mirror of
https://github.com/pikami/st.git
synced 2024-11-25 21:35:42 +00:00
3240 lines
70 KiB
C
3240 lines
70 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 <pwd.h>
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#include <stdarg.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <signal.h>
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#include <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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#define Draw XftDraw *
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#define Colour XftColor
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#define Colourmap Colormap
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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 UTF_SIZ 4
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#define ESC_BUF_SIZ (128*UTF_SIZ)
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#define ESC_ARG_SIZ 16
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#define STR_BUF_SIZ ESC_BUF_SIZ
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#define STR_ARG_SIZ ESC_ARG_SIZ
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#define DRAW_BUF_SIZ 20*1024
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#define XK_ANY_MOD UINT_MAX
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#define XK_NO_MOD 0
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#define REDRAW_TIMEOUT (80*1000) /* 80 ms */
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/* macros */
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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)) != 0)
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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 VT102ID "\033[?6c"
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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_SAVE,
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CURSOR_LOAD
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};
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enum cursor_state {
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CURSOR_DEFAULT = 0,
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CURSOR_WRAPNEXT = 1,
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CURSOR_ORIGIN = 2
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};
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enum 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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MODE_HIDE = 512,
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MODE_ECHO = 1024,
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MODE_APPCURSOR = 2048
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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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ESC_TEST = 32, /* Enter in test mode */
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};
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enum window_state {
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WIN_VISIBLE = 1,
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WIN_REDRAW = 2,
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WIN_FOCUSED = 4
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};
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/* 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 numlock; /* lock numbers in keyboard */
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bool *tabs;
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} Term;
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/* Purely graphic info */
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typedef struct {
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Display *dpy;
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Colourmap cmap;
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Window win;
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Drawable buf;
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Atom xembed, wmdeletewin;
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XIM xim;
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XIC xic;
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Draw draw;
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Visual *vis;
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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, h; /* window width and height */
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int ch; /* char height */
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int cw; /* char width */
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char state; /* focus, redraw, visible */
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} XWindow;
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typedef struct {
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KeySym k;
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uint mask;
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char s[ESC_BUF_SIZ];
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/* three valued logic variables: 0 indifferent, 1 on, -1 off */
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signed char appkey; /* application keypad */
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signed char appcursor; /* application cursor */
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signed char crlf; /* crlf mode */
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} Key;
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/* 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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typedef union {
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int i;
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unsigned int ui;
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float f;
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const void *v;
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} Arg;
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typedef struct {
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unsigned int mod;
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KeySym keysym;
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void (*func)(const Arg *);
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const Arg arg;
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} Shortcut;
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/* function definitions used in config.h */
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static void xzoom(const Arg *);
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static void selpaste(const Arg *);
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static void numlock(const Arg *);
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/* Config.h for applying patches and the configuration. */
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#include "config.h"
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/* Font structure */
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typedef struct {
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int height;
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int width;
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int ascent;
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int descent;
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short lbearing;
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short rbearing;
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XftFont *match;
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FcFontSet *set;
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FcPattern *pattern;
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} Font;
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/* Drawing Context */
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typedef struct {
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Colour col[LEN(colorname) < 256 ? 256 : LEN(colorname)];
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Font font, bfont, ifont, ibfont;
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GC gc;
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} DC;
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static void die(const char *, ...);
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static void draw(void);
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static void redraw(int);
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static void drawregion(int, int, int, int);
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static void execsh(void);
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static void sigchld(int);
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static void run(void);
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static void csidump(void);
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static void csihandle(void);
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static void csiparse(void);
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static void csireset(void);
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static 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 tmoveato(int x, int y);
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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 *, Glyph *, int, int);
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static void tsetscroll(int, int);
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static void tswapscreen(void);
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static void tsetdirt(int, int);
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static void tsetmode(bool, bool, int *, int);
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static void tfulldirt(void);
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static void techo(char *, int);
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static inline bool match(uint, uint);
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static void ttynew(void);
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static void ttyread(void);
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static void ttyresize(void);
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static void 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 int xloadfont(Font *, FcPattern *);
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static void xloadfonts(char *, int);
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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 xunloadfonts(void);
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static void xresize(int, int);
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static void expose(XEvent *);
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static void visibility(XEvent *);
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static void unmap(XEvent *);
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static char *kmap(KeySym, uint);
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static void kpress(XEvent *);
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static void cmessage(XEvent *);
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static void cresize(int, int);
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static void resize(XEvent *);
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static void focus(XEvent *);
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static void brelease(XEvent *);
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static void bpress(XEvent *);
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static void bmotion(XEvent *);
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static void selnotify(XEvent *);
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static void selclear(XEvent *);
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static void selrequest(XEvent *);
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static void selinit(void);
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static inline bool selected(int, int);
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static void selcopy(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 ssize_t xwrite(int, char *, size_t);
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static void *xmalloc(size_t);
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static void *xrealloc(void *, size_t);
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static void *xcalloc(size_t, size_t);
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static void (*handler[LASTEvent])(XEvent *) = {
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[KeyPress] = kpress,
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[ClientMessage] = cmessage,
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[ConfigureNotify] = resize,
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[VisibilityNotify] = visibility,
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[UnmapNotify] = unmap,
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[Expose] = expose,
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[FocusIn] = focus,
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[FocusOut] = focus,
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[MotionNotify] = bmotion,
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[ButtonPress] = bpress,
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[ButtonRelease] = brelease,
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[SelectionClear] = selclear,
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[SelectionNotify] = selnotify,
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[SelectionRequest] = selrequest,
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};
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/* Globals */
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static DC dc;
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static XWindow xw;
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static Term term;
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static CSIEscape csiescseq;
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static STREscape strescseq;
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static int cmdfd;
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static pid_t pid;
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static Selection sel;
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static int iofd = -1;
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static char **opt_cmd = NULL;
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static char *opt_io = NULL;
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static char *opt_title = NULL;
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static char *opt_embed = NULL;
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static char *opt_class = NULL;
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static char *opt_font = NULL;
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bool usedbe = False;
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static char *usedfont = NULL;
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static int usedfontsize = 0;
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/* Font Ring Cache */
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enum {
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FRC_NORMAL,
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FRC_ITALIC,
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FRC_BOLD,
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FRC_ITALICBOLD
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};
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typedef struct {
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XftFont *font;
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long c;
|
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int flags;
|
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} Fontcache;
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|
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/*
|
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* Fontcache is a ring buffer, with frccur as current position and frclen as
|
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* the current length of used elements.
|
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*/
|
||
|
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static Fontcache frc[1024];
|
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static int frccur = -1, frclen = 0;
|
||
|
||
ssize_t
|
||
xwrite(int fd, char *s, size_t len) {
|
||
size_t aux = len;
|
||
|
||
while(len > 0) {
|
||
ssize_t r = write(fd, s, len);
|
||
if(r < 0)
|
||
return r;
|
||
len -= r;
|
||
s += r;
|
||
}
|
||
return aux;
|
||
}
|
||
|
||
void *
|
||
xmalloc(size_t len) {
|
||
void *p = malloc(len);
|
||
|
||
if(!p)
|
||
die("Out of memory\n");
|
||
|
||
return p;
|
||
}
|
||
|
||
void *
|
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xrealloc(void *p, size_t len) {
|
||
if((p = realloc(p, len)) == NULL)
|
||
die("Out of memory\n");
|
||
|
||
return p;
|
||
}
|
||
|
||
void *
|
||
xcalloc(size_t nmemb, size_t size) {
|
||
void *p = calloc(nmemb, size);
|
||
|
||
if(!p)
|
||
die("Out of memory\n");
|
||
|
||
return p;
|
||
}
|
||
|
||
int
|
||
utf8decode(char *s, long *u) {
|
||
uchar c;
|
||
int i, n, rtn;
|
||
|
||
rtn = 1;
|
||
c = *s;
|
||
if(~c & B7) { /* 0xxxxxxx */
|
||
*u = c;
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||
return rtn;
|
||
} else if((c & (B7|B6|B5)) == (B7|B6)) { /* 110xxxxx */
|
||
*u = c&(B4|B3|B2|B1|B0);
|
||
n = 1;
|
||
} else if((c & (B7|B6|B5|B4)) == (B7|B6|B5)) { /* 1110xxxx */
|
||
*u = c&(B3|B2|B1|B0);
|
||
n = 2;
|
||
} else if((c & (B7|B6|B5|B4|B3)) == (B7|B6|B5|B4)) { /* 11110xxx */
|
||
*u = c & (B2|B1|B0);
|
||
n = 3;
|
||
} else {
|
||
goto invalid;
|
||
}
|
||
|
||
for(i = n, ++s; i > 0; --i, ++rtn, ++s) {
|
||
c = *s;
|
||
if((c & (B7|B6)) != B7) /* 10xxxxxx */
|
||
goto invalid;
|
||
*u <<= 6;
|
||
*u |= c & (B5|B4|B3|B2|B1|B0);
|
||
}
|
||
|
||
if((n == 1 && *u < 0x80) ||
|
||
(n == 2 && *u < 0x800) ||
|
||
(n == 3 && *u < 0x10000) ||
|
||
(*u >= 0xD800 && *u <= 0xDFFF)) {
|
||
goto invalid;
|
||
}
|
||
|
||
return rtn;
|
||
invalid:
|
||
*u = 0xFFFD;
|
||
|
||
return rtn;
|
||
}
|
||
|
||
int
|
||
utf8encode(long *u, char *s) {
|
||
uchar *sp;
|
||
ulong uc;
|
||
int i, n;
|
||
|
||
sp = (uchar *)s;
|
||
uc = *u;
|
||
if(uc < 0x80) {
|
||
*sp = uc; /* 0xxxxxxx */
|
||
return 1;
|
||
} else if(*u < 0x800) {
|
||
*sp = (uc >> 6) | (B7|B6); /* 110xxxxx */
|
||
n = 1;
|
||
} else if(uc < 0x10000) {
|
||
*sp = (uc >> 12) | (B7|B6|B5); /* 1110xxxx */
|
||
n = 2;
|
||
} else if(uc <= 0x10FFFF) {
|
||
*sp = (uc >> 18) | (B7|B6|B5|B4); /* 11110xxx */
|
||
n = 3;
|
||
} else {
|
||
goto invalid;
|
||
}
|
||
|
||
for(i=n,++sp; i>0; --i,++sp)
|
||
*sp = ((uc >> 6*(i-1)) & (B5|B4|B3|B2|B1|B0)) | B7; /* 10xxxxxx */
|
||
|
||
return n+1;
|
||
invalid:
|
||
/* U+FFFD */
|
||
*s++ = '\xEF';
|
||
*s++ = '\xBF';
|
||
*s = '\xBD';
|
||
|
||
return 3;
|
||
}
|
||
|
||
/* use this if your buffer is less than UTF_SIZ, it returns 1 if you can decode
|
||
UTF-8 otherwise return 0 */
|
||
int
|
||
isfullutf8(char *s, int b) {
|
||
uchar *c1, *c2, *c3;
|
||
|
||
c1 = (uchar *)s;
|
||
c2 = (uchar *)++s;
|
||
c3 = (uchar *)++s;
|
||
if(b < 1) {
|
||
return 0;
|
||
} else if((*c1&(B7|B6|B5)) == (B7|B6) && b == 1) {
|
||
return 0;
|
||
} else if((*c1&(B7|B6|B5|B4)) == (B7|B6|B5) &&
|
||
((b == 1) ||
|
||
((b == 2) && (*c2&(B7|B6)) == B7))) {
|
||
return 0;
|
||
} else if((*c1&(B7|B6|B5|B4|B3)) == (B7|B6|B5|B4) &&
|
||
((b == 1) ||
|
||
((b == 2) && (*c2&(B7|B6)) == B7) ||
|
||
((b == 3) && (*c2&(B7|B6)) == B7 && (*c3&(B7|B6)) == B7))) {
|
||
return 0;
|
||
} else {
|
||
return 1;
|
||
}
|
||
}
|
||
|
||
int
|
||
utf8size(char *s) {
|
||
uchar c = *s;
|
||
|
||
if(~c&B7) {
|
||
return 1;
|
||
} else if((c&(B7|B6|B5)) == (B7|B6)) {
|
||
return 2;
|
||
} else if((c&(B7|B6|B5|B4)) == (B7|B6|B5)) {
|
||
return 3;
|
||
} else {
|
||
return 4;
|
||
}
|
||
}
|
||
|
||
void
|
||
selinit(void) {
|
||
memset(&sel.tclick1, 0, sizeof(sel.tclick1));
|
||
memset(&sel.tclick2, 0, sizeof(sel.tclick2));
|
||
sel.mode = 0;
|
||
sel.bx = -1;
|
||
sel.clip = NULL;
|
||
sel.xtarget = XInternAtom(xw.dpy, "UTF8_STRING", 0);
|
||
if(sel.xtarget == None)
|
||
sel.xtarget = XA_STRING;
|
||
}
|
||
|
||
static int
|
||
x2col(int x) {
|
||
x -= borderpx;
|
||
x /= xw.cw;
|
||
|
||
return LIMIT(x, 0, term.col-1);
|
||
}
|
||
|
||
static int
|
||
y2row(int y) {
|
||
y -= borderpx;
|
||
y /= xw.ch;
|
||
|
||
return LIMIT(y, 0, term.row-1);
|
||
}
|
||
|
||
static inline bool
|
||
selected(int x, int y) {
|
||
int bx, ex;
|
||
|
||
if(sel.ey == y && sel.by == y) {
|
||
bx = MIN(sel.bx, sel.ex);
|
||
ex = MAX(sel.bx, sel.ex);
|
||
return BETWEEN(x, bx, ex);
|
||
}
|
||
|
||
return ((sel.b.y < y && y < sel.e.y)
|
||
|| (y == sel.e.y && x <= sel.e.x))
|
||
|| (y == sel.b.y && x >= sel.b.x
|
||
&& (x <= sel.e.x || sel.b.y != sel.e.y));
|
||
}
|
||
|
||
void
|
||
getbuttoninfo(XEvent *e) {
|
||
sel.alt = IS_SET(MODE_ALTSCREEN);
|
||
|
||
sel.ex = x2col(e->xbutton.x);
|
||
sel.ey = y2row(e->xbutton.y);
|
||
|
||
sel.b.x = sel.by < sel.ey ? sel.bx : sel.ex;
|
||
sel.b.y = MIN(sel.by, sel.ey);
|
||
sel.e.x = sel.by < sel.ey ? sel.ex : sel.bx;
|
||
sel.e.y = MAX(sel.by, sel.ey);
|
||
}
|
||
|
||
void
|
||
mousereport(XEvent *e) {
|
||
int x = x2col(e->xbutton.x);
|
||
int y = y2row(e->xbutton.y);
|
||
int button = e->xbutton.button;
|
||
int state = e->xbutton.state;
|
||
char buf[] = { '\033', '[', 'M', 0, 32+x+1, 32+y+1 };
|
||
static int ob, ox, oy;
|
||
|
||
/* from urxvt */
|
||
if(e->xbutton.type == MotionNotify) {
|
||
if(!IS_SET(MODE_MOUSEMOTION) || (x == ox && y == oy))
|
||
return;
|
||
button = ob + 32;
|
||
ox = x, oy = y;
|
||
} else if(e->xbutton.type == ButtonRelease || button == AnyButton) {
|
||
button = 3;
|
||
} else {
|
||
button -= Button1;
|
||
if(button >= 3)
|
||
button += 64 - 3;
|
||
if(e->xbutton.type == ButtonPress) {
|
||
ob = button;
|
||
ox = x, oy = y;
|
||
}
|
||
}
|
||
|
||
buf[3] = 32 + button + (state & ShiftMask ? 4 : 0)
|
||
+ (state & Mod4Mask ? 8 : 0)
|
||
+ (state & ControlMask ? 16 : 0);
|
||
|
||
ttywrite(buf, sizeof(buf));
|
||
}
|
||
|
||
void
|
||
bpress(XEvent *e) {
|
||
if(IS_SET(MODE_MOUSE)) {
|
||
mousereport(e);
|
||
} else if(e->xbutton.button == Button1) {
|
||
if(sel.bx != -1) {
|
||
sel.bx = -1;
|
||
tsetdirt(sel.b.y, sel.e.y);
|
||
draw();
|
||
}
|
||
sel.mode = 1;
|
||
sel.ex = sel.bx = x2col(e->xbutton.x);
|
||
sel.ey = sel.by = y2row(e->xbutton.y);
|
||
} else if(e->xbutton.button == Button4) {
|
||
ttywrite("\031", 1);
|
||
} else if(e->xbutton.button == Button5) {
|
||
ttywrite("\005", 1);
|
||
}
|
||
}
|
||
|
||
void
|
||
selcopy(void) {
|
||
char *str, *ptr, *p;
|
||
int x, y, bufsize, is_selected = 0, size;
|
||
Glyph *gp, *last;
|
||
|
||
if(sel.bx == -1) {
|
||
str = NULL;
|
||
} else {
|
||
bufsize = (term.col+1) * (sel.e.y-sel.b.y+1) * UTF_SIZ;
|
||
ptr = str = xmalloc(bufsize);
|
||
|
||
/* append every set & selected glyph to the selection */
|
||
for(y = 0; y < term.row; y++) {
|
||
gp = &term.line[y][0];
|
||
last = gp + term.col;
|
||
|
||
while(--last >= gp && !(last->state & GLYPH_SET))
|
||
/* nothing */;
|
||
|
||
for(x = 0; gp <= last; x++, ++gp) {
|
||
if(!(is_selected = selected(x, y)))
|
||
continue;
|
||
|
||
p = (gp->state & GLYPH_SET) ? gp->c : " ";
|
||
size = utf8size(p);
|
||
memcpy(ptr, p, size);
|
||
ptr += size;
|
||
}
|
||
/* \n at the end of every selected line except for the last one */
|
||
if(is_selected && y < sel.e.y)
|
||
*ptr++ = '\n';
|
||
}
|
||
*ptr = 0;
|
||
}
|
||
xsetsel(str);
|
||
}
|
||
|
||
void
|
||
selnotify(XEvent *e) {
|
||
ulong nitems, ofs, rem;
|
||
int format;
|
||
uchar *data;
|
||
Atom type;
|
||
|
||
ofs = 0;
|
||
do {
|
||
if(XGetWindowProperty(xw.dpy, xw.win, XA_PRIMARY, ofs, BUFSIZ/4,
|
||
False, AnyPropertyType, &type, &format,
|
||
&nitems, &rem, &data)) {
|
||
fprintf(stderr, "Clipboard allocation failed\n");
|
||
return;
|
||
}
|
||
ttywrite((const char *) data, nitems * format / 8);
|
||
XFree(data);
|
||
/* number of 32-bit chunks returned */
|
||
ofs += nitems * format / 32;
|
||
} while(rem > 0);
|
||
}
|
||
|
||
void
|
||
selpaste(const Arg *dummy) {
|
||
XConvertSelection(xw.dpy, XA_PRIMARY, sel.xtarget, XA_PRIMARY,
|
||
xw.win, CurrentTime);
|
||
}
|
||
|
||
void selclear(XEvent *e) {
|
||
if(sel.bx == -1)
|
||
return;
|
||
sel.bx = -1;
|
||
tsetdirt(sel.b.y, sel.e.y);
|
||
}
|
||
|
||
void
|
||
selrequest(XEvent *e) {
|
||
XSelectionRequestEvent *xsre;
|
||
XSelectionEvent xev;
|
||
Atom xa_targets, string;
|
||
|
||
xsre = (XSelectionRequestEvent *) e;
|
||
xev.type = SelectionNotify;
|
||
xev.requestor = xsre->requestor;
|
||
xev.selection = xsre->selection;
|
||
xev.target = xsre->target;
|
||
xev.time = xsre->time;
|
||
/* reject */
|
||
xev.property = None;
|
||
|
||
xa_targets = XInternAtom(xw.dpy, "TARGETS", 0);
|
||
if(xsre->target == xa_targets) {
|
||
/* respond with the supported type */
|
||
string = sel.xtarget;
|
||
XChangeProperty(xsre->display, xsre->requestor, xsre->property,
|
||
XA_ATOM, 32, PropModeReplace,
|
||
(uchar *) &string, 1);
|
||
xev.property = xsre->property;
|
||
} else if(xsre->target == sel.xtarget && sel.clip != NULL) {
|
||
XChangeProperty(xsre->display, xsre->requestor, xsre->property,
|
||
xsre->target, 8, PropModeReplace,
|
||
(uchar *) sel.clip, strlen(sel.clip));
|
||
xev.property = xsre->property;
|
||
}
|
||
|
||
/* all done, send a notification to the listener */
|
||
if(!XSendEvent(xsre->display, xsre->requestor, True, 0, (XEvent *) &xev))
|
||
fprintf(stderr, "Error sending SelectionNotify event\n");
|
||
}
|
||
|
||
void
|
||
xsetsel(char *str) {
|
||
/* register the selection for both the clipboard and the primary */
|
||
Atom clipboard;
|
||
|
||
free(sel.clip);
|
||
sel.clip = str;
|
||
|
||
XSetSelectionOwner(xw.dpy, XA_PRIMARY, xw.win, CurrentTime);
|
||
|
||
clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0);
|
||
XSetSelectionOwner(xw.dpy, clipboard, xw.win, CurrentTime);
|
||
}
|
||
|
||
void
|
||
brelease(XEvent *e) {
|
||
struct timeval now;
|
||
|
||
if(IS_SET(MODE_MOUSE)) {
|
||
mousereport(e);
|
||
return;
|
||
}
|
||
|
||
if(e->xbutton.button == Button2) {
|
||
selpaste(NULL);
|
||
} else if(e->xbutton.button == Button1) {
|
||
sel.mode = 0;
|
||
getbuttoninfo(e);
|
||
term.dirty[sel.ey] = 1;
|
||
if(sel.bx == sel.ex && sel.by == sel.ey) {
|
||
sel.bx = -1;
|
||
gettimeofday(&now, NULL);
|
||
|
||
if(TIMEDIFF(now, sel.tclick2) <= tripleclicktimeout) {
|
||
/* triple click on the line */
|
||
sel.b.x = sel.bx = 0;
|
||
sel.e.x = sel.ex = term.col;
|
||
sel.b.y = sel.e.y = sel.ey;
|
||
selcopy();
|
||
} else if(TIMEDIFF(now, sel.tclick1) <= doubleclicktimeout) {
|
||
/* double click to select word */
|
||
sel.bx = sel.ex;
|
||
while(sel.bx > 0 && term.line[sel.ey][sel.bx-1].state & GLYPH_SET &&
|
||
term.line[sel.ey][sel.bx-1].c[0] != ' ') {
|
||
sel.bx--;
|
||
}
|
||
sel.b.x = sel.bx;
|
||
while(sel.ex < term.col-1 && term.line[sel.ey][sel.ex+1].state & GLYPH_SET &&
|
||
term.line[sel.ey][sel.ex+1].c[0] != ' ') {
|
||
sel.ex++;
|
||
}
|
||
sel.e.x = sel.ex;
|
||
sel.b.y = sel.e.y = sel.ey;
|
||
selcopy();
|
||
}
|
||
} else {
|
||
selcopy();
|
||
}
|
||
}
|
||
|
||
memcpy(&sel.tclick2, &sel.tclick1, sizeof(struct timeval));
|
||
gettimeofday(&sel.tclick1, NULL);
|
||
}
|
||
|
||
void
|
||
bmotion(XEvent *e) {
|
||
int starty, endy, oldey, oldex;
|
||
|
||
if(IS_SET(MODE_MOUSE)) {
|
||
mousereport(e);
|
||
return;
|
||
}
|
||
|
||
if(!sel.mode)
|
||
return;
|
||
|
||
oldey = sel.ey;
|
||
oldex = sel.ex;
|
||
getbuttoninfo(e);
|
||
|
||
if(oldey != sel.ey || oldex != sel.ex) {
|
||
starty = MIN(oldey, sel.ey);
|
||
endy = MAX(oldey, sel.ey);
|
||
tsetdirt(starty, endy);
|
||
}
|
||
}
|
||
|
||
void
|
||
die(const char *errstr, ...) {
|
||
va_list ap;
|
||
|
||
va_start(ap, errstr);
|
||
vfprintf(stderr, errstr, ap);
|
||
va_end(ap);
|
||
exit(EXIT_FAILURE);
|
||
}
|
||
|
||
void
|
||
execsh(void) {
|
||
char **args;
|
||
char *envshell = getenv("SHELL");
|
||
const struct passwd *pass = getpwuid(getuid());
|
||
char buf[sizeof(long) * 8 + 1];
|
||
|
||
unsetenv("COLUMNS");
|
||
unsetenv("LINES");
|
||
unsetenv("TERMCAP");
|
||
|
||
if(pass) {
|
||
setenv("LOGNAME", pass->pw_name, 1);
|
||
setenv("USER", pass->pw_name, 1);
|
||
setenv("SHELL", pass->pw_shell, 0);
|
||
setenv("HOME", pass->pw_dir, 0);
|
||
}
|
||
|
||
snprintf(buf, sizeof(buf), "%lu", xw.win);
|
||
setenv("WINDOWID", buf, 1);
|
||
|
||
signal(SIGCHLD, SIG_DFL);
|
||
signal(SIGHUP, SIG_DFL);
|
||
signal(SIGINT, SIG_DFL);
|
||
signal(SIGQUIT, SIG_DFL);
|
||
signal(SIGTERM, SIG_DFL);
|
||
signal(SIGALRM, SIG_DFL);
|
||
|
||
DEFAULT(envshell, shell);
|
||
setenv("TERM", termname, 1);
|
||
args = opt_cmd ? opt_cmd : (char *[]){envshell, "-i", NULL};
|
||
execvp(args[0], args);
|
||
exit(EXIT_FAILURE);
|
||
}
|
||
|
||
void
|
||
sigchld(int a) {
|
||
int stat = 0;
|
||
|
||
if(waitpid(pid, &stat, 0) < 0)
|
||
die("Waiting for pid %hd failed: %s\n", pid, SERRNO);
|
||
|
||
if(WIFEXITED(stat)) {
|
||
exit(WEXITSTATUS(stat));
|
||
} else {
|
||
exit(EXIT_FAILURE);
|
||
}
|
||
}
|
||
|
||
void
|
||
ttynew(void) {
|
||
int m, s;
|
||
struct winsize w = {term.row, term.col, 0, 0};
|
||
|
||
/* seems to work fine on linux, openbsd and freebsd */
|
||
if(openpty(&m, &s, NULL, NULL, &w) < 0)
|
||
die("openpty failed: %s\n", SERRNO);
|
||
|
||
switch(pid = fork()) {
|
||
case -1:
|
||
die("fork failed\n");
|
||
break;
|
||
case 0:
|
||
setsid(); /* create a new process group */
|
||
dup2(s, STDIN_FILENO);
|
||
dup2(s, STDOUT_FILENO);
|
||
dup2(s, STDERR_FILENO);
|
||
if(ioctl(s, TIOCSCTTY, NULL) < 0)
|
||
die("ioctl TIOCSCTTY failed: %s\n", SERRNO);
|
||
close(s);
|
||
close(m);
|
||
execsh();
|
||
break;
|
||
default:
|
||
close(s);
|
||
cmdfd = m;
|
||
signal(SIGCHLD, sigchld);
|
||
if(opt_io) {
|
||
iofd = (!strcmp(opt_io, "-")) ?
|
||
STDOUT_FILENO :
|
||
open(opt_io, O_WRONLY | O_CREAT, 0666);
|
||
if(iofd < 0) {
|
||
fprintf(stderr, "Error opening %s:%s\n",
|
||
opt_io, strerror(errno));
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
void
|
||
dump(char c) {
|
||
static int col;
|
||
|
||
fprintf(stderr, " %02x '%c' ", c, isprint(c)?c:'.');
|
||
if(++col % 10 == 0)
|
||
fprintf(stderr, "\n");
|
||
}
|
||
|
||
void
|
||
ttyread(void) {
|
||
static char buf[BUFSIZ];
|
||
static int buflen = 0;
|
||
char *ptr;
|
||
char s[UTF_SIZ];
|
||
int charsize; /* size of utf8 char in bytes */
|
||
long utf8c;
|
||
int ret;
|
||
|
||
/* append read bytes to unprocessed bytes */
|
||
if((ret = read(cmdfd, buf+buflen, LEN(buf)-buflen)) < 0)
|
||
die("Couldn't read from shell: %s\n", SERRNO);
|
||
|
||
/* process every complete utf8 char */
|
||
buflen += ret;
|
||
ptr = buf;
|
||
while(buflen >= UTF_SIZ || isfullutf8(ptr,buflen)) {
|
||
charsize = utf8decode(ptr, &utf8c);
|
||
utf8encode(&utf8c, s);
|
||
tputc(s, charsize);
|
||
ptr += charsize;
|
||
buflen -= charsize;
|
||
}
|
||
|
||
/* keep any uncomplete utf8 char for the next call */
|
||
memmove(buf, ptr, buflen);
|
||
}
|
||
|
||
void
|
||
ttywrite(const char *s, size_t n) {
|
||
if(write(cmdfd, s, n) == -1)
|
||
die("write error on tty: %s\n", SERRNO);
|
||
}
|
||
|
||
void
|
||
ttyresize(void) {
|
||
struct winsize w;
|
||
|
||
w.ws_row = term.row;
|
||
w.ws_col = term.col;
|
||
w.ws_xpixel = xw.tw;
|
||
w.ws_ypixel = xw.th;
|
||
if(ioctl(cmdfd, TIOCSWINSZ, &w) < 0)
|
||
fprintf(stderr, "Couldn't set window size: %s\n", SERRNO);
|
||
}
|
||
|
||
void
|
||
tsetdirt(int top, int bot) {
|
||
int i;
|
||
|
||
LIMIT(top, 0, term.row-1);
|
||
LIMIT(bot, 0, term.row-1);
|
||
|
||
for(i = top; i <= bot; i++)
|
||
term.dirty[i] = 1;
|
||
}
|
||
|
||
void
|
||
tfulldirt(void) {
|
||
tsetdirt(0, term.row-1);
|
||
}
|
||
|
||
void
|
||
tcursor(int mode) {
|
||
static TCursor c;
|
||
|
||
if(mode == CURSOR_SAVE) {
|
||
c = term.c;
|
||
} else if(mode == CURSOR_LOAD) {
|
||
term.c = c;
|
||
tmoveto(c.x, c.y);
|
||
}
|
||
}
|
||
|
||
void
|
||
treset(void) {
|
||
uint i;
|
||
|
||
term.c = (TCursor){{
|
||
.mode = ATTR_NULL,
|
||
.fg = defaultfg,
|
||
.bg = defaultbg
|
||
}, .x = 0, .y = 0, .state = CURSOR_DEFAULT};
|
||
|
||
memset(term.tabs, 0, term.col * sizeof(*term.tabs));
|
||
for(i = tabspaces; i < term.col; i += tabspaces)
|
||
term.tabs[i] = 1;
|
||
term.top = 0;
|
||
term.bot = term.row - 1;
|
||
term.mode = MODE_WRAP;
|
||
|
||
tclearregion(0, 0, term.col-1, term.row-1);
|
||
tmoveto(0, 0);
|
||
tcursor(CURSOR_SAVE);
|
||
}
|
||
|
||
void
|
||
tnew(int col, int row) {
|
||
/* set screen size */
|
||
term.row = row;
|
||
term.col = col;
|
||
term.line = xmalloc(term.row * sizeof(Line));
|
||
term.alt = xmalloc(term.row * sizeof(Line));
|
||
term.dirty = xmalloc(term.row * sizeof(*term.dirty));
|
||
term.tabs = xmalloc(term.col * sizeof(*term.tabs));
|
||
|
||
for(row = 0; row < term.row; row++) {
|
||
term.line[row] = xmalloc(term.col * sizeof(Glyph));
|
||
term.alt [row] = xmalloc(term.col * sizeof(Glyph));
|
||
term.dirty[row] = 0;
|
||
}
|
||
|
||
term.numlock = 1;
|
||
memset(term.tabs, 0, term.col * sizeof(*term.tabs));
|
||
/* setup screen */
|
||
treset();
|
||
}
|
||
|
||
void
|
||
tswapscreen(void) {
|
||
Line *tmp = term.line;
|
||
|
||
term.line = term.alt;
|
||
term.alt = tmp;
|
||
term.mode ^= MODE_ALTSCREEN;
|
||
tfulldirt();
|
||
}
|
||
|
||
void
|
||
tscrolldown(int orig, int n) {
|
||
int i;
|
||
Line temp;
|
||
|
||
LIMIT(n, 0, term.bot-orig+1);
|
||
|
||
tclearregion(0, term.bot-n+1, term.col-1, term.bot);
|
||
|
||
for(i = term.bot; i >= orig+n; i--) {
|
||
temp = term.line[i];
|
||
term.line[i] = term.line[i-n];
|
||
term.line[i-n] = temp;
|
||
|
||
term.dirty[i] = 1;
|
||
term.dirty[i-n] = 1;
|
||
}
|
||
|
||
selscroll(orig, n);
|
||
}
|
||
|
||
void
|
||
tscrollup(int orig, int n) {
|
||
int i;
|
||
Line temp;
|
||
LIMIT(n, 0, term.bot-orig+1);
|
||
|
||
tclearregion(0, orig, term.col-1, orig+n-1);
|
||
|
||
for(i = orig; i <= term.bot-n; i++) {
|
||
temp = term.line[i];
|
||
term.line[i] = term.line[i+n];
|
||
term.line[i+n] = temp;
|
||
|
||
term.dirty[i] = 1;
|
||
term.dirty[i+n] = 1;
|
||
}
|
||
|
||
selscroll(orig, -n);
|
||
}
|
||
|
||
void
|
||
selscroll(int orig, int n) {
|
||
if(sel.bx == -1)
|
||
return;
|
||
|
||
if(BETWEEN(sel.by, orig, term.bot) || BETWEEN(sel.ey, orig, term.bot)) {
|
||
if((sel.by += n) > term.bot || (sel.ey += n) < term.top) {
|
||
sel.bx = -1;
|
||
return;
|
||
}
|
||
if(sel.by < term.top) {
|
||
sel.by = term.top;
|
||
sel.bx = 0;
|
||
}
|
||
if(sel.ey > term.bot) {
|
||
sel.ey = term.bot;
|
||
sel.ex = term.col;
|
||
}
|
||
sel.b.y = sel.by, sel.b.x = sel.bx;
|
||
sel.e.y = sel.ey, sel.e.x = sel.ex;
|
||
}
|
||
}
|
||
|
||
void
|
||
tnewline(int first_col) {
|
||
int y = term.c.y;
|
||
|
||
if(y == term.bot) {
|
||
tscrollup(term.top, 1);
|
||
} else {
|
||
y++;
|
||
}
|
||
tmoveto(first_col ? 0 : term.c.x, y);
|
||
}
|
||
|
||
void
|
||
csiparse(void) {
|
||
/* int noarg = 1; */
|
||
char *p = csiescseq.buf;
|
||
|
||
csiescseq.narg = 0;
|
||
if(*p == '?')
|
||
csiescseq.priv = 1, p++;
|
||
|
||
while(p < csiescseq.buf+csiescseq.len) {
|
||
while(isdigit(*p)) {
|
||
csiescseq.arg[csiescseq.narg] *= 10;
|
||
csiescseq.arg[csiescseq.narg] += *p++ - '0'/*, noarg = 0 */;
|
||
}
|
||
if(*p == ';' && csiescseq.narg+1 < ESC_ARG_SIZ) {
|
||
csiescseq.narg++, p++;
|
||
} else {
|
||
csiescseq.mode = *p;
|
||
csiescseq.narg++;
|
||
|
||
return;
|
||
}
|
||
}
|
||
}
|
||
|
||
/* for absolute user moves, when decom is set */
|
||
void
|
||
tmoveato(int x, int y) {
|
||
tmoveto(x, y + ((term.c.state & CURSOR_ORIGIN) ? term.top: 0));
|
||
}
|
||
|
||
void
|
||
tmoveto(int x, int y) {
|
||
int miny, maxy;
|
||
|
||
if(term.c.state & CURSOR_ORIGIN) {
|
||
miny = term.top;
|
||
maxy = term.bot;
|
||
} else {
|
||
miny = 0;
|
||
maxy = term.row - 1;
|
||
}
|
||
LIMIT(x, 0, term.col-1);
|
||
LIMIT(y, miny, maxy);
|
||
term.c.state &= ~CURSOR_WRAPNEXT;
|
||
term.c.x = x;
|
||
term.c.y = y;
|
||
}
|
||
|
||
void
|
||
tsetchar(char *c, Glyph *attr, int x, int y) {
|
||
static char *vt100_0[62] = { /* 0x41 - 0x7e */
|
||
"↑", "↓", "→", "←", "█", "▚", "☃", /* A - G */
|
||
0, 0, 0, 0, 0, 0, 0, 0, /* H - O */
|
||
0, 0, 0, 0, 0, 0, 0, 0, /* P - W */
|
||
0, 0, 0, 0, 0, 0, 0, " ", /* X - _ */
|
||
"◆", "▒", "␉", "␌", "␍", "␊", "°", "±", /* ` - g */
|
||
"", "␋", "┘", "┐", "┌", "└", "┼", "⎺", /* h - o */
|
||
"⎻", "─", "⎼", "⎽", "├", "┤", "┴", "┬", /* p - w */
|
||
"│", "≤", "≥", "π", "≠", "£", "·", /* x - ~ */
|
||
};
|
||
|
||
/*
|
||
* The table is proudly stolen from rxvt.
|
||
*/
|
||
if(attr->mode & ATTR_GFX) {
|
||
if(c[0] >= 0x41 && c[0] <= 0x7e
|
||
&& vt100_0[c[0] - 0x41]) {
|
||
c = vt100_0[c[0] - 0x41];
|
||
}
|
||
}
|
||
|
||
term.dirty[y] = 1;
|
||
term.line[y][x] = *attr;
|
||
memcpy(term.line[y][x].c, c, UTF_SIZ);
|
||
term.line[y][x].state |= GLYPH_SET;
|
||
}
|
||
|
||
void
|
||
tclearregion(int x1, int y1, int x2, int y2) {
|
||
int x, y, temp;
|
||
|
||
if(x1 > x2)
|
||
temp = x1, x1 = x2, x2 = temp;
|
||
if(y1 > y2)
|
||
temp = y1, y1 = y2, y2 = temp;
|
||
|
||
LIMIT(x1, 0, term.col-1);
|
||
LIMIT(x2, 0, term.col-1);
|
||
LIMIT(y1, 0, term.row-1);
|
||
LIMIT(y2, 0, term.row-1);
|
||
|
||
for(y = y1; y <= y2; y++) {
|
||
term.dirty[y] = 1;
|
||
for(x = x1; x <= x2; x++)
|
||
term.line[y][x].state = 0;
|
||
}
|
||
}
|
||
|
||
void
|
||
tdeletechar(int n) {
|
||
int src = term.c.x + n;
|
||
int dst = term.c.x;
|
||
int size = term.col - src;
|
||
|
||
term.dirty[term.c.y] = 1;
|
||
|
||
if(src >= term.col) {
|
||
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
|
||
return;
|
||
}
|
||
|
||
memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src],
|
||
size * sizeof(Glyph));
|
||
tclearregion(term.col-n, term.c.y, term.col-1, term.c.y);
|
||
}
|
||
|
||
void
|
||
tinsertblank(int n) {
|
||
int src = term.c.x;
|
||
int dst = src + n;
|
||
int size = term.col - dst;
|
||
|
||
term.dirty[term.c.y] = 1;
|
||
|
||
if(dst >= term.col) {
|
||
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
|
||
return;
|
||
}
|
||
|
||
memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src],
|
||
size * sizeof(Glyph));
|
||
tclearregion(src, term.c.y, dst - 1, term.c.y);
|
||
}
|
||
|
||
void
|
||
tinsertblankline(int n) {
|
||
if(term.c.y < term.top || term.c.y > term.bot)
|
||
return;
|
||
|
||
tscrolldown(term.c.y, n);
|
||
}
|
||
|
||
void
|
||
tdeleteline(int n) {
|
||
if(term.c.y < term.top || term.c.y > term.bot)
|
||
return;
|
||
|
||
tscrollup(term.c.y, n);
|
||
}
|
||
|
||
void
|
||
tsetattr(int *attr, int l) {
|
||
int i;
|
||
|
||
for(i = 0; i < l; i++) {
|
||
switch(attr[i]) {
|
||
case 0:
|
||
term.c.attr.mode &= ~(ATTR_REVERSE | ATTR_UNDERLINE | ATTR_BOLD \
|
||
| ATTR_ITALIC | ATTR_BLINK);
|
||
term.c.attr.fg = defaultfg;
|
||
term.c.attr.bg = defaultbg;
|
||
break;
|
||
case 1:
|
||
term.c.attr.mode |= ATTR_BOLD;
|
||
break;
|
||
case 3:
|
||
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:
|
||
term.c.attr.mode &= ~ATTR_ITALIC;
|
||
break;
|
||
case 24:
|
||
term.c.attr.mode &= ~ATTR_UNDERLINE;
|
||
break;
|
||
case 25:
|
||
term.c.attr.mode &= ~ATTR_BLINK;
|
||
break;
|
||
case 27:
|
||
term.c.attr.mode &= ~ATTR_REVERSE;
|
||
break;
|
||
case 38:
|
||
if(i + 2 < l && attr[i + 1] == 5) {
|
||
i += 2;
|
||
if(BETWEEN(attr[i], 0, 255)) {
|
||
term.c.attr.fg = attr[i];
|
||
} else {
|
||
fprintf(stderr,
|
||
"erresc: bad fgcolor %d\n",
|
||
attr[i]);
|
||
}
|
||
} else {
|
||
fprintf(stderr,
|
||
"erresc(38): gfx attr %d unknown\n",
|
||
attr[i]);
|
||
}
|
||
break;
|
||
case 39:
|
||
term.c.attr.fg = defaultfg;
|
||
break;
|
||
case 48:
|
||
if(i + 2 < l && attr[i + 1] == 5) {
|
||
i += 2;
|
||
if(BETWEEN(attr[i], 0, 255)) {
|
||
term.c.attr.bg = attr[i];
|
||
} else {
|
||
fprintf(stderr,
|
||
"erresc: bad bgcolor %d\n",
|
||
attr[i]);
|
||
}
|
||
} else {
|
||
fprintf(stderr,
|
||
"erresc(48): gfx attr %d unknown\n",
|
||
attr[i]);
|
||
}
|
||
break;
|
||
case 49:
|
||
term.c.attr.bg = defaultbg;
|
||
break;
|
||
default:
|
||
if(BETWEEN(attr[i], 30, 37)) {
|
||
term.c.attr.fg = attr[i] - 30;
|
||
} else if(BETWEEN(attr[i], 40, 47)) {
|
||
term.c.attr.bg = attr[i] - 40;
|
||
} else if(BETWEEN(attr[i], 90, 97)) {
|
||
term.c.attr.fg = attr[i] - 90 + 8;
|
||
} else if(BETWEEN(attr[i], 100, 107)) {
|
||
term.c.attr.bg = attr[i] - 100 + 8;
|
||
} else {
|
||
fprintf(stderr,
|
||
"erresc(default): gfx attr %d unknown\n",
|
||
attr[i]), csidump();
|
||
}
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
void
|
||
tsetscroll(int t, int b) {
|
||
int temp;
|
||
|
||
LIMIT(t, 0, term.row-1);
|
||
LIMIT(b, 0, term.row-1);
|
||
if(t > b) {
|
||
temp = t;
|
||
t = b;
|
||
b = temp;
|
||
}
|
||
term.top = t;
|
||
term.bot = b;
|
||
}
|
||
|
||
#define MODBIT(x, set, bit) ((set) ? ((x) |= (bit)) : ((x) &= ~(bit)))
|
||
|
||
void
|
||
tsetmode(bool priv, bool set, int *args, int narg) {
|
||
int *lim, mode;
|
||
bool alt;
|
||
|
||
for(lim = args + narg; args < lim; ++args) {
|
||
if(priv) {
|
||
switch(*args) {
|
||
break;
|
||
case 1: /* DECCKM -- Cursor key */
|
||
MODBIT(term.mode, set, MODE_APPCURSOR);
|
||
break;
|
||
case 5: /* DECSCNM -- Reverse video */
|
||
mode = term.mode;
|
||
MODBIT(term.mode, set, MODE_REVERSE);
|
||
if(mode != term.mode)
|
||
redraw(REDRAW_TIMEOUT);
|
||
break;
|
||
case 6: /* DECOM -- Origin */
|
||
MODBIT(term.c.state, set, CURSOR_ORIGIN);
|
||
tmoveato(0, 0);
|
||
break;
|
||
case 7: /* DECAWM -- Auto wrap */
|
||
MODBIT(term.mode, set, MODE_WRAP);
|
||
break;
|
||
case 0: /* Error (IGNORED) */
|
||
case 2: /* DECANM -- ANSI/VT52 (IGNORED) */
|
||
case 3: /* DECCOLM -- Column (IGNORED) */
|
||
case 4: /* DECSCLM -- Scroll (IGNORED) */
|
||
case 8: /* DECARM -- Auto repeat (IGNORED) */
|
||
case 18: /* DECPFF -- Printer feed (IGNORED) */
|
||
case 19: /* DECPEX -- Printer extent (IGNORED) */
|
||
case 42: /* DECNRCM -- National characters (IGNORED) */
|
||
case 12: /* att610 -- Start blinking cursor (IGNORED) */
|
||
break;
|
||
case 25: /* DECTCEM -- Text Cursor Enable Mode */
|
||
MODBIT(term.mode, !set, MODE_HIDE);
|
||
break;
|
||
case 1000: /* 1000,1002: enable xterm mouse report */
|
||
MODBIT(term.mode, set, MODE_MOUSEBTN);
|
||
break;
|
||
case 1002:
|
||
MODBIT(term.mode, set, MODE_MOUSEMOTION);
|
||
break;
|
||
case 1049: /* = 1047 and 1048 */
|
||
case 47:
|
||
case 1047: {
|
||
alt = IS_SET(MODE_ALTSCREEN);
|
||
if(alt)
|
||
tclearregion(0, 0, term.col-1, term.row-1);
|
||
if(set ^ alt) /* set is always 1 or 0 */
|
||
tswapscreen();
|
||
if(*args != 1049)
|
||
break;
|
||
}
|
||
/* pass through */
|
||
case 1048:
|
||
tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD);
|
||
break;
|
||
default:
|
||
fprintf(stderr,
|
||
"erresc: unknown private set/reset mode %d\n",
|
||
*args);
|
||
break;
|
||
}
|
||
} else {
|
||
switch(*args) {
|
||
case 0: /* Error (IGNORED) */
|
||
break;
|
||
case 2: /* KAM -- keyboard action */
|
||
MODBIT(term.mode, set, MODE_KBDLOCK);
|
||
break;
|
||
case 4: /* IRM -- Insertion-replacement */
|
||
MODBIT(term.mode, set, MODE_INSERT);
|
||
break;
|
||
case 12: /* SRM -- Send/Receive */
|
||
MODBIT(term.mode, !set, MODE_ECHO);
|
||
break;
|
||
case 20: /* LNM -- Linefeed/new line */
|
||
MODBIT(term.mode, set, MODE_CRLF);
|
||
break;
|
||
default:
|
||
fprintf(stderr,
|
||
"erresc: unknown set/reset mode %d\n",
|
||
*args);
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
#undef MODBIT
|
||
|
||
|
||
void
|
||
csihandle(void) {
|
||
switch(csiescseq.mode) {
|
||
default:
|
||
unknown:
|
||
fprintf(stderr, "erresc: unknown csi ");
|
||
csidump();
|
||
/* die(""); */
|
||
break;
|
||
case '@': /* ICH -- Insert <n> blank char */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tinsertblank(csiescseq.arg[0]);
|
||
break;
|
||
case 'A': /* CUU -- Cursor <n> Up */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tmoveto(term.c.x, term.c.y-csiescseq.arg[0]);
|
||
break;
|
||
case 'B': /* CUD -- Cursor <n> Down */
|
||
case 'e': /* VPR --Cursor <n> Down */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tmoveto(term.c.x, term.c.y+csiescseq.arg[0]);
|
||
break;
|
||
case 'c': /* DA -- Device Attributes */
|
||
if(csiescseq.arg[0] == 0)
|
||
ttywrite(VT102ID, sizeof(VT102ID) - 1);
|
||
break;
|
||
case 'C': /* CUF -- Cursor <n> Forward */
|
||
case 'a': /* HPR -- Cursor <n> Forward */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tmoveto(term.c.x+csiescseq.arg[0], term.c.y);
|
||
break;
|
||
case 'D': /* CUB -- Cursor <n> Backward */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tmoveto(term.c.x-csiescseq.arg[0], term.c.y);
|
||
break;
|
||
case 'E': /* CNL -- Cursor <n> Down and first col */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tmoveto(0, term.c.y+csiescseq.arg[0]);
|
||
break;
|
||
case 'F': /* CPL -- Cursor <n> Up and first col */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tmoveto(0, term.c.y-csiescseq.arg[0]);
|
||
break;
|
||
case 'g': /* TBC -- Tabulation clear */
|
||
switch (csiescseq.arg[0]) {
|
||
case 0: /* clear current tab stop */
|
||
term.tabs[term.c.x] = 0;
|
||
break;
|
||
case 3: /* clear all the tabs */
|
||
memset(term.tabs, 0, term.col * sizeof(*term.tabs));
|
||
break;
|
||
default:
|
||
goto unknown;
|
||
}
|
||
break;
|
||
case 'G': /* CHA -- Move to <col> */
|
||
case '`': /* HPA */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tmoveto(csiescseq.arg[0]-1, term.c.y);
|
||
break;
|
||
case 'H': /* CUP -- Move to <row> <col> */
|
||
case 'f': /* HVP */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
DEFAULT(csiescseq.arg[1], 1);
|
||
tmoveato(csiescseq.arg[1]-1, csiescseq.arg[0]-1);
|
||
break;
|
||
case 'I': /* CHT -- Cursor Forward Tabulation <n> tab stops */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
while(csiescseq.arg[0]--)
|
||
tputtab(1);
|
||
break;
|
||
case 'J': /* ED -- Clear screen */
|
||
sel.bx = -1;
|
||
switch(csiescseq.arg[0]) {
|
||
case 0: /* below */
|
||
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
|
||
if(term.c.y < term.row-1)
|
||
tclearregion(0, term.c.y+1, term.col-1, term.row-1);
|
||
break;
|
||
case 1: /* above */
|
||
if(term.c.y > 1)
|
||
tclearregion(0, 0, term.col-1, term.c.y-1);
|
||
tclearregion(0, term.c.y, term.c.x, term.c.y);
|
||
break;
|
||
case 2: /* all */
|
||
tclearregion(0, 0, term.col-1, term.row-1);
|
||
break;
|
||
default:
|
||
goto unknown;
|
||
}
|
||
break;
|
||
case 'K': /* EL -- Clear line */
|
||
switch(csiescseq.arg[0]) {
|
||
case 0: /* right */
|
||
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y);
|
||
break;
|
||
case 1: /* left */
|
||
tclearregion(0, term.c.y, term.c.x, term.c.y);
|
||
break;
|
||
case 2: /* all */
|
||
tclearregion(0, term.c.y, term.col-1, term.c.y);
|
||
break;
|
||
}
|
||
break;
|
||
case 'S': /* SU -- Scroll <n> line up */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tscrollup(term.top, csiescseq.arg[0]);
|
||
break;
|
||
case 'T': /* SD -- Scroll <n> line down */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tscrolldown(term.top, csiescseq.arg[0]);
|
||
break;
|
||
case 'L': /* IL -- Insert <n> blank lines */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tinsertblankline(csiescseq.arg[0]);
|
||
break;
|
||
case 'l': /* RM -- Reset Mode */
|
||
tsetmode(csiescseq.priv, 0, csiescseq.arg, csiescseq.narg);
|
||
break;
|
||
case 'M': /* DL -- Delete <n> lines */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tdeleteline(csiescseq.arg[0]);
|
||
break;
|
||
case 'X': /* ECH -- Erase <n> char */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tclearregion(term.c.x, term.c.y, term.c.x + csiescseq.arg[0], term.c.y);
|
||
break;
|
||
case 'P': /* DCH -- Delete <n> char */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tdeletechar(csiescseq.arg[0]);
|
||
break;
|
||
case 'Z': /* CBT -- Cursor Backward Tabulation <n> tab stops */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
while(csiescseq.arg[0]--)
|
||
tputtab(0);
|
||
break;
|
||
case 'd': /* VPA -- Move to <row> */
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
tmoveato(term.c.x, csiescseq.arg[0]-1);
|
||
break;
|
||
case 'h': /* SM -- Set terminal mode */
|
||
tsetmode(csiescseq.priv, 1, csiescseq.arg, csiescseq.narg);
|
||
break;
|
||
case 'm': /* SGR -- Terminal attribute (color) */
|
||
tsetattr(csiescseq.arg, csiescseq.narg);
|
||
break;
|
||
case 'r': /* DECSTBM -- Set Scrolling Region */
|
||
if(csiescseq.priv) {
|
||
goto unknown;
|
||
} else {
|
||
DEFAULT(csiescseq.arg[0], 1);
|
||
DEFAULT(csiescseq.arg[1], term.row);
|
||
tsetscroll(csiescseq.arg[0]-1, csiescseq.arg[1]-1);
|
||
tmoveato(0, 0);
|
||
}
|
||
break;
|
||
case 's': /* DECSC -- Save cursor position (ANSI.SYS) */
|
||
tcursor(CURSOR_SAVE);
|
||
break;
|
||
case 'u': /* DECRC -- Restore cursor position (ANSI.SYS) */
|
||
tcursor(CURSOR_LOAD);
|
||
break;
|
||
}
|
||
}
|
||
|
||
void
|
||
csidump(void) {
|
||
int i;
|
||
uint c;
|
||
|
||
printf("ESC[");
|
||
for(i = 0; i < csiescseq.len; i++) {
|
||
c = csiescseq.buf[i] & 0xff;
|
||
if(isprint(c)) {
|
||
putchar(c);
|
||
} else if(c == '\n') {
|
||
printf("(\\n)");
|
||
} else if(c == '\r') {
|
||
printf("(\\r)");
|
||
} else if(c == 0x1b) {
|
||
printf("(\\e)");
|
||
} else {
|
||
printf("(%02x)", c);
|
||
}
|
||
}
|
||
putchar('\n');
|
||
}
|
||
|
||
void
|
||
csireset(void) {
|
||
memset(&csiescseq, 0, sizeof(csiescseq));
|
||
}
|
||
|
||
void
|
||
strhandle(void) {
|
||
char *p;
|
||
|
||
/*
|
||
* TODO: make this being useful in case of color palette change.
|
||
*/
|
||
strparse();
|
||
|
||
p = strescseq.buf;
|
||
|
||
switch(strescseq.type) {
|
||
case ']': /* OSC -- Operating System Command */
|
||
switch(p[0]) {
|
||
case '0':
|
||
case '1':
|
||
case '2':
|
||
/*
|
||
* TODO: Handle special chars in string, like umlauts.
|
||
*/
|
||
if(p[1] == ';') {
|
||
XStoreName(xw.dpy, xw.win, strescseq.buf+2);
|
||
}
|
||
break;
|
||
case ';':
|
||
XStoreName(xw.dpy, xw.win, strescseq.buf+1);
|
||
break;
|
||
case '4': /* TODO: Set color (arg0) to "rgb:%hexr/$hexg/$hexb" (arg1) */
|
||
break;
|
||
default:
|
||
fprintf(stderr, "erresc: unknown str ");
|
||
strdump();
|
||
break;
|
||
}
|
||
break;
|
||
case 'k': /* old title set compatibility */
|
||
XStoreName(xw.dpy, xw.win, strescseq.buf);
|
||
break;
|
||
case 'P': /* DSC -- Device Control String */
|
||
case '_': /* APC -- Application Program Command */
|
||
case '^': /* PM -- Privacy Message */
|
||
default:
|
||
fprintf(stderr, "erresc: unknown str ");
|
||
strdump();
|
||
/* die(""); */
|
||
break;
|
||
}
|
||
}
|
||
|
||
void
|
||
strparse(void) {
|
||
/*
|
||
* TODO: Implement parsing like for CSI when required.
|
||
* Format: ESC type cmd ';' arg0 [';' argn] ESC \
|
||
*/
|
||
return;
|
||
}
|
||
|
||
void
|
||
strdump(void) {
|
||
int i;
|
||
uint c;
|
||
|
||
printf("ESC%c", strescseq.type);
|
||
for(i = 0; i < strescseq.len; i++) {
|
||
c = strescseq.buf[i] & 0xff;
|
||
if(isprint(c)) {
|
||
putchar(c);
|
||
} else if(c == '\n') {
|
||
printf("(\\n)");
|
||
} else if(c == '\r') {
|
||
printf("(\\r)");
|
||
} else if(c == 0x1b) {
|
||
printf("(\\e)");
|
||
} else {
|
||
printf("(%02x)", c);
|
||
}
|
||
}
|
||
printf("ESC\\\n");
|
||
}
|
||
|
||
void
|
||
strreset(void) {
|
||
memset(&strescseq, 0, sizeof(strescseq));
|
||
}
|
||
|
||
void
|
||
tputtab(bool forward) {
|
||
uint x = term.c.x;
|
||
|
||
if(forward) {
|
||
if(x == term.col)
|
||
return;
|
||
for(++x; x < term.col && !term.tabs[x]; ++x)
|
||
/* nothing */ ;
|
||
} else {
|
||
if(x == 0)
|
||
return;
|
||
for(--x; x > 0 && !term.tabs[x]; --x)
|
||
/* nothing */ ;
|
||
}
|
||
tmoveto(x, term.c.y);
|
||
}
|
||
|
||
void
|
||
techo(char *buf, int len) {
|
||
for(; len > 0; buf++, len--) {
|
||
char c = *buf;
|
||
|
||
if(c == '\033') { /* escape */
|
||
tputc("^", 1);
|
||
tputc("[", 1);
|
||
} else if (c < '\x20') { /* control code */
|
||
if(c != '\n' && c != '\r' && c != '\t') {
|
||
c |= '\x40';
|
||
tputc("^", 1);
|
||
}
|
||
tputc(&c, 1);
|
||
} else {
|
||
break;
|
||
}
|
||
}
|
||
if (len)
|
||
tputc(buf, len);
|
||
}
|
||
|
||
void
|
||
tputc(char *c, int len) {
|
||
uchar ascii = *c;
|
||
bool control = ascii < '\x20' || ascii == 0177;
|
||
|
||
if(iofd != -1) {
|
||
if (xwrite(iofd, c, len) < 0) {
|
||
fprintf(stderr, "Error writing in %s:%s\n",
|
||
opt_io, strerror(errno));
|
||
close(iofd);
|
||
iofd = -1;
|
||
}
|
||
}
|
||
|
||
/*
|
||
* STR sequences must be checked before anything else
|
||
* because it can use some control codes as part of the sequence.
|
||
*/
|
||
if(term.esc & ESC_STR) {
|
||
switch(ascii) {
|
||
case '\033':
|
||
term.esc = ESC_START | ESC_STR_END;
|
||
break;
|
||
case '\a': /* backwards compatibility to xterm */
|
||
term.esc = 0;
|
||
strhandle();
|
||
break;
|
||
default:
|
||
if(strescseq.len + len < sizeof(strescseq.buf)) {
|
||
memmove(&strescseq.buf[strescseq.len], c, len);
|
||
strescseq.len += len;
|
||
} else {
|
||
/*
|
||
* Here is a bug in terminals. If the user never sends
|
||
* some code to stop the str or esc command, then st
|
||
* will stop responding. But this is better than
|
||
* silently failing with unknown characters. At least
|
||
* then users will report back.
|
||
*
|
||
* In the case users ever get fixed, here is the code:
|
||
*/
|
||
/*
|
||
* term.esc = 0;
|
||
* strhandle();
|
||
*/
|
||
}
|
||
}
|
||
return;
|
||
}
|
||
|
||
/*
|
||
* Actions of control codes must be performed as soon they arrive
|
||
* because they can be embedded inside a control sequence, and
|
||
* they must not cause conflicts with sequences.
|
||
*/
|
||
if(control) {
|
||
switch(ascii) {
|
||
case '\t': /* HT */
|
||
tputtab(1);
|
||
return;
|
||
case '\b': /* BS */
|
||
tmoveto(term.c.x-1, term.c.y);
|
||
return;
|
||
case '\r': /* CR */
|
||
tmoveto(0, term.c.y);
|
||
return;
|
||
case '\f': /* LF */
|
||
case '\v': /* VT */
|
||
case '\n': /* LF */
|
||
/* go to first col if the mode is set */
|
||
tnewline(IS_SET(MODE_CRLF));
|
||
return;
|
||
case '\a': /* BEL */
|
||
if(!(xw.state & WIN_FOCUSED))
|
||
xseturgency(1);
|
||
return;
|
||
case '\033': /* ESC */
|
||
csireset();
|
||
term.esc = ESC_START;
|
||
return;
|
||
case '\016': /* SO */
|
||
case '\017': /* SI */
|
||
/*
|
||
* Different charsets are hard to handle. Applications
|
||
* should use the right alt charset escapes for the
|
||
* only reason they still exist: line drawing. The
|
||
* rest is incompatible history st should not support.
|
||
*/
|
||
return;
|
||
case '\032': /* SUB */
|
||
case '\030': /* CAN */
|
||
csireset();
|
||
return;
|
||
case '\005': /* ENQ (IGNORED) */
|
||
case '\000': /* NUL (IGNORED) */
|
||
case '\021': /* XON (IGNORED) */
|
||
case '\023': /* XOFF (IGNORED) */
|
||
case 0177: /* DEL (IGNORED) */
|
||
return;
|
||
}
|
||
} else if(term.esc & ESC_START) {
|
||
if(term.esc & ESC_CSI) {
|
||
csiescseq.buf[csiescseq.len++] = ascii;
|
||
if(BETWEEN(ascii, 0x40, 0x7E)
|
||
|| csiescseq.len >= ESC_BUF_SIZ) {
|
||
term.esc = 0;
|
||
csiparse(), csihandle();
|
||
}
|
||
} else if(term.esc & ESC_STR_END) {
|
||
term.esc = 0;
|
||
if(ascii == '\\')
|
||
strhandle();
|
||
} else if(term.esc & ESC_ALTCHARSET) {
|
||
switch(ascii) {
|
||
case '0': /* Line drawing set */
|
||
term.c.attr.mode |= ATTR_GFX;
|
||
break;
|
||
case 'B': /* USASCII */
|
||
term.c.attr.mode &= ~ATTR_GFX;
|
||
break;
|
||
case 'A': /* UK (IGNORED) */
|
||
case '<': /* multinational charset (IGNORED) */
|
||
case '5': /* Finnish (IGNORED) */
|
||
case 'C': /* Finnish (IGNORED) */
|
||
case 'K': /* German (IGNORED) */
|
||
break;
|
||
default:
|
||
fprintf(stderr, "esc unhandled charset: ESC ( %c\n", ascii);
|
||
}
|
||
term.esc = 0;
|
||
} else if(term.esc & ESC_TEST) {
|
||
if(ascii == '8') { /* DEC screen alignment test. */
|
||
char E[UTF_SIZ] = "E";
|
||
int x, y;
|
||
|
||
for(x = 0; x < term.col; ++x) {
|
||
for(y = 0; y < term.row; ++y)
|
||
tsetchar(E, &term.c.attr, x, y);
|
||
}
|
||
}
|
||
term.esc = 0;
|
||
} else {
|
||
switch(ascii) {
|
||
case '[':
|
||
term.esc |= ESC_CSI;
|
||
break;
|
||
case '#':
|
||
term.esc |= ESC_TEST;
|
||
break;
|
||
case 'P': /* DCS -- Device Control String */
|
||
case '_': /* APC -- Application Program Command */
|
||
case '^': /* PM -- Privacy Message */
|
||
case ']': /* OSC -- Operating System Command */
|
||
case 'k': /* old title set compatibility */
|
||
strreset();
|
||
strescseq.type = ascii;
|
||
term.esc |= ESC_STR;
|
||
break;
|
||
case '(': /* set primary charset G0 */
|
||
term.esc |= ESC_ALTCHARSET;
|
||
break;
|
||
case ')': /* set secondary charset G1 (IGNORED) */
|
||
case '*': /* set tertiary charset G2 (IGNORED) */
|
||
case '+': /* set quaternary charset G3 (IGNORED) */
|
||
term.esc = 0;
|
||
break;
|
||
case 'D': /* IND -- Linefeed */
|
||
if(term.c.y == term.bot) {
|
||
tscrollup(term.top, 1);
|
||
} else {
|
||
tmoveto(term.c.x, term.c.y+1);
|
||
}
|
||
term.esc = 0;
|
||
break;
|
||
case 'E': /* NEL -- Next line */
|
||
tnewline(1); /* always go to first col */
|
||
term.esc = 0;
|
||
break;
|
||
case 'H': /* HTS -- Horizontal tab stop */
|
||
term.tabs[term.c.x] = 1;
|
||
term.esc = 0;
|
||
break;
|
||
case 'M': /* RI -- Reverse index */
|
||
if(term.c.y == term.top) {
|
||
tscrolldown(term.top, 1);
|
||
} else {
|
||
tmoveto(term.c.x, term.c.y-1);
|
||
}
|
||
term.esc = 0;
|
||
break;
|
||
case 'Z': /* DECID -- Identify Terminal */
|
||
ttywrite(VT102ID, sizeof(VT102ID) - 1);
|
||
term.esc = 0;
|
||
break;
|
||
case 'c': /* RIS -- Reset to inital state */
|
||
treset();
|
||
term.esc = 0;
|
||
xresettitle();
|
||
break;
|
||
case '=': /* DECPAM -- Application keypad */
|
||
term.mode |= MODE_APPKEYPAD;
|
||
term.esc = 0;
|
||
break;
|
||
case '>': /* DECPNM -- Normal keypad */
|
||
term.mode &= ~MODE_APPKEYPAD;
|
||
term.esc = 0;
|
||
break;
|
||
case '7': /* DECSC -- Save Cursor */
|
||
tcursor(CURSOR_SAVE);
|
||
term.esc = 0;
|
||
break;
|
||
case '8': /* DECRC -- Restore Cursor */
|
||
tcursor(CURSOR_LOAD);
|
||
term.esc = 0;
|
||
break;
|
||
case '\\': /* ST -- Stop */
|
||
term.esc = 0;
|
||
break;
|
||
default:
|
||
fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n",
|
||
(uchar) ascii, isprint(ascii)? ascii:'.');
|
||
term.esc = 0;
|
||
}
|
||
}
|
||
/*
|
||
* All characters which form part of a sequence are not
|
||
* printed
|
||
*/
|
||
return;
|
||
}
|
||
/*
|
||
* Display control codes only if we are in graphic mode
|
||
*/
|
||
if(control && !(term.c.attr.mode & ATTR_GFX))
|
||
return;
|
||
if(sel.bx != -1 && BETWEEN(term.c.y, sel.by, sel.ey))
|
||
sel.bx = -1;
|
||
if(IS_SET(MODE_WRAP) && term.c.state & CURSOR_WRAPNEXT)
|
||
tnewline(1); /* always go to first col */
|
||
|
||
if(IS_SET(MODE_INSERT) && term.c.x+1 < term.col) {
|
||
memmove(&term.line[term.c.y][term.c.x+1],
|
||
&term.line[term.c.y][term.c.x],
|
||
(term.col - term.c.x - 1) * sizeof(Glyph));
|
||
}
|
||
|
||
tsetchar(c, &term.c.attr, term.c.x, term.c.y);
|
||
if(term.c.x+1 < term.col) {
|
||
tmoveto(term.c.x+1, term.c.y);
|
||
} else {
|
||
term.c.state |= CURSOR_WRAPNEXT;
|
||
}
|
||
}
|
||
|
||
int
|
||
tresize(int col, int row) {
|
||
int i, x;
|
||
int minrow = MIN(row, term.row);
|
||
int mincol = MIN(col, term.col);
|
||
int slide = term.c.y - row + 1;
|
||
bool *bp;
|
||
|
||
if(col < 1 || row < 1)
|
||
return 0;
|
||
|
||
/* free unneeded rows */
|
||
i = 0;
|
||
if(slide > 0) {
|
||
/* slide screen to keep cursor where we expect it -
|
||
* tscrollup would work here, but we can optimize to
|
||
* memmove because we're freeing the earlier lines */
|
||
for(/* i = 0 */; i < slide; i++) {
|
||
free(term.line[i]);
|
||
free(term.alt[i]);
|
||
}
|
||
memmove(term.line, term.line + slide, row * sizeof(Line));
|
||
memmove(term.alt, term.alt + slide, row * sizeof(Line));
|
||
}
|
||
for(i += row; i < term.row; i++) {
|
||
free(term.line[i]);
|
||
free(term.alt[i]);
|
||
}
|
||
|
||
/* resize to new height */
|
||
term.line = xrealloc(term.line, row * sizeof(Line));
|
||
term.alt = xrealloc(term.alt, row * sizeof(Line));
|
||
term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty));
|
||
term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs));
|
||
|
||
/* resize each row to new width, zero-pad if needed */
|
||
for(i = 0; i < minrow; i++) {
|
||
term.dirty[i] = 1;
|
||
term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph));
|
||
term.alt[i] = xrealloc(term.alt[i], col * sizeof(Glyph));
|
||
for(x = mincol; x < col; x++) {
|
||
term.line[i][x].state = 0;
|
||
term.alt[i][x].state = 0;
|
||
}
|
||
}
|
||
|
||
/* allocate any new rows */
|
||
for(/* i == minrow */; i < row; i++) {
|
||
term.dirty[i] = 1;
|
||
term.line[i] = xcalloc(col, sizeof(Glyph));
|
||
term.alt [i] = xcalloc(col, sizeof(Glyph));
|
||
}
|
||
if(col > term.col) {
|
||
bp = term.tabs + term.col;
|
||
|
||
memset(bp, 0, sizeof(*term.tabs) * (col - term.col));
|
||
while(--bp > term.tabs && !*bp)
|
||
/* nothing */ ;
|
||
for(bp += tabspaces; bp < term.tabs + col; bp += tabspaces)
|
||
*bp = 1;
|
||
}
|
||
/* update terminal size */
|
||
term.col = col;
|
||
term.row = row;
|
||
/* reset scrolling region */
|
||
tsetscroll(0, row-1);
|
||
/* make use of the LIMIT in tmoveto */
|
||
tmoveto(term.c.x, term.c.y);
|
||
|
||
return (slide > 0);
|
||
}
|
||
|
||
void
|
||
xresize(int col, int row) {
|
||
xw.tw = MAX(1, col * xw.cw);
|
||
xw.th = MAX(1, row * xw.ch);
|
||
|
||
if(!usedbe) {
|
||
XFreePixmap(xw.dpy, xw.buf);
|
||
xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.w, xw.h,
|
||
DefaultDepth(xw.dpy, xw.scr));
|
||
XSetForeground(xw.dpy, dc.gc, 0);
|
||
XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, xw.w, xw.h);
|
||
}
|
||
|
||
XftDrawChange(xw.draw, xw.buf);
|
||
}
|
||
|
||
void
|
||
xloadcols(void) {
|
||
int i, r, g, b;
|
||
XRenderColor color = { .alpha = 0 };
|
||
|
||
/* load colors [0-15] colors and [256-LEN(colorname)[ (config.h) */
|
||
for(i = 0; i < LEN(colorname); i++) {
|
||
if(!colorname[i])
|
||
continue;
|
||
if(!XftColorAllocName(xw.dpy, xw.vis, xw.cmap, colorname[i], &dc.col[i])) {
|
||
die("Could not allocate color '%s'\n", colorname[i]);
|
||
}
|
||
}
|
||
|
||
/* load colors [16-255] ; same colors as xterm */
|
||
for(i = 16, r = 0; r < 6; r++) {
|
||
for(g = 0; g < 6; g++) {
|
||
for(b = 0; b < 6; b++) {
|
||
color.red = r == 0 ? 0 : 0x3737 + 0x2828 * r;
|
||
color.green = g == 0 ? 0 : 0x3737 + 0x2828 * g;
|
||
color.blue = b == 0 ? 0 : 0x3737 + 0x2828 * b;
|
||
if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, &dc.col[i])) {
|
||
die("Could not allocate color %d\n", i);
|
||
}
|
||
i++;
|
||
}
|
||
}
|
||
}
|
||
|
||
for(r = 0; r < 24; r++, i++) {
|
||
color.red = color.green = color.blue = 0x0808 + 0x0a0a * r;
|
||
if(!XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color,
|
||
&dc.col[i])) {
|
||
die("Could not allocate color %d\n", i);
|
||
}
|
||
}
|
||
}
|
||
|
||
void
|
||
xtermclear(int col1, int row1, int col2, int row2) {
|
||
XftDrawRect(xw.draw,
|
||
&dc.col[IS_SET(MODE_REVERSE) ? defaultfg : defaultbg],
|
||
borderpx + col1 * xw.cw,
|
||
borderpx + row1 * xw.ch,
|
||
(col2-col1+1) * xw.cw,
|
||
(row2-row1+1) * xw.ch);
|
||
}
|
||
|
||
/*
|
||
* Absolute coordinates.
|
||
*/
|
||
void
|
||
xclear(int x1, int y1, int x2, int y2) {
|
||
XftDrawRect(xw.draw,
|
||
&dc.col[IS_SET(MODE_REVERSE)? defaultfg : defaultbg],
|
||
x1, y1, x2-x1, y2-y1);
|
||
}
|
||
|
||
void
|
||
xhints(void) {
|
||
XClassHint class = {opt_class ? opt_class : termname, termname};
|
||
XWMHints wm = {.flags = InputHint, .input = 1};
|
||
XSizeHints *sizeh = NULL;
|
||
|
||
sizeh = XAllocSizeHints();
|
||
if(xw.isfixed == False) {
|
||
sizeh->flags = PSize | PResizeInc | PBaseSize;
|
||
sizeh->height = xw.h;
|
||
sizeh->width = xw.w;
|
||
sizeh->height_inc = xw.ch;
|
||
sizeh->width_inc = xw.cw;
|
||
sizeh->base_height = 2 * borderpx;
|
||
sizeh->base_width = 2 * borderpx;
|
||
} else {
|
||
sizeh->flags = PMaxSize | PMinSize;
|
||
sizeh->min_width = sizeh->max_width = xw.fw;
|
||
sizeh->min_height = sizeh->max_height = xw.fh;
|
||
}
|
||
|
||
XSetWMProperties(xw.dpy, xw.win, NULL, NULL, NULL, 0, sizeh, &wm, &class);
|
||
XFree(sizeh);
|
||
}
|
||
|
||
int
|
||
xloadfont(Font *f, FcPattern *pattern) {
|
||
FcPattern *match;
|
||
FcResult result;
|
||
|
||
match = FcFontMatch(NULL, pattern, &result);
|
||
if(!match)
|
||
return 1;
|
||
|
||
if(!(f->set = FcFontSort(0, match, FcTrue, 0, &result))) {
|
||
FcPatternDestroy(match);
|
||
return 1;
|
||
}
|
||
|
||
if(!(f->match = XftFontOpenPattern(xw.dpy, match))) {
|
||
FcPatternDestroy(match);
|
||
return 1;
|
||
}
|
||
|
||
f->pattern = FcPatternDuplicate(pattern);
|
||
|
||
f->ascent = f->match->ascent;
|
||
f->descent = f->match->descent;
|
||
f->lbearing = 0;
|
||
f->rbearing = f->match->max_advance_width;
|
||
|
||
f->height = f->match->height;
|
||
f->width = f->lbearing + f->rbearing;
|
||
|
||
return 0;
|
||
}
|
||
|
||
void
|
||
xloadfonts(char *fontstr, int fontsize) {
|
||
FcPattern *pattern;
|
||
FcResult result;
|
||
double fontval;
|
||
|
||
if(fontstr[0] == '-') {
|
||
pattern = XftXlfdParse(fontstr, False, False);
|
||
} else {
|
||
pattern = FcNameParse((FcChar8 *)fontstr);
|
||
}
|
||
|
||
if(!pattern)
|
||
die("st: can't open font %s\n", fontstr);
|
||
|
||
if(fontsize > 0) {
|
||
FcPatternDel(pattern, FC_PIXEL_SIZE);
|
||
FcPatternAddDouble(pattern, FC_PIXEL_SIZE, (double)fontsize);
|
||
usedfontsize = fontsize;
|
||
} else {
|
||
result = FcPatternGetDouble(pattern, FC_PIXEL_SIZE, 0, &fontval);
|
||
if(result == FcResultMatch) {
|
||
usedfontsize = (int)fontval;
|
||
} else {
|
||
/*
|
||
* Default font size is 12, if none given. This is to
|
||
* have a known usedfontsize value.
|
||
*/
|
||
FcPatternAddDouble(pattern, FC_PIXEL_SIZE, 12);
|
||
usedfontsize = 12;
|
||
}
|
||
}
|
||
|
||
FcConfigSubstitute(0, pattern, FcMatchPattern);
|
||
FcDefaultSubstitute(pattern);
|
||
|
||
if(xloadfont(&dc.font, pattern))
|
||
die("st: can't open font %s\n", fontstr);
|
||
|
||
/* Setting character width and height. */
|
||
xw.cw = dc.font.width;
|
||
xw.ch = dc.font.height;
|
||
|
||
FcPatternDel(pattern, FC_WEIGHT);
|
||
FcPatternAddInteger(pattern, FC_WEIGHT, FC_WEIGHT_BOLD);
|
||
if(xloadfont(&dc.bfont, pattern))
|
||
die("st: can't open font %s\n", fontstr);
|
||
|
||
FcPatternDel(pattern, FC_SLANT);
|
||
FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC);
|
||
if(xloadfont(&dc.ibfont, pattern))
|
||
die("st: can't open font %s\n", fontstr);
|
||
|
||
FcPatternDel(pattern, FC_WEIGHT);
|
||
if(xloadfont(&dc.ifont, pattern))
|
||
die("st: can't open font %s\n", fontstr);
|
||
|
||
FcPatternDestroy(pattern);
|
||
}
|
||
|
||
void
|
||
xunloadfonts(void)
|
||
{
|
||
int i, ip;
|
||
|
||
/*
|
||
* Free the loaded fonts in the font cache. This is done backwards
|
||
* from the frccur.
|
||
*/
|
||
for (i = 0, ip = frccur; i < frclen; i++, ip--) {
|
||
if (ip < 0)
|
||
ip = LEN(frc) - 1;
|
||
XftFontClose(xw.dpy, frc[ip].font);
|
||
}
|
||
frccur = -1;
|
||
frclen = 0;
|
||
|
||
XftFontClose(xw.dpy, dc.font.match);
|
||
FcPatternDestroy(dc.font.pattern);
|
||
FcFontSetDestroy(dc.font.set);
|
||
XftFontClose(xw.dpy, dc.bfont.match);
|
||
FcPatternDestroy(dc.bfont.pattern);
|
||
FcFontSetDestroy(dc.bfont.set);
|
||
XftFontClose(xw.dpy, dc.ifont.match);
|
||
FcPatternDestroy(dc.ifont.pattern);
|
||
FcFontSetDestroy(dc.ifont.set);
|
||
XftFontClose(xw.dpy, dc.ibfont.match);
|
||
FcPatternDestroy(dc.ibfont.pattern);
|
||
FcFontSetDestroy(dc.ibfont.set);
|
||
}
|
||
|
||
void
|
||
xzoom(const Arg *arg)
|
||
{
|
||
xunloadfonts();
|
||
xloadfonts(usedfont, usedfontsize + arg->i);
|
||
cresize(0, 0);
|
||
redraw(0);
|
||
}
|
||
|
||
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 */
|
||
if (!FcInit())
|
||
die("Could not init fontconfig.\n");
|
||
|
||
usedfont = (opt_font == NULL)? font : opt_font;
|
||
xloadfonts(usedfont, 0);
|
||
|
||
/* colors */
|
||
xw.cmap = XDefaultColormap(xw.dpy, xw.scr);
|
||
xloadcols();
|
||
|
||
/* adjust fixed window geometry */
|
||
if(xw.isfixed) {
|
||
sw = DisplayWidth(xw.dpy, xw.scr);
|
||
sh = DisplayHeight(xw.dpy, xw.scr);
|
||
if(xw.fx < 0)
|
||
xw.fx = sw + xw.fx - xw.fw - 1;
|
||
if(xw.fy < 0)
|
||
xw.fy = sh + xw.fy - xw.fh - 1;
|
||
|
||
xw.h = xw.fh;
|
||
xw.w = xw.fw;
|
||
} else {
|
||
/* window - default size */
|
||
xw.h = 2 * borderpx + term.row * xw.ch;
|
||
xw.w = 2 * borderpx + term.col * xw.cw;
|
||
xw.fx = 0;
|
||
xw.fy = 0;
|
||
}
|
||
|
||
attrs.background_pixel = dc.col[defaultbg].pixel;
|
||
attrs.border_pixel = dc.col[defaultbg].pixel;
|
||
attrs.bit_gravity = NorthWestGravity;
|
||
attrs.event_mask = FocusChangeMask | KeyPressMask
|
||
| ExposureMask | VisibilityChangeMask | StructureNotifyMask
|
||
| ButtonMotionMask | ButtonPressMask | ButtonReleaseMask;
|
||
attrs.colormap = xw.cmap;
|
||
|
||
parent = opt_embed ? strtol(opt_embed, NULL, 0) : \
|
||
XRootWindow(xw.dpy, xw.scr);
|
||
xw.win = XCreateWindow(xw.dpy, parent, xw.fx, xw.fy,
|
||
xw.w, xw.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput,
|
||
xw.vis,
|
||
CWBackPixel | CWBorderPixel | CWBitGravity | CWEventMask
|
||
| CWColormap,
|
||
&attrs);
|
||
|
||
/* double buffering */
|
||
/*
|
||
if(XdbeQueryExtension(xw.dpy, &major, &minor)) {
|
||
xw.buf = XdbeAllocateBackBufferName(xw.dpy, xw.win,
|
||
XdbeBackground);
|
||
usedbe = True;
|
||
} else {
|
||
*/
|
||
dc.gc = XCreateGC(xw.dpy, parent, 0, 0);
|
||
xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.w, xw.h,
|
||
DefaultDepth(xw.dpy, xw.scr));
|
||
XSetForeground(xw.dpy, dc.gc, 0);
|
||
XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, xw.w, xw.h);
|
||
//xw.buf = xw.win;
|
||
/*
|
||
}
|
||
*/
|
||
|
||
/* Xft rendering context */
|
||
xw.draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap);
|
||
|
||
/* input methods */
|
||
if((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) {
|
||
XSetLocaleModifiers("@im=local");
|
||
if((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) {
|
||
XSetLocaleModifiers("@im=");
|
||
if((xw.xim = XOpenIM(xw.dpy,
|
||
NULL, NULL, NULL)) == NULL) {
|
||
die("XOpenIM failed. Could not open input"
|
||
" device.\n");
|
||
}
|
||
}
|
||
}
|
||
xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing
|
||
| XIMStatusNothing, XNClientWindow, xw.win,
|
||
XNFocusWindow, xw.win, NULL);
|
||
if(xw.xic == NULL)
|
||
die("XCreateIC failed. Could not obtain input method.\n");
|
||
|
||
/* white cursor, black outline */
|
||
cursor = XCreateFontCursor(xw.dpy, XC_xterm);
|
||
XDefineCursor(xw.dpy, xw.win, cursor);
|
||
XRecolorCursor(xw.dpy, cursor,
|
||
&(XColor){.red = 0xffff, .green = 0xffff, .blue = 0xffff},
|
||
&(XColor){.red = 0x0000, .green = 0x0000, .blue = 0x0000});
|
||
|
||
xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False);
|
||
xw.wmdeletewin = XInternAtom(xw.dpy, "WM_DELETE_WINDOW", False);
|
||
XSetWMProtocols(xw.dpy, xw.win, &xw.wmdeletewin, 1);
|
||
|
||
xresettitle();
|
||
XMapWindow(xw.dpy, xw.win);
|
||
xhints();
|
||
XSync(xw.dpy, 0);
|
||
}
|
||
|
||
void
|
||
xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
|
||
int winx = borderpx + x * xw.cw, winy = borderpx + y * xw.ch,
|
||
width = charlen * xw.cw, xp, i;
|
||
int frp, frcflags;
|
||
int u8fl, u8fblen, u8cblen, doesexist;
|
||
char *u8c, *u8fs;
|
||
long u8char;
|
||
Font *font = &dc.font;
|
||
FcResult fcres;
|
||
FcPattern *fcpattern, *fontpattern;
|
||
FcFontSet *fcsets[] = { NULL };
|
||
FcCharSet *fccharset;
|
||
Colour *fg = &dc.col[base.fg], *bg = &dc.col[base.bg],
|
||
*temp, revfg, revbg;
|
||
XRenderColor colfg, colbg;
|
||
|
||
frcflags = FRC_NORMAL;
|
||
|
||
if(base.mode & ATTR_BOLD) {
|
||
if(BETWEEN(base.fg, 0, 7)) {
|
||
/* basic system colors */
|
||
fg = &dc.col[base.fg + 8];
|
||
} else if(BETWEEN(base.fg, 16, 195)) {
|
||
/* 256 colors */
|
||
fg = &dc.col[base.fg + 36];
|
||
} else if(BETWEEN(base.fg, 232, 251)) {
|
||
/* greyscale */
|
||
fg = &dc.col[base.fg + 4];
|
||
}
|
||
/*
|
||
* Those ranges will not be brightened:
|
||
* 8 - 15 – bright system colors
|
||
* 196 - 231 – highest 256 color cube
|
||
* 252 - 255 – brightest colors in greyscale
|
||
*/
|
||
font = &dc.bfont;
|
||
frcflags = FRC_BOLD;
|
||
}
|
||
|
||
if(base.mode & ATTR_ITALIC) {
|
||
font = &dc.ifont;
|
||
frcflags = FRC_ITALIC;
|
||
}
|
||
if((base.mode & ATTR_ITALIC) && (base.mode & ATTR_BOLD)) {
|
||
font = &dc.ibfont;
|
||
frcflags = FRC_ITALICBOLD;
|
||
}
|
||
|
||
if(IS_SET(MODE_REVERSE)) {
|
||
if(fg == &dc.col[defaultfg]) {
|
||
fg = &dc.col[defaultbg];
|
||
} else {
|
||
colfg.red = ~fg->color.red;
|
||
colfg.green = ~fg->color.green;
|
||
colfg.blue = ~fg->color.blue;
|
||
colfg.alpha = fg->color.alpha;
|
||
XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &revfg);
|
||
fg = &revfg;
|
||
}
|
||
|
||
if(bg == &dc.col[defaultbg]) {
|
||
bg = &dc.col[defaultfg];
|
||
} else {
|
||
colbg.red = ~bg->color.red;
|
||
colbg.green = ~bg->color.green;
|
||
colbg.blue = ~bg->color.blue;
|
||
colbg.alpha = bg->color.alpha;
|
||
XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg, &revbg);
|
||
bg = &revbg;
|
||
}
|
||
}
|
||
|
||
if(base.mode & ATTR_REVERSE) {
|
||
temp = fg;
|
||
fg = bg;
|
||
bg = temp;
|
||
}
|
||
|
||
/* Intelligent cleaning up of the borders. */
|
||
if(x == 0) {
|
||
xclear(0, (y == 0)? 0 : winy, borderpx,
|
||
winy + xw.ch + ((y >= term.row-1)? xw.h : 0));
|
||
}
|
||
if(x + charlen >= term.col) {
|
||
xclear(winx + width, (y == 0)? 0 : winy, xw.w,
|
||
((y >= term.row-1)? xw.h : (winy + xw.ch)));
|
||
}
|
||
if(y == 0)
|
||
xclear(winx, 0, winx + width, borderpx);
|
||
if(y == term.row-1)
|
||
xclear(winx, winy + xw.ch, winx + width, xw.h);
|
||
|
||
/* Clean up the region we want to draw to. */
|
||
XftDrawRect(xw.draw, bg, winx, winy, width, xw.ch);
|
||
|
||
fcsets[0] = font->set;
|
||
for (xp = winx; bytelen > 0;) {
|
||
/*
|
||
* Search for the range in the to be printed string of glyphs
|
||
* that are in the main font. Then print that range. If
|
||
* some glyph is found that is not in the font, do the
|
||
* fallback dance.
|
||
*/
|
||
u8fs = s;
|
||
u8fblen = 0;
|
||
u8fl = 0;
|
||
for (;;) {
|
||
u8c = s;
|
||
u8cblen = utf8decode(s, &u8char);
|
||
s += u8cblen;
|
||
bytelen -= u8cblen;
|
||
|
||
doesexist = XftCharIndex(xw.dpy, font->match, u8char);
|
||
if (!doesexist || bytelen <= 0) {
|
||
if (bytelen <= 0) {
|
||
if (doesexist) {
|
||
u8fl++;
|
||
u8fblen += u8cblen;
|
||
}
|
||
}
|
||
|
||
if (u8fl > 0) {
|
||
XftDrawStringUtf8(xw.draw, fg,
|
||
font->match, xp,
|
||
winy + font->ascent,
|
||
(FcChar8 *)u8fs,
|
||
u8fblen);
|
||
xp += font->width * u8fl;
|
||
}
|
||
break;
|
||
}
|
||
|
||
u8fl++;
|
||
u8fblen += u8cblen;
|
||
}
|
||
if (doesexist)
|
||
break;
|
||
|
||
frp = frccur;
|
||
/* Search the font cache. */
|
||
for (i = 0; i < frclen; i++, frp--) {
|
||
if (frp <= 0)
|
||
frp = LEN(frc) - 1;
|
||
|
||
if (frc[frp].c == u8char
|
||
&& frc[frp].flags == frcflags) {
|
||
break;
|
||
}
|
||
}
|
||
|
||
/* Nothing was found. */
|
||
if (i >= frclen) {
|
||
/*
|
||
* Nothing was found in the cache. Now use
|
||
* some dozen of Fontconfig calls to get the
|
||
* font for one single character.
|
||
*/
|
||
fcpattern = FcPatternDuplicate(font->pattern);
|
||
fccharset = FcCharSetCreate();
|
||
|
||
FcCharSetAddChar(fccharset, u8char);
|
||
FcPatternAddCharSet(fcpattern, FC_CHARSET,
|
||
fccharset);
|
||
FcPatternAddBool(fcpattern, FC_SCALABLE,
|
||
FcTrue);
|
||
|
||
FcConfigSubstitute(0, fcpattern,
|
||
FcMatchPattern);
|
||
FcDefaultSubstitute(fcpattern);
|
||
|
||
fontpattern = FcFontSetMatch(0, fcsets,
|
||
FcTrue, fcpattern, &fcres);
|
||
|
||
/*
|
||
* Overwrite or create the new cache entry
|
||
* entry.
|
||
*/
|
||
frccur++;
|
||
frclen++;
|
||
if (frccur >= LEN(frc))
|
||
frccur = 0;
|
||
if (frclen > LEN(frc)) {
|
||
frclen = LEN(frc);
|
||
XftFontClose(xw.dpy, frc[frccur].font);
|
||
}
|
||
|
||
frc[frccur].font = XftFontOpenPattern(xw.dpy,
|
||
fontpattern);
|
||
frc[frccur].c = u8char;
|
||
frc[frccur].flags = frcflags;
|
||
|
||
FcPatternDestroy(fcpattern);
|
||
FcCharSetDestroy(fccharset);
|
||
|
||
frp = frccur;
|
||
}
|
||
|
||
XftDrawStringUtf8(xw.draw, fg, frc[frp].font,
|
||
xp, winy + frc[frp].font->ascent,
|
||
(FcChar8 *)u8c, u8cblen);
|
||
|
||
xp += font->width;
|
||
}
|
||
|
||
/*
|
||
XftDrawStringUtf8(xw.draw, fg, font->set, winx,
|
||
winy + font->ascent, (FcChar8 *)s, bytelen);
|
||
*/
|
||
|
||
if(base.mode & ATTR_UNDERLINE) {
|
||
XftDrawRect(xw.draw, fg, winx, winy + font->ascent + 1,
|
||
width, 1);
|
||
}
|
||
}
|
||
|
||
void
|
||
xdrawcursor(void) {
|
||
static int oldx = 0, oldy = 0;
|
||
int sl;
|
||
Glyph g = {{' '}, ATTR_NULL, defaultbg, defaultcs, 0};
|
||
|
||
LIMIT(oldx, 0, term.col-1);
|
||
LIMIT(oldy, 0, term.row-1);
|
||
|
||
if(term.line[term.c.y][term.c.x].state & GLYPH_SET)
|
||
memcpy(g.c, term.line[term.c.y][term.c.x].c, UTF_SIZ);
|
||
|
||
/* remove the old cursor */
|
||
if(term.line[oldy][oldx].state & GLYPH_SET) {
|
||
sl = utf8size(term.line[oldy][oldx].c);
|
||
xdraws(term.line[oldy][oldx].c, term.line[oldy][oldx], oldx,
|
||
oldy, 1, sl);
|
||
} else {
|
||
xtermclear(oldx, oldy, oldx, oldy);
|
||
}
|
||
|
||
/* draw the new one */
|
||
if(!(IS_SET(MODE_HIDE))) {
|
||
if(!(xw.state & WIN_FOCUSED))
|
||
g.bg = defaultucs;
|
||
|
||
if(IS_SET(MODE_REVERSE))
|
||
g.mode |= ATTR_REVERSE, g.fg = defaultcs, g.bg = defaultfg;
|
||
|
||
sl = utf8size(g.c);
|
||
xdraws(g.c, g, term.c.x, term.c.y, 1, sl);
|
||
oldx = term.c.x, oldy = term.c.y;
|
||
}
|
||
}
|
||
|
||
void
|
||
xresettitle(void) {
|
||
XStoreName(xw.dpy, xw.win, opt_title ? opt_title : "st");
|
||
}
|
||
|
||
void
|
||
redraw(int timeout) {
|
||
struct timespec tv = {0, timeout * 1000};
|
||
|
||
tfulldirt();
|
||
draw();
|
||
|
||
if(timeout > 0) {
|
||
nanosleep(&tv, NULL);
|
||
XSync(xw.dpy, False); /* necessary for a good tput flash */
|
||
}
|
||
}
|
||
|
||
void
|
||
draw(void) {
|
||
XdbeSwapInfo swpinfo[1] = {{xw.win, XdbeCopied}};
|
||
|
||
drawregion(0, 0, term.col, term.row);
|
||
if(usedbe) {
|
||
XdbeSwapBuffers(xw.dpy, swpinfo, 1);
|
||
} else {
|
||
XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, 0, 0, xw.w,
|
||
xw.h, 0, 0);
|
||
XSetForeground(xw.dpy, dc.gc, 0);
|
||
XSync(xw.dpy, False);
|
||
}
|
||
}
|
||
|
||
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;
|
||
|
||
if(sel.alt ^ IS_SET(MODE_ALTSCREEN))
|
||
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;
|
||
}
|
||
redraw(0);
|
||
}
|
||
|
||
void
|
||
visibility(XEvent *ev) {
|
||
XVisibilityEvent *e = &ev->xvisibility;
|
||
|
||
if(e->state == VisibilityFullyObscured) {
|
||
xw.state &= ~WIN_VISIBLE;
|
||
} else if(!(xw.state & WIN_VISIBLE)) {
|
||
/* need a full redraw for next Expose, not just a buf copy */
|
||
xw.state |= WIN_VISIBLE | WIN_REDRAW;
|
||
}
|
||
}
|
||
|
||
void
|
||
unmap(XEvent *ev) {
|
||
xw.state &= ~WIN_VISIBLE;
|
||
}
|
||
|
||
void
|
||
xseturgency(int add) {
|
||
XWMHints *h = XGetWMHints(xw.dpy, xw.win);
|
||
|
||
h->flags = add ? (h->flags | XUrgencyHint) : (h->flags & ~XUrgencyHint);
|
||
XSetWMHints(xw.dpy, xw.win, h);
|
||
XFree(h);
|
||
}
|
||
|
||
void
|
||
focus(XEvent *ev) {
|
||
if(ev->type == FocusIn) {
|
||
XSetICFocus(xw.xic);
|
||
xw.state |= WIN_FOCUSED;
|
||
xseturgency(0);
|
||
} else {
|
||
XUnsetICFocus(xw.xic);
|
||
xw.state &= ~WIN_FOCUSED;
|
||
}
|
||
}
|
||
|
||
inline bool
|
||
match(uint mask, uint state) {
|
||
if(mask == XK_NO_MOD && state)
|
||
return false;
|
||
if(mask != XK_ANY_MOD && mask != XK_NO_MOD && !state)
|
||
return false;
|
||
if((state & mask) != state)
|
||
return false;
|
||
return true;
|
||
}
|
||
|
||
void
|
||
numlock(const Arg *dummy) {
|
||
term.numlock ^= 1;
|
||
}
|
||
|
||
char*
|
||
kmap(KeySym k, uint state) {
|
||
uint mask;
|
||
Key *kp;
|
||
int i;
|
||
|
||
/* Check for mapped keys out of X11 function keys. */
|
||
for(i = 0; i < LEN(mappedkeys); i++) {
|
||
if(mappedkeys[i] == k)
|
||
break;
|
||
}
|
||
if(i == LEN(mappedkeys)) {
|
||
if((k & 0xFFFF) < 0xFD00)
|
||
return NULL;
|
||
}
|
||
|
||
for(kp = key; kp < key + LEN(key); kp++) {
|
||
mask = kp->mask;
|
||
|
||
if(kp->k != k)
|
||
continue;
|
||
|
||
if(!match(mask, state))
|
||
continue;
|
||
|
||
if(kp->appkey > 0) {
|
||
if(!IS_SET(MODE_APPKEYPAD))
|
||
continue;
|
||
if(term.numlock && kp->appkey == 2)
|
||
continue;
|
||
} else if(kp->appkey < 0 && IS_SET(MODE_APPKEYPAD)) {
|
||
continue;
|
||
}
|
||
|
||
if((kp->appcursor < 0 && IS_SET(MODE_APPCURSOR)) ||
|
||
(kp->appcursor > 0
|
||
&& !IS_SET(MODE_APPCURSOR))) {
|
||
continue;
|
||
}
|
||
|
||
if((kp->crlf < 0 && IS_SET(MODE_CRLF)) ||
|
||
(kp->crlf > 0 && !IS_SET(MODE_CRLF))) {
|
||
continue;
|
||
}
|
||
|
||
return kp->s;
|
||
}
|
||
|
||
return NULL;
|
||
}
|
||
|
||
void
|
||
kpress(XEvent *ev) {
|
||
XKeyEvent *e = &ev->xkey;
|
||
KeySym ksym;
|
||
char xstr[31], buf[32], *customkey, *cp = buf;
|
||
int len;
|
||
Status status;
|
||
Shortcut *bp;
|
||
|
||
if (IS_SET(MODE_KBDLOCK))
|
||
return;
|
||
|
||
len = XmbLookupString(xw.xic, e, xstr, sizeof(xstr), &ksym, &status);
|
||
e->state &= ~Mod2Mask;
|
||
/* 1. shortcuts */
|
||
for(bp = shortcuts; bp < shortcuts + LEN(shortcuts); bp++) {
|
||
if(ksym == bp->keysym && match(bp->mod, e->state)) {
|
||
bp->func(&(bp->arg));
|
||
return;
|
||
}
|
||
}
|
||
|
||
/* 2. custom keys from config.h */
|
||
if((customkey = kmap(ksym, e->state))) {
|
||
len = strlen(customkey);
|
||
memcpy(buf, customkey, len);
|
||
/* 2. hardcoded (overrides X lookup) */
|
||
} else {
|
||
if(len == 0)
|
||
return;
|
||
|
||
if (len == 1 && e->state & Mod1Mask)
|
||
*cp++ = '\033';
|
||
|
||
memcpy(cp, xstr, len);
|
||
len = cp - buf + len;
|
||
}
|
||
|
||
ttywrite(buf, len);
|
||
if(IS_SET(MODE_ECHO))
|
||
techo(buf, len);
|
||
}
|
||
|
||
|
||
void
|
||
cmessage(XEvent *e) {
|
||
/* See xembed specs
|
||
http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html */
|
||
if(e->xclient.message_type == xw.xembed && e->xclient.format == 32) {
|
||
if(e->xclient.data.l[1] == XEMBED_FOCUS_IN) {
|
||
xw.state |= WIN_FOCUSED;
|
||
xseturgency(0);
|
||
} else if(e->xclient.data.l[1] == XEMBED_FOCUS_OUT) {
|
||
xw.state &= ~WIN_FOCUSED;
|
||
}
|
||
} else if(e->xclient.data.l[0] == xw.wmdeletewin) {
|
||
/* Send SIGHUP to shell */
|
||
kill(pid, SIGHUP);
|
||
exit(EXIT_SUCCESS);
|
||
}
|
||
}
|
||
|
||
void
|
||
cresize(int width, int height)
|
||
{
|
||
int col, row;
|
||
|
||
if(width != 0)
|
||
xw.w = width;
|
||
if(height != 0)
|
||
xw.h = height;
|
||
|
||
col = (xw.w - 2 * borderpx) / xw.cw;
|
||
row = (xw.h - 2 * borderpx) / xw.ch;
|
||
|
||
tresize(col, row);
|
||
xresize(col, row);
|
||
ttyresize();
|
||
}
|
||
|
||
void
|
||
resize(XEvent *e) {
|
||
if(e->xconfigure.width == xw.w && e->xconfigure.height == xw.h)
|
||
return;
|
||
|
||
cresize(e->xconfigure.width, e->xconfigure.height);
|
||
}
|
||
|
||
void
|
||
run(void) {
|
||
XEvent ev;
|
||
fd_set rfd;
|
||
int xfd = XConnectionNumber(xw.dpy), i;
|
||
struct timeval drawtimeout, *tv = NULL;
|
||
|
||
for(i = 0;; i++) {
|
||
FD_ZERO(&rfd);
|
||
FD_SET(cmdfd, &rfd);
|
||
FD_SET(xfd, &rfd);
|
||
if(select(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, tv) < 0) {
|
||
if(errno == EINTR)
|
||
continue;
|
||
die("select failed: %s\n", SERRNO);
|
||
}
|
||
|
||
/*
|
||
* Stop after a certain number of reads so the user does not
|
||
* feel like the system is stuttering.
|
||
*/
|
||
if(i < 1000 && FD_ISSET(cmdfd, &rfd)) {
|
||
ttyread();
|
||
|
||
/*
|
||
* Just wait a bit so it isn't disturbing the
|
||
* user and the system is able to write something.
|
||
*/
|
||
drawtimeout.tv_sec = 0;
|
||
drawtimeout.tv_usec = 5;
|
||
tv = &drawtimeout;
|
||
continue;
|
||
}
|
||
i = 0;
|
||
tv = NULL;
|
||
|
||
while(XPending(xw.dpy)) {
|
||
XNextEvent(xw.dpy, &ev);
|
||
if(XFilterEvent(&ev, None))
|
||
continue;
|
||
if(handler[ev.type])
|
||
(handler[ev.type])(&ev);
|
||
}
|
||
|
||
draw();
|
||
XFlush(xw.dpy);
|
||
}
|
||
}
|
||
|
||
int
|
||
main(int argc, char *argv[]) {
|
||
int i, bitm, xr, yr;
|
||
uint wr, hr;
|
||
|
||
xw.fw = xw.fh = xw.fx = xw.fy = 0;
|
||
xw.isfixed = False;
|
||
|
||
for(i = 1; i < argc; i++) {
|
||
switch(argv[i][0] != '-' || argv[i][2] ? -1 : argv[i][1]) {
|
||
case 'c':
|
||
if(++i < argc)
|
||
opt_class = argv[i];
|
||
break;
|
||
case 'e':
|
||
/* eat all remaining arguments */
|
||
if(++i < argc)
|
||
opt_cmd = &argv[i];
|
||
goto run;
|
||
case 'f':
|
||
if(++i < argc)
|
||
opt_font = argv[i];
|
||
break;
|
||
case 'g':
|
||
if(++i >= argc)
|
||
break;
|
||
|
||
bitm = XParseGeometry(argv[i], &xr, &yr, &wr, &hr);
|
||
if(bitm & XValue)
|
||
xw.fx = xr;
|
||
if(bitm & YValue)
|
||
xw.fy = yr;
|
||
if(bitm & WidthValue)
|
||
xw.fw = (int)wr;
|
||
if(bitm & HeightValue)
|
||
xw.fh = (int)hr;
|
||
if(bitm & XNegative && xw.fx == 0)
|
||
xw.fx = -1;
|
||
if(bitm & XNegative && xw.fy == 0)
|
||
xw.fy = -1;
|
||
|
||
if(xw.fh != 0 && xw.fw != 0)
|
||
xw.isfixed = True;
|
||
break;
|
||
case 'o':
|
||
if(++i < argc)
|
||
opt_io = argv[i];
|
||
break;
|
||
case 't':
|
||
if(++i < argc)
|
||
opt_title = argv[i];
|
||
break;
|
||
case 'v':
|
||
default:
|
||
die(USAGE);
|
||
case 'w':
|
||
if(++i < argc)
|
||
opt_embed = argv[i];
|
||
break;
|
||
}
|
||
}
|
||
|
||
run:
|
||
setlocale(LC_CTYPE, "");
|
||
XSetLocaleModifiers("");
|
||
tnew(80, 24);
|
||
xinit();
|
||
ttynew();
|
||
selinit();
|
||
run();
|
||
|
||
return 0;
|
||
}
|
||
|