = buf[0];
|
|
buf[0] = '\033';
|
|
len = 2;
|
|
}
|
|
}
|
|
ttysend(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;
|
|
int w = xw.w, h = xw.h;
|
|
fd_set rfd;
|
|
int xfd = XConnectionNumber(xw.dpy), xev, blinkset = 0, dodraw = 0;
|
|
struct timespec drawtimeout, *tv = NULL, now, last, lastblink;
|
|
long deltatime;
|
|
|
|
/* Waiting for window mapping */
|
|
while(1) {
|
|
XNextEvent(xw.dpy, &ev);
|
|
if(XFilterEvent(&ev, None))
|
|
continue;
|
|
if(ev.type == ConfigureNotify) {
|
|
w = ev.xconfigure.width;
|
|
h = ev.xconfigure.height;
|
|
} else if(ev.type == MapNotify) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
ttynew();
|
|
cresize(w, h);
|
|
|
|
clock_gettime(CLOCK_MONOTONIC, &last);
|
|
lastblink = last;
|
|
|
|
for(xev = actionfps;;) {
|
|
FD_ZERO(&rfd);
|
|
FD_SET(cmdfd, &rfd);
|
|
FD_SET(xfd, &rfd);
|
|
|
|
if(pselect(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, tv, NULL) < 0) {
|
|
if(errno == EINTR)
|
|
continue;
|
|
die("select failed: %s\n", strerror(errno));
|
|
}
|
|
if(FD_ISSET(cmdfd, &rfd)) {
|
|
ttyread();
|
|
if(blinktimeout) {
|
|
blinkset = tattrset(ATTR_BLINK);
|
|
if(!blinkset)
|
|
MODBIT(term.mode, 0, MODE_BLINK);
|
|
}
|
|
}
|
|
|
|
if(FD_ISSET(xfd, &rfd))
|
|
xev = actionfps;
|
|
|
|
clock_gettime(CLOCK_MONOTONIC, &now);
|
|
drawtimeout.tv_sec = 0;
|
|
drawtimeout.tv_nsec = (1000/xfps) * 1E6;
|
|
tv = &drawtimeout;
|
|
|
|
dodraw = 0;
|
|
if(blinktimeout && TIMEDIFF(now, lastblink) > blinktimeout) {
|
|
tsetdirtattr(ATTR_BLINK);
|
|
term.mode ^= MODE_BLINK;
|
|
lastblink = now;
|
|
dodraw = 1;
|
|
}
|
|
deltatime = TIMEDIFF(now, last);
|
|
if(deltatime > (xev? (1000/xfps) : (1000/actionfps))
|
|
|| deltatime < 0) {
|
|
dodraw = 1;
|
|
last = now;
|
|
}
|
|
|
|
if(dodraw) {
|
|
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);
|
|
|
|
if(xev && !FD_ISSET(xfd, &rfd))
|
|
xev--;
|
|
if(!FD_ISSET(cmdfd, &rfd) && !FD_ISSET(xfd, &rfd)) {
|
|
if(blinkset) {
|
|
if(TIMEDIFF(now, lastblink) \
|
|
> blinktimeout) {
|
|
drawtimeout.tv_nsec = 1000;
|
|
} else {
|
|
drawtimeout.tv_nsec = (1E6 * \
|
|
(blinktimeout - \
|
|
TIMEDIFF(now,
|
|
lastblink)));
|
|
}
|
|
drawtimeout.tv_sec = \
|
|
drawtimeout.tv_nsec / 1E9;
|
|
drawtimeout.tv_nsec %= (long)1E9;
|
|
} else {
|
|
tv = NULL;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
usage(void) {
|
|
die("%s " VERSION " (c) 2010-2015 st engineers\n" \
|
|
"usage: st [-a] [-v] [-c class] [-f font] [-g geometry] [-o file]\n"
|
|
" [-i] [-t title] [-w windowid] [-e command ...]\n", argv0);
|
|
}
|
|
|
|
int
|
|
main(int argc, char *argv[]) {
|
|
char *titles;
|
|
uint cols = 80, rows = 24;
|
|
|
|
xw.l = xw.t = 0;
|
|
xw.isfixed = False;
|
|
|
|
ARGBEGIN {
|
|
case 'a':
|
|
allowaltscreen = false;
|
|
break;
|
|
case 'c':
|
|
opt_class = EARGF(usage());
|
|
break;
|
|
case 'e':
|
|
/* eat all remaining arguments */
|
|
if(argc > 1) {
|
|
opt_cmd = &argv[1];
|
|
if(argv[1] != NULL && opt_title == NULL) {
|
|
titles = xstrdup(argv[1]);
|
|
opt_title = basename(titles);
|
|
}
|
|
}
|
|
goto run;
|
|
case 'f':
|
|
opt_font = EARGF(usage());
|
|
break;
|
|
case 'g':
|
|
xw.gm = XParseGeometry(EARGF(usage()),
|
|
&xw.l, &xw.t, &cols, &rows);
|
|
break;
|
|
case 'i':
|
|
xw.isfixed = True;
|
|
break;
|
|
case 'o':
|
|
opt_io = EARGF(usage());
|
|
break;
|
|
case 't':
|
|
opt_title = EARGF(usage());
|
|
break;
|
|
case 'w':
|
|
opt_embed = EARGF(usage());
|
|
break;
|
|
case 'v':
|
|
default:
|
|
usage();
|
|
} ARGEND;
|
|
|
|
run:
|
|
setlocale(LC_CTYPE, "");
|
|
XSetLocaleModifiers("");
|
|
tnew(cols? cols : 1, rows? rows : 1);
|
|
xinit();
|
|
selinit();
|
|
run();
|
|
|
|
return 0;
|
|
}
|
|
|