From f34835463d4ddf1a32e6636402f8292b963061bf Mon Sep 17 00:00:00 2001
From: 23rd <23rd@vivaldi.net>
Date: Sun, 13 Apr 2025 18:53:37 +0300
Subject: [PATCH] Added initial ability to create credit icon as non-session
 custom emoji.

---
 .../ui/effects/credits_graphics.cpp           | 56 +++++++++++++++++++
 .../SourceFiles/ui/effects/credits_graphics.h |  8 +++
 2 files changed, 64 insertions(+)

diff --git a/Telegram/SourceFiles/ui/effects/credits_graphics.cpp b/Telegram/SourceFiles/ui/effects/credits_graphics.cpp
index 0fbf095cce..64f21566e3 100644
--- a/Telegram/SourceFiles/ui/effects/credits_graphics.cpp
+++ b/Telegram/SourceFiles/ui/effects/credits_graphics.cpp
@@ -26,6 +26,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "ui/empty_userpic.h"
 #include "ui/painter.h"
 #include "ui/rect.h"
+#include "ui/text/text_custom_emoji.h"
 #include "ui/widgets/fields/number_input.h"
 #include "ui/wrap/padding_wrap.h"
 #include "ui/wrap/vertical_layout.h"
@@ -42,6 +43,55 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 namespace Ui {
 namespace {
 
+class CreditsIconEmoji final : public Ui::Text::CustomEmoji {
+public:
+	CreditsIconEmoji(int height, int count);
+
+	int width() override;
+	QString entityData() override;
+
+	void paint(QPainter &p, const Context &context) override;
+	void unload() override;
+	bool ready() override;
+	bool readyInDefaultState() override;
+
+private:
+	const int _height;
+	const int _count;
+	QImage _image;
+
+};
+
+CreditsIconEmoji::CreditsIconEmoji(int height, int count)
+: _height(height)
+, _count(count)
+, _image(GenerateStars(height, count)) {
+}
+
+int CreditsIconEmoji::width() {
+	return _image.width() / style::DevicePixelRatio();
+}
+
+QString CreditsIconEmoji::entityData() {
+	return u"credits_icon:%1:%2"_q.arg(_height).arg(_count);
+}
+
+void CreditsIconEmoji::paint(QPainter &p, const Context &context) {
+	p.drawImage(context.position, _image);
+}
+
+void CreditsIconEmoji::unload() {
+	_image = QImage();
+}
+
+bool CreditsIconEmoji::ready() {
+	return true;
+}
+
+bool CreditsIconEmoji::readyInDefaultState() {
+	return true;
+}
+
 PaintRoundImageCallback MultiThumbnail(
 		PaintRoundImageCallback first,
 		PaintRoundImageCallback second,
@@ -678,4 +728,10 @@ QImage CreditsWhiteDoubledIcon(int size, float64 outlineRatio) {
 	return result;
 }
 
+std::unique_ptr<Ui::Text::CustomEmoji> MakeCreditsIconEmoji(
+		int height,
+		int count) {
+	return std::make_unique<CreditsIconEmoji>(height, count);
+}
+
 } // namespace Ui
diff --git a/Telegram/SourceFiles/ui/effects/credits_graphics.h b/Telegram/SourceFiles/ui/effects/credits_graphics.h
index a304a9ff5f..022c7cac80 100644
--- a/Telegram/SourceFiles/ui/effects/credits_graphics.h
+++ b/Telegram/SourceFiles/ui/effects/credits_graphics.h
@@ -19,6 +19,10 @@ namespace Main {
 class Session;
 } // namespace Main
 
+namespace Ui::Text {
+class CustomEmoji;
+} // namespace Ui::Text
+
 namespace Ui {
 
 class MaskedInputField;
@@ -82,4 +86,8 @@ Fn<void(QPainter &)> PaintOutlinedColoredCreditsIconCallback(
 
 [[nodiscard]] QImage CreditsWhiteDoubledIcon(int size, float64 outlineRatio);
 
+std::unique_ptr<Ui::Text::CustomEmoji> MakeCreditsIconEmoji(
+	int height,
+	int count);
+
 } // namespace Ui