From 02739346a8b1a49bee077780410bcd2925067f0b Mon Sep 17 00:00:00 2001
From: Justinas Grigas <jstn_as@protonmail.com>
Date: Sun, 31 Jul 2022 10:43:14 +0300
Subject: [PATCH] cyclefonts: keybind to cycle fonts (agree with
 st-xresources-signal-reloading)

This patch is an update to the 20210604, which fixes zoomreset.

Because the cyclefonts function doesn't change the defaultfontsize
variable, zoomreset function resets all fonts to the size of the first
one loaded.

With this patch, zoomreset will reset the font to the specified fontsize
---
 config.def.h | 11 ++++++++++-
 x.c          | 22 ++++++++++++++--------
 2 files changed, 24 insertions(+), 9 deletions(-)

diff --git a/config.def.h b/config.def.h
index baa22c6..681056e 100644
--- a/config.def.h
+++ b/config.def.h
@@ -5,7 +5,15 @@
  *
  * font: see http://freedesktop.org/software/fontconfig/fontconfig-user.html
  */
-static char *font = "Liberation Mono:pixelsize=12:antialias=true:autohint=true";
+static char *fonts[] = {
+	"FiraCode Nerd Font:size=10",
+	"Monaspace Neon:size=10",
+	"Monaspace Argon:size=10",
+	"Monaspace Xenon:size=10",
+	"Monaspace Radon:size=10",
+	"Monaspace Krypton:size=10",
+};
+static size_t currentfont = 0;
 static int borderpx = 2;
 
 
@@ -254,6 +262,7 @@ static Shortcut shortcuts[] = {
 	{ ShiftMask,            XK_Insert,      selpaste,       {.i =  0} },
 	{ TERMMOD,              XK_Num_Lock,    numlock,        {.i =  0} },
 	{ MODKEY,               XK_c,           normalMode,     {.i =  0} },
+	{ TERMMOD,              XK_S,           cyclefonts,     {}        },
 };
 
 /*
diff --git a/x.c b/x.c
index 881ec52..e3d3db3 100644
--- a/x.c
+++ b/x.c
@@ -61,6 +61,7 @@ static void zoom(const Arg *);
 static void zoomabs(const Arg *);
 static void zoomreset(const Arg *);
 static void ttysend(const Arg *);
+static void cyclefonts(const Arg *);
 
 /* config.h for applying patches and the configuration. */
 #include "config.h"
@@ -334,11 +335,7 @@ void
 zoomreset(const Arg *arg)
 {
 	Arg larg;
-
-	if (defaultfontsize > 0) {
-		larg.f = defaultfontsize;
-		zoomabs(&larg);
-	}
+	zoomabs(&larg);
 }
 
 void
@@ -363,6 +360,15 @@ evrow(XEvent *e)
 	return y / win.ch;
 }
 
+void cyclefonts(const Arg *arg) {
+	currentfont++;
+	currentfont %= (sizeof fonts / sizeof fonts[0]);
+	usedfont = fonts[currentfont];
+	Arg larg;
+	larg.f = usedfontsize;
+	zoomabs(&larg);
+}
+
 void
 mousesel(XEvent *e, int done)
 {
@@ -1189,7 +1195,7 @@ xinit(int cols, int rows)
 	if (!FcInit())
 		die("could not init fontconfig.\n");
 
-	usedfont = (opt_font == NULL)? font : opt_font;
+	usedfont = (opt_font == NULL) ? fonts[currentfont] : opt_font;
 	xloadfonts(usedfont, 0);
 
 	/* colors */
@@ -2194,7 +2200,7 @@ xrdb_load(void)
 		  defaultrcs = defaultbg;
 		}
 
-		XRESOURCE_LOAD_STRING("font", font);
+		XRESOURCE_LOAD_STRING("font", fonts[0]);
 		XRESOURCE_LOAD_STRING("termname", termname);
 
 		XRESOURCE_LOAD_INTEGER("blinktimeout", blinktimeout);
@@ -2217,7 +2223,7 @@ reload(int sig)
 	/* colors, fonts */
 	xloadcols();
 	xunloadfonts();
-	xloadfonts(font, 0);
+	xloadfonts(fonts[currentfont], 0);
 
 	/* pretend the window just got resized */
 	cresize(win.w, win.h);