Added list for options of premium gifts.

Telegram/SourceFiles/ui/effects/premium.style

@@ -95,3 +95,15 @@ premiumAccountsLabelRadius: 6;
 premiumAccountsNameTop: 13px;
 premiumAccountsPadding: margins(0px, 20px, 0px, 14px);
 premiumAccountsHeight: 105px;
+
+premiumGiftRowHeight: 56px;
+premiumGiftRowBorderWidth: 2px;
+premiumGiftRowBorderRadius: 9px;
+premiumGiftRowPaddings: margins(19px, 2px, 17px, 2px);
+premiumGiftRowMargins: margins(14px, 0px, 15px, 0px);
+premiumGiftRowSubtitleTop: 7px;
+premiumGiftRowTextLeft: 53px;
+premiumGiftRowBadgeHeight: 18px;
+premiumGiftRowBadgeRadius: 4px;
+premiumGiftRowBadgeMargins: margins(5px, 1px, 5px, 0px);
+

Telegram/SourceFiles/ui/effects/premium_graphics.cpp

@@ -8,6 +8,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "ui/effects/premium_graphics.h"
 
 #include "lang/lang_keys.h"
+#include "ui/abstract_button.h"
 #include "ui/effects/animations.h"
 #include "ui/effects/gradient.h"
 #include "ui/effects/numbers_animation.h"
@@ -22,6 +23,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 #include "styles/style_settings.h"
 #include "styles/style_layers.h"
 #include "styles/style_widgets.h"
+#include "styles/style_window.h"
 
 #include <QtGui/QBrush>
 
@@ -853,6 +855,13 @@ QGradientStops FullHeightGradientStops() {
 	};
 }
 
+QGradientStops GiftGradientStops() {
+	return {
+		{ 0., st::premiumButtonBg1->c },
+		{ 1., st::premiumButtonBg2->c },
+	};
+}
+
 void ShowListBox(
 		not_null<Ui::GenericBox*> box,
 		std::vector<ListEntry> entries) {
@@ -925,5 +934,152 @@ void ShowListBox(
 	box->setWidth(st::boxWideWidth);
 }
 
+void AddGiftOptions(
+		not_null<Ui::VerticalLayout*> parent,
+		std::shared_ptr<Ui::RadiobuttonGroup> group,
+		std::vector<GiftInfo> gifts) {
+
+	struct Edges {
+		Ui::RpWidget *top = nullptr;
+		Ui::RpWidget *bottom = nullptr;
+	};
+	const auto edges = parent->lifetime().make_state<Edges>();
+	struct Animation {
+		int nowIndex = 0;
+		Ui::Animations::Simple animation;
+	};
+	const auto animation = parent->lifetime().make_state<Animation>();
+
+	const auto stops = GiftGradientStops();
+
+	const auto addRow = [&](const GiftInfo &info, int index) {
+		const auto row = parent->add(
+			object_ptr<Ui::AbstractButton>(parent),
+			st::premiumGiftRowPaddings);
+		row->resize(row->width(), st::premiumGiftRowHeight);
+		{
+			if (!index) {
+				edges->top = row;
+			}
+			edges->bottom = row;
+		}
+
+		const auto &stCheckbox = st::defaultBoxCheckbox;
+		const auto radio = Ui::CreateChild<Ui::Radiobutton>(
+			row,
+			group,
+			index,
+			QString(),
+			stCheckbox);
+		radio->setAttribute(Qt::WA_TransparentForMouseEvents);
+
+		row->sizeValue(
+		) | rpl::start_with_next([=, margins = stCheckbox.margin](
+				const QSize &s) {
+			const auto radioHeight = radio->height()
+				- margins.top()
+				- margins.bottom();
+			radio->moveToLeft(
+				st::premiumGiftRowMargins.left(),
+				(s.height() - radioHeight) / 2);
+		}, radio->lifetime());
+
+		row->paintRequest(
+		) | rpl::start_with_next([=](const QRect &r) {
+			Painter p(row);
+			PainterHighQualityEnabler hq(p);
+
+			p.fillRect(r, Qt::transparent);
+
+			const auto left = st::premiumGiftRowTextLeft;
+			const auto borderWidth = st::premiumGiftRowBorderWidth;
+			const auto halfHeight = row->height() / 2;
+
+			const auto titleFont = st::semiboldFont;
+			p.setFont(titleFont);
+			p.setPen(st::boxTextFg);
+			p.drawText(
+				left,
+				st::premiumGiftRowSubtitleTop + titleFont->ascent,
+				info.duration);
+
+			const auto discountFont = st::windowFiltersButton.badgeStyle.font;
+			const auto discountWidth = discountFont->width(info.discount);
+			const auto &discountMargins = st::premiumGiftRowBadgeMargins;
+			const auto discountRect = QRect(
+				left,
+				halfHeight + discountMargins.top(),
+				discountWidth
+					+ discountMargins.left()
+					+ discountMargins.right(),
+				st::premiumGiftRowBadgeHeight);
+			{
+				const auto from = edges->top->y();
+				const auto to = edges->bottom->y() + edges->bottom->height();
+				auto partialGradient = PartialGradient(from, to, stops);
+
+				p.setPen(Qt::NoPen);
+				p.setBrush(partialGradient.compute(row->y(), row->height()));
+				const auto round = st::premiumGiftRowBadgeRadius;
+				p.drawRoundedRect(discountRect, round, round);
+			}
+
+			if (animation->nowIndex == index) {
+				const auto progress = animation->animation.value(1.);
+				const auto w = row->width();
+				auto gradient = QLinearGradient(w - w * progress, 0, w * 2, 0);
+				gradient.setSpread(QGradient::Spread::RepeatSpread);
+				gradient.setStops(stops);
+				const auto pen = QPen(QBrush(gradient), borderWidth);
+				p.setPen(pen);
+				p.setBrush(Qt::NoBrush);
+				const auto borderRect = row->rect()
+					- QMargins(
+						pen.width() / 2,
+						pen.width() / 2,
+						pen.width() / 2,
+						pen.width() / 2);
+				const auto round = st::premiumGiftRowBorderRadius;
+				p.drawRoundedRect(borderRect, round, round);
+			}
+
+			p.setPen(st::boxBg);
+			p.setFont(discountFont);
+			p.drawText(discountRect, info.discount, style::al_center);
+
+			const auto perRect = QMargins(0, 0, row->width(), 0)
+				+ discountRect.translated(
+					discountRect.width() + discountMargins.left(),
+					0);
+			p.setPen(st::windowSubTextFg);
+			p.setFont(st::shareBoxListItem.nameStyle.font);
+			p.drawText(perRect, info.perMonth, style::al_left);
+
+			const auto totalRect = row->rect()
+				- QMargins(0, 0, st::premiumGiftRowMargins.right(), 0);
+			p.setFont(st::normalFont);
+			p.drawText(totalRect, info.total, style::al_right);
+		}, row->lifetime());
+
+		row->setClickedCallback([=, duration = st::defaultCheck.duration] {
+			group->setValue(index);
+			animation->nowIndex = group->value();
+			animation->animation.stop();
+			animation->animation.start(
+				[=] { parent->update(); },
+				0.,
+				1.,
+				duration);
+		});
+
+	};
+	for (auto i = 0; i < gifts.size(); i++) {
+		addRow(gifts[i], i);
+	}
+
+	parent->resizeToWidth(parent->height());
+	parent->update();
+}
+
 } // namespace Premium
 } // namespace Ui

Telegram/SourceFiles/ui/effects/premium_graphics.h

@@ -29,6 +29,13 @@ class VerticalLayout;
 
 namespace Premium {
 
+struct GiftInfo {
+	QString duration;
+	QString discount;
+	QString perMonth;
+	QString total;
+};
+
 void AddBubbleRow(
 	not_null<Ui::VerticalLayout*> parent,
 	rpl::producer<> showFinishes,
@@ -70,6 +77,7 @@ void AddAccountsRow(
 [[nodiscard]] QGradientStops ButtonGradientStops();
 [[nodiscard]] QGradientStops LockGradientStops();
 [[nodiscard]] QGradientStops FullHeightGradientStops();
+[[nodiscard]] QGradientStops GiftGradientStops();
 
 struct ListEntry final {
 	rpl::producer<QString> subtitle;
@@ -82,5 +90,10 @@ void ShowListBox(
 	not_null<Ui::GenericBox*> box,
 	std::vector<ListEntry> entries);
 
+void AddGiftOptions(
+	not_null<Ui::VerticalLayout*> parent,
+	std::shared_ptr<Ui::RadiobuttonGroup> group,
+	std::vector<GiftInfo> gifts);
+
 } // namespace Premium
 } // namespace Ui