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2362 lines
53 KiB
2362 lines
53 KiB
/* See LICENSE for licence details. */ |
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#define _XOPEN_SOURCE 600 |
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#include <ctype.h> |
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#include <errno.h> |
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#include <fcntl.h> |
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#include <limits.h> |
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#include <locale.h> |
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#include <stdarg.h> |
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#include <stdbool.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <signal.h> |
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#include <sys/ioctl.h> |
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#include <sys/select.h> |
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#include <sys/stat.h> |
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#include <sys/time.h> |
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#include <sys/types.h> |
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#include <sys/wait.h> |
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#include <time.h> |
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#include <unistd.h> |
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#include <X11/Xatom.h> |
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#include <X11/Xlib.h> |
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#include <X11/Xutil.h> |
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#include <X11/cursorfont.h> |
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#include <X11/keysym.h> |
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#include <X11/extensions/Xdbe.h> |
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|
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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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|
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#define USAGE \ |
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"st " VERSION " (c) 2010-2012 st engineers\n" \ |
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"usage: st [-t title] [-c class] [-g geometry]" \ |
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" [-w windowid] [-v] [-f file] [-e command...]\n" |
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|
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/* XEMBED messages */ |
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#define XEMBED_FOCUS_IN 4 |
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#define XEMBED_FOCUS_OUT 5 |
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|
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/* Arbitrary sizes */ |
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#define ESC_BUF_SIZ 256 |
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#define ESC_ARG_SIZ 16 |
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#define STR_BUF_SIZ 256 |
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#define STR_ARG_SIZ 16 |
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#define DRAW_BUF_SIZ 1024 |
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#define UTF_SIZ 4 |
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#define XK_NO_MOD UINT_MAX |
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#define XK_ANY_MOD 0 |
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|
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#define SELECT_TIMEOUT (20*1000) /* 20 ms */ |
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#define DRAW_TIMEOUT (20*1000) /* 20 ms */ |
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#define REDRAW_TIMEOUT (80*1000) /* 80 ms */ |
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|
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#define SERRNO strerror(errno) |
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#define MIN(a, b) ((a) < (b) ? (a) : (b)) |
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#define MAX(a, b) ((a) < (b) ? (b) : (a)) |
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#define LEN(a) (sizeof(a) / sizeof(a[0])) |
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#define DEFAULT(a, b) (a) = (a) ? (a) : (b) |
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#define BETWEEN(x, a, b) ((a) <= (x) && (x) <= (b)) |
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#define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x) |
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#define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || (a).bg != (b).bg) |
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#define IS_SET(flag) (term.mode & (flag)) |
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#define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + (t1.tv_usec-t2.tv_usec)/1000) |
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#define X2COL(x) (((x) - BORDER)/xw.cw) |
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#define Y2ROW(y) (((y) - BORDER)/xw.ch) |
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|
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enum glyph_attribute { |
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ATTR_NULL = 0, |
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ATTR_REVERSE = 1, |
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ATTR_UNDERLINE = 2, |
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ATTR_BOLD = 4, |
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ATTR_GFX = 8, |
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}; |
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|
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enum cursor_movement { |
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CURSOR_UP, |
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CURSOR_DOWN, |
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CURSOR_LEFT, |
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CURSOR_RIGHT, |
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CURSOR_SAVE, |
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CURSOR_LOAD |
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}; |
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|
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enum cursor_state { |
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CURSOR_DEFAULT = 0, |
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CURSOR_HIDE = 1, |
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CURSOR_WRAPNEXT = 2 |
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}; |
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|
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enum glyph_state { |
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GLYPH_SET = 1, |
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GLYPH_DIRTY = 2 |
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}; |
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|
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enum term_mode { |
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MODE_WRAP = 1, |
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MODE_INSERT = 2, |
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MODE_APPKEYPAD = 4, |
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MODE_ALTSCREEN = 8, |
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MODE_CRLF = 16, |
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MODE_MOUSEBTN = 32, |
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MODE_MOUSEMOTION = 64, |
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MODE_MOUSE = 32|64, |
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MODE_REVERSE = 128 |
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}; |
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|
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enum escape_state { |
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ESC_START = 1, |
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ESC_CSI = 2, |
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ESC_STR = 4, /* DSC, OSC, PM, APC */ |
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ESC_ALTCHARSET = 8, |
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ESC_STR_END = 16, /* a final string was encountered */ |
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}; |
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|
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enum window_state { |
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WIN_VISIBLE = 1, |
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WIN_REDRAW = 2, |
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WIN_FOCUSED = 4 |
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}; |
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|
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/* bit macro */ |
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#undef B0 |
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enum { B0=1, B1=2, B2=4, B3=8, B4=16, B5=32, B6=64, B7=128 }; |
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|
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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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|
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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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|
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typedef Glyph* Line; |
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|
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typedef struct { |
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Glyph attr; /* current char attributes */ |
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int x; |
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int y; |
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char state; |
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} TCursor; |
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|
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/* CSI Escape sequence structs */ |
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/* ESC '[' [[ [<priv>] <arg> [;]] <mode>] */ |
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typedef struct { |
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char buf[ESC_BUF_SIZ]; /* raw string */ |
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int len; /* raw string length */ |
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char priv; |
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int arg[ESC_ARG_SIZ]; |
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int narg; /* nb of args */ |
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char mode; |
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} CSIEscape; |
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|
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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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|
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/* Internal representation of the screen */ |
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typedef struct { |
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int row; /* nb row */ |
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int col; /* nb col */ |
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Line* line; /* screen */ |
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Line* alt; /* alternate screen */ |
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bool* dirty; /* dirtyness of lines */ |
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TCursor c; /* cursor */ |
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int top; /* top scroll limit */ |
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int bot; /* bottom scroll limit */ |
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int mode; /* terminal mode flags */ |
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int esc; /* escape state flags */ |
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bool *tabs; |
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} Term; |
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|
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/* Purely graphic info */ |
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typedef struct { |
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Display* dpy; |
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Colormap cmap; |
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Window win; |
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XdbeBackBuffer buf; |
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Atom xembed; |
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XIM xim; |
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XIC xic; |
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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 w; /* window width */ |
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int h; /* window height */ |
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int ch; /* char height */ |
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int cw; /* char width */ |
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char state; /* focus, redraw, visible */ |
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struct timeval lastdraw; |
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} XWindow; |
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|
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typedef struct { |
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KeySym k; |
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uint mask; |
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char s[ESC_BUF_SIZ]; |
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} Key; |
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|
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|
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/* TODO: use better name for vars... */ |
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typedef struct { |
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int mode; |
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int bx, by; |
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int ex, ey; |
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struct {int x, y;} b, e; |
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char *clip; |
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Atom xtarget; |
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struct timeval tclick1; |
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struct timeval tclick2; |
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} Selection; |
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|
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#include "config.h" |
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|
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/* Drawing Context */ |
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typedef struct { |
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ulong col[LEN(colorname) < 256 ? 256 : LEN(colorname)]; |
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GC gc; |
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struct { |
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int ascent; |
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int descent; |
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short lbearing; |
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short rbearing; |
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XFontSet set; |
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} font, bfont; |
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} DC; |
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|
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static void die(const char*, ...); |
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static void draw(void); |
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static void redraw(void); |
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static void drawregion(int, int, int, int); |
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static void execsh(void); |
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static void sigchld(int); |
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static void run(void); |
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static bool last_draw_too_old(void); |
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|
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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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|
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static void tclearregion(int, int, int, int); |
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static void tcursor(int); |
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static void tdeletechar(int); |
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static void tdeleteline(int); |
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static void tinsertblank(int); |
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static void tinsertblankline(int); |
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static void tmoveto(int, int); |
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static void tnew(int, int); |
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static void tnewline(int); |
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static void tputtab(bool); |
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static void tputc(char*); |
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static void treset(void); |
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static int tresize(int, int); |
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static void tscrollup(int, int); |
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static void tscrolldown(int, int); |
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static void tsetattr(int*, int); |
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static void tsetchar(char*); |
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static void tsetscroll(int, int); |
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static void tswapscreen(void); |
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static void tsetdirt(int, int); |
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static void tsetmode(bool, bool, int *, int); |
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static void tfulldirt(void); |
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|
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static void ttynew(void); |
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static void ttyread(void); |
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static void ttyresize(int, int); |
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static void ttywrite(const char *, size_t); |
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|
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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 xcopy(); |
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static void xdrawcursor(void); |
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static void xinit(void); |
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static void xloadcols(void); |
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static void xseturgency(int); |
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static void xsetsel(char*); |
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static void xresize(int, int); |
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|
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static void expose(XEvent *); |
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static void visibility(XEvent *); |
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static void unmap(XEvent *); |
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static char* kmap(KeySym, uint); |
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static void kpress(XEvent *); |
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static void cmessage(XEvent *); |
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static void resize(XEvent *); |
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static void focus(XEvent *); |
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static void brelease(XEvent *); |
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static void bpress(XEvent *); |
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static void bmotion(XEvent *); |
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static void selnotify(XEvent *); |
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static void selrequest(XEvent *); |
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|
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static void selinit(void); |
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static inline bool selected(int, int); |
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static void selcopy(void); |
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static void selpaste(); |
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static void selscroll(int, int); |
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|
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static int utf8decode(char *, long *); |
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static int utf8encode(long *, char *); |
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static int utf8size(char *); |
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static int isfullutf8(char *, int); |
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|
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static void (*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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[SelectionNotify] = selnotify, |
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[SelectionRequest] = selrequest, |
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}; |
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|
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/* Globals */ |
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static DC dc; |
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static XWindow xw; |
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static Term term; |
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static CSIEscape csiescseq; |
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static STREscape strescseq; |
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static int cmdfd; |
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static pid_t pid; |
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static Selection sel; |
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static FILE *fileio; |
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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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|
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int |
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utf8decode(char *s, long *u) { |
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uchar c; |
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int i, n, rtn; |
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|
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rtn = 1; |
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c = *s; |
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if(~c & B7) { /* 0xxxxxxx */ |
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*u = c; |
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return rtn; |
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} else if((c & (B7|B6|B5)) == (B7|B6)) { /* 110xxxxx */ |
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*u = c&(B4|B3|B2|B1|B0); |
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n = 1; |
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} else if((c & (B7|B6|B5|B4)) == (B7|B6|B5)) { /* 1110xxxx */ |
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*u = c&(B3|B2|B1|B0); |
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n = 2; |
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} else if((c & (B7|B6|B5|B4|B3)) == (B7|B6|B5|B4)) { /* 11110xxx */ |
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*u = c & (B2|B1|B0); |
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n = 3; |
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} else |
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goto invalid; |
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for(i = n, ++s; i > 0; --i, ++rtn, ++s) { |
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c = *s; |
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if((c & (B7|B6)) != B7) /* 10xxxxxx */ |
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goto invalid; |
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*u <<= 6; |
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*u |= c & (B5|B4|B3|B2|B1|B0); |
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} |
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if((n == 1 && *u < 0x80) || |
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(n == 2 && *u < 0x800) || |
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(n == 3 && *u < 0x10000) || |
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(*u >= 0xD800 && *u <= 0xDFFF)) |
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goto invalid; |
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return rtn; |
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invalid: |
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*u = 0xFFFD; |
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return rtn; |
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} |
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|
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int |
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utf8encode(long *u, char *s) { |
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uchar *sp; |
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ulong uc; |
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int i, n; |
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|
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sp = (uchar*) s; |
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uc = *u; |
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if(uc < 0x80) { |
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*sp = uc; /* 0xxxxxxx */ |
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return 1; |
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} else if(*u < 0x800) { |
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*sp = (uc >> 6) | (B7|B6); /* 110xxxxx */ |
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n = 1; |
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} else if(uc < 0x10000) { |
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*sp = (uc >> 12) | (B7|B6|B5); /* 1110xxxx */ |
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n = 2; |
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} else if(uc <= 0x10FFFF) { |
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*sp = (uc >> 18) | (B7|B6|B5|B4); /* 11110xxx */ |
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n = 3; |
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} else { |
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goto invalid; |
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} |
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for(i=n,++sp; i>0; --i,++sp) |
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*sp = ((uc >> 6*(i-1)) & (B5|B4|B3|B2|B1|B0)) | B7; /* 10xxxxxx */ |
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return n+1; |
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invalid: |
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/* U+FFFD */ |
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*s++ = '\xEF'; |
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*s++ = '\xBF'; |
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*s = '\xBD'; |
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return 3; |
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} |
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|
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/* use this if your buffer is less than UTF_SIZ, it returns 1 if you can decode |
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UTF-8 otherwise return 0 */ |
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int |
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isfullutf8(char *s, int b) { |
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uchar *c1, *c2, *c3; |
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|
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c1 = (uchar *) s; |
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c2 = (uchar *) ++s; |
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c3 = (uchar *) ++s; |
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if(b < 1) |
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return 0; |
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else if((*c1&(B7|B6|B5)) == (B7|B6) && b == 1) |
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return 0; |
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else if((*c1&(B7|B6|B5|B4)) == (B7|B6|B5) && |
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((b == 1) || |
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((b == 2) && (*c2&(B7|B6)) == B7))) |
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return 0; |
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else if((*c1&(B7|B6|B5|B4|B3)) == (B7|B6|B5|B4) && |
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((b == 1) || |
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((b == 2) && (*c2&(B7|B6)) == B7) || |
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((b == 3) && (*c2&(B7|B6)) == B7 && (*c3&(B7|B6)) == B7))) |
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return 0; |
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else |
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return 1; |
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} |
|
|
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int |
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utf8size(char *s) { |
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uchar c = *s; |
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|
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if(~c&B7) |
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return 1; |
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else if((c&(B7|B6|B5)) == (B7|B6)) |
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return 2; |
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else if((c&(B7|B6|B5|B4)) == (B7|B6|B5)) |
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return 3; |
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else |
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return 4; |
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} |
|
|
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void |
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selinit(void) { |
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memset(&sel.tclick1, 0, sizeof(sel.tclick1)); |
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memset(&sel.tclick2, 0, sizeof(sel.tclick2)); |
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sel.mode = 0; |
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sel.bx = -1; |
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sel.clip = NULL; |
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sel.xtarget = XInternAtom(xw.dpy, "UTF8_STRING", 0); |
|
if(sel.xtarget == None) |
|
sel.xtarget = XA_STRING; |
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} |
|
|
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static inline bool |
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selected(int x, int y) { |
|
if(sel.ey == y && sel.by == y) { |
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int bx = MIN(sel.bx, sel.ex); |
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int ex = MAX(sel.bx, sel.ex); |
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return BETWEEN(x, bx, ex); |
|
} |
|
return ((sel.b.y < y&&y < sel.e.y) || (y==sel.e.y && x<=sel.e.x)) |
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|| (y==sel.b.y && x>=sel.b.x && (x<=sel.e.x || sel.b.y!=sel.e.y)); |
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} |
|
|
|
void |
|
getbuttoninfo(XEvent *e, int *b, int *x, int *y) { |
|
if(b) |
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*b = e->xbutton.button; |
|
|
|
*x = X2COL(e->xbutton.x); |
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*y = Y2ROW(e->xbutton.y); |
|
sel.b.x = sel.by < sel.ey ? sel.bx : sel.ex; |
|
sel.b.y = MIN(sel.by, sel.ey); |
|
sel.e.x = sel.by < sel.ey ? sel.ex : sel.bx; |
|
sel.e.y = MAX(sel.by, sel.ey); |
|
} |
|
|
|
void |
|
mousereport(XEvent *e) { |
|
int x = X2COL(e->xbutton.x); |
|
int y = Y2ROW(e->xbutton.y); |
|
int button = e->xbutton.button; |
|
int state = e->xbutton.state; |
|
char buf[] = { '\033', '[', 'M', 0, 32+x+1, 32+y+1 }; |
|
static int ob, ox, oy; |
|
|
|
/* from urxvt */ |
|
if(e->xbutton.type == MotionNotify) { |
|
if(!IS_SET(MODE_MOUSEMOTION) || (x == ox && y == oy)) |
|
return; |
|
button = ob + 32; |
|
ox = x, oy = y; |
|
} else if(e->xbutton.type == ButtonRelease || button == AnyButton) { |
|
button = 3; |
|
} else { |
|
button -= Button1; |
|
if(button >= 3) |
|
button += 64 - 3; |
|
if(e->xbutton.type == ButtonPress) { |
|
ob = button; |
|
ox = x, oy = y; |
|
} |
|
} |
|
|
|
buf[3] = 32 + button + (state & ShiftMask ? 4 : 0) |
|
+ (state & Mod4Mask ? 8 : 0) |
|
+ (state & ControlMask ? 16 : 0); |
|
|
|
ttywrite(buf, sizeof(buf)); |
|
} |
|
|
|
void |
|
bpress(XEvent *e) { |
|
if(IS_SET(MODE_MOUSE)) |
|
mousereport(e); |
|
else if(e->xbutton.button == Button1) { |
|
if(sel.bx != -1) |
|
tsetdirt(sel.b.y, sel.e.y); |
|
sel.mode = 1; |
|
sel.ex = sel.bx = X2COL(e->xbutton.x); |
|
sel.ey = sel.by = Y2ROW(e->xbutton.y); |
|
} |
|
} |
|
|
|
void |
|
selcopy(void) { |
|
char *str, *ptr; |
|
int x, y, bufsize, is_selected = 0; |
|
|
|
if(sel.bx == -1) |
|
str = NULL; |
|
|
|
else { |
|
bufsize = (term.col+1) * (sel.e.y-sel.b.y+1) * UTF_SIZ; |
|
ptr = str = malloc(bufsize); |
|
|
|
/* append every set & selected glyph to the selection */ |
|
for(y = 0; y < term.row; y++) { |
|
for(x = 0; x < term.col; x++) { |
|
is_selected = selected(x, y); |
|
if((term.line[y][x].state & GLYPH_SET) && is_selected) { |
|
int size = utf8size(term.line[y][x].c); |
|
memcpy(ptr, term.line[y][x].c, 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() { |
|
XConvertSelection(xw.dpy, XA_PRIMARY, sel.xtarget, XA_PRIMARY, xw.win, CurrentTime); |
|
} |
|
|
|
void |
|
selrequest(XEvent *e) { |
|
XSelectionRequestEvent *xsre; |
|
XSelectionEvent xev; |
|
Atom xa_targets; |
|
|
|
xsre = (XSelectionRequestEvent *) e; |
|
xev.type = SelectionNotify; |
|
xev.requestor = xsre->requestor; |
|
xev.selection = xsre->selection; |
|
xev.target = xsre->target; |
|
xev.time = xsre->time; |
|
/* reject */ |
|
xev.property = None; |
|
|
|
xa_targets = XInternAtom(xw.dpy, "TARGETS", 0); |
|
if(xsre->target == xa_targets) { |
|
/* respond with the supported type */ |
|
Atom string = sel.xtarget; |
|
XChangeProperty(xsre->display, xsre->requestor, xsre->property, |
|
XA_ATOM, 32, PropModeReplace, |
|
(uchar *) &string, 1); |
|
xev.property = xsre->property; |
|
} else if(xsre->target == sel.xtarget && sel.clip != NULL) { |
|
XChangeProperty(xsre->display, xsre->requestor, xsre->property, |
|
xsre->target, 8, PropModeReplace, |
|
(uchar *) sel.clip, strlen(sel.clip)); |
|
xev.property = xsre->property; |
|
} |
|
|
|
/* all done, send a notification to the listener */ |
|
if(!XSendEvent(xsre->display, xsre->requestor, True, 0, (XEvent *) &xev)) |
|
fprintf(stderr, "Error sending SelectionNotify event\n"); |
|
} |
|
|
|
void |
|
xsetsel(char *str) { |
|
/* register the selection for both the clipboard and the primary */ |
|
Atom clipboard; |
|
|
|
free(sel.clip); |
|
sel.clip = str; |
|
|
|
XSetSelectionOwner(xw.dpy, XA_PRIMARY, xw.win, CurrentTime); |
|
|
|
clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0); |
|
XSetSelectionOwner(xw.dpy, clipboard, xw.win, CurrentTime); |
|
|
|
XFlush(xw.dpy); |
|
} |
|
|
|
void |
|
brelease(XEvent *e) { |
|
if(IS_SET(MODE_MOUSE)) { |
|
mousereport(e); |
|
return; |
|
} |
|
if(e->xbutton.button == Button2) |
|
selpaste(); |
|
else if(e->xbutton.button == Button1) { |
|
sel.mode = 0; |
|
getbuttoninfo(e, NULL, &sel.ex, &sel.ey); |
|
term.dirty[sel.ey] = 1; |
|
if(sel.bx == sel.ex && sel.by == sel.ey) { |
|
struct timeval now; |
|
sel.bx = -1; |
|
gettimeofday(&now, NULL); |
|
|
|
if(TIMEDIFF(now, sel.tclick2) <= TRIPLECLICK_TIMEOUT) { |
|
/* triple click on the line */ |
|
sel.b.x = sel.bx = 0; |
|
sel.e.x = sel.ex = term.col; |
|
sel.b.y = sel.e.y = sel.ey; |
|
selcopy(); |
|
} else if(TIMEDIFF(now, sel.tclick1) <= DOUBLECLICK_TIMEOUT) { |
|
/* double click to select word */ |
|
sel.bx = sel.ex; |
|
while(sel.bx > 0 && term.line[sel.ey][sel.bx-1].state & GLYPH_SET && |
|
term.line[sel.ey][sel.bx-1].c[0] != ' ') sel.bx--; |
|
sel.b.x = sel.bx; |
|
while(sel.ex < term.col-1 && term.line[sel.ey][sel.ex+1].state & GLYPH_SET && |
|
term.line[sel.ey][sel.ex+1].c[0] != ' ') sel.ex++; |
|
sel.e.x = sel.ex; |
|
sel.b.y = sel.e.y = sel.ey; |
|
selcopy(); |
|
} |
|
} else |
|
selcopy(); |
|
} |
|
memcpy(&sel.tclick2, &sel.tclick1, sizeof(struct timeval)); |
|
gettimeofday(&sel.tclick1, NULL); |
|
draw(); |
|
} |
|
|
|
void |
|
bmotion(XEvent *e) { |
|
if(IS_SET(MODE_MOUSE)) { |
|
mousereport(e); |
|
return; |
|
} |
|
if(sel.mode) { |
|
int oldey = sel.ey, oldex = sel.ex; |
|
getbuttoninfo(e, NULL, &sel.ex, &sel.ey); |
|
|
|
if(oldey != sel.ey || oldex != sel.ex) { |
|
int starty = MIN(oldey, sel.ey); |
|
int endy = MAX(oldey, sel.ey); |
|
tsetdirt(starty, endy); |
|
draw(); |
|
} |
|
} |
|
} |
|
|
|
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"); |
|
|
|
DEFAULT(envshell, SHELL); |
|
putenv("TERM="TNAME); |
|
args = opt_cmd ? opt_cmd : (char*[]){envshell, "-i", NULL}; |
|
execvp(args[0], args); |
|
exit(EXIT_FAILURE); |
|
} |
|
|
|
void |
|
sigchld(int a) { |
|
int stat = 0; |
|
if(waitpid(pid, &stat, 0) < 0) |
|
die("Waiting for pid %hd failed: %s\n", pid, SERRNO); |
|
if(WIFEXITED(stat)) |
|
exit(WEXITSTATUS(stat)); |
|
else |
|
exit(EXIT_FAILURE); |
|
} |
|
|
|
void |
|
ttynew(void) { |
|
int m, s; |
|
|
|
/* seems to work fine on linux, openbsd and freebsd */ |
|
struct winsize w = {term.row, term.col, 0, 0}; |
|
if(openpty(&m, &s, NULL, NULL, &w) < 0) |
|
die("openpty failed: %s\n", SERRNO); |
|
|
|
switch(pid = fork()) { |
|
case -1: |
|
die("fork failed\n"); |
|
break; |
|
case 0: |
|
setsid(); /* create a new process group */ |
|
dup2(s, STDIN_FILENO); |
|
dup2(s, STDOUT_FILENO); |
|
dup2(s, STDERR_FILENO); |
|
if(ioctl(s, TIOCSCTTY, NULL) < 0) |
|
die("ioctl TIOCSCTTY failed: %s\n", SERRNO); |
|
close(s); |
|
close(m); |
|
execsh(); |
|
break; |
|
default: |
|
close(s); |
|
cmdfd = m; |
|
signal(SIGCHLD, sigchld); |
|
if (opt_io && !(fileio = fopen(opt_io, "w"))) { |
|
fprintf(stderr, "Error opening %s:%s\n", |
|
opt_io, strerror(errno)); |
|
} |
|
} |
|
} |
|
|
|
void |
|
dump(char c) { |
|
static int col; |
|
fprintf(stderr, " %02x '%c' ", c, isprint(c)?c:'.'); |
|
if(++col % 10 == 0) |
|
fprintf(stderr, "\n"); |
|
} |
|
|
|
void |
|
ttyread(void) { |
|
static char buf[BUFSIZ]; |
|
static int buflen = 0; |
|
char *ptr; |
|
char s[UTF_SIZ]; |
|
int charsize; /* size of utf8 char in bytes */ |
|
long utf8c; |
|
int ret; |
|
|
|
/* append read bytes to unprocessed bytes */ |
|
if((ret = read(cmdfd, buf+buflen, LEN(buf)-buflen)) < 0) |
|
die("Couldn't read from shell: %s\n", SERRNO); |
|
|
|
/* process every complete utf8 char */ |
|
buflen += ret; |
|
ptr = buf; |
|
while(buflen >= UTF_SIZ || isfullutf8(ptr,buflen)) { |
|
charsize = utf8decode(ptr, &utf8c); |
|
utf8encode(&utf8c, s); |
|
tputc(s); |
|
ptr += charsize; |
|
buflen -= charsize; |
|
} |
|
|
|
/* keep any uncomplete utf8 char for the next call */ |
|
memmove(buf, ptr, buflen); |
|
} |
|
|
|
void |
|
ttywrite(const char *s, size_t n) { |
|
if(write(cmdfd, s, n) == -1) |
|
die("write error on tty: %s\n", SERRNO); |
|
} |
|
|
|
void |
|
ttyresize(int x, int y) { |
|
struct winsize w; |
|
|
|
w.ws_row = term.row; |
|
w.ws_col = term.col; |
|
w.ws_xpixel = w.ws_ypixel = 0; |
|
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) { |
|
unsigned i; |
|
term.c = (TCursor){{ |
|
.mode = ATTR_NULL, |
|
.fg = DefaultFG, |
|
.bg = DefaultBG |
|
}, .x = 0, .y = 0, .state = CURSOR_DEFAULT}; |
|
|
|
memset(term.tabs, 0, term.col * sizeof(*term.tabs)); |
|
for (i = TAB; i < term.col; i += TAB) |
|
term.tabs[i] = 1; |
|
term.top = 0, term.bot = term.row - 1; |
|
term.mode = MODE_WRAP; |
|
tclearregion(0, 0, term.col-1, term.row-1); |
|
} |
|
|
|
void |
|
tnew(int col, int row) { |
|
/* set screen size */ |
|
term.row = row, term.col = col; |
|
term.line = malloc(term.row * sizeof(Line)); |
|
term.alt = malloc(term.row * sizeof(Line)); |
|
term.dirty = malloc(term.row * sizeof(*term.dirty)); |
|
term.tabs = malloc(term.col * sizeof(*term.tabs)); |
|
|
|
for(row = 0; row < term.row; row++) { |
|
term.line[row] = malloc(term.col * sizeof(Glyph)); |
|
term.alt [row] = malloc(term.col * sizeof(Glyph)); |
|
term.dirty[row] = 0; |
|
} |
|
memset(term.tabs, 0, term.col * sizeof(*term.tabs)); |
|
/* setup screen */ |
|
treset(); |
|
} |
|
|
|
void |
|
tswapscreen(void) { |
|
Line* tmp = term.line; |
|
term.line = term.alt; |
|
term.alt = tmp; |
|
term.mode ^= MODE_ALTSCREEN; |
|
tfulldirt(); |
|
} |
|
|
|
void |
|
tscrolldown(int orig, int n) { |
|
int i; |
|
Line temp; |
|
|
|
LIMIT(n, 0, term.bot-orig+1); |
|
|
|
tclearregion(0, term.bot-n+1, term.col-1, term.bot); |
|
|
|
for(i = term.bot; i >= orig+n; i--) { |
|
temp = term.line[i]; |
|
term.line[i] = term.line[i-n]; |
|
term.line[i-n] = temp; |
|
|
|
term.dirty[i] = 1; |
|
term.dirty[i-n] = 1; |
|
} |
|
|
|
selscroll(orig, n); |
|
} |
|
|
|
void |
|
tscrollup(int orig, int n) { |
|
int i; |
|
Line temp; |
|
LIMIT(n, 0, term.bot-orig+1); |
|
|
|
tclearregion(0, orig, term.col-1, orig+n-1); |
|
|
|
for(i = orig; i <= term.bot-n; i++) { |
|
temp = term.line[i]; |
|
term.line[i] = term.line[i+n]; |
|
term.line[i+n] = temp; |
|
|
|
term.dirty[i] = 1; |
|
term.dirty[i+n] = 1; |
|
} |
|
|
|
selscroll(orig, -n); |
|
} |
|
|
|
void |
|
selscroll(int orig, int n) { |
|
if(sel.bx == -1) |
|
return; |
|
|
|
if(BETWEEN(sel.by, orig, term.bot) || BETWEEN(sel.ey, orig, term.bot)) { |
|
if((sel.by += n) > term.bot || (sel.ey += n) < term.top) { |
|
sel.bx = -1; |
|
return; |
|
} |
|
if(sel.by < term.top) { |
|
sel.by = term.top; |
|
sel.bx = 0; |
|
} |
|
if(sel.ey > term.bot) { |
|
sel.ey = term.bot; |
|
sel.ex = term.col; |
|
} |
|
sel.b.y = sel.by, sel.b.x = sel.bx; |
|
sel.e.y = sel.ey, sel.e.x = sel.ex; |
|
} |
|
} |
|
|
|
void |
|
tnewline(int first_col) { |
|
int y = term.c.y; |
|
if(y == term.bot) |
|
tscrollup(term.top, 1); |
|
else |
|
y++; |
|
tmoveto(first_col ? 0 : term.c.x, y); |
|
} |
|
|
|
void |
|
csiparse(void) { |
|
/* int noarg = 1; */ |
|
char *p = csiescseq.buf; |
|
|
|
csiescseq.narg = 0; |
|
if(*p == '?') |
|
csiescseq.priv = 1, p++; |
|
|
|
while(p < csiescseq.buf+csiescseq.len) { |
|
while(isdigit(*p)) { |
|
csiescseq.arg[csiescseq.narg] *= 10; |
|
csiescseq.arg[csiescseq.narg] += *p++ - '0'/*, noarg = 0 */; |
|
} |
|
if(*p == ';' && csiescseq.narg+1 < ESC_ARG_SIZ) |
|
csiescseq.narg++, p++; |
|
else { |
|
csiescseq.mode = *p; |
|
csiescseq.narg++; |
|
return; |
|
} |
|
} |
|
} |
|
|
|
void |
|
tmoveto(int x, int y) { |
|
LIMIT(x, 0, term.col-1); |
|
LIMIT(y, 0, term.row-1); |
|
term.c.state &= ~CURSOR_WRAPNEXT; |
|
term.c.x = x; |
|
term.c.y = y; |
|
} |
|
|
|
void |
|
tsetchar(char *c) { |
|
term.dirty[term.c.y] = 1; |
|
term.line[term.c.y][term.c.x] = term.c.attr; |
|
memcpy(term.line[term.c.y][term.c.x].c, c, UTF_SIZ); |
|
term.line[term.c.y][term.c.x].state |= GLYPH_SET; |
|
} |
|
|
|
void |
|
tclearregion(int x1, int y1, int x2, int y2) { |
|
int x, y, temp; |
|
|
|
if(x1 > x2) |
|
temp = x1, x1 = x2, x2 = temp; |
|
if(y1 > y2) |
|
temp = y1, y1 = y2, y2 = temp; |
|
|
|
LIMIT(x1, 0, term.col-1); |
|
LIMIT(x2, 0, term.col-1); |
|
LIMIT(y1, 0, term.row-1); |
|
LIMIT(y2, 0, term.row-1); |
|
|
|
for(y = y1; y <= y2; y++) { |
|
term.dirty[y] = 1; |
|
for(x = x1; x <= x2; x++) |
|
term.line[y][x].state = 0; |
|
} |
|
} |
|
|
|
void |
|
tdeletechar(int n) { |
|
int src = term.c.x + n; |
|
int dst = term.c.x; |
|
int size = term.col - src; |
|
|
|
term.dirty[term.c.y] = 1; |
|
|
|
if(src >= term.col) { |
|
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y); |
|
return; |
|
} |
|
memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src], size * sizeof(Glyph)); |
|
tclearregion(term.col-n, term.c.y, term.col-1, term.c.y); |
|
} |
|
|
|
void |
|
tinsertblank(int n) { |
|
int src = term.c.x; |
|
int dst = src + n; |
|
int size = term.col - dst; |
|
|
|
term.dirty[term.c.y] = 1; |
|
|
|
if(dst >= term.col) { |
|
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y); |
|
return; |
|
} |
|
memmove(&term.line[term.c.y][dst], &term.line[term.c.y][src], size * sizeof(Glyph)); |
|
tclearregion(src, term.c.y, dst - 1, term.c.y); |
|
} |
|
|
|
void |
|
tinsertblankline(int n) { |
|
if(term.c.y < term.top || term.c.y > term.bot) |
|
return; |
|
|
|
tscrolldown(term.c.y, n); |
|
} |
|
|
|
void |
|
tdeleteline(int n) { |
|
if(term.c.y < term.top || term.c.y > term.bot) |
|
return; |
|
|
|
tscrollup(term.c.y, n); |
|
} |
|
|
|
void |
|
tsetattr(int *attr, int l) { |
|
int i; |
|
|
|
for(i = 0; i < l; i++) { |
|
switch(attr[i]) { |
|
case 0: |
|
term.c.attr.mode &= ~(ATTR_REVERSE | ATTR_UNDERLINE | ATTR_BOLD); |
|
term.c.attr.fg = DefaultFG; |
|
term.c.attr.bg = DefaultBG; |
|
break; |
|
case 1: |
|
term.c.attr.mode |= ATTR_BOLD; |
|
break; |
|
case 3: /* enter standout (highlight) mode TODO: make it italic */ |
|
term.c.attr.mode |= ATTR_REVERSE; |
|
break; |
|
case 4: |
|
term.c.attr.mode |= ATTR_UNDERLINE; |
|
break; |
|
case 7: |
|
term.c.attr.mode |= ATTR_REVERSE; |
|
break; |
|
case 22: |
|
term.c.attr.mode &= ~ATTR_BOLD; |
|
break; |
|
case 23: /* leave standout (highlight) mode TODO: make it italic */ |
|
term.c.attr.mode &= ~ATTR_REVERSE; |
|
break; |
|
case 24: |
|
term.c.attr.mode &= ~ATTR_UNDERLINE; |
|
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.fg = attr[i] - 100 + 8; |
|
else |
|
fprintf(stderr, "erresc(default): gfx attr %d unknown\n", attr[i]), csidump(); |
|
break; |
|
} |
|
} |
|
} |
|
|
|
void |
|
tsetscroll(int t, int b) { |
|
int temp; |
|
|
|
LIMIT(t, 0, term.row-1); |
|
LIMIT(b, 0, term.row-1); |
|
if(t > b) { |
|
temp = t; |
|
t = b; |
|
b = temp; |
|
} |
|
term.top = t; |
|
term.bot = b; |
|
} |
|
|
|
#define MODBIT(x, set, bit) ((set) ? ((x) |= (bit)) : ((x) &= ~(bit))) |
|
|
|
void |
|
tsetmode(bool priv, bool set, int *args, int narg) { |
|
int *lim, mode; |
|
|
|
for (lim = args + narg; args < lim; ++args) { |
|
if(priv) { |
|
switch(*args) { |
|
case 1: |
|
MODBIT(term.mode, set, MODE_APPKEYPAD); |
|
break; |
|
case 5: /* DECSCNM -- Reverve video */ |
|
mode = term.mode; |
|
MODBIT(term.mode,set, MODE_REVERSE); |
|
if (mode != term.mode) |
|
redraw(); |
|
break; |
|
case 7: |
|
MODBIT(term.mode, set, MODE_WRAP); |
|
break; |
|
case 20: |
|
MODBIT(term.mode, set, MODE_CRLF); |
|
break; |
|
case 12: /* att610 -- Start blinking cursor (IGNORED) */ |
|
break; |
|
case 25: |
|
MODBIT(term.c.state, !set, CURSOR_HIDE); |
|
break; |
|
case 1000: /* 1000,1002: enable xterm mouse report */ |
|
MODBIT(term.mode, set, MODE_MOUSEBTN); |
|
break; |
|
case 1002: |
|
MODBIT(term.mode, set, MODE_MOUSEMOTION); |
|
break; |
|
case 1049: /* = 1047 and 1048 */ |
|
case 47: |
|
case 1047: |
|
if(IS_SET(MODE_ALTSCREEN)) |
|
tclearregion(0, 0, term.col-1, term.row-1); |
|
if ((set && !IS_SET(MODE_ALTSCREEN)) || |
|
(!set && IS_SET(MODE_ALTSCREEN))) { |
|
tswapscreen(); |
|
} |
|
if (*args != 1049) |
|
break; |
|
/* pass through */ |
|
case 1048: |
|
tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD); |
|
break; |
|
default: |
|
fprintf(stderr, |
|
"erresc: unknown private set/reset mode %d\n", |
|
*args); |
|
break; |
|
} |
|
} else { |
|
switch(*args) { |
|
case 4: |
|
MODBIT(term.mode, set, MODE_INSERT); |
|
break; |
|
default: |
|
fprintf(stderr, |
|
"erresc: unknown set/reset mode %d\n", |
|
*args); |
|
break; |
|
} |
|
} |
|
} |
|
} |
|
#undef MODBIT |
|
|
|
|
|
void |
|
csihandle(void) { |
|
switch(csiescseq.mode) { |
|
default: |
|
unknown: |
|
fprintf(stderr, "erresc: unknown csi "); |
|
csidump(); |
|
/* die(""); */ |
|
break; |
|
case '@': /* ICH -- Insert <n> blank char */ |
|
DEFAULT(csiescseq.arg[0], 1); |
|
tinsertblank(csiescseq.arg[0]); |
|
break; |
|
case 'A': /* CUU -- Cursor <n> Up */ |
|
case 'e': |
|
DEFAULT(csiescseq.arg[0], 1); |
|
tmoveto(term.c.x, term.c.y-csiescseq.arg[0]); |
|
break; |
|
case 'B': /* CUD -- Cursor <n> Down */ |
|
DEFAULT(csiescseq.arg[0], 1); |
|
tmoveto(term.c.x, term.c.y+csiescseq.arg[0]); |
|
break; |
|
case 'C': /* CUF -- Cursor <n> Forward */ |
|
case 'a': |
|
DEFAULT(csiescseq.arg[0], 1); |
|
tmoveto(term.c.x+csiescseq.arg[0], term.c.y); |
|
break; |
|
case 'D': /* CUB -- Cursor <n> Backward */ |
|
DEFAULT(csiescseq.arg[0], 1); |
|
tmoveto(term.c.x-csiescseq.arg[0], term.c.y); |
|
break; |
|
case 'E': /* CNL -- Cursor <n> Down and first col */ |
|
DEFAULT(csiescseq.arg[0], 1); |
|
tmoveto(0, term.c.y+csiescseq.arg[0]); |
|
break; |
|
case 'F': /* CPL -- Cursor <n> Up and first col */ |
|
DEFAULT(csiescseq.arg[0], 1); |
|
tmoveto(0, term.c.y-csiescseq.arg[0]); |
|
break; |
|
case 'g': /* TBC -- Tabulation clear */ |
|
switch (csiescseq.arg[0]) { |
|
case 0: /* clear current tab stop */ |
|
term.tabs[term.c.x] = 0; |
|
break; |
|
case 3: /* clear all the tabs */ |
|
memset(term.tabs, 0, term.col * sizeof(*term.tabs)); |
|
break; |
|
default: |
|
goto unknown; |
|
} |
|
break; |
|
case 'G': /* CHA -- Move to <col> */ |
|
case '`': /* XXX: HPA -- same? */ |
|
DEFAULT(csiescseq.arg[0], 1); |
|
tmoveto(csiescseq.arg[0]-1, term.c.y); |
|
break; |
|
case 'H': /* CUP -- Move to <row> <col> */ |
|
case 'f': /* XXX: HVP -- same? */ |
|
DEFAULT(csiescseq.arg[0], 1); |
|
DEFAULT(csiescseq.arg[1], 1); |
|
tmoveto(csiescseq.arg[1]-1, csiescseq.arg[0]-1); |
|
break; |
|
case 'I': /* CHT -- Cursor Forward Tabulation <n> tab stops */ |
|
DEFAULT(csiescseq.arg[0], 1); |
|
while (csiescseq.arg[0]--) |
|
tputtab(1); |
|
break; |
|
case 'J': /* ED -- Clear screen */ |
|
sel.bx = -1; |
|
switch(csiescseq.arg[0]) { |
|
case 0: /* below */ |
|
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y); |
|
if(term.c.y < term.row-1) |
|
tclearregion(0, term.c.y+1, term.col-1, term.row-1); |
|
break; |
|
case 1: /* above */ |
|
if(term.c.y > 1) |
|
tclearregion(0, 0, term.col-1, term.c.y-1); |
|
tclearregion(0, term.c.y, term.c.x, term.c.y); |
|
break; |
|
case 2: /* all */ |
|
tclearregion(0, 0, term.col-1, term.row-1); |
|
break; |
|
default: |
|
goto unknown; |
|
} |
|
break; |
|
case 'K': /* EL -- Clear line */ |
|
switch(csiescseq.arg[0]) { |
|
case 0: /* right */ |
|
tclearregion(term.c.x, term.c.y, term.col-1, term.c.y); |
|
break; |
|
case 1: /* left */ |
|
tclearregion(0, term.c.y, term.c.x, term.c.y); |
|
break; |
|
case 2: /* all */ |
|
tclearregion(0, term.c.y, term.col-1, term.c.y); |
|
break; |
|
} |
|
break; |
|
case 'S': /* SU -- Scroll <n> line up */ |
|
DEFAULT(csiescseq.arg[0], 1); |
|
tscrollup(term.top, csiescseq.arg[0]); |
|
break; |
|
case 'T': /* SD -- Scroll <n> line down */ |
|
DEFAULT(csiescseq.arg[0], 1); |
|
tscrolldown(term.top, csiescseq.arg[0]); |
|
break; |
|
case 'L': /* IL -- Insert <n> blank lines */ |
|
DEFAULT(csiescseq.arg[0], 1); |
|
tinsertblankline(csiescseq.arg[0]); |
|
break; |
|
case 'l': /* RM -- Reset Mode */ |
|
tsetmode(csiescseq.priv, 0, csiescseq.arg, csiescseq.narg); |
|
break; |
|
case 'M': /* DL -- Delete <n> lines */ |
|
DEFAULT(csiescseq.arg[0], 1); |
|
tdeleteline(csiescseq.arg[0]); |
|
break; |
|
case 'X': /* ECH -- Erase <n> char */ |
|
DEFAULT(csiescseq.arg[0], 1); |
|
tclearregion(term.c.x, term.c.y, term.c.x + csiescseq.arg[0], term.c.y); |
|
break; |
|
case 'P': /* DCH -- Delete <n> char */ |
|
DEFAULT(csiescseq.arg[0], 1); |
|
tdeletechar(csiescseq.arg[0]); |
|
break; |
|
case 'Z': /* CBT -- Cursor Backward Tabulation <n> tab stops */ |
|
DEFAULT(csiescseq.arg[0], 1); |
|
while (csiescseq.arg[0]--) |
|
tputtab(0); |
|
break; |
|
case 'd': /* VPA -- Move to <row> */ |
|
DEFAULT(csiescseq.arg[0], 1); |
|
tmoveto(term.c.x, csiescseq.arg[0]-1); |
|
break; |
|
case 'h': /* SM -- Set terminal mode */ |
|
tsetmode(csiescseq.priv, 1, csiescseq.arg, csiescseq.narg); |
|
break; |
|
case 'm': /* SGR -- Terminal attribute (color) */ |
|
tsetattr(csiescseq.arg, csiescseq.narg); |
|
break; |
|
case 'r': /* DECSTBM -- Set Scrolling Region */ |
|
if(csiescseq.priv) |
|
goto unknown; |
|
else { |
|
DEFAULT(csiescseq.arg[0], 1); |
|
DEFAULT(csiescseq.arg[1], term.row); |
|
tsetscroll(csiescseq.arg[0]-1, csiescseq.arg[1]-1); |
|
tmoveto(0, 0); |
|
} |
|
break; |
|
case 's': /* DECSC -- Save cursor position (ANSI.SYS) */ |
|
tcursor(CURSOR_SAVE); |
|
break; |
|
case 'u': /* DECRC -- Restore cursor position (ANSI.SYS) */ |
|
tcursor(CURSOR_LOAD); |
|
break; |
|
} |
|
} |
|
|
|
void |
|
csidump(void) { |
|
int i; |
|
printf("ESC["); |
|
for(i = 0; i < csiescseq.len; i++) { |
|
uint c = csiescseq.buf[i] & 0xff; |
|
if(isprint(c)) putchar(c); |
|
else if(c == '\n') printf("(\\n)"); |
|
else if(c == '\r') printf("(\\r)"); |
|
else if(c == 0x1b) printf("(\\e)"); |
|
else printf("(%02x)", c); |
|
} |
|
putchar('\n'); |
|
} |
|
|
|
void |
|
csireset(void) { |
|
memset(&csiescseq, 0, sizeof(csiescseq)); |
|
} |
|
|
|
void |
|
strhandle(void) { |
|
char *p; |
|
|
|
/* |
|
* TODO: make this being useful in case of color palette change. |
|
*/ |
|
strparse(); |
|
|
|
p = strescseq.buf; |
|
|
|
switch(strescseq.type) { |
|
case ']': /* OSC -- Operating System Command */ |
|
switch(p[0]) { |
|
case '0': |
|
case '1': |
|
case '2': |
|
/* |
|
* TODO: Handle special chars in string, like umlauts. |
|
*/ |
|
if(p[1] == ';') { |
|
XStoreName(xw.dpy, xw.win, strescseq.buf+2); |
|
} |
|
break; |
|
case ';': |
|
XStoreName(xw.dpy, xw.win, strescseq.buf+1); |
|
break; |
|
case '4': /* TODO: Set color (arg0) to "rgb:%hexr/$hexg/$hexb" (arg1) */ |
|
break; |
|
default: |
|
fprintf(stderr, "erresc: unknown str "); |
|
strdump(); |
|
break; |
|
} |
|
break; |
|
case 'P': /* DSC -- Device Control String */ |
|
case '_': /* APC -- Application Program Command */ |
|
case '^': /* PM -- Privacy Message */ |
|
default: |
|
fprintf(stderr, "erresc: unknown str "); |
|
strdump(); |
|
/* die(""); */ |
|
break; |
|
} |
|
} |
|
|
|
void |
|
strparse(void) { |
|
/* |
|
* TODO: Implement parsing like for CSI when required. |
|
* Format: ESC type cmd ';' arg0 [';' argn] ESC \ |
|
*/ |
|
return; |
|
} |
|
|
|
void |
|
strdump(void) { |
|
int i; |
|
printf("ESC%c", strescseq.type); |
|
for(i = 0; i < strescseq.len; i++) { |
|
uint c = strescseq.buf[i] & 0xff; |
|
if(isprint(c)) putchar(c); |
|
else if(c == '\n') printf("(\\n)"); |
|
else if(c == '\r') printf("(\\r)"); |
|
else if(c == 0x1b) printf("(\\e)"); |
|
else printf("(%02x)", c); |
|
} |
|
printf("ESC\\\n"); |
|
} |
|
|
|
void |
|
strreset(void) { |
|
memset(&strescseq, 0, sizeof(strescseq)); |
|
} |
|
|
|
void |
|
tputtab(bool forward) { |
|
unsigned x = term.c.x; |
|
|
|
if (forward) { |
|
if (x == term.col) |
|
return; |
|
for (++x; x < term.col && !term.tabs[x]; ++x) |
|
/* nothing */ ; |
|
} else { |
|
if (x == 0) |
|
return; |
|
for (--x; x > 0 && !term.tabs[x]; --x) |
|
/* nothing */ ; |
|
} |
|
tmoveto(x, term.c.y); |
|
} |
|
|
|
void |
|
tputc(char *c) { |
|
char ascii = *c; |
|
|
|
if (fileio) |
|
putc(ascii, fileio); |
|
if(term.esc & ESC_START) { |
|
if(term.esc & ESC_CSI) { |
|
csiescseq.buf[csiescseq.len++] = ascii; |
|
if(BETWEEN(ascii, 0x40, 0x7E) || csiescseq.len >= ESC_BUF_SIZ) { |
|
term.esc = 0; |
|
csiparse(), csihandle(); |
|
} |
|
} else if(term.esc & ESC_STR) { |
|
switch(ascii) { |
|
case '\033': |
|
term.esc = ESC_START | ESC_STR_END; |
|
break; |
|
case '\a': /* backwards compatibility to xterm */ |
|
term.esc = 0; |
|
strhandle(); |
|
break; |
|
default: |
|
strescseq.buf[strescseq.len++] = ascii; |
|
if (strescseq.len+1 >= STR_BUF_SIZ) { |
|
term.esc = 0; |
|
strhandle(); |
|
} |
|
} |
|
} else if(term.esc & ESC_STR_END) { |
|
term.esc = 0; |
|
if(ascii == '\\') |
|
strhandle(); |
|
} else if(term.esc & ESC_ALTCHARSET) { |
|
switch(ascii) { |
|
case '0': /* Line drawing crap */ |
|
term.c.attr.mode |= ATTR_GFX; |
|
break; |
|
case 'B': /* Back to regular text */ |
|
term.c.attr.mode &= ~ATTR_GFX; |
|
break; |
|
default: |
|
fprintf(stderr, "esc unhandled charset: ESC ( %c\n", ascii); |
|
} |
|
term.esc = 0; |
|
} else { |
|
switch(ascii) { |
|
case '[': |
|
term.esc |= ESC_CSI; |
|
break; |
|
case 'P': /* DCS -- Device Control String */ |
|
case '_': /* APC -- Application Program Command */ |
|
case '^': /* PM -- Privacy Message */ |
|
case ']': /* OSC -- Operating System Command */ |
|
strreset(); |
|
strescseq.type = ascii; |
|
term.esc |= ESC_STR; |
|
break; |
|
case '(': |
|
term.esc |= ESC_ALTCHARSET; |
|
break; |
|
case 'D': /* IND -- Linefeed */ |
|
if(term.c.y == term.bot) |
|
tscrollup(term.top, 1); |
|
else |
|
tmoveto(term.c.x, term.c.y+1); |
|
term.esc = 0; |
|
break; |
|
case 'E': /* NEL -- Next line */ |
|
tnewline(1); /* always go to first col */ |
|
term.esc = 0; |
|
break; |
|
case 'H': /* HTS -- Horizontal tab stop */ |
|
term.tabs[term.c.x] = 1; |
|
term.esc = 0; |
|
break; |
|
case 'M': /* RI -- Reverse index */ |
|
if(term.c.y == term.top) |
|
tscrolldown(term.top, 1); |
|
else |
|
tmoveto(term.c.x, term.c.y-1); |
|
term.esc = 0; |
|
break; |
|
case 'c': /* RIS -- Reset to inital state */ |
|
treset(); |
|
term.esc = 0; |
|
break; |
|
case '=': /* DECPAM -- Application keypad */ |
|
term.mode |= MODE_APPKEYPAD; |
|
term.esc = 0; |
|
break; |
|
case '>': /* DECPNM -- Normal keypad */ |
|
term.mode &= ~MODE_APPKEYPAD; |
|
term.esc = 0; |
|
break; |
|
case '7': /* DECSC -- Save Cursor */ |
|
tcursor(CURSOR_SAVE); |
|
term.esc = 0; |
|
break; |
|
case '8': /* DECRC -- Restore Cursor */ |
|
tcursor(CURSOR_LOAD); |
|
term.esc = 0; |
|
break; |
|
case '\\': /* ST -- Stop */ |
|
term.esc = 0; |
|
break; |
|
default: |
|
fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n", |
|
(uchar) ascii, isprint(ascii)?ascii:'.'); |
|
term.esc = 0; |
|
} |
|
} |
|
} else { |
|
if(sel.bx != -1 && BETWEEN(term.c.y, sel.by, sel.ey)) |
|
sel.bx = -1; |
|
switch(ascii) { |
|
case '\t': |
|
tputtab(1); |
|
break; |
|
case '\b': |
|
tmoveto(term.c.x-1, term.c.y); |
|
break; |
|
case '\r': |
|
tmoveto(0, term.c.y); |
|
break; |
|
case '\f': |
|
case '\v': |
|
case '\n': |
|
/* go to first col if the mode is set */ |
|
tnewline(IS_SET(MODE_CRLF)); |
|
break; |
|
case '\a': |
|
if(!(xw.state & WIN_FOCUSED)) |
|
xseturgency(1); |
|
break; |
|
case '\033': |
|
csireset(); |
|
term.esc = ESC_START; |
|
break; |
|
default: |
|
if(IS_SET(MODE_WRAP) && term.c.state & CURSOR_WRAPNEXT) |
|
tnewline(1); /* always go to first col */ |
|
tsetchar(c); |
|
if(term.c.x+1 < term.col) |
|
tmoveto(term.c.x+1, term.c.y); |
|
else |
|
term.c.state |= CURSOR_WRAPNEXT; |
|
} |
|
} |
|
} |
|
|
|
int |
|
tresize(int col, int row) { |
|
int i, x; |
|
int minrow = MIN(row, term.row); |
|
int mincol = MIN(col, term.col); |
|
int slide = term.c.y - row + 1; |
|
|
|
if(col < 1 || row < 1) |
|
return 0; |
|
|
|
/* free unneeded rows */ |
|
i = 0; |
|
if(slide > 0) { |
|
/* slide screen to keep cursor where we expect it - |
|
* tscrollup would work here, but we can optimize to |
|
* memmove because we're freeing the earlier lines */ |
|
for(/* i = 0 */; i < slide; i++) { |
|
free(term.line[i]); |
|
free(term.alt[i]); |
|
} |
|
memmove(term.line, term.line + slide, row * sizeof(Line)); |
|
memmove(term.alt, term.alt + slide, row * sizeof(Line)); |
|
} |
|
for(i += row; i < term.row; i++) { |
|
free(term.line[i]); |
|
free(term.alt[i]); |
|
} |
|
|
|
/* resize to new height */ |
|
term.line = realloc(term.line, row * sizeof(Line)); |
|
term.alt = realloc(term.alt, row * sizeof(Line)); |
|
term.dirty = realloc(term.dirty, row * sizeof(*term.dirty)); |
|
term.tabs = realloc(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] = realloc(term.line[i], col * sizeof(Glyph)); |
|
term.alt[i] = realloc(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] = calloc(col, sizeof(Glyph)); |
|
term.alt [i] = calloc(col, sizeof(Glyph)); |
|
} |
|
if (col > term.col) { |
|
bool *bp = term.tabs + term.col; |
|
|
|
memset(bp, 0, sizeof(*term.tabs) * (col - term.col)); |
|
while (--bp > term.tabs && !*bp) |
|
/* nothing */ ; |
|
for (bp += TAB; bp < term.tabs + col; bp += TAB) |
|
*bp = 1; |
|
} |
|
/* update terminal size */ |
|
term.col = col, term.row = row; |
|
/* make use of the LIMIT in tmoveto */ |
|
tmoveto(term.c.x, term.c.y); |
|
/* reset scrolling region */ |
|
tsetscroll(0, row-1); |
|
|
|
return (slide > 0); |
|
} |
|
|
|
void |
|
xresize(int col, int row) { |
|
xw.w = MAX(1, 2*BORDER + col * xw.cw); |
|
xw.h = MAX(1, 2*BORDER + row * xw.ch); |
|
} |
|
|
|
void |
|
xloadcols(void) { |
|
int i, r, g, b; |
|
XColor color; |
|
ulong white = WhitePixel(xw.dpy, xw.scr); |
|
|
|
/* load colors [0-15] colors and [256-LEN(colorname)[ (config.h) */ |
|
for(i = 0; i < LEN(colorname); i++) { |
|
if(!colorname[i]) |
|
continue; |
|
if(!XAllocNamedColor(xw.dpy, xw.cmap, colorname[i], &color, &color)) { |
|
dc.col[i] = white; |
|
fprintf(stderr, "Could not allocate color '%s'\n", colorname[i]); |
|
} else |
|
dc.col[i] = color.pixel; |
|
} |
|
|
|
/* load colors [16-255] ; same colors as xterm */ |
|
for(i = 16, r = 0; r < 6; r++) |
|
for(g = 0; g < 6; g++) |
|
for(b = 0; b < 6; b++) { |
|
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(!XAllocColor(xw.dpy, xw.cmap, &color)) { |
|
dc.col[i] = white; |
|
fprintf(stderr, "Could not allocate color %d\n", i); |
|
} else |
|
dc.col[i] = color.pixel; |
|
i++; |
|
} |
|
|
|
for(r = 0; r < 24; r++, i++) { |
|
color.red = color.green = color.blue = 0x0808 + 0x0a0a * r; |
|
if (!XAllocColor(xw.dpy, xw.cmap, &color)) { |
|
dc.col[i] = white; |
|
fprintf(stderr, "Could not allocate color %d\n", i); |
|
} else |
|
dc.col[i] = color.pixel; |
|
} |
|
} |
|
|
|
void |
|
xclear(int x1, int y1, int x2, int y2) { |
|
XSetForeground(xw.dpy, dc.gc, dc.col[IS_SET(MODE_REVERSE) ? DefaultFG : DefaultBG]); |
|
XFillRectangle(xw.dpy, xw.buf, dc.gc, |
|
BORDER + x1 * xw.cw, BORDER + y1 * xw.ch, |
|
(x2-x1+1) * xw.cw, (y2-y1+1) * xw.ch); |
|
} |
|
|
|
void |
|
xhints(void) { |
|
XClassHint class = {opt_class ? opt_class : TNAME, TNAME}; |
|
XWMHints wm = {.flags = InputHint, .input = 1}; |
|
XSizeHints *sizeh = NULL; |
|
|
|
sizeh = XAllocSizeHints(); |
|
if(xw.isfixed == False) { |
|
sizeh->flags = PSize | PResizeInc | PBaseSize; |
|
sizeh->height = xw.h; |
|
sizeh->width = xw.w; |
|
sizeh->height_inc = xw.ch; |
|
sizeh->width_inc = xw.cw; |
|
sizeh->base_height = 2*BORDER; |
|
sizeh->base_width = 2*BORDER; |
|
} else { |
|
sizeh->flags = PMaxSize | PMinSize; |
|
sizeh->min_width = sizeh->max_width = xw.fw; |
|
sizeh->min_height = sizeh->max_height = xw.fh; |
|
} |
|
|
|
XSetWMProperties(xw.dpy, xw.win, NULL, NULL, NULL, 0, sizeh, &wm, &class); |
|
XFree(sizeh); |
|
} |
|
|
|
XFontSet |
|
xinitfont(char *fontstr) { |
|
XFontSet set; |
|
char *def, **missing; |
|
int n; |
|
|
|
missing = NULL; |
|
set = XCreateFontSet(xw.dpy, fontstr, &missing, &n, &def); |
|
if(missing) { |
|
while(n--) |
|
fprintf(stderr, "st: missing fontset: %s\n", missing[n]); |
|
XFreeStringList(missing); |
|
} |
|
return set; |
|
} |
|
|
|
void |
|
xgetfontinfo(XFontSet set, int *ascent, int *descent, short *lbearing, short *rbearing) { |
|
XFontStruct **xfonts; |
|
char **font_names; |
|
int i, n; |
|
|
|
*ascent = *descent = *lbearing = *rbearing = 0; |
|
n = XFontsOfFontSet(set, &xfonts, &font_names); |
|
for(i = 0; i < n; i++) { |
|
*ascent = MAX(*ascent, (*xfonts)->ascent); |
|
*descent = MAX(*descent, (*xfonts)->descent); |
|
*lbearing = MAX(*lbearing, (*xfonts)->min_bounds.lbearing); |
|
*rbearing = MAX(*rbearing, (*xfonts)->max_bounds.rbearing); |
|
xfonts++; |
|
} |
|
} |
|
|
|
void |
|
initfonts(char *fontstr, char *bfontstr) { |
|
if((dc.font.set = xinitfont(fontstr)) == NULL || |
|
(dc.bfont.set = xinitfont(bfontstr)) == NULL) |
|
die("Can't load font %s\n", dc.font.set ? BOLDFONT : FONT); |
|
xgetfontinfo(dc.font.set, &dc.font.ascent, &dc.font.descent, |
|
&dc.font.lbearing, &dc.font.rbearing); |
|
xgetfontinfo(dc.bfont.set, &dc.bfont.ascent, &dc.bfont.descent, |
|
&dc.bfont.lbearing, &dc.bfont.rbearing); |
|
} |
|
|
|
void |
|
xinit(void) { |
|
XSetWindowAttributes attrs; |
|
Cursor cursor; |
|
Window parent; |
|
int sw, sh; |
|
|
|
if(!(xw.dpy = XOpenDisplay(NULL))) |
|
die("Can't open display\n"); |
|
xw.scr = XDefaultScreen(xw.dpy); |
|
|
|
/* 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; |
|
} else { |
|
/* window - default size */ |
|
xw.h = 2*BORDER + term.row * xw.ch; |
|
xw.w = 2*BORDER + term.col * xw.cw; |
|
xw.fw = xw.w; |
|
xw.fh = xw.h; |
|
} |
|
|
|
/* font */ |
|
initfonts(FONT, BOLDFONT); |
|
|
|
/* XXX: Assuming same size for bold font */ |
|
xw.cw = dc.font.rbearing - dc.font.lbearing; |
|
xw.ch = dc.font.ascent + dc.font.descent; |
|
|
|
/* colors */ |
|
xw.cmap = XDefaultColormap(xw.dpy, xw.scr); |
|
xloadcols(); |
|
|
|
attrs.background_pixel = dc.col[DefaultBG]; |
|
attrs.border_pixel = dc.col[DefaultBG]; |
|
attrs.bit_gravity = NorthWestGravity; |
|
attrs.event_mask = FocusChangeMask | KeyPressMask |
|
| ExposureMask | VisibilityChangeMask | StructureNotifyMask |
|
| ButtonMotionMask | ButtonPressMask | ButtonReleaseMask |
|
| EnterWindowMask | LeaveWindowMask; |
|
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.fw, xw.fh, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput, |
|
XDefaultVisual(xw.dpy, xw.scr), |
|
CWBackPixel | CWBorderPixel | CWBitGravity | CWEventMask |
|
| CWColormap, |
|
&attrs); |
|
xw.buf = XdbeAllocateBackBufferName(xw.dpy, xw.win, XdbeCopied); |
|
|
|
|
|
/* input methods */ |
|
xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL); |
|
xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing |
|
| XIMStatusNothing, XNClientWindow, xw.win, |
|
XNFocusWindow, xw.win, NULL); |
|
/* gc */ |
|
dc.gc = XCreateGC(xw.dpy, xw.win, 0, NULL); |
|
|
|
/* white cursor, black outline */ |
|
cursor = XCreateFontCursor(xw.dpy, XC_xterm); |
|
XDefineCursor(xw.dpy, xw.win, cursor); |
|
XRecolorCursor(xw.dpy, cursor, |
|
&(XColor){.red = 0xffff, .green = 0xffff, .blue = 0xffff}, |
|
&(XColor){.red = 0x0000, .green = 0x0000, .blue = 0x0000}); |
|
|
|
xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False); |
|
|
|
XStoreName(xw.dpy, xw.win, opt_title ? opt_title : "st"); |
|
XMapWindow(xw.dpy, xw.win); |
|
xhints(); |
|
XSync(xw.dpy, 0); |
|
} |
|
|
|
void |
|
xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) { |
|
int fg = base.fg, bg = base.bg, temp; |
|
int winx = BORDER+x*xw.cw, winy = BORDER+y*xw.ch + dc.font.ascent, width = charlen*xw.cw; |
|
XFontSet fontset = dc.font.set; |
|
int i; |
|
|
|
/* only switch default fg/bg if term is in RV mode */ |
|
if(IS_SET(MODE_REVERSE)) { |
|
if(fg == DefaultFG) |
|
fg = DefaultBG; |
|
if(bg == DefaultBG) |
|
bg = DefaultFG; |
|
} |
|
|
|
if(base.mode & ATTR_REVERSE) |
|
temp = fg, fg = bg, bg = temp; |
|
|
|
if(base.mode & ATTR_BOLD) { |
|
fg += 8; |
|
fontset = dc.bfont.set; |
|
} |
|
|
|
XSetBackground(xw.dpy, dc.gc, dc.col[bg]); |
|
XSetForeground(xw.dpy, dc.gc, dc.col[fg]); |
|
|
|
if(base.mode & ATTR_GFX) { |
|
for(i = 0; i < bytelen; i++) { |
|
char c = gfx[(uint)s[i] % 256]; |
|
if(c) |
|
s[i] = c; |
|
else if(s[i] > 0x5f) |
|
s[i] -= 0x5f; |
|
} |
|
} |
|
|
|
XmbDrawImageString(xw.dpy, xw.buf, fontset, dc.gc, winx, winy, s, bytelen); |
|
|
|
if(base.mode & ATTR_UNDERLINE) |
|
XDrawLine(xw.dpy, xw.buf, dc.gc, winx, winy+1, winx+width-1, winy+1); |
|
} |
|
|
|
/* copy buffer pixmap to screen pixmap */ |
|
void |
|
xcopy() { |
|
XdbeSwapInfo swpinfo[1] = {{xw.win, XdbeCopied}}; |
|
XdbeSwapBuffers(xw.dpy, swpinfo, 1); |
|
|
|
} |
|
|
|
void |
|
xdrawcursor(void) { |
|
static int oldx = 0; |
|
static int oldy = 0; |
|
int sl; |
|
Glyph g = {{' '}, ATTR_NULL, DefaultBG, DefaultCS, 0}; |
|
|
|
LIMIT(oldx, 0, term.col-1); |
|
LIMIT(oldy, 0, term.row-1); |
|
|
|
if(term.line[term.c.y][term.c.x].state & GLYPH_SET) |
|
memcpy(g.c, term.line[term.c.y][term.c.x].c, UTF_SIZ); |
|
|
|
/* remove the old cursor */ |
|
if(term.line[oldy][oldx].state & GLYPH_SET) { |
|
sl = utf8size(term.line[oldy][oldx].c); |
|
xdraws(term.line[oldy][oldx].c, term.line[oldy][oldx], oldx, oldy, 1, sl); |
|
} else |
|
xclear(oldx, oldy, oldx, oldy); |
|
|
|
xcopy(oldx, oldy, 1, 1); |
|
|
|
/* draw the new one */ |
|
if(!(term.c.state & CURSOR_HIDE)) { |
|
if(!(xw.state & WIN_FOCUSED)) |
|
g.bg = DefaultUCS; |
|
|
|
if(IS_SET(MODE_REVERSE)) |
|
g.mode |= ATTR_REVERSE, g.fg = DefaultCS, g.bg = DefaultFG; |
|
|
|
sl = utf8size(g.c); |
|
xdraws(g.c, g, term.c.x, term.c.y, 1, sl); |
|
oldx = term.c.x, oldy = term.c.y; |
|
} |
|
|
|
xcopy(term.c.x, term.c.y, 1, 1); |
|
} |
|
|
|
void |
|
redraw(void) { |
|
struct timespec tv = {0, REDRAW_TIMEOUT * 1000}; |
|
tfulldirt(); |
|
draw(); |
|
nanosleep(&tv, NULL); |
|
} |
|
|
|
void |
|
draw() { |
|
drawregion(0, 0, term.col, term.row); |
|
xcopy(); |
|
gettimeofday(&xw.lastdraw, NULL); |
|
} |
|
|
|
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]; |
|
|
|
if(!(xw.state & WIN_VISIBLE)) |
|
return; |
|
|
|
for(y = y1; y < y2; y++) { |
|
if(!term.dirty[y]) |
|
continue; |
|
xclear(0, y, term.col, y); |
|
term.dirty[y] = 0; |
|
base = term.line[y][0]; |
|
ic = ib = ox = 0; |
|
for(x = x1; x < x2; x++) { |
|
new = term.line[y][x]; |
|
if(sel.bx != -1 && *(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; |
|
} |
|
xcopy(); |
|
} |
|
|
|
void |
|
visibility(XEvent *ev) { |
|
XVisibilityEvent *e = &ev->xvisibility; |
|
if(e->state == VisibilityFullyObscured) |
|
xw.state &= ~WIN_VISIBLE; |
|
else if(!(xw.state & WIN_VISIBLE)) |
|
/* need a full redraw for next Expose, not just a buf copy */ |
|
xw.state |= WIN_VISIBLE | WIN_REDRAW; |
|
} |
|
|
|
void |
|
unmap(XEvent *ev) { |
|
xw.state &= ~WIN_VISIBLE; |
|
} |
|
|
|
void |
|
xseturgency(int add) { |
|
XWMHints *h = XGetWMHints(xw.dpy, xw.win); |
|
h->flags = add ? (h->flags | XUrgencyHint) : (h->flags & ~XUrgencyHint); |
|
XSetWMHints(xw.dpy, xw.win, h); |
|
XFree(h); |
|
} |
|
|
|
void |
|
focus(XEvent *ev) { |
|
if(ev->type == FocusIn) { |
|
xw.state |= WIN_FOCUSED; |
|
xseturgency(0); |
|
} else |
|
xw.state &= ~WIN_FOCUSED; |
|
draw(); |
|
} |
|
|
|
char* |
|
kmap(KeySym k, uint state) { |
|
int i; |
|
state &= ~Mod2Mask; |
|
for(i = 0; i < LEN(key); i++) { |
|
uint mask = key[i].mask; |
|
if(key[i].k == k && ((state & mask) == mask || (mask == XK_NO_MOD && !state))) |
|
return (char*)key[i].s; |
|
} |
|
return NULL; |
|
} |
|
|
|
void |
|
kpress(XEvent *ev) { |
|
XKeyEvent *e = &ev->xkey; |
|
KeySym ksym; |
|
char buf[32]; |
|
char *customkey; |
|
int len; |
|
int meta; |
|
int shift; |
|
Status status; |
|
|
|
meta = e->state & Mod1Mask; |
|
shift = e->state & ShiftMask; |
|
len = XmbLookupString(xw.xic, e, buf, sizeof(buf), &ksym, &status); |
|
|
|
/* 1. custom keys from config.h */ |
|
if((customkey = kmap(ksym, e->state))) |
|
ttywrite(customkey, strlen(customkey)); |
|
/* 2. hardcoded (overrides X lookup) */ |
|
else |
|
switch(ksym) { |
|
case XK_Up: |
|
case XK_Down: |
|
case XK_Left: |
|
case XK_Right: |
|
/* XXX: shift up/down doesn't work */ |
|
sprintf(buf, "\033%c%c", IS_SET(MODE_APPKEYPAD) ? 'O' : '[', (shift ? "dacb":"DACB")[ksym - XK_Left]); |
|
ttywrite(buf, 3); |
|
break; |
|
case XK_Insert: |
|
if(shift) |
|
selpaste(); |
|
break; |
|
case XK_Return: |
|
if(IS_SET(MODE_CRLF)) |
|
ttywrite("\r\n", 2); |
|
else |
|
ttywrite("\r", 1); |
|
break; |
|
/* 3. X lookup */ |
|
default: |
|
if(len > 0) { |
|
if(meta && len == 1) |
|
ttywrite("\033", 1); |
|
ttywrite(buf, len); |
|
} |
|
break; |
|
} |
|
} |
|
|
|
void |
|
cmessage(XEvent *e) { |
|
/* See xembed specs |
|
http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html */ |
|
if (e->xclient.message_type == xw.xembed && e->xclient.format == 32) { |
|
if (e->xclient.data.l[1] == XEMBED_FOCUS_IN) { |
|
xw.state |= WIN_FOCUSED; |
|
xseturgency(0); |
|
} else if (e->xclient.data.l[1] == XEMBED_FOCUS_OUT) { |
|
xw.state &= ~WIN_FOCUSED; |
|
} |
|
draw(); |
|
} |
|
} |
|
|
|
void |
|
resize(XEvent *e) { |
|
int col, row; |
|
|
|
if(e->xconfigure.width == xw.w && e->xconfigure.height == xw.h) |
|
return; |
|
|
|
xw.w = e->xconfigure.width; |
|
xw.h = e->xconfigure.height; |
|
col = (xw.w - 2*BORDER) / xw.cw; |
|
row = (xw.h - 2*BORDER) / xw.ch; |
|
if(col == term.col && row == term.row) |
|
return; |
|
if(tresize(col, row)) |
|
draw(); |
|
ttyresize(col, row); |
|
xresize(col, row); |
|
} |
|
|
|
bool |
|
last_draw_too_old(void) { |
|
struct timeval now; |
|
gettimeofday(&now, NULL); |
|
return TIMEDIFF(now, xw.lastdraw) >= DRAW_TIMEOUT/1000; |
|
} |
|
|
|
void |
|
run(void) { |
|
XEvent ev; |
|
fd_set rfd; |
|
int xfd = XConnectionNumber(xw.dpy); |
|
struct timeval timeout = {0}; |
|
bool stuff_to_print = 0; |
|
|
|
for(;;) { |
|
FD_ZERO(&rfd); |
|
FD_SET(cmdfd, &rfd); |
|
FD_SET(xfd, &rfd); |
|
timeout.tv_sec = 0; |
|
timeout.tv_usec = SELECT_TIMEOUT; |
|
if(select(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, &timeout) < 0) { |
|
if(errno == EINTR) |
|
continue; |
|
die("select failed: %s\n", SERRNO); |
|
} |
|
if(FD_ISSET(cmdfd, &rfd)) { |
|
ttyread(); |
|
stuff_to_print = 1; |
|
} |
|
|
|
if(stuff_to_print && last_draw_too_old()) { |
|
stuff_to_print = 0; |
|
draw(); |
|
} |
|
|
|
while(XPending(xw.dpy)) { |
|
XNextEvent(xw.dpy, &ev); |
|
if(XFilterEvent(&ev, xw.win)) |
|
continue; |
|
if(handler[ev.type]) |
|
(handler[ev.type])(&ev); |
|
} |
|
} |
|
} |
|
|
|
int |
|
main(int argc, char *argv[]) { |
|
int i, bitm, xr, yr; |
|
unsigned int wr, hr; |
|
|
|
xw.fw = xw.fh = xw.fx = xw.fy = 0; |
|
|
|
for(i = 1; i < argc; i++) { |
|
switch(argv[i][0] != '-' || argv[i][2] ? -1 : argv[i][1]) { |
|
case 't': |
|
if(++i < argc) opt_title = argv[i]; |
|
break; |
|
case 'c': |
|
if(++i < argc) opt_class = argv[i]; |
|
break; |
|
case 'w': |
|
if(++i < argc) opt_embed = argv[i]; |
|
break; |
|
case 'f': |
|
if (++i < argc) opt_io = argv[i]; |
|
break; |
|
case 'e': |
|
/* eat every remaining arguments */ |
|
if(++i < argc) opt_cmd = &argv[i]; |
|
goto run; |
|
case 'g': |
|
if(++i >= argc) |
|
break; |
|
|
|
bitm = XParseGeometry(argv[i], &xr, &yr, &wr, &hr); |
|
if(bitm & XValue) |
|
xw.fx = xr; |
|
if(bitm & YValue) |
|
xw.fy = yr; |
|
if(bitm & WidthValue) |
|
xw.fw = (int)wr; |
|
if(bitm & HeightValue) |
|
xw.fh = (int)hr; |
|
if(bitm & XNegative && xw.fx == 0) |
|
xw.fx = -1; |
|
if(bitm & XNegative && xw.fy == 0) |
|
xw.fy = -1; |
|
|
|
if(xw.fh != 0 && xw.fw != 0) |
|
xw.isfixed = True; |
|
break; |
|
case 'v': |
|
default: |
|
die(USAGE); |
|
} |
|
} |
|
|
|
run: |
|
setlocale(LC_CTYPE, ""); |
|
tnew(80, 24); |
|
ttynew(); |
|
xinit(); |
|
selinit(); |
|
run(); |
|
return 0; |
|
} |
|
|
|
|