From 2d8a637f7dd1d3e27c335b1801ca63f1e727f04f Mon Sep 17 00:00:00 2001
From: Alexander Batalov <alex.batalov@gmail.com>
Date: Wed, 19 Jul 2023 12:05:39 +0300
Subject: [PATCH] Force debug window font

---
 src/window_manager_private.cc | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/window_manager_private.cc b/src/window_manager_private.cc
index bd0b3ff..1076a3d 100644
--- a/src/window_manager_private.cc
+++ b/src/window_manager_private.cc
@@ -722,6 +722,12 @@ int _win_debug(char* string)
         return -1;
     }
 
+    // CE: Debug window metrics were designed for default DOS-style font (0).
+    // We don't expect caller to properly set one, so without manually forcing
+    // it debug window might contain mixed fonts.
+    int oldFont = fontGetCurrent();
+    fontSetCurrent(0);
+
     int lineHeight = fontGetLineHeight();
 
     if (_wd == -1) {
@@ -828,6 +834,9 @@ int _win_debug(char* string)
 
     windowRefresh(_wd);
 
+    // CE: Restore font.
+    fontSetCurrent(oldFont);
+
     return 0;
 }