Implement nice unique gifts in the list.

Telegram/SourceFiles/history/view/media/history_view_unique_gift.cpp

@@ -469,7 +469,7 @@ auto GenerateUniqueGiftMedia(
 				st::chatUniqueButtonPadding,
 				[=] { parent->repaint(); },
 				std::move(link),
-				gift->backdrop.patternColor));
+				anim::with_alpha(gift->backdrop.patternColor, 0.75)));
 		}
 	};
 }

Telegram/SourceFiles/info/peer_gifts/info_peer_gifts_common.cpp

@@ -7,6 +7,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 */
 #include "info/peer_gifts/info_peer_gifts_common.h"
 
+#include "boxes/star_gift_box.h"
 #include "boxes/sticker_set_box.h"
 #include "chat_helpers/stickers_gift_box_pack.h"
 #include "chat_helpers/stickers_lottie.h"
@@ -86,12 +87,16 @@ void GiftButton::setDescriptor(const GiftDescriptor &descriptor) {
 			{ 1., st::windowActiveTextFg->c },
 		});
 	}, [&](const GiftTypeStars &data) {
+		const auto unique = data.info.unique.get();
 		const auto soldOut = data.info.limitedCount
 			&& !data.userpic
 			&& !data.info.limitedLeft;
 		_price.setMarkedText(
 			st::semiboldTextStyle,
-			_delegate->star().append(' ' + QString::number(data.info.stars)),
+			(unique
+				? tr::lng_gift_price_unique(tr::now, Ui::Text::WithEntities)
+				: _delegate->star().append(
+					' ' + QString::number(data.info.stars))),
 			kMarkupTextOptions,
 			_delegate->textContext());
 		_userpic = !data.userpic
@@ -99,7 +104,13 @@ void GiftButton::setDescriptor(const GiftDescriptor &descriptor) {
 			: data.from
 			? Ui::MakeUserpicThumbnail(data.from)
 			: Ui::MakeHiddenAuthorThumbnail();
-		if (soldOut) {
+		if (unique) {
+			const auto white = QColor(255, 255, 255);
+			_stars.setColorOverride(QGradientStops{
+				{ 0., anim::with_alpha(white, .3) },
+				{ 1., white },
+			});
+		} else if (soldOut) {
 			_stars.setColorOverride(QGradientStops{
 				{ 0., Qt::transparent },
 				{ 1., Qt::transparent },
@@ -187,8 +198,61 @@ void GiftButton::resizeEvent(QResizeEvent *e) {
 	}
 }
 
+void GiftButton::cacheUniqueBackground(
+		not_null<Data::UniqueGift*> unique,
+		int width,
+		int height) {
+	if (!_uniquePatternEmoji) {
+		_uniquePatternEmoji = _delegate->buttonPatternEmoji(unique, [=] {
+			update();
+		});
+		[[maybe_unused]] const auto preload = _uniquePatternEmoji->ready();
+	}
+	const auto outer = QRect(0, 0, width, height);
+	const auto inner = outer.marginsRemoved(
+		_extend
+	).translated(-_extend.left(), -_extend.top());
+	const auto ratio = style::DevicePixelRatio();
+	if (_uniqueBackgroundCache.size() != inner.size() * ratio) {
+		_uniqueBackgroundCache = QImage(
+			inner.size() * ratio,
+			QImage::Format_ARGB32_Premultiplied);
+		_uniqueBackgroundCache.fill(Qt::transparent);
+		_uniqueBackgroundCache.setDevicePixelRatio(ratio);
+
+		const auto radius = st::giftBoxGiftRadius;
+		auto p = QPainter(&_uniqueBackgroundCache);
+		auto hq = PainterHighQualityEnabler(p);
+		auto gradient = QRadialGradient(inner.center(), inner.width() / 2);
+		gradient.setStops({
+			{ 0., unique->backdrop.centerColor },
+			{ 1., unique->backdrop.edgeColor },
+		});
+		p.setBrush(gradient);
+		p.setPen(Qt::NoPen);
+		p.drawRoundedRect(inner, radius, radius);
+		_patterned = false;
+	}
+	if (!_patterned && _uniquePatternEmoji->ready()) {
+		_patterned = true;
+		auto p = QPainter(&_uniqueBackgroundCache);
+		p.setOpacity(0.5);
+		p.setClipRect(inner);
+		const auto skip = inner.width() / 3;
+		Ui::PaintPoints(
+			p,
+			_uniquePatternCache,
+			_uniquePatternEmoji.get(),
+			*unique,
+			QRect(-skip, 0, inner.width() + 2 * skip, inner.height()));
+	}
+}
+
 void GiftButton::paintEvent(QPaintEvent *e) {
 	auto p = QPainter(this);
+	const auto unique = v::is<GiftTypeStars>(_descriptor)
+		? v::get<GiftTypeStars>(_descriptor).info.unique.get()
+		: nullptr;
 	const auto hidden = v::is<GiftTypeStars>(_descriptor)
 		&& v::get<GiftTypeStars>(_descriptor).hidden;;
 	const auto position = QPoint(_extend.left(), _extend.top());
@@ -214,6 +278,10 @@ void GiftButton::paintEvent(QPaintEvent *e) {
 			background,
 			QRect(half, 0, 1, height));
 	}
+	if (unique) {
+		cacheUniqueBackground(unique, width, background.height() / dpr);
+		p.drawImage(_extend.left(), _extend.top(), _uniqueBackgroundCache);
+	}
 
 	if (_userpic) {
 		if (!_subscribed) {
@@ -280,7 +348,9 @@ void GiftButton::paintEvent(QPaintEvent *e) {
 	}, [&](const GiftTypeStars &data) {
 		if (const auto count = data.info.limitedCount) {
 			const auto soldOut = !data.userpic && !data.info.limitedLeft;
-			p.setBrush(soldOut
+			p.setBrush(unique
+				? QBrush(unique->backdrop.patternColor)
+				: soldOut
 				? st::attentionButtonFg
 				: st::windowActiveTextFg);
 			return soldOut
@@ -311,13 +381,17 @@ void GiftButton::paintEvent(QPaintEvent *e) {
 		p.rotate(45.);
 		p.translate(-pos);
 		p.drawRect(-5 * twidth, position.y(), twidth * 12, font->height);
-		p.setPen(st::windowBg);
+		p.setPen(unique ? QPen(QColor(255, 255, 255)) : st::windowBg);
 		p.drawText(pos - QPoint(0, font->descent), text);
 		p.restore();
 	}
-	p.setBrush(premium ? st::lightButtonBgOver : st::creditsBg3);
+	p.setBrush(unique
+		? QBrush(QColor(255, 255, 255, .2 * 255))
+		: premium
+		? st::lightButtonBgOver
+		: st::creditsBg3);
 	p.setPen(Qt::NoPen);
-	if (!premium) {
+	if (!unique && !premium) {
 		p.setOpacity(0.12);
 	}
 	const auto geometry = _button;
@@ -326,7 +400,9 @@ void GiftButton::paintEvent(QPaintEvent *e) {
 	if (!premium) {
 		p.setOpacity(1.);
 	}
-	{
+	if (unique) {
+		_stars.paint(p);
+	} else {
 		auto clipPath = QPainterPath();
 		clipPath.addRoundedRect(geometry, radius, radius);
 		p.setClipPath(clipPath);
@@ -345,7 +421,11 @@ void GiftButton::paintEvent(QPaintEvent *e) {
 	}
 
 	const auto padding = st::giftBoxButtonPadding;
-	p.setPen(premium ? st::windowActiveTextFg : st::creditsFg);
+	p.setPen(unique
+		? QPen(QColor(255, 255, 255))
+		: premium
+		? st::windowActiveTextFg
+		: st::creditsFg);
 	_price.draw(p, {
 		.position = (geometry.topLeft()
 			+ QPoint(padding.left(), padding.top())),
@@ -394,6 +474,16 @@ QMargins Delegate::buttonExtend() {
 	return st::defaultDropdownMenu.wrap.shadow.extend;
 }
 
+auto Delegate::buttonPatternEmoji(
+	not_null<Data::UniqueGift*> unique,
+	Fn<void()> repaint)
+-> std::unique_ptr<Ui::Text::CustomEmoji> {
+	return _window->session().data().customEmojiManager().create(
+		unique->pattern.document,
+		repaint,
+		Data::CustomEmojiSizeTag::Large);
+}
+
 QImage Delegate::background() {
 	if (!_bg.isNull()) {
 		return _bg;

Telegram/SourceFiles/info/peer_gifts/info_peer_gifts_common.h

@@ -14,6 +14,10 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 
 class StickerPremiumMark;
 
+namespace Data {
+struct UniqueGift;
+} // namespace Data
+
 namespace HistoryView {
 class StickerPlayer;
 } // namespace HistoryView
@@ -26,6 +30,10 @@ namespace Ui {
 class DynamicImage;
 } // namespace Ui
 
+namespace Ui::Text {
+class CustomEmoji;
+} // namespace Ui::Text
+
 namespace Window {
 class SessionController;
 } // namespace Window
@@ -69,6 +77,10 @@ public:
 	[[nodiscard]] virtual std::any textContext() = 0;
 	[[nodiscard]] virtual QSize buttonSize() = 0;
 	[[nodiscard]] virtual QMargins buttonExtend() = 0;
+	[[nodiscard]] virtual auto buttonPatternEmoji(
+		not_null<Data::UniqueGift*> unique,
+		Fn<void()> repaint)
+	-> std::unique_ptr<Ui::Text::CustomEmoji> = 0;
 	[[nodiscard]] virtual QImage background() = 0;
 	[[nodiscard]] virtual rpl::producer<not_null<DocumentData*>> sticker(
 		const GiftDescriptor &descriptor) = 0;
@@ -87,6 +99,11 @@ private:
 	void paintEvent(QPaintEvent *e) override;
 	void resizeEvent(QResizeEvent *e) override;
 
+	void cacheUniqueBackground(
+		not_null<Data::UniqueGift*> unique,
+		int width,
+		int height);
+
 	void setDocument(not_null<DocumentData*> document);
 	[[nodiscard]] bool documentResolved() const;
 
@@ -98,8 +115,12 @@ private:
 	Ui::Text::String _text;
 	Ui::Text::String _price;
 	std::shared_ptr<Ui::DynamicImage> _userpic;
+	QImage _uniqueBackgroundCache;
+	std::unique_ptr<Ui::Text::CustomEmoji> _uniquePatternEmoji;
+	base::flat_map<float64, QImage> _uniquePatternCache;
 	Ui::Premium::ColoredMiniStars _stars;
 	bool _subscribed = false;
+	bool _patterned = false;
 
 	QRect _button;
 	QMargins _extend;
@@ -119,6 +140,10 @@ public:
 	std::any textContext() override;
 	QSize buttonSize() override;
 	QMargins buttonExtend() override;
+	auto buttonPatternEmoji(
+		not_null<Data::UniqueGift*> unique,
+		Fn<void()> repaint)
+	-> std::unique_ptr<Ui::Text::CustomEmoji> override;
 	QImage background() override;
 	rpl::producer<not_null<DocumentData*>> sticker(
 		const GiftDescriptor &descriptor) override;