Adding scrollback patch

README.md

@@ -11,7 +11,7 @@ Refer to [https://dwm.suckless.org/](https://st.suckless.org/) for details on th
 
 ### Changelog:
 
-2019-09-16 - Added alpha, anysize, bold-is-not-bright, clipboard, copyurl, disable-fonts, fixime, hidecursor, newterm and open-copied-url patches
+2019-09-16 - Added alpha, anysize, bold-is-not-bright, clipboard, copyurl, disable-fonts, fixime, hidecursor, newterm, open-copied-url, vertcenter, scrollback and xresources patches
 
 ### Patches included:
 
@@ -47,4 +47,14 @@ Refer to [https://dwm.suckless.org/](https://st.suckless.org/) for details on th
       - it will have the same CWD (current working directory) as the original st instance
 
    - [open-copied-url](https://st.suckless.org/patches/open_copied_url/)
-      - open contents of the clipboard in a user-defined browser
+      - open contents of the clipboard in a user-defined browser
+
+   - [scrollback](https://st.suckless.org/patches/scrollback/)
+      - allows you scroll back through terminal output using keyboard shortcuts or mousewheel
+
+   - [vertcenter](https://st.suckless.org/patches/vertcenter/)
+      - vertically center lines in the space available if you have set a larger chscale in config.h
+
+   - [xresources](https://st.suckless.org/patches/xresources/)
+      - adds the ability to configure st via Xresources
+      - during startup, st will read and apply the resources named in the resources[] array in config.h

config.def.h

@@ -206,10 +206,28 @@ ResourcePref resources[] = {
  */
 static MouseShortcut mshortcuts[] = {
 	/* button               mask            string */
+	#if SCROLLBACK_MOUSE_PATCH || SCROLLBACK_MOUSE_ALTSCREEN_PATCH
+	{ Button4,              XK_NO_MOD,      "\031" },
+	{ Button5,              XK_NO_MOD,      "\005" },
+	#else
 	{ Button4,              XK_ANY_MOD,     "\031" },
 	{ Button5,              XK_ANY_MOD,     "\005" },
+	#endif // SCROLLBACK_MOUSE_PATCH / SCROLLBACK_MOUSE_ALTSCREEN_PATCH
 };
 
+#if SCROLLBACK_MOUSE_PATCH || SCROLLBACK_MOUSE_ALTSCREEN_PATCH
+MouseKey mkeys[] = {
+	/* button               mask            function        argument */
+	#if SCROLLBACK_MOUSE_ALTSCREEN_PATCH
+	{ Button4,              XK_NO_MOD,      kscrollup,      {.i =  1} },
+	{ Button5,              XK_NO_MOD,      kscrolldown,    {.i =  1} },
+	#else
+	{ Button4,              ShiftMask,      kscrollup,      {.i =  1} },
+	{ Button5,              ShiftMask,      kscrolldown,    {.i =  1} },
+	#endif // SCROLLBACK_MOUSE_ALTSCREEN_PATCH
+};
+#endif // SCROLLBACK_MOUSE_PATCH / SCROLLBACK_MOUSE_ALTSCREEN_PATCH
+
 /* Internal keyboard shortcuts. */
 #define MODKEY Mod1Mask
 #define TERMMOD (ControlMask|ShiftMask)
@@ -225,6 +243,10 @@ static Shortcut shortcuts[] = {
 	{ TERMMOD,              XK_Home,        zoomreset,      {.f =  0} },
 	{ TERMMOD,              XK_C,           clipcopy,       {.i =  0} },
 	{ TERMMOD,              XK_V,           clippaste,      {.i =  0} },
+	#if SCROLLBACK_PATCH
+	{ ShiftMask,            XK_Page_Up,     kscrollup,      {.i = -1} },
+	{ ShiftMask,            XK_Page_Down,   kscrolldown,    {.i = -1} },
+	#endif // SCROLLBACK_PATCH
 	#if CLIPBOARD_PATCH
 	{ TERMMOD,              XK_Y,           clippaste,      {.i =  0} },
 	{ ShiftMask,            XK_Insert,      clippaste,      {.i =  0} },

patch/scrollback.c

@@ -0,0 +1,38 @@
+void
+kscrolldown(const Arg* a)
+{
+	int n = a->i;
+
+	if (n < 0)
+		n = term.row + n;
+
+	if (n > term.scr)
+		n = term.scr;
+
+	if (term.scr > 0) {
+		term.scr -= n;
+		selscroll(0, -n);
+		tfulldirt();
+	}
+}
+
+void
+kscrollup(const Arg* a)
+{
+	int n = a->i;
+	if (n < 0)
+		n = term.row + n;
+
+	if (term.scr <= HISTSIZE-n) {
+		term.scr += n;
+		selscroll(0, n);
+		tfulldirt();
+	}
+}
+
+#if SCROLLBACK_MOUSE_ALTSCREEN_PATCH
+int tisaltscr(void)
+{
+	return IS_SET(MODE_ALTSCREEN);
+}
+#endif // SCROLLBACK_MOUSE_ALTSCREEN_PATCH

patch/scrollback.h

@@ -0,0 +1,21 @@
+#define TLINE(y) ((y) < term.scr ? term.hist[((y) + term.histi - \
+                     term.scr + HISTSIZE + 1) % HISTSIZE] : \
+                     term.line[(y) - term.scr])
+
+void kscrolldown(const Arg *);
+void kscrollup(const Arg *);
+
+#if SCROLLBACK_MOUSE_PATCH || SCROLLBACK_MOUSE_ALTSCREEN_PATCH
+typedef struct {
+	 uint b;
+	 uint mask;
+	 void (*func)(const Arg *);
+	 const Arg arg;
+} MouseKey;
+
+extern MouseKey mkeys[];
+#endif // SCROLLBACK_MOUSE_PATCH / SCROLLBACK_MOUSE_ALTSCREEN_PATCH
+
+#if SCROLLBACK_MOUSE_ALTSCREEN_PATCH
+int tisaltscr(void);
+#endif // SCROLLBACK_MOUSE_ALTSCREEN_PATCH

patch/st_include.c

@@ -6,4 +6,8 @@
 
 #if NEWTERM_PATCH
 #include "newterm.c"
+#endif
+
+#if SCROLLBACK_PATCH || SCROLLBACK_MOUSE_PATCH || SCROLLBACK_MOUSE_ALTSCREEN_PATCH
+#include "scrollback.c"
 #endif

patch/st_include.h

@@ -10,4 +10,8 @@ void xximspot(int, int);
 
 #if NEWTERM_PATCH
 #include "newterm.h"
+#endif
+
+#if SCROLLBACK_PATCH || SCROLLBACK_MOUSE_PATCH || SCROLLBACK_MOUSE_ALTSCREEN_PATCH
+#include "scrollback.h"
 #endif

patches.h

@@ -80,6 +80,29 @@
  */
 #define OPENCOPIED_PATCH 1
 
+/* Scroll back through terminal output using Shift+{PageUp, PageDown}.
+ * https://st.suckless.org/patches/scrollback/
+ */
+#define SCROLLBACK_PATCH 1
+
+/* Scroll back through terminal output using Shift+MouseWheel.
+ * This variant depends on SCROLLBACK_PATCH being enabled.
+ * https://st.suckless.org/patches/scrollback/
+ */
+#define SCROLLBACK_MOUSE_PATCH 0
+
+/* Scroll back through terminal output using mouse wheel (when not in MODE_ALTSCREEN).
+ * This variant depends on SCROLLBACK_PATCH being enabled.
+ * https://st.suckless.org/patches/scrollback/
+ */
+#define SCROLLBACK_MOUSE_ALTSCREEN_PATCH 1
+
+/*
+ * Vertically center lines in the space available if you have set a larger chscale in config.h
+ * https://st.suckless.org/patches/vertcenter/
+ */
+#define VERTCENTER_PATCH 1
+
 /* This patch adds the ability to configure st via Xresources. At startup, st will read and
  * apply the resources named in the resources[] array in config.h.
  * https://st.suckless.org/patches/xresources/

st.c

@@ -35,6 +35,9 @@
 #define ESC_ARG_SIZ   16
 #define STR_BUF_SIZ   ESC_BUF_SIZ
 #define STR_ARG_SIZ   ESC_ARG_SIZ
+#if SCROLLBACK_PATCH
+#define HISTSIZE      2000
+#endif // SCROLLBACK_PATCH
 
 /* macros */
 #define IS_SET(flag)		((term.mode & (flag)) != 0)
@@ -117,6 +120,11 @@ typedef struct {
 	int col;      /* nb col */
 	Line *line;   /* screen */
 	Line *alt;    /* alternate screen */
+	#if SCROLLBACK_PATCH
+	Line hist[HISTSIZE]; /* history buffer */
+	int histi;    /* history index */
+	int scr;      /* scroll back */
+	#endif // SCROLLBACK_PATCH
 	int *dirty;   /* dirtyness of lines */
 	TCursor c;    /* cursor */
 	int ocx;      /* old cursor col */
@@ -184,8 +192,13 @@ static void tnewline(int);
 static void tputtab(int);
 static void tputc(Rune);
 static void treset(void);
+#if SCROLLBACK_PATCH
+static void tscrollup(int, int, int);
+static void tscrolldown(int, int, int);
+#else
 static void tscrollup(int, int);
 static void tscrolldown(int, int);
+#endif // SCROLLBACK_PATCH
 static void tsetattr(int *, int);
 static void tsetchar(Rune, Glyph *, int, int);
 static void tsetdirt(int, int);
@@ -429,11 +442,19 @@ tlinelen(int y)
 {
 	int i = term.col;
 
+	#if SCROLLBACK_PATCH
+	if (TLINE(y)[i - 1].mode & ATTR_WRAP)
+		return i;
+
+	while (i > 0 && TLINE(y)[i - 1].u == ' ')
+ 		--i;
+	#else
 	if (term.line[y][i - 1].mode & ATTR_WRAP)
 		return i;
 
 	while (i > 0 && term.line[y][i - 1].u == ' ')
 		--i;
+	#endif // SCROLLBACK_PATCH
 
 	return i;
 }
@@ -541,7 +562,11 @@ selsnap(int *x, int *y, int direction)
 		 * Snap around if the word wraps around at the end or
 		 * beginning of a line.
 		 */
+		#if SCROLLBACK_PATCH
+		prevgp = &TLINE(*y)[*x];
+		#else
 		prevgp = &term.line[*y][*x];
+		#endif // SCROLLBACK_PATCH
 		prevdelim = ISDELIM(prevgp->u);
 		for (;;) {
 			newx = *x + direction;
@@ -556,14 +581,22 @@ selsnap(int *x, int *y, int direction)
 					yt = *y, xt = *x;
 				else
 					yt = newy, xt = newx;
+				#if SCROLLBACK_PATCH
+				if (!(TLINE(yt)[xt].mode & ATTR_WRAP))
+				#else
 				if (!(term.line[yt][xt].mode & ATTR_WRAP))
+				#endif // SCROLLBACK_PATCH
 					break;
 			}
 
 			if (newx >= tlinelen(newy))
 				break;
 
+			#if SCROLLBACK_PATCH
+			gp = &TLINE(newy)[newx];
+			#else
 			gp = &term.line[newy][newx];
+			#endif // SCROLLBACK_PATCH
 			delim = ISDELIM(gp->u);
 			if (!(gp->mode & ATTR_WDUMMY) && (delim != prevdelim
 					|| (delim && gp->u != prevgp->u)))
@@ -584,14 +617,22 @@ selsnap(int *x, int *y, int direction)
 		*x = (direction < 0) ? 0 : term.col - 1;
 		if (direction < 0) {
 			for (; *y > 0; *y += direction) {
+				#if SCROLLBACK_PATCH
+				if (!(TLINE(*y-1)[term.col-1].mode
+				#else
 				if (!(term.line[*y-1][term.col-1].mode
+				#endif // SCROLLBACK_PATCH
 						& ATTR_WRAP)) {
 					break;
 				}
 			}
 		} else if (direction > 0) {
 			for (; *y < term.row-1; *y += direction) {
+				#if SCROLLBACK_PATCH
+				if (!(TLINE(*y)[term.col-1].mode
+				#else
 				if (!(term.line[*y][term.col-1].mode
+				#endif // SCROLLBACK_PATCH
 						& ATTR_WRAP)) {
 					break;
 				}
@@ -622,13 +663,25 @@ getsel(void)
 		}
 
 		if (sel.type == SEL_RECTANGULAR) {
+			#if SCROLLBACK_PATCH
+			gp = &TLINE(y)[sel.nb.x];
+			#else
 			gp = &term.line[y][sel.nb.x];
+			#endif // SCROLLBACK_PATCH
 			lastx = sel.ne.x;
 		} else {
+			#if SCROLLBACK_PATCH
+			gp = &TLINE(y)[sel.nb.y == y ? sel.nb.x : 0];
+			#else
 			gp = &term.line[y][sel.nb.y == y ? sel.nb.x : 0];
+			#endif // SCROLLBACK_PATCH
 			lastx = (sel.ne.y == y) ? sel.ne.x : term.col-1;
 		}
+		#if SCROLLBACK_PATCH
+		last = &TLINE(y)[MIN(lastx, linelen-1)];
+		#else
 		last = &term.line[y][MIN(lastx, linelen-1)];
+		#endif // SCROLLBACK_PATCH
 		while (last >= gp && last->u == ' ')
 			--last;
 
@@ -851,6 +904,11 @@ void
 ttywrite(const char *s, size_t n, int may_echo)
 {
 	const char *next;
+	#if SCROLLBACK_PATCH
+	Arg arg = (Arg) { .i = term.scr };
+
+	kscrolldown(&arg);
+	#endif // SCROLLBACK_PATCH
 
 	if (may_echo && IS_SET(MODE_ECHO))
 		twrite(s, n, 1);
@@ -1062,13 +1120,26 @@ tswapscreen(void)
 }
 
 void
+#if SCROLLBACK_PATCH
+tscrolldown(int orig, int n, int copyhist)
+#else
 tscrolldown(int orig, int n)
+#endif // SCROLLBACK_PATCH
 {
 	int i;
 	Line temp;
 
 	LIMIT(n, 0, term.bot-orig+1);
 
+	#if SCROLLBACK_PATCH
+	if (copyhist) {
+		term.histi = (term.histi - 1 + HISTSIZE) % HISTSIZE;
+		temp = term.hist[term.histi];
+		term.hist[term.histi] = term.line[term.bot];
+		term.line[term.bot] = temp;
+	}
+	#endif // SCROLLBACK_PATCH
+
 	tsetdirt(orig, term.bot-n);
 	tclearregion(0, term.bot-n+1, term.col-1, term.bot);
 
@@ -1082,13 +1153,29 @@ tscrolldown(int orig, int n)
 }
 
 void
+#if SCROLLBACK_PATCH
+tscrollup(int orig, int n, int copyhist)
+#else
 tscrollup(int orig, int n)
+#endif // SCROLLBACK_PATCH
 {
 	int i;
 	Line temp;
 
 	LIMIT(n, 0, term.bot-orig+1);
 
+	#if SCROLLBACK_PATCH
+	if (copyhist) {
+		term.histi = (term.histi + 1) % HISTSIZE;
+		temp = term.hist[term.histi];
+		term.hist[term.histi] = term.line[orig];
+		term.line[orig] = temp;
+	}
+
+	if (term.scr > 0 && term.scr < HISTSIZE)
+		term.scr = MIN(term.scr + n, HISTSIZE-1);
+	#endif // SCROLLBACK_PATCH
+
 	tclearregion(0, orig, term.col-1, orig+n-1);
 	tsetdirt(orig+n, term.bot);
 
@@ -1137,7 +1224,11 @@ tnewline(int first_col)
 	int y = term.c.y;
 
 	if (y == term.bot) {
+		#if SCROLLBACK_PATCH
+		tscrollup(term.top, 1, 1);
+		#else
 		tscrollup(term.top, 1);
+		#endif // SCROLLBACK_PATCH
 	} else {
 		y++;
 	}
@@ -1302,14 +1393,22 @@ void
 tinsertblankline(int n)
 {
 	if (BETWEEN(term.c.y, term.top, term.bot))
+		#if SCROLLBACK_PATCH
+		tscrolldown(term.c.y, n, 0);
+		#else
 		tscrolldown(term.c.y, n);
+		#endif // SCROLLBACK_PATCH
 }
 
 void
 tdeleteline(int n)
 {
 	if (BETWEEN(term.c.y, term.top, term.bot))
+		#if SCROLLBACK_PATCH
+		tscrollup(term.c.y, n, 0);
+		#else
 		tscrollup(term.c.y, n);
+		#endif // SCROLLBACK_PATCH
 }
 
 int32_t
@@ -1739,11 +1838,19 @@ csihandle(void)
 		break;
 	case 'S': /* SU -- Scroll <n> line up */
 		DEFAULT(csiescseq.arg[0], 1);
+		#if SCROLLBACK_PATCH
+		tscrollup(term.top, csiescseq.arg[0], 0);
+		#else
 		tscrollup(term.top, csiescseq.arg[0]);
+		#endif // SCROLLBACK_PATCH
 		break;
 	case 'T': /* SD -- Scroll <n> line down */
 		DEFAULT(csiescseq.arg[0], 1);
+		#if SCROLLBACK_PATCH
+		tscrolldown(term.top, csiescseq.arg[0], 0);
+		#else
 		tscrolldown(term.top, csiescseq.arg[0]);
+		#endif // SCROLLBACK_PATCH
 		break;
 	case 'L': /* IL -- Insert <n> blank lines */
 		DEFAULT(csiescseq.arg[0], 1);
@@ -2245,7 +2352,11 @@ eschandle(uchar ascii)
 		return 0;
 	case 'D': /* IND -- Linefeed */
 		if (term.c.y == term.bot) {
+			#if SCROLLBACK_PATCH
+			tscrollup(term.top, 1, 1);
+			#else
 			tscrollup(term.top, 1);
+			#endif // SCROLLBACK_PATCH
 		} else {
 			tmoveto(term.c.x, term.c.y+1);
 		}
@@ -2258,7 +2369,11 @@ eschandle(uchar ascii)
 		break;
 	case 'M': /* RI -- Reverse index */
 		if (term.c.y == term.top) {
+			#if SCROLLBACK_PATCH
+			tscrolldown(term.top, 1, 1);
+			#else
 			tscrolldown(term.top, 1);
+			#endif // SCROLLBACK_PATCH
 		} else {
 			tmoveto(term.c.x, term.c.y-1);
 		}
@@ -2478,6 +2593,9 @@ void
 tresize(int col, int row)
 {
 	int i;
+	#if SCROLLBACK_PATCH
+	int j;
+	#endif // SCROLLBACK_PATCH
 	int minrow = MIN(row, term.row);
 	int mincol = MIN(col, term.col);
 	int *bp;
@@ -2514,6 +2632,16 @@ tresize(int col, int row)
 	term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty));
 	term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs));
 
+	#if SCROLLBACK_PATCH
+	for (i = 0; i < HISTSIZE; i++) {
+		term.hist[i] = xrealloc(term.hist[i], col * sizeof(Glyph));
+		for (j = mincol; j < col; j++) {
+			term.hist[i][j] = term.c.attr;
+			term.hist[i][j].u = ' ';
+		}
+	}
+	#endif // SCROLLBACK_PATCH
+
 	/* resize each row to new width, zero-pad if needed */
 	for (i = 0; i < minrow; i++) {
 		term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph));
@@ -2571,7 +2699,11 @@ drawregion(int x1, int y1, int x2, int y2)
 			continue;
 
 		term.dirty[y] = 0;
+		#if SCROLLBACK_PATCH
+		xdrawline(TLINE(y), x1, y, x2);
+		#else
 		xdrawline(term.line[y], x1, y, x2);
+		#endif // SCROLLBACK_PATCH
 	}
 }
 
@@ -2592,6 +2724,10 @@ draw(void)
 		cx--;
 
 	drawregion(0, 0, term.col, term.row);
+
+	#if SCROLLBACK_PATCH
+	if (term.scr == 0)
+	#endif // SCROLLBACK_PATCH
 	xdrawcursor(cx, term.c.y, term.line[term.c.y][cx],
 			term.ocx, term.ocy, term.line[term.ocy][term.ocx]);
 	term.ocx = cx, term.ocy = term.c.y;

x.c

@@ -86,6 +86,9 @@ typedef struct {
 	#endif // ANYSIZE_PATCH
 	int ch; /* char height */
 	int cw; /* char width  */
+	#if VERTCENTER_PATCH
+	int cyo; /* char y offset */
+	#endif // VERTCENTER_PATCH
 	int mode; /* window state/mode flags */
 	int cursor; /* cursor style */
 } TermWindow;
@@ -438,6 +441,9 @@ bpress(XEvent *e)
 {
 	struct timespec now;
 	MouseShortcut *ms;
+	#if SCROLLBACK_MOUSE_PATCH || SCROLLBACK_MOUSE_ALTSCREEN_PATCH
+	MouseKey *mk;
+	#endif // SCROLLBACK_MOUSE_PATCH / SCROLLBACK_MOUSE_ALTSCREEN_PATCH
 	int snap;
 
 	if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) {
@@ -445,6 +451,9 @@ bpress(XEvent *e)
 		return;
 	}
 
+	#if SCROLLBACK_MOUSE_ALTSCREEN_PATCH
+	if (tisaltscr())
+	#endif // SCROLLBACK_MOUSE_ALTSCREEN_PATCH
 	for (ms = mshortcuts; ms < mshortcuts + LEN(mshortcuts); ms++) {
 		if (e->xbutton.button == ms->b
 				&& match(ms->mask, e->xbutton.state)) {
@@ -453,6 +462,16 @@ bpress(XEvent *e)
 		}
 	}
 
+	#if SCROLLBACK_MOUSE_PATCH || SCROLLBACK_MOUSE_ALTSCREEN_PATCH
+	for (mk = mkeys; mk < mkeys + LEN(mkeys); mk++) {
+		if (e->xbutton.button == mk->b
+				&& match(mk->mask, e->xbutton.state)) {
+			mk->func(&mk->arg);
+			return;
+		}
+	}
+	#endif // SCROLLBACK_MOUSE_PATCH / SCROLLBACK_MOUSE_ALTSCREEN_PATCH
+
 	if (e->xbutton.button == Button1) {
 		/*
 		 * If the user clicks below predefined timeouts specific
@@ -1029,6 +1048,9 @@ xloadfonts(char *fontstr, double fontsize)
 	/* Setting character width and height. */
 	win.cw = ceilf(dc.font.width * cwscale);
 	win.ch = ceilf(dc.font.height * chscale);
+	#if VERTCENTER_PATCH
+	win.cyo = ceilf(dc.font.height * (chscale - 1) / 2);
+	#endif // VERTCENTER_PATCH
 
 	FcPatternDel(pattern, FC_SLANT);
 	#if !DISABLE_ITALIC_FONTS_PATCH
@@ -1283,7 +1305,12 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x
 	FcCharSet *fccharset;
 	int i, f, numspecs = 0;
 
-	for (i = 0, xp = winx, yp = winy + font->ascent; i < len; ++i) {
+	#if VERTCENTER_PATCH
+	for (i = 0, xp = winx, yp = winy + font->ascent + win.cyo; i < len; ++i)
+	#else
+	for (i = 0, xp = winx, yp = winy + font->ascent; i < len; ++i)
+	#endif // VERTCENTER_PATCH
+	{
 		/* Fetch rune and mode for current glyph. */
 		rune = glyphs[i].u;
 		mode = glyphs[i].mode;
@@ -1308,7 +1335,11 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x
 				font = &dc.bfont;
 				frcflags = FRC_BOLD;
 			}
+			#if VERTCENTER_PATCH
+			yp = winy + font->ascent + win.cyo;
+			#else
 			yp = winy + font->ascent;
+			#endif // VERTCENTER_PATCH
 		}
 
 		/* Lookup character index with default font. */
@@ -1546,13 +1577,23 @@ xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, i
 
 	/* Render underline and strikethrough. */
 	if (base.mode & ATTR_UNDERLINE) {
+		#if VERTCENTER_PATCH
+		XftDrawRect(xw.draw, fg, winx, winy + win.cyo + dc.font.ascent + 1,
+				width, 1);
+		#else
 		XftDrawRect(xw.draw, fg, winx, winy + dc.font.ascent + 1,
 				width, 1);
+		#endif
 	}
 
 	if (base.mode & ATTR_STRUCK) {
+		#if VERTCENTER_PATCH
+		XftDrawRect(xw.draw, fg, winx, winy + win.cyo + 2 * dc.font.ascent / 3,
+				width, 1);
+		#else
 		XftDrawRect(xw.draw, fg, winx, winy + 2 * dc.font.ascent / 3,
 				width, 1);
+		#endif // VERTCENTER_PATCH
 	}
 
 	/* Reset clip to none. */