From f0554b27df459b7794d990f9da72318e2e3d2620 Mon Sep 17 00:00:00 2001
From: Sadie Powell <sadie@witchery.services>
Date: Sun, 23 May 2021 19:01:39 +0100
Subject: [PATCH] Add a workaround for icons not scaling right on HiDPI
 screens. (#2573)

---
 src/fe-gtk/pixmaps.c | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/src/fe-gtk/pixmaps.c b/src/fe-gtk/pixmaps.c
index 6c6cfaeb..9bdf46fc 100644
--- a/src/fe-gtk/pixmaps.c
+++ b/src/fe-gtk/pixmaps.c
@@ -89,7 +89,9 @@ pixmap_load_from_file (char *filename)
 static GdkPixbuf *
 load_pixmap (const char *filename)
 {
-	GdkPixbuf *pixbuf;
+	GdkPixbuf *pixbuf, *scaledpixbuf;
+	const char *scale;
+	int iscale;
 
 	gchar *path = g_strdup_printf ("%s" G_DIR_SEPARATOR_S "icons" G_DIR_SEPARATOR_S "%s.png", get_xdir (), filename);
 	pixbuf = gdk_pixbuf_new_from_file (path, 0);
@@ -102,6 +104,24 @@ load_pixmap (const char *filename)
 		g_free (path);
 	}
 
+	// Hack to avoid unbearably tiny icons on HiDPI screens.
+	scale = g_getenv ("GDK_SCALE");
+	if (scale)
+	{
+		iscale = atoi (scale);
+		if (iscale > 0)
+		{
+			scaledpixbuf = gdk_pixbuf_scale_simple (pixbuf, gdk_pixbuf_get_width (pixbuf) * iscale,
+				gdk_pixbuf_get_height (pixbuf) * iscale, GDK_INTERP_BILINEAR);
+
+			if (scaledpixbuf)
+			{
+				g_object_unref (pixbuf);
+				pixbuf = scaledpixbuf;
+			}
+		}
+	}
+
 	g_warn_if_fail (pixbuf != NULL);
 
 	return pixbuf;