diff options
| -rw-r--r-- | config.def.h | 6 | ||||
| -rw-r--r-- | patches/st-appsync-20200618-b27a383.diff | 259 | ||||
| -rw-r--r-- | st.c | 48 | ||||
| -rw-r--r-- | st.info | 1 | ||||
| -rw-r--r-- | x.c | 2454 |
5 files changed, 2 insertions, 2766 deletions
diff --git a/config.def.h b/config.def.h index 7d6e4d8..224c236 100644 --- a/config.def.h +++ b/config.def.h @@ -63,12 +63,6 @@ static double minlatency = 8; static double maxlatency = 33; /* - * Synchronized-Update timeout in ms - * https://gitlab.com/gnachman/iterm2/-/wikis/synchronized-updates-spec - */ -static uint su_timeout = 200; - -/* * blinking timeout (set to 0 to disable blinking) for the terminal blinking * attribute. */ diff --git a/patches/st-appsync-20200618-b27a383.diff b/patches/st-appsync-20200618-b27a383.diff deleted file mode 100644 index 4736325..0000000 --- a/patches/st-appsync-20200618-b27a383.diff +++ /dev/null @@ -1,259 +0,0 @@ -From 8c9c920325fa10440a96736ba58ec647a0365e22 Mon Sep 17 00:00:00 2001 -From: "Avi Halachmi (:avih)" <avihpit@yahoo.com> -Date: Sat, 18 Apr 2020 13:56:11 +0300 -Subject: [PATCH] application-sync: support Synchronized-Updates - -See https://gitlab.com/gnachman/iterm2/-/wikis/synchronized-updates-spec - -In a nutshell: allow an application to suspend drawing until it has -completed some output - so that the terminal will not flicker/tear by -rendering partial content. If the end-of-suspension sequence doesn't -arrive, the terminal bails out after a timeout (default: 200 ms). - -The feature is supported and pioneered by iTerm2. There are probably -very few other terminals or applications which support this feature -currently. - -One notable application which does support it is tmux (master as of -2020-04-18) - where cursor flicker is completely avoided when a pane -has new content. E.g. run in one pane: `while :; do cat x.c; done' -while the cursor is at another pane. - -The terminfo string `Sync' added to `st.info' is also a tmux extension -which tmux detects automatically when `st.info` is installed. - -Notes: - -- Draw-suspension begins on BSU sequence (Begin-Synchronized-Update), - and ends on ESU sequence (End-Synchronized-Update). - -- BSU, ESU are "\033P=1s\033\\", "\033P=2s\033\\" respectively (DCS). - -- SU doesn't support nesting - BSU begins or extends, ESU always ends. - -- ESU without BSU is ignored. - -- BSU after BSU extends (resets the timeout), so an application could - send BSU in a loop and keep drawing suspended - exactly like it can - not-draw anything in a loop. But as soon as it exits/aborted then - drawing is resumed according to the timeout even without ESU. - -- This implementation focuses on ESU and doesn't really care about BSU - in the sense that it tries hard to draw exactly once ESU arrives (if - it's not too soon after the last draw - according to minlatency), - and doesn't try to draw the content just up-to BSU. These two sides - complement eachother - not-drawing on BSU increases the chance that - ESU is not too soon after the last draw. This approach was chosen - because the application's main focus is that ESU indicates to the - terminal that the content is now ready - and that's when we try to - draw. ---- - config.def.h | 6 ++++++ - st.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++-- - st.info | 1 + - x.c | 22 +++++++++++++++++++--- - 4 files changed, 72 insertions(+), 5 deletions(-) - -diff --git a/config.def.h b/config.def.h -index 6f05dce..80d768e 100644 ---- a/config.def.h -+++ b/config.def.h -@@ -56,6 +56,12 @@ int allowwindowops = 0; - static double minlatency = 8; - static double maxlatency = 33; - -+/* -+ * Synchronized-Update timeout in ms -+ * https://gitlab.com/gnachman/iterm2/-/wikis/synchronized-updates-spec -+ */ -+static uint su_timeout = 200; -+ - /* - * blinking timeout (set to 0 to disable blinking) for the terminal blinking - * attribute. -diff --git a/st.c b/st.c -index 76b7e0d..0582e77 100644 ---- a/st.c -+++ b/st.c -@@ -231,6 +231,33 @@ static uchar utfmask[UTF_SIZ + 1] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8}; - static Rune utfmin[UTF_SIZ + 1] = { 0, 0, 0x80, 0x800, 0x10000}; - static Rune utfmax[UTF_SIZ + 1] = {0x10FFFF, 0x7F, 0x7FF, 0xFFFF, 0x10FFFF}; - -+#include <time.h> -+static int su = 0; -+struct timespec sutv; -+ -+static void -+tsync_begin() -+{ -+ clock_gettime(CLOCK_MONOTONIC, &sutv); -+ su = 1; -+} -+ -+static void -+tsync_end() -+{ -+ su = 0; -+} -+ -+int -+tinsync(uint timeout) -+{ -+ struct timespec now; -+ if (su && !clock_gettime(CLOCK_MONOTONIC, &now) -+ && TIMEDIFF(now, sutv) >= timeout) -+ su = 0; -+ return su; -+} -+ - ssize_t - xwrite(int fd, const char *s, size_t len) - { -@@ -818,6 +845,9 @@ ttynew(char *line, char *cmd, char *out, char **args) - return cmdfd; - } - -+static int twrite_aborted = 0; -+int ttyread_pending() { return twrite_aborted; } -+ - size_t - ttyread(void) - { -@@ -826,7 +856,7 @@ ttyread(void) - int ret, written; - - /* append read bytes to unprocessed bytes */ -- ret = read(cmdfd, buf+buflen, LEN(buf)-buflen); -+ ret = twrite_aborted ? 1 : read(cmdfd, buf+buflen, LEN(buf)-buflen); - - switch (ret) { - case 0: -@@ -834,7 +864,7 @@ ttyread(void) - case -1: - die("couldn't read from shell: %s\n", strerror(errno)); - default: -- buflen += ret; -+ buflen += twrite_aborted ? 0 : ret; - written = twrite(buf, buflen, 0); - buflen -= written; - /* keep any incomplete UTF-8 byte sequence for the next call */ -@@ -994,6 +1024,7 @@ tsetdirtattr(int attr) - void - tfulldirt(void) - { -+ tsync_end(); - tsetdirt(0, term.row-1); - } - -@@ -1895,6 +1926,12 @@ strhandle(void) - xsettitle(strescseq.args[0]); - return; - case 'P': /* DCS -- Device Control String */ -+ /* https://gitlab.com/gnachman/iterm2/-/wikis/synchronized-updates-spec */ -+ if (strstr(strescseq.buf, "=1s") == strescseq.buf) -+ tsync_begin(); /* BSU */ -+ else if (strstr(strescseq.buf, "=2s") == strescseq.buf) -+ tsync_end(); /* ESU */ -+ return; - case '_': /* APC -- Application Program Command */ - case '^': /* PM -- Privacy Message */ - return; -@@ -2436,6 +2473,9 @@ twrite(const char *buf, int buflen, int show_ctrl) - Rune u; - int n; - -+ int su0 = su; -+ twrite_aborted = 0; -+ - for (n = 0; n < buflen; n += charsize) { - if (IS_SET(MODE_UTF8)) { - /* process a complete utf8 char */ -@@ -2446,6 +2486,10 @@ twrite(const char *buf, int buflen, int show_ctrl) - u = buf[n] & 0xFF; - charsize = 1; - } -+ if (su0 && !su) { -+ twrite_aborted = 1; -+ break; // ESU - allow rendering before a new BSU -+ } - if (show_ctrl && ISCONTROL(u)) { - if (u & 0x80) { - u &= 0x7f; -diff --git a/st.info b/st.info -index 8201ad6..b32b446 100644 ---- a/st.info -+++ b/st.info -@@ -191,6 +191,7 @@ st-mono| simpleterm monocolor, - Ms=\E]52;%p1%s;%p2%s\007, - Se=\E[2 q, - Ss=\E[%p1%d q, -+ Sync=\EP=%p1%ds\E\\, - - st| simpleterm, - use=st-mono, -diff --git a/x.c b/x.c -index 210f184..27ff4e2 100644 ---- a/x.c -+++ b/x.c -@@ -1861,6 +1861,9 @@ resize(XEvent *e) - cresize(e->xconfigure.width, e->xconfigure.height); - } - -+int tinsync(uint); -+int ttyread_pending(); -+ - void - run(void) - { -@@ -1895,7 +1898,7 @@ run(void) - FD_SET(ttyfd, &rfd); - FD_SET(xfd, &rfd); - -- if (XPending(xw.dpy)) -+ if (XPending(xw.dpy) || ttyread_pending()) - timeout = 0; /* existing events might not set xfd */ - - seltv.tv_sec = timeout / 1E3; -@@ -1909,7 +1912,8 @@ run(void) - } - clock_gettime(CLOCK_MONOTONIC, &now); - -- if (FD_ISSET(ttyfd, &rfd)) -+ int ttyin = FD_ISSET(ttyfd, &rfd) || ttyread_pending(); -+ if (ttyin) - ttyread(); - - xev = 0; -@@ -1933,7 +1937,7 @@ run(void) - * maximum latency intervals during `cat huge.txt`, and perfect - * sync with periodic updates from animations/key-repeats/etc. - */ -- if (FD_ISSET(ttyfd, &rfd) || xev) { -+ if (ttyin || xev) { - if (!drawing) { - trigger = now; - drawing = 1; -@@ -1944,6 +1948,18 @@ run(void) - continue; /* we have time, try to find idle */ - } - -+ if (tinsync(su_timeout)) { -+ /* -+ * on synchronized-update draw-suspension: don't reset -+ * drawing so that we draw ASAP once we can (just after -+ * ESU). it won't be too soon because we already can -+ * draw now but we skip. we set timeout > 0 to draw on -+ * SU-timeout even without new content. -+ */ -+ timeout = minlatency; -+ continue; -+ } -+ - /* idle detected or maxlatency exhausted -> draw */ - timeout = -1; - if (blinktimeout && tattrset(ATTR_BLINK)) { - -base-commit: b27a383a3acc7decf00e6e889fca265430b5d329 --- -2.17.1 - @@ -231,33 +231,6 @@ static const uchar utfmask[UTF_SIZ + 1] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8}; static const Rune utfmin[UTF_SIZ + 1] = { 0, 0, 0x80, 0x800, 0x10000}; static const Rune utfmax[UTF_SIZ + 1] = {0x10FFFF, 0x7F, 0x7FF, 0xFFFF, 0x10FFFF}; -#include <time.h> -static int su = 0; -struct timespec sutv; - -static void -tsync_begin() -{ - clock_gettime(CLOCK_MONOTONIC, &sutv); - su = 1; -} - -static void -tsync_end() -{ - su = 0; -} - -int -tinsync(uint timeout) -{ - struct timespec now; - if (su && !clock_gettime(CLOCK_MONOTONIC, &now) - && TIMEDIFF(now, sutv) >= timeout) - su = 0; - return su; -} - ssize_t xwrite(int fd, const char *s, size_t len) { @@ -847,9 +820,6 @@ ttynew(const char *line, char *cmd, const char *out, char **args) return cmdfd; } -static int twrite_aborted = 0; -int ttyread_pending() { return twrite_aborted; } - size_t ttyread(void) { @@ -858,7 +828,7 @@ ttyread(void) int ret, written; /* append read bytes to unprocessed bytes */ - ret = twrite_aborted ? 1 : read(cmdfd, buf+buflen, LEN(buf)-buflen); + ret = read(cmdfd, buf+buflen, LEN(buf)-buflen); switch (ret) { case 0: @@ -866,7 +836,7 @@ ttyread(void) case -1: die("couldn't read from shell: %s\n", strerror(errno)); default: - buflen += twrite_aborted ? 0 : ret; + buflen += ret; written = twrite(buf, buflen, 0); buflen -= written; /* keep any incomplete UTF-8 byte sequence for the next call */ @@ -1026,7 +996,6 @@ tsetdirtattr(int attr) void tfulldirt(void) { - tsync_end(); tsetdirt(0, term.row-1); } @@ -1936,12 +1905,6 @@ strhandle(void) xsettitle(strescseq.args[0]); return; case 'P': /* DCS -- Device Control String */ - /* https://gitlab.com/gnachman/iterm2/-/wikis/synchronized-updates-spec */ - if (strstr(strescseq.buf, "=1s") == strescseq.buf) - tsync_begin(); /* BSU */ - else if (strstr(strescseq.buf, "=2s") == strescseq.buf) - tsync_end(); /* ESU */ - return; case '_': /* APC -- Application Program Command */ case '^': /* PM -- Privacy Message */ return; @@ -2483,9 +2446,6 @@ twrite(const char *buf, int buflen, int show_ctrl) Rune u; int n; - int su0 = su; - twrite_aborted = 0; - for (n = 0; n < buflen; n += charsize) { if (IS_SET(MODE_UTF8)) { /* process a complete utf8 char */ @@ -2496,10 +2456,6 @@ twrite(const char *buf, int buflen, int show_ctrl) u = buf[n] & 0xFF; charsize = 1; } - if (su0 && !su) { - twrite_aborted = 1; - break; // ESU - allow rendering before a new BSU - } if (show_ctrl && ISCONTROL(u)) { if (u & 0x80) { u &= 0x7f; @@ -191,7 +191,6 @@ st-mono| simpleterm monocolor, Ms=\E]52;%p1%s;%p2%s\007, Se=\E[2 q, Ss=\E[%p1%d q, - Sync=\EP=%p1%ds\E\\, st| simpleterm, use=st-mono, @@ -1,2454 +0,0 @@ -/* See LICENSE for license details. */ -#include <X11/XKBlib.h> -#include <X11/Xatom.h> -#include <X11/Xft/Xft.h> -#include <X11/Xlib.h> -#include <X11/Xresource.h> -#include <X11/cursorfont.h> -#include <X11/keysym.h> -#include <errno.h> -#include <libgen.h> -#include <limits.h> -#include <locale.h> -#include <math.h> -#include <signal.h> -#include <sys/select.h> -#include <time.h> -#include <unistd.h> - -char *argv0; -#include "arg.h" -#include "st.h" -#include "win.h" - -/* types used in config.h */ -typedef struct { - uint mod; - KeySym keysym; - void (*func)(const Arg *); - const Arg arg; -} Shortcut; - -typedef struct { - uint mod; - uint button; - void (*func)(const Arg *); - const Arg arg; - uint release; -} MouseShortcut; - -typedef struct { - KeySym k; - uint mask; - char *s; - /* three-valued logic variables: 0 indifferent, 1 on, -1 off */ - signed char appkey; /* application keypad */ - signed char appcursor; /* application cursor */ -} Key; - -/* Xresources preferences */ -enum resource_type { STRING = 0, INTEGER = 1, FLOAT = 2 }; - -typedef struct { - char *name; - enum resource_type type; - void *dst; -} ResourcePref; - -/* X modifiers */ -#define XK_ANY_MOD UINT_MAX -#define XK_NO_MOD 0 -#define XK_SWITCH_MOD (1 << 13 | 1 << 14) - -/* function definitions used in config.h */ -static void clipcopy(const Arg *); -static void clippaste(const Arg *); -static void numlock(const Arg *); -static void selpaste(const Arg *); -static void zoom(const Arg *); -static void zoomabs(const Arg *); -static void zoomreset(const Arg *); -static void ttysend(const Arg *); - -/* config.h for applying patches and the configuration. */ -#include "config.h" - -/* XEMBED messages */ -#define XEMBED_FOCUS_IN 4 -#define XEMBED_FOCUS_OUT 5 - -/* macros */ -#define IS_SET(flag) ((win.mode & (flag)) != 0) -#define TRUERED(x) (((x)&0xff0000) >> 8) -#define TRUEGREEN(x) (((x)&0xff00)) -#define TRUEBLUE(x) (((x)&0xff) << 8) - -typedef XftDraw *Draw; -typedef XftColor Color; -typedef XftGlyphFontSpec GlyphFontSpec; - -/* Purely graphic info */ -typedef struct { - int tw, th; /* tty width and height */ - int w, h; /* window width and height */ - int ch; /* char height */ - int cw; /* char width */ - int mode; /* window state/mode flags */ - int cursor; /* cursor style */ -} TermWindow; - -typedef struct { - Display *dpy; - Colormap cmap; - Window win; - Drawable buf; - GlyphFontSpec *specbuf; /* font spec buffer used for rendering */ - Atom xembed, wmdeletewin, netwmname, netwmiconname, netwmpid; - struct { - XIM xim; - XIC xic; - XPoint spot; - XVaNestedList spotlist; - } ime; - Draw draw; - Visual *vis; - XSetWindowAttributes attrs; - int scr; - int isfixed; /* is fixed geometry? */ - int l, t; /* left and top offset */ - int gm; /* geometry mask */ -} XWindow; - -typedef struct { - Atom xtarget; - char *primary, *clipboard; - struct timespec tclick1; - struct timespec tclick2; -} XSelection; - -/* Font structure */ -#define Font Font_ -typedef struct { - int height; - int width; - int ascent; - int descent; - int badslant; - int badweight; - short lbearing; - short rbearing; - XftFont *match; - FcFontSet *set; - FcPattern *pattern; -} Font; - -/* Drawing Context */ -typedef struct { - Color *col; - size_t collen; - Font font, bfont, ifont, ibfont; - GC gc; -} DC; - -static inline ushort sixd_to_16bit(int); -static int xmakeglyphfontspecs(XftGlyphFontSpec *, const Glyph *, int, int, - int); -static void xdrawglyphfontspecs(const XftGlyphFontSpec *, Glyph, int, int, int); -static void xdrawglyph(Glyph, int, int); -static void xclear(int, int, int, int); -static int xgeommasktogravity(int); -static int ximopen(Display *); -static void ximinstantiate(Display *, XPointer, XPointer); -static void ximdestroy(XIM, XPointer, XPointer); -static int xicdestroy(XIC, XPointer, XPointer); -static void xinit(int, int); -static void cresize(int, int); -static void xresize(int, int); -static void xhints(void); -static int xloadcolor(int, const char *, Color *); -static int xloadfont(Font *, FcPattern *); -static void xloadfonts(char *, double); -static int xloadsparefont(FcPattern *, int); -static void xloadsparefonts(void); -static void xunloadfont(Font *); -static void xunloadfonts(void); -static void xsetenv(void); -static void xseturgency(int); -static int evcol(XEvent *); -static int evrow(XEvent *); - -static void expose(XEvent *); -static void visibility(XEvent *); -static void unmap(XEvent *); -static void kpress(XEvent *); -static void cmessage(XEvent *); -static void resize(XEvent *); -static void focus(XEvent *); -static uint buttonmask(uint); -static int mouseaction(XEvent *, uint); -static void brelease(XEvent *); -static void bpress(XEvent *); -static void bmotion(XEvent *); -static void propnotify(XEvent *); -static void selnotify(XEvent *); -static void selclear_(XEvent *); -static void selrequest(XEvent *); -static void setsel(char *, Time); -static void mousesel(XEvent *, int); -static void mousereport(XEvent *); -static char *kmap(KeySym, uint); -static int match(uint, uint); - -static void run(void); -static void usage(void); - -static void (*handler[LASTEvent])(XEvent *) = { - [KeyPress] = kpress, - [ClientMessage] = cmessage, - [ConfigureNotify] = resize, - [VisibilityNotify] = visibility, - [UnmapNotify] = unmap, - [Expose] = expose, - [FocusIn] = focus, - [FocusOut] = focus, - [MotionNotify] = bmotion, - [ButtonPress] = bpress, - [ButtonRelease] = brelease, - /* - * Uncomment if you want the selection to disappear when you select - * something different in another window. - */ - /* [SelectionClear] = selclear_, */ - [SelectionNotify] = selnotify, - /* - * PropertyNotify is only turned on when there is some INCR transfer - * happening for the selection retrieval. - */ - [PropertyNotify] = propnotify, - [SelectionRequest] = selrequest, -}; - -/* Globals */ -static DC dc; -static XWindow xw; -static XSelection xsel; -static TermWindow win; - -/* Font Ring Cache */ -enum { FRC_NORMAL, FRC_ITALIC, FRC_BOLD, FRC_ITALICBOLD }; - -typedef struct { - XftFont *font; - int flags; - Rune unicodep; -} Fontcache; - -/* Fontcache is an array now. A new font will be appended to the array. */ -static Fontcache *frc = NULL; -static int frclen = 0; -static int frccap = 0; -static char *usedfont = NULL; -static double usedfontsize = 0; -static double defaultfontsize = 0; - -static char *opt_class = NULL; -static char **opt_cmd = NULL; -static char *opt_embed = NULL; -static char *opt_font = NULL; -static char *opt_io = NULL; -static char *opt_line = NULL; -static char *opt_name = NULL; -static char *opt_title = NULL; - -static int oldbutton = 3; /* button event on startup: 3 = release */ - -void clipcopy(const Arg *dummy) { - Atom clipboard; - - free(xsel.clipboard); - xsel.clipboard = NULL; - - if (xsel.primary != NULL) { - xsel.clipboard = xstrdup(xsel.primary); - clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0); - XSetSelectionOwner(xw.dpy, clipboard, xw.win, CurrentTime); - } -} - -void clippaste(const Arg *dummy) { - Atom clipboard; - - clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0); - XConvertSelection(xw.dpy, clipboard, xsel.xtarget, clipboard, xw.win, - CurrentTime); -} - -void selpaste(const Arg *dummy) { - XConvertSelection(xw.dpy, XA_PRIMARY, xsel.xtarget, XA_PRIMARY, xw.win, - CurrentTime); -} - -void numlock(const Arg *dummy) { win.mode ^= MODE_NUMLOCK; } - -void zoom(const Arg *arg) { - Arg larg; - - larg.f = usedfontsize + arg->f; - zoomabs(&larg); -} - -void zoomabs(const Arg *arg) { - xunloadfonts(); - xloadfonts(usedfont, arg->f); - xloadsparefonts(); - cresize(0, 0); - redraw(); - xhints(); -} - -void zoomreset(const Arg *arg) { - Arg larg; - - if (defaultfontsize > 0) { - larg.f = defaultfontsize; - zoomabs(&larg); - } -} - -void ttysend(const Arg *arg) { ttywrite(arg->s, strlen(arg->s), 1); } - -int evcol(XEvent *e) { - int x = e->xbutton.x - borderpx; - LIMIT(x, 0, win.tw - 1); - return x / win.cw; -} - -int evrow(XEvent *e) { - int y = e->xbutton.y - borderpx; - LIMIT(y, 0, win.th - 1); - return y / win.ch; -} - -void mousesel(XEvent *e, int done) { - int type, seltype = SEL_REGULAR; - uint state = e->xbutton.state & ~(Button1Mask | forcemousemod); - - for (type = 1; type < LEN(selmasks); ++type) { - if (match(selmasks[type], state)) { - seltype = type; - break; - } - } - selextend(evcol(e), evrow(e), seltype, done); - if (done) - setsel(getsel(), e->xbutton.time); -} - -void mousereport(XEvent *e) { - int len, x = evcol(e), y = evrow(e), button = e->xbutton.button, - state = e->xbutton.state; - char buf[40]; - static int ox, oy; - - /* from urxvt */ - if (e->xbutton.type == MotionNotify) { - if (x == ox && y == oy) - return; - if (!IS_SET(MODE_MOUSEMOTION) && !IS_SET(MODE_MOUSEMANY)) - return; - /* MOUSE_MOTION: no reporting if no button is pressed */ - if (IS_SET(MODE_MOUSEMOTION) && oldbutton == 3) - return; - - button = oldbutton + 32; - ox = x; - oy = y; - } else { - if (!IS_SET(MODE_MOUSESGR) && e->xbutton.type == ButtonRelease) { - button = 3; - } else { - button -= Button1; - if (button >= 7) - button += 128 - 7; - else if (button >= 3) - button += 64 - 3; - } - if (e->xbutton.type == ButtonPress) { - oldbutton = button; - ox = x; - oy = y; - } else if (e->xbutton.type == ButtonRelease) { - oldbutton = 3; - /* MODE_MOUSEX10: no button release reporting */ - if (IS_SET(MODE_MOUSEX10)) - return; - if (button == 64 || button == 65) - return; - } - } - - if (!IS_SET(MODE_MOUSEX10)) { - button += ((state & ShiftMask) ? 4 : 0) + ((state & Mod4Mask) ? 8 : 0) + - ((state & ControlMask) ? 16 : 0); - } - - if (IS_SET(MODE_MOUSESGR)) { - len = snprintf(buf, sizeof(buf), "\033[<%d;%d;%d%c", button, x + 1, y + 1, - e->xbutton.type == ButtonRelease ? 'm' : 'M'); - } else if (x < 223 && y < 223) { - len = snprintf(buf, sizeof(buf), "\033[M%c%c%c", 32 + button, 32 + x + 1, - 32 + y + 1); - } else { - return; - } - - ttywrite(buf, len, 0); -} - -uint buttonmask(uint button) { - return button == Button1 ? Button1Mask - : button == Button2 ? Button2Mask - : button == Button3 ? Button3Mask - : button == Button4 ? Button4Mask - : button == Button5 ? Button5Mask - : 0; -} - -int mouseaction(XEvent *e, uint release) { - MouseShortcut *ms; - - /* ignore Button<N>mask for Button<N> - it's set on release */ - uint state = e->xbutton.state & ~buttonmask(e->xbutton.button); - - for (ms = mshortcuts; ms < mshortcuts + LEN(mshortcuts); ms++) { - if (ms->release == release && ms->button == e->xbutton.button && - (match(ms->mod, state) || /* exact or forced */ - match(ms->mod, state & ~forcemousemod))) { - ms->func(&(ms->arg)); - return 1; - } - } - - return 0; -} - -void bpress(XEvent *e) { - struct timespec now; - int snap; - - if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forcemousemod)) { - mousereport(e); - return; - } - - if (mouseaction(e, 0)) - return; - - if (e->xbutton.button == Button1) { - /* - * If the user clicks below predefined timeouts specific - * snapping behaviour is exposed. - */ - clock_gettime(CLOCK_MONOTONIC, &now); - if (TIMEDIFF(now, xsel.tclick2) <= tripleclicktimeout) { - snap = SNAP_LINE; - } else if (TIMEDIFF(now, xsel.tclick1) <= doubleclicktimeout) { - snap = SNAP_WORD; - } else { - snap = 0; - } - xsel.tclick2 = xsel.tclick1; - xsel.tclick1 = now; - - selstart(evcol(e), evrow(e), snap); - } -} - -void propnotify(XEvent *e) { - XPropertyEvent *xpev; - Atom clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0); - - xpev = &e->xproperty; - if (xpev->state == PropertyNewValue && - (xpev->atom == XA_PRIMARY || xpev->atom == clipboard)) { - selnotify(e); - } -} - -void selnotify(XEvent *e) { - ulong nitems, ofs, rem; - int format; - uchar *data, *last, *repl; - Atom type, incratom, property = None; - - incratom = XInternAtom(xw.dpy, "INCR", 0); - - ofs = 0; - if (e->type == SelectionNotify) - property = e->xselection.property; - else if (e->type == PropertyNotify) - property = e->xproperty.atom; - - if (property == None) - return; - - do { - if (XGetWindowProperty(xw.dpy, xw.win, property, ofs, BUFSIZ / 4, False, - AnyPropertyType, &type, &format, &nitems, &rem, - &data)) { - fprintf(stderr, "Clipboard allocation failed\n"); - return; - } - - if (e->type == PropertyNotify && nitems == 0 && rem == 0) { - /* - * If there is some PropertyNotify with no data, then - * this is the signal of the selection owner that all - * data has been transferred. We won't need to receive - * PropertyNotify events anymore. - */ - MODBIT(xw.attrs.event_mask, 0, PropertyChangeMask); - XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask, &xw.attrs); - } - - if (type == incratom) { - /* - * Activate the PropertyNotify events so we receive - * when the selection owner does send us the next - * chunk of data. - */ - MODBIT(xw.attrs.event_mask, 1, PropertyChangeMask); - XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask, &xw.attrs); - - /* - * Deleting the property is the transfer start signal. - */ - XDeleteProperty(xw.dpy, xw.win, (int)property); - continue; - } - - /* - * As seen in getsel: - * Line endings are inconsistent in the terminal and GUI world - * copy and pasting. When receiving some selection data, - * replace all '\n' with '\r'. - * FIXME: Fix the computer world. - */ - repl = data; - last = data + nitems * format / 8; - while ((repl = memchr(repl, '\n', last - repl))) { - *repl++ = '\r'; - } - - if (IS_SET(MODE_BRCKTPASTE) && ofs == 0) - ttywrite("\033[200~", 6, 0); - ttywrite((char *)data, nitems * format / 8, 1); - if (IS_SET(MODE_BRCKTPASTE) && rem == 0) - ttywrite("\033[201~", 6, 0); - XFree(data); - /* number of 32-bit chunks returned */ - ofs += nitems * format / 32; - } while (rem > 0); - - /* - * Deleting the property again tells the selection owner to send the - * next data chunk in the property. - */ - XDeleteProperty(xw.dpy, xw.win, (int)property); -} - -void xclipcopy(void) { clipcopy(NULL); } - -void selclear_(XEvent *e) { selclear(); } - -void selrequest(XEvent *e) { - XSelectionRequestEvent *xsre; - XSelectionEvent xev; - Atom xa_targets, string, clipboard; - char *seltext; - - xsre = (XSelectionRequestEvent *)e; - xev.type = SelectionNotify; - xev.requestor = xsre->requestor; - xev.selection = xsre->selection; - xev.target = xsre->target; - xev.time = xsre->time; - if (xsre->property == None) - xsre->property = xsre->target; - - /* reject */ - xev.property = None; - - xa_targets = XInternAtom(xw.dpy, "TARGETS", 0); - if (xsre->target == xa_targets) { - /* respond with the supported type */ - string = xsel.xtarget; - XChangeProperty(xsre->display, xsre->requestor, xsre->property, XA_ATOM, 32, - PropModeReplace, (uchar *)&string, 1); - xev.property = xsre->property; - } else if (xsre->target == xsel.xtarget || xsre->target == XA_STRING) { - /* - * xith XA_STRING non ascii characters may be incorrect in the - * requestor. It is not our problem, use utf8. - */ - clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0); - if (xsre->selection == XA_PRIMARY) { - seltext = xsel.primary; - } else if (xsre->selection == clipboard) { - seltext = xsel.clipboard; - } else { - fprintf(stderr, "Unhandled clipboard selection 0x%lx\n", xsre->selection); - return; - } - if (seltext != NULL) { - XChangeProperty(xsre->display, xsre->requestor, xsre->property, - xsre->target, 8, PropModeReplace, (uchar *)seltext, - strlen(seltext)); - xev.property = xsre->property; - } - } - - /* all done, send a notification to the listener */ - if (!XSendEvent(xsre->display, xsre->requestor, 1, 0, (XEvent *)&xev)) - fprintf(stderr, "Error sending SelectionNotify event\n"); -} - -void setsel(char *str, Time t) { - if (!str) - return; - - free(xsel.primary); - xsel.primary = str; - - XSetSelectionOwner(xw.dpy, XA_PRIMARY, xw.win, t); - if (XGetSelectionOwner(xw.dpy, XA_PRIMARY) != xw.win) - selclear(); -} - -void xsetsel(char *str) { setsel(str, CurrentTime); } - -void brelease(XEvent *e) { - if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forcemousemod)) { - mousereport(e); - return; - } - - if (mouseaction(e, 1)) - return; - if (e->xbutton.button == Button1) - mousesel(e, 1); -} - -void bmotion(XEvent *e) { - if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forcemousemod)) { - mousereport(e); - return; - } - - mousesel(e, 0); -} - -void cresize(int width, int height) { - int col, row; - - if (width != 0) - win.w = width; - if (height != 0) - win.h = height; - - col = (win.w - 2 * borderpx) / win.cw; - row = (win.h - 2 * borderpx) / win.ch; - col = MAX(1, col); - row = MAX(1, row); - - tresize(col, row); - xresize(col, row); - ttyresize(win.tw, win.th); -} - -void xresize(int col, int row) { - win.tw = col * win.cw; - win.th = row * win.ch; - - XFreePixmap(xw.dpy, xw.buf); - xw.buf = - XCreatePixmap(xw.dpy, xw.win, win.w, win.h, DefaultDepth(xw.dpy, xw.scr)); - XftDrawChange(xw.draw, xw.buf); - xclear(0, 0, win.w, win.h); - - /* resize to new width */ - xw.specbuf = xrealloc(xw.specbuf, col * sizeof(GlyphFontSpec)); -} - -ushort sixd_to_16bit(int x) { return x == 0 ? 0 : 0x3737 + 0x2828 * x; } - -int xloadcolor(int i, const char *name, Color *ncolor) { - XRenderColor color = {.alpha = 0xffff}; - - if (!name) { - if (BETWEEN(i, 16, 255)) { /* 256 color */ - if (i < 6 * 6 * 6 + 16) { /* same colors as xterm */ - color.red = sixd_to_16bit(((i - 16) / 36) % 6); - color.green = sixd_to_16bit(((i - 16) / 6) % 6); - color.blue = sixd_to_16bit(((i - 16) / 1) % 6); - } else { /* greyscale */ - color.red = 0x0808 + 0x0a0a * (i - (6 * 6 * 6 + 16)); - color.green = color.blue = color.red; - } - return XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &color, ncolor); - } else - name = colorname[i]; - } - - return XftColorAllocName(xw.dpy, xw.vis, xw.cmap, name, ncolor); -} - -void xloadcols(void) { - int i; - static int loaded; - Color *cp; - - if (loaded) { - for (cp = dc.col; cp < &dc.col[dc.collen]; ++cp) - XftColorFree(xw.dpy, xw.vis, xw.cmap, cp); - } else { - dc.collen = MAX(LEN(colorname), 256); - dc.col = xmalloc(dc.collen * sizeof(Color)); - } - - for (i = 0; i < dc.collen; i++) - if (!xloadcolor(i, NULL, &dc.col[i])) { - if (colorname[i]) - die("could not allocate color '%s'\n", colorname[i]); - else - die("could not allocate color %d\n", i); - } - loaded = 1; -} - -void selpaste(const Arg *dummy) { - XConvertSelection(xw.dpy, XA_PRIMARY, xsel.xtarget, XA_PRIMARY, xw.win, - CurrentTime); -} - -void numlock(const Arg *dummy) { win.mode ^= MODE_NUMLOCK; } - -void zoom(const Arg *arg) { - Arg larg; - - larg.f = usedfontsize + arg->f; - zoomabs(&larg); -} - -void zoomabs(const Arg *arg) { - xunloadfonts(); - xloadfonts(usedfont, arg->f); - cresize(0, 0); - redraw(); - xhints(); -} - -void zoomreset(const Arg *arg) { - Arg larg; - - if (defaultfontsize > 0) { - larg.f = defaultfontsize; - zoomabs(&larg); - } -} - -void ttysend(const Arg *arg) { ttywrite(arg->s, strlen(arg->s), 1); } - -int evcol(XEvent *e) { - int x = e->xbutton.x - borderpx; - LIMIT(x, 0, win.tw - 1); - return x / win.cw; -} - -int evrow(XEvent *e) { - int y = e->xbutton.y - borderpx; - LIMIT(y, 0, win.th - 1); - return y / win.ch; -} - -void mousesel(XEvent *e, int done) { - int type, seltype = SEL_REGULAR; - uint state = e->xbutton.state & ~(Button1Mask | forcemousemod); - - for (type = 1; type < LEN(selmasks); ++type) { - if (match(selmasks[type], state)) { - seltype = type; - break; - } - } - selextend(evcol(e), evrow(e), seltype, done); - if (done) - setsel(getsel(), e->xbutton.time); -} - -void mousereport(XEvent *e) { - int len, x = evcol(e), y = evrow(e), button = e->xbutton.button, - state = e->xbutton.state; - char buf[40]; - static int ox, oy; - - /* from urxvt */ - if (e->xbutton.type == MotionNotify) { - if (x == ox && y == oy) - return; - if (!IS_SET(MODE_MOUSEMOTION) && !IS_SET(MODE_MOUSEMANY)) - return; - /* MOUSE_MOTION: no reporting if no button is pressed */ - if (IS_SET(MODE_MOUSEMOTION) && oldbutton == 3) - return; - - button = oldbutton + 32; - ox = x; - oy = y; - } else { - if (!IS_SET(MODE_MOUSESGR) && e->xbutton.type == ButtonRelease) { - button = 3; - } else { - button -= Button1; - if (button >= 3) - button += 64 - 3; - } - if (e->xbutton.type == ButtonPress) { - oldbutton = button; - ox = x; - oy = y; - } else if (e->xbutton.type == ButtonRelease) { - oldbutton = 3; - /* MODE_MOUSEX10: no button release reporting */ - if (IS_SET(MODE_MOUSEX10)) - return; - if (button == 64 || button == 65) - return; - } - } - - if (!IS_SET(MODE_MOUSEX10)) { - button += ((state & ShiftMask) ? 4 : 0) + ((state & Mod4Mask) ? 8 : 0) + - ((state & ControlMask) ? 16 : 0); - } - - if (IS_SET(MODE_MOUSESGR)) { - len = snprintf(buf, sizeof(buf), "\033[<%d;%d;%d%c", button, x + 1, y + 1, - e->xbutton.type == ButtonRelease ? 'm' : 'M'); - } else if (x < 223 && y < 223) { - len = snprintf(buf, sizeof(buf), "\033[M%c%c%c", 32 + button, 32 + x + 1, - 32 + y + 1); - } else { - return; - } - - ttywrite(buf, len, 0); -} - -uint buttonmask(uint button) { - return button == Button1 ? Button1Mask - : button == Button2 ? Button2Mask - : button == Button3 ? Button3Mask - : button == Button4 ? Button4Mask - : button == Button5 ? Button5Mask - : 0; -} - -int mouseaction(XEvent *e, uint release) { - MouseShortcut *ms; - - /* ignore Button<N>mask for Button<N> - it's set on release */ - uint state = e->xbutton.state & ~buttonmask(e->xbutton.button); - - for (ms = mshortcuts; ms < mshortcuts + LEN(mshortcuts); ms++) { - if (ms->release == release && ms->button == e->xbutton.button && - (match(ms->mod, state) || /* exact or forced */ - match(ms->mod, state & ~forcemousemod))) { - ms->func(&(ms->arg)); - return 1; - } - } - - return 0; -} - -void bpress(XEvent *e) { - struct timespec now; - int snap; - - if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forcemousemod)) { - mousereport(e); - return; - } - - if (mouseaction(e, 0)) - return; - - if (e->xbutton.button == Button1) { - /* - * If the user clicks below predefined timeouts specific - * snapping behaviour is exposed. - */ - clock_gettime(CLOCK_MONOTONIC, &now); - if (TIMEDIFF(now, xsel.tclick2) <= tripleclicktimeout) { - snap = SNAP_LINE; - } else if (TIMEDIFF(now, xsel.tclick1) <= doubleclicktimeout) { - snap = SNAP_WORD; - } else { - snap = 0; - } - xsel.tclick2 = xsel.tclick1; - xsel.tclick1 = now; - - selstart(evcol(e), evrow(e), snap); - } -} - -void propnotify(XEvent *e) { - XPropertyEvent *xpev; - Atom clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0); - - xpev = &e->xproperty; - if (xpev->state == PropertyNewValue && - (xpev->atom == XA_PRIMARY || xpev->atom == clipboard)) { - selnotify(e); - } -} - -void selnotify(XEvent *e) { - ulong nitems, ofs, rem; - int format; - uchar *data, *last, *repl; - Atom type, incratom, property = None; - - incratom = XInternAtom(xw.dpy, "INCR", 0); - - ofs = 0; - if (e->type == SelectionNotify) - property = e->xselection.property; - else if (e->type == PropertyNotify) - property = e->xproperty.atom; - - if (property == None) - return; - - do { - if (XGetWindowProperty(xw.dpy, xw.win, property, ofs, BUFSIZ / 4, False, - AnyPropertyType, &type, &format, &nitems, &rem, - &data)) { - fprintf(stderr, "Clipboard allocation failed\n"); - return; - } - - if (e->type == PropertyNotify && nitems == 0 && rem == 0) { - /* - * If there is some PropertyNotify with no data, then - * this is the signal of the selection owner that all - * data has been transferred. We won't need to receive - * PropertyNotify events anymore. - */ - MODBIT(xw.attrs.event_mask, 0, PropertyChangeMask); - XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask, &xw.attrs); - } - - if (type == incratom) { - /* - * Activate the PropertyNotify events so we receive - * when the selection owner does send us the next - * chunk of data. - */ - MODBIT(xw.attrs.event_mask, 1, PropertyChangeMask); - XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask, &xw.attrs); - - /* - * Deleting the property is the transfer start signal. - */ - XDeleteProperty(xw.dpy, xw.win, (int)property); - continue; - } - - /* - * As seen in getsel: - * Line endings are inconsistent in the terminal and GUI world - * copy and pasting. When receiving some selection data, - * replace all '\n' with '\r'. - * FIXME: Fix the computer world. - */ - repl = data; - last = data + nitems * format / 8; - while ((repl = memchr(repl, '\n', last - repl))) { - *repl++ = '\r'; - } - - if (IS_SET(MODE_BRCKTPASTE) && ofs == 0) - ttywrite("\033[200~", 6, 0); - ttywrite((char *)data, nitems * format / 8, 1); - if (IS_SET(MODE_BRCKTPASTE) && rem == 0) - ttywrite("\033[201~", 6, 0); - XFree(data); - /* number of 32-bit chunks returned */ - ofs += nitems * format / 32; - } while (rem > 0); - - /* - * Deleting the property again tells the selection owner to send the - * next data chunk in the property. - */ - XDeleteProperty(xw.dpy, xw.win, (int)property); -} - -void xclipcopy(void) { clipcopy(NULL); } - -void selclear_(XEvent *e) { selclear(); } - -void selrequest(XEvent *e) { - XSelectionRequestEvent *xsre; - XSelectionEvent xev; - Atom xa_targets, string, clipboard; - char *seltext; - - xsre = (XSelectionRequestEvent *)e; - xev.type = SelectionNotify; - xev.requestor = xsre->requestor; - xev.selection = xsre->selection; - xev.target = xsre->target; - xev.time = xsre->time; - if (xsre->property == None) - xsre->property = xsre->target; - - /* reject */ - xev.property = None; - - xa_targets = XInternAtom(xw.dpy, "TARGETS", 0); - if (xsre->target == xa_targets) { - /* respond with the supported type */ - string = xsel.xtarget; - XChangeProperty(xsre->display, xsre->requestor, xsre->property, XA_ATOM, 32, - PropModeReplace, (uchar *)&string, 1); - xev.property = xsre->property; - } else if (xsre->target == xsel.xtarget || xsre->target == XA_STRING) { - /* - * xith XA_STRING non ascii characters may be incorrect in the - * requestor. It is not our problem, use utf8. - */ - clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0); - if (xsre->selection == XA_PRIMARY) { - seltext = xsel.primary; - } else if (xsre->selection == clipboard) { - seltext = xsel.clipboard; - } else { - fprintf(stderr, "Unhandled clipboard selection 0x%lx\n", xsre->selection); - return; - } - if (seltext != NULL) { - XChangeProperty(xsre->display, xsre->requestor, xsre->property, - xsre->target, 8, PropModeReplace, (uchar *)seltext, - strlen(seltext)); - xev.property = xsre->property; - } - } - - /* all done, send a notification to the listener */ - if (!XSendEvent(xsre->display, xsre->requestor, 1, 0, (XEvent *)&xev)) - fprintf(stderr, "Error sending SelectionNotify event\n"); -} - -void setsel(char *str, Time t) { - if (!str) - return; - - free(xsel.primary); - xsel.primary = str; - - XSetSelectionOwner(xw.dpy, XA_PRIMARY, xw.win, t); - if (XGetSelectionOwner(xw.dpy, XA_PRIMARY) != xw.win) - selclear(); - clipcopy(NULL); -} - -void xsetsel(char *str) { setsel(str, CurrentTime); } - -void brelease(XEvent *e) { - if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forcemousemod)) { - mousereport(e); - return; - } - - if (mouseaction(e, 1)) - return; - if (e->xbutton.button == Button1) - mousesel(e, 1); -} - -void bmotion(XEvent *e) { - if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forcemousemod)) { - mousereport(e); - return; - } - - mousesel(e, 0); -} - -void cresize(int width, int height) { - int col, row; - - if (width != 0) - win.w = width; - if (height != 0) - win.h = height; - - col = (win.w - 2 * borderpx) / win.cw; - row = (win.h - 2 * borderpx) / win.ch; - col = MAX(1, col); - row = MAX(1, row); - - tresize(col, row); - xresize(col, row); - ttyresize(win.tw, win.th); -} - -void xresize(int col, int row) { - win.tw = col * win.cw; - win.th = row * win.ch; - - XFreePixmap(xw.dpy, xw.buf); - xw.buf = - XCreatePixmap(xw.dpy, xw.win, win.w, win.h, DefaultDepth(xw.dpy, xw.scr)); - XftDrawChange(xw.draw, xw.buf); - xclear(0, 0, win.w, win.h); - - /* resize to new width */ - xw.specbuf = xrealloc(xw.specbuf, col * sizeof(GlyphFontSpec)); -} - -ushort sixd_to_16bit(int x) { return x == 0 ? 0 : 0x3737 + 0x2828 * x; } - -int xloadcolor(int i, const char *name, Color *ncolor) { - XRenderColor color = {.alpha = 0xffff}; - - if (loaded) { - for (cp = dc.col; cp < &dc.col[dc.collen]; ++cp) - XftColorFree(xw.dpy, xw.vis, xw.cmap, cp); - } else { - dc.collen = MAX(LEN(colorname), 256); - dc.col = xmalloc(dc.collen * sizeof(Color)); - } - - for (i = 0; i < dc.collen; i++) - if (!xloadcolor(i, NULL, &dc.col[i])) { - if (colorname[i]) - die("could not allocate color '%s'\n", colorname[i]); - else - die("could not allocate color %d\n", i); - } - loaded = 1; -} - -int xsetcolorname(int x, const char *name) { - Color ncolor; - - if (!BETWEEN(x, 0, dc.collen)) - return 1; - - if (!xloadcolor(x, name, &ncolor)) - return 1; - - XftColorFree(xw.dpy, xw.vis, xw.cmap, &dc.col[x]); - dc.col[x] = ncolor; - - return 0; -} - -/* - * 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_name ? opt_name : "st", opt_class ? opt_class : "St"}; - XWMHints wm = {.flags = InputHint, .input = 1}; - XSizeHints *sizeh; - - sizeh = XAllocSizeHints(); - - sizeh->flags = PSize | PResizeInc | PBaseSize | PMinSize; - sizeh->height = win.h; - sizeh->width = win.w; - sizeh->height_inc = win.ch; - sizeh->width_inc = win.cw; - sizeh->base_height = 2 * borderpx; - sizeh->base_width = 2 * borderpx; - sizeh->min_height = win.ch + 2 * borderpx; - sizeh->min_width = win.cw + 2 * borderpx; - if (xw.isfixed) { - sizeh->flags |= PMaxSize; - sizeh->min_width = sizeh->max_width = win.w; - sizeh->min_height = sizeh->max_height = win.h; - } - if (xw.gm & (XValue | YValue)) { - sizeh->flags |= USPosition | PWinGravity; - sizeh->x = xw.l; - sizeh->y = xw.t; - sizeh->win_gravity = xgeommasktogravity(xw.gm); - } - - XSetWMProperties(xw.dpy, xw.win, NULL, NULL, NULL, 0, sizeh, &wm, &class); - XFree(sizeh); -} - -int xgeommasktogravity(int mask) { - switch (mask & (XNegative | YNegative)) { - case 0: - return NorthWestGravity; - case XNegative: - return NorthEastGravity; - case YNegative: - return SouthWestGravity; - } - - return SouthEastGravity; -} - -int xloadfont(Font *f, FcPattern *pattern) { - FcPattern *configured; - FcPattern *match; - FcResult result; - XGlyphInfo extents; - int wantattr, haveattr; - - /* - * Manually configure instead of calling XftMatchFont - * so that we can use the configured pattern for - * "missing glyph" lookups. - */ - configured = FcPatternDuplicate(pattern); - if (!configured) - return 1; - - FcConfigSubstitute(NULL, configured, FcMatchPattern); - XftDefaultSubstitute(xw.dpy, xw.scr, configured); - - match = FcFontMatch(NULL, configured, &result); - if (!match) { - FcPatternDestroy(configured); - return 1; - } - - if (!(f->match = XftFontOpenPattern(xw.dpy, match))) { - FcPatternDestroy(configured); - FcPatternDestroy(match); - return 1; - } - - if ((XftPatternGetInteger(pattern, "slant", 0, &wantattr) == - XftResultMatch)) { - /* - * Check if xft was unable to find a font with the appropriate - * slant but gave us one anyway. Try to mitigate. - */ - if ((XftPatternGetInteger(f->match->pattern, "slant", 0, &haveattr) != - XftResultMatch) || - haveattr < wantattr) { - f->badslant = 1; - fputs("font slant does not match\n", stderr); - } - } - - if ((XftPatternGetInteger(pattern, "weight", 0, &wantattr) == - XftResultMatch)) { - if ((XftPatternGetInteger(f->match->pattern, "weight", 0, &haveattr) != - XftResultMatch) || - haveattr != wantattr) { - f->badweight = 1; - fputs("font weight does not match\n", stderr); - } - } - - XftTextExtentsUtf8(xw.dpy, f->match, (const FcChar8 *)ascii_printable, - strlen(ascii_printable), &extents); - - f->set = NULL; - f->pattern = configured; - - f->ascent = f->match->ascent; - f->descent = f->match->descent; - f->lbearing = 0; - f->rbearing = f->match->max_advance_width; - - f->height = f->ascent + f->descent; - f->width = DIVCEIL(extents.xOff, strlen(ascii_printable)); - - return 0; -} - -void xloadfonts(const char *fontstr, double fontsize) { - FcPattern *pattern; - double fontval; - - if (fontstr[0] == '-') - pattern = XftXlfdParse(fontstr, False, False); - else - pattern = FcNameParse((const FcChar8 *)fontstr); - - if (!pattern) - die("can't open font %s\n", fontstr); - - if (fontsize > 1) { - FcPatternDel(pattern, FC_PIXEL_SIZE); - FcPatternDel(pattern, FC_SIZE); - FcPatternAddDouble(pattern, FC_PIXEL_SIZE, (double)fontsize); - usedfontsize = fontsize; - } else { - if (FcPatternGetDouble(pattern, FC_PIXEL_SIZE, 0, &fontval) == - FcResultMatch) { - usedfontsize = fontval; - } else if (FcPatternGetDouble(pattern, FC_SIZE, 0, &fontval) == - FcResultMatch) { - usedfontsize = -1; - } else { - /* - * Default font size is 12, if none given. This is to - * have a known usedfontsize value. - */ - FcPatternAddDouble(pattern, FC_PIXEL_SIZE, 12); - usedfontsize = 12; - } - defaultfontsize = usedfontsize; - } - - if (xloadfont(&dc.font, pattern)) - die("can't open font %s\n", fontstr); - - if (usedfontsize < 0) { - FcPatternGetDouble(dc.font.match->pattern, FC_PIXEL_SIZE, 0, &fontval); - usedfontsize = fontval; - if (fontsize == 0) - defaultfontsize = fontval; - } - - /* Setting character width and height. */ - win.cw = ceilf(dc.font.width * cwscale); - win.ch = ceilf(dc.font.height * chscale); - - FcPatternDel(pattern, FC_SLANT); - FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC); - if (xloadfont(&dc.ifont, pattern)) - die("can't open font %s\n", fontstr); - - FcPatternDel(pattern, FC_WEIGHT); - FcPatternAddInteger(pattern, FC_WEIGHT, FC_WEIGHT_BOLD); - if (xloadfont(&dc.ibfont, pattern)) - die("can't open font %s\n", fontstr); - - FcPatternDel(pattern, FC_SLANT); - FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ROMAN); - if (xloadfont(&dc.bfont, pattern)) - die("can't open font %s\n", fontstr); - - FcPatternDestroy(pattern); -} - -int xloadsparefont(FcPattern *pattern, int flags) { - FcPattern *match; - FcResult result; - - match = FcFontMatch(NULL, pattern, &result); - if (!match) { - return 1; - } - - if (!(frc[frclen].font = XftFontOpenPattern(xw.dpy, match))) { - FcPatternDestroy(match); - return 1; - } - - frc[frclen].flags = flags; - /* Believe U+0000 glyph will present in each default font */ - frc[frclen].unicodep = 0; - frclen++; - - return 0; -} - -void xloadsparefonts(void) { - FcPattern *pattern; - double sizeshift, fontval; - int fc; - char **fp; - - if (frclen != 0) - die("can't embed spare fonts. cache isn't empty"); - - /* Calculate count of spare fonts */ - fc = sizeof(font2) / sizeof(*font2); - if (fc == 0) - return; - - /* Allocate memory for cache entries. */ - if (frccap < 4 * fc) { - frccap += 4 * fc - frccap; - frc = xrealloc(frc, frccap * sizeof(Fontcache)); - } - - for (fp = font2; fp - font2 < fc; ++fp) { - - if (**fp == '-') - pattern = XftXlfdParse(*fp, False, False); - else - pattern = FcNameParse((FcChar8 *)*fp); - - if (!pattern) - die("can't open spare font %s\n", *fp); - - if (defaultfontsize > 0) { - sizeshift = usedfontsize - defaultfontsize; - if (sizeshift != 0 && FcPatternGetDouble(pattern, FC_PIXEL_SIZE, 0, - &fontval) == FcResultMatch) { - fontval += sizeshift; - FcPatternDel(pattern, FC_PIXEL_SIZE); - FcPatternDel(pattern, FC_SIZE); - FcPatternAddDouble(pattern, FC_PIXEL_SIZE, fontval); - } - } - - FcPatternAddBool(pattern, FC_SCALABLE, 1); - - FcConfigSubstitute(NULL, pattern, FcMatchPattern); - XftDefaultSubstitute(xw.dpy, xw.scr, pattern); - - if (xloadsparefont(pattern, FRC_NORMAL)) - die("can't open spare font %s\n", *fp); - - FcPatternDel(pattern, FC_SLANT); - FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC); - if (xloadsparefont(pattern, FRC_ITALIC)) - die("can't open spare font %s\n", *fp); - - FcPatternDel(pattern, FC_WEIGHT); - FcPatternAddInteger(pattern, FC_WEIGHT, FC_WEIGHT_BOLD); - if (xloadsparefont(pattern, FRC_ITALICBOLD)) - die("can't open spare font %s\n", *fp); - - FcPatternDel(pattern, FC_SLANT); - FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ROMAN); - if (xloadsparefont(pattern, FRC_BOLD)) - die("can't open spare font %s\n", *fp); - - FcPatternDestroy(pattern); - } -} - -void xunloadfont(Font *f) { - XftFontClose(xw.dpy, f->match); - FcPatternDestroy(f->pattern); - if (f->set) - FcFontSetDestroy(f->set); -} - -void xunloadfonts(void) { - /* Free the loaded fonts in the font cache. */ - while (frclen > 0) - XftFontClose(xw.dpy, frc[--frclen].font); - - xunloadfont(&dc.font); - xunloadfont(&dc.bfont); - xunloadfont(&dc.ifont); - xunloadfont(&dc.ibfont); -} - -int ximopen(Display *dpy) { - XIMCallback imdestroy = {.client_data = NULL, .callback = ximdestroy}; - XICCallback icdestroy = {.client_data = NULL, .callback = xicdestroy}; - - xw.ime.xim = XOpenIM(xw.dpy, NULL, NULL, NULL); - if (xw.ime.xim == NULL) - return 0; - - if (XSetIMValues(xw.ime.xim, XNDestroyCallback, &imdestroy, NULL)) - fprintf(stderr, "XSetIMValues: " - "Could not set XNDestroyCallback.\n"); - - xw.ime.spotlist = XVaCreateNestedList(0, XNSpotLocation, &xw.ime.spot, NULL); - - if (xw.ime.xic == NULL) { - xw.ime.xic = XCreateIC(xw.ime.xim, XNInputStyle, - XIMPreeditNothing | XIMStatusNothing, XNClientWindow, - xw.win, XNDestroyCallback, &icdestroy, NULL); - } - if (xw.ime.xic == NULL) - fprintf(stderr, "XCreateIC: Could not create input context.\n"); - - return 1; -} - -void ximinstantiate(Display *dpy, XPointer client, XPointer call) { - if (ximopen(dpy)) - XUnregisterIMInstantiateCallback(xw.dpy, NULL, NULL, NULL, ximinstantiate, - NULL); -} - -void ximdestroy(XIM xim, XPointer client, XPointer call) { - xw.ime.xim = NULL; - XRegisterIMInstantiateCallback(xw.dpy, NULL, NULL, NULL, ximinstantiate, - NULL); - XFree(xw.ime.spotlist); -} - -int xicdestroy(XIC xim, XPointer client, XPointer call) { - xw.ime.xic = NULL; - return 1; -} - -void xinit(int cols, int rows) { - XGCValues gcvalues; - Cursor cursor; - Window parent; - pid_t thispid = getpid(); - XColor xmousefg, xmousebg; - - 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); - - /* spare fonts */ - xloadsparefonts(); - - /* colors */ - xw.cmap = XDefaultColormap(xw.dpy, xw.scr); - xloadcols(); - - /* adjust fixed window geometry */ - win.w = 2 * borderpx + cols * win.cw; - win.h = 2 * borderpx + rows * win.ch; - if (xw.gm & XNegative) - xw.l += DisplayWidth(xw.dpy, xw.scr) - win.w - 2; - if (xw.gm & YNegative) - xw.t += DisplayHeight(xw.dpy, xw.scr) - win.h - 2; - - /* Events */ - xw.attrs.background_pixel = dc.col[defaultbg].pixel; - xw.attrs.border_pixel = dc.col[defaultbg].pixel; - xw.attrs.bit_gravity = NorthWestGravity; - xw.attrs.event_mask = FocusChangeMask | KeyPressMask | KeyReleaseMask | - ExposureMask | VisibilityChangeMask | - StructureNotifyMask | ButtonMotionMask | - ButtonPressMask | ButtonReleaseMask; - xw.attrs.colormap = xw.cmap; - - if (!(opt_embed && (parent = strtol(opt_embed, NULL, 0)))) - parent = XRootWindow(xw.dpy, xw.scr); - xw.win = XCreateWindow(xw.dpy, parent, xw.l, xw.t, win.w, win.h, 0, - XDefaultDepth(xw.dpy, xw.scr), InputOutput, xw.vis, - CWBackPixel | CWBorderPixel | CWBitGravity | - CWEventMask | CWColormap, - &xw.attrs); - - memset(&gcvalues, 0, sizeof(gcvalues)); - gcvalues.graphics_exposures = False; - dc.gc = XCreateGC(xw.dpy, parent, GCGraphicsExposures, &gcvalues); - xw.buf = - XCreatePixmap(xw.dpy, xw.win, win.w, win.h, DefaultDepth(xw.dpy, xw.scr)); - XSetForeground(xw.dpy, dc.gc, dc.col[defaultbg].pixel); - XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, win.w, win.h); - - /* font spec buffer */ - xw.specbuf = xmalloc(cols * sizeof(GlyphFontSpec)); - - /* Xft rendering context */ - xw.draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap); - - /* input methods */ - if (!ximopen(xw.dpy)) { - XRegisterIMInstantiateCallback(xw.dpy, NULL, NULL, NULL, ximinstantiate, - NULL); - } - - /* white cursor, black outline */ - cursor = XCreateFontCursor(xw.dpy, mouseshape); - XDefineCursor(xw.dpy, xw.win, cursor); - - if (XParseColor(xw.dpy, xw.cmap, colorname[mousefg], &xmousefg) == 0) { - xmousefg.red = 0xffff; - xmousefg.green = 0xffff; - xmousefg.blue = 0xffff; - } - - if (XParseColor(xw.dpy, xw.cmap, colorname[mousebg], &xmousebg) == 0) { - xmousebg.red = 0x0000; - xmousebg.green = 0x0000; - xmousebg.blue = 0x0000; - } - - XRecolorCursor(xw.dpy, cursor, &xmousefg, &xmousebg); - - xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False); - xw.wmdeletewin = XInternAtom(xw.dpy, "WM_DELETE_WINDOW", False); - xw.netwmname = XInternAtom(xw.dpy, "_NET_WM_NAME", False); - xw.netwmiconname = XInternAtom(xw.dpy, "_NET_WM_ICON_NAME", False); - XSetWMProtocols(xw.dpy, xw.win, &xw.wmdeletewin, 1); - - xw.netwmpid = XInternAtom(xw.dpy, "_NET_WM_PID", False); - XChangeProperty(xw.dpy, xw.win, xw.netwmpid, XA_CARDINAL, 32, PropModeReplace, - (uchar *)&thispid, 1); - - win.mode = MODE_NUMLOCK; - resettitle(); - xhints(); - XMapWindow(xw.dpy, xw.win); - XSync(xw.dpy, False); - - clock_gettime(CLOCK_MONOTONIC, &xsel.tclick1); - clock_gettime(CLOCK_MONOTONIC, &xsel.tclick2); - xsel.primary = NULL; - xsel.clipboard = NULL; - xsel.xtarget = XInternAtom(xw.dpy, "UTF8_STRING", 0); - if (xsel.xtarget == None) - xsel.xtarget = XA_STRING; -} - -int xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, - int x, int y) { - float winx = borderpx + x * win.cw, winy = borderpx + y * win.ch, xp, yp; - ushort mode, prevmode = USHRT_MAX; - Font *font = &dc.font; - int frcflags = FRC_NORMAL; - float runewidth = win.cw; - Rune rune; - FT_UInt glyphidx; - FcResult fcres; - FcPattern *fcpattern, *fontpattern; - FcFontSet *fcsets[] = {NULL}; - FcCharSet *fccharset; - int i, f, numspecs = 0; - - for (i = 0, xp = winx, yp = winy + font->ascent; i < len; ++i) { - /* Fetch rune and mode for current glyph. */ - rune = glyphs[i].u; - mode = glyphs[i].mode; - - /* Skip dummy wide-character spacing. */ - if (mode == ATTR_WDUMMY) - continue; - - /* Determine font for glyph if different from previous glyph. */ - if (prevmode != mode) { - prevmode = mode; - font = &dc.font; - frcflags = FRC_NORMAL; - runewidth = win.cw * ((mode & ATTR_WIDE) ? 2.0f : 1.0f); - if ((mode & ATTR_ITALIC) && (mode & ATTR_BOLD)) { - font = &dc.ibfont; - frcflags = FRC_ITALICBOLD; - } else if (mode & ATTR_ITALIC) { - font = &dc.ifont; - frcflags = FRC_ITALIC; - } else if (mode & ATTR_BOLD) { - font = &dc.bfont; - frcflags = FRC_BOLD; - } - yp = winy + font->ascent; - } - - /* Lookup character index with default font. */ - glyphidx = XftCharIndex(xw.dpy, font->match, rune); - if (glyphidx) { - specs[numspecs].font = font->match; - specs[numspecs].glyph = glyphidx; - specs[numspecs].x = (short)xp; - specs[numspecs].y = (short)yp; - xp += runewidth; - numspecs++; - continue; - } - - /* Fallback on font cache, search the font cache for match. */ - for (f = 0; f < frclen; f++) { - glyphidx = XftCharIndex(xw.dpy, frc[f].font, rune); - /* Everything correct. */ - if (glyphidx && frc[f].flags == frcflags) - break; - /* We got a default font for a not found glyph. */ - if (!glyphidx && frc[f].flags == frcflags && frc[f].unicodep == rune) { - break; - } - } - - /* Nothing was found. Use fontconfig to find matching font. */ - if (f >= frclen) { - if (!font->set) - font->set = FcFontSort(0, font->pattern, 1, 0, &fcres); - fcsets[0] = font->set; - - /* - * Nothing was found in the cache. Now use - * some dozen of Fontconfig calls to get the - * font for one single character. - * - * Xft and fontconfig are design failures. - */ - fcpattern = FcPatternDuplicate(font->pattern); - fccharset = FcCharSetCreate(); - - FcCharSetAddChar(fccharset, rune); - FcPatternAddCharSet(fcpattern, FC_CHARSET, fccharset); - FcPatternAddBool(fcpattern, FC_SCALABLE, 1); - - FcConfigSubstitute(0, fcpattern, FcMatchPattern); - FcDefaultSubstitute(fcpattern); - - fontpattern = FcFontSetMatch(0, fcsets, 1, fcpattern, &fcres); - - /* Allocate memory for the new cache entry. */ - if (frclen >= frccap) { - frccap += 16; - frc = xrealloc(frc, frccap * sizeof(Fontcache)); - } - - frc[frclen].font = XftFontOpenPattern(xw.dpy, fontpattern); - if (!frc[frclen].font) - die("XftFontOpenPattern failed seeking fallback font: %s\n", - strerror(errno)); - frc[frclen].flags = frcflags; - frc[frclen].unicodep = rune; - - glyphidx = XftCharIndex(xw.dpy, frc[frclen].font, rune); - - f = frclen; - frclen++; - - FcPatternDestroy(fcpattern); - FcCharSetDestroy(fccharset); - } - - specs[numspecs].font = frc[f].font; - specs[numspecs].glyph = glyphidx; - specs[numspecs].x = (short)xp; - specs[numspecs].y = (short)yp; - xp += runewidth; - numspecs++; - } - - return numspecs; -} - -void xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, - int x, int y) { - int charlen = len * ((base.mode & ATTR_WIDE) ? 2 : 1); - int winx = borderpx + x * win.cw, winy = borderpx + y * win.ch, - width = charlen * win.cw; - Color *fg, *bg, *temp, revfg, revbg, truefg, truebg; - XRenderColor colfg, colbg; - XRectangle r; - - /* Fallback on color display for attributes not supported by the font */ - if (base.mode & ATTR_ITALIC && base.mode & ATTR_BOLD) { - if (dc.ibfont.badslant || dc.ibfont.badweight) - base.fg = defaultattr; - } else if ((base.mode & ATTR_ITALIC && dc.ifont.badslant) || - (base.mode & ATTR_BOLD && dc.bfont.badweight)) { - base.fg = defaultattr; - } - - if (IS_TRUECOL(base.fg)) { - colfg.alpha = 0xffff; - colfg.red = TRUERED(base.fg); - colfg.green = TRUEGREEN(base.fg); - colfg.blue = TRUEBLUE(base.fg); - XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &truefg); - fg = &truefg; - } else { - fg = &dc.col[base.fg]; - } - - if (IS_TRUECOL(base.bg)) { - colbg.alpha = 0xffff; - colbg.green = TRUEGREEN(base.bg); - colbg.red = TRUERED(base.bg); - colbg.blue = TRUEBLUE(base.bg); - XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg, &truebg); - bg = &truebg; - } else { - bg = &dc.col[base.bg]; - } - - /* Change basic system colors [0-7] to bright system colors [8-15] */ - if ((base.mode & ATTR_BOLD_FAINT) == ATTR_BOLD && BETWEEN(base.fg, 0, 7)) - fg = &dc.col[base.fg + 8]; - - 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_BOLD_FAINT) == ATTR_FAINT) { - colfg.red = fg->color.red / 2; - colfg.green = fg->color.green / 2; - colfg.blue = fg->color.blue / 2; - colfg.alpha = fg->color.alpha; - XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &revfg); - fg = &revfg; - } - - if (base.mode & ATTR_REVERSE) { - temp = fg; - fg = bg; - bg = temp; - } - - if (base.mode & ATTR_BLINK && win.mode & MODE_BLINK) - fg = bg; - - if (base.mode & ATTR_INVISIBLE) - fg = bg; - - /* Intelligent cleaning up of the borders. */ - if (x == 0) { - xclear(0, (y == 0) ? 0 : winy, borderpx, - winy + win.ch + ((winy + win.ch >= borderpx + win.th) ? win.h : 0)); - } - if (winx + width >= borderpx + win.tw) { - xclear(winx + width, (y == 0) ? 0 : winy, win.w, - ((winy + win.ch >= borderpx + win.th) ? win.h : (winy + win.ch))); - } - if (y == 0) - xclear(winx, 0, winx + width, borderpx); - if (winy + win.ch >= borderpx + win.th) - xclear(winx, winy + win.ch, winx + width, win.h); - - /* Clean up the region we want to draw to. */ - XftDrawRect(xw.draw, bg, winx, winy, width, win.ch); - - /* Set the clip region because Xft is sometimes dirty. */ - r.x = 0; - r.y = 0; - r.height = win.ch; - r.width = width; - XftDrawSetClipRectangles(xw.draw, winx, winy, &r, 1); - - /* Render the glyphs. */ - XftDrawGlyphFontSpec(xw.draw, fg, specs, len); - - /* Render underline and strikethrough. */ - if (base.mode & ATTR_UNDERLINE) { - XftDrawRect(xw.draw, fg, winx, winy + dc.font.ascent + 1, width, 1); - } - - if (base.mode & ATTR_STRUCK) { - XftDrawRect(xw.draw, fg, winx, winy + 2 * dc.font.ascent / 3, width, 1); - } - - /* Reset clip to none. */ - XftDrawSetClip(xw.draw, 0); -} - -void xdrawglyph(Glyph g, int x, int y) { - int numspecs; - XftGlyphFontSpec spec; - - numspecs = xmakeglyphfontspecs(&spec, &g, 1, x, y); - xdrawglyphfontspecs(&spec, g, numspecs, x, y); -} - -void xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og) { - Color drawcol; - - /* remove the old cursor */ - if (selected(ox, oy)) - og.mode ^= ATTR_REVERSE; - xdrawglyph(og, ox, oy); - - if (IS_SET(MODE_HIDE)) - return; - - /* - * Select the right color for the right mode. - */ - g.mode &= ATTR_BOLD | ATTR_ITALIC | ATTR_UNDERLINE | ATTR_STRUCK | ATTR_WIDE; - - if (IS_SET(MODE_REVERSE)) { - g.mode |= ATTR_REVERSE; - g.bg = defaultfg; - if (selected(cx, cy)) { - drawcol = dc.col[defaultcs]; - g.fg = defaultrcs; - } else { - drawcol = dc.col[defaultrcs]; - g.fg = defaultcs; - } - } else { - if (selected(cx, cy)) { - g.fg = defaultfg; - g.bg = defaultrcs; - } else { - g.fg = defaultbg; - g.bg = defaultcs; - } - drawcol = dc.col[g.bg]; - } - - /* draw the new one */ - if (IS_SET(MODE_FOCUSED)) { - switch (win.cursor) { - case 7: /* st extension */ - g.u = 0x2603; /* snowman (U+2603) */ - /* FALLTHROUGH */ - case 0: /* Blinking Block */ - case 1: /* Blinking Block (Default) */ - case 2: /* Steady Block */ - xdrawglyph(g, cx, cy); - break; - case 3: /* Blinking Underline */ - case 4: /* Steady Underline */ - XftDrawRect(xw.draw, &drawcol, borderpx + cx * win.cw, - borderpx + (cy + 1) * win.ch - cursorthickness, win.cw, - cursorthickness); - break; - case 5: /* Blinking bar */ - case 6: /* Steady bar */ - XftDrawRect(xw.draw, &drawcol, borderpx + cx * win.cw, - borderpx + cy * win.ch, cursorthickness, win.ch); - break; - } - } else { - XftDrawRect(xw.draw, &drawcol, borderpx + cx * win.cw, - borderpx + cy * win.ch, win.cw - 1, 1); - XftDrawRect(xw.draw, &drawcol, borderpx + cx * win.cw, - borderpx + cy * win.ch, 1, win.ch - 1); - XftDrawRect(xw.draw, &drawcol, borderpx + (cx + 1) * win.cw - 1, - borderpx + cy * win.ch, 1, win.ch - 1); - XftDrawRect(xw.draw, &drawcol, borderpx + cx * win.cw, - borderpx + (cy + 1) * win.ch - 1, win.cw, 1); - } -} - -void xsetenv(void) { - char buf[sizeof(long) * 8 + 1]; - - snprintf(buf, sizeof(buf), "%lu", xw.win); - setenv("WINDOWID", buf, 1); -} - -void xseticontitle(char *p) { - XTextProperty prop; - DEFAULT(p, opt_title); - - Xutf8TextListToTextProperty(xw.dpy, &p, 1, XUTF8StringStyle, &prop); - XSetWMIconName(xw.dpy, xw.win, &prop); - XSetTextProperty(xw.dpy, xw.win, &prop, xw.netwmiconname); - XFree(prop.value); -} - -void xsettitle(char *p) { - XTextProperty prop; - DEFAULT(p, opt_title); - - Xutf8TextListToTextProperty(xw.dpy, &p, 1, XUTF8StringStyle, &prop); - XSetWMName(xw.dpy, xw.win, &prop); - XSetTextProperty(xw.dpy, xw.win, &prop, xw.netwmname); - XFree(prop.value); -} - -int xstartdraw(void) { return IS_SET(MODE_VISIBLE); } - -void xdrawline(Line line, int x1, int y1, int x2) { - int i, x, ox, numspecs; - Glyph base, new; - XftGlyphFontSpec *specs = xw.specbuf; - - numspecs = xmakeglyphfontspecs(specs, &line[x1], x2 - x1, x1, y1); - i = ox = 0; - for (x = x1; x < x2 && i < numspecs; x++) { - new = line[x]; - if (new.mode == ATTR_WDUMMY) - continue; - if (selected(x, y1)) - new.mode ^= ATTR_REVERSE; - if (i > 0 && ATTRCMP(base, new)) { - xdrawglyphfontspecs(specs, base, i, ox, y1); - specs += i; - numspecs -= i; - i = 0; - } - if (i == 0) { - ox = x; - base = new; - } - i++; - } - if (i > 0) - xdrawglyphfontspecs(specs, base, i, ox, y1); -} - -void xfinishdraw(void) { - XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, 0, 0, win.w, win.h, 0, 0); - XSetForeground(xw.dpy, dc.gc, - dc.col[IS_SET(MODE_REVERSE) ? defaultfg : defaultbg].pixel); -} - -void xximspot(int x, int y) { - if (xw.ime.xic == NULL) - return; - - xw.ime.spot.x = borderpx + x * win.cw; - xw.ime.spot.y = borderpx + (y + 1) * win.ch; - - XSetICValues(xw.ime.xic, XNPreeditAttributes, xw.ime.spotlist, NULL); -} - -void expose(XEvent *ev) { redraw(); } - -void visibility(XEvent *ev) { - XVisibilityEvent *e = &ev->xvisibility; - - MODBIT(win.mode, e->state != VisibilityFullyObscured, MODE_VISIBLE); -} - -void unmap(XEvent *ev) { win.mode &= ~MODE_VISIBLE; } - -void xsetpointermotion(int set) { - MODBIT(xw.attrs.event_mask, set, PointerMotionMask); - XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask, &xw.attrs); -} - -void xsetmode(int set, unsigned int flags) { - int mode = win.mode; - MODBIT(win.mode, set, flags); - if ((win.mode & MODE_REVERSE) != (mode & MODE_REVERSE)) - redraw(); -} - -int xsetcursor(int cursor) { - if (!BETWEEN(cursor, 0, 7)) /* 7: st extension */ - return 1; - win.cursor = cursor; - return 0; -} - -void xseturgency(int add) { - XWMHints *h = XGetWMHints(xw.dpy, xw.win); - - MODBIT(h->flags, add, XUrgencyHint); - XSetWMHints(xw.dpy, xw.win, h); - XFree(h); -} - -void xbell(void) { - if (!(IS_SET(MODE_FOCUSED))) - xseturgency(1); - if (bellvolume) - XkbBell(xw.dpy, xw.win, bellvolume, (Atom)NULL); -} - -void focus(XEvent *ev) { - XFocusChangeEvent *e = &ev->xfocus; - - if (e->mode == NotifyGrab) - return; - - if (ev->type == FocusIn) { - if (xw.ime.xic) - XSetICFocus(xw.ime.xic); - win.mode |= MODE_FOCUSED; - xseturgency(0); - if (IS_SET(MODE_FOCUS)) - ttywrite("\033[I", 3, 0); - } else { - if (xw.ime.xic) - XUnsetICFocus(xw.ime.xic); - win.mode &= ~MODE_FOCUSED; - if (IS_SET(MODE_FOCUS)) - ttywrite("\033[O", 3, 0); - } -} - -int match(uint mask, uint state) { - return mask == XK_ANY_MOD || mask == (state & ~ignoremod); -} - -char *kmap(KeySym k, uint state) { - Key *kp; - int i; - - /* Check for mapped keys out of X11 function keys. */ - for (i = 0; i < LEN(mappedkeys); i++) { - if (mappedkeys[i] == k) - break; - } - if (i == LEN(mappedkeys)) { - if ((k & 0xFFFF) < 0xFD00) - return NULL; - } - - for (kp = key; kp < key + LEN(key); kp++) { - if (kp->k != k) - continue; - - if (!match(kp->mask, state)) - continue; - - if (IS_SET(MODE_APPKEYPAD) ? kp->appkey < 0 : kp->appkey > 0) - continue; - if (IS_SET(MODE_NUMLOCK) && kp->appkey == 2) - continue; - - if (IS_SET(MODE_APPCURSOR) ? kp->appcursor < 0 : kp->appcursor > 0) - continue; - - return kp->s; - } - - return NULL; -} - -void kpress(XEvent *ev) { - XKeyEvent *e = &ev->xkey; - KeySym ksym; - char buf[64], *customkey; - int len; - Rune c; - Status status; - Shortcut *bp; - - if (IS_SET(MODE_KBDLOCK)) - return; - - if (xw.ime.xic) - len = XmbLookupString(xw.ime.xic, e, buf, sizeof buf, &ksym, &status); - else - len = XLookupString(e, buf, sizeof buf, &ksym, NULL); - /* 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))) { - ttywrite(customkey, strlen(customkey), 1); - return; - } - - /* 3. composed string from input method */ - if (len == 0) - return; - if (len == 1 && e->state & Mod1Mask) { - if (IS_SET(MODE_8BIT)) { - if (*buf < 0177) { - c = *buf | 0x80; - len = utf8encode(c, buf); - } - } else { - buf[1] = buf[0]; - buf[0] = '\033'; - len = 2; - } - } - ttywrite(buf, len, 1); -} - -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) { - win.mode |= MODE_FOCUSED; - xseturgency(0); - } else if (e->xclient.data.l[1] == XEMBED_FOCUS_OUT) { - win.mode &= ~MODE_FOCUSED; - } - } else if (e->xclient.data.l[0] == xw.wmdeletewin) { - ttyhangup(); - exit(0); - } -} - -void resize(XEvent *e) { - if (e->xconfigure.width == win.w && e->xconfigure.height == win.h) - return; - - cresize(e->xconfigure.width, e->xconfigure.height); -} - -int tinsync(uint); -int ttyread_pending(); - -void run(void) { - XEvent ev; - int w = win.w, h = win.h; - fd_set rfd; - int xfd = XConnectionNumber(xw.dpy), ttyfd, xev, drawing; - struct timespec seltv, *tv, now, lastblink, trigger; - double timeout; - - /* Waiting for window mapping */ - do { - XNextEvent(xw.dpy, &ev); - /* - * This XFilterEvent call is required because of XOpenIM. It - * does filter out the key event and some client message for - * the input method too. - */ - if (XFilterEvent(&ev, None)) - continue; - if (ev.type == ConfigureNotify) { - w = ev.xconfigure.width; - h = ev.xconfigure.height; - } - } while (ev.type != MapNotify); - - ttyfd = ttynew(opt_line, shell, opt_io, opt_cmd); - cresize(w, h); - - for (timeout = -1, drawing = 0, lastblink = (struct timespec){0};;) { - FD_ZERO(&rfd); - FD_SET(ttyfd, &rfd); - FD_SET(xfd, &rfd); - - if (XPending(xw.dpy) || ttyread_pending()) - timeout = 0; /* existing events might not set xfd */ - - seltv.tv_sec = timeout / 1E3; - seltv.tv_nsec = 1E6 * (timeout - 1E3 * seltv.tv_sec); - tv = timeout >= 0 ? &seltv : NULL; - - if (pselect(MAX(xfd, ttyfd) + 1, &rfd, NULL, NULL, tv, NULL) < 0) { - if (errno == EINTR) - continue; - die("select failed: %s\n", strerror(errno)); - } - clock_gettime(CLOCK_MONOTONIC, &now); - - int ttyin = FD_ISSET(ttyfd, &rfd) || ttyread_pending(); - if (ttyin) - ttyread(); - - xev = 0; - while (XPending(xw.dpy)) { - xev = 1; - XNextEvent(xw.dpy, &ev); - if (XFilterEvent(&ev, None)) - continue; - if (handler[ev.type]) - (handler[ev.type])(&ev); - } - - /* - * To reduce flicker and tearing, when new content or event - * triggers drawing, we first wait a bit to ensure we got - * everything, and if nothing new arrives - we draw. - * We start with trying to wait minlatency ms. If more content - * arrives sooner, we retry with shorter and shorter periods, - * and eventually draw even without idle after maxlatency ms. - * Typically this results in low latency while interacting, - * maximum latency intervals during `cat huge.txt`, and perfect - * sync with periodic updates from animations/key-repeats/etc. - */ - if (ttyin || xev) { - if (!drawing) { - trigger = now; - drawing = 1; - } - timeout = (maxlatency - TIMEDIFF(now, trigger)) / maxlatency * minlatency; - if (timeout > 0) - continue; /* we have time, try to find idle */ - } - - if (tinsync(su_timeout)) { - /* - * on synchronized-update draw-suspension: don't reset - * drawing so that we draw ASAP once we can (just after - * ESU). it won't be too soon because we already can - * draw now but we skip. we set timeout > 0 to draw on - * SU-timeout even without new content. - */ - timeout = minlatency; - continue; - } - - /* idle detected or maxlatency exhausted -> draw */ - timeout = -1; - if (blinktimeout && tattrset(ATTR_BLINK)) { - timeout = blinktimeout - TIMEDIFF(now, lastblink); - if (timeout <= 0) { - if (-timeout > blinktimeout) /* start visible */ - win.mode |= MODE_BLINK; - win.mode ^= MODE_BLINK; - tsetdirtattr(ATTR_BLINK); - lastblink = now; - timeout = blinktimeout; - } - } - - draw(); - XFlush(xw.dpy); - drawing = 0; - } -} - -int resource_load(XrmDatabase db, char *name, enum resource_type rtype, - void *dst) { - char **sdst = dst; - int *idst = dst; - float *fdst = dst; - - char fullname[256]; - char fullclass[256]; - char *type; - XrmValue ret; - - snprintf(fullname, sizeof(fullname), "%s.%s", opt_name ? opt_name : "st", - name); - snprintf(fullclass, sizeof(fullclass), "%s.%s", opt_class ? opt_class : "St", - name); - fullname[sizeof(fullname) - 1] = fullclass[sizeof(fullclass) - 1] = '\0'; - - XrmGetResource(db, fullname, fullclass, &type, &ret); - if (ret.addr == NULL || strncmp("String", type, 64)) - return 1; - - switch (rtype) { - case STRING: - *sdst = ret.addr; - break; - case INTEGER: - *idst = strtoul(ret.addr, NULL, 10); - break; - case FLOAT: - *fdst = strtof(ret.addr, NULL); - break; - } - return 0; -} - -void config_init(void) { - char *resm; - XrmDatabase db; - ResourcePref *p; - - XrmInitialize(); - resm = XResourceManagerString(xw.dpy); - if (!resm) - return; - - db = XrmGetStringDatabase(resm); - for (p = resources; p < resources + LEN(resources); p++) - resource_load(db, p->name, p->type, p->dst); -} - -void usage(void) { - die("usage: %s [-aiv] [-c class] [-f font] [-g geometry]" - " [-n name] [-o file]\n" - " [-T title] [-t title] [-w windowid]" - " [[-e] command [args ...]]\n" - " %s [-aiv] [-c class] [-f font] [-g geometry]" - " [-n name] [-o file]\n" - " [-T title] [-t title] [-w windowid] -l line" - " [stty_args ...]\n", - argv0, argv0); -} - -int main(int argc, char *argv[]) { - xw.l = xw.t = 0; - xw.isfixed = False; - xsetcursor(cursorshape); - - ARGBEGIN { - case 'a': - allowaltscreen = 0; - break; - case 'c': - opt_class = EARGF(usage()); - break; - case 'e': - if (argc > 0) - --argc, ++argv; - goto run; - case 'f': - opt_font = EARGF(usage()); - break; - case 'g': - xw.gm = XParseGeometry(EARGF(usage()), &xw.l, &xw.t, &cols, &rows); - break; - case 'i': - xw.isfixed = 1; - break; - case 'o': - opt_io = EARGF(usage()); - break; - case 'l': - opt_line = EARGF(usage()); - break; - case 'n': - opt_name = EARGF(usage()); - break; - case 't': - case 'T': - opt_title = EARGF(usage()); - break; - case 'w': - opt_embed = EARGF(usage()); - break; - case 'v': - die("%s " VERSION "\n", argv0); - break; - default: - usage(); - } - ARGEND; - -run: - if (argc > 0) /* eat all remaining arguments */ - opt_cmd = argv; - - if (!opt_title) - opt_title = (opt_line || !opt_cmd) ? "st" : opt_cmd[0]; - - setlocale(LC_CTYPE, ""); - XSetLocaleModifiers(""); - - if (!(xw.dpy = XOpenDisplay(NULL))) - die("Can't open display\n"); - - config_init(); - cols = MAX(cols, 1); - rows = MAX(rows, 1); - tnew(cols, rows); - xinit(cols, rows); - xsetenv(); - selinit(); - run(); - - return 0; -} |