From 3aa1aec958e0926b9f4883316bae016b76a74eea Mon Sep 17 00:00:00 2001
From: Marko Lindqvist <cazfi74@gmail.com>
Date: Thu, 16 Jun 2022 04:08:08 +0300
Subject: [PATCH 43/43] Qt: Select smooth font size for the default fonts

When selecting default fonts, set their size to
ont of the smooth sizes of that font.

See osdn #44034

Signed-off-by: Marko Lindqvist <cazfi74@gmail.com>
---
 client/gui-qt/fonts.cpp | 29 ++++++++++++++++++++++++++++-
 1 file changed, 28 insertions(+), 1 deletion(-)

diff --git a/client/gui-qt/fonts.cpp b/client/gui-qt/fonts.cpp
index ae04a4fa5d..2f1f9519e7 100644
--- a/client/gui-qt/fonts.cpp
+++ b/client/gui-qt/fonts.cpp
@@ -221,11 +221,38 @@ QString configure_font(QString font_name, QStringList sl, int size,
   QFontDatabase database;
   QString str;
   QFont *f;
+  QString style;
+
+  if (bold) {
+    style = "Bold";
+  }
 
   foreach (str, sl)  {
-    if (database.families().contains(str)) {
+    QList<int> sizes = database.smoothSizes(str, style);
+
+    if (!sizes.isEmpty()) {
+      QListIterator<int> i(sizes);
+      int lower = -1;
+      int upper = -1;
       QByteArray fn_bytes;
 
+      while (i.hasNext()) {
+        int cur = i.next();
+
+        if (cur <= size && lower < cur) {
+          lower = cur;
+        }
+        if (cur >= size && (upper < 0 || upper > cur)) {
+          upper = cur;
+        }
+      }
+
+      if (size - lower > upper - size) {
+        size = upper;
+      } else {
+        size = lower;
+      }
+
       f = new QFont(str, size);
       if (bold) {
         f->setBold(true);
-- 
2.35.1