get rid of boxdraw, fix readme

2019-04-04 15:31:30 +03:00 · 2019-04-04 15:31:30 +03:00 · 6b4a15026e
commit 6b4a15026e
parent 14ad67f639
3 changed files with 1 additions and 601 deletions
--- a/README.md
+++ b/README.md
@ -4,10 +4,9 @@ st-patches
 A personal set of st configuration and patches because why the fuck not.

 Includes:
-* [st-boxdraw_v2-0.8.2.diff](https://st.suckless.org/patches/boxdraw/) - draw beautiful pseudo graphic lines instead of whatever your font provides
 * st-bright-bold-text.patch - make non-colored bold text brigh
 * st-clipboard.patch - copy to both selection and clipboard, paste from clipboard, based on [st-clipboard-0.8.2.diff](https://st.suckless.org/patches/clipboard/), with right click to copy from clipboard
-* st-disable-bold-italic-fonts.patch - actually disable bold, italic or bold italic font styles
+* st-disable-bold-italic-fonts.patch - disable bold, italic or bold italic font styles, based on [st-disable-bold-italic-fonts.diff](https://st.suckless.org/patches/disable_bold_italic_fonts/)
 * st-disable-intensity-styles.patch - disable so called "intensity styles", do not make colored bold text bright
 * makest - a simple script to apply all the patches and build st
 * config.h - my config
--- a/1
+++ b/1
@ -4,7 +4,6 @@ ST_REPO=https://git.suckless.org/st
 ST_SRC=$PWD/st
 ST_CFG=$PWD/config.h
 PATCHLIST=(
-    st-boxdraw_v2-0.8.2.diff
    st-bright-bold-text.patch
    st-clipboard.patch
    st-disable-bold-italic-fonts.patch
--- a/st-boxdraw_v2-0.8.2.diff
+++ b/st-boxdraw_v2-0.8.2.diff
@ -1,598 +0,0 @@
-From 318ae7fe1bd614cb937c8f43d855a1c2e8e93fd4 Mon Sep 17 00:00:00 2001
-From: "Avi Halachmi (:avih)" <avihpit@yahoo.com>
-Date: Wed, 26 Dec 2018 14:51:45 +0200
-Subject: [PATCH] boxdraw_v2: custom render lines/blocks/braille for perfect
- alignment
-
-It seems impossible to ensure that blocks and line drawing glyphs
-align without visible gaps for all combinations of arbitrary font,
-size and width/height scale factor.
-
-This commit adds options to render most of the lines/blocks and
-braille codepoints without using the font such that they align
-perfectly regardless of font, size or other configuration values.
-
-Supported codepoints are U+2500 - U+259F except dashes/diagonals,
-and U28XX.
-
-The lines/blocks data is stored as 16-bit values at boxdraw_data.h
-
-boxdraw/braille are independent, disabled by default at config[.def].h
---
- 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 <X11/Xft/Xft.h>
-+#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 0e01717..e3654a9 100644
--- a/config.def.h
-+++ b/config.def.h
-@@ -56,6 +56,18 @@ 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 b8e6077..d65f722 100644
--- a/st.c
-+++ b/st.c
-@@ -1230,6 +1230,9 @@ tsetchar(Rune u, 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 38c61c4..9275632 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,
- };
- 
-@@ -110,6 +111,14 @@ void *xmalloc(size_t);
- void *xrealloc(void *, size_t);
- char *xstrdup(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 *stty_args;
-@@ -120,3 +129,4 @@ extern char *termname;
- extern unsigned int tabspaces;
- extern unsigned int defaultfg;
- extern unsigned int defaultbg;
-+extern const int boxdraw, boxdraw_bold, boxdraw_braille;
-diff --git a/x.c b/x.c
-index 0422421..c740bed 100644
--- a/x.c
-+++ b/x.c
-@@ -1118,6 +1118,8 @@ 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
-@@ -1164,8 +1166,13 @@ 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;
-@@ -1372,8 +1379,12 @@ 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) {
-@@ -1416,7 +1427,7 @@ 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;
-- 
-2.17.1
-