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ac8f05c45a
Add the documentation from the vt100 manual programmer: Control Octal Action Taken Character Code ------------------------------------------- NUL 000 Ignored on input (not stored in input buffer; see full duplex protocol). ENQ 005 Transmit answerback message. BEL 007 Sound bell tone from keyboard. BS 010 Move the cursor to the left one character position, unless it is at the left margin, in which case no action occurs. HT 011 Move the cursor to the next tab stop, or to the right margin if no further tab stops are present on the line. LF 012 This code causes a line feed or a new line operation. (See new line mode). VT 013 Interpreted as LF. FF 014 Interpreted as LF. CR 015 Move cursor to the left margin on the current line. SO 016 Invoke G1 character set, as designated by SCS control sequence. SI 017 Select G0 character set, as selected by ESC ( sequence. XON 021 Causes terminal to resume transmission. XOFF 023 Causes terminal to stop transmitted all codes except XOFF and XON. CAN 030 If sent during a control sequence, the sequence is immediately terminated and not executed. It also causes the error character to be displayed. SUB 032 Interpreted as CAN. ESC 033 Invokes a control sequence. DEL 177 Ignored on input (not stored in input buffer). -------------------------------------------- --- st.c | 28 +++++++++++++++++++--------- 1 file changed, 19 insertions(+), 9 deletions(-)
2737 lines
59 KiB
C
2737 lines
59 KiB
C
/* See LICENSE for licence details. */
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#define _XOPEN_SOURCE 600
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#include <ctype.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <limits.h>
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#include <locale.h>
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#include <stdarg.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <signal.h>
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#include <sys/ioctl.h>
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#include <sys/select.h>
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#include <sys/stat.h>
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#include <sys/time.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <time.h>
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#include <unistd.h>
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#include <X11/Xatom.h>
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#include <X11/cursorfont.h>
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#include <X11/keysym.h>
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#include <X11/extensions/Xdbe.h>
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#include <X11/Xft/Xft.h>
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#include <fontconfig/fontconfig.h>
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#define Glyph Glyph_
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#define Font Font_
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#if defined(__linux)
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#include <pty.h>
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#elif defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__)
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#include <util.h>
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#elif defined(__FreeBSD__) || defined(__DragonFly__)
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#include <libutil.h>
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#endif
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#define USAGE \
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"st " VERSION " (c) 2010-2012 st engineers\n" \
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"usage: st [-v] [-c class] [-f font] [-g geometry] [-o file]" \
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" [-t title] [-w windowid] [-e command ...]\n"
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/* XEMBED messages */
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#define XEMBED_FOCUS_IN 4
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#define XEMBED_FOCUS_OUT 5
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/* Arbitrary sizes */
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#define ESC_BUF_SIZ 256
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#define ESC_ARG_SIZ 16
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#define STR_BUF_SIZ 256
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#define STR_ARG_SIZ 16
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#define DRAW_BUF_SIZ 20*1024
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#define UTF_SIZ 4
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#define XK_NO_MOD UINT_MAX
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#define XK_ANY_MOD 0
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#define REDRAW_TIMEOUT (80*1000) /* 80 ms */
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#define SERRNO strerror(errno)
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#define MIN(a, b) ((a) < (b) ? (a) : (b))
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#define MAX(a, b) ((a) < (b) ? (b) : (a))
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#define LEN(a) (sizeof(a) / sizeof(a[0]))
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#define DEFAULT(a, b) (a) = (a) ? (a) : (b)
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#define BETWEEN(x, a, b) ((a) <= (x) && (x) <= (b))
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#define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x)
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#define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || (a).bg != (b).bg)
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#define IS_SET(flag) (term.mode & (flag))
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#define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + (t1.tv_usec-t2.tv_usec)/1000)
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#define X2COL(x) (((x) - BORDER)/xw.cw)
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#define Y2ROW(y) (((y) - BORDER)/xw.ch)
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enum glyph_attribute {
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ATTR_NULL = 0,
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ATTR_REVERSE = 1,
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ATTR_UNDERLINE = 2,
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ATTR_BOLD = 4,
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ATTR_GFX = 8,
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ATTR_ITALIC = 16,
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ATTR_BLINK = 32,
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};
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enum cursor_movement {
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CURSOR_UP,
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CURSOR_DOWN,
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CURSOR_LEFT,
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CURSOR_RIGHT,
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CURSOR_SAVE,
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CURSOR_LOAD
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};
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enum cursor_state {
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CURSOR_DEFAULT = 0,
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CURSOR_HIDE = 1,
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CURSOR_WRAPNEXT = 2
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};
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enum glyph_state {
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GLYPH_SET = 1,
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GLYPH_DIRTY = 2
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};
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enum term_mode {
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MODE_WRAP = 1,
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MODE_INSERT = 2,
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MODE_APPKEYPAD = 4,
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MODE_ALTSCREEN = 8,
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MODE_CRLF = 16,
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MODE_MOUSEBTN = 32,
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MODE_MOUSEMOTION = 64,
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MODE_MOUSE = 32|64,
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MODE_REVERSE = 128,
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MODE_KBDLOCK = 256
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};
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enum escape_state {
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ESC_START = 1,
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ESC_CSI = 2,
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ESC_STR = 4, /* DSC, OSC, PM, APC */
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ESC_ALTCHARSET = 8,
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ESC_STR_END = 16, /* a final string was encountered */
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};
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enum window_state {
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WIN_VISIBLE = 1,
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WIN_REDRAW = 2,
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WIN_FOCUSED = 4
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};
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/* bit macro */
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#undef B0
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enum { B0=1, B1=2, B2=4, B3=8, B4=16, B5=32, B6=64, B7=128 };
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typedef unsigned char uchar;
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typedef unsigned int uint;
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typedef unsigned long ulong;
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typedef unsigned short ushort;
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typedef struct {
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char c[UTF_SIZ]; /* character code */
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uchar mode; /* attribute flags */
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ushort fg; /* foreground */
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ushort bg; /* background */
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uchar state; /* state flags */
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} Glyph;
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typedef Glyph* Line;
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typedef struct {
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Glyph attr; /* current char attributes */
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int x;
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int y;
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char state;
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} TCursor;
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/* CSI Escape sequence structs */
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/* ESC '[' [[ [<priv>] <arg> [;]] <mode>] */
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typedef struct {
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char buf[ESC_BUF_SIZ]; /* raw string */
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int len; /* raw string length */
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char priv;
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int arg[ESC_ARG_SIZ];
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int narg; /* nb of args */
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char mode;
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} CSIEscape;
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/* STR Escape sequence structs */
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/* ESC type [[ [<priv>] <arg> [;]] <mode>] ESC '\' */
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typedef struct {
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char type; /* ESC type ... */
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char buf[STR_BUF_SIZ]; /* raw string */
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int len; /* raw string length */
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char *args[STR_ARG_SIZ];
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int narg; /* nb of args */
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} STREscape;
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/* Internal representation of the screen */
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typedef struct {
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int row; /* nb row */
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int col; /* nb col */
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Line *line; /* screen */
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Line *alt; /* alternate screen */
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bool *dirty; /* dirtyness of lines */
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TCursor c; /* cursor */
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int top; /* top scroll limit */
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int bot; /* bottom scroll limit */
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int mode; /* terminal mode flags */
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int esc; /* escape state flags */
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bool *tabs;
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} Term;
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/* Purely graphic info */
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typedef struct {
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Display* dpy;
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Colormap cmap;
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Window win;
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XdbeBackBuffer buf;
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Atom xembed, wmdeletewin;
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XIM xim;
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XIC xic;
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XftDraw *xft_draw;
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Visual *vis;
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int scr;
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bool isfixed; /* is fixed geometry? */
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int fx, fy, fw, fh; /* fixed geometry */
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int tw, th; /* tty width and height */
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int w; /* window width */
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int h; /* window height */
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int ch; /* char height */
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int cw; /* char width */
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char state; /* focus, redraw, visible */
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} XWindow;
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typedef struct {
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KeySym k;
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uint mask;
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char s[ESC_BUF_SIZ];
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} Key;
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/* TODO: use better name for vars... */
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typedef struct {
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int mode;
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int bx, by;
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int ex, ey;
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struct {
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int x, y;
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} b, e;
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char *clip;
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Atom xtarget;
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bool alt;
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struct timeval tclick1;
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struct timeval tclick2;
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} Selection;
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#include "config.h"
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/* Font structure */
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typedef struct {
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int 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 *xft_set;
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} Font;
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/* Drawing Context */
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typedef struct {
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XftColor xft_col[LEN(colorname) < 256 ? 256 : LEN(colorname)];
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GC gc;
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Font font, bfont, ifont, ibfont;
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} DC;
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static void die(const char *, ...);
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static void draw(void);
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static void redraw(void);
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static void drawregion(int, int, int, int);
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static void execsh(void);
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static void sigchld(int);
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static void run(void);
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static void csidump(void);
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static void csihandle(void);
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static void csiparse(void);
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static void csireset(void);
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static void strdump(void);
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static void strhandle(void);
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static void strparse(void);
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static void strreset(void);
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static void tclearregion(int, int, int, int);
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static void tcursor(int);
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static void tdeletechar(int);
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static void tdeleteline(int);
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static void tinsertblank(int);
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static void tinsertblankline(int);
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static void tmoveto(int, int);
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static void tnew(int, int);
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static void tnewline(int);
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static void tputtab(bool);
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static void tputc(char *, int);
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static void treset(void);
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static int tresize(int, int);
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static void tscrollup(int, int);
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static void tscrolldown(int, int);
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static void tsetattr(int*, int);
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static void tsetchar(char*);
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static void tsetscroll(int, int);
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static void tswapscreen(void);
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static void tsetdirt(int, int);
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static void tsetmode(bool, bool, int *, int);
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static void tfulldirt(void);
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static void ttynew(void);
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static void ttyread(void);
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static void ttyresize(void);
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static void ttywrite(const char *, size_t);
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static void xdraws(char *, Glyph, int, int, int, int);
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static void xhints(void);
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static void xclear(int, int, int, int);
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static void xdrawcursor(void);
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static void xinit(void);
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static void xloadcols(void);
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static void xresettitle(void);
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static void xseturgency(int);
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static void xsetsel(char*);
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static void xtermclear(int, int, int, int);
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static void xresize(int, int);
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static void expose(XEvent *);
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static void visibility(XEvent *);
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static void unmap(XEvent *);
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static char *kmap(KeySym, uint);
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static void kpress(XEvent *);
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static void cmessage(XEvent *);
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static void resize(XEvent *);
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static void focus(XEvent *);
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static void brelease(XEvent *);
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static void bpress(XEvent *);
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static void bmotion(XEvent *);
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static void selnotify(XEvent *);
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static void selclear(XEvent *);
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static void selrequest(XEvent *);
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static void selinit(void);
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static inline bool selected(int, int);
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static void selcopy(void);
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static void selpaste(void);
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static void selscroll(int, int);
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static int utf8decode(char *, long *);
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static int utf8encode(long *, char *);
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static int utf8size(char *);
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static int isfullutf8(char *, int);
|
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|
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static void *xmalloc(size_t);
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static void *xrealloc(void *, size_t);
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static void *xcalloc(size_t nmemb, size_t size);
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static char *smstrcat(char *, ...);
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|
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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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|
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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;
|
||
static CSIEscape csiescseq;
|
||
static STREscape strescseq;
|
||
static int cmdfd;
|
||
static pid_t pid;
|
||
static Selection sel;
|
||
static int iofd = -1;
|
||
static char **opt_cmd = NULL;
|
||
static char *opt_io = NULL;
|
||
static char *opt_title = NULL;
|
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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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void *
|
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xmalloc(size_t len) {
|
||
void *p = malloc(len);
|
||
|
||
if(!p)
|
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die("Out of memory\n");
|
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|
||
return p;
|
||
}
|
||
|
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void *
|
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xrealloc(void *p, size_t len) {
|
||
if((p = realloc(p, len)) == NULL)
|
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die("Out of memory\n");
|
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|
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return p;
|
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}
|
||
|
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void *
|
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xcalloc(size_t nmemb, size_t size) {
|
||
void *p = calloc(nmemb, size);
|
||
|
||
if(!p)
|
||
die("Out of memory\n");
|
||
|
||
return p;
|
||
}
|
||
|
||
char *
|
||
smstrcat(char *src, ...)
|
||
{
|
||
va_list fmtargs;
|
||
char *ret, *p, *v;
|
||
int len, slen, flen;
|
||
|
||
len = slen = strlen(src);
|
||
|
||
va_start(fmtargs, src);
|
||
for(;;) {
|
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v = va_arg(fmtargs, char *);
|
||
if(v == NULL)
|
||
break;
|
||
len += strlen(v);
|
||
}
|
||
va_end(fmtargs);
|
||
|
||
p = ret = xmalloc(len+1);
|
||
memmove(p, src, slen);
|
||
p += slen;
|
||
|
||
va_start(fmtargs, src);
|
||
for(;;) {
|
||
v = va_arg(fmtargs, char *);
|
||
if(v == NULL)
|
||
break;
|
||
flen = strlen(v);
|
||
memmove(p, v, flen);
|
||
p += flen;
|
||
}
|
||
va_end(fmtargs);
|
||
|
||
ret[len] = '\0';
|
||
|
||
return ret;
|
||
}
|
||
|
||
int
|
||
utf8decode(char *s, long *u) {
|
||
uchar c;
|
||
int i, n, rtn;
|
||
|
||
rtn = 1;
|
||
c = *s;
|
||
if(~c & B7) { /* 0xxxxxxx */
|
||
*u = c;
|
||
return rtn;
|
||
} else if((c & (B7|B6|B5)) == (B7|B6)) { /* 110xxxxx */
|
||
*u = c&(B4|B3|B2|B1|B0);
|
||
n = 1;
|
||
} else if((c & (B7|B6|B5|B4)) == (B7|B6|B5)) { /* 1110xxxx */
|
||
*u = c&(B3|B2|B1|B0);
|
||
n = 2;
|
||
} else if((c & (B7|B6|B5|B4|B3)) == (B7|B6|B5|B4)) { /* 11110xxx */
|
||
*u = c & (B2|B1|B0);
|
||
n = 3;
|
||
} else {
|
||
goto invalid;
|
||
}
|
||
|
||
for(i = n, ++s; i > 0; --i, ++rtn, ++s) {
|
||
c = *s;
|
||
if((c & (B7|B6)) != B7) /* 10xxxxxx */
|
||
goto invalid;
|
||
*u <<= 6;
|
||
*u |= c & (B5|B4|B3|B2|B1|B0);
|
||
}
|
||
|
||
if((n == 1 && *u < 0x80) ||
|
||
(n == 2 && *u < 0x800) ||
|
||
(n == 3 && *u < 0x10000) ||
|
||
(*u >= 0xD800 && *u <= 0xDFFF)) {
|
||
goto invalid;
|
||
}
|
||
|
||
return rtn;
|
||
invalid:
|
||
*u = 0xFFFD;
|
||
|
||
return rtn;
|
||
}
|
||
|
||
int
|
||
utf8encode(long *u, char *s) {
|
||
uchar *sp;
|
||
ulong uc;
|
||
int i, n;
|
||
|
||
sp = (uchar *)s;
|
||
uc = *u;
|
||
if(uc < 0x80) {
|
||
*sp = uc; /* 0xxxxxxx */
|
||
return 1;
|
||
} else if(*u < 0x800) {
|
||
*sp = (uc >> 6) | (B7|B6); /* 110xxxxx */
|
||
n = 1;
|
||
} else if(uc < 0x10000) {
|
||
*sp = (uc >> 12) | (B7|B6|B5); /* 1110xxxx */
|
||
n = 2;
|
||
} else if(uc <= 0x10FFFF) {
|
||
*sp = (uc >> 18) | (B7|B6|B5|B4); /* 11110xxx */
|
||
n = 3;
|
||
} else {
|
||
goto invalid;
|
||
}
|
||
|
||
for(i=n,++sp; i>0; --i,++sp)
|
||
*sp = ((uc >> 6*(i-1)) & (B5|B4|B3|B2|B1|B0)) | B7; /* 10xxxxxx */
|
||
|
||
return n+1;
|
||
invalid:
|
||
/* U+FFFD */
|
||
*s++ = '\xEF';
|
||
*s++ = '\xBF';
|
||
*s = '\xBD';
|
||
|
||
return 3;
|
||
}
|
||
|
||
/* use this if your buffer is less than UTF_SIZ, it returns 1 if you can decode
|
||
UTF-8 otherwise return 0 */
|
||
int
|
||
isfullutf8(char *s, int b) {
|
||
uchar *c1, *c2, *c3;
|
||
|
||
c1 = (uchar *)s;
|
||
c2 = (uchar *)++s;
|
||
c3 = (uchar *)++s;
|
||
if(b < 1) {
|
||
return 0;
|
||
} else if((*c1&(B7|B6|B5)) == (B7|B6) && b == 1) {
|
||
return 0;
|
||
} else if((*c1&(B7|B6|B5|B4)) == (B7|B6|B5) &&
|
||
((b == 1) ||
|
||
((b == 2) && (*c2&(B7|B6)) == B7))) {
|
||
return 0;
|
||
} else if((*c1&(B7|B6|B5|B4|B3)) == (B7|B6|B5|B4) &&
|
||
((b == 1) ||
|
||
((b == 2) && (*c2&(B7|B6)) == B7) ||
|
||
((b == 3) && (*c2&(B7|B6)) == B7 && (*c3&(B7|B6)) == B7))) {
|
||
return 0;
|
||
} else {
|
||
return 1;
|
||
}
|
||
}
|
||
|
||
int
|
||
utf8size(char *s) {
|
||
uchar c = *s;
|
||
|
||
if(~c&B7) {
|
||
return 1;
|
||
} else if((c&(B7|B6|B5)) == (B7|B6)) {
|
||
return 2;
|
||
} else if((c&(B7|B6|B5|B4)) == (B7|B6|B5)) {
|
||
return 3;
|
||
} else {
|
||
return 4;
|
||
}
|
||
}
|
||
|
||
void
|
||
selinit(void) {
|
||
memset(&sel.tclick1, 0, sizeof(sel.tclick1));
|
||
memset(&sel.tclick2, 0, sizeof(sel.tclick2));
|
||
sel.mode = 0;
|
||
sel.bx = -1;
|
||
sel.clip = NULL;
|
||
sel.xtarget = XInternAtom(xw.dpy, "UTF8_STRING", 0);
|
||
if(sel.xtarget == None)
|
||
sel.xtarget = XA_STRING;
|
||
}
|
||
|
||
static inline bool
|
||
selected(int x, int y) {
|
||
int bx, ex;
|
||
|
||
if(sel.ey == y && sel.by == y) {
|
||
bx = MIN(sel.bx, sel.ex);
|
||
ex = MAX(sel.bx, sel.ex);
|
||
return BETWEEN(x, bx, ex);
|
||
}
|
||
|
||
return ((sel.b.y < y && y < sel.e.y)
|
||
|| (y == sel.e.y && x <= sel.e.x))
|
||
|| (y == sel.b.y && x >= sel.b.x
|
||
&& (x <= sel.e.x || sel.b.y != sel.e.y));
|
||
}
|
||
|
||
void
|
||
getbuttoninfo(XEvent *e, int *b, int *x, int *y) {
|
||
if(b)
|
||
*b = e->xbutton.button;
|
||
|
||
*x = X2COL(e->xbutton.x);
|
||
*y = Y2ROW(e->xbutton.y);
|
||
sel.b.x = sel.by < sel.ey ? sel.bx : sel.ex;
|
||
sel.b.y = MIN(sel.by, sel.ey);
|
||
sel.e.x = sel.by < sel.ey ? sel.ex : sel.bx;
|
||
sel.e.y = MAX(sel.by, sel.ey);
|
||
}
|
||
|
||
void
|
||
mousereport(XEvent *e) {
|
||
int x = X2COL(e->xbutton.x);
|
||
int y = Y2ROW(e->xbutton.y);
|
||
int button = e->xbutton.button;
|
||
int state = e->xbutton.state;
|
||
char buf[] = { '\033', '[', 'M', 0, 32+x+1, 32+y+1 };
|
||
static int ob, ox, oy;
|
||
|
||
/* from urxvt */
|
||
if(e->xbutton.type == MotionNotify) {
|
||
if(!IS_SET(MODE_MOUSEMOTION) || (x == ox && y == oy))
|
||
return;
|
||
button = ob + 32;
|
||
ox = x, oy = y;
|
||
} else if(e->xbutton.type == ButtonRelease || button == AnyButton) {
|
||
button = 3;
|
||
} else {
|
||
button -= Button1;
|
||
if(button >= 3)
|
||
button += 64 - 3;
|
||
if(e->xbutton.type == ButtonPress) {
|
||
ob = button;
|
||
ox = x, oy = y;
|
||
}
|
||
}
|
||
|
||
buf[3] = 32 + button + (state & ShiftMask ? 4 : 0)
|
||
+ (state & Mod4Mask ? 8 : 0)
|
||
+ (state & ControlMask ? 16 : 0);
|
||
|
||
ttywrite(buf, sizeof(buf));
|
||
}
|
||
|
||
void
|
||
bpress(XEvent *e) {
|
||
if(IS_SET(MODE_MOUSE)) {
|
||
mousereport(e);
|
||
} else if(e->xbutton.button == Button1) {
|
||
if(sel.bx != -1) {
|
||
sel.bx = -1;
|
||
tsetdirt(sel.b.y, sel.e.y);
|
||
draw();
|
||
}
|
||
sel.mode = 1;
|
||
sel.ex = sel.bx = X2COL(e->xbutton.x);
|
||
sel.ey = sel.by = Y2ROW(e->xbutton.y);
|
||
}
|
||
}
|
||
|
||
void
|
||
selcopy(void) {
|
||
char *str, *ptr, *p;
|
||
int x, y, bufsize, is_selected = 0, size;
|
||
Glyph *gp;
|
||
|
||
if(sel.bx == -1) {
|
||
str = NULL;
|
||
} else {
|
||
bufsize = (term.col+1) * (sel.e.y-sel.b.y+1) * UTF_SIZ;
|
||
ptr = str = xmalloc(bufsize);
|
||
|
||
/* append every set & selected glyph to the selection */
|
||
for(y = 0; y < term.row; y++) {
|
||
for(x = 0; x < term.col; x++) {
|
||
gp = &term.line[y][x];
|
||
|
||
if(!(is_selected = selected(x, y)))
|
||
continue;
|
||
p = (gp->state & GLYPH_SET) ? gp->c : " ";
|
||
size = utf8size(p);
|
||
memcpy(ptr, p, size);
|
||
ptr += size;
|
||
}
|
||
/* \n at the end of every selected line except for the last one */
|
||
if(is_selected && y < sel.e.y)
|
||
*ptr++ = '\n';
|
||
}
|
||
*ptr = 0;
|
||
}
|
||
sel.alt = IS_SET(MODE_ALTSCREEN);
|
||
xsetsel(str);
|
||
}
|
||
|
||
void
|
||
selnotify(XEvent *e) {
|
||
ulong nitems, ofs, rem;
|
||
int format;
|
||
uchar *data;
|
||
Atom type;
|
||
|
||
ofs = 0;
|
||
do {
|
||
if(XGetWindowProperty(xw.dpy, xw.win, XA_PRIMARY, ofs, BUFSIZ/4,
|
||
False, AnyPropertyType, &type, &format,
|
||
&nitems, &rem, &data)) {
|
||
fprintf(stderr, "Clipboard allocation failed\n");
|
||
return;
|
||
}
|
||
ttywrite((const char *) data, nitems * format / 8);
|
||
XFree(data);
|
||
/* number of 32-bit chunks returned */
|
||
ofs += nitems * format / 32;
|
||
} while(rem > 0);
|
||
}
|
||
|
||
void
|
||
selpaste(void) {
|
||
XConvertSelection(xw.dpy, XA_PRIMARY, sel.xtarget, XA_PRIMARY,
|
||
xw.win, CurrentTime);
|
||
}
|
||
|
||
void selclear(XEvent *e) {
|
||
if(sel.bx == -1)
|
||
return;
|
||
sel.bx = -1;
|
||
tsetdirt(sel.b.y, sel.e.y);
|
||
}
|
||
|
||
void
|
||
selrequest(XEvent *e) {
|
||
XSelectionRequestEvent *xsre;
|
||
XSelectionEvent xev;
|
||
Atom xa_targets, string;
|
||
|
||
xsre = (XSelectionRequestEvent *) e;
|
||
xev.type = SelectionNotify;
|
||
xev.requestor = xsre->requestor;
|
||
xev.selection = xsre->selection;
|
||
xev.target = xsre->target;
|
||
xev.time = xsre->time;
|
||
/* reject */
|
||
xev.property = None;
|
||
|
||
xa_targets = XInternAtom(xw.dpy, "TARGETS", 0);
|
||
if(xsre->target == xa_targets) {
|
||
/* respond with the supported type */
|
||
string = sel.xtarget;
|
||
XChangeProperty(xsre->display, xsre->requestor, xsre->property,
|
||
XA_ATOM, 32, PropModeReplace,
|
||
(uchar *) &string, 1);
|
||
xev.property = xsre->property;
|
||
} else if(xsre->target == sel.xtarget && sel.clip != NULL) {
|
||
XChangeProperty(xsre->display, xsre->requestor, xsre->property,
|
||
xsre->target, 8, PropModeReplace,
|
||
(uchar *) sel.clip, strlen(sel.clip));
|
||
xev.property = xsre->property;
|
||
}
|
||
|
||
/* all done, send a notification to the listener */
|
||
if(!XSendEvent(xsre->display, xsre->requestor, True, 0, (XEvent *) &xev))
|
||
fprintf(stderr, "Error sending SelectionNotify event\n");
|
||
}
|
||
|
||
void
|
||
xsetsel(char *str) {
|
||
/* register the selection for both the clipboard and the primary */
|
||
Atom clipboard;
|
||
|
||
free(sel.clip);
|
||
sel.clip = str;
|
||
|
||
XSetSelectionOwner(xw.dpy, XA_PRIMARY, xw.win, CurrentTime);
|
||
|
||
clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
|
||
XSetSelectionOwner(xw.dpy, clipboard, xw.win, CurrentTime);
|
||
}
|
||
|
||
void
|
||
brelease(XEvent *e) {
|
||
struct timeval now;
|
||
|
||
if(IS_SET(MODE_MOUSE)) {
|
||
mousereport(e);
|
||
return;
|
||
}
|
||
|
||
if(e->xbutton.button == Button2) {
|
||
selpaste();
|
||
} else if(e->xbutton.button == Button1) {
|
||
sel.mode = 0;
|
||
getbuttoninfo(e, NULL, &sel.ex, &sel.ey);
|
||
term.dirty[sel.ey] = 1;
|
||
if(sel.bx == sel.ex && sel.by == sel.ey) {
|
||
sel.bx = -1;
|
||
gettimeofday(&now, NULL);
|
||
|
||
if(TIMEDIFF(now, sel.tclick2) <= TRIPLECLICK_TIMEOUT) {
|
||
/* triple click on the line */
|
||
sel.b.x = sel.bx = 0;
|
||
sel.e.x = sel.ex = term.col;
|
||
sel.b.y = sel.e.y = sel.ey;
|
||
selcopy();
|
||
} else if(TIMEDIFF(now, sel.tclick1) <= DOUBLECLICK_TIMEOUT) {
|
||
/* double click to select word */
|
||
sel.bx = sel.ex;
|
||
while(sel.bx > 0 && term.line[sel.ey][sel.bx-1].state & GLYPH_SET &&
|
||
term.line[sel.ey][sel.bx-1].c[0] != ' ') {
|
||
sel.bx--;
|
||
}
|
||
sel.b.x = sel.bx;
|
||
while(sel.ex < term.col-1 && term.line[sel.ey][sel.ex+1].state & GLYPH_SET &&
|
||
term.line[sel.ey][sel.ex+1].c[0] != ' ') {
|
||
sel.ex++;
|
||
}
|
||
sel.e.x = sel.ex;
|
||
sel.b.y = sel.e.y = sel.ey;
|
||
selcopy();
|
||
}
|
||
} else {
|
||
selcopy();
|
||
}
|
||
}
|
||
|
||
memcpy(&sel.tclick2, &sel.tclick1, sizeof(struct timeval));
|
||
gettimeofday(&sel.tclick1, NULL);
|
||
}
|
||
|
||
void
|
||
bmotion(XEvent *e) {
|
||
int starty, endy, oldey, oldex;
|
||
|
||
if(IS_SET(MODE_MOUSE)) {
|
||
mousereport(e);
|
||
return;
|
||
}
|
||
|
||
if(sel.mode) {
|
||
oldey = sel.ey;
|
||
oldex = sel.ex;
|
||
getbuttoninfo(e, NULL, &sel.ex, &sel.ey);
|
||
|
||
if(oldey != sel.ey || oldex != sel.ex) {
|
||
starty = MIN(oldey, sel.ey);
|
||
endy = MAX(oldey, sel.ey);
|
||
tsetdirt(starty, endy);
|
||
}
|
||
}
|
||
}
|
||
|
||
void
|
||
die(const char *errstr, ...) {
|
||
va_list ap;
|
||
|
||
va_start(ap, errstr);
|
||
vfprintf(stderr, errstr, ap);
|
||
va_end(ap);
|
||
exit(EXIT_FAILURE);
|
||
}
|
||
|
||
void
|
||
execsh(void) {
|
||
char **args;
|
||
char *envshell = getenv("SHELL");
|
||
|
||
unsetenv("COLUMNS");
|
||
unsetenv("LINES");
|
||
unsetenv("TERMCAP");
|
||
|
||
signal(SIGCHLD, SIG_DFL);
|
||
signal(SIGHUP, SIG_DFL);
|
||
signal(SIGINT, SIG_DFL);
|
||
signal(SIGQUIT, SIG_DFL);
|
||
signal(SIGTERM, SIG_DFL);
|
||
signal(SIGALRM, SIG_DFL);
|
||
|
||
DEFAULT(envshell, SHELL);
|
||
putenv("TERM="TNAME);
|
||
args = opt_cmd ? opt_cmd : (char*[]){envshell, "-i", NULL};
|
||
execvp(args[0], args);
|
||
exit(EXIT_FAILURE);
|
||
}
|
||
|
||
void
|
||
sigchld(int a) {
|
||
int stat = 0;
|
||
|
||
if(waitpid(pid, &stat, 0) < 0)
|
||
die("Waiting for pid %hd failed: %s\n", pid, SERRNO);
|
||
|
||
if(WIFEXITED(stat)) {
|
||
exit(WEXITSTATUS(stat));
|
||
} else {
|
||
exit(EXIT_FAILURE);
|
||
}
|
||
}
|
||
|
||
void
|
||
ttynew(void) {
|
||
int m, s;
|
||
struct winsize w = {term.row, term.col, 0, 0};
|
||
|
||
/* seems to work fine on linux, openbsd and freebsd */
|
||
if(openpty(&m, &s, NULL, NULL, &w) < 0)
|
||
die("openpty failed: %s\n", SERRNO);
|
||
|
||
switch(pid = fork()) {
|
||
case -1:
|
||
die("fork failed\n");
|
||
break;
|
||
case 0:
|
||
setsid(); /* create a new process group */
|
||
dup2(s, STDIN_FILENO);
|
||
dup2(s, STDOUT_FILENO);
|
||
dup2(s, STDERR_FILENO);
|
||
if(ioctl(s, TIOCSCTTY, NULL) < 0)
|
||
die("ioctl TIOCSCTTY failed: %s\n", SERRNO);
|
||
close(s);
|
||
close(m);
|
||
execsh();
|
||
break;
|
||
default:
|
||
close(s);
|
||
cmdfd = m;
|
||
signal(SIGCHLD, sigchld);
|
||
if(opt_io) {
|
||
if(!strcmp(opt_io, "-")) {
|
||
iofd = STDOUT_FILENO;
|
||
} else {
|
||
if((iofd = open(opt_io, O_WRONLY | O_CREAT, 0666)) < 0) {
|
||
fprintf(stderr, "Error opening %s:%s\n",
|
||
opt_io, strerror(errno));
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
void
|
||
dump(char c) {
|
||
static int col;
|
||
|
||
fprintf(stderr, " %02x '%c' ", c, isprint(c)?c:'.');
|
||
if(++col % 10 == 0)
|
||
fprintf(stderr, "\n");
|
||
}
|
||
|
||
void
|
||
ttyread(void) {
|
||
static char buf[BUFSIZ];
|
||
static int buflen = 0;
|
||
char *ptr;
|
||
char s[UTF_SIZ];
|
||
int charsize; /* size of utf8 char in bytes */
|
||
long utf8c;
|
||
int ret;
|
||
|
||
/* append read bytes to unprocessed bytes */
|
||
if((ret = read(cmdfd, buf+buflen, LEN(buf)-buflen)) < 0)
|
||
die("Couldn't read from shell: %s\n", SERRNO);
|
||
|
||
/* process every complete utf8 char */
|
||
buflen += ret;
|
||
ptr = buf;
|
||
while(buflen >= UTF_SIZ || isfullutf8(ptr,buflen)) {
|
||
charsize = utf8decode(ptr, &utf8c);
|
||
utf8encode(&utf8c, s);
|
||
tputc(s, charsize);
|
||
ptr += charsize;
|
||
buflen -= charsize;
|
||
}
|
||
|
||
/* keep any uncomplete utf8 char for the next call */
|
||
memmove(buf, ptr, buflen);
|
||
}
|
||
|
||
void
|
||
ttywrite(const char *s, size_t n) {
|
||
if(write(cmdfd, s, n) == -1)
|
||
die("write error on tty: %s\n", SERRNO);
|
||
}
|
||
|
||
void
|
||
ttyresize(void) {
|
||
struct winsize w;
|
||
|
||
w.ws_row = term.row;
|
||
w.ws_col = term.col;
|
||
w.ws_xpixel = xw.tw;
|
||
w.ws_ypixel = xw.th;
|
||
if(ioctl(cmdfd, TIOCSWINSZ, &w) < 0)
|
||
fprintf(stderr, "Couldn't set window size: %s\n", SERRNO);
|
||
}
|
||
|
||
void
|
||
tsetdirt(int top, int bot) {
|
||
int i;
|
||
|
||
LIMIT(top, 0, term.row-1);
|
||
LIMIT(bot, 0, term.row-1);
|
||
|
||
for(i = top; i <= bot; i++)
|
||
term.dirty[i] = 1;
|
||
}
|
||
|
||
void
|
||
tfulldirt(void) {
|
||
tsetdirt(0, term.row-1);
|
||
}
|
||
|
||
void
|
||
tcursor(int mode) {
|
||
static TCursor c;
|
||
|
||
if(mode == CURSOR_SAVE) {
|
||
c = term.c;
|
||
} else if(mode == CURSOR_LOAD) {
|
||
term.c = c;
|
||
tmoveto(c.x, c.y);
|
||
}
|
||
}
|
||
|
||
void
|
||
treset(void) {
|
||
uint i;
|
||
|
||
term.c = (TCursor){{
|
||
.mode = ATTR_NULL,
|
||
.fg = DefaultFG,
|
||
.bg = DefaultBG
|
||
}, .x = 0, .y = 0, .state = CURSOR_DEFAULT};
|
||
|
||
memset(term.tabs, 0, term.col * sizeof(*term.tabs));
|
||
for(i = TAB; i < term.col; i += TAB)
|
||
term.tabs[i] = 1;
|
||
term.top = 0;
|
||
term.bot = term.row - 1;
|
||
term.mode = MODE_WRAP;
|
||
|
||
tclearregion(0, 0, term.col-1, term.row-1);
|
||
}
|
||
|
||
void
|
||
tnew(int col, int row) {
|
||
/* set screen size */
|
||
term.row = row;
|
||
term.col = col;
|
||
term.line = xmalloc(term.row * sizeof(Line));
|
||
term.alt = xmalloc(term.row * sizeof(Line));
|
||
term.dirty = xmalloc(term.row * sizeof(*term.dirty));
|
||
term.tabs = xmalloc(term.col * sizeof(*term.tabs));
|
||
|
||
for(row = 0; row < term.row; row++) {
|
||
term.line[row] = xmalloc(term.col * sizeof(Glyph));
|
||
term.alt [row] = xmalloc(term.col * sizeof(Glyph));
|
||
term.dirty[row] = 0;
|
||
}
|
||
memset(term.tabs, 0, term.col * sizeof(*term.tabs));
|
||
/* setup screen */
|
||
treset();
|
||
}
|
||
|
||
void
|
||
tswapscreen(void) {
|
||
Line *tmp = term.line;
|
||
|
||
term.line = term.alt;
|
||
term.alt = tmp;
|
||
term.mode ^= MODE_ALTSCREEN;
|
||
tfulldirt();
|
||
}
|
||
|
||
void
|
||
tscrolldown(int orig, int n) {
|
||
int i;
|
||
Line temp;
|
||
|
||
LIMIT(n, 0, term.bot-orig+1);
|
||
|
||
tclearregion(0, term.bot-n+1, term.col-1, term.bot);
|
||
|
||
for(i = term.bot; i >= orig+n; i--) {
|
||
temp = term.line[i];
|
||
term.line[i] = term.line[i-n];
|
||
term.line[i-n] = temp;
|
||
|
||
term.dirty[i] = 1;
|
||
term.dirty[i-n] = 1;
|
||
}
|
||
|
||
selscroll(orig, n);
|
||
}
|
||
|
||
void
|
||
tscrollup(int orig, int n) {
|
||
int i;
|
||
Line temp;
|
||
LIMIT(n, 0, term.bot-orig+1);
|
||
|
||
tclearregion(0, orig, term.col-1, orig+n-1);
|
||
|
||
for(i = orig; i <= term.bot-n; i++) {
|
||
temp = term.line[i];
|
||
term.line[i] = term.line[i+n];
|
||
term.line[i+n] = temp;
|
||
|
||
term.dirty[i] = 1;
|
||
term.dirty[i+n] = 1;
|
||
}
|
||
|
||
selscroll(orig, -n);
|
||
}
|
||
|
||
void
|
||
selscroll(int orig, int n) {
|
||
if(sel.bx == -1)
|
||
return;
|
||
|
||
if(BETWEEN(sel.by, orig, term.bot) || BETWEEN(sel.ey, orig, term.bot)) {
|
||
if((sel.by += n) > term.bot || (sel.ey += n) < term.top) {
|
||
sel.bx = -1;
|
||
return;
|
||
}
|
||
if(sel.by < term.top) {
|
||
sel.by = term.top;
|
||
sel.bx = 0;
|
||
}
|
||
if(sel.ey > term.bot) {
|
||
sel.ey = term.bot;
|
||
sel.ex = term.col;
|
||
}
|
||
sel.b.y = sel.by, sel.b.x = sel.bx;
|
||
sel.e.y = sel.ey, sel.e.x = sel.ex;
|
||
}
|
||
}
|
||
|
||
void
|
||
tnewline(int first_col) {
|
||
int y = term.c.y;
|
||
|
||
if(y == term.bot) {
|
||
tscrollup(term.top, 1);
|
||
} else {
|
||
y++;
|
||
}
|
||
tmoveto(first_col ? 0 : term.c.x, y);
|
||
}
|
||
|
||
void
|
||
csiparse(void) {
|
||
/* int noarg = 1; */
|
||
char *p = csiescseq.buf;
|
||
|
||
csiescseq.narg = 0;
|
||
if(*p == '?')
|
||
csiescseq.priv = 1, p++;
|
||
|
||
while(p < csiescseq.buf+csiescseq.len) {
|
||
while(isdigit(*p)) {
|
||
csiescseq.arg[csiescseq.narg] *= 10;
|
||
csiescseq.arg[csiescseq.narg] += *p++ - '0'/*, noarg = 0 */;
|
||
}
|
||
if(*p == ';' && csiescseq.narg+1 < ESC_ARG_SIZ) {
|
||
csiescseq.narg++, p++;
|
||
} else {
|
||
csiescseq.mode = *p;
|
||
csiescseq.narg++;
|
||
|
||
return;
|
||
}
|
||
}
|
||
}
|
||
|
||
void
|
||
tmoveto(int x, int y) {
|
||
LIMIT(x, 0, term.col-1);
|
||
LIMIT(y, 0, term.row-1);
|
||
term.c.state &= ~CURSOR_WRAPNEXT;
|
||
term.c.x = x;
|
||
term.c.y = y;
|
||
}
|
||
|
||
void
|
||
tsetchar(char *c) {
|
||
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.c.attr.mode & ATTR_GFX) {
|
||
if(c[0] >= 0x41 && c[0] <= 0x7e
|
||
&& vt100_0[c[0] - 0x41]) {
|
||
c = vt100_0[c[0] - 0x41];
|
||
}
|
||
}
|
||
|
||
term.dirty[term.c.y] = 1;
|
||
term.line[term.c.y][term.c.x] = term.c.attr;
|
||
memcpy(term.line[term.c.y][term.c.x].c, c, UTF_SIZ);
|
||
term.line[term.c.y][term.c.x].state |= GLYPH_SET;
|
||
}
|
||
|
||
void
|
||
tclearregion(int x1, int y1, int x2, int y2) {
|
||
int x, y, temp;
|
||
|
||
if(x1 > x2)
|
||
temp = x1, x1 = x2, x2 = temp;
|
||
if(y1 > y2)
|
||
temp = y1, y1 = y2, y2 = temp;
|
||
|
||
LIMIT(x1, 0, term.col-1);
|
||
LIMIT(x2, 0, term.col-1);
|
||
LIMIT(y1, 0, term.row-1);
|
||
LIMIT(y2, 0, term.row-1);
|
||
|
||
for(y = y1; y <= y2; y++) {
|
||
term.dirty[y] = 1;
|
||
for(x = x1; x <= x2; x++)
|
||
term.line[y][x].state = 0;
|
||
}
|
||
}
|
||
|
||
void
|
||
tdeletechar(int n) {
|
||
int src = term.c.x + n;
|
||
int dst = term.c.x;
|
||
int size = term.col - src;
|
||
|
||
term.dirty[term.c.y] = 1;
|
||
|
||
if(src >= term.col) {
|
||
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
|
||
return;
|
||
}
|
||
|
||
memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src],
|
||
size * sizeof(Glyph));
|
||
tclearregion(term.col-n, term.c.y, term.col-1, term.c.y);
|
||
}
|
||
|
||
void
|
||
tinsertblank(int n) {
|
||
int src = term.c.x;
|
||
int dst = src + n;
|
||
int size = term.col - dst;
|
||
|
||
term.dirty[term.c.y] = 1;
|
||
|
||
if(dst >= term.col) {
|
||
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
|
||
return;
|
||
}
|
||
|
||
memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src],
|
||
size * sizeof(Glyph));
|
||
tclearregion(src, term.c.y, dst - 1, term.c.y);
|
||
}
|
||
|
||
void
|
||
tinsertblankline(int n) {
|
||
if(term.c.y < term.top || term.c.y > term.bot)
|
||
return;
|
||
|
||
tscrolldown(term.c.y, n);
|
||
}
|
||
|
||
void
|
||
tdeleteline(int n) {
|
||
if(term.c.y < term.top || term.c.y > term.bot)
|
||
return;
|
||
|
||
tscrollup(term.c.y, n);
|
||
}
|
||
|
||
void
|
||
tsetattr(int *attr, int l) {
|
||
int i;
|
||
|
||
for(i = 0; i < l; i++) {
|
||
switch(attr[i]) {
|
||
case 0:
|
||
term.c.attr.mode &= ~(ATTR_REVERSE | ATTR_UNDERLINE | ATTR_BOLD \
|
||
| ATTR_ITALIC | ATTR_BLINK);
|
||
term.c.attr.fg = DefaultFG;
|
||
term.c.attr.bg = DefaultBG;
|
||
break;
|
||
case 1:
|
||
term.c.attr.mode |= ATTR_BOLD;
|
||
break;
|
||
case 3: /* enter standout (highlight) */
|
||
term.c.attr.mode |= ATTR_ITALIC;
|
||
break;
|
||
case 4:
|
||
term.c.attr.mode |= ATTR_UNDERLINE;
|
||
break;
|
||
case 5:
|
||
term.c.attr.mode |= ATTR_BLINK;
|
||
break;
|
||
case 7:
|
||
term.c.attr.mode |= ATTR_REVERSE;
|
||
break;
|
||
case 21:
|
||
case 22:
|
||
term.c.attr.mode &= ~ATTR_BOLD;
|
||
break;
|
||
case 23: /* leave standout (highlight) mode */
|
||
term.c.attr.mode &= ~ATTR_ITALIC;
|
||
break;
|
||
case 24:
|
||
term.c.attr.mode &= ~ATTR_UNDERLINE;
|
||
break;
|
||
case 25:
|
||
term.c.attr.mode &= ~ATTR_BLINK;
|
||
break;
|
||
case 27:
|
||
term.c.attr.mode &= ~ATTR_REVERSE;
|
||
break;
|
||
case 38:
|
||
if(i + 2 < l && attr[i + 1] == 5) {
|
||
i += 2;
|
||
if(BETWEEN(attr[i], 0, 255)) {
|
||
term.c.attr.fg = attr[i];
|
||
} else {
|
||
fprintf(stderr,
|
||
"erresc: bad fgcolor %d\n",
|
||
attr[i]);
|
||
}
|
||
} else {
|
||
fprintf(stderr,
|
||
"erresc(38): gfx attr %d unknown\n",
|
||
attr[i]);
|
||
}
|
||
break;
|
||
case 39:
|
||
term.c.attr.fg = DefaultFG;
|
||
break;
|
||
case 48:
|
||
if(i + 2 < l && attr[i + 1] == 5) {
|
||
i += 2;
|
||
if(BETWEEN(attr[i], 0, 255)) {
|
||
term.c.attr.bg = attr[i];
|
||
} else {
|
||
fprintf(stderr,
|
||
"erresc: bad bgcolor %d\n",
|
||
attr[i]);
|
||
}
|
||
} else {
|
||
fprintf(stderr,
|
||
"erresc(48): gfx attr %d unknown\n",
|
||
attr[i]);
|
||
}
|
||
break;
|
||
case 49:
|
||
term.c.attr.bg = DefaultBG;
|
||
break;
|
||
default:
|
||
if(BETWEEN(attr[i], 30, 37)) {
|
||
term.c.attr.fg = attr[i] - 30;
|
||
} else if(BETWEEN(attr[i], 40, 47)) {
|
||
term.c.attr.bg = attr[i] - 40;
|
||
} else if(BETWEEN(attr[i], 90, 97)) {
|
||
term.c.attr.fg = attr[i] - 90 + 8;
|
||
} else if(BETWEEN(attr[i], 100, 107)) {
|
||
term.c.attr.bg = attr[i] - 100 + 8;
|
||
} else {
|
||
fprintf(stderr,
|
||
"erresc(default): gfx attr %d unknown\n",
|
||
attr[i]), csidump();
|
||
}
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
void
|
||
tsetscroll(int t, int b) {
|
||
int temp;
|
||
|
||
LIMIT(t, 0, term.row-1);
|
||
LIMIT(b, 0, term.row-1);
|
||
if(t > b) {
|
||
temp = t;
|
||
t = b;
|
||
b = temp;
|
||
}
|
||
term.top = t;
|
||
term.bot = b;
|
||
}
|
||
|
||
#define MODBIT(x, set, bit) ((set) ? ((x) |= (bit)) : ((x) &= ~(bit)))
|
||
|
||
void
|
||
tsetmode(bool priv, bool set, int *args, int narg) {
|
||
int *lim, mode;
|
||
|
||
for(lim = args + narg; args < lim; ++args) {
|
||
if(priv) {
|
||
switch(*args) {
|
||
break;
|
||
case 1: /* DECCKM -- Cursor key */
|
||
MODBIT(term.mode, set, MODE_APPKEYPAD);
|
||
break;
|
||
case 5: /* DECSCNM -- Reverse video */
|
||
mode = term.mode;
|
||
MODBIT(term.mode, set, MODE_REVERSE);
|
||
if(mode != term.mode)
|
||
redraw();
|
||
break;
|
||
case 6: /* XXX: DECOM -- Origin */
|
||
break;
|
||
case 7: /* DECAWM -- Auto wrap */
|
||
MODBIT(term.mode, set, MODE_WRAP);
|
||
break;
|
||
case 8: /* XXX: DECARM -- Auto repeat */
|
||
break;
|
||
case 0: /* Error (IGNORED) */
|
||
case 12: /* att610 -- Start blinking cursor (IGNORED) */
|
||
break;
|
||
case 25:
|
||
MODBIT(term.c.state, !set, CURSOR_HIDE);
|
||
break;
|
||
case 1000: /* 1000,1002: enable xterm mouse report */
|
||
MODBIT(term.mode, set, MODE_MOUSEBTN);
|
||
break;
|
||
case 1002:
|
||
MODBIT(term.mode, set, MODE_MOUSEMOTION);
|
||
break;
|
||
case 1049: /* = 1047 and 1048 */
|
||
case 47:
|
||
case 1047:
|
||
if(IS_SET(MODE_ALTSCREEN))
|
||
tclearregion(0, 0, term.col-1, term.row-1);
|
||
if((set && !IS_SET(MODE_ALTSCREEN)) ||
|
||
(!set && IS_SET(MODE_ALTSCREEN))) {
|
||
tswapscreen();
|
||
}
|
||
if(*args != 1049)
|
||
break;
|
||
/* pass through */
|
||
case 1048:
|
||
tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
|
||
break;
|
||
default:
|
||
/* case 2: DECANM -- ANSI/VT52 (NOT SUPPOURTED) */
|
||
/* case 3: DECCOLM -- Column (NOT SUPPORTED) */
|
||
/* case 4: DECSCLM -- Scroll (NOT SUPPORTED) */
|
||
/* case 18: DECPFF -- Printer feed (NOT SUPPORTED) */
|
||
/* case 19: DECPEX -- Printer extent (NOT SUPPORTED) */
|
||
/* case 42: DECNRCM -- National characters (NOT SUPPORTED) */
|
||
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: /* XXX: SRM -- Send/Receive */
|
||
break;
|
||
case 20: /* LNM -- Linefeed/new line */
|
||
MODBIT(term.mode, set, MODE_CRLF);
|
||
break;
|
||
default:
|
||
fprintf(stderr,
|
||
"erresc: unknown set/reset mode %d\n",
|
||
*args);
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
#undef MODBIT
|
||
|
||
|
||
void
|
||
csihandle(void) {
|
||
switch(csiescseq.mode) {
|
||
default:
|
||
unknown:
|
||
fprintf(stderr, "erresc: unknown csi ");
|
||
csidump();
|
||
/* die(""); */
|
||
break;
|
||
case '@': /* ICH -- Insert <n> blank char */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tinsertblank(csiescseq.arg[0]);
|
||
break;
|
||
case 'A': /* CUU -- Cursor <n> Up */
|
||
case 'e':
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tmoveto(term.c.x, term.c.y-csiescseq.arg[0]);
|
||
break;
|
||
case 'B': /* CUD -- Cursor <n> Down */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tmoveto(term.c.x, term.c.y+csiescseq.arg[0]);
|
||
break;
|
||
case 'C': /* CUF -- Cursor <n> Forward */
|
||
case 'a':
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tmoveto(term.c.x+csiescseq.arg[0], term.c.y);
|
||
break;
|
||
case 'D': /* CUB -- Cursor <n> Backward */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tmoveto(term.c.x-csiescseq.arg[0], term.c.y);
|
||
break;
|
||
case 'E': /* CNL -- Cursor <n> Down and first col */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tmoveto(0, term.c.y+csiescseq.arg[0]);
|
||
break;
|
||
case 'F': /* CPL -- Cursor <n> Up and first col */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tmoveto(0, term.c.y-csiescseq.arg[0]);
|
||
break;
|
||
case 'g': /* TBC -- Tabulation clear */
|
||
switch (csiescseq.arg[0]) {
|
||
case 0: /* clear current tab stop */
|
||
term.tabs[term.c.x] = 0;
|
||
break;
|
||
case 3: /* clear all the tabs */
|
||
memset(term.tabs, 0, term.col * sizeof(*term.tabs));
|
||
break;
|
||
default:
|
||
goto unknown;
|
||
}
|
||
break;
|
||
case 'G': /* CHA -- Move to <col> */
|
||
case '`': /* HPA */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tmoveto(csiescseq.arg[0]-1, term.c.y);
|
||
break;
|
||
case 'H': /* CUP -- Move to <row> <col> */
|
||
case 'f': /* HVP */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
DEFAULT(csiescseq.arg[1], 1);
|
||
tmoveto(csiescseq.arg[1]-1, csiescseq.arg[0]-1);
|
||
break;
|
||
case 'I': /* CHT -- Cursor Forward Tabulation <n> tab stops */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
while(csiescseq.arg[0]--)
|
||
tputtab(1);
|
||
break;
|
||
case 'J': /* ED -- Clear screen */
|
||
sel.bx = -1;
|
||
switch(csiescseq.arg[0]) {
|
||
case 0: /* below */
|
||
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
|
||
if(term.c.y < term.row-1)
|
||
tclearregion(0, term.c.y+1, term.col-1, term.row-1);
|
||
break;
|
||
case 1: /* above */
|
||
if(term.c.y > 1)
|
||
tclearregion(0, 0, term.col-1, term.c.y-1);
|
||
tclearregion(0, term.c.y, term.c.x, term.c.y);
|
||
break;
|
||
case 2: /* all */
|
||
tclearregion(0, 0, term.col-1, term.row-1);
|
||
break;
|
||
default:
|
||
goto unknown;
|
||
}
|
||
break;
|
||
case 'K': /* EL -- Clear line */
|
||
switch(csiescseq.arg[0]) {
|
||
case 0: /* right */
|
||
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
|
||
break;
|
||
case 1: /* left */
|
||
tclearregion(0, term.c.y, term.c.x, term.c.y);
|
||
break;
|
||
case 2: /* all */
|
||
tclearregion(0, term.c.y, term.col-1, term.c.y);
|
||
break;
|
||
}
|
||
break;
|
||
case 'S': /* SU -- Scroll <n> line up */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tscrollup(term.top, csiescseq.arg[0]);
|
||
break;
|
||
case 'T': /* SD -- Scroll <n> line down */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tscrolldown(term.top, csiescseq.arg[0]);
|
||
break;
|
||
case 'L': /* IL -- Insert <n> blank lines */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tinsertblankline(csiescseq.arg[0]);
|
||
break;
|
||
case 'l': /* RM -- Reset Mode */
|
||
tsetmode(csiescseq.priv, 0, csiescseq.arg, csiescseq.narg);
|
||
break;
|
||
case 'M': /* DL -- Delete <n> lines */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tdeleteline(csiescseq.arg[0]);
|
||
break;
|
||
case 'X': /* ECH -- Erase <n> char */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tclearregion(term.c.x, term.c.y, term.c.x + csiescseq.arg[0], term.c.y);
|
||
break;
|
||
case 'P': /* DCH -- Delete <n> char */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tdeletechar(csiescseq.arg[0]);
|
||
break;
|
||
case 'Z': /* CBT -- Cursor Backward Tabulation <n> tab stops */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
while(csiescseq.arg[0]--)
|
||
tputtab(0);
|
||
break;
|
||
case 'd': /* VPA -- Move to <row> */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tmoveto(term.c.x, csiescseq.arg[0]-1);
|
||
break;
|
||
case 'h': /* SM -- Set terminal mode */
|
||
tsetmode(csiescseq.priv, 1, csiescseq.arg, csiescseq.narg);
|
||
break;
|
||
case 'm': /* SGR -- Terminal attribute (color) */
|
||
tsetattr(csiescseq.arg, csiescseq.narg);
|
||
break;
|
||
case 'r': /* DECSTBM -- Set Scrolling Region */
|
||
if(csiescseq.priv) {
|
||
goto unknown;
|
||
} else {
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
DEFAULT(csiescseq.arg[1], term.row);
|
||
tsetscroll(csiescseq.arg[0]-1, csiescseq.arg[1]-1);
|
||
tmoveto(0, 0);
|
||
}
|
||
break;
|
||
case 's': /* DECSC -- Save cursor position (ANSI.SYS) */
|
||
tcursor(CURSOR_SAVE);
|
||
break;
|
||
case 'u': /* DECRC -- Restore cursor position (ANSI.SYS) */
|
||
tcursor(CURSOR_LOAD);
|
||
break;
|
||
}
|
||
}
|
||
|
||
void
|
||
csidump(void) {
|
||
int i;
|
||
uint c;
|
||
|
||
printf("ESC[");
|
||
for(i = 0; i < csiescseq.len; i++) {
|
||
c = csiescseq.buf[i] & 0xff;
|
||
if(isprint(c)) {
|
||
putchar(c);
|
||
} else if(c == '\n') {
|
||
printf("(\\n)");
|
||
} else if(c == '\r') {
|
||
printf("(\\r)");
|
||
} else if(c == 0x1b) {
|
||
printf("(\\e)");
|
||
} else {
|
||
printf("(%02x)", c);
|
||
}
|
||
}
|
||
putchar('\n');
|
||
}
|
||
|
||
void
|
||
csireset(void) {
|
||
memset(&csiescseq, 0, sizeof(csiescseq));
|
||
}
|
||
|
||
void
|
||
strhandle(void) {
|
||
char *p;
|
||
|
||
/*
|
||
* TODO: make this being useful in case of color palette change.
|
||
*/
|
||
strparse();
|
||
|
||
p = strescseq.buf;
|
||
|
||
switch(strescseq.type) {
|
||
case ']': /* OSC -- Operating System Command */
|
||
switch(p[0]) {
|
||
case '0':
|
||
case '1':
|
||
case '2':
|
||
/*
|
||
* TODO: Handle special chars in string, like umlauts.
|
||
*/
|
||
if(p[1] == ';') {
|
||
XStoreName(xw.dpy, xw.win, strescseq.buf+2);
|
||
}
|
||
break;
|
||
case ';':
|
||
XStoreName(xw.dpy, xw.win, strescseq.buf+1);
|
||
break;
|
||
case '4': /* TODO: Set color (arg0) to "rgb:%hexr/$hexg/$hexb" (arg1) */
|
||
break;
|
||
default:
|
||
fprintf(stderr, "erresc: unknown str ");
|
||
strdump();
|
||
break;
|
||
}
|
||
break;
|
||
case 'k': /* old title set compatibility */
|
||
XStoreName(xw.dpy, xw.win, strescseq.buf);
|
||
break;
|
||
case 'P': /* DSC -- Device Control String */
|
||
case '_': /* APC -- Application Program Command */
|
||
case '^': /* PM -- Privacy Message */
|
||
default:
|
||
fprintf(stderr, "erresc: unknown str ");
|
||
strdump();
|
||
/* die(""); */
|
||
break;
|
||
}
|
||
}
|
||
|
||
void
|
||
strparse(void) {
|
||
/*
|
||
* TODO: Implement parsing like for CSI when required.
|
||
* Format: ESC type cmd ';' arg0 [';' argn] ESC \
|
||
*/
|
||
return;
|
||
}
|
||
|
||
void
|
||
strdump(void) {
|
||
int i;
|
||
uint c;
|
||
|
||
printf("ESC%c", strescseq.type);
|
||
for(i = 0; i < strescseq.len; i++) {
|
||
c = strescseq.buf[i] & 0xff;
|
||
if(isprint(c)) {
|
||
putchar(c);
|
||
} else if(c == '\n') {
|
||
printf("(\\n)");
|
||
} else if(c == '\r') {
|
||
printf("(\\r)");
|
||
} else if(c == 0x1b) {
|
||
printf("(\\e)");
|
||
} else {
|
||
printf("(%02x)", c);
|
||
}
|
||
}
|
||
printf("ESC\\\n");
|
||
}
|
||
|
||
void
|
||
strreset(void) {
|
||
memset(&strescseq, 0, sizeof(strescseq));
|
||
}
|
||
|
||
void
|
||
tputtab(bool forward) {
|
||
uint x = term.c.x;
|
||
|
||
if(forward) {
|
||
if(x == term.col)
|
||
return;
|
||
for(++x; x < term.col && !term.tabs[x]; ++x)
|
||
/* nothing */ ;
|
||
} else {
|
||
if(x == 0)
|
||
return;
|
||
for(--x; x > 0 && !term.tabs[x]; --x)
|
||
/* nothing */ ;
|
||
}
|
||
tmoveto(x, term.c.y);
|
||
}
|
||
|
||
void
|
||
tputc(char *c, int len) {
|
||
uchar ascii = *c;
|
||
|
||
if(iofd != -1)
|
||
write(iofd, c, len);
|
||
|
||
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)
|
||
break;
|
||
if(!(xw.state & WIN_FOCUSED))
|
||
xseturgency(1);
|
||
return;
|
||
case '\033': /* ESC */
|
||
csireset();
|
||
term.esc = ESC_START;
|
||
return;
|
||
case '\016': /* XXX: SO */
|
||
case '\017': /* XXX: SI */
|
||
case '\032': /* XXX: SUB */
|
||
case '\030': /* XXX: CAN */
|
||
default:
|
||
/* case '\005': ENQ (IGNORED) */
|
||
/* case '\000': NUL (IGNORED) */
|
||
/* case '\021': XON (IGNORED) */
|
||
/* case '\023': XOFF (IGNORED) */
|
||
/* case 0177: DEL (IGNORED) */
|
||
break;
|
||
}
|
||
|
||
if(term.esc & ESC_START) {
|
||
if(term.esc & ESC_CSI) {
|
||
csiescseq.buf[csiescseq.len++] = ascii;
|
||
if(BETWEEN(ascii, 0x40, 0x7E)
|
||
|| csiescseq.len >= ESC_BUF_SIZ) {
|
||
term.esc = 0;
|
||
csiparse(), csihandle();
|
||
}
|
||
} else if(term.esc & ESC_STR) {
|
||
switch(ascii) {
|
||
case '\033':
|
||
term.esc = ESC_START | ESC_STR_END;
|
||
break;
|
||
case '\a': /* backwards compatibility to xterm */
|
||
term.esc = 0;
|
||
strhandle();
|
||
break;
|
||
default:
|
||
strescseq.buf[strescseq.len++] = ascii;
|
||
if(strescseq.len+1 >= STR_BUF_SIZ) {
|
||
term.esc = 0;
|
||
strhandle();
|
||
}
|
||
}
|
||
} else if(term.esc & ESC_STR_END) {
|
||
term.esc = 0;
|
||
if(ascii == '\\')
|
||
strhandle();
|
||
} else if(term.esc & ESC_ALTCHARSET) {
|
||
switch(ascii) {
|
||
case '0': /* Line drawing set */
|
||
term.c.attr.mode |= ATTR_GFX;
|
||
break;
|
||
case 'B': /* USASCII */
|
||
term.c.attr.mode &= ~ATTR_GFX;
|
||
break;
|
||
case 'A': /* UK (IGNORED) */
|
||
case '<': /* multinational charset (IGNORED) */
|
||
case '5': /* Finnish (IGNORED) */
|
||
case 'C': /* Finnish (IGNORED) */
|
||
case 'K': /* German (IGNORED) */
|
||
break;
|
||
default:
|
||
fprintf(stderr, "esc unhandled charset: ESC ( %c\n", ascii);
|
||
}
|
||
term.esc = 0;
|
||
} else {
|
||
switch(ascii) {
|
||
case '[':
|
||
term.esc |= ESC_CSI;
|
||
break;
|
||
case 'P': /* DCS -- Device Control String */
|
||
case '_': /* APC -- Application Program Command */
|
||
case '^': /* PM -- Privacy Message */
|
||
case ']': /* OSC -- Operating System Command */
|
||
case 'k': /* old title set compatibility */
|
||
strreset();
|
||
strescseq.type = ascii;
|
||
term.esc |= ESC_STR;
|
||
break;
|
||
case '(': /* set primary charset G0 */
|
||
term.esc |= ESC_ALTCHARSET;
|
||
break;
|
||
case ')': /* set secondary charset G1 (IGNORED) */
|
||
case '*': /* set tertiary charset G2 (IGNORED) */
|
||
case '+': /* set quaternary charset G3 (IGNORED) */
|
||
term.esc = 0;
|
||
break;
|
||
case 'D': /* IND -- Linefeed */
|
||
if(term.c.y == term.bot) {
|
||
tscrollup(term.top, 1);
|
||
} else {
|
||
tmoveto(term.c.x, term.c.y+1);
|
||
}
|
||
term.esc = 0;
|
||
break;
|
||
case 'E': /* NEL -- Next line */
|
||
tnewline(1); /* always go to first col */
|
||
term.esc = 0;
|
||
break;
|
||
case 'H': /* HTS -- Horizontal tab stop */
|
||
term.tabs[term.c.x] = 1;
|
||
term.esc = 0;
|
||
break;
|
||
case 'M': /* RI -- Reverse index */
|
||
if(term.c.y == term.top) {
|
||
tscrolldown(term.top, 1);
|
||
} else {
|
||
tmoveto(term.c.x, term.c.y-1);
|
||
}
|
||
term.esc = 0;
|
||
break;
|
||
case 'c': /* RIS -- Reset to inital state */
|
||
treset();
|
||
term.esc = 0;
|
||
xresettitle();
|
||
break;
|
||
case '=': /* DECPAM -- Application keypad */
|
||
term.mode |= MODE_APPKEYPAD;
|
||
term.esc = 0;
|
||
break;
|
||
case '>': /* DECPNM -- Normal keypad */
|
||
term.mode &= ~MODE_APPKEYPAD;
|
||
term.esc = 0;
|
||
break;
|
||
case '7': /* DECSC -- Save Cursor */
|
||
tcursor(CURSOR_SAVE);
|
||
term.esc = 0;
|
||
break;
|
||
case '8': /* DECRC -- Restore Cursor */
|
||
tcursor(CURSOR_LOAD);
|
||
term.esc = 0;
|
||
break;
|
||
case '\\': /* ST -- Stop */
|
||
term.esc = 0;
|
||
break;
|
||
default:
|
||
fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n",
|
||
(uchar) ascii, isprint(ascii)? ascii:'.');
|
||
term.esc = 0;
|
||
}
|
||
}
|
||
} else {
|
||
if(sel.bx != -1 && BETWEEN(term.c.y, sel.by, sel.ey))
|
||
sel.bx = -1;
|
||
if(ascii >= '\020' || term.c.attr.mode & ATTR_GFX) {
|
||
if(IS_SET(MODE_WRAP) && term.c.state & CURSOR_WRAPNEXT)
|
||
tnewline(1); /* always go to first col */
|
||
tsetchar(c);
|
||
if(term.c.x+1 < term.col) {
|
||
tmoveto(term.c.x+1, term.c.y);
|
||
} else {
|
||
term.c.state |= CURSOR_WRAPNEXT;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
int
|
||
tresize(int col, int row) {
|
||
int i, x;
|
||
int minrow = MIN(row, term.row);
|
||
int mincol = MIN(col, term.col);
|
||
int slide = term.c.y - row + 1;
|
||
bool *bp;
|
||
|
||
if(col < 1 || row < 1)
|
||
return 0;
|
||
|
||
/* free unneeded rows */
|
||
i = 0;
|
||
if(slide > 0) {
|
||
/* slide screen to keep cursor where we expect it -
|
||
* tscrollup would work here, but we can optimize to
|
||
* memmove because we're freeing the earlier lines */
|
||
for(/* i = 0 */; i < slide; i++) {
|
||
free(term.line[i]);
|
||
free(term.alt[i]);
|
||
}
|
||
memmove(term.line, term.line + slide, row * sizeof(Line));
|
||
memmove(term.alt, term.alt + slide, row * sizeof(Line));
|
||
}
|
||
for(i += row; i < term.row; i++) {
|
||
free(term.line[i]);
|
||
free(term.alt[i]);
|
||
}
|
||
|
||
/* resize to new height */
|
||
term.line = xrealloc(term.line, row * sizeof(Line));
|
||
term.alt = xrealloc(term.alt, row * sizeof(Line));
|
||
term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty));
|
||
term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs));
|
||
|
||
/* resize each row to new width, zero-pad if needed */
|
||
for(i = 0; i < minrow; i++) {
|
||
term.dirty[i] = 1;
|
||
term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph));
|
||
term.alt[i] = xrealloc(term.alt[i], col * sizeof(Glyph));
|
||
for(x = mincol; x < col; x++) {
|
||
term.line[i][x].state = 0;
|
||
term.alt[i][x].state = 0;
|
||
}
|
||
}
|
||
|
||
/* allocate any new rows */
|
||
for(/* i == minrow */; i < row; i++) {
|
||
term.dirty[i] = 1;
|
||
term.line[i] = xcalloc(col, sizeof(Glyph));
|
||
term.alt [i] = xcalloc(col, sizeof(Glyph));
|
||
}
|
||
if(col > term.col) {
|
||
bp = term.tabs + term.col;
|
||
|
||
memset(bp, 0, sizeof(*term.tabs) * (col - term.col));
|
||
while(--bp > term.tabs && !*bp)
|
||
/* nothing */ ;
|
||
for(bp += TAB; bp < term.tabs + col; bp += TAB)
|
||
*bp = 1;
|
||
}
|
||
/* update terminal size */
|
||
term.col = col, term.row = row;
|
||
/* make use of the LIMIT in tmoveto */
|
||
tmoveto(term.c.x, term.c.y);
|
||
/* reset scrolling region */
|
||
tsetscroll(0, row-1);
|
||
|
||
return (slide > 0);
|
||
}
|
||
|
||
void
|
||
xresize(int col, int row) {
|
||
xw.tw = MAX(1, 2*BORDER + col * xw.cw);
|
||
xw.th = MAX(1, 2*BORDER + row * xw.ch);
|
||
|
||
XftDrawChange(xw.xft_draw, xw.buf);
|
||
}
|
||
|
||
void
|
||
xloadcols(void) {
|
||
int i, r, g, b;
|
||
XRenderColor xft_color = { .alpha = 0 };
|
||
|
||
/* load colors [0-15] colors and [256-LEN(colorname)[ (config.h) */
|
||
for(i = 0; i < LEN(colorname); i++) {
|
||
if(!colorname[i])
|
||
continue;
|
||
if(!XftColorAllocName(xw.dpy, xw.vis, xw.cmap, colorname[i], &dc.xft_col[i])) {
|
||
die("Could not allocate color '%s'\n", colorname[i]);
|
||
}
|
||
}
|
||
|
||
/* load colors [16-255] ; same colors as xterm */
|
||
for(i = 16, r = 0; r < 6; r++) {
|
||
for(g = 0; g < 6; g++) {
|
||
for(b = 0; b < 6; b++) {
|
||
xft_color.red = r == 0 ? 0 : 0x3737 + 0x2828 * r;
|
||
xft_color.green = g == 0 ? 0 : 0x3737 + 0x2828 * g;
|
||
xft_color.blue = b == 0 ? 0 : 0x3737 + 0x2828 * b;
|
||
if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &xft_color, &dc.xft_col[i])) {
|
||
die("Could not allocate color %d\n", i);
|
||
}
|
||
i++;
|
||
}
|
||
}
|
||
}
|
||
|
||
for(r = 0; r < 24; r++, i++) {
|
||
xft_color.red = xft_color.green = xft_color.blue = 0x0808 + 0x0a0a * r;
|
||
if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &xft_color,
|
||
&dc.xft_col[i])) {
|
||
die("Could not allocate color %d\n", i);
|
||
}
|
||
}
|
||
}
|
||
|
||
void
|
||
xtermclear(int col1, int row1, int col2, int row2) {
|
||
XftDrawRect(xw.xft_draw,
|
||
&dc.xft_col[IS_SET(MODE_REVERSE) ? DefaultFG : DefaultBG],
|
||
BORDER + col1 * xw.cw,
|
||
BORDER + 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.xft_draw,
|
||
&dc.xft_col[IS_SET(MODE_REVERSE) ? DefaultFG : DefaultBG],
|
||
x1, y1, x2-x1, y2-y1);
|
||
}
|
||
|
||
void
|
||
xhints(void) {
|
||
XClassHint class = {opt_class ? opt_class : TNAME, TNAME};
|
||
XWMHints wm = {.flags = InputHint, .input = 1};
|
||
XSizeHints *sizeh = NULL;
|
||
|
||
sizeh = XAllocSizeHints();
|
||
if(xw.isfixed == False) {
|
||
sizeh->flags = PSize | PResizeInc | PBaseSize;
|
||
sizeh->height = xw.h;
|
||
sizeh->width = xw.w;
|
||
sizeh->height_inc = xw.ch;
|
||
sizeh->width_inc = xw.cw;
|
||
sizeh->base_height = 2*BORDER;
|
||
sizeh->base_width = 2*BORDER;
|
||
} else {
|
||
sizeh->flags = PMaxSize | PMinSize;
|
||
sizeh->min_width = sizeh->max_width = xw.fw;
|
||
sizeh->min_height = sizeh->max_height = xw.fh;
|
||
}
|
||
|
||
XSetWMProperties(xw.dpy, xw.win, NULL, NULL, NULL, 0, sizeh, &wm, &class);
|
||
XFree(sizeh);
|
||
}
|
||
|
||
void
|
||
xinitfont(Font *f, char *fontstr) {
|
||
FcPattern *pattern, *match;
|
||
FcResult result;
|
||
|
||
pattern = FcNameParse((FcChar8 *)fontstr);
|
||
if(!pattern)
|
||
die("st: can't open font %s\n", fontstr);
|
||
|
||
match = XftFontMatch(xw.dpy, xw.scr, pattern, &result);
|
||
FcPatternDestroy(pattern);
|
||
if(!match)
|
||
die("st: can't open font %s\n", fontstr);
|
||
if(!(f->xft_set = XftFontOpenPattern(xw.dpy, match))) {
|
||
FcPatternDestroy(match);
|
||
die("st: can't open font %s.\n", fontstr);
|
||
}
|
||
|
||
f->ascent = f->xft_set->ascent;
|
||
f->descent = f->xft_set->descent;
|
||
f->lbearing = 0;
|
||
f->rbearing = f->xft_set->max_advance_width;
|
||
|
||
f->height = f->xft_set->height;
|
||
f->width = f->lbearing + f->rbearing;
|
||
}
|
||
|
||
void
|
||
initfonts(char *fontstr) {
|
||
char *fstr;
|
||
|
||
xinitfont(&dc.font, fontstr);
|
||
xw.cw = dc.font.width;
|
||
xw.ch = dc.font.height;
|
||
|
||
fstr = smstrcat(fontstr, ":weight=bold", NULL);
|
||
xinitfont(&dc.bfont, fstr);
|
||
free(fstr);
|
||
|
||
fstr = smstrcat(fontstr, ":slant=italic,oblique", NULL);
|
||
xinitfont(&dc.ifont, fstr);
|
||
free(fstr);
|
||
|
||
fstr = smstrcat(fontstr, ":weight=bold:slant=italic,oblique", NULL);
|
||
xinitfont(&dc.ibfont, fstr);
|
||
free(fstr);
|
||
}
|
||
|
||
void
|
||
xinit(void) {
|
||
XSetWindowAttributes attrs;
|
||
Cursor cursor;
|
||
Window parent;
|
||
int sw, sh, major, minor;
|
||
|
||
if(!(xw.dpy = XOpenDisplay(NULL)))
|
||
die("Can't open display\n");
|
||
xw.scr = XDefaultScreen(xw.dpy);
|
||
xw.vis = XDefaultVisual(xw.dpy, xw.scr);
|
||
|
||
/* font */
|
||
initfonts((opt_font != NULL)? opt_font : FONT);
|
||
|
||
/* colors */
|
||
xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
|
||
xloadcols();
|
||
|
||
/* adjust fixed window geometry */
|
||
if(xw.isfixed) {
|
||
sw = DisplayWidth(xw.dpy, xw.scr);
|
||
sh = DisplayHeight(xw.dpy, xw.scr);
|
||
if(xw.fx < 0)
|
||
xw.fx = sw + xw.fx - xw.fw - 1;
|
||
if(xw.fy < 0)
|
||
xw.fy = sh + xw.fy - xw.fh - 1;
|
||
|
||
xw.h = xw.fh;
|
||
xw.w = xw.fw;
|
||
} else {
|
||
/* window - default size */
|
||
xw.h = 2*BORDER + term.row * xw.ch;
|
||
xw.w = 2*BORDER + term.col * xw.cw;
|
||
xw.fx = 0;
|
||
xw.fy = 0;
|
||
}
|
||
|
||
attrs.background_pixel = dc.xft_col[DefaultBG].pixel;
|
||
attrs.border_pixel = dc.xft_col[DefaultBG].pixel;
|
||
attrs.bit_gravity = NorthWestGravity;
|
||
attrs.event_mask = FocusChangeMask | KeyPressMask
|
||
| ExposureMask | VisibilityChangeMask | StructureNotifyMask
|
||
| ButtonMotionMask | ButtonPressMask | ButtonReleaseMask;
|
||
attrs.colormap = xw.cmap;
|
||
|
||
parent = opt_embed ? strtol(opt_embed, NULL, 0) : XRootWindow(xw.dpy, xw.scr);
|
||
xw.win = XCreateWindow(xw.dpy, parent, xw.fx, xw.fy,
|
||
xw.w, xw.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
|
||
xw.vis,
|
||
CWBackPixel | CWBorderPixel | CWBitGravity | CWEventMask
|
||
| CWColormap,
|
||
&attrs);
|
||
|
||
/* double buffering */
|
||
if(!XdbeQueryExtension(xw.dpy, &major, &minor))
|
||
die("Xdbe extension is not present\n");
|
||
xw.buf = XdbeAllocateBackBufferName(xw.dpy, xw.win, XdbeCopied);
|
||
|
||
/* Xft rendering context */
|
||
xw.xft_draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap);
|
||
|
||
/* input methods */
|
||
xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL);
|
||
xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing
|
||
| XIMStatusNothing, XNClientWindow, xw.win,
|
||
XNFocusWindow, xw.win, NULL);
|
||
/* gc */
|
||
dc.gc = XCreateGC(xw.dpy, xw.win, 0, NULL);
|
||
|
||
/* white cursor, black outline */
|
||
cursor = XCreateFontCursor(xw.dpy, XC_xterm);
|
||
XDefineCursor(xw.dpy, xw.win, cursor);
|
||
XRecolorCursor(xw.dpy, cursor,
|
||
&(XColor){.red = 0xffff, .green = 0xffff, .blue = 0xffff},
|
||
&(XColor){.red = 0x0000, .green = 0x0000, .blue = 0x0000});
|
||
|
||
xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False);
|
||
xw.wmdeletewin = XInternAtom(xw.dpy, "WM_DELETE_WINDOW", False);
|
||
XSetWMProtocols(xw.dpy, xw.win, &xw.wmdeletewin, 1);
|
||
|
||
xresettitle();
|
||
XMapWindow(xw.dpy, xw.win);
|
||
xhints();
|
||
XSync(xw.dpy, 0);
|
||
}
|
||
|
||
void
|
||
xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
|
||
int winx = BORDER + x * xw.cw, winy = BORDER + y * xw.ch,
|
||
width = charlen * xw.cw;
|
||
Font *font = &dc.font;
|
||
XGlyphInfo extents;
|
||
XftColor *fg = &dc.xft_col[base.fg], *bg = &dc.xft_col[base.bg],
|
||
*temp, revfg, revbg;
|
||
XRenderColor colfg, colbg;
|
||
|
||
if(base.mode & ATTR_REVERSE)
|
||
temp = fg, fg = bg, bg = temp;
|
||
|
||
if(base.mode & ATTR_BOLD) {
|
||
if(BETWEEN(base.fg, 0, 7)) {
|
||
/* basic system colors */
|
||
fg = &dc.xft_col[base.fg + 8];
|
||
} else if(BETWEEN(base.fg, 16, 195)) {
|
||
/* 256 colors */
|
||
fg = &dc.xft_col[base.fg + 36];
|
||
} else if(BETWEEN(base.fg, 232, 251)) {
|
||
/* greyscale */
|
||
fg = &dc.xft_col[base.fg + 4];
|
||
}
|
||
/*
|
||
* Those ranges will not be brightened:
|
||
* 8 - 15 – bright system colors
|
||
* 196 - 231 – highest 256 color cube
|
||
* 252 - 255 – brightest colors in grescale
|
||
*/
|
||
font = &dc.bfont;
|
||
}
|
||
|
||
if(base.mode & ATTR_ITALIC)
|
||
font = &dc.ifont;
|
||
if(base.mode & (ATTR_ITALIC|ATTR_ITALIC))
|
||
font = &dc.ibfont;
|
||
|
||
if(IS_SET(MODE_REVERSE)) {
|
||
if(fg == &dc.xft_col[DefaultFG]) {
|
||
fg = &dc.xft_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.xft_col[DefaultBG]) {
|
||
bg = &dc.xft_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;
|
||
}
|
||
}
|
||
|
||
XftTextExtentsUtf8(xw.dpy, font->xft_set, (FcChar8 *)s, bytelen,
|
||
&extents);
|
||
width = extents.xOff;
|
||
|
||
/* Intelligent cleaning up of the borders. */
|
||
if(x == 0) {
|
||
xclear(0, (y == 0)? 0 : winy, BORDER,
|
||
winy + xw.ch + (y == term.row-1)? xw.h : 0);
|
||
}
|
||
if(x + charlen >= term.col-1) {
|
||
xclear(winx + width, (y == 0)? 0 : winy, xw.w,
|
||
winy + xw.ch + (y == term.row-1)? xw.h : 0);
|
||
}
|
||
if(y == 0)
|
||
xclear(winx, 0, winx + width, BORDER);
|
||
if(y == term.row-1)
|
||
xclear(winx, winy + xw.ch, winx + width, xw.h);
|
||
|
||
XftDrawRect(xw.xft_draw, bg, winx, winy, width, xw.ch);
|
||
XftDrawStringUtf8(xw.xft_draw, fg, font->xft_set, winx,
|
||
winy + font->ascent, (FcChar8 *)s, bytelen);
|
||
|
||
if(base.mode & ATTR_UNDERLINE) {
|
||
XftDrawRect(xw.xft_draw, fg, winx, winy + font->ascent + 1,
|
||
width, 1);
|
||
}
|
||
}
|
||
|
||
void
|
||
xdrawcursor(void) {
|
||
static int oldx = 0, oldy = 0;
|
||
int sl;
|
||
Glyph g = {{' '}, ATTR_NULL, DefaultBG, DefaultCS, 0};
|
||
|
||
LIMIT(oldx, 0, term.col-1);
|
||
LIMIT(oldy, 0, term.row-1);
|
||
|
||
if(term.line[term.c.y][term.c.x].state & GLYPH_SET)
|
||
memcpy(g.c, term.line[term.c.y][term.c.x].c, UTF_SIZ);
|
||
|
||
/* remove the old cursor */
|
||
if(term.line[oldy][oldx].state & GLYPH_SET) {
|
||
sl = utf8size(term.line[oldy][oldx].c);
|
||
xdraws(term.line[oldy][oldx].c, term.line[oldy][oldx], oldx,
|
||
oldy, 1, sl);
|
||
} else {
|
||
xtermclear(oldx, oldy, oldx, oldy);
|
||
}
|
||
|
||
/* draw the new one */
|
||
if(!(term.c.state & CURSOR_HIDE)) {
|
||
if(!(xw.state & WIN_FOCUSED))
|
||
g.bg = DefaultUCS;
|
||
|
||
if(IS_SET(MODE_REVERSE))
|
||
g.mode |= ATTR_REVERSE, g.fg = DefaultCS, g.bg = DefaultFG;
|
||
|
||
sl = utf8size(g.c);
|
||
xdraws(g.c, g, term.c.x, term.c.y, 1, sl);
|
||
oldx = term.c.x, oldy = term.c.y;
|
||
}
|
||
}
|
||
|
||
void
|
||
xresettitle(void) {
|
||
XStoreName(xw.dpy, xw.win, opt_title ? opt_title : "st");
|
||
}
|
||
|
||
void
|
||
redraw(void) {
|
||
struct timespec tv = {0, REDRAW_TIMEOUT * 1000};
|
||
|
||
tfulldirt();
|
||
draw();
|
||
XSync(xw.dpy, False); /* necessary for a good tput flash */
|
||
nanosleep(&tv, NULL);
|
||
}
|
||
|
||
void
|
||
draw(void) {
|
||
XdbeSwapInfo swpinfo[1] = {{xw.win, XdbeCopied}};
|
||
|
||
drawregion(0, 0, term.col, term.row);
|
||
XdbeSwapBuffers(xw.dpy, swpinfo, 1);
|
||
}
|
||
|
||
void
|
||
drawregion(int x1, int y1, int x2, int y2) {
|
||
int ic, ib, x, y, ox, sl;
|
||
Glyph base, new;
|
||
char buf[DRAW_BUF_SIZ];
|
||
bool ena_sel = sel.bx != -1, alt = IS_SET(MODE_ALTSCREEN);
|
||
|
||
if((sel.alt && !alt) || (!sel.alt && alt))
|
||
ena_sel = 0;
|
||
if(!(xw.state & WIN_VISIBLE))
|
||
return;
|
||
|
||
for(y = y1; y < y2; y++) {
|
||
if(!term.dirty[y])
|
||
continue;
|
||
|
||
xtermclear(0, y, term.col, y);
|
||
term.dirty[y] = 0;
|
||
base = term.line[y][0];
|
||
ic = ib = ox = 0;
|
||
for(x = x1; x < x2; x++) {
|
||
new = term.line[y][x];
|
||
if(ena_sel && *(new.c) && selected(x, y))
|
||
new.mode ^= ATTR_REVERSE;
|
||
if(ib > 0 && (!(new.state & GLYPH_SET)
|
||
|| ATTRCMP(base, new)
|
||
|| ib >= DRAW_BUF_SIZ-UTF_SIZ)) {
|
||
xdraws(buf, base, ox, y, ic, ib);
|
||
ic = ib = 0;
|
||
}
|
||
if(new.state & GLYPH_SET) {
|
||
if(ib == 0) {
|
||
ox = x;
|
||
base = new;
|
||
}
|
||
sl = utf8size(new.c);
|
||
memcpy(buf+ib, new.c, sl);
|
||
ib += sl;
|
||
++ic;
|
||
}
|
||
}
|
||
if(ib > 0)
|
||
xdraws(buf, base, ox, y, ic, ib);
|
||
}
|
||
xdrawcursor();
|
||
}
|
||
|
||
void
|
||
expose(XEvent *ev) {
|
||
XExposeEvent *e = &ev->xexpose;
|
||
|
||
if(xw.state & WIN_REDRAW) {
|
||
if(!e->count)
|
||
xw.state &= ~WIN_REDRAW;
|
||
}
|
||
}
|
||
|
||
void
|
||
visibility(XEvent *ev) {
|
||
XVisibilityEvent *e = &ev->xvisibility;
|
||
|
||
if(e->state == VisibilityFullyObscured) {
|
||
xw.state &= ~WIN_VISIBLE;
|
||
} else if(!(xw.state & WIN_VISIBLE)) {
|
||
/* need a full redraw for next Expose, not just a buf copy */
|
||
xw.state |= WIN_VISIBLE | WIN_REDRAW;
|
||
}
|
||
}
|
||
|
||
void
|
||
unmap(XEvent *ev) {
|
||
xw.state &= ~WIN_VISIBLE;
|
||
}
|
||
|
||
void
|
||
xseturgency(int add) {
|
||
XWMHints *h = XGetWMHints(xw.dpy, xw.win);
|
||
|
||
h->flags = add ? (h->flags | XUrgencyHint) : (h->flags & ~XUrgencyHint);
|
||
XSetWMHints(xw.dpy, xw.win, h);
|
||
XFree(h);
|
||
}
|
||
|
||
void
|
||
focus(XEvent *ev) {
|
||
if(ev->type == FocusIn) {
|
||
xw.state |= WIN_FOCUSED;
|
||
xseturgency(0);
|
||
} else {
|
||
xw.state &= ~WIN_FOCUSED;
|
||
}
|
||
}
|
||
|
||
char*
|
||
kmap(KeySym k, uint state) {
|
||
int i;
|
||
uint mask;
|
||
|
||
state &= ~Mod2Mask;
|
||
for(i = 0; i < LEN(key); i++) {
|
||
mask = key[i].mask;
|
||
|
||
if(key[i].k == k && ((state & mask) == mask
|
||
|| (mask == XK_NO_MOD && !state))) {
|
||
return (char*)key[i].s;
|
||
}
|
||
}
|
||
return NULL;
|
||
}
|
||
|
||
void
|
||
kpress(XEvent *ev) {
|
||
XKeyEvent *e = &ev->xkey;
|
||
KeySym ksym;
|
||
char buf[32];
|
||
char *customkey;
|
||
int len;
|
||
int meta;
|
||
int shift;
|
||
Status status;
|
||
|
||
if (IS_SET(MODE_KBDLOCK))
|
||
return;
|
||
|
||
meta = e->state & Mod1Mask;
|
||
shift = e->state & ShiftMask;
|
||
len = XmbLookupString(xw.xic, e, buf, sizeof(buf), &ksym, &status);
|
||
|
||
/* 1. custom keys from config.h */
|
||
if((customkey = kmap(ksym, e->state))) {
|
||
ttywrite(customkey, strlen(customkey));
|
||
/* 2. hardcoded (overrides X lookup) */
|
||
} else {
|
||
switch(ksym) {
|
||
case XK_Up:
|
||
case XK_Down:
|
||
case XK_Left:
|
||
case XK_Right:
|
||
/* XXX: shift up/down doesn't work */
|
||
sprintf(buf, "\033%c%c",
|
||
IS_SET(MODE_APPKEYPAD) ? 'O' : '[',
|
||
(shift ? "dacb":"DACB")[ksym - XK_Left]);
|
||
ttywrite(buf, 3);
|
||
break;
|
||
case XK_Insert:
|
||
if(shift)
|
||
selpaste();
|
||
break;
|
||
case XK_Return:
|
||
if(IS_SET(MODE_CRLF)) {
|
||
ttywrite("\r\n", 2);
|
||
} else {
|
||
ttywrite("\r", 1);
|
||
}
|
||
break;
|
||
/* 3. X lookup */
|
||
default:
|
||
if(len > 0) {
|
||
if(meta && len == 1)
|
||
ttywrite("\033", 1);
|
||
ttywrite(buf, len);
|
||
}
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
void
|
||
cmessage(XEvent *e) {
|
||
/* See xembed specs
|
||
http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html */
|
||
if(e->xclient.message_type == xw.xembed && e->xclient.format == 32) {
|
||
if(e->xclient.data.l[1] == XEMBED_FOCUS_IN) {
|
||
xw.state |= WIN_FOCUSED;
|
||
xseturgency(0);
|
||
} else if(e->xclient.data.l[1] == XEMBED_FOCUS_OUT) {
|
||
xw.state &= ~WIN_FOCUSED;
|
||
}
|
||
} else if(e->xclient.data.l[0] == xw.wmdeletewin) {
|
||
/* Send SIGHUP to shell */
|
||
kill(pid, SIGHUP);
|
||
exit(EXIT_SUCCESS);
|
||
}
|
||
}
|
||
|
||
void
|
||
resize(XEvent *e) {
|
||
int col, row;
|
||
|
||
if(e->xconfigure.width == xw.w && e->xconfigure.height == xw.h)
|
||
return;
|
||
|
||
xw.w = e->xconfigure.width;
|
||
xw.h = e->xconfigure.height;
|
||
col = (xw.w - 2*BORDER) / xw.cw;
|
||
row = (xw.h - 2*BORDER) / xw.ch;
|
||
if(col == term.col && row == term.row)
|
||
return;
|
||
|
||
tresize(col, row);
|
||
xresize(col, row);
|
||
ttyresize();
|
||
}
|
||
|
||
void
|
||
run(void) {
|
||
XEvent ev;
|
||
fd_set rfd;
|
||
int xfd = XConnectionNumber(xw.dpy), i;
|
||
struct timeval drawtimeout, *tv = NULL;
|
||
|
||
for(i = 0;; i++) {
|
||
FD_ZERO(&rfd);
|
||
FD_SET(cmdfd, &rfd);
|
||
FD_SET(xfd, &rfd);
|
||
if(select(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, tv) < 0) {
|
||
if(errno == EINTR)
|
||
continue;
|
||
die("select failed: %s\n", SERRNO);
|
||
}
|
||
|
||
/*
|
||
* Stop after a certain number of reads so the user does not
|
||
* feel like the system is stuttering.
|
||
*/
|
||
if(i < 1000 && FD_ISSET(cmdfd, &rfd)) {
|
||
ttyread();
|
||
|
||
/*
|
||
* Just wait a bit so it isn't disturbing the
|
||
* user and the system is able to write something.
|
||
*/
|
||
drawtimeout.tv_sec = 0;
|
||
drawtimeout.tv_usec = 5;
|
||
tv = &drawtimeout;
|
||
continue;
|
||
}
|
||
i = 0;
|
||
tv = NULL;
|
||
|
||
while(XPending(xw.dpy)) {
|
||
XNextEvent(xw.dpy, &ev);
|
||
if(XFilterEvent(&ev, xw.win))
|
||
continue;
|
||
if(handler[ev.type])
|
||
(handler[ev.type])(&ev);
|
||
}
|
||
|
||
draw();
|
||
XFlush(xw.dpy);
|
||
}
|
||
}
|
||
|
||
int
|
||
main(int argc, char *argv[]) {
|
||
int i, bitm, xr, yr;
|
||
uint wr, hr;
|
||
|
||
xw.fw = xw.fh = xw.fx = xw.fy = 0;
|
||
xw.isfixed = False;
|
||
|
||
for(i = 1; i < argc; i++) {
|
||
switch(argv[i][0] != '-' || argv[i][2] ? -1 : argv[i][1]) {
|
||
case 'c':
|
||
if(++i < argc)
|
||
opt_class = argv[i];
|
||
break;
|
||
case 'e':
|
||
/* eat every remaining arguments */
|
||
if(++i < argc)
|
||
opt_cmd = &argv[i];
|
||
goto run;
|
||
case 'f':
|
||
if(++i < argc)
|
||
opt_font = argv[i];
|
||
break;
|
||
case 'g':
|
||
if(++i >= argc)
|
||
break;
|
||
|
||
bitm = XParseGeometry(argv[i], &xr, &yr, &wr, &hr);
|
||
if(bitm & XValue)
|
||
xw.fx = xr;
|
||
if(bitm & YValue)
|
||
xw.fy = yr;
|
||
if(bitm & WidthValue)
|
||
xw.fw = (int)wr;
|
||
if(bitm & HeightValue)
|
||
xw.fh = (int)hr;
|
||
if(bitm & XNegative && xw.fx == 0)
|
||
xw.fx = -1;
|
||
if(bitm & XNegative && xw.fy == 0)
|
||
xw.fy = -1;
|
||
|
||
if(xw.fh != 0 && xw.fw != 0)
|
||
xw.isfixed = True;
|
||
break;
|
||
case 'o':
|
||
if(++i < argc)
|
||
opt_io = argv[i];
|
||
break;
|
||
case 't':
|
||
if(++i < argc)
|
||
opt_title = argv[i];
|
||
break;
|
||
case 'v':
|
||
default:
|
||
die(USAGE);
|
||
case 'w':
|
||
if(++i < argc)
|
||
opt_embed = argv[i];
|
||
break;
|
||
}
|
||
}
|
||
|
||
run:
|
||
setlocale(LC_CTYPE, "");
|
||
tnew(80, 24);
|
||
ttynew();
|
||
xinit();
|
||
selinit();
|
||
run();
|
||
return 0;
|
||
}
|
||
|