From 1317d64817460aee9321e29e5e31c072d59139c6 Mon Sep 17 00:00:00 2001
From: Matthias Schoth <mschoth@gmail.com>
Date: Sun, 17 Apr 2022 04:01:59 +0200
Subject: [PATCH] Reload background image on USR1 signal.

---
 x.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/x.c b/x.c
index fedef53..ac79ac7 100644
--- a/x.c
+++ b/x.c
@@ -156,6 +156,7 @@ static int xicdestroy(XIC, XPointer, XPointer);
 static void xinit(int, int);
 static void updatexy(void);
 static XImage *loadff(const char *);
+static void bgreload();
 static void bginit();
 static void cresize(int, int);
 static void xresize(int, int);
@@ -1305,6 +1306,18 @@ loadff(const char *filename)
 	return xi;
 }
 
+/*
+ * reload background image on USR1 signal
+ */
+void
+bgreload()
+{
+	XFreeGC(xw.dpy, xw.bggc);
+	bginit();
+	redraw();
+	signal(SIGUSR1, bgreload);
+}
+
 /*
  * initialize background image
  */
@@ -2193,6 +2206,7 @@ run:
 	tnew(cols, rows);
 	xinit(cols, rows);
 	bginit();
+	signal(SIGUSR1, bgreload);
 	xsetenv();
 	selinit();
 	run();
-- 
2.35.3