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Telegram/SourceFiles/ui/effects/premium_top_bar.h

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+/*
+This file is part of Telegram Desktop,
+the official desktop application for the Telegram messaging service.
+
+For license and copyright information please follow this link:
+https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
+*/
+#pragma once
+
+#include "base/object_ptr.h"
+#include "ui/rp_widget.h"
+#include "ui/effects/premium_stars_colored.h"
+
+namespace style {
+struct PremiumCover;
+} // namespace style
+
+namespace st {
+extern const style::PremiumCover &defaultPremiumCover;
+} // namespace st
+
+namespace Ui {
+class FlatLabel;
+} // namespace Ui
+
+namespace Lottie {
+class Icon;
+} // namespace Lottie
+
+namespace Ui::Premium {
+
+class TopBarAbstract : public RpWidget {
+public:
+	TopBarAbstract(
+		QWidget *parent = nullptr,
+		const style::PremiumCover &st = st::defaultPremiumCover);
+
+	void setRoundEdges(bool value);
+
+	virtual void setPaused(bool paused) = 0;
+	virtual void setTextPosition(int x, int y) = 0;
+
+	[[nodiscard]] virtual rpl::producer<int> additionalHeight() const = 0;
+
+	[[nodiscard]] const style::PremiumCover &st() const {
+		return _st;
+	}
+
+protected:
+	void paintEdges(QPainter &p, const QBrush &brush) const;
+	void paintEdges(QPainter &p) const;
+
+	[[nodiscard]] QRectF starRect(
+		float64 topProgress,
+		float64 sizeProgress) const;
+
+	[[nodiscard]] bool isDark() const;
+	void computeIsDark();
+
+private:
+	const style::PremiumCover &_st;
+	bool _roundEdges = true;
+	bool _isDark = false;
+
+};
+
+struct TopBarDescriptor {
+	Fn<QVariant()> clickContextOther;
+	QString logo;
+	rpl::producer<QString> title;
+	rpl::producer<TextWithEntities> about;
+	bool light = false;
+	bool optimizeMinistars = true;
+	std::optional<QGradientStops> gradientStops;
+};
+
+class TopBar final : public TopBarAbstract {
+public:
+	TopBar(
+		not_null<QWidget*> parent,
+		const style::PremiumCover &st,
+		TopBarDescriptor &&descriptor);
+	~TopBar();
+
+	void setPaused(bool paused) override;
+	void setTextPosition(int x, int y) override;
+
+	rpl::producer<int> additionalHeight() const override;
+
+protected:
+	void paintEvent(QPaintEvent *e) override;
+	void resizeEvent(QResizeEvent *e) override;
+
+private:
+	const bool _light = false;
+	const QString _logo;
+	const style::font &_titleFont;
+	const style::margins &_titlePadding;
+	const int _aboutMaxWidth = 0;
+	object_ptr<FlatLabel> _about;
+	ColoredMiniStars _ministars;
+	QSvgRenderer _star;
+	QImage _dollar;
+	std::unique_ptr<Lottie::Icon> _lottie;
+
+	struct {
+		float64 top = 0.;
+		float64 body = 0.;
+		float64 title = 0.;
+		float64 scaleTitle = 0.;
+	} _progress;
+
+	QRectF _starRect;
+
+	QPoint _titlePosition;
+	QPainterPath _titlePath;
+
+};
+
+} // namespace Ui::Premium