From 1865c95a268cc76013079169fe91e678bd5e631f Mon Sep 17 00:00:00 2001 From: Luca Bilke Date: Tue, 13 Jun 2023 21:41:39 +0200 Subject: [PATCH] boxdraw + ligatures --- Makefile | 6 +- boxdraw.c | 194 ++++++ boxdraw_data.h | 214 ++++++ config.def.h | 12 + config.h | 486 ++++++++++++++ config.mk | 6 +- hb.c | 124 ++++ hb.h | 14 + patches/st-boxdraw_v2-0.8.5.diff | 583 ++++++++++++++++ .../st-ligatures-boxdraw-20230105-0.9.diff | 624 ++++++++++++++++++ st.c | 6 +- st.h | 13 +- win.h | 2 +- x.c | 297 +++++---- 14 files changed, 2459 insertions(+), 122 deletions(-) create mode 100644 boxdraw.c create mode 100644 boxdraw_data.h create mode 100644 config.h create mode 100644 hb.c create mode 100644 hb.h create mode 100644 patches/st-boxdraw_v2-0.8.5.diff create mode 100644 patches/st-ligatures-boxdraw-20230105-0.9.diff diff --git a/Makefile b/Makefile index 470ac86..adfa07a 100644 --- a/Makefile +++ b/Makefile @@ -4,7 +4,7 @@ include config.mk -SRC = st.c x.c +SRC = st.c x.c boxdraw.c hb.c OBJ = $(SRC:.c=.o) all: options st @@ -22,7 +22,9 @@ config.h: $(CC) $(STCFLAGS) -c $< st.o: config.h st.h win.h -x.o: arg.h config.h st.h win.h +x.o: arg.h config.h st.h win.h hb.h +boxdraw.o: config.h st.h boxdraw_data.h +hb.o: st.h $(OBJ): config.h config.mk diff --git a/boxdraw.c b/boxdraw.c new file mode 100644 index 0000000..28a92d0 --- /dev/null +++ b/boxdraw.c @@ -0,0 +1,194 @@ +/* + * Copyright 2018 Avi Halachmi (:avih) avihpit@yahoo.com https://github.com/avih + * MIT/X Consortium License + */ + +#include +#include "st.h" +#include "boxdraw_data.h" + +/* Rounded non-negative integers division of n / d */ +#define DIV(n, d) (((n) + (d) / 2) / (d)) + +static Display *xdpy; +static Colormap xcmap; +static XftDraw *xd; +static Visual *xvis; + +static void drawbox(int, int, int, int, XftColor *, XftColor *, ushort); +static void drawboxlines(int, int, int, int, XftColor *, ushort); + +/* public API */ + +void +boxdraw_xinit(Display *dpy, Colormap cmap, XftDraw *draw, Visual *vis) +{ + xdpy = dpy; xcmap = cmap; xd = draw, xvis = vis; +} + +int +isboxdraw(Rune u) +{ + Rune block = u & ~0xff; + return (boxdraw && block == 0x2500 && boxdata[(uint8_t)u]) || + (boxdraw_braille && block == 0x2800); +} + +/* the "index" is actually the entire shape data encoded as ushort */ +ushort +boxdrawindex(const Glyph *g) +{ + if (boxdraw_braille && (g->u & ~0xff) == 0x2800) + return BRL | (uint8_t)g->u; + if (boxdraw_bold && (g->mode & ATTR_BOLD)) + return BDB | boxdata[(uint8_t)g->u]; + return boxdata[(uint8_t)g->u]; +} + +void +drawboxes(int x, int y, int cw, int ch, XftColor *fg, XftColor *bg, + const XftGlyphFontSpec *specs, int len) +{ + for ( ; len-- > 0; x += cw, specs++) + drawbox(x, y, cw, ch, fg, bg, (ushort)specs->glyph); +} + +/* implementation */ + +void +drawbox(int x, int y, int w, int h, XftColor *fg, XftColor *bg, ushort bd) +{ + ushort cat = bd & ~(BDB | 0xff); /* mask out bold and data */ + if (bd & (BDL | BDA)) { + /* lines (light/double/heavy/arcs) */ + drawboxlines(x, y, w, h, fg, bd); + + } else if (cat == BBD) { + /* lower (8-X)/8 block */ + int d = DIV((uint8_t)bd * h, 8); + XftDrawRect(xd, fg, x, y + d, w, h - d); + + } else if (cat == BBU) { + /* upper X/8 block */ + XftDrawRect(xd, fg, x, y, w, DIV((uint8_t)bd * h, 8)); + + } else if (cat == BBL) { + /* left X/8 block */ + XftDrawRect(xd, fg, x, y, DIV((uint8_t)bd * w, 8), h); + + } else if (cat == BBR) { + /* right (8-X)/8 block */ + int d = DIV((uint8_t)bd * w, 8); + XftDrawRect(xd, fg, x + d, y, w - d, h); + + } else if (cat == BBQ) { + /* Quadrants */ + int w2 = DIV(w, 2), h2 = DIV(h, 2); + if (bd & TL) + XftDrawRect(xd, fg, x, y, w2, h2); + if (bd & TR) + XftDrawRect(xd, fg, x + w2, y, w - w2, h2); + if (bd & BL) + XftDrawRect(xd, fg, x, y + h2, w2, h - h2); + if (bd & BR) + XftDrawRect(xd, fg, x + w2, y + h2, w - w2, h - h2); + + } else if (bd & BBS) { + /* Shades - data is 1/2/3 for 25%/50%/75% alpha, respectively */ + int d = (uint8_t)bd; + XftColor xfc; + XRenderColor xrc = { .alpha = 0xffff }; + + xrc.red = DIV(fg->color.red * d + bg->color.red * (4 - d), 4); + xrc.green = DIV(fg->color.green * d + bg->color.green * (4 - d), 4); + xrc.blue = DIV(fg->color.blue * d + bg->color.blue * (4 - d), 4); + + XftColorAllocValue(xdpy, xvis, xcmap, &xrc, &xfc); + XftDrawRect(xd, &xfc, x, y, w, h); + XftColorFree(xdpy, xvis, xcmap, &xfc); + + } else if (cat == BRL) { + /* braille, each data bit corresponds to one dot at 2x4 grid */ + int w1 = DIV(w, 2); + int h1 = DIV(h, 4), h2 = DIV(h, 2), h3 = DIV(3 * h, 4); + + if (bd & 1) XftDrawRect(xd, fg, x, y, w1, h1); + if (bd & 2) XftDrawRect(xd, fg, x, y + h1, w1, h2 - h1); + if (bd & 4) XftDrawRect(xd, fg, x, y + h2, w1, h3 - h2); + if (bd & 8) XftDrawRect(xd, fg, x + w1, y, w - w1, h1); + if (bd & 16) XftDrawRect(xd, fg, x + w1, y + h1, w - w1, h2 - h1); + if (bd & 32) XftDrawRect(xd, fg, x + w1, y + h2, w - w1, h3 - h2); + if (bd & 64) XftDrawRect(xd, fg, x, y + h3, w1, h - h3); + if (bd & 128) XftDrawRect(xd, fg, x + w1, y + h3, w - w1, h - h3); + + } +} + +void +drawboxlines(int x, int y, int w, int h, XftColor *fg, ushort bd) +{ + /* s: stem thickness. width/8 roughly matches underscore thickness. */ + /* We draw bold as 1.5 * normal-stem and at least 1px thicker. */ + /* doubles draw at least 3px, even when w or h < 3. bold needs 6px. */ + int mwh = MIN(w, h); + int base_s = MAX(1, DIV(mwh, 8)); + int bold = (bd & BDB) && mwh >= 6; /* possibly ignore boldness */ + int s = bold ? MAX(base_s + 1, DIV(3 * base_s, 2)) : base_s; + int w2 = DIV(w - s, 2), h2 = DIV(h - s, 2); + /* the s-by-s square (x + w2, y + h2, s, s) is the center texel. */ + /* The base length (per direction till edge) includes this square. */ + + int light = bd & (LL | LU | LR | LD); + int double_ = bd & (DL | DU | DR | DD); + + if (light) { + /* d: additional (negative) length to not-draw the center */ + /* texel - at arcs and avoid drawing inside (some) doubles */ + int arc = bd & BDA; + int multi_light = light & (light - 1); + int multi_double = double_ & (double_ - 1); + /* light crosses double only at DH+LV, DV+LH (ref. shapes) */ + int d = arc || (multi_double && !multi_light) ? -s : 0; + + if (bd & LL) + XftDrawRect(xd, fg, x, y + h2, w2 + s + d, s); + if (bd & LU) + XftDrawRect(xd, fg, x + w2, y, s, h2 + s + d); + if (bd & LR) + XftDrawRect(xd, fg, x + w2 - d, y + h2, w - w2 + d, s); + if (bd & LD) + XftDrawRect(xd, fg, x + w2, y + h2 - d, s, h - h2 + d); + } + + /* double lines - also align with light to form heavy when combined */ + if (double_) { + /* + * going clockwise, for each double-ray: p is additional length + * to the single-ray nearer to the previous direction, and n to + * the next. p and n adjust from the base length to lengths + * which consider other doubles - shorter to avoid intersections + * (p, n), or longer to draw the far-corner texel (n). + */ + int dl = bd & DL, du = bd & DU, dr = bd & DR, dd = bd & DD; + if (dl) { + int p = dd ? -s : 0, n = du ? -s : dd ? s : 0; + XftDrawRect(xd, fg, x, y + h2 + s, w2 + s + p, s); + XftDrawRect(xd, fg, x, y + h2 - s, w2 + s + n, s); + } + if (du) { + int p = dl ? -s : 0, n = dr ? -s : dl ? s : 0; + XftDrawRect(xd, fg, x + w2 - s, y, s, h2 + s + p); + XftDrawRect(xd, fg, x + w2 + s, y, s, h2 + s + n); + } + if (dr) { + int p = du ? -s : 0, n = dd ? -s : du ? s : 0; + XftDrawRect(xd, fg, x + w2 - p, y + h2 - s, w - w2 + p, s); + XftDrawRect(xd, fg, x + w2 - n, y + h2 + s, w - w2 + n, s); + } + if (dd) { + int p = dr ? -s : 0, n = dl ? -s : dr ? s : 0; + XftDrawRect(xd, fg, x + w2 + s, y + h2 - p, s, h - h2 + p); + XftDrawRect(xd, fg, x + w2 - s, y + h2 - n, s, h - h2 + n); + } + } +} diff --git a/boxdraw_data.h b/boxdraw_data.h new file mode 100644 index 0000000..7890500 --- /dev/null +++ b/boxdraw_data.h @@ -0,0 +1,214 @@ +/* + * Copyright 2018 Avi Halachmi (:avih) avihpit@yahoo.com https://github.com/avih + * MIT/X Consortium License + */ + +/* + * U+25XX codepoints data + * + * References: + * http://www.unicode.org/charts/PDF/U2500.pdf + * http://www.unicode.org/charts/PDF/U2580.pdf + * + * Test page: + * https://github.com/GNOME/vte/blob/master/doc/boxes.txt + */ + +/* Each shape is encoded as 16-bits. Higher bits are category, lower are data */ +/* Categories (mutually exclusive except BDB): */ +/* For convenience, BDL/BDA/BBS/BDB are 1 bit each, the rest are enums */ +#define BDL (1<<8) /* Box Draw Lines (light/double/heavy) */ +#define BDA (1<<9) /* Box Draw Arc (light) */ + +#define BBD (1<<10) /* Box Block Down (lower) X/8 */ +#define BBL (2<<10) /* Box Block Left X/8 */ +#define BBU (3<<10) /* Box Block Upper X/8 */ +#define BBR (4<<10) /* Box Block Right X/8 */ +#define BBQ (5<<10) /* Box Block Quadrants */ +#define BRL (6<<10) /* Box Braille (data is lower byte of U28XX) */ + +#define BBS (1<<14) /* Box Block Shades */ +#define BDB (1<<15) /* Box Draw is Bold */ + +/* (BDL/BDA) Light/Double/Heavy x Left/Up/Right/Down/Horizontal/Vertical */ +/* Heavy is light+double (literally drawing light+double align to form heavy) */ +#define LL (1<<0) +#define LU (1<<1) +#define LR (1<<2) +#define LD (1<<3) +#define LH (LL+LR) +#define LV (LU+LD) + +#define DL (1<<4) +#define DU (1<<5) +#define DR (1<<6) +#define DD (1<<7) +#define DH (DL+DR) +#define DV (DU+DD) + +#define HL (LL+DL) +#define HU (LU+DU) +#define HR (LR+DR) +#define HD (LD+DD) +#define HH (HL+HR) +#define HV (HU+HD) + +/* (BBQ) Quadrants Top/Bottom x Left/Right */ +#define TL (1<<0) +#define TR (1<<1) +#define BL (1<<2) +#define BR (1<<3) + +/* Data for U+2500 - U+259F except dashes/diagonals */ +static const unsigned short boxdata[256] = { + /* light lines */ + [0x00] = BDL + LH, /* light horizontal */ + [0x02] = BDL + LV, /* light vertical */ + [0x0c] = BDL + LD + LR, /* light down and right */ + [0x10] = BDL + LD + LL, /* light down and left */ + [0x14] = BDL + LU + LR, /* light up and right */ + [0x18] = BDL + LU + LL, /* light up and left */ + [0x1c] = BDL + LV + LR, /* light vertical and right */ + [0x24] = BDL + LV + LL, /* light vertical and left */ + [0x2c] = BDL + LH + LD, /* light horizontal and down */ + [0x34] = BDL + LH + LU, /* light horizontal and up */ + [0x3c] = BDL + LV + LH, /* light vertical and horizontal */ + [0x74] = BDL + LL, /* light left */ + [0x75] = BDL + LU, /* light up */ + [0x76] = BDL + LR, /* light right */ + [0x77] = BDL + LD, /* light down */ + + /* heavy [+light] lines */ + [0x01] = BDL + HH, + [0x03] = BDL + HV, + [0x0d] = BDL + HR + LD, + [0x0e] = BDL + HD + LR, + [0x0f] = BDL + HD + HR, + [0x11] = BDL + HL + LD, + [0x12] = BDL + HD + LL, + [0x13] = BDL + HD + HL, + [0x15] = BDL + HR + LU, + [0x16] = BDL + HU + LR, + [0x17] = BDL + HU + HR, + [0x19] = BDL + HL + LU, + [0x1a] = BDL + HU + LL, + [0x1b] = BDL + HU + HL, + [0x1d] = BDL + HR + LV, + [0x1e] = BDL + HU + LD + LR, + [0x1f] = BDL + HD + LR + LU, + [0x20] = BDL + HV + LR, + [0x21] = BDL + HU + HR + LD, + [0x22] = BDL + HD + HR + LU, + [0x23] = BDL + HV + HR, + [0x25] = BDL + HL + LV, + [0x26] = BDL + HU + LD + LL, + [0x27] = BDL + HD + LU + LL, + [0x28] = BDL + HV + LL, + [0x29] = BDL + HU + HL + LD, + [0x2a] = BDL + HD + HL + LU, + [0x2b] = BDL + HV + HL, + [0x2d] = BDL + HL + LD + LR, + [0x2e] = BDL + HR + LL + LD, + [0x2f] = BDL + HH + LD, + [0x30] = BDL + HD + LH, + [0x31] = BDL + HD + HL + LR, + [0x32] = BDL + HR + HD + LL, + [0x33] = BDL + HH + HD, + [0x35] = BDL + HL + LU + LR, + [0x36] = BDL + HR + LU + LL, + [0x37] = BDL + HH + LU, + [0x38] = BDL + HU + LH, + [0x39] = BDL + HU + HL + LR, + [0x3a] = BDL + HU + HR + LL, + [0x3b] = BDL + HH + HU, + [0x3d] = BDL + HL + LV + LR, + [0x3e] = BDL + HR + LV + LL, + [0x3f] = BDL + HH + LV, + [0x40] = BDL + HU + LH + LD, + [0x41] = BDL + HD + LH + LU, + [0x42] = BDL + HV + LH, + [0x43] = BDL + HU + HL + LD + LR, + [0x44] = BDL + HU + HR + LD + LL, + [0x45] = BDL + HD + HL + LU + LR, + [0x46] = BDL + HD + HR + LU + LL, + [0x47] = BDL + HH + HU + LD, + [0x48] = BDL + HH + HD + LU, + [0x49] = BDL + HV + HL + LR, + [0x4a] = BDL + HV + HR + LL, + [0x4b] = BDL + HV + HH, + [0x78] = BDL + HL, + [0x79] = BDL + HU, + [0x7a] = BDL + HR, + [0x7b] = BDL + HD, + [0x7c] = BDL + HR + LL, + [0x7d] = BDL + HD + LU, + [0x7e] = BDL + HL + LR, + [0x7f] = BDL + HU + LD, + + /* double [+light] lines */ + [0x50] = BDL + DH, + [0x51] = BDL + DV, + [0x52] = BDL + DR + LD, + [0x53] = BDL + DD + LR, + [0x54] = BDL + DR + DD, + [0x55] = BDL + DL + LD, + [0x56] = BDL + DD + LL, + [0x57] = BDL + DL + DD, + [0x58] = BDL + DR + LU, + [0x59] = BDL + DU + LR, + [0x5a] = BDL + DU + DR, + [0x5b] = BDL + DL + LU, + [0x5c] = BDL + DU + LL, + [0x5d] = BDL + DL + DU, + [0x5e] = BDL + DR + LV, + [0x5f] = BDL + DV + LR, + [0x60] = BDL + DV + DR, + [0x61] = BDL + DL + LV, + [0x62] = BDL + DV + LL, + [0x63] = BDL + DV + DL, + [0x64] = BDL + DH + LD, + [0x65] = BDL + DD + LH, + [0x66] = BDL + DD + DH, + [0x67] = BDL + DH + LU, + [0x68] = BDL + DU + LH, + [0x69] = BDL + DH + DU, + [0x6a] = BDL + DH + LV, + [0x6b] = BDL + DV + LH, + [0x6c] = BDL + DH + DV, + + /* (light) arcs */ + [0x6d] = BDA + LD + LR, + [0x6e] = BDA + LD + LL, + [0x6f] = BDA + LU + LL, + [0x70] = BDA + LU + LR, + + /* Lower (Down) X/8 block (data is 8 - X) */ + [0x81] = BBD + 7, [0x82] = BBD + 6, [0x83] = BBD + 5, [0x84] = BBD + 4, + [0x85] = BBD + 3, [0x86] = BBD + 2, [0x87] = BBD + 1, [0x88] = BBD + 0, + + /* Left X/8 block (data is X) */ + [0x89] = BBL + 7, [0x8a] = BBL + 6, [0x8b] = BBL + 5, [0x8c] = BBL + 4, + [0x8d] = BBL + 3, [0x8e] = BBL + 2, [0x8f] = BBL + 1, + + /* upper 1/2 (4/8), 1/8 block (X), right 1/2, 1/8 block (8-X) */ + [0x80] = BBU + 4, [0x94] = BBU + 1, + [0x90] = BBR + 4, [0x95] = BBR + 7, + + /* Quadrants */ + [0x96] = BBQ + BL, + [0x97] = BBQ + BR, + [0x98] = BBQ + TL, + [0x99] = BBQ + TL + BL + BR, + [0x9a] = BBQ + TL + BR, + [0x9b] = BBQ + TL + TR + BL, + [0x9c] = BBQ + TL + TR + BR, + [0x9d] = BBQ + TR, + [0x9e] = BBQ + BL + TR, + [0x9f] = BBQ + BL + TR + BR, + + /* Shades, data is an alpha value in 25% units (1/4, 1/2, 3/4) */ + [0x91] = BBS + 1, [0x92] = BBS + 2, [0x93] = BBS + 3, + + /* U+2504 - U+250B, U+254C - U+254F: unsupported (dashes) */ + /* U+2571 - U+2573: unsupported (diagonals) */ +}; diff --git a/config.def.h b/config.def.h index 91ab8ca..7bb3ff7 100644 --- a/config.def.h +++ b/config.def.h @@ -67,6 +67,18 @@ static unsigned int blinktimeout = 800; */ static unsigned int cursorthickness = 2; +/* + * 1: render most of the lines/blocks characters without using the font for + * perfect alignment between cells (U2500 - U259F except dashes/diagonals). + * Bold affects lines thickness if boxdraw_bold is not 0. Italic is ignored. + * 0: disable (render all U25XX glyphs normally from the font). + */ +const int boxdraw = 0; +const int boxdraw_bold = 0; + +/* braille (U28XX): 1: render as adjacent "pixels", 0: use font */ +const int boxdraw_braille = 0; + /* * bell volume. It must be a value between -100 and 100. Use 0 for disabling * it diff --git a/config.h b/config.h new file mode 100644 index 0000000..7bb3ff7 --- /dev/null +++ b/config.h @@ -0,0 +1,486 @@ +/* See LICENSE file for copyright and license details. */ + +/* + * appearance + * + * font: see http://freedesktop.org/software/fontconfig/fontconfig-user.html + */ +static char *font = "Liberation Mono:pixelsize=12:antialias=true:autohint=true"; +static int borderpx = 2; + +/* + * What program is execed by st depends of these precedence rules: + * 1: program passed with -e + * 2: scroll and/or utmp + * 3: SHELL environment variable + * 4: value of shell in /etc/passwd + * 5: value of shell in config.h + */ +static char *shell = "/bin/sh"; +char *utmp = NULL; +/* scroll program: to enable use a string like "scroll" */ +char *scroll = NULL; +char *stty_args = "stty raw pass8 nl -echo -iexten -cstopb 38400"; + +/* identification sequence returned in DA and DECID */ +char *vtiden = "\033[?6c"; + +/* Kerning / character bounding-box multipliers */ +static float cwscale = 1.0; +static float chscale = 1.0; + +/* + * word delimiter string + * + * More advanced example: L" `'\"()[]{}" + */ +wchar_t *worddelimiters = L" "; + +/* selection timeouts (in milliseconds) */ +static unsigned int doubleclicktimeout = 300; +static unsigned int tripleclicktimeout = 600; + +/* alt screens */ +int allowaltscreen = 1; + +/* allow certain non-interactive (insecure) window operations such as: + setting the clipboard text */ +int allowwindowops = 0; + +/* + * draw latency range in ms - from new content/keypress/etc until drawing. + * within this range, st draws when content stops arriving (idle). mostly it's + * near minlatency, but it waits longer for slow updates to avoid partial draw. + * low minlatency will tear/flicker more, as it can "detect" idle too early. + */ +static double minlatency = 8; +static double maxlatency = 33; + +/* + * blinking timeout (set to 0 to disable blinking) for the terminal blinking + * attribute. + */ +static unsigned int blinktimeout = 800; + +/* + * thickness of underline and bar cursors + */ +static unsigned int cursorthickness = 2; + +/* + * 1: render most of the lines/blocks characters without using the font for + * perfect alignment between cells (U2500 - U259F except dashes/diagonals). + * Bold affects lines thickness if boxdraw_bold is not 0. Italic is ignored. + * 0: disable (render all U25XX glyphs normally from the font). + */ +const int boxdraw = 0; +const int boxdraw_bold = 0; + +/* braille (U28XX): 1: render as adjacent "pixels", 0: use font */ +const int boxdraw_braille = 0; + +/* + * bell volume. It must be a value between -100 and 100. Use 0 for disabling + * it + */ +static int bellvolume = 0; + +/* default TERM value */ +char *termname = "st-256color"; + +/* + * spaces per tab + * + * When you are changing this value, don't forget to adapt the »it« value in + * the st.info and appropriately install the st.info in the environment where + * you use this st version. + * + * it#$tabspaces, + * + * Secondly make sure your kernel is not expanding tabs. When running `stty + * -a` »tab0« should appear. You can tell the terminal to not expand tabs by + * running following command: + * + * stty tabs + */ +unsigned int tabspaces = 8; + +/* Terminal colors (16 first used in escape sequence) */ +static const char *colorname[] = { + /* 8 normal colors */ + "black", + "red3", + "green3", + "yellow3", + "blue2", + "magenta3", + "cyan3", + "gray90", + + /* 8 bright colors */ + "gray50", + "red", + "green", + "yellow", + "#5c5cff", + "magenta", + "cyan", + "white", + + [255] = 0, + + /* more colors can be added after 255 to use with DefaultXX */ + "#cccccc", + "#555555", + "gray90", /* default foreground colour */ + "black", /* default background colour */ +}; + + +/* + * Default colors (colorname index) + * foreground, background, cursor, reverse cursor + */ +unsigned int defaultfg = 258; +unsigned int defaultbg = 259; +unsigned int defaultcs = 256; +static unsigned int defaultrcs = 257; + +/* + * Default shape of cursor + * 2: Block ("█") + * 4: Underline ("_") + * 6: Bar ("|") + * 7: Snowman ("☃") + */ +static unsigned int cursorshape = 2; + +/* + * Default columns and rows numbers + */ + +static unsigned int cols = 80; +static unsigned int rows = 24; + +/* + * Default colour and shape of the mouse cursor + */ +static unsigned int mouseshape = XC_xterm; +static unsigned int mousefg = 7; +static unsigned int mousebg = 0; + +/* + * Color used to display font attributes when fontconfig selected a font which + * doesn't match the ones requested. + */ +static unsigned int defaultattr = 11; + +/* + * Force mouse select/shortcuts while mask is active (when MODE_MOUSE is set). + * Note that if you want to use ShiftMask with selmasks, set this to an other + * modifier, set to 0 to not use it. + */ +static uint forcemousemod = ShiftMask; + +/* + * Internal mouse shortcuts. + * Beware that overloading Button1 will disable the selection. + */ +static MouseShortcut mshortcuts[] = { + /* mask button function argument release */ + { XK_ANY_MOD, Button2, selpaste, {.i = 0}, 1 }, + { ShiftMask, Button4, ttysend, {.s = "\033[5;2~"} }, + { XK_ANY_MOD, Button4, ttysend, {.s = "\031"} }, + { ShiftMask, Button5, ttysend, {.s = "\033[6;2~"} }, + { XK_ANY_MOD, Button5, ttysend, {.s = "\005"} }, +}; + +/* Internal keyboard shortcuts. */ +#define MODKEY Mod1Mask +#define TERMMOD (ControlMask|ShiftMask) + +static Shortcut shortcuts[] = { + /* mask keysym function argument */ + { XK_ANY_MOD, XK_Break, sendbreak, {.i = 0} }, + { ControlMask, XK_Print, toggleprinter, {.i = 0} }, + { ShiftMask, XK_Print, printscreen, {.i = 0} }, + { XK_ANY_MOD, XK_Print, printsel, {.i = 0} }, + { TERMMOD, XK_Prior, zoom, {.f = +1} }, + { TERMMOD, XK_Next, zoom, {.f = -1} }, + { TERMMOD, XK_Home, zoomreset, {.f = 0} }, + { TERMMOD, XK_C, clipcopy, {.i = 0} }, + { TERMMOD, XK_V, clippaste, {.i = 0} }, + { TERMMOD, XK_Y, selpaste, {.i = 0} }, + { ShiftMask, XK_Insert, selpaste, {.i = 0} }, + { TERMMOD, XK_Num_Lock, numlock, {.i = 0} }, +}; + +/* + * Special keys (change & recompile st.info accordingly) + * + * Mask value: + * * Use XK_ANY_MOD to match the key no matter modifiers state + * * Use XK_NO_MOD to match the key alone (no modifiers) + * appkey value: + * * 0: no value + * * > 0: keypad application mode enabled + * * = 2: term.numlock = 1 + * * < 0: keypad application mode disabled + * appcursor value: + * * 0: no value + * * > 0: cursor application mode enabled + * * < 0: cursor application mode disabled + * + * Be careful with the order of the definitions because st searches in + * this table sequentially, so any XK_ANY_MOD must be in the last + * position for a key. + */ + +/* + * If you want keys other than the X11 function keys (0xFD00 - 0xFFFF) + * to be mapped below, add them to this array. + */ +static KeySym mappedkeys[] = { -1 }; + +/* + * State bits to ignore when matching key or button events. By default, + * numlock (Mod2Mask) and keyboard layout (XK_SWITCH_MOD) are ignored. + */ +static uint ignoremod = Mod2Mask|XK_SWITCH_MOD; + +/* + * This is the huge key array which defines all compatibility to the Linux + * world. Please decide about changes wisely. + */ +static Key key[] = { + /* keysym mask string appkey appcursor */ + { XK_KP_Home, ShiftMask, "\033[2J", 0, -1}, + { XK_KP_Home, ShiftMask, "\033[1;2H", 0, +1}, + { XK_KP_Home, XK_ANY_MOD, "\033[H", 0, -1}, + { XK_KP_Home, XK_ANY_MOD, "\033[1~", 0, +1}, + { XK_KP_Up, XK_ANY_MOD, "\033Ox", +1, 0}, + { XK_KP_Up, XK_ANY_MOD, "\033[A", 0, -1}, + { XK_KP_Up, XK_ANY_MOD, "\033OA", 0, +1}, + { XK_KP_Down, XK_ANY_MOD, "\033Or", +1, 0}, + { XK_KP_Down, XK_ANY_MOD, "\033[B", 0, -1}, + { XK_KP_Down, XK_ANY_MOD, "\033OB", 0, +1}, + { XK_KP_Left, XK_ANY_MOD, "\033Ot", +1, 0}, + { XK_KP_Left, XK_ANY_MOD, "\033[D", 0, -1}, + { XK_KP_Left, XK_ANY_MOD, "\033OD", 0, +1}, + { XK_KP_Right, XK_ANY_MOD, "\033Ov", +1, 0}, + { XK_KP_Right, XK_ANY_MOD, "\033[C", 0, -1}, + { XK_KP_Right, XK_ANY_MOD, "\033OC", 0, +1}, + { XK_KP_Prior, ShiftMask, "\033[5;2~", 0, 0}, + { XK_KP_Prior, XK_ANY_MOD, "\033[5~", 0, 0}, + { XK_KP_Begin, XK_ANY_MOD, "\033[E", 0, 0}, + { XK_KP_End, ControlMask, "\033[J", -1, 0}, + { XK_KP_End, ControlMask, "\033[1;5F", +1, 0}, + { XK_KP_End, ShiftMask, "\033[K", -1, 0}, + { XK_KP_End, ShiftMask, "\033[1;2F", +1, 0}, + { XK_KP_End, XK_ANY_MOD, "\033[4~", 0, 0}, + { XK_KP_Next, ShiftMask, "\033[6;2~", 0, 0}, + { XK_KP_Next, XK_ANY_MOD, "\033[6~", 0, 0}, + { XK_KP_Insert, ShiftMask, "\033[2;2~", +1, 0}, + { XK_KP_Insert, ShiftMask, "\033[4l", -1, 0}, + { XK_KP_Insert, ControlMask, "\033[L", -1, 0}, + { XK_KP_Insert, ControlMask, "\033[2;5~", +1, 0}, + { XK_KP_Insert, XK_ANY_MOD, "\033[4h", -1, 0}, + { XK_KP_Insert, XK_ANY_MOD, "\033[2~", +1, 0}, + { XK_KP_Delete, ControlMask, "\033[M", -1, 0}, + { XK_KP_Delete, ControlMask, "\033[3;5~", +1, 0}, + { XK_KP_Delete, ShiftMask, "\033[2K", -1, 0}, + { XK_KP_Delete, ShiftMask, "\033[3;2~", +1, 0}, + { XK_KP_Delete, XK_ANY_MOD, "\033[P", -1, 0}, + { XK_KP_Delete, XK_ANY_MOD, "\033[3~", +1, 0}, + { XK_KP_Multiply, XK_ANY_MOD, "\033Oj", +2, 0}, + { XK_KP_Add, XK_ANY_MOD, "\033Ok", +2, 0}, + { XK_KP_Enter, XK_ANY_MOD, "\033OM", +2, 0}, + { XK_KP_Enter, XK_ANY_MOD, "\r", -1, 0}, + { XK_KP_Subtract, XK_ANY_MOD, "\033Om", +2, 0}, + { XK_KP_Decimal, XK_ANY_MOD, "\033On", +2, 0}, + { XK_KP_Divide, XK_ANY_MOD, "\033Oo", +2, 0}, + { XK_KP_0, XK_ANY_MOD, "\033Op", +2, 0}, + { XK_KP_1, XK_ANY_MOD, "\033Oq", +2, 0}, + { XK_KP_2, XK_ANY_MOD, "\033Or", +2, 0}, + { XK_KP_3, XK_ANY_MOD, "\033Os", +2, 0}, + { XK_KP_4, XK_ANY_MOD, "\033Ot", +2, 0}, + { XK_KP_5, XK_ANY_MOD, "\033Ou", +2, 0}, + { XK_KP_6, XK_ANY_MOD, "\033Ov", +2, 0}, + { XK_KP_7, XK_ANY_MOD, "\033Ow", +2, 0}, + { XK_KP_8, XK_ANY_MOD, "\033Ox", +2, 0}, + { XK_KP_9, XK_ANY_MOD, "\033Oy", +2, 0}, + { XK_Up, ShiftMask, "\033[1;2A", 0, 0}, + { XK_Up, Mod1Mask, "\033[1;3A", 0, 0}, + { XK_Up, ShiftMask|Mod1Mask,"\033[1;4A", 0, 0}, + { XK_Up, ControlMask, "\033[1;5A", 0, 0}, + { XK_Up, ShiftMask|ControlMask,"\033[1;6A", 0, 0}, + { XK_Up, ControlMask|Mod1Mask,"\033[1;7A", 0, 0}, + { XK_Up,ShiftMask|ControlMask|Mod1Mask,"\033[1;8A", 0, 0}, + { XK_Up, XK_ANY_MOD, "\033[A", 0, -1}, + { XK_Up, XK_ANY_MOD, "\033OA", 0, +1}, + { XK_Down, ShiftMask, "\033[1;2B", 0, 0}, + { XK_Down, Mod1Mask, "\033[1;3B", 0, 0}, + { XK_Down, ShiftMask|Mod1Mask,"\033[1;4B", 0, 0}, + { XK_Down, ControlMask, "\033[1;5B", 0, 0}, + { XK_Down, ShiftMask|ControlMask,"\033[1;6B", 0, 0}, + { XK_Down, ControlMask|Mod1Mask,"\033[1;7B", 0, 0}, + { XK_Down,ShiftMask|ControlMask|Mod1Mask,"\033[1;8B",0, 0}, + { XK_Down, XK_ANY_MOD, "\033[B", 0, -1}, + { XK_Down, XK_ANY_MOD, "\033OB", 0, +1}, + { XK_Left, ShiftMask, "\033[1;2D", 0, 0}, + { XK_Left, Mod1Mask, "\033[1;3D", 0, 0}, + { XK_Left, ShiftMask|Mod1Mask,"\033[1;4D", 0, 0}, + { XK_Left, ControlMask, "\033[1;5D", 0, 0}, + { XK_Left, ShiftMask|ControlMask,"\033[1;6D", 0, 0}, + { XK_Left, ControlMask|Mod1Mask,"\033[1;7D", 0, 0}, + { XK_Left,ShiftMask|ControlMask|Mod1Mask,"\033[1;8D",0, 0}, + { XK_Left, XK_ANY_MOD, "\033[D", 0, -1}, + { XK_Left, XK_ANY_MOD, "\033OD", 0, +1}, + { XK_Right, ShiftMask, "\033[1;2C", 0, 0}, + { XK_Right, Mod1Mask, "\033[1;3C", 0, 0}, + { XK_Right, ShiftMask|Mod1Mask,"\033[1;4C", 0, 0}, + { XK_Right, ControlMask, "\033[1;5C", 0, 0}, + { XK_Right, ShiftMask|ControlMask,"\033[1;6C", 0, 0}, + { XK_Right, ControlMask|Mod1Mask,"\033[1;7C", 0, 0}, + { XK_Right,ShiftMask|ControlMask|Mod1Mask,"\033[1;8C",0, 0}, + { XK_Right, XK_ANY_MOD, "\033[C", 0, -1}, + { XK_Right, XK_ANY_MOD, "\033OC", 0, +1}, + { XK_ISO_Left_Tab, ShiftMask, "\033[Z", 0, 0}, + { XK_Return, Mod1Mask, "\033\r", 0, 0}, + { XK_Return, XK_ANY_MOD, "\r", 0, 0}, + { XK_Insert, ShiftMask, "\033[4l", -1, 0}, + { XK_Insert, ShiftMask, "\033[2;2~", +1, 0}, + { XK_Insert, ControlMask, "\033[L", -1, 0}, + { XK_Insert, ControlMask, "\033[2;5~", +1, 0}, + { XK_Insert, XK_ANY_MOD, "\033[4h", -1, 0}, + { XK_Insert, XK_ANY_MOD, "\033[2~", +1, 0}, + { XK_Delete, ControlMask, "\033[M", -1, 0}, + { XK_Delete, ControlMask, "\033[3;5~", +1, 0}, + { XK_Delete, ShiftMask, "\033[2K", -1, 0}, + { XK_Delete, ShiftMask, "\033[3;2~", +1, 0}, + { XK_Delete, XK_ANY_MOD, "\033[P", -1, 0}, + { XK_Delete, XK_ANY_MOD, "\033[3~", +1, 0}, + { XK_BackSpace, XK_NO_MOD, "\177", 0, 0}, + { XK_BackSpace, Mod1Mask, "\033\177", 0, 0}, + { XK_Home, ShiftMask, "\033[2J", 0, -1}, + { XK_Home, ShiftMask, "\033[1;2H", 0, +1}, + { XK_Home, XK_ANY_MOD, "\033[H", 0, -1}, + { XK_Home, XK_ANY_MOD, "\033[1~", 0, +1}, + { XK_End, ControlMask, "\033[J", -1, 0}, + { XK_End, ControlMask, "\033[1;5F", +1, 0}, + { XK_End, ShiftMask, "\033[K", -1, 0}, + { XK_End, ShiftMask, "\033[1;2F", +1, 0}, + { XK_End, XK_ANY_MOD, "\033[4~", 0, 0}, + { XK_Prior, ControlMask, "\033[5;5~", 0, 0}, + { XK_Prior, ShiftMask, "\033[5;2~", 0, 0}, + { XK_Prior, XK_ANY_MOD, "\033[5~", 0, 0}, + { XK_Next, ControlMask, "\033[6;5~", 0, 0}, + { XK_Next, ShiftMask, "\033[6;2~", 0, 0}, + { XK_Next, XK_ANY_MOD, "\033[6~", 0, 0}, + { XK_F1, XK_NO_MOD, "\033OP" , 0, 0}, + { XK_F1, /* F13 */ ShiftMask, "\033[1;2P", 0, 0}, + { XK_F1, /* F25 */ ControlMask, "\033[1;5P", 0, 0}, + { XK_F1, /* F37 */ Mod4Mask, "\033[1;6P", 0, 0}, + { XK_F1, /* F49 */ Mod1Mask, "\033[1;3P", 0, 0}, + { XK_F1, /* F61 */ Mod3Mask, "\033[1;4P", 0, 0}, + { XK_F2, XK_NO_MOD, "\033OQ" , 0, 0}, + { XK_F2, /* F14 */ ShiftMask, "\033[1;2Q", 0, 0}, + { XK_F2, /* F26 */ ControlMask, "\033[1;5Q", 0, 0}, + { XK_F2, /* F38 */ Mod4Mask, "\033[1;6Q", 0, 0}, + { XK_F2, /* F50 */ Mod1Mask, "\033[1;3Q", 0, 0}, + { XK_F2, /* F62 */ Mod3Mask, "\033[1;4Q", 0, 0}, + { XK_F3, XK_NO_MOD, "\033OR" , 0, 0}, + { XK_F3, /* F15 */ ShiftMask, "\033[1;2R", 0, 0}, + { XK_F3, /* F27 */ ControlMask, "\033[1;5R", 0, 0}, + { XK_F3, /* F39 */ Mod4Mask, "\033[1;6R", 0, 0}, + { XK_F3, /* F51 */ Mod1Mask, "\033[1;3R", 0, 0}, + { XK_F3, /* F63 */ Mod3Mask, "\033[1;4R", 0, 0}, + { XK_F4, XK_NO_MOD, "\033OS" , 0, 0}, + { XK_F4, /* F16 */ ShiftMask, "\033[1;2S", 0, 0}, + { XK_F4, /* F28 */ ControlMask, "\033[1;5S", 0, 0}, + { XK_F4, /* F40 */ Mod4Mask, "\033[1;6S", 0, 0}, + { XK_F4, /* F52 */ Mod1Mask, "\033[1;3S", 0, 0}, + { XK_F5, XK_NO_MOD, "\033[15~", 0, 0}, + { XK_F5, /* F17 */ ShiftMask, "\033[15;2~", 0, 0}, + { XK_F5, /* F29 */ ControlMask, "\033[15;5~", 0, 0}, + { XK_F5, /* F41 */ Mod4Mask, "\033[15;6~", 0, 0}, + { XK_F5, /* F53 */ Mod1Mask, "\033[15;3~", 0, 0}, + { XK_F6, XK_NO_MOD, "\033[17~", 0, 0}, + { XK_F6, /* F18 */ ShiftMask, "\033[17;2~", 0, 0}, + { XK_F6, /* F30 */ ControlMask, "\033[17;5~", 0, 0}, + { XK_F6, /* F42 */ Mod4Mask, "\033[17;6~", 0, 0}, + { XK_F6, /* F54 */ Mod1Mask, "\033[17;3~", 0, 0}, + { XK_F7, XK_NO_MOD, "\033[18~", 0, 0}, + { XK_F7, /* F19 */ ShiftMask, "\033[18;2~", 0, 0}, + { XK_F7, /* F31 */ ControlMask, "\033[18;5~", 0, 0}, + { XK_F7, /* F43 */ Mod4Mask, "\033[18;6~", 0, 0}, + { XK_F7, /* F55 */ Mod1Mask, "\033[18;3~", 0, 0}, + { XK_F8, XK_NO_MOD, "\033[19~", 0, 0}, + { XK_F8, /* F20 */ ShiftMask, "\033[19;2~", 0, 0}, + { XK_F8, /* F32 */ ControlMask, "\033[19;5~", 0, 0}, + { XK_F8, /* F44 */ Mod4Mask, "\033[19;6~", 0, 0}, + { XK_F8, /* F56 */ Mod1Mask, "\033[19;3~", 0, 0}, + { XK_F9, XK_NO_MOD, "\033[20~", 0, 0}, + { XK_F9, /* F21 */ ShiftMask, "\033[20;2~", 0, 0}, + { XK_F9, /* F33 */ ControlMask, "\033[20;5~", 0, 0}, + { XK_F9, /* F45 */ Mod4Mask, "\033[20;6~", 0, 0}, + { XK_F9, /* F57 */ Mod1Mask, "\033[20;3~", 0, 0}, + { XK_F10, XK_NO_MOD, "\033[21~", 0, 0}, + { XK_F10, /* F22 */ ShiftMask, "\033[21;2~", 0, 0}, + { XK_F10, /* F34 */ ControlMask, "\033[21;5~", 0, 0}, + { XK_F10, /* F46 */ Mod4Mask, "\033[21;6~", 0, 0}, + { XK_F10, /* F58 */ Mod1Mask, "\033[21;3~", 0, 0}, + { XK_F11, XK_NO_MOD, "\033[23~", 0, 0}, + { XK_F11, /* F23 */ ShiftMask, "\033[23;2~", 0, 0}, + { XK_F11, /* F35 */ ControlMask, "\033[23;5~", 0, 0}, + { XK_F11, /* F47 */ Mod4Mask, "\033[23;6~", 0, 0}, + { XK_F11, /* F59 */ Mod1Mask, "\033[23;3~", 0, 0}, + { XK_F12, XK_NO_MOD, "\033[24~", 0, 0}, + { XK_F12, /* F24 */ ShiftMask, "\033[24;2~", 0, 0}, + { XK_F12, /* F36 */ ControlMask, "\033[24;5~", 0, 0}, + { XK_F12, /* F48 */ Mod4Mask, "\033[24;6~", 0, 0}, + { XK_F12, /* F60 */ Mod1Mask, "\033[24;3~", 0, 0}, + { XK_F13, XK_NO_MOD, "\033[1;2P", 0, 0}, + { XK_F14, XK_NO_MOD, "\033[1;2Q", 0, 0}, + { XK_F15, XK_NO_MOD, "\033[1;2R", 0, 0}, + { XK_F16, XK_NO_MOD, "\033[1;2S", 0, 0}, + { XK_F17, XK_NO_MOD, "\033[15;2~", 0, 0}, + { XK_F18, XK_NO_MOD, "\033[17;2~", 0, 0}, + { XK_F19, XK_NO_MOD, "\033[18;2~", 0, 0}, + { XK_F20, XK_NO_MOD, "\033[19;2~", 0, 0}, + { XK_F21, XK_NO_MOD, "\033[20;2~", 0, 0}, + { XK_F22, XK_NO_MOD, "\033[21;2~", 0, 0}, + { XK_F23, XK_NO_MOD, "\033[23;2~", 0, 0}, + { XK_F24, XK_NO_MOD, "\033[24;2~", 0, 0}, + { XK_F25, XK_NO_MOD, "\033[1;5P", 0, 0}, + { XK_F26, XK_NO_MOD, "\033[1;5Q", 0, 0}, + { XK_F27, XK_NO_MOD, "\033[1;5R", 0, 0}, + { XK_F28, XK_NO_MOD, "\033[1;5S", 0, 0}, + { XK_F29, XK_NO_MOD, "\033[15;5~", 0, 0}, + { XK_F30, XK_NO_MOD, "\033[17;5~", 0, 0}, + { XK_F31, XK_NO_MOD, "\033[18;5~", 0, 0}, + { XK_F32, XK_NO_MOD, "\033[19;5~", 0, 0}, + { XK_F33, XK_NO_MOD, "\033[20;5~", 0, 0}, + { XK_F34, XK_NO_MOD, "\033[21;5~", 0, 0}, + { XK_F35, XK_NO_MOD, "\033[23;5~", 0, 0}, +}; + +/* + * Selection types' masks. + * Use the same masks as usual. + * Button1Mask is always unset, to make masks match between ButtonPress. + * ButtonRelease and MotionNotify. + * If no match is found, regular selection is used. + */ +static uint selmasks[] = { + [SEL_RECTANGULAR] = Mod1Mask, +}; + +/* + * Printable characters in ASCII, used to estimate the advance width + * of single wide characters. + */ +static char ascii_printable[] = + " !\"#$%&'()*+,-./0123456789:;<=>?" + "@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_" + "`abcdefghijklmnopqrstuvwxyz{|}~"; diff --git a/config.mk b/config.mk index 1e306f8..3e13e53 100644 --- a/config.mk +++ b/config.mk @@ -15,10 +15,12 @@ PKG_CONFIG = pkg-config # includes and libs INCS = -I$(X11INC) \ `$(PKG_CONFIG) --cflags fontconfig` \ - `$(PKG_CONFIG) --cflags freetype2` + `$(PKG_CONFIG) --cflags freetype2` \ + `$(PKG_CONFIG) --cflags harfbuzz` LIBS = -L$(X11LIB) -lm -lrt -lX11 -lutil -lXft \ `$(PKG_CONFIG) --libs fontconfig` \ - `$(PKG_CONFIG) --libs freetype2` + `$(PKG_CONFIG) --libs freetype2` \ + `$(PKG_CONFIG) --libs harfbuzz` # flags STCPPFLAGS = -DVERSION=\"$(VERSION)\" -D_XOPEN_SOURCE=600 diff --git a/hb.c b/hb.c new file mode 100644 index 0000000..b42f357 --- /dev/null +++ b/hb.c @@ -0,0 +1,124 @@ +#include +#include +#include +#include +#include +#include +#include + +#include "st.h" +#include "hb.h" + +#define FEATURE(c1,c2,c3,c4) { .tag = HB_TAG(c1,c2,c3,c4), .value = 1, .start = HB_FEATURE_GLOBAL_START, .end = HB_FEATURE_GLOBAL_END } +#define BUFFER_STEP 256 + +hb_font_t *hbfindfont(XftFont *match); + +typedef struct { + XftFont *match; + hb_font_t *font; +} HbFontMatch; + +typedef struct { + size_t capacity; + HbFontMatch *fonts; +} HbFontCache; + +static HbFontCache hbfontcache = { 0, NULL }; + +typedef struct { + size_t capacity; + Rune *runes; +} RuneBuffer; + +static RuneBuffer hbrunebuffer = { 0, NULL }; + +/* + * Poplulate the array with a list of font features, wrapped in FEATURE macro, + * e. g. + * FEATURE('c', 'a', 'l', 't'), FEATURE('d', 'l', 'i', 'g') + */ +hb_feature_t features[] = { }; + +void +hbunloadfonts() +{ + for (int i = 0; i < hbfontcache.capacity; i++) { + hb_font_destroy(hbfontcache.fonts[i].font); + XftUnlockFace(hbfontcache.fonts[i].match); + } + + if (hbfontcache.fonts != NULL) { + free(hbfontcache.fonts); + hbfontcache.fonts = NULL; + } + hbfontcache.capacity = 0; +} + +hb_font_t * +hbfindfont(XftFont *match) +{ + for (int i = 0; i < hbfontcache.capacity; i++) { + if (hbfontcache.fonts[i].match == match) + return hbfontcache.fonts[i].font; + } + + /* Font not found in cache, caching it now. */ + hbfontcache.fonts = realloc(hbfontcache.fonts, sizeof(HbFontMatch) * (hbfontcache.capacity + 1)); + FT_Face face = XftLockFace(match); + hb_font_t *font = hb_ft_font_create(face, NULL); + if (font == NULL) + die("Failed to load Harfbuzz font."); + + hbfontcache.fonts[hbfontcache.capacity].match = match; + hbfontcache.fonts[hbfontcache.capacity].font = font; + hbfontcache.capacity += 1; + + return font; +} + +void hbtransform(HbTransformData *data, XftFont *xfont, const Glyph *glyphs, int start, int length) { + ushort mode = USHRT_MAX; + unsigned int glyph_count; + int rune_idx, glyph_idx, end = start + length; + + hb_font_t *font = hbfindfont(xfont); + if (font == NULL) + return; + + hb_buffer_t *buffer = hb_buffer_create(); + hb_buffer_set_direction(buffer, HB_DIRECTION_LTR); + + /* Resize the buffer if required length is larger. */ + if (hbrunebuffer.capacity < length) { + hbrunebuffer.capacity = (length / BUFFER_STEP + 1) * BUFFER_STEP; + hbrunebuffer.runes = realloc(hbrunebuffer.runes, hbrunebuffer.capacity * sizeof(Rune)); + } + + /* Fill buffer with codepoints. */ + for (rune_idx = 0, glyph_idx = start; glyph_idx < end; glyph_idx++, rune_idx++) { + hbrunebuffer.runes[rune_idx] = glyphs[glyph_idx].u; + mode = glyphs[glyph_idx].mode; + if (mode & ATTR_WDUMMY) + hbrunebuffer.runes[rune_idx] = 0x0020; + } + hb_buffer_add_codepoints(buffer, hbrunebuffer.runes, length, 0, length); + + /* Shape the segment. */ + hb_shape(font, buffer, features, sizeof(features)/sizeof(hb_feature_t)); + + /* Get new glyph info. */ + hb_glyph_info_t *info = hb_buffer_get_glyph_infos(buffer, &glyph_count); + hb_glyph_position_t *pos = hb_buffer_get_glyph_positions(buffer, &glyph_count); + + /* Fill the output. */ + data->buffer = buffer; + data->glyphs = info; + data->positions = pos; + data->count = glyph_count; +} + +void hbcleanup(HbTransformData *data) { + hb_buffer_destroy(data->buffer); + memset(data, 0, sizeof(HbTransformData)); +} diff --git a/hb.h b/hb.h new file mode 100644 index 0000000..88de9bd --- /dev/null +++ b/hb.h @@ -0,0 +1,14 @@ +#include +#include +#include + +typedef struct { + hb_buffer_t *buffer; + hb_glyph_info_t *glyphs; + hb_glyph_position_t *positions; + unsigned int count; +} HbTransformData; + +void hbunloadfonts(); +void hbtransform(HbTransformData *, XftFont *, const Glyph *, int, int); +void hbcleanup(HbTransformData *); diff --git a/patches/st-boxdraw_v2-0.8.5.diff b/patches/st-boxdraw_v2-0.8.5.diff new file mode 100644 index 0000000..1ba0e46 --- /dev/null +++ b/patches/st-boxdraw_v2-0.8.5.diff @@ -0,0 +1,583 @@ +From 46a1124957b8de5e7f827656b64bfc3baeaa097f Mon Sep 17 00:00:00 2001 +From: wael <40663@protonmail.com> +Date: Mon, 11 Apr 2022 17:04:30 +0300 +Subject: [PATCH] [st][patch][boxdraw] update to 0.8.5 + +--- + Makefile | 3 +- + boxdraw.c | 194 ++++++++++++++++++++++++++++++++++++++++++++ + boxdraw_data.h | 214 +++++++++++++++++++++++++++++++++++++++++++++++++ + config.def.h | 12 +++ + st.c | 3 + + st.h | 10 +++ + x.c | 21 +++-- + 7 files changed, 451 insertions(+), 6 deletions(-) + create mode 100644 boxdraw.c + create mode 100644 boxdraw_data.h + +diff --git a/Makefile b/Makefile +index 470ac86..6dfa212 100644 +--- a/Makefile ++++ b/Makefile +@@ -4,7 +4,7 @@ + + include config.mk + +-SRC = st.c x.c ++SRC = st.c x.c boxdraw.c + OBJ = $(SRC:.c=.o) + + all: options st +@@ -23,6 +23,7 @@ config.h: + + st.o: config.h st.h win.h + x.o: arg.h config.h st.h win.h ++boxdraw.o: config.h st.h boxdraw_data.h + + $(OBJ): config.h config.mk + +diff --git a/boxdraw.c b/boxdraw.c +new file mode 100644 +index 0000000..28a92d0 +--- /dev/null ++++ b/boxdraw.c +@@ -0,0 +1,194 @@ ++/* ++ * Copyright 2018 Avi Halachmi (:avih) avihpit@yahoo.com https://github.com/avih ++ * MIT/X Consortium License ++ */ ++ ++#include ++#include "st.h" ++#include "boxdraw_data.h" ++ ++/* Rounded non-negative integers division of n / d */ ++#define DIV(n, d) (((n) + (d) / 2) / (d)) ++ ++static Display *xdpy; ++static Colormap xcmap; ++static XftDraw *xd; ++static Visual *xvis; ++ ++static void drawbox(int, int, int, int, XftColor *, XftColor *, ushort); ++static void drawboxlines(int, int, int, int, XftColor *, ushort); ++ ++/* public API */ ++ ++void ++boxdraw_xinit(Display *dpy, Colormap cmap, XftDraw *draw, Visual *vis) ++{ ++ xdpy = dpy; xcmap = cmap; xd = draw, xvis = vis; ++} ++ ++int ++isboxdraw(Rune u) ++{ ++ Rune block = u & ~0xff; ++ return (boxdraw && block == 0x2500 && boxdata[(uint8_t)u]) || ++ (boxdraw_braille && block == 0x2800); ++} ++ ++/* the "index" is actually the entire shape data encoded as ushort */ ++ushort ++boxdrawindex(const Glyph *g) ++{ ++ if (boxdraw_braille && (g->u & ~0xff) == 0x2800) ++ return BRL | (uint8_t)g->u; ++ if (boxdraw_bold && (g->mode & ATTR_BOLD)) ++ return BDB | boxdata[(uint8_t)g->u]; ++ return boxdata[(uint8_t)g->u]; ++} ++ ++void ++drawboxes(int x, int y, int cw, int ch, XftColor *fg, XftColor *bg, ++ const XftGlyphFontSpec *specs, int len) ++{ ++ for ( ; len-- > 0; x += cw, specs++) ++ drawbox(x, y, cw, ch, fg, bg, (ushort)specs->glyph); ++} ++ ++/* implementation */ ++ ++void ++drawbox(int x, int y, int w, int h, XftColor *fg, XftColor *bg, ushort bd) ++{ ++ ushort cat = bd & ~(BDB | 0xff); /* mask out bold and data */ ++ if (bd & (BDL | BDA)) { ++ /* lines (light/double/heavy/arcs) */ ++ drawboxlines(x, y, w, h, fg, bd); ++ ++ } else if (cat == BBD) { ++ /* lower (8-X)/8 block */ ++ int d = DIV((uint8_t)bd * h, 8); ++ XftDrawRect(xd, fg, x, y + d, w, h - d); ++ ++ } else if (cat == BBU) { ++ /* upper X/8 block */ ++ XftDrawRect(xd, fg, x, y, w, DIV((uint8_t)bd * h, 8)); ++ ++ } else if (cat == BBL) { ++ /* left X/8 block */ ++ XftDrawRect(xd, fg, x, y, DIV((uint8_t)bd * w, 8), h); ++ ++ } else if (cat == BBR) { ++ /* right (8-X)/8 block */ ++ int d = DIV((uint8_t)bd * w, 8); ++ XftDrawRect(xd, fg, x + d, y, w - d, h); ++ ++ } else if (cat == BBQ) { ++ /* Quadrants */ ++ int w2 = DIV(w, 2), h2 = DIV(h, 2); ++ if (bd & TL) ++ XftDrawRect(xd, fg, x, y, w2, h2); ++ if (bd & TR) ++ XftDrawRect(xd, fg, x + w2, y, w - w2, h2); ++ if (bd & BL) ++ XftDrawRect(xd, fg, x, y + h2, w2, h - h2); ++ if (bd & BR) ++ XftDrawRect(xd, fg, x + w2, y + h2, w - w2, h - h2); ++ ++ } else if (bd & BBS) { ++ /* Shades - data is 1/2/3 for 25%/50%/75% alpha, respectively */ ++ int d = (uint8_t)bd; ++ XftColor xfc; ++ XRenderColor xrc = { .alpha = 0xffff }; ++ ++ xrc.red = DIV(fg->color.red * d + bg->color.red * (4 - d), 4); ++ xrc.green = DIV(fg->color.green * d + bg->color.green * (4 - d), 4); ++ xrc.blue = DIV(fg->color.blue * d + bg->color.blue * (4 - d), 4); ++ ++ XftColorAllocValue(xdpy, xvis, xcmap, &xrc, &xfc); ++ XftDrawRect(xd, &xfc, x, y, w, h); ++ XftColorFree(xdpy, xvis, xcmap, &xfc); ++ ++ } else if (cat == BRL) { ++ /* braille, each data bit corresponds to one dot at 2x4 grid */ ++ int w1 = DIV(w, 2); ++ int h1 = DIV(h, 4), h2 = DIV(h, 2), h3 = DIV(3 * h, 4); ++ ++ if (bd & 1) XftDrawRect(xd, fg, x, y, w1, h1); ++ if (bd & 2) XftDrawRect(xd, fg, x, y + h1, w1, h2 - h1); ++ if (bd & 4) XftDrawRect(xd, fg, x, y + h2, w1, h3 - h2); ++ if (bd & 8) XftDrawRect(xd, fg, x + w1, y, w - w1, h1); ++ if (bd & 16) XftDrawRect(xd, fg, x + w1, y + h1, w - w1, h2 - h1); ++ if (bd & 32) XftDrawRect(xd, fg, x + w1, y + h2, w - w1, h3 - h2); ++ if (bd & 64) XftDrawRect(xd, fg, x, y + h3, w1, h - h3); ++ if (bd & 128) XftDrawRect(xd, fg, x + w1, y + h3, w - w1, h - h3); ++ ++ } ++} ++ ++void ++drawboxlines(int x, int y, int w, int h, XftColor *fg, ushort bd) ++{ ++ /* s: stem thickness. width/8 roughly matches underscore thickness. */ ++ /* We draw bold as 1.5 * normal-stem and at least 1px thicker. */ ++ /* doubles draw at least 3px, even when w or h < 3. bold needs 6px. */ ++ int mwh = MIN(w, h); ++ int base_s = MAX(1, DIV(mwh, 8)); ++ int bold = (bd & BDB) && mwh >= 6; /* possibly ignore boldness */ ++ int s = bold ? MAX(base_s + 1, DIV(3 * base_s, 2)) : base_s; ++ int w2 = DIV(w - s, 2), h2 = DIV(h - s, 2); ++ /* the s-by-s square (x + w2, y + h2, s, s) is the center texel. */ ++ /* The base length (per direction till edge) includes this square. */ ++ ++ int light = bd & (LL | LU | LR | LD); ++ int double_ = bd & (DL | DU | DR | DD); ++ ++ if (light) { ++ /* d: additional (negative) length to not-draw the center */ ++ /* texel - at arcs and avoid drawing inside (some) doubles */ ++ int arc = bd & BDA; ++ int multi_light = light & (light - 1); ++ int multi_double = double_ & (double_ - 1); ++ /* light crosses double only at DH+LV, DV+LH (ref. shapes) */ ++ int d = arc || (multi_double && !multi_light) ? -s : 0; ++ ++ if (bd & LL) ++ XftDrawRect(xd, fg, x, y + h2, w2 + s + d, s); ++ if (bd & LU) ++ XftDrawRect(xd, fg, x + w2, y, s, h2 + s + d); ++ if (bd & LR) ++ XftDrawRect(xd, fg, x + w2 - d, y + h2, w - w2 + d, s); ++ if (bd & LD) ++ XftDrawRect(xd, fg, x + w2, y + h2 - d, s, h - h2 + d); ++ } ++ ++ /* double lines - also align with light to form heavy when combined */ ++ if (double_) { ++ /* ++ * going clockwise, for each double-ray: p is additional length ++ * to the single-ray nearer to the previous direction, and n to ++ * the next. p and n adjust from the base length to lengths ++ * which consider other doubles - shorter to avoid intersections ++ * (p, n), or longer to draw the far-corner texel (n). ++ */ ++ int dl = bd & DL, du = bd & DU, dr = bd & DR, dd = bd & DD; ++ if (dl) { ++ int p = dd ? -s : 0, n = du ? -s : dd ? s : 0; ++ XftDrawRect(xd, fg, x, y + h2 + s, w2 + s + p, s); ++ XftDrawRect(xd, fg, x, y + h2 - s, w2 + s + n, s); ++ } ++ if (du) { ++ int p = dl ? -s : 0, n = dr ? -s : dl ? s : 0; ++ XftDrawRect(xd, fg, x + w2 - s, y, s, h2 + s + p); ++ XftDrawRect(xd, fg, x + w2 + s, y, s, h2 + s + n); ++ } ++ if (dr) { ++ int p = du ? -s : 0, n = dd ? -s : du ? s : 0; ++ XftDrawRect(xd, fg, x + w2 - p, y + h2 - s, w - w2 + p, s); ++ XftDrawRect(xd, fg, x + w2 - n, y + h2 + s, w - w2 + n, s); ++ } ++ if (dd) { ++ int p = dr ? -s : 0, n = dl ? -s : dr ? s : 0; ++ XftDrawRect(xd, fg, x + w2 + s, y + h2 - p, s, h - h2 + p); ++ XftDrawRect(xd, fg, x + w2 - s, y + h2 - n, s, h - h2 + n); ++ } ++ } ++} +diff --git a/boxdraw_data.h b/boxdraw_data.h +new file mode 100644 +index 0000000..7890500 +--- /dev/null ++++ b/boxdraw_data.h +@@ -0,0 +1,214 @@ ++/* ++ * Copyright 2018 Avi Halachmi (:avih) avihpit@yahoo.com https://github.com/avih ++ * MIT/X Consortium License ++ */ ++ ++/* ++ * U+25XX codepoints data ++ * ++ * References: ++ * http://www.unicode.org/charts/PDF/U2500.pdf ++ * http://www.unicode.org/charts/PDF/U2580.pdf ++ * ++ * Test page: ++ * https://github.com/GNOME/vte/blob/master/doc/boxes.txt ++ */ ++ ++/* Each shape is encoded as 16-bits. Higher bits are category, lower are data */ ++/* Categories (mutually exclusive except BDB): */ ++/* For convenience, BDL/BDA/BBS/BDB are 1 bit each, the rest are enums */ ++#define BDL (1<<8) /* Box Draw Lines (light/double/heavy) */ ++#define BDA (1<<9) /* Box Draw Arc (light) */ ++ ++#define BBD (1<<10) /* Box Block Down (lower) X/8 */ ++#define BBL (2<<10) /* Box Block Left X/8 */ ++#define BBU (3<<10) /* Box Block Upper X/8 */ ++#define BBR (4<<10) /* Box Block Right X/8 */ ++#define BBQ (5<<10) /* Box Block Quadrants */ ++#define BRL (6<<10) /* Box Braille (data is lower byte of U28XX) */ ++ ++#define BBS (1<<14) /* Box Block Shades */ ++#define BDB (1<<15) /* Box Draw is Bold */ ++ ++/* (BDL/BDA) Light/Double/Heavy x Left/Up/Right/Down/Horizontal/Vertical */ ++/* Heavy is light+double (literally drawing light+double align to form heavy) */ ++#define LL (1<<0) ++#define LU (1<<1) ++#define LR (1<<2) ++#define LD (1<<3) ++#define LH (LL+LR) ++#define LV (LU+LD) ++ ++#define DL (1<<4) ++#define DU (1<<5) ++#define DR (1<<6) ++#define DD (1<<7) ++#define DH (DL+DR) ++#define DV (DU+DD) ++ ++#define HL (LL+DL) ++#define HU (LU+DU) ++#define HR (LR+DR) ++#define HD (LD+DD) ++#define HH (HL+HR) ++#define HV (HU+HD) ++ ++/* (BBQ) Quadrants Top/Bottom x Left/Right */ ++#define TL (1<<0) ++#define TR (1<<1) ++#define BL (1<<2) ++#define BR (1<<3) ++ ++/* Data for U+2500 - U+259F except dashes/diagonals */ ++static const unsigned short boxdata[256] = { ++ /* light lines */ ++ [0x00] = BDL + LH, /* light horizontal */ ++ [0x02] = BDL + LV, /* light vertical */ ++ [0x0c] = BDL + LD + LR, /* light down and right */ ++ [0x10] = BDL + LD + LL, /* light down and left */ ++ [0x14] = BDL + LU + LR, /* light up and right */ ++ [0x18] = BDL + LU + LL, /* light up and left */ ++ [0x1c] = BDL + LV + LR, /* light vertical and right */ ++ [0x24] = BDL + LV + LL, /* light vertical and left */ ++ [0x2c] = BDL + LH + LD, /* light horizontal and down */ ++ [0x34] = BDL + LH + LU, /* light horizontal and up */ ++ [0x3c] = BDL + LV + LH, /* light vertical and horizontal */ ++ [0x74] = BDL + LL, /* light left */ ++ [0x75] = BDL + LU, /* light up */ ++ [0x76] = BDL + LR, /* light right */ ++ [0x77] = BDL + LD, /* light down */ ++ ++ /* heavy [+light] lines */ ++ [0x01] = BDL + HH, ++ [0x03] = BDL + HV, ++ [0x0d] = BDL + HR + LD, ++ [0x0e] = BDL + HD + LR, ++ [0x0f] = BDL + HD + HR, ++ [0x11] = BDL + HL + LD, ++ [0x12] = BDL + HD + LL, ++ [0x13] = BDL + HD + HL, ++ [0x15] = BDL + HR + LU, ++ [0x16] = BDL + HU + LR, ++ [0x17] = BDL + HU + HR, ++ [0x19] = BDL + HL + LU, ++ [0x1a] = BDL + HU + LL, ++ [0x1b] = BDL + HU + HL, ++ [0x1d] = BDL + HR + LV, ++ [0x1e] = BDL + HU + LD + LR, ++ [0x1f] = BDL + HD + LR + LU, ++ [0x20] = BDL + HV + LR, ++ [0x21] = BDL + HU + HR + LD, ++ [0x22] = BDL + HD + HR + LU, ++ [0x23] = BDL + HV + HR, ++ [0x25] = BDL + HL + LV, ++ [0x26] = BDL + HU + LD + LL, ++ [0x27] = BDL + HD + LU + LL, ++ [0x28] = BDL + HV + LL, ++ [0x29] = BDL + HU + HL + LD, ++ [0x2a] = BDL + HD + HL + LU, ++ [0x2b] = BDL + HV + HL, ++ [0x2d] = BDL + HL + LD + LR, ++ [0x2e] = BDL + HR + LL + LD, ++ [0x2f] = BDL + HH + LD, ++ [0x30] = BDL + HD + LH, ++ [0x31] = BDL + HD + HL + LR, ++ [0x32] = BDL + HR + HD + LL, ++ [0x33] = BDL + HH + HD, ++ [0x35] = BDL + HL + LU + LR, ++ [0x36] = BDL + HR + LU + LL, ++ [0x37] = BDL + HH + LU, ++ [0x38] = BDL + HU + LH, ++ [0x39] = BDL + HU + HL + LR, ++ [0x3a] = BDL + HU + HR + LL, ++ [0x3b] = BDL + HH + HU, ++ [0x3d] = BDL + HL + LV + LR, ++ [0x3e] = BDL + HR + LV + LL, ++ [0x3f] = BDL + HH + LV, ++ [0x40] = BDL + HU + LH + LD, ++ [0x41] = BDL + HD + LH + LU, ++ [0x42] = BDL + HV + LH, ++ [0x43] = BDL + HU + HL + LD + LR, ++ [0x44] = BDL + HU + HR + LD + LL, ++ [0x45] = BDL + HD + HL + LU + LR, ++ [0x46] = BDL + HD + HR + LU + LL, ++ [0x47] = BDL + HH + HU + LD, ++ [0x48] = BDL + HH + HD + LU, ++ [0x49] = BDL + HV + HL + LR, ++ [0x4a] = BDL + HV + HR + LL, ++ [0x4b] = BDL + HV + HH, ++ [0x78] = BDL + HL, ++ [0x79] = BDL + HU, ++ [0x7a] = BDL + HR, ++ [0x7b] = BDL + HD, ++ [0x7c] = BDL + HR + LL, ++ [0x7d] = BDL + HD + LU, ++ [0x7e] = BDL + HL + LR, ++ [0x7f] = BDL + HU + LD, ++ ++ /* double [+light] lines */ ++ [0x50] = BDL + DH, ++ [0x51] = BDL + DV, ++ [0x52] = BDL + DR + LD, ++ [0x53] = BDL + DD + LR, ++ [0x54] = BDL + DR + DD, ++ [0x55] = BDL + DL + LD, ++ [0x56] = BDL + DD + LL, ++ [0x57] = BDL + DL + DD, ++ [0x58] = BDL + DR + LU, ++ [0x59] = BDL + DU + LR, ++ [0x5a] = BDL + DU + DR, ++ [0x5b] = BDL + DL + LU, ++ [0x5c] = BDL + DU + LL, ++ [0x5d] = BDL + DL + DU, ++ [0x5e] = BDL + DR + LV, ++ [0x5f] = BDL + DV + LR, ++ [0x60] = BDL + DV + DR, ++ [0x61] = BDL + DL + LV, ++ [0x62] = BDL + DV + LL, ++ [0x63] = BDL + DV + DL, ++ [0x64] = BDL + DH + LD, ++ [0x65] = BDL + DD + LH, ++ [0x66] = BDL + DD + DH, ++ [0x67] = BDL + DH + LU, ++ [0x68] = BDL + DU + LH, ++ [0x69] = BDL + DH + DU, ++ [0x6a] = BDL + DH + LV, ++ [0x6b] = BDL + DV + LH, ++ [0x6c] = BDL + DH + DV, ++ ++ /* (light) arcs */ ++ [0x6d] = BDA + LD + LR, ++ [0x6e] = BDA + LD + LL, ++ [0x6f] = BDA + LU + LL, ++ [0x70] = BDA + LU + LR, ++ ++ /* Lower (Down) X/8 block (data is 8 - X) */ ++ [0x81] = BBD + 7, [0x82] = BBD + 6, [0x83] = BBD + 5, [0x84] = BBD + 4, ++ [0x85] = BBD + 3, [0x86] = BBD + 2, [0x87] = BBD + 1, [0x88] = BBD + 0, ++ ++ /* Left X/8 block (data is X) */ ++ [0x89] = BBL + 7, [0x8a] = BBL + 6, [0x8b] = BBL + 5, [0x8c] = BBL + 4, ++ [0x8d] = BBL + 3, [0x8e] = BBL + 2, [0x8f] = BBL + 1, ++ ++ /* upper 1/2 (4/8), 1/8 block (X), right 1/2, 1/8 block (8-X) */ ++ [0x80] = BBU + 4, [0x94] = BBU + 1, ++ [0x90] = BBR + 4, [0x95] = BBR + 7, ++ ++ /* Quadrants */ ++ [0x96] = BBQ + BL, ++ [0x97] = BBQ + BR, ++ [0x98] = BBQ + TL, ++ [0x99] = BBQ + TL + BL + BR, ++ [0x9a] = BBQ + TL + BR, ++ [0x9b] = BBQ + TL + TR + BL, ++ [0x9c] = BBQ + TL + TR + BR, ++ [0x9d] = BBQ + TR, ++ [0x9e] = BBQ + BL + TR, ++ [0x9f] = BBQ + BL + TR + BR, ++ ++ /* Shades, data is an alpha value in 25% units (1/4, 1/2, 3/4) */ ++ [0x91] = BBS + 1, [0x92] = BBS + 2, [0x93] = BBS + 3, ++ ++ /* U+2504 - U+250B, U+254C - U+254F: unsupported (dashes) */ ++ /* U+2571 - U+2573: unsupported (diagonals) */ ++}; +diff --git a/config.def.h b/config.def.h +index 91ab8ca..7bb3ff7 100644 +--- a/config.def.h ++++ b/config.def.h +@@ -67,6 +67,18 @@ static unsigned int blinktimeout = 800; + */ + static unsigned int cursorthickness = 2; + ++/* ++ * 1: render most of the lines/blocks characters without using the font for ++ * perfect alignment between cells (U2500 - U259F except dashes/diagonals). ++ * Bold affects lines thickness if boxdraw_bold is not 0. Italic is ignored. ++ * 0: disable (render all U25XX glyphs normally from the font). ++ */ ++const int boxdraw = 0; ++const int boxdraw_bold = 0; ++ ++/* braille (U28XX): 1: render as adjacent "pixels", 0: use font */ ++const int boxdraw_braille = 0; ++ + /* + * bell volume. It must be a value between -100 and 100. Use 0 for disabling + * it +diff --git a/st.c b/st.c +index f43cfd3..baa2bed 100644 +--- a/st.c ++++ b/st.c +@@ -1214,6 +1214,9 @@ tsetchar(Rune u, const Glyph *attr, int x, int y) + term.dirty[y] = 1; + term.line[y][x] = *attr; + term.line[y][x].u = u; ++ ++ if (isboxdraw(u)) ++ term.line[y][x].mode |= ATTR_BOXDRAW; + } + + void +diff --git a/st.h b/st.h +index 519b9bd..07a7c66 100644 +--- a/st.h ++++ b/st.h +@@ -33,6 +33,7 @@ enum glyph_attribute { + ATTR_WRAP = 1 << 8, + ATTR_WIDE = 1 << 9, + ATTR_WDUMMY = 1 << 10, ++ ATTR_BOXDRAW = 1 << 11, + ATTR_BOLD_FAINT = ATTR_BOLD | ATTR_FAINT, + }; + +@@ -113,6 +114,14 @@ char *xstrdup(const char *); + + int xgetcolor(int x, unsigned char *r, unsigned char *g, unsigned char *b); + ++int isboxdraw(Rune); ++ushort boxdrawindex(const Glyph *); ++#ifdef XFT_VERSION ++/* only exposed to x.c, otherwise we'll need Xft.h for the types */ ++void boxdraw_xinit(Display *, Colormap, XftDraw *, Visual *); ++void drawboxes(int, int, int, int, XftColor *, XftColor *, const XftGlyphFontSpec *, int); ++#endif ++ + /* config.h globals */ + extern char *utmp; + extern char *scroll; +@@ -126,3 +135,4 @@ extern unsigned int tabspaces; + extern unsigned int defaultfg; + extern unsigned int defaultbg; + extern unsigned int defaultcs; ++extern const int boxdraw, boxdraw_bold, boxdraw_braille; +diff --git a/x.c b/x.c +index 2a3bd38..bf6bbf9 100644 +--- a/x.c ++++ b/x.c +@@ -1237,6 +1237,8 @@ xinit(int cols, int rows) + xsel.xtarget = XInternAtom(xw.dpy, "UTF8_STRING", 0); + if (xsel.xtarget == None) + xsel.xtarget = XA_STRING; ++ ++ boxdraw_xinit(xw.dpy, xw.cmap, xw.draw, xw.vis); + } + + int +@@ -1283,8 +1285,13 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x + yp = winy + font->ascent; + } + +- /* Lookup character index with default font. */ +- glyphidx = XftCharIndex(xw.dpy, font->match, rune); ++ if (mode & ATTR_BOXDRAW) { ++ /* minor shoehorning: boxdraw uses only this ushort */ ++ glyphidx = boxdrawindex(&glyphs[i]); ++ } else { ++ /* Lookup character index with default font. */ ++ glyphidx = XftCharIndex(xw.dpy, font->match, rune); ++ } + if (glyphidx) { + specs[numspecs].font = font->match; + specs[numspecs].glyph = glyphidx; +@@ -1488,8 +1495,12 @@ xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, i + r.width = width; + XftDrawSetClipRectangles(xw.draw, winx, winy, &r, 1); + +- /* Render the glyphs. */ +- XftDrawGlyphFontSpec(xw.draw, fg, specs, len); ++ if (base.mode & ATTR_BOXDRAW) { ++ drawboxes(winx, winy, width / len, win.ch, fg, bg, specs, len); ++ } else { ++ /* Render the glyphs. */ ++ XftDrawGlyphFontSpec(xw.draw, fg, specs, len); ++ } + + /* Render underline and strikethrough. */ + if (base.mode & ATTR_UNDERLINE) { +@@ -1532,7 +1543,7 @@ xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og) + /* + * Select the right color for the right mode. + */ +- g.mode &= ATTR_BOLD|ATTR_ITALIC|ATTR_UNDERLINE|ATTR_STRUCK|ATTR_WIDE; ++ g.mode &= ATTR_BOLD|ATTR_ITALIC|ATTR_UNDERLINE|ATTR_STRUCK|ATTR_WIDE|ATTR_BOXDRAW; + + if (IS_SET(MODE_REVERSE)) { + g.mode |= ATTR_REVERSE; +-- +2.35.1 + diff --git a/patches/st-ligatures-boxdraw-20230105-0.9.diff b/patches/st-ligatures-boxdraw-20230105-0.9.diff new file mode 100644 index 0000000..20c78f9 --- /dev/null +++ b/patches/st-ligatures-boxdraw-20230105-0.9.diff @@ -0,0 +1,624 @@ +diff --git a/Makefile b/Makefile +index 6dfa212..adfa07a 100644 +--- a/Makefile ++++ b/Makefile +@@ -4,7 +4,7 @@ + + include config.mk + +-SRC = st.c x.c boxdraw.c ++SRC = st.c x.c boxdraw.c hb.c + OBJ = $(SRC:.c=.o) + + all: options st +@@ -22,8 +22,9 @@ config.h: + $(CC) $(STCFLAGS) -c $< + + st.o: config.h st.h win.h +-x.o: arg.h config.h st.h win.h ++x.o: arg.h config.h st.h win.h hb.h + boxdraw.o: config.h st.h boxdraw_data.h ++hb.o: st.h + + $(OBJ): config.h config.mk + +diff --git a/config.mk b/config.mk +index 1e306f8..3e13e53 100644 +--- a/config.mk ++++ b/config.mk +@@ -15,10 +15,12 @@ PKG_CONFIG = pkg-config + # includes and libs + INCS = -I$(X11INC) \ + `$(PKG_CONFIG) --cflags fontconfig` \ +- `$(PKG_CONFIG) --cflags freetype2` ++ `$(PKG_CONFIG) --cflags freetype2` \ ++ `$(PKG_CONFIG) --cflags harfbuzz` + LIBS = -L$(X11LIB) -lm -lrt -lX11 -lutil -lXft \ + `$(PKG_CONFIG) --libs fontconfig` \ +- `$(PKG_CONFIG) --libs freetype2` ++ `$(PKG_CONFIG) --libs freetype2` \ ++ `$(PKG_CONFIG) --libs harfbuzz` + + # flags + STCPPFLAGS = -DVERSION=\"$(VERSION)\" -D_XOPEN_SOURCE=600 +diff --git a/hb.c b/hb.c +new file mode 100644 +index 0000000..528c040 +--- /dev/null ++++ b/hb.c +@@ -0,0 +1,124 @@ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#include "st.h" ++#include "hb.h" ++ ++#define FEATURE(c1,c2,c3,c4) { .tag = HB_TAG(c1,c2,c3,c4), .value = 1, .start = HB_FEATURE_GLOBAL_START, .end = HB_FEATURE_GLOBAL_END } ++#define BUFFER_STEP 256 ++ ++hb_font_t *hbfindfont(XftFont *match); ++ ++typedef struct { ++ XftFont *match; ++ hb_font_t *font; ++} HbFontMatch; ++ ++typedef struct { ++ size_t capacity; ++ HbFontMatch *fonts; ++} HbFontCache; ++ ++static HbFontCache hbfontcache = { 0, NULL }; ++ ++typedef struct { ++ size_t capacity; ++ Rune *runes; ++} RuneBuffer; ++ ++static RuneBuffer hbrunebuffer = { 0, NULL }; ++ ++/* ++ * Poplulate the array with a list of font features, wrapped in FEATURE macro, ++ * e. g. ++ * FEATURE('c', 'a', 'l', 't'), FEATURE('d', 'l', 'i', 'g') ++ */ ++hb_feature_t features[] = { }; ++ ++void ++hbunloadfonts() ++{ ++ for (int i = 0; i < hbfontcache.capacity; i++) { ++ hb_font_destroy(hbfontcache.fonts[i].font); ++ XftUnlockFace(hbfontcache.fonts[i].match); ++ } ++ ++ if (hbfontcache.fonts != NULL) { ++ free(hbfontcache.fonts); ++ hbfontcache.fonts = NULL; ++ } ++ hbfontcache.capacity = 0; ++} ++ ++hb_font_t * ++hbfindfont(XftFont *match) ++{ ++ for (int i = 0; i < hbfontcache.capacity; i++) { ++ if (hbfontcache.fonts[i].match == match) ++ return hbfontcache.fonts[i].font; ++ } ++ ++ /* Font not found in cache, caching it now. */ ++ hbfontcache.fonts = realloc(hbfontcache.fonts, sizeof(HbFontMatch) * (hbfontcache.capacity + 1)); ++ FT_Face face = XftLockFace(match); ++ hb_font_t *font = hb_ft_font_create(face, NULL); ++ if (font == NULL) ++ die("Failed to load Harfbuzz font."); ++ ++ hbfontcache.fonts[hbfontcache.capacity].match = match; ++ hbfontcache.fonts[hbfontcache.capacity].font = font; ++ hbfontcache.capacity += 1; ++ ++ return font; ++} ++ ++void hbtransform(HbTransformData *data, XftFont *xfont, const Glyph *glyphs, int start, int length) { ++ ushort mode = USHRT_MAX; ++ unsigned int glyph_count; ++ int rune_idx, glyph_idx, end = start + length; ++ ++ hb_font_t *font = hbfindfont(xfont); ++ if (font == NULL) ++ return; ++ ++ hb_buffer_t *buffer = hb_buffer_create(); ++ hb_buffer_set_direction(buffer, HB_DIRECTION_LTR); ++ ++ /* Resize the buffer if required length is larger. */ ++ if (hbrunebuffer.capacity < length) { ++ hbrunebuffer.capacity = (length / BUFFER_STEP + 1) * BUFFER_STEP; ++ hbrunebuffer.runes = realloc(hbrunebuffer.runes, hbrunebuffer.capacity * sizeof(Rune)); ++ } ++ ++ /* Fill buffer with codepoints. */ ++ for (rune_idx = 0, glyph_idx = start; glyph_idx < end; glyph_idx++, rune_idx++) { ++ hbrunebuffer.runes[rune_idx] = glyphs[glyph_idx].u; ++ mode = glyphs[glyph_idx].mode; ++ if (mode & ATTR_WDUMMY) ++ hbrunebuffer.runes[rune_idx] = 0x0020; ++ } ++ hb_buffer_add_codepoints(buffer, hbrunebuffer.runes, length, 0, length); ++ ++ /* Shape the segment. */ ++ hb_shape(font, buffer, features, sizeof(features)/sizeof(hb_feature_t)); ++ ++ /* Get new glyph info. */ ++ hb_glyph_info_t *info = hb_buffer_get_glyph_infos(buffer, &glyph_count); ++ hb_glyph_position_t *pos = hb_buffer_get_glyph_positions(buffer, &glyph_count); ++ ++ /* Fill the output. */ ++ data->buffer = buffer; ++ data->glyphs = info; ++ data->positions = pos; ++ data->count = glyph_count; ++} ++ ++void hbcleanup(HbTransformData *data) { ++ hb_buffer_destroy(data->buffer); ++ memset(data, 0, sizeof(HbTransformData)); ++} +diff --git a/hb.h b/hb.h +new file mode 100644 +index 0000000..88de9bd +--- /dev/null ++++ b/hb.h +@@ -0,0 +1,14 @@ ++#include ++#include ++#include ++ ++typedef struct { ++ hb_buffer_t *buffer; ++ hb_glyph_info_t *glyphs; ++ hb_glyph_position_t *positions; ++ unsigned int count; ++} HbTransformData; ++ ++void hbunloadfonts(); ++void hbtransform(HbTransformData *, XftFont *, const Glyph *, int, int); ++void hbcleanup(HbTransformData *); +diff --git a/st.c b/st.c +index 41d5ace..1c2edd6 100644 +--- a/st.c ++++ b/st.c +@@ -2643,7 +2643,8 @@ draw(void) + + drawregion(0, 0, term.col, term.row); + xdrawcursor(cx, term.c.y, term.line[term.c.y][cx], +- term.ocx, term.ocy, term.line[term.ocy][term.ocx]); ++ term.ocx, term.ocy, term.line[term.ocy][term.ocx], ++ term.line[term.ocy], term.col); + term.ocx = cx; + term.ocy = term.c.y; + xfinishdraw(); +diff --git a/st.h b/st.h +index 808f5f7..ae41368 100644 +--- a/st.h ++++ b/st.h +@@ -11,7 +11,8 @@ + #define DIVCEIL(n, d) (((n) + ((d) - 1)) / (d)) + #define DEFAULT(a, b) (a) = (a) ? (a) : (b) + #define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x) +-#define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || \ ++#define ATTRCMP(a, b) (((a).mode & (~ATTR_WRAP)) != ((b).mode & (~ATTR_WRAP)) || \ ++ (a).fg != (b).fg || \ + (a).bg != (b).bg) + #define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + \ + (t1.tv_nsec-t2.tv_nsec)/1E6) +diff --git a/win.h b/win.h +index 6de960d..94679e4 100644 +--- a/win.h ++++ b/win.h +@@ -25,7 +25,7 @@ enum win_mode { + + void xbell(void); + void xclipcopy(void); +-void xdrawcursor(int, int, Glyph, int, int, Glyph); ++void xdrawcursor(int, int, Glyph, int, int, Glyph, Line, int); + void xdrawline(Line, int, int, int); + void xfinishdraw(void); + void xloadcols(void); +diff --git a/x.c b/x.c +index bf6bbf9..929a59a 100644 +--- a/x.c ++++ b/x.c +@@ -19,6 +19,7 @@ char *argv0; + #include "arg.h" + #include "st.h" + #include "win.h" ++#include "hb.h" + + /* types used in config.h */ + typedef struct { +@@ -141,6 +142,7 @@ typedef struct { + } DC; + + static inline ushort sixd_to_16bit(int); ++static void xresetfontsettings(ushort mode, Font **font, int *frcflags); + static int xmakeglyphfontspecs(XftGlyphFontSpec *, const Glyph *, int, int, int); + static void xdrawglyphfontspecs(const XftGlyphFontSpec *, Glyph, int, int, int); + static void xdrawglyph(Glyph, int, int); +@@ -757,7 +759,7 @@ xresize(int col, int row) + xclear(0, 0, win.w, win.h); + + /* resize to new width */ +- xw.specbuf = xrealloc(xw.specbuf, col * sizeof(GlyphFontSpec)); ++ xw.specbuf = xrealloc(xw.specbuf, col * sizeof(GlyphFontSpec) * 4); + } + + ushort +@@ -1062,6 +1064,9 @@ xunloadfont(Font *f) + void + xunloadfonts(void) + { ++ /* Clear Harfbuzz font cache. */ ++ hbunloadfonts(); ++ + /* Free the loaded fonts in the font cache. */ + while (frclen > 0) + XftFontClose(xw.dpy, frc[--frclen].font); +@@ -1185,7 +1190,7 @@ xinit(int cols, int rows) + XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, win.w, win.h); + + /* font spec buffer */ +- xw.specbuf = xmalloc(cols * sizeof(GlyphFontSpec)); ++ xw.specbuf = xmalloc(cols * sizeof(GlyphFontSpec) * 4); + + /* Xft rendering context */ + xw.draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap); +@@ -1241,6 +1246,22 @@ xinit(int cols, int rows) + boxdraw_xinit(xw.dpy, xw.cmap, xw.draw, xw.vis); + } + ++void ++xresetfontsettings(ushort mode, Font **font, int *frcflags) ++{ ++ *font = &dc.font; ++ 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; ++ } ++} ++ + int + xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x, int y) + { +@@ -1255,126 +1276,158 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x + FcPattern *fcpattern, *fontpattern; + FcFontSet *fcsets[] = { NULL }; + FcCharSet *fccharset; +- int i, f, numspecs = 0; ++ int i, f, length = 0, start = 0, numspecs = 0; ++ float cluster_xp = xp, cluster_yp = yp; ++ HbTransformData shaped = { 0 }; ++ ++ /* Initial values. */ ++ mode = prevmode = glyphs[0].mode; ++ xresetfontsettings(mode, &font, &frcflags); + + 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) ++ if (mode & ATTR_WDUMMY && i < (len - 1)) + 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; ++ if ( ++ prevmode != mode ++ || ATTRCMP(glyphs[start], glyphs[i]) ++ || selected(x + i, y) != selected(x + start, y) ++ || i == (len - 1) ++ ) { ++ /* Handle 1-character wide segments and end of line */ ++ length = i - start; ++ if (i == start) { ++ length = 1; ++ } else if (i == (len - 1)) { ++ length = (i - start + 1); + } +- yp = winy + font->ascent; +- } + +- if (mode & ATTR_BOXDRAW) { +- /* minor shoehorning: boxdraw uses only this ushort */ +- glyphidx = boxdrawindex(&glyphs[i]); +- } else { +- /* 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; ++ /* Shape the segment. */ ++ hbtransform(&shaped, font->match, glyphs, start, length); ++ runewidth = win.cw * ((glyphs[start].mode & ATTR_WIDE) ? 2.0f : 1.0f); ++ cluster_xp = xp; cluster_yp = yp; ++ for (int code_idx = 0; code_idx < shaped.count; code_idx++) { ++ int idx = shaped.glyphs[code_idx].cluster; ++ ++ if (glyphs[start + idx].mode & ATTR_WDUMMY) ++ continue; ++ ++ /* Advance the drawing cursor if we've moved to a new cluster */ ++ if (code_idx > 0 && idx != shaped.glyphs[code_idx - 1].cluster) { ++ xp += runewidth; ++ cluster_xp = xp; ++ cluster_yp = yp; ++ runewidth = win.cw * ((glyphs[start + idx].mode & ATTR_WIDE) ? 2.0f : 1.0f); ++ } ++ ++ if (glyphs[start + code_idx].mode & ATTR_BOXDRAW) { ++ /* minor shoehorning: boxdraw uses only this ushort */ ++ specs[numspecs].font = font->match; ++ specs[numspecs].glyph = boxdrawindex(&glyphs[start + code_idx]); ++ specs[numspecs].x = xp; ++ specs[numspecs].y = yp; ++ numspecs++; ++ } else if (shaped.glyphs[code_idx].codepoint != 0) { ++ /* If symbol is found, put it into the specs. */ ++ specs[numspecs].font = font->match; ++ specs[numspecs].glyph = shaped.glyphs[code_idx].codepoint; ++ specs[numspecs].x = cluster_xp + (short)(shaped.positions[code_idx].x_offset / 64.); ++ specs[numspecs].y = cluster_yp - (short)(shaped.positions[code_idx].y_offset / 64.); ++ cluster_xp += shaped.positions[code_idx].x_advance / 64.; ++ cluster_yp += shaped.positions[code_idx].y_advance / 64.; ++ numspecs++; ++ } else { ++ /* If it's not found, try to fetch it through the font cache. */ ++ rune = glyphs[start + idx].u; ++ 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; ++ numspecs++; ++ } + } +- } + +- /* 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; ++ /* Cleanup and get ready for next segment. */ ++ hbcleanup(&shaped); ++ start = i; + +- /* +- * 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)); ++ /* Determine font for glyph if different from previous glyph. */ ++ if (prevmode != mode) { ++ prevmode = mode; ++ xresetfontsettings(mode, &font, &frcflags); ++ yp = winy + font->ascent; + } +- +- 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++; + } + ++ hbcleanup(&shaped); + return numspecs; + } + +@@ -1528,14 +1581,17 @@ xdrawglyph(Glyph g, int x, int y) + } + + void +-xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og) ++xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og, Line line, int len) + { + Color drawcol; + + /* remove the old cursor */ + if (selected(ox, oy)) + og.mode ^= ATTR_REVERSE; +- xdrawglyph(og, ox, oy); ++ ++ /* Redraw the line where cursor was previously. ++ * It will restore the ligatures broken by the cursor. */ ++ xdrawline(line, 0, oy, len); + + if (IS_SET(MODE_HIDE)) + return; +@@ -1663,18 +1719,16 @@ xdrawline(Line line, int x1, int y1, int x2) + 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++) { ++ for (x = x1; x < x2; 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; ++ if ((i > 0) && ATTRCMP(base, new)) { ++ numspecs = xmakeglyphfontspecs(specs, &line[ox], x - ox, ox, y1); ++ xdrawglyphfontspecs(specs, base, numspecs, ox, y1); + i = 0; + } + if (i == 0) { +@@ -1683,8 +1737,10 @@ xdrawline(Line line, int x1, int y1, int x2) + } + i++; + } +- if (i > 0) +- xdrawglyphfontspecs(specs, base, i, ox, y1); ++ if (i > 0) { ++ numspecs = xmakeglyphfontspecs(specs, &line[ox], x2 - ox, ox, y1); ++ xdrawglyphfontspecs(specs, base, numspecs, ox, y1); ++ } + } + + void diff --git a/st.c b/st.c index 134e724..7154f00 100644 --- a/st.c +++ b/st.c @@ -1215,6 +1215,9 @@ tsetchar(Rune u, const Glyph *attr, int x, int y) term.dirty[y] = 1; term.line[y][x] = *attr; term.line[y][x].u = u; + + if (isboxdraw(u)) + term.line[y][x].mode |= ATTR_BOXDRAW; } void @@ -2652,7 +2655,8 @@ draw(void) drawregion(0, 0, term.col, term.row); xdrawcursor(cx, term.c.y, term.line[term.c.y][cx], - term.ocx, term.ocy, term.line[term.ocy][term.ocx]); + term.ocx, term.ocy, term.line[term.ocy][term.ocx], + term.line[term.ocy], term.col); term.ocx = cx; term.ocy = term.c.y; xfinishdraw(); diff --git a/st.h b/st.h index fd3b0d8..ae41368 100644 --- a/st.h +++ b/st.h @@ -11,7 +11,8 @@ #define DIVCEIL(n, d) (((n) + ((d) - 1)) / (d)) #define DEFAULT(a, b) (a) = (a) ? (a) : (b) #define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x) -#define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || \ +#define ATTRCMP(a, b) (((a).mode & (~ATTR_WRAP)) != ((b).mode & (~ATTR_WRAP)) || \ + (a).fg != (b).fg || \ (a).bg != (b).bg) #define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + \ (t1.tv_nsec-t2.tv_nsec)/1E6) @@ -33,6 +34,7 @@ enum glyph_attribute { ATTR_WRAP = 1 << 8, ATTR_WIDE = 1 << 9, ATTR_WDUMMY = 1 << 10, + ATTR_BOXDRAW = 1 << 11, ATTR_BOLD_FAINT = ATTR_BOLD | ATTR_FAINT, }; @@ -111,6 +113,14 @@ void *xmalloc(size_t); void *xrealloc(void *, size_t); char *xstrdup(const char *); +int isboxdraw(Rune); +ushort boxdrawindex(const Glyph *); +#ifdef XFT_VERSION +/* only exposed to x.c, otherwise we'll need Xft.h for the types */ +void boxdraw_xinit(Display *, Colormap, XftDraw *, Visual *); +void drawboxes(int, int, int, int, XftColor *, XftColor *, const XftGlyphFontSpec *, int); +#endif + /* config.h globals */ extern char *utmp; extern char *scroll; @@ -124,3 +134,4 @@ extern unsigned int tabspaces; extern unsigned int defaultfg; extern unsigned int defaultbg; extern unsigned int defaultcs; +extern const int boxdraw, boxdraw_bold, boxdraw_braille; diff --git a/win.h b/win.h index 6de960d..94679e4 100644 --- a/win.h +++ b/win.h @@ -25,7 +25,7 @@ enum win_mode { void xbell(void); void xclipcopy(void); -void xdrawcursor(int, int, Glyph, int, int, Glyph); +void xdrawcursor(int, int, Glyph, int, int, Glyph, Line, int); void xdrawline(Line, int, int, int); void xfinishdraw(void); void xloadcols(void); diff --git a/x.c b/x.c index aa09997..ddac0f1 100644 --- a/x.c +++ b/x.c @@ -19,6 +19,7 @@ char *argv0; #include "arg.h" #include "st.h" #include "win.h" +#include "hb.h" /* types used in config.h */ typedef struct { @@ -141,6 +142,7 @@ typedef struct { } DC; static inline ushort sixd_to_16bit(int); +static void xresetfontsettings(ushort mode, Font **font, int *frcflags); static int xmakeglyphfontspecs(XftGlyphFontSpec *, const Glyph *, int, int, int); static void xdrawglyphfontspecs(const XftGlyphFontSpec *, Glyph, int, int, int); static void xdrawglyph(Glyph, int, int); @@ -757,7 +759,7 @@ xresize(int col, int row) xclear(0, 0, win.w, win.h); /* resize to new width */ - xw.specbuf = xrealloc(xw.specbuf, col * sizeof(GlyphFontSpec)); + xw.specbuf = xrealloc(xw.specbuf, col * sizeof(GlyphFontSpec) * 4); } ushort @@ -1062,6 +1064,9 @@ xunloadfont(Font *f) void xunloadfonts(void) { + /* Clear Harfbuzz font cache. */ + hbunloadfonts(); + /* Free the loaded fonts in the font cache. */ while (frclen > 0) XftFontClose(xw.dpy, frc[--frclen].font); @@ -1185,7 +1190,7 @@ xinit(int cols, int rows) XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, win.w, win.h); /* font spec buffer */ - xw.specbuf = xmalloc(cols * sizeof(GlyphFontSpec)); + xw.specbuf = xmalloc(cols * sizeof(GlyphFontSpec) * 4); /* Xft rendering context */ xw.draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap); @@ -1237,6 +1242,24 @@ xinit(int cols, int rows) xsel.xtarget = XInternAtom(xw.dpy, "UTF8_STRING", 0); if (xsel.xtarget == None) xsel.xtarget = XA_STRING; + + boxdraw_xinit(xw.dpy, xw.cmap, xw.draw, xw.vis); +} + +void +xresetfontsettings(ushort mode, Font **font, int *frcflags) +{ + *font = &dc.font; + 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; + } } int @@ -1253,121 +1276,158 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x FcPattern *fcpattern, *fontpattern; FcFontSet *fcsets[] = { NULL }; FcCharSet *fccharset; - int i, f, numspecs = 0; + int i, f, length = 0, start = 0, numspecs = 0; + float cluster_xp = xp, cluster_yp = yp; + HbTransformData shaped = { 0 }; + + /* Initial values. */ + mode = prevmode = glyphs[0].mode; + xresetfontsettings(mode, &font, &frcflags); 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) + if (mode & ATTR_WDUMMY && i < (len - 1)) 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)); + if ( + prevmode != mode + || ATTRCMP(glyphs[start], glyphs[i]) + || selected(x + i, y) != selected(x + start, y) + || i == (len - 1) + ) { + /* Handle 1-character wide segments and end of line */ + length = i - start; + if (i == start) { + length = 1; + } else if (i == (len - 1)) { + length = (i - start + 1); } - 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; + /* Shape the segment. */ + hbtransform(&shaped, font->match, glyphs, start, length); + runewidth = win.cw * ((glyphs[start].mode & ATTR_WIDE) ? 2.0f : 1.0f); + cluster_xp = xp; cluster_yp = yp; + for (int code_idx = 0; code_idx < shaped.count; code_idx++) { + int idx = shaped.glyphs[code_idx].cluster; - glyphidx = XftCharIndex(xw.dpy, frc[frclen].font, rune); + if (glyphs[start + idx].mode & ATTR_WDUMMY) + continue; - f = frclen; - frclen++; + /* Advance the drawing cursor if we've moved to a new cluster */ + if (code_idx > 0 && idx != shaped.glyphs[code_idx - 1].cluster) { + xp += runewidth; + cluster_xp = xp; + cluster_yp = yp; + runewidth = win.cw * ((glyphs[start + idx].mode & ATTR_WIDE) ? 2.0f : 1.0f); + } - FcPatternDestroy(fcpattern); - FcCharSetDestroy(fccharset); + if (glyphs[start + code_idx].mode & ATTR_BOXDRAW) { + /* minor shoehorning: boxdraw uses only this ushort */ + specs[numspecs].font = font->match; + specs[numspecs].glyph = boxdrawindex(&glyphs[start + code_idx]); + specs[numspecs].x = xp; + specs[numspecs].y = yp; + numspecs++; + } else if (shaped.glyphs[code_idx].codepoint != 0) { + /* If symbol is found, put it into the specs. */ + specs[numspecs].font = font->match; + specs[numspecs].glyph = shaped.glyphs[code_idx].codepoint; + specs[numspecs].x = cluster_xp + (short)(shaped.positions[code_idx].x_offset / 64.); + specs[numspecs].y = cluster_yp - (short)(shaped.positions[code_idx].y_offset / 64.); + cluster_xp += shaped.positions[code_idx].x_advance / 64.; + cluster_yp += shaped.positions[code_idx].y_advance / 64.; + numspecs++; + } else { + /* If it's not found, try to fetch it through the font cache. */ + rune = glyphs[start + idx].u; + 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; + numspecs++; + } + } + + /* Cleanup and get ready for next segment. */ + hbcleanup(&shaped); + start = i; + + /* Determine font for glyph if different from previous glyph. */ + if (prevmode != mode) { + prevmode = mode; + xresetfontsettings(mode, &font, &frcflags); + yp = winy + font->ascent; + } } - - specs[numspecs].font = frc[f].font; - specs[numspecs].glyph = glyphidx; - specs[numspecs].x = (short)xp; - specs[numspecs].y = (short)yp; - xp += runewidth; - numspecs++; } + hbcleanup(&shaped); return numspecs; } @@ -1488,8 +1548,12 @@ xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, i r.width = width; XftDrawSetClipRectangles(xw.draw, winx, winy, &r, 1); - /* Render the glyphs. */ - XftDrawGlyphFontSpec(xw.draw, fg, specs, len); + if (base.mode & ATTR_BOXDRAW) { + drawboxes(winx, winy, width / len, win.ch, fg, bg, specs, len); + } else { + /* Render the glyphs. */ + XftDrawGlyphFontSpec(xw.draw, fg, specs, len); + } /* Render underline and strikethrough. */ if (base.mode & ATTR_UNDERLINE) { @@ -1517,14 +1581,17 @@ xdrawglyph(Glyph g, int x, int y) } void -xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og) +xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og, Line line, int len) { Color drawcol; /* remove the old cursor */ if (selected(ox, oy)) og.mode ^= ATTR_REVERSE; - xdrawglyph(og, ox, oy); + + /* Redraw the line where cursor was previously. + * It will restore the ligatures broken by the cursor. */ + xdrawline(line, 0, oy, len); if (IS_SET(MODE_HIDE)) return; @@ -1532,7 +1599,7 @@ xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og) /* * Select the right color for the right mode. */ - g.mode &= ATTR_BOLD|ATTR_ITALIC|ATTR_UNDERLINE|ATTR_STRUCK|ATTR_WIDE; + g.mode &= ATTR_BOLD|ATTR_ITALIC|ATTR_UNDERLINE|ATTR_STRUCK|ATTR_WIDE|ATTR_BOXDRAW; if (IS_SET(MODE_REVERSE)) { g.mode |= ATTR_REVERSE; @@ -1652,18 +1719,16 @@ xdrawline(Line line, int x1, int y1, int x2) 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++) { + for (x = x1; x < x2; 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; + if ((i > 0) && ATTRCMP(base, new)) { + numspecs = xmakeglyphfontspecs(specs, &line[ox], x - ox, ox, y1); + xdrawglyphfontspecs(specs, base, numspecs, ox, y1); i = 0; } if (i == 0) { @@ -1672,8 +1737,10 @@ xdrawline(Line line, int x1, int y1, int x2) } i++; } - if (i > 0) - xdrawglyphfontspecs(specs, base, i, ox, y1); + if (i > 0) { + numspecs = xmakeglyphfontspecs(specs, &line[ox], x2 - ox, ox, y1); + xdrawglyphfontspecs(specs, base, numspecs, ox, y1); + } } void