From f5e3d2111399161ff9434997e855da5f35470b4b Mon Sep 17 00:00:00 2001
From: RadRussianRus <radrussianrus@gmail.com>
Date: Tue, 4 Feb 2020 17:57:36 +0300
Subject: [PATCH] Option to use original font metrics

---
 ui/style/style_core_font.cpp | 23 ++++++++++++++++++++---
 ui/style/style_core_font.h   |  1 +
 2 files changed, 21 insertions(+), 3 deletions(-)

diff --git a/ui/style/style_core_font.cpp b/ui/style/style_core_font.cpp
index c753ae9..5c21a90 100644
--- a/ui/style/style_core_font.cpp
+++ b/ui/style/style_core_font.cpp
@@ -171,6 +171,7 @@ QString CustomMainFont;
 QString CustomSemiboldFont;
 bool CustomSemiboldIsBold = false;
 bool UseSystemFont = false;
+bool UseOriginalMetrics = false;
 
 } // namespace
 
@@ -194,6 +195,10 @@ void SetUseSystemFont(bool isSystemFont) {
 	UseSystemFont = isSystemFont;
 }
 
+void SetUseOriginalMetrics(bool isOriginal) {
+	UseOriginalMetrics = isOriginal;
+}
+
 void StartFonts() {
 	if (Started) {
 		return;
@@ -338,9 +343,21 @@ FontData::FontData(int size, uint32 flags, int family, Font *other)
 	}
 
 	m = QFontMetrics(f);
-	height = m.height();
-	ascent = m.ascent();
-	descent = m.descent();
+
+	if (UseOriginalMetrics) {
+		QFont originalFont(fontFamilies[family]);
+		originalFont.setPixelSize(size);
+		auto mOrig = QFontMetrics(originalFont);
+
+		height = mOrig.height();
+		ascent = mOrig.ascent();
+		descent = mOrig.descent();
+	} else {
+		height = m.height();
+		ascent = m.ascent();
+		descent = m.descent();
+	}
+
 	spacew = width(QLatin1Char(' '));
 	elidew = width("...");
 }
diff --git a/ui/style/style_core_font.h b/ui/style/style_core_font.h
index d9cd9b1..f936290 100644
--- a/ui/style/style_core_font.h
+++ b/ui/style/style_core_font.h
@@ -18,6 +18,7 @@ void SetMainFont(const QString &familyName);
 void SetSemiboldFont(const QString &familyName);
 void SetSemiboldIsBold(bool isBold);
 void SetUseSystemFont(bool isSystemFont);
+void SetUseOriginalMetrics(bool isOriginal);
 
 void StartFonts();
 [[nodiscard]] QString GetFontOverride(const QString &familyName, int32 flags = 0);