From 770b5d0e59ab6d428e234b3773679de8261477ee Mon Sep 17 00:00:00 2001
From: John Preston <johnprestonmail@gmail.com>
Date: Thu, 15 Dec 2022 19:10:04 +0400
Subject: [PATCH] Allow using text color -> preview color algo outside.

---
 ui/text/custom_emoji_instance.cpp | 9 ++++++---
 ui/text/custom_emoji_instance.h   | 2 ++
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/ui/text/custom_emoji_instance.cpp b/ui/text/custom_emoji_instance.cpp
index 2b25cbc..bac989b 100644
--- a/ui/text/custom_emoji_instance.cpp
+++ b/ui/text/custom_emoji_instance.cpp
@@ -89,6 +89,11 @@ void PaintScaledImage(
 
 } // namespace
 
+QColor PreviewColorFromTextColor(QColor color) {
+	color.setAlpha((color.alpha() + 1) / 8);
+	return color;
+}
+
 Preview::Preview(QPainterPath path, float64 scale)
 : _data(ScaledPath{ std::move(path), scale }) {
 }
@@ -131,9 +136,7 @@ void Preview::paintPath(
 		const Context &context,
 		const ScaledPath &path) {
 	auto hq = PainterHighQualityEnabler(p);
-	auto copy = context.textColor.value();
-	copy.setAlpha((copy.alpha() + 1) / 8);
-	p.setBrush(copy);
+	p.setBrush(PreviewColorFromTextColor(context.textColor));
 	p.setPen(Qt::NoPen);
 	const auto scale = path.scale;
 	const auto required = (scale != 1.) || context.scaled;
diff --git a/ui/text/custom_emoji_instance.h b/ui/text/custom_emoji_instance.h
index 4d65ec0..c86010e 100644
--- a/ui/text/custom_emoji_instance.h
+++ b/ui/text/custom_emoji_instance.h
@@ -25,6 +25,8 @@ namespace Ui::CustomEmoji {
 
 using Context = Ui::Text::CustomEmoji::Context;
 
+[[nodiscard]] QColor PreviewColorFromTextColor(QColor color);
+
 class Preview final {
 public:
 	Preview() = default;