b6cfff1625
tsetreset() is called when it is necessary a full initialization of the terminal, so it also should clean the full X window and not only the terminal content. It is necessary change the order of the initialization in main(), and put xinit before of tnew(), because tnew() calls to tsetreset(), and this can cause a call to xreset() with incorrect values. --- st.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
2445 lines
54 KiB
C
2445 lines
54 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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#define Glyph Glyph_
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#define Font Font_
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#if defined(__linux)
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#include <pty.h>
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#elif defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__)
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#include <util.h>
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#elif defined(__FreeBSD__) || defined(__DragonFly__)
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#include <libutil.h>
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#endif
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#define USAGE \
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"st " VERSION " (c) 2010-2012 st engineers\n" \
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"usage: st [-t title] [-c class] [-g geometry]" \
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" [-w windowid] [-v] [-f file] [-e command...]\n"
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|
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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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|
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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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|
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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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|
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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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|
|
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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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|
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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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|
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enum term_mode {
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MODE_WRAP = 1,
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MODE_INSERT = 2,
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MODE_APPKEYPAD = 4,
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MODE_ALTSCREEN = 8,
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MODE_CRLF = 16,
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MODE_MOUSEBTN = 32,
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MODE_MOUSEMOTION = 64,
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MODE_MOUSE = 32|64,
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MODE_REVERSE = 128
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};
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|
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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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|
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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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|
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/* CSI Escape sequence structs */
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/* ESC '[' [[ [<priv>] <arg> [;]] <mode>] */
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typedef struct {
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char buf[ESC_BUF_SIZ]; /* raw string */
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int len; /* raw string length */
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char priv;
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int arg[ESC_ARG_SIZ];
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int narg; /* nb of args */
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char mode;
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} CSIEscape;
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/* STR Escape sequence structs */
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/* ESC type [[ [<priv>] <arg> [;]] <mode>] ESC '\' */
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typedef struct {
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char type; /* ESC type ... */
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char buf[STR_BUF_SIZ]; /* raw string */
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int len; /* raw string length */
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char *args[STR_ARG_SIZ];
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int narg; /* nb of args */
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} STREscape;
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/* Internal representation of the screen */
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typedef struct {
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int row; /* nb row */
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int col; /* nb col */
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Line* line; /* screen */
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Line* alt; /* alternate screen */
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bool* dirty; /* dirtyness of lines */
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TCursor c; /* cursor */
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int top; /* top scroll limit */
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int bot; /* bottom scroll limit */
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int mode; /* terminal mode flags */
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int esc; /* escape state flags */
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bool *tabs;
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} Term;
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|
/* Purely graphic info */
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typedef struct {
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Display* dpy;
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Colormap cmap;
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Window win;
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XdbeBackBuffer buf;
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Atom xembed;
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XIM xim;
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XIC xic;
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XftDraw *xft_draw;
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Visual *vis;
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int scr;
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bool isfixed; /* is fixed geometry? */
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int fx, fy, fw, fh; /* fixed geometry */
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int tw, th; /* tty width and height */
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int w; /* window width */
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int h; /* window height */
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int ch; /* char height */
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int cw; /* char width */
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char state; /* focus, redraw, visible */
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} XWindow;
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typedef struct {
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KeySym k;
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uint mask;
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char s[ESC_BUF_SIZ];
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} Key;
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/* TODO: use better name for vars... */
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typedef struct {
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int mode;
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int bx, by;
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int ex, ey;
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struct {int x, y;} b, e;
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char *clip;
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Atom xtarget;
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bool alt;
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struct timeval tclick1;
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struct timeval tclick2;
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} Selection;
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#include "config.h"
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/* Font structure */
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typedef struct {
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int ascent;
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int descent;
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short lbearing;
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short rbearing;
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XFontSet set;
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XftFont* xft_set;
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} Font;
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/* Drawing Context */
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typedef struct {
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ulong col[LEN(colorname) < 256 ? 256 : LEN(colorname)];
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XftColor xft_col[LEN(colorname) < 256 ? 256 : LEN(colorname)];
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GC gc;
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Font font, bfont, ifont, ibfont;
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} DC;
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static void die(const char*, ...);
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static void draw(void);
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static void redraw(void);
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static void drawregion(int, int, int, int);
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static void execsh(void);
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static void sigchld(int);
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static void run(void);
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static void csidump(void);
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static void csihandle(void);
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static void csiparse(void);
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static void csireset(void);
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static void strdump(void);
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static void strhandle(void);
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static void strparse(void);
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static void strreset(void);
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static void tclearregion(int, int, int, int);
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static void tcursor(int);
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static void tdeletechar(int);
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static void tdeleteline(int);
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static void tinsertblank(int);
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static void tinsertblankline(int);
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static void tmoveto(int, int);
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static void tnew(int, int);
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static void tnewline(int);
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static void tputtab(bool);
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static void tputc(char*);
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static void treset(void);
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static int tresize(int, int);
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static void tscrollup(int, int);
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static void tscrolldown(int, int);
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static void tsetattr(int*, int);
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static void tsetchar(char*);
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static void tsetscroll(int, int);
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static void tswapscreen(void);
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static void tsetdirt(int, int);
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static void tsetmode(bool, bool, int *, int);
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static void tfulldirt(void);
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static void ttynew(void);
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static void ttyread(void);
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static void ttyresize(int, int);
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static void ttywrite(const char *, size_t);
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static void xdraws(char *, Glyph, int, int, int, int);
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static void xhints(void);
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static void xclear(int, int, int, int);
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static void xdrawcursor(void);
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static void xinit(void);
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static void xloadcols(void);
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static void xresettitle(void);
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static void xseturgency(int);
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static void xsetsel(char*);
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static void xresize(int, int);
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static void expose(XEvent *);
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static void visibility(XEvent *);
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static void unmap(XEvent *);
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static char* kmap(KeySym, uint);
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static void kpress(XEvent *);
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static void cmessage(XEvent *);
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static void resize(XEvent *);
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static void focus(XEvent *);
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static void brelease(XEvent *);
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static void bpress(XEvent *);
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static void bmotion(XEvent *);
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static void selnotify(XEvent *);
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static void selclear(XEvent *);
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static void selrequest(XEvent *);
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static void selinit(void);
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static inline bool selected(int, int);
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static void selcopy(void);
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static void selpaste(void);
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static void selscroll(int, int);
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static int utf8decode(char *, long *);
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static int utf8encode(long *, char *);
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static int utf8size(char *);
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static int isfullutf8(char *, int);
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static void *xmalloc(size_t);
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static void *xrealloc(void *, size_t);
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static void *xcalloc(size_t nmemb, size_t size);
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static void (*handler[LASTEvent])(XEvent *) = {
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[KeyPress] = kpress,
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[ClientMessage] = cmessage,
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[ConfigureNotify] = resize,
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[VisibilityNotify] = visibility,
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[UnmapNotify] = unmap,
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[Expose] = expose,
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[FocusIn] = focus,
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[FocusOut] = focus,
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[MotionNotify] = bmotion,
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[ButtonPress] = bpress,
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[ButtonRelease] = brelease,
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[SelectionClear] = selclear,
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[SelectionNotify] = selnotify,
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[SelectionRequest] = selrequest,
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};
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|
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/* Globals */
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static DC dc;
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static XWindow xw;
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static Term term;
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static CSIEscape csiescseq;
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static STREscape strescseq;
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static int cmdfd;
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static pid_t pid;
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static Selection sel;
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static int iofd = -1;
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static char **opt_cmd = NULL;
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static char *opt_io = NULL;
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static char *opt_title = NULL;
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static char *opt_embed = NULL;
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static char *opt_class = NULL;
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void *
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xmalloc(size_t len) {
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void *p = malloc(len);
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if(!p)
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die("Out of memory\n");
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return p;
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}
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void *
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xrealloc(void *p, size_t len) {
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if((p = realloc(p, len)) == NULL)
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die("Out of memory\n");
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return p;
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}
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void *
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xcalloc(size_t nmemb, size_t size) {
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void *p = calloc(nmemb, size);
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if(!p)
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die("Out of memory\n");
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return p;
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}
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int
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utf8decode(char *s, long *u) {
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uchar c;
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int i, n, rtn;
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rtn = 1;
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c = *s;
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if(~c & B7) { /* 0xxxxxxx */
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*u = c;
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return rtn;
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} else if((c & (B7|B6|B5)) == (B7|B6)) { /* 110xxxxx */
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*u = c&(B4|B3|B2|B1|B0);
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n = 1;
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} else if((c & (B7|B6|B5|B4)) == (B7|B6|B5)) { /* 1110xxxx */
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*u = c&(B3|B2|B1|B0);
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n = 2;
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} else if((c & (B7|B6|B5|B4|B3)) == (B7|B6|B5|B4)) { /* 11110xxx */
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*u = c & (B2|B1|B0);
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n = 3;
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} else
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goto invalid;
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for(i = n, ++s; i > 0; --i, ++rtn, ++s) {
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c = *s;
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if((c & (B7|B6)) != B7) /* 10xxxxxx */
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goto invalid;
|
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*u <<= 6;
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*u |= c & (B5|B4|B3|B2|B1|B0);
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}
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if((n == 1 && *u < 0x80) ||
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(n == 2 && *u < 0x800) ||
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(n == 3 && *u < 0x10000) ||
|
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(*u >= 0xD800 && *u <= 0xDFFF))
|
|
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;
|
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uc = *u;
|
|
if(uc < 0x80) {
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|
*sp = uc; /* 0xxxxxxx */
|
|
return 1;
|
|
} else if(*u < 0x800) {
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|
*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) &&
|
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((b == 1) ||
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((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) {
|
|
if(sel.ey == y && sel.by == y) {
|
|
int bx = MIN(sel.bx, sel.ex);
|
|
int ex = MAX(sel.bx, sel.ex);
|
|
return BETWEEN(x, bx, ex);
|
|
}
|
|
return ((sel.b.y < y&&y < sel.e.y) || (y==sel.e.y && x<=sel.e.x))
|
|
|| (y==sel.b.y && x>=sel.b.x && (x<=sel.e.x || sel.b.y!=sel.e.y));
|
|
}
|
|
|
|
void
|
|
getbuttoninfo(XEvent *e, int *b, int *x, int *y) {
|
|
if(b)
|
|
*b = e->xbutton.button;
|
|
|
|
*x = X2COL(e->xbutton.x);
|
|
*y = Y2ROW(e->xbutton.y);
|
|
sel.b.x = sel.by < sel.ey ? sel.bx : sel.ex;
|
|
sel.b.y = MIN(sel.by, sel.ey);
|
|
sel.e.x = sel.by < sel.ey ? sel.ex : sel.bx;
|
|
sel.e.y = MAX(sel.by, sel.ey);
|
|
}
|
|
|
|
void
|
|
mousereport(XEvent *e) {
|
|
int x = X2COL(e->xbutton.x);
|
|
int y = Y2ROW(e->xbutton.y);
|
|
int button = e->xbutton.button;
|
|
int state = e->xbutton.state;
|
|
char buf[] = { '\033', '[', 'M', 0, 32+x+1, 32+y+1 };
|
|
static int ob, ox, oy;
|
|
|
|
/* from urxvt */
|
|
if(e->xbutton.type == MotionNotify) {
|
|
if(!IS_SET(MODE_MOUSEMOTION) || (x == ox && y == oy))
|
|
return;
|
|
button = ob + 32;
|
|
ox = x, oy = y;
|
|
} else if(e->xbutton.type == ButtonRelease || button == AnyButton) {
|
|
button = 3;
|
|
} else {
|
|
button -= Button1;
|
|
if(button >= 3)
|
|
button += 64 - 3;
|
|
if(e->xbutton.type == ButtonPress) {
|
|
ob = button;
|
|
ox = x, oy = y;
|
|
}
|
|
}
|
|
|
|
buf[3] = 32 + button + (state & ShiftMask ? 4 : 0)
|
|
+ (state & Mod4Mask ? 8 : 0)
|
|
+ (state & ControlMask ? 16 : 0);
|
|
|
|
ttywrite(buf, sizeof(buf));
|
|
}
|
|
|
|
void
|
|
bpress(XEvent *e) {
|
|
if(IS_SET(MODE_MOUSE))
|
|
mousereport(e);
|
|
else if(e->xbutton.button == Button1) {
|
|
if(sel.bx != -1) {
|
|
sel.bx = -1;
|
|
tsetdirt(sel.b.y, sel.e.y);
|
|
draw();
|
|
}
|
|
sel.mode = 1;
|
|
sel.ex = sel.bx = X2COL(e->xbutton.x);
|
|
sel.ey = sel.by = Y2ROW(e->xbutton.y);
|
|
}
|
|
}
|
|
|
|
void
|
|
selcopy(void) {
|
|
char *str, *ptr;
|
|
int x, y, bufsize, is_selected = 0;
|
|
|
|
if(sel.bx == -1)
|
|
str = NULL;
|
|
|
|
else {
|
|
bufsize = (term.col+1) * (sel.e.y-sel.b.y+1) * UTF_SIZ;
|
|
ptr = str = xmalloc(bufsize);
|
|
|
|
/* append every set & selected glyph to the selection */
|
|
for(y = 0; y < term.row; y++) {
|
|
for(x = 0; x < term.col; x++) {
|
|
int size;
|
|
char *p;
|
|
Glyph *gp = &term.line[y][x];
|
|
|
|
if(!(is_selected = selected(x, y)))
|
|
continue;
|
|
p = (gp->state & GLYPH_SET) ? gp->c : " ";
|
|
size = utf8size(p);
|
|
memcpy(ptr, p, size);
|
|
ptr += size;
|
|
}
|
|
/* \n at the end of every selected line except for the last one */
|
|
if(is_selected && y < sel.e.y)
|
|
*ptr++ = '\n';
|
|
}
|
|
*ptr = 0;
|
|
}
|
|
sel.alt = IS_SET(MODE_ALTSCREEN);
|
|
xsetsel(str);
|
|
}
|
|
|
|
void
|
|
selnotify(XEvent *e) {
|
|
ulong nitems, ofs, rem;
|
|
int format;
|
|
uchar *data;
|
|
Atom type;
|
|
|
|
ofs = 0;
|
|
do {
|
|
if(XGetWindowProperty(xw.dpy, xw.win, XA_PRIMARY, ofs, BUFSIZ/4,
|
|
False, AnyPropertyType, &type, &format,
|
|
&nitems, &rem, &data)) {
|
|
fprintf(stderr, "Clipboard allocation failed\n");
|
|
return;
|
|
}
|
|
ttywrite((const char *) data, nitems * format / 8);
|
|
XFree(data);
|
|
/* number of 32-bit chunks returned */
|
|
ofs += nitems * format / 32;
|
|
} while(rem > 0);
|
|
}
|
|
|
|
void
|
|
selpaste() {
|
|
XConvertSelection(xw.dpy, XA_PRIMARY, sel.xtarget, XA_PRIMARY, xw.win, CurrentTime);
|
|
}
|
|
|
|
void selclear(XEvent *e) {
|
|
if(sel.bx == -1)
|
|
return;
|
|
sel.bx = -1;
|
|
tsetdirt(sel.b.y, sel.e.y);
|
|
}
|
|
|
|
void
|
|
selrequest(XEvent *e) {
|
|
XSelectionRequestEvent *xsre;
|
|
XSelectionEvent xev;
|
|
Atom xa_targets;
|
|
|
|
xsre = (XSelectionRequestEvent *) e;
|
|
xev.type = SelectionNotify;
|
|
xev.requestor = xsre->requestor;
|
|
xev.selection = xsre->selection;
|
|
xev.target = xsre->target;
|
|
xev.time = xsre->time;
|
|
/* reject */
|
|
xev.property = None;
|
|
|
|
xa_targets = XInternAtom(xw.dpy, "TARGETS", 0);
|
|
if(xsre->target == xa_targets) {
|
|
/* respond with the supported type */
|
|
Atom string = sel.xtarget;
|
|
XChangeProperty(xsre->display, xsre->requestor, xsre->property,
|
|
XA_ATOM, 32, PropModeReplace,
|
|
(uchar *) &string, 1);
|
|
xev.property = xsre->property;
|
|
} else if(xsre->target == sel.xtarget && sel.clip != NULL) {
|
|
XChangeProperty(xsre->display, xsre->requestor, xsre->property,
|
|
xsre->target, 8, PropModeReplace,
|
|
(uchar *) sel.clip, strlen(sel.clip));
|
|
xev.property = xsre->property;
|
|
}
|
|
|
|
/* all done, send a notification to the listener */
|
|
if(!XSendEvent(xsre->display, xsre->requestor, True, 0, (XEvent *) &xev))
|
|
fprintf(stderr, "Error sending SelectionNotify event\n");
|
|
}
|
|
|
|
void
|
|
xsetsel(char *str) {
|
|
/* register the selection for both the clipboard and the primary */
|
|
Atom clipboard;
|
|
|
|
free(sel.clip);
|
|
sel.clip = str;
|
|
|
|
XSetSelectionOwner(xw.dpy, XA_PRIMARY, xw.win, CurrentTime);
|
|
|
|
clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
|
|
XSetSelectionOwner(xw.dpy, clipboard, xw.win, CurrentTime);
|
|
}
|
|
|
|
void
|
|
brelease(XEvent *e) {
|
|
if(IS_SET(MODE_MOUSE)) {
|
|
mousereport(e);
|
|
return;
|
|
}
|
|
if(e->xbutton.button == Button2)
|
|
selpaste();
|
|
else if(e->xbutton.button == Button1) {
|
|
sel.mode = 0;
|
|
getbuttoninfo(e, NULL, &sel.ex, &sel.ey);
|
|
term.dirty[sel.ey] = 1;
|
|
if(sel.bx == sel.ex && sel.by == sel.ey) {
|
|
struct timeval now;
|
|
sel.bx = -1;
|
|
gettimeofday(&now, NULL);
|
|
|
|
if(TIMEDIFF(now, sel.tclick2) <= TRIPLECLICK_TIMEOUT) {
|
|
/* triple click on the line */
|
|
sel.b.x = sel.bx = 0;
|
|
sel.e.x = sel.ex = term.col;
|
|
sel.b.y = sel.e.y = sel.ey;
|
|
selcopy();
|
|
} else if(TIMEDIFF(now, sel.tclick1) <= DOUBLECLICK_TIMEOUT) {
|
|
/* double click to select word */
|
|
sel.bx = sel.ex;
|
|
while(sel.bx > 0 && term.line[sel.ey][sel.bx-1].state & GLYPH_SET &&
|
|
term.line[sel.ey][sel.bx-1].c[0] != ' ') sel.bx--;
|
|
sel.b.x = sel.bx;
|
|
while(sel.ex < term.col-1 && term.line[sel.ey][sel.ex+1].state & GLYPH_SET &&
|
|
term.line[sel.ey][sel.ex+1].c[0] != ' ') sel.ex++;
|
|
sel.e.x = sel.ex;
|
|
sel.b.y = sel.e.y = sel.ey;
|
|
selcopy();
|
|
}
|
|
} else
|
|
selcopy();
|
|
}
|
|
memcpy(&sel.tclick2, &sel.tclick1, sizeof(struct timeval));
|
|
gettimeofday(&sel.tclick1, NULL);
|
|
}
|
|
|
|
void
|
|
bmotion(XEvent *e) {
|
|
if(IS_SET(MODE_MOUSE)) {
|
|
mousereport(e);
|
|
return;
|
|
}
|
|
if(sel.mode) {
|
|
int oldey = sel.ey, oldex = sel.ex;
|
|
getbuttoninfo(e, NULL, &sel.ex, &sel.ey);
|
|
|
|
if(oldey != sel.ey || oldex != sel.ex) {
|
|
int starty = MIN(oldey, sel.ey);
|
|
int endy = MAX(oldey, sel.ey);
|
|
tsetdirt(starty, endy);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
die(const char *errstr, ...) {
|
|
va_list ap;
|
|
|
|
va_start(ap, errstr);
|
|
vfprintf(stderr, errstr, ap);
|
|
va_end(ap);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
void
|
|
execsh(void) {
|
|
char **args;
|
|
char *envshell = getenv("SHELL");
|
|
|
|
unsetenv("COLUMNS");
|
|
unsetenv("LINES");
|
|
unsetenv("TERMCAP");
|
|
|
|
signal(SIGCHLD, SIG_DFL);
|
|
signal(SIGHUP, SIG_DFL);
|
|
signal(SIGINT, SIG_DFL);
|
|
signal(SIGQUIT, SIG_DFL);
|
|
signal(SIGTERM, SIG_DFL);
|
|
signal(SIGALRM, SIG_DFL);
|
|
|
|
DEFAULT(envshell, SHELL);
|
|
putenv("TERM="TNAME);
|
|
args = opt_cmd ? opt_cmd : (char*[]){envshell, "-i", NULL};
|
|
execvp(args[0], args);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
void
|
|
sigchld(int a) {
|
|
int stat = 0;
|
|
if(waitpid(pid, &stat, 0) < 0)
|
|
die("Waiting for pid %hd failed: %s\n", pid, SERRNO);
|
|
if(WIFEXITED(stat))
|
|
exit(WEXITSTATUS(stat));
|
|
else
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
void
|
|
ttynew(void) {
|
|
int m, s;
|
|
|
|
/* seems to work fine on linux, openbsd and freebsd */
|
|
struct winsize w = {term.row, term.col, 0, 0};
|
|
if(openpty(&m, &s, NULL, NULL, &w) < 0)
|
|
die("openpty failed: %s\n", SERRNO);
|
|
|
|
switch(pid = fork()) {
|
|
case -1:
|
|
die("fork failed\n");
|
|
break;
|
|
case 0:
|
|
setsid(); /* create a new process group */
|
|
dup2(s, STDIN_FILENO);
|
|
dup2(s, STDOUT_FILENO);
|
|
dup2(s, STDERR_FILENO);
|
|
if(ioctl(s, TIOCSCTTY, NULL) < 0)
|
|
die("ioctl TIOCSCTTY failed: %s\n", SERRNO);
|
|
close(s);
|
|
close(m);
|
|
execsh();
|
|
break;
|
|
default:
|
|
close(s);
|
|
cmdfd = m;
|
|
signal(SIGCHLD, sigchld);
|
|
if(opt_io) {
|
|
if(!strcmp(opt_io, "-")) {
|
|
iofd = STDOUT_FILENO;
|
|
} else {
|
|
if((iofd = open(opt_io, O_WRONLY | O_CREAT, 0666)) < 0) {
|
|
fprintf(stderr, "Error opening %s:%s\n",
|
|
opt_io, strerror(errno));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
dump(char c) {
|
|
static int col;
|
|
fprintf(stderr, " %02x '%c' ", c, isprint(c)?c:'.');
|
|
if(++col % 10 == 0)
|
|
fprintf(stderr, "\n");
|
|
}
|
|
|
|
void
|
|
ttyread(void) {
|
|
static char buf[BUFSIZ];
|
|
static int buflen = 0;
|
|
char *ptr;
|
|
char s[UTF_SIZ];
|
|
int charsize; /* size of utf8 char in bytes */
|
|
long utf8c;
|
|
int ret;
|
|
|
|
/* append read bytes to unprocessed bytes */
|
|
if((ret = read(cmdfd, buf+buflen, LEN(buf)-buflen)) < 0)
|
|
die("Couldn't read from shell: %s\n", SERRNO);
|
|
|
|
/* process every complete utf8 char */
|
|
buflen += ret;
|
|
ptr = buf;
|
|
while(buflen >= UTF_SIZ || isfullutf8(ptr,buflen)) {
|
|
charsize = utf8decode(ptr, &utf8c);
|
|
utf8encode(&utf8c, s);
|
|
tputc(s);
|
|
ptr += charsize;
|
|
buflen -= charsize;
|
|
}
|
|
|
|
/* keep any uncomplete utf8 char for the next call */
|
|
memmove(buf, ptr, buflen);
|
|
}
|
|
|
|
void
|
|
ttywrite(const char *s, size_t n) {
|
|
if(write(cmdfd, s, n) == -1)
|
|
die("write error on tty: %s\n", SERRNO);
|
|
}
|
|
|
|
void
|
|
ttyresize(int x, int y) {
|
|
struct winsize w;
|
|
|
|
w.ws_row = term.row;
|
|
w.ws_col = term.col;
|
|
w.ws_xpixel = xw.tw;
|
|
w.ws_ypixel = xw.th;
|
|
if(ioctl(cmdfd, TIOCSWINSZ, &w) < 0)
|
|
fprintf(stderr, "Couldn't set window size: %s\n", SERRNO);
|
|
}
|
|
|
|
void
|
|
tsetdirt(int top, int bot)
|
|
{
|
|
int i;
|
|
|
|
LIMIT(top, 0, term.row-1);
|
|
LIMIT(bot, 0, term.row-1);
|
|
|
|
for(i = top; i <= bot; i++)
|
|
term.dirty[i] = 1;
|
|
}
|
|
|
|
void
|
|
tfulldirt(void)
|
|
{
|
|
tsetdirt(0, term.row-1);
|
|
}
|
|
|
|
void
|
|
tcursor(int mode) {
|
|
static TCursor c;
|
|
|
|
if(mode == CURSOR_SAVE)
|
|
c = term.c;
|
|
else if(mode == CURSOR_LOAD)
|
|
term.c = c, tmoveto(c.x, c.y);
|
|
}
|
|
|
|
void
|
|
treset(void) {
|
|
uint i;
|
|
term.c = (TCursor){{
|
|
.mode = ATTR_NULL,
|
|
.fg = DefaultFG,
|
|
.bg = DefaultBG
|
|
}, .x = 0, .y = 0, .state = CURSOR_DEFAULT};
|
|
|
|
memset(term.tabs, 0, term.col * sizeof(*term.tabs));
|
|
for(i = TAB; i < term.col; i += TAB)
|
|
term.tabs[i] = 1;
|
|
term.top = 0, term.bot = term.row - 1;
|
|
term.mode = MODE_WRAP;
|
|
xclear(0, 0, xw.w, xw.h);
|
|
tclearregion(0, 0, term.col-1, term.row-1);
|
|
}
|
|
|
|
void
|
|
tnew(int col, int row) {
|
|
/* set screen size */
|
|
term.row = row, term.col = col;
|
|
term.line = xmalloc(term.row * sizeof(Line));
|
|
term.alt = xmalloc(term.row * sizeof(Line));
|
|
term.dirty = xmalloc(term.row * sizeof(*term.dirty));
|
|
term.tabs = xmalloc(term.col * sizeof(*term.tabs));
|
|
|
|
for(row = 0; row < term.row; row++) {
|
|
term.line[row] = xmalloc(term.col * sizeof(Glyph));
|
|
term.alt [row] = xmalloc(term.col * sizeof(Glyph));
|
|
term.dirty[row] = 0;
|
|
}
|
|
memset(term.tabs, 0, term.col * sizeof(*term.tabs));
|
|
/* setup screen */
|
|
treset();
|
|
}
|
|
|
|
void
|
|
tswapscreen(void) {
|
|
Line* tmp = term.line;
|
|
term.line = term.alt;
|
|
term.alt = tmp;
|
|
term.mode ^= MODE_ALTSCREEN;
|
|
tfulldirt();
|
|
}
|
|
|
|
void
|
|
tscrolldown(int orig, int n) {
|
|
int i;
|
|
Line temp;
|
|
|
|
LIMIT(n, 0, term.bot-orig+1);
|
|
|
|
tclearregion(0, term.bot-n+1, term.col-1, term.bot);
|
|
|
|
for(i = term.bot; i >= orig+n; i--) {
|
|
temp = term.line[i];
|
|
term.line[i] = term.line[i-n];
|
|
term.line[i-n] = temp;
|
|
|
|
term.dirty[i] = 1;
|
|
term.dirty[i-n] = 1;
|
|
}
|
|
|
|
selscroll(orig, n);
|
|
}
|
|
|
|
void
|
|
tscrollup(int orig, int n) {
|
|
int i;
|
|
Line temp;
|
|
LIMIT(n, 0, term.bot-orig+1);
|
|
|
|
tclearregion(0, orig, term.col-1, orig+n-1);
|
|
|
|
for(i = orig; i <= term.bot-n; i++) {
|
|
temp = term.line[i];
|
|
term.line[i] = term.line[i+n];
|
|
term.line[i+n] = temp;
|
|
|
|
term.dirty[i] = 1;
|
|
term.dirty[i+n] = 1;
|
|
}
|
|
|
|
selscroll(orig, -n);
|
|
}
|
|
|
|
void
|
|
selscroll(int orig, int n) {
|
|
if(sel.bx == -1)
|
|
return;
|
|
|
|
if(BETWEEN(sel.by, orig, term.bot) || BETWEEN(sel.ey, orig, term.bot)) {
|
|
if((sel.by += n) > term.bot || (sel.ey += n) < term.top) {
|
|
sel.bx = -1;
|
|
return;
|
|
}
|
|
if(sel.by < term.top) {
|
|
sel.by = term.top;
|
|
sel.bx = 0;
|
|
}
|
|
if(sel.ey > term.bot) {
|
|
sel.ey = term.bot;
|
|
sel.ex = term.col;
|
|
}
|
|
sel.b.y = sel.by, sel.b.x = sel.bx;
|
|
sel.e.y = sel.ey, sel.e.x = sel.ex;
|
|
}
|
|
}
|
|
|
|
void
|
|
tnewline(int first_col) {
|
|
int y = term.c.y;
|
|
if(y == term.bot)
|
|
tscrollup(term.top, 1);
|
|
else
|
|
y++;
|
|
tmoveto(first_col ? 0 : term.c.x, y);
|
|
}
|
|
|
|
void
|
|
csiparse(void) {
|
|
/* int noarg = 1; */
|
|
char *p = csiescseq.buf;
|
|
|
|
csiescseq.narg = 0;
|
|
if(*p == '?')
|
|
csiescseq.priv = 1, p++;
|
|
|
|
while(p < csiescseq.buf+csiescseq.len) {
|
|
while(isdigit(*p)) {
|
|
csiescseq.arg[csiescseq.narg] *= 10;
|
|
csiescseq.arg[csiescseq.narg] += *p++ - '0'/*, noarg = 0 */;
|
|
}
|
|
if(*p == ';' && csiescseq.narg+1 < ESC_ARG_SIZ)
|
|
csiescseq.narg++, p++;
|
|
else {
|
|
csiescseq.mode = *p;
|
|
csiescseq.narg++;
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
tmoveto(int x, int y) {
|
|
LIMIT(x, 0, term.col-1);
|
|
LIMIT(y, 0, term.row-1);
|
|
term.c.state &= ~CURSOR_WRAPNEXT;
|
|
term.c.x = x;
|
|
term.c.y = y;
|
|
}
|
|
|
|
void
|
|
tsetchar(char *c) {
|
|
term.dirty[term.c.y] = 1;
|
|
term.line[term.c.y][term.c.x] = term.c.attr;
|
|
memcpy(term.line[term.c.y][term.c.x].c, c, UTF_SIZ);
|
|
term.line[term.c.y][term.c.x].state |= GLYPH_SET;
|
|
}
|
|
|
|
void
|
|
tclearregion(int x1, int y1, int x2, int y2) {
|
|
int x, y, temp;
|
|
|
|
if(x1 > x2)
|
|
temp = x1, x1 = x2, x2 = temp;
|
|
if(y1 > y2)
|
|
temp = y1, y1 = y2, y2 = temp;
|
|
|
|
LIMIT(x1, 0, term.col-1);
|
|
LIMIT(x2, 0, term.col-1);
|
|
LIMIT(y1, 0, term.row-1);
|
|
LIMIT(y2, 0, term.row-1);
|
|
|
|
for(y = y1; y <= y2; y++) {
|
|
term.dirty[y] = 1;
|
|
for(x = x1; x <= x2; x++)
|
|
term.line[y][x].state = 0;
|
|
}
|
|
}
|
|
|
|
void
|
|
tdeletechar(int n) {
|
|
int src = term.c.x + n;
|
|
int dst = term.c.x;
|
|
int size = term.col - src;
|
|
|
|
term.dirty[term.c.y] = 1;
|
|
|
|
if(src >= term.col) {
|
|
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
|
|
return;
|
|
}
|
|
memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src], size * sizeof(Glyph));
|
|
tclearregion(term.col-n, term.c.y, term.col-1, term.c.y);
|
|
}
|
|
|
|
void
|
|
tinsertblank(int n) {
|
|
int src = term.c.x;
|
|
int dst = src + n;
|
|
int size = term.col - dst;
|
|
|
|
term.dirty[term.c.y] = 1;
|
|
|
|
if(dst >= term.col) {
|
|
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
|
|
return;
|
|
}
|
|
memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src], size * sizeof(Glyph));
|
|
tclearregion(src, term.c.y, dst - 1, term.c.y);
|
|
}
|
|
|
|
void
|
|
tinsertblankline(int n) {
|
|
if(term.c.y < term.top || term.c.y > term.bot)
|
|
return;
|
|
|
|
tscrolldown(term.c.y, n);
|
|
}
|
|
|
|
void
|
|
tdeleteline(int n) {
|
|
if(term.c.y < term.top || term.c.y > term.bot)
|
|
return;
|
|
|
|
tscrollup(term.c.y, n);
|
|
}
|
|
|
|
void
|
|
tsetattr(int *attr, int l) {
|
|
int i;
|
|
|
|
for(i = 0; i < l; i++) {
|
|
switch(attr[i]) {
|
|
case 0:
|
|
term.c.attr.mode &= ~(ATTR_REVERSE | ATTR_UNDERLINE | ATTR_BOLD \
|
|
| ATTR_ITALIC | ATTR_BLINK);
|
|
term.c.attr.fg = DefaultFG;
|
|
term.c.attr.bg = DefaultBG;
|
|
break;
|
|
case 1:
|
|
term.c.attr.mode |= ATTR_BOLD;
|
|
break;
|
|
case 3: /* enter standout (highlight) */
|
|
term.c.attr.mode |= ATTR_ITALIC;
|
|
break;
|
|
case 4:
|
|
term.c.attr.mode |= ATTR_UNDERLINE;
|
|
break;
|
|
case 5:
|
|
term.c.attr.mode |= ATTR_BLINK;
|
|
break;
|
|
case 7:
|
|
term.c.attr.mode |= ATTR_REVERSE;
|
|
break;
|
|
case 21:
|
|
case 22:
|
|
term.c.attr.mode &= ~ATTR_BOLD;
|
|
break;
|
|
case 23: /* leave standout (highlight) mode */
|
|
term.c.attr.mode &= ~ATTR_ITALIC;
|
|
break;
|
|
case 24:
|
|
term.c.attr.mode &= ~ATTR_UNDERLINE;
|
|
break;
|
|
case 25:
|
|
term.c.attr.mode &= ~ATTR_BLINK;
|
|
break;
|
|
case 27:
|
|
term.c.attr.mode &= ~ATTR_REVERSE;
|
|
break;
|
|
case 38:
|
|
if(i + 2 < l && attr[i + 1] == 5) {
|
|
i += 2;
|
|
if(BETWEEN(attr[i], 0, 255))
|
|
term.c.attr.fg = attr[i];
|
|
else
|
|
fprintf(stderr, "erresc: bad fgcolor %d\n", attr[i]);
|
|
}
|
|
else
|
|
fprintf(stderr, "erresc(38): gfx attr %d unknown\n", attr[i]);
|
|
break;
|
|
case 39:
|
|
term.c.attr.fg = DefaultFG;
|
|
break;
|
|
case 48:
|
|
if(i + 2 < l && attr[i + 1] == 5) {
|
|
i += 2;
|
|
if(BETWEEN(attr[i], 0, 255))
|
|
term.c.attr.bg = attr[i];
|
|
else
|
|
fprintf(stderr, "erresc: bad bgcolor %d\n", attr[i]);
|
|
}
|
|
else
|
|
fprintf(stderr, "erresc(48): gfx attr %d unknown\n", attr[i]);
|
|
break;
|
|
case 49:
|
|
term.c.attr.bg = DefaultBG;
|
|
break;
|
|
default:
|
|
if(BETWEEN(attr[i], 30, 37))
|
|
term.c.attr.fg = attr[i] - 30;
|
|
else if(BETWEEN(attr[i], 40, 47))
|
|
term.c.attr.bg = attr[i] - 40;
|
|
else if(BETWEEN(attr[i], 90, 97))
|
|
term.c.attr.fg = attr[i] - 90 + 8;
|
|
else if(BETWEEN(attr[i], 100, 107))
|
|
term.c.attr.bg = attr[i] - 100 + 8;
|
|
else
|
|
fprintf(stderr, "erresc(default): gfx attr %d unknown\n", attr[i]), csidump();
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
tsetscroll(int t, int b) {
|
|
int temp;
|
|
|
|
LIMIT(t, 0, term.row-1);
|
|
LIMIT(b, 0, term.row-1);
|
|
if(t > b) {
|
|
temp = t;
|
|
t = b;
|
|
b = temp;
|
|
}
|
|
term.top = t;
|
|
term.bot = b;
|
|
}
|
|
|
|
#define MODBIT(x, set, bit) ((set) ? ((x) |= (bit)) : ((x) &= ~(bit)))
|
|
|
|
void
|
|
tsetmode(bool priv, bool set, int *args, int narg) {
|
|
int *lim, mode;
|
|
|
|
for(lim = args + narg; args < lim; ++args) {
|
|
if(priv) {
|
|
switch(*args) {
|
|
case 1:
|
|
MODBIT(term.mode, set, MODE_APPKEYPAD);
|
|
break;
|
|
case 5: /* DECSCNM -- Reverve video */
|
|
mode = term.mode;
|
|
MODBIT(term.mode,set, MODE_REVERSE);
|
|
if(mode != term.mode)
|
|
redraw();
|
|
break;
|
|
case 7:
|
|
MODBIT(term.mode, set, MODE_WRAP);
|
|
break;
|
|
case 20:
|
|
MODBIT(term.mode, set, MODE_CRLF);
|
|
break;
|
|
case 12: /* att610 -- Start blinking cursor (IGNORED) */
|
|
break;
|
|
case 25:
|
|
MODBIT(term.c.state, !set, CURSOR_HIDE);
|
|
break;
|
|
case 1000: /* 1000,1002: enable xterm mouse report */
|
|
MODBIT(term.mode, set, MODE_MOUSEBTN);
|
|
break;
|
|
case 1002:
|
|
MODBIT(term.mode, set, MODE_MOUSEMOTION);
|
|
break;
|
|
case 1049: /* = 1047 and 1048 */
|
|
case 47:
|
|
case 1047:
|
|
if(IS_SET(MODE_ALTSCREEN))
|
|
tclearregion(0, 0, term.col-1, term.row-1);
|
|
if((set && !IS_SET(MODE_ALTSCREEN)) ||
|
|
(!set && IS_SET(MODE_ALTSCREEN))) {
|
|
tswapscreen();
|
|
}
|
|
if(*args != 1049)
|
|
break;
|
|
/* pass through */
|
|
case 1048:
|
|
tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
|
|
break;
|
|
default:
|
|
fprintf(stderr,
|
|
"erresc: unknown private set/reset mode %d\n",
|
|
*args);
|
|
break;
|
|
}
|
|
} else {
|
|
switch(*args) {
|
|
case 4:
|
|
MODBIT(term.mode, set, MODE_INSERT);
|
|
break;
|
|
default:
|
|
fprintf(stderr,
|
|
"erresc: unknown set/reset mode %d\n",
|
|
*args);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
#undef MODBIT
|
|
|
|
|
|
void
|
|
csihandle(void) {
|
|
switch(csiescseq.mode) {
|
|
default:
|
|
unknown:
|
|
fprintf(stderr, "erresc: unknown csi ");
|
|
csidump();
|
|
/* die(""); */
|
|
break;
|
|
case '@': /* ICH -- Insert <n> blank char */
|
|
DEFAULT(csiescseq.arg[0], 1);
|
|
tinsertblank(csiescseq.arg[0]);
|
|
break;
|
|
case 'A': /* CUU -- Cursor <n> Up */
|
|
case 'e':
|
|
DEFAULT(csiescseq.arg[0], 1);
|
|
tmoveto(term.c.x, term.c.y-csiescseq.arg[0]);
|
|
break;
|
|
case 'B': /* CUD -- Cursor <n> Down */
|
|
DEFAULT(csiescseq.arg[0], 1);
|
|
tmoveto(term.c.x, term.c.y+csiescseq.arg[0]);
|
|
break;
|
|
case 'C': /* CUF -- Cursor <n> Forward */
|
|
case 'a':
|
|
DEFAULT(csiescseq.arg[0], 1);
|
|
tmoveto(term.c.x+csiescseq.arg[0], term.c.y);
|
|
break;
|
|
case 'D': /* CUB -- Cursor <n> Backward */
|
|
DEFAULT(csiescseq.arg[0], 1);
|
|
tmoveto(term.c.x-csiescseq.arg[0], term.c.y);
|
|
break;
|
|
case 'E': /* CNL -- Cursor <n> Down and first col */
|
|
DEFAULT(csiescseq.arg[0], 1);
|
|
tmoveto(0, term.c.y+csiescseq.arg[0]);
|
|
break;
|
|
case 'F': /* CPL -- Cursor <n> Up and first col */
|
|
DEFAULT(csiescseq.arg[0], 1);
|
|
tmoveto(0, term.c.y-csiescseq.arg[0]);
|
|
break;
|
|
case 'g': /* TBC -- Tabulation clear */
|
|
switch (csiescseq.arg[0]) {
|
|
case 0: /* clear current tab stop */
|
|
term.tabs[term.c.x] = 0;
|
|
break;
|
|
case 3: /* clear all the tabs */
|
|
memset(term.tabs, 0, term.col * sizeof(*term.tabs));
|
|
break;
|
|
default:
|
|
goto unknown;
|
|
}
|
|
break;
|
|
case 'G': /* CHA -- Move to <col> */
|
|
case '`': /* HPA */
|
|
DEFAULT(csiescseq.arg[0], 1);
|
|
tmoveto(csiescseq.arg[0]-1, term.c.y);
|
|
break;
|
|
case 'H': /* CUP -- Move to <row> <col> */
|
|
case 'f': /* HVP */
|
|
DEFAULT(csiescseq.arg[0], 1);
|
|
DEFAULT(csiescseq.arg[1], 1);
|
|
tmoveto(csiescseq.arg[1]-1, csiescseq.arg[0]-1);
|
|
break;
|
|
case 'I': /* CHT -- Cursor Forward Tabulation <n> tab stops */
|
|
DEFAULT(csiescseq.arg[0], 1);
|
|
while(csiescseq.arg[0]--)
|
|
tputtab(1);
|
|
break;
|
|
case 'J': /* ED -- Clear screen */
|
|
sel.bx = -1;
|
|
switch(csiescseq.arg[0]) {
|
|
case 0: /* below */
|
|
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
|
|
if(term.c.y < term.row-1)
|
|
tclearregion(0, term.c.y+1, term.col-1, term.row-1);
|
|
break;
|
|
case 1: /* above */
|
|
if(term.c.y > 1)
|
|
tclearregion(0, 0, term.col-1, term.c.y-1);
|
|
tclearregion(0, term.c.y, term.c.x, term.c.y);
|
|
break;
|
|
case 2: /* all */
|
|
tclearregion(0, 0, term.col-1, term.row-1);
|
|
break;
|
|
default:
|
|
goto unknown;
|
|
}
|
|
break;
|
|
case 'K': /* EL -- Clear line */
|
|
switch(csiescseq.arg[0]) {
|
|
case 0: /* right */
|
|
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
|
|
break;
|
|
case 1: /* left */
|
|
tclearregion(0, term.c.y, term.c.x, term.c.y);
|
|
break;
|
|
case 2: /* all */
|
|
tclearregion(0, term.c.y, term.col-1, term.c.y);
|
|
break;
|
|
}
|
|
break;
|
|
case 'S': /* SU -- Scroll <n> line up */
|
|
DEFAULT(csiescseq.arg[0], 1);
|
|
tscrollup(term.top, csiescseq.arg[0]);
|
|
break;
|
|
case 'T': /* SD -- Scroll <n> line down */
|
|
DEFAULT(csiescseq.arg[0], 1);
|
|
tscrolldown(term.top, csiescseq.arg[0]);
|
|
break;
|
|
case 'L': /* IL -- Insert <n> blank lines */
|
|
DEFAULT(csiescseq.arg[0], 1);
|
|
tinsertblankline(csiescseq.arg[0]);
|
|
break;
|
|
case 'l': /* RM -- Reset Mode */
|
|
tsetmode(csiescseq.priv, 0, csiescseq.arg, csiescseq.narg);
|
|
break;
|
|
case 'M': /* DL -- Delete <n> lines */
|
|
DEFAULT(csiescseq.arg[0], 1);
|
|
tdeleteline(csiescseq.arg[0]);
|
|
break;
|
|
case 'X': /* ECH -- Erase <n> char */
|
|
DEFAULT(csiescseq.arg[0], 1);
|
|
tclearregion(term.c.x, term.c.y, term.c.x + csiescseq.arg[0], term.c.y);
|
|
break;
|
|
case 'P': /* DCH -- Delete <n> char */
|
|
DEFAULT(csiescseq.arg[0], 1);
|
|
tdeletechar(csiescseq.arg[0]);
|
|
break;
|
|
case 'Z': /* CBT -- Cursor Backward Tabulation <n> tab stops */
|
|
DEFAULT(csiescseq.arg[0], 1);
|
|
while(csiescseq.arg[0]--)
|
|
tputtab(0);
|
|
break;
|
|
case 'd': /* VPA -- Move to <row> */
|
|
DEFAULT(csiescseq.arg[0], 1);
|
|
tmoveto(term.c.x, csiescseq.arg[0]-1);
|
|
break;
|
|
case 'h': /* SM -- Set terminal mode */
|
|
tsetmode(csiescseq.priv, 1, csiescseq.arg, csiescseq.narg);
|
|
break;
|
|
case 'm': /* SGR -- Terminal attribute (color) */
|
|
tsetattr(csiescseq.arg, csiescseq.narg);
|
|
break;
|
|
case 'r': /* DECSTBM -- Set Scrolling Region */
|
|
if(csiescseq.priv)
|
|
goto unknown;
|
|
else {
|
|
DEFAULT(csiescseq.arg[0], 1);
|
|
DEFAULT(csiescseq.arg[1], term.row);
|
|
tsetscroll(csiescseq.arg[0]-1, csiescseq.arg[1]-1);
|
|
tmoveto(0, 0);
|
|
}
|
|
break;
|
|
case 's': /* DECSC -- Save cursor position (ANSI.SYS) */
|
|
tcursor(CURSOR_SAVE);
|
|
break;
|
|
case 'u': /* DECRC -- Restore cursor position (ANSI.SYS) */
|
|
tcursor(CURSOR_LOAD);
|
|
break;
|
|
}
|
|
}
|
|
|
|
void
|
|
csidump(void) {
|
|
int i;
|
|
printf("ESC[");
|
|
for(i = 0; i < csiescseq.len; i++) {
|
|
uint c = csiescseq.buf[i] & 0xff;
|
|
if(isprint(c)) putchar(c);
|
|
else if(c == '\n') printf("(\\n)");
|
|
else if(c == '\r') printf("(\\r)");
|
|
else if(c == 0x1b) printf("(\\e)");
|
|
else printf("(%02x)", c);
|
|
}
|
|
putchar('\n');
|
|
}
|
|
|
|
void
|
|
csireset(void) {
|
|
memset(&csiescseq, 0, sizeof(csiescseq));
|
|
}
|
|
|
|
void
|
|
strhandle(void) {
|
|
char *p;
|
|
|
|
/*
|
|
* TODO: make this being useful in case of color palette change.
|
|
*/
|
|
strparse();
|
|
|
|
p = strescseq.buf;
|
|
|
|
switch(strescseq.type) {
|
|
case ']': /* OSC -- Operating System Command */
|
|
switch(p[0]) {
|
|
case '0':
|
|
case '1':
|
|
case '2':
|
|
/*
|
|
* TODO: Handle special chars in string, like umlauts.
|
|
*/
|
|
if(p[1] == ';') {
|
|
XStoreName(xw.dpy, xw.win, strescseq.buf+2);
|
|
}
|
|
break;
|
|
case ';':
|
|
XStoreName(xw.dpy, xw.win, strescseq.buf+1);
|
|
break;
|
|
case '4': /* TODO: Set color (arg0) to "rgb:%hexr/$hexg/$hexb" (arg1) */
|
|
break;
|
|
default:
|
|
fprintf(stderr, "erresc: unknown str ");
|
|
strdump();
|
|
break;
|
|
}
|
|
break;
|
|
case 'k': /* old title set compatibility */
|
|
XStoreName(xw.dpy, xw.win, strescseq.buf);
|
|
break;
|
|
case 'P': /* DSC -- Device Control String */
|
|
case '_': /* APC -- Application Program Command */
|
|
case '^': /* PM -- Privacy Message */
|
|
default:
|
|
fprintf(stderr, "erresc: unknown str ");
|
|
strdump();
|
|
/* die(""); */
|
|
break;
|
|
}
|
|
}
|
|
|
|
void
|
|
strparse(void) {
|
|
/*
|
|
* TODO: Implement parsing like for CSI when required.
|
|
* Format: ESC type cmd ';' arg0 [';' argn] ESC \
|
|
*/
|
|
return;
|
|
}
|
|
|
|
void
|
|
strdump(void) {
|
|
int i;
|
|
printf("ESC%c", strescseq.type);
|
|
for(i = 0; i < strescseq.len; i++) {
|
|
uint c = strescseq.buf[i] & 0xff;
|
|
if(isprint(c)) putchar(c);
|
|
else if(c == '\n') printf("(\\n)");
|
|
else if(c == '\r') printf("(\\r)");
|
|
else if(c == 0x1b) printf("(\\e)");
|
|
else printf("(%02x)", c);
|
|
}
|
|
printf("ESC\\\n");
|
|
}
|
|
|
|
void
|
|
strreset(void) {
|
|
memset(&strescseq, 0, sizeof(strescseq));
|
|
}
|
|
|
|
void
|
|
tputtab(bool forward) {
|
|
uint x = term.c.x;
|
|
|
|
if(forward) {
|
|
if(x == term.col)
|
|
return;
|
|
for(++x; x < term.col && !term.tabs[x]; ++x)
|
|
/* nothing */ ;
|
|
} else {
|
|
if(x == 0)
|
|
return;
|
|
for(--x; x > 0 && !term.tabs[x]; --x)
|
|
/* nothing */ ;
|
|
}
|
|
tmoveto(x, term.c.y);
|
|
}
|
|
|
|
void
|
|
tputc(char *c) {
|
|
char ascii = *c;
|
|
|
|
if(iofd != -1)
|
|
write(iofd, c, 1);
|
|
|
|
if(term.esc & ESC_START) {
|
|
if(term.esc & ESC_CSI) {
|
|
csiescseq.buf[csiescseq.len++] = ascii;
|
|
if(BETWEEN(ascii, 0x40, 0x7E) || csiescseq.len >= ESC_BUF_SIZ) {
|
|
term.esc = 0;
|
|
csiparse(), csihandle();
|
|
}
|
|
} else if(term.esc & ESC_STR) {
|
|
switch(ascii) {
|
|
case '\033':
|
|
term.esc = ESC_START | ESC_STR_END;
|
|
break;
|
|
case '\a': /* backwards compatibility to xterm */
|
|
term.esc = 0;
|
|
strhandle();
|
|
break;
|
|
default:
|
|
strescseq.buf[strescseq.len++] = ascii;
|
|
if(strescseq.len+1 >= STR_BUF_SIZ) {
|
|
term.esc = 0;
|
|
strhandle();
|
|
}
|
|
}
|
|
} else if(term.esc & ESC_STR_END) {
|
|
term.esc = 0;
|
|
if(ascii == '\\')
|
|
strhandle();
|
|
} else if(term.esc & ESC_ALTCHARSET) {
|
|
switch(ascii) {
|
|
case '0': /* Line drawing crap */
|
|
term.c.attr.mode |= ATTR_GFX;
|
|
break;
|
|
case 'B': /* Back to regular text */
|
|
term.c.attr.mode &= ~ATTR_GFX;
|
|
break;
|
|
default:
|
|
fprintf(stderr, "esc unhandled charset: ESC ( %c\n", ascii);
|
|
}
|
|
term.esc = 0;
|
|
} else {
|
|
switch(ascii) {
|
|
case '[':
|
|
term.esc |= ESC_CSI;
|
|
break;
|
|
case 'P': /* DCS -- Device Control String */
|
|
case '_': /* APC -- Application Program Command */
|
|
case '^': /* PM -- Privacy Message */
|
|
case ']': /* OSC -- Operating System Command */
|
|
case 'k': /* old title set compatibility */
|
|
strreset();
|
|
strescseq.type = ascii;
|
|
term.esc |= ESC_STR;
|
|
break;
|
|
case '(':
|
|
term.esc |= ESC_ALTCHARSET;
|
|
break;
|
|
case 'D': /* IND -- Linefeed */
|
|
if(term.c.y == term.bot)
|
|
tscrollup(term.top, 1);
|
|
else
|
|
tmoveto(term.c.x, term.c.y+1);
|
|
term.esc = 0;
|
|
break;
|
|
case 'E': /* NEL -- Next line */
|
|
tnewline(1); /* always go to first col */
|
|
term.esc = 0;
|
|
break;
|
|
case 'H': /* HTS -- Horizontal tab stop */
|
|
term.tabs[term.c.x] = 1;
|
|
term.esc = 0;
|
|
break;
|
|
case 'M': /* RI -- Reverse index */
|
|
if(term.c.y == term.top)
|
|
tscrolldown(term.top, 1);
|
|
else
|
|
tmoveto(term.c.x, term.c.y-1);
|
|
term.esc = 0;
|
|
break;
|
|
case 'c': /* RIS -- Reset to inital state */
|
|
treset();
|
|
term.esc = 0;
|
|
xresettitle();
|
|
break;
|
|
case '=': /* DECPAM -- Application keypad */
|
|
term.mode |= MODE_APPKEYPAD;
|
|
term.esc = 0;
|
|
break;
|
|
case '>': /* DECPNM -- Normal keypad */
|
|
term.mode &= ~MODE_APPKEYPAD;
|
|
term.esc = 0;
|
|
break;
|
|
case '7': /* DECSC -- Save Cursor */
|
|
tcursor(CURSOR_SAVE);
|
|
term.esc = 0;
|
|
break;
|
|
case '8': /* DECRC -- Restore Cursor */
|
|
tcursor(CURSOR_LOAD);
|
|
term.esc = 0;
|
|
break;
|
|
case '\\': /* ST -- Stop */
|
|
term.esc = 0;
|
|
break;
|
|
default:
|
|
fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n",
|
|
(uchar) ascii, isprint(ascii)?ascii:'.');
|
|
term.esc = 0;
|
|
}
|
|
}
|
|
} else {
|
|
if(sel.bx != -1 && BETWEEN(term.c.y, sel.by, sel.ey))
|
|
sel.bx = -1;
|
|
switch(ascii) {
|
|
case '\0': /* padding character, do nothing */
|
|
break;
|
|
case '\t':
|
|
tputtab(1);
|
|
break;
|
|
case '\b':
|
|
tmoveto(term.c.x-1, term.c.y);
|
|
break;
|
|
case '\r':
|
|
tmoveto(0, term.c.y);
|
|
break;
|
|
case '\f':
|
|
case '\v':
|
|
case '\n':
|
|
/* go to first col if the mode is set */
|
|
tnewline(IS_SET(MODE_CRLF));
|
|
break;
|
|
case '\a':
|
|
if(!(xw.state & WIN_FOCUSED))
|
|
xseturgency(1);
|
|
break;
|
|
case '\033':
|
|
csireset();
|
|
term.esc = ESC_START;
|
|
break;
|
|
default:
|
|
if(IS_SET(MODE_WRAP) && term.c.state & CURSOR_WRAPNEXT)
|
|
tnewline(1); /* always go to first col */
|
|
tsetchar(c);
|
|
if(term.c.x+1 < term.col)
|
|
tmoveto(term.c.x+1, term.c.y);
|
|
else
|
|
term.c.state |= CURSOR_WRAPNEXT;
|
|
}
|
|
}
|
|
}
|
|
|
|
int
|
|
tresize(int col, int row) {
|
|
int i, x;
|
|
int minrow = MIN(row, term.row);
|
|
int mincol = MIN(col, term.col);
|
|
int slide = term.c.y - row + 1;
|
|
|
|
if(col < 1 || row < 1)
|
|
return 0;
|
|
|
|
/* free unneeded rows */
|
|
i = 0;
|
|
if(slide > 0) {
|
|
/* slide screen to keep cursor where we expect it -
|
|
* tscrollup would work here, but we can optimize to
|
|
* memmove because we're freeing the earlier lines */
|
|
for(/* i = 0 */; i < slide; i++) {
|
|
free(term.line[i]);
|
|
free(term.alt[i]);
|
|
}
|
|
memmove(term.line, term.line + slide, row * sizeof(Line));
|
|
memmove(term.alt, term.alt + slide, row * sizeof(Line));
|
|
}
|
|
for(i += row; i < term.row; i++) {
|
|
free(term.line[i]);
|
|
free(term.alt[i]);
|
|
}
|
|
|
|
/* resize to new height */
|
|
term.line = xrealloc(term.line, row * sizeof(Line));
|
|
term.alt = xrealloc(term.alt, row * sizeof(Line));
|
|
term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty));
|
|
term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs));
|
|
|
|
/* resize each row to new width, zero-pad if needed */
|
|
for(i = 0; i < minrow; i++) {
|
|
term.dirty[i] = 1;
|
|
term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph));
|
|
term.alt[i] = xrealloc(term.alt[i], col * sizeof(Glyph));
|
|
for(x = mincol; x < col; x++) {
|
|
term.line[i][x].state = 0;
|
|
term.alt[i][x].state = 0;
|
|
}
|
|
}
|
|
|
|
/* allocate any new rows */
|
|
for(/* i == minrow */; i < row; i++) {
|
|
term.dirty[i] = 1;
|
|
term.line[i] = xcalloc(col, sizeof(Glyph));
|
|
term.alt [i] = xcalloc(col, sizeof(Glyph));
|
|
}
|
|
if(col > term.col) {
|
|
bool *bp = term.tabs + term.col;
|
|
|
|
memset(bp, 0, sizeof(*term.tabs) * (col - term.col));
|
|
while(--bp > term.tabs && !*bp)
|
|
/* nothing */ ;
|
|
for(bp += TAB; bp < term.tabs + col; bp += TAB)
|
|
*bp = 1;
|
|
}
|
|
/* update terminal size */
|
|
term.col = col, term.row = row;
|
|
/* make use of the LIMIT in tmoveto */
|
|
tmoveto(term.c.x, term.c.y);
|
|
/* reset scrolling region */
|
|
tsetscroll(0, row-1);
|
|
|
|
return (slide > 0);
|
|
}
|
|
|
|
void
|
|
xresize(int col, int row) {
|
|
xw.tw = MAX(1, 2*BORDER + col * xw.cw);
|
|
xw.th = MAX(1, 2*BORDER + row * xw.ch);
|
|
|
|
XftDrawChange(xw.xft_draw, xw.buf);
|
|
}
|
|
|
|
void
|
|
xloadcols(void) {
|
|
int i, r, g, b;
|
|
XRenderColor xft_color = { .alpha = 0 };
|
|
ulong white = WhitePixel(xw.dpy, xw.scr);
|
|
|
|
/* load colors [0-15] colors and [256-LEN(colorname)[ (config.h) */
|
|
for(i = 0; i < LEN(colorname); i++) {
|
|
if(!colorname[i])
|
|
continue;
|
|
if(!XftColorAllocName(xw.dpy, xw.vis, xw.cmap, colorname[i], &dc.xft_col[i])) {
|
|
dc.col[i] = white;
|
|
fprintf(stderr, "Could not allocate color '%s'\n", colorname[i]);
|
|
} else
|
|
dc.col[i] = dc.xft_col[i].pixel;
|
|
}
|
|
|
|
/* load colors [16-255] ; same colors as xterm */
|
|
for(i = 16, r = 0; r < 6; r++)
|
|
for(g = 0; g < 6; g++)
|
|
for(b = 0; b < 6; b++) {
|
|
xft_color.red = r == 0 ? 0 : 0x3737 + 0x2828 * r;
|
|
xft_color.green = g == 0 ? 0 : 0x3737 + 0x2828 * g;
|
|
xft_color.blue = b == 0 ? 0 : 0x3737 + 0x2828 * b;
|
|
if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &xft_color, &dc.xft_col[i])) {
|
|
dc.col[i] = white;
|
|
fprintf(stderr, "Could not allocate color %d\n", i);
|
|
} else
|
|
dc.col[i] = dc.xft_col[i].pixel;
|
|
i++;
|
|
}
|
|
|
|
for(r = 0; r < 24; r++, i++) {
|
|
xft_color.red = xft_color.green = xft_color.blue = 0x0808 + 0x0a0a * r;
|
|
if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &xft_color, &dc.xft_col[i])) {
|
|
dc.col[i] = white;
|
|
fprintf(stderr, "Could not allocate color %d\n", i);
|
|
} else
|
|
dc.col[i] = dc.xft_col[i].pixel;
|
|
}
|
|
}
|
|
|
|
void
|
|
xclear(int x1, int y1, int x2, int y2) {
|
|
XSetForeground(xw.dpy, dc.gc, dc.col[IS_SET(MODE_REVERSE) ? DefaultFG : DefaultBG]);
|
|
XFillRectangle(xw.dpy, xw.buf, dc.gc,
|
|
BORDER + x1 * xw.cw, BORDER + y1 * xw.ch,
|
|
(x2-x1+1) * xw.cw, (y2-y1+1) * xw.ch);
|
|
}
|
|
|
|
void
|
|
xhints(void) {
|
|
XClassHint class = {opt_class ? opt_class : TNAME, TNAME};
|
|
XWMHints wm = {.flags = InputHint, .input = 1};
|
|
XSizeHints *sizeh = NULL;
|
|
|
|
sizeh = XAllocSizeHints();
|
|
if(xw.isfixed == False) {
|
|
sizeh->flags = PSize | PResizeInc | PBaseSize;
|
|
sizeh->height = xw.h;
|
|
sizeh->width = xw.w;
|
|
sizeh->height_inc = xw.ch;
|
|
sizeh->width_inc = xw.cw;
|
|
sizeh->base_height = 2*BORDER;
|
|
sizeh->base_width = 2*BORDER;
|
|
} else {
|
|
sizeh->flags = PMaxSize | PMinSize;
|
|
sizeh->min_width = sizeh->max_width = xw.fw;
|
|
sizeh->min_height = sizeh->max_height = xw.fh;
|
|
}
|
|
|
|
XSetWMProperties(xw.dpy, xw.win, NULL, NULL, NULL, 0, sizeh, &wm, &class);
|
|
XFree(sizeh);
|
|
}
|
|
|
|
void
|
|
xinitfont(Font *f, char *fontstr) {
|
|
f->xft_set = XftFontOpenName(xw.dpy, xw.scr, fontstr);
|
|
|
|
if(!f->xft_set)
|
|
die("st: can't open font %s.\n", fontstr);
|
|
|
|
f->ascent = f->xft_set->ascent;
|
|
f->descent = f->xft_set->descent;
|
|
f->lbearing = 0;
|
|
f->rbearing = f->xft_set->max_advance_width;
|
|
}
|
|
|
|
void
|
|
initfonts(char *fontstr, char *bfontstr, char *ifontstr, char *ibfontstr) {
|
|
xinitfont(&dc.font, fontstr);
|
|
xinitfont(&dc.bfont, bfontstr);
|
|
xinitfont(&dc.ifont, ifontstr);
|
|
xinitfont(&dc.ibfont, ibfontstr);
|
|
}
|
|
|
|
void
|
|
xinit(void) {
|
|
XSetWindowAttributes attrs;
|
|
Cursor cursor;
|
|
Window parent;
|
|
int sw, sh, major, minor;
|
|
|
|
if(!(xw.dpy = XOpenDisplay(NULL)))
|
|
die("Can't open display\n");
|
|
xw.scr = XDefaultScreen(xw.dpy);
|
|
xw.vis = XDefaultVisual(xw.dpy, xw.scr);
|
|
|
|
/* font */
|
|
initfonts(FONT, BOLDFONT, ITALICFONT, ITALICBOLDFONT);
|
|
|
|
/* XXX: Assuming same size for bold font */
|
|
xw.cw = dc.font.rbearing - dc.font.lbearing;
|
|
xw.ch = dc.font.ascent + dc.font.descent;
|
|
|
|
/* colors */
|
|
xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
|
|
xloadcols();
|
|
|
|
/* adjust fixed window geometry */
|
|
if(xw.isfixed) {
|
|
sw = DisplayWidth(xw.dpy, xw.scr);
|
|
sh = DisplayHeight(xw.dpy, xw.scr);
|
|
if(xw.fx < 0)
|
|
xw.fx = sw + xw.fx - xw.fw - 1;
|
|
if(xw.fy < 0)
|
|
xw.fy = sh + xw.fy - xw.fh - 1;
|
|
|
|
xw.h = xw.fh;
|
|
xw.w = xw.fw;
|
|
} else {
|
|
/* window - default size */
|
|
xw.h = 2*BORDER + term.row * xw.ch;
|
|
xw.w = 2*BORDER + term.col * xw.cw;
|
|
xw.fx = 0;
|
|
xw.fy = 0;
|
|
}
|
|
|
|
attrs.background_pixel = dc.col[DefaultBG];
|
|
attrs.border_pixel = dc.col[DefaultBG];
|
|
attrs.bit_gravity = NorthWestGravity;
|
|
attrs.event_mask = FocusChangeMask | KeyPressMask
|
|
| ExposureMask | VisibilityChangeMask | StructureNotifyMask
|
|
| ButtonMotionMask | ButtonPressMask | ButtonReleaseMask;
|
|
attrs.colormap = xw.cmap;
|
|
|
|
parent = opt_embed ? strtol(opt_embed, NULL, 0) : XRootWindow(xw.dpy, xw.scr);
|
|
xw.win = XCreateWindow(xw.dpy, parent, xw.fx, xw.fy,
|
|
xw.w, xw.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
|
|
xw.vis,
|
|
CWBackPixel | CWBorderPixel | CWBitGravity | CWEventMask
|
|
| CWColormap,
|
|
&attrs);
|
|
|
|
/* double buffering */
|
|
if(!XdbeQueryExtension(xw.dpy, &major, &minor))
|
|
die("Xdbe extension is not present\n");
|
|
xw.buf = XdbeAllocateBackBufferName(xw.dpy, xw.win, XdbeCopied);
|
|
|
|
/* Xft rendering context */
|
|
xw.xft_draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap);
|
|
|
|
/* input methods */
|
|
xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL);
|
|
xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing
|
|
| XIMStatusNothing, XNClientWindow, xw.win,
|
|
XNFocusWindow, xw.win, NULL);
|
|
/* gc */
|
|
dc.gc = XCreateGC(xw.dpy, xw.win, 0, NULL);
|
|
|
|
/* white cursor, black outline */
|
|
cursor = XCreateFontCursor(xw.dpy, XC_xterm);
|
|
XDefineCursor(xw.dpy, xw.win, cursor);
|
|
XRecolorCursor(xw.dpy, cursor,
|
|
&(XColor){.red = 0xffff, .green = 0xffff, .blue = 0xffff},
|
|
&(XColor){.red = 0x0000, .green = 0x0000, .blue = 0x0000});
|
|
|
|
xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False);
|
|
|
|
xresettitle();
|
|
XMapWindow(xw.dpy, xw.win);
|
|
xhints();
|
|
XSync(xw.dpy, 0);
|
|
}
|
|
|
|
void
|
|
xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
|
|
int fg = base.fg, bg = base.bg, temp;
|
|
int winx = BORDER+x*xw.cw, winy = BORDER+y*xw.ch + dc.font.ascent, width = charlen*xw.cw;
|
|
Font *font = &dc.font;
|
|
XGlyphInfo extents;
|
|
int i;
|
|
|
|
/* only switch default fg/bg if term is in RV mode */
|
|
if(IS_SET(MODE_REVERSE)) {
|
|
if(fg == DefaultFG)
|
|
fg = DefaultBG;
|
|
if(bg == DefaultBG)
|
|
bg = DefaultFG;
|
|
}
|
|
|
|
if(base.mode & ATTR_REVERSE)
|
|
temp = fg, fg = bg, bg = temp;
|
|
|
|
if(base.mode & ATTR_BOLD) {
|
|
fg += 8;
|
|
font = &dc.bfont;
|
|
}
|
|
|
|
if(base.mode & ATTR_ITALIC)
|
|
font = &dc.ifont;
|
|
if(base.mode & (ATTR_ITALIC|ATTR_ITALIC))
|
|
font = &dc.ibfont;
|
|
|
|
XSetBackground(xw.dpy, dc.gc, dc.col[bg]);
|
|
XSetForeground(xw.dpy, dc.gc, dc.col[fg]);
|
|
|
|
if(base.mode & ATTR_GFX) {
|
|
for(i = 0; i < bytelen; i++) {
|
|
char c = gfx[(uint)s[i] % 256];
|
|
if(c)
|
|
s[i] = c;
|
|
else if(s[i] > 0x5f)
|
|
s[i] -= 0x5f;
|
|
}
|
|
}
|
|
|
|
XftTextExtentsUtf8(xw.dpy, font->xft_set, (FcChar8 *)s, bytelen, &extents);
|
|
width = extents.xOff;
|
|
XftDrawRect(xw.xft_draw, &dc.xft_col[bg], winx, winy - font->ascent, width, xw.ch);
|
|
XftDrawStringUtf8(xw.xft_draw, &dc.xft_col[fg], font->xft_set, winx, winy, (FcChar8 *)s, bytelen);
|
|
|
|
if(base.mode & ATTR_UNDERLINE)
|
|
XDrawLine(xw.dpy, xw.buf, dc.gc, winx, winy+1, winx+width-1, winy+1);
|
|
}
|
|
|
|
void
|
|
xdrawcursor(void) {
|
|
static int oldx = 0;
|
|
static int oldy = 0;
|
|
int sl;
|
|
Glyph g = {{' '}, ATTR_NULL, DefaultBG, DefaultCS, 0};
|
|
|
|
LIMIT(oldx, 0, term.col-1);
|
|
LIMIT(oldy, 0, term.row-1);
|
|
|
|
if(term.line[term.c.y][term.c.x].state & GLYPH_SET)
|
|
memcpy(g.c, term.line[term.c.y][term.c.x].c, UTF_SIZ);
|
|
|
|
/* remove the old cursor */
|
|
if(term.line[oldy][oldx].state & GLYPH_SET) {
|
|
sl = utf8size(term.line[oldy][oldx].c);
|
|
xdraws(term.line[oldy][oldx].c, term.line[oldy][oldx], oldx, oldy, 1, sl);
|
|
} else
|
|
xclear(oldx, oldy, oldx, oldy);
|
|
|
|
/* draw the new one */
|
|
if(!(term.c.state & CURSOR_HIDE)) {
|
|
if(!(xw.state & WIN_FOCUSED))
|
|
g.bg = DefaultUCS;
|
|
|
|
if(IS_SET(MODE_REVERSE))
|
|
g.mode |= ATTR_REVERSE, g.fg = DefaultCS, g.bg = DefaultFG;
|
|
|
|
sl = utf8size(g.c);
|
|
xdraws(g.c, g, term.c.x, term.c.y, 1, sl);
|
|
oldx = term.c.x, oldy = term.c.y;
|
|
}
|
|
}
|
|
|
|
void
|
|
xresettitle(void) {
|
|
XStoreName(xw.dpy, xw.win, opt_title ? opt_title : "st");
|
|
}
|
|
|
|
void
|
|
redraw(void) {
|
|
struct timespec tv = {0, REDRAW_TIMEOUT * 1000};
|
|
|
|
xclear(0, 0, xw.w, xw.h);
|
|
tfulldirt();
|
|
draw();
|
|
XSync(xw.dpy, False); /* necessary for a good tput flash */
|
|
nanosleep(&tv, NULL);
|
|
}
|
|
|
|
void
|
|
draw() {
|
|
XdbeSwapInfo swpinfo[1] = {{xw.win, XdbeCopied}};
|
|
|
|
drawregion(0, 0, term.col, term.row);
|
|
XdbeSwapBuffers(xw.dpy, swpinfo, 1);
|
|
}
|
|
|
|
void
|
|
drawregion(int x1, int y1, int x2, int y2) {
|
|
int ic, ib, x, y, ox, sl;
|
|
Glyph base, new;
|
|
char buf[DRAW_BUF_SIZ];
|
|
bool ena_sel = sel.bx != -1, alt = IS_SET(MODE_ALTSCREEN);
|
|
|
|
if((sel.alt && !alt) || (!sel.alt && alt))
|
|
ena_sel = 0;
|
|
if(!(xw.state & WIN_VISIBLE))
|
|
return;
|
|
|
|
for(y = y1; y < y2; y++) {
|
|
if(!term.dirty[y])
|
|
continue;
|
|
xclear(0, y, term.col, y);
|
|
term.dirty[y] = 0;
|
|
base = term.line[y][0];
|
|
ic = ib = ox = 0;
|
|
for(x = x1; x < x2; x++) {
|
|
new = term.line[y][x];
|
|
if(ena_sel && *(new.c) && selected(x, y))
|
|
new.mode ^= ATTR_REVERSE;
|
|
if(ib > 0 && (!(new.state & GLYPH_SET) || ATTRCMP(base, new) ||
|
|
ib >= DRAW_BUF_SIZ-UTF_SIZ)) {
|
|
xdraws(buf, base, ox, y, ic, ib);
|
|
ic = ib = 0;
|
|
}
|
|
if(new.state & GLYPH_SET) {
|
|
if(ib == 0) {
|
|
ox = x;
|
|
base = new;
|
|
}
|
|
sl = utf8size(new.c);
|
|
memcpy(buf+ib, new.c, sl);
|
|
ib += sl;
|
|
++ic;
|
|
}
|
|
}
|
|
if(ib > 0)
|
|
xdraws(buf, base, ox, y, ic, ib);
|
|
}
|
|
xdrawcursor();
|
|
}
|
|
|
|
void
|
|
expose(XEvent *ev) {
|
|
XExposeEvent *e = &ev->xexpose;
|
|
if(xw.state & WIN_REDRAW) {
|
|
if(!e->count)
|
|
xw.state &= ~WIN_REDRAW;
|
|
}
|
|
}
|
|
|
|
void
|
|
visibility(XEvent *ev) {
|
|
XVisibilityEvent *e = &ev->xvisibility;
|
|
if(e->state == VisibilityFullyObscured)
|
|
xw.state &= ~WIN_VISIBLE;
|
|
else if(!(xw.state & WIN_VISIBLE))
|
|
/* need a full redraw for next Expose, not just a buf copy */
|
|
xw.state |= WIN_VISIBLE | WIN_REDRAW;
|
|
}
|
|
|
|
void
|
|
unmap(XEvent *ev) {
|
|
xw.state &= ~WIN_VISIBLE;
|
|
}
|
|
|
|
void
|
|
xseturgency(int add) {
|
|
XWMHints *h = XGetWMHints(xw.dpy, xw.win);
|
|
h->flags = add ? (h->flags | XUrgencyHint) : (h->flags & ~XUrgencyHint);
|
|
XSetWMHints(xw.dpy, xw.win, h);
|
|
XFree(h);
|
|
}
|
|
|
|
void
|
|
focus(XEvent *ev) {
|
|
if(ev->type == FocusIn) {
|
|
xw.state |= WIN_FOCUSED;
|
|
xseturgency(0);
|
|
} else
|
|
xw.state &= ~WIN_FOCUSED;
|
|
}
|
|
|
|
char*
|
|
kmap(KeySym k, uint state) {
|
|
int i;
|
|
state &= ~Mod2Mask;
|
|
for(i = 0; i < LEN(key); i++) {
|
|
uint mask = key[i].mask;
|
|
if(key[i].k == k && ((state & mask) == mask || (mask == XK_NO_MOD && !state)))
|
|
return (char*)key[i].s;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
void
|
|
kpress(XEvent *ev) {
|
|
XKeyEvent *e = &ev->xkey;
|
|
KeySym ksym;
|
|
char buf[32];
|
|
char *customkey;
|
|
int len;
|
|
int meta;
|
|
int shift;
|
|
Status status;
|
|
|
|
meta = e->state & Mod1Mask;
|
|
shift = e->state & ShiftMask;
|
|
len = XmbLookupString(xw.xic, e, buf, sizeof(buf), &ksym, &status);
|
|
|
|
/* 1. custom keys from config.h */
|
|
if((customkey = kmap(ksym, e->state)))
|
|
ttywrite(customkey, strlen(customkey));
|
|
/* 2. hardcoded (overrides X lookup) */
|
|
else
|
|
switch(ksym) {
|
|
case XK_Up:
|
|
case XK_Down:
|
|
case XK_Left:
|
|
case XK_Right:
|
|
/* XXX: shift up/down doesn't work */
|
|
sprintf(buf, "\033%c%c", IS_SET(MODE_APPKEYPAD) ? 'O' : '[', (shift ? "dacb":"DACB")[ksym - XK_Left]);
|
|
ttywrite(buf, 3);
|
|
break;
|
|
case XK_Insert:
|
|
if(shift)
|
|
selpaste();
|
|
break;
|
|
case XK_Return:
|
|
if(IS_SET(MODE_CRLF))
|
|
ttywrite("\r\n", 2);
|
|
else
|
|
ttywrite("\r", 1);
|
|
break;
|
|
/* 3. X lookup */
|
|
default:
|
|
if(len > 0) {
|
|
if(meta && len == 1)
|
|
ttywrite("\033", 1);
|
|
ttywrite(buf, len);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
void
|
|
cmessage(XEvent *e) {
|
|
/* See xembed specs
|
|
http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html */
|
|
if(e->xclient.message_type == xw.xembed && e->xclient.format == 32) {
|
|
if(e->xclient.data.l[1] == XEMBED_FOCUS_IN) {
|
|
xw.state |= WIN_FOCUSED;
|
|
xseturgency(0);
|
|
} else if(e->xclient.data.l[1] == XEMBED_FOCUS_OUT) {
|
|
xw.state &= ~WIN_FOCUSED;
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
resize(XEvent *e) {
|
|
int col, row;
|
|
|
|
if(e->xconfigure.width == xw.w && e->xconfigure.height == xw.h)
|
|
return;
|
|
|
|
xw.w = e->xconfigure.width;
|
|
xw.h = e->xconfigure.height;
|
|
col = (xw.w - 2*BORDER) / xw.cw;
|
|
row = (xw.h - 2*BORDER) / xw.ch;
|
|
if(col == term.col && row == term.row)
|
|
return;
|
|
|
|
xclear(0, 0, xw.w, xw.h);
|
|
tresize(col, row);
|
|
xresize(col, row);
|
|
ttyresize(col, row);
|
|
}
|
|
|
|
void
|
|
run(void) {
|
|
XEvent ev;
|
|
fd_set rfd;
|
|
int xfd = XConnectionNumber(xw.dpy), i;
|
|
struct timeval drawtimeout, *tv = NULL;
|
|
|
|
for(i = 0;; i++) {
|
|
FD_ZERO(&rfd);
|
|
FD_SET(cmdfd, &rfd);
|
|
FD_SET(xfd, &rfd);
|
|
if(select(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, tv) < 0) {
|
|
if(errno == EINTR)
|
|
continue;
|
|
die("select failed: %s\n", SERRNO);
|
|
}
|
|
|
|
/*
|
|
* Stop after a certain number of reads so the user does not
|
|
* feel like the system is stuttering.
|
|
*/
|
|
if(i < 1000 && FD_ISSET(cmdfd, &rfd)) {
|
|
ttyread();
|
|
|
|
/*
|
|
* Just wait a bit so it isn't disturbing the
|
|
* user and the system is able to write something.
|
|
*/
|
|
drawtimeout.tv_sec = 0;
|
|
drawtimeout.tv_usec = 5;
|
|
tv = &drawtimeout;
|
|
continue;
|
|
}
|
|
i = 0;
|
|
tv = NULL;
|
|
|
|
while(XPending(xw.dpy)) {
|
|
XNextEvent(xw.dpy, &ev);
|
|
if(XFilterEvent(&ev, xw.win))
|
|
continue;
|
|
if(handler[ev.type])
|
|
(handler[ev.type])(&ev);
|
|
}
|
|
|
|
draw();
|
|
XFlush(xw.dpy);
|
|
}
|
|
}
|
|
|
|
int
|
|
main(int argc, char *argv[]) {
|
|
int i, bitm, xr, yr;
|
|
uint wr, hr;
|
|
|
|
xw.fw = xw.fh = xw.fx = xw.fy = 0;
|
|
xw.isfixed = False;
|
|
|
|
for(i = 1; i < argc; i++) {
|
|
switch(argv[i][0] != '-' || argv[i][2] ? -1 : argv[i][1]) {
|
|
case 't':
|
|
if(++i < argc) opt_title = argv[i];
|
|
break;
|
|
case 'c':
|
|
if(++i < argc) opt_class = argv[i];
|
|
break;
|
|
case 'w':
|
|
if(++i < argc) opt_embed = argv[i];
|
|
break;
|
|
case 'f':
|
|
if(++i < argc) opt_io = argv[i];
|
|
break;
|
|
case 'e':
|
|
/* eat every remaining arguments */
|
|
if(++i < argc) opt_cmd = &argv[i];
|
|
goto run;
|
|
case 'g':
|
|
if(++i >= argc)
|
|
break;
|
|
|
|
bitm = XParseGeometry(argv[i], &xr, &yr, &wr, &hr);
|
|
if(bitm & XValue)
|
|
xw.fx = xr;
|
|
if(bitm & YValue)
|
|
xw.fy = yr;
|
|
if(bitm & WidthValue)
|
|
xw.fw = (int)wr;
|
|
if(bitm & HeightValue)
|
|
xw.fh = (int)hr;
|
|
if(bitm & XNegative && xw.fx == 0)
|
|
xw.fx = -1;
|
|
if(bitm & XNegative && xw.fy == 0)
|
|
xw.fy = -1;
|
|
|
|
if(xw.fh != 0 && xw.fw != 0)
|
|
xw.isfixed = True;
|
|
break;
|
|
case 'v':
|
|
default:
|
|
die(USAGE);
|
|
}
|
|
}
|
|
|
|
run:
|
|
setlocale(LC_CTYPE, "");
|
|
xinit();
|
|
tnew(80, 24);
|
|
ttynew();
|
|
selinit();
|
|
run();
|
|
return 0;
|
|
}
|
|
|