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Telegram/SourceFiles/ui/effects/premium_bubble.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 "ui/effects/numbers_animation.h"
+#include "ui/effects/ministar_particles.h"
+#include "ui/abstract_button.h"
+#include "ui/rp_widget.h"
+
+enum lngtag_count : int;
+
+namespace tr {
+template <typename ...Tags>
+struct phrase;
+} // namespace tr
+
+namespace style {
+struct PremiumBubble;
+} // namespace style
+
+namespace Ui {
+class VerticalLayout;
+} // namespace Ui
+
+namespace Ui::Premium {
+
+struct BubbleText {
+	QString counter;
+	QString additional;
+};
+
+using TextFactory = Fn<BubbleText(int)>;
+
+[[nodiscard]] TextFactory ProcessTextFactory(
+	std::optional<tr::phrase<lngtag_count>> phrase);
+
+class Bubble final {
+public:
+	using EdgeProgress = float64;
+
+	Bubble(
+		const style::PremiumBubble &st,
+		Fn<void()> updateCallback,
+		TextFactory textFactory,
+		const style::icon *icon,
+		bool hasTail);
+
+	[[nodiscard]] static crl::time SlideNoDeflectionDuration();
+
+	[[nodiscard]] std::optional<int> counter() const;
+	[[nodiscard]] int height() const;
+	[[nodiscard]] int width() const;
+	[[nodiscard]] int bubbleRadius() const;
+	[[nodiscard]] int countTargetWidth(int targetCounter) const;
+	[[nodiscard]] QRect bubbleGeometry(const QRect &r) const;
+
+	void setCounter(int value);
+	void setTailEdge(EdgeProgress edge);
+	void setFlipHorizontal(bool value);
+	void paintBubble(QPainter &p, const QRect &r, const QBrush &brush);
+	[[nodiscard]] QPainterPath bubblePath(const QRect &r) const;
+	void setSubtext(QString subtext);
+
+	void finishAnimating();
+
+	[[nodiscard]] rpl::producer<> widthChanges() const;
+
+private:
+	[[nodiscard]] int filledWidth() const;
+	[[nodiscard]] int topTextWidth() const;
+	[[nodiscard]] int bottomTextWidth() const;
+
+	const style::PremiumBubble &_st;
+
+	const Fn<void()> _updateCallback;
+	const TextFactory _textFactory;
+
+	const style::icon *_icon;
+	NumbersAnimation _numberAnimation;
+	Text::String _additional;
+	Text::String _subtext;
+	const int _height;
+	const bool _hasTail;
+
+	std::optional<int> _counter;
+	EdgeProgress _tailEdge = 0.;
+	bool _flipHorizontal = false;
+
+	rpl::event_stream<> _widthChanges;
+
+};
+
+struct BubbleRowState {
+	int counter = 0;
+	float64 ratio = 0.;
+	bool animateFromZero = false;
+	bool dynamic = false;
+};
+
+enum class BubbleType : uchar {
+	UpgradePrice,
+	StarRating,
+	NegativeRating,
+	NoPremium,
+	Premium,
+	Credits,
+};
+
+class BubbleWidget final : public Ui::AbstractButton {
+public:
+	BubbleWidget(
+		not_null<Ui::RpWidget*> parent,
+		const style::PremiumBubble &st,
+		TextFactory textFactory,
+		rpl::producer<BubbleRowState> state,
+		BubbleType type,
+		rpl::producer<> showFinishes,
+		const style::icon *icon,
+		const style::margins &outerPadding);
+
+	void setBrushOverride(std::optional<QBrush> brushOverride);
+	void setSubtext(QString subtext);
+
+protected:
+	void paintEvent(QPaintEvent *e) override;
+	void resizeEvent(QResizeEvent *e) override;
+
+private:
+	void setupParticles(not_null<Ui::RpWidget*> parent);
+
+	struct GradientParams {
+		int left = 0;
+		int width = 0;
+		int outer = 0;
+
+		friend inline constexpr bool operator==(
+			GradientParams,
+			GradientParams) = default;
+	};
+	void animateTo(BubbleRowState state);
+
+	const style::PremiumBubble &_st;
+	BubbleRowState _animatingFrom;
+	float64 _animatingFromResultRatio = 0.;
+	float64 _animatingFromBubbleEdge = 0.;
+	rpl::variable<BubbleRowState> _state;
+	Bubble _bubble;
+	std::optional<QBrush> _brushOverride;
+	const BubbleType _type;
+	const style::margins _outerPadding;
+
+	Ui::Animations::Simple _appearanceAnimation;
+	Fn<void(float64)> _appearanceCallback;
+	QSize _spaceForDeflection;
+
+	QLinearGradient _cachedGradient;
+	std::optional<GradientParams> _cachedGradientParams;
+
+	float64 _deflection;
+
+	bool _ignoreDeflection = false;
+	float64 _stepBeforeDeflection;
+	float64 _stepAfterDeflection;
+
+	RpWidget *_particlesWidget = nullptr;
+	std::optional<StarParticles> _particles;
+	Ui::Animations::Basic _particlesAnimation;
+
+};
+
+not_null<BubbleWidget*> AddBubbleRow(
+	not_null<Ui::VerticalLayout*> parent,
+	const style::PremiumBubble &st,
+	rpl::producer<> showFinishes,
+	int min,
+	int current,
+	int max,
+	BubbleType type,
+	std::optional<tr::phrase<lngtag_count>> phrase,
+	const style::icon *icon);
+
+not_null<BubbleWidget*> AddBubbleRow(
+	not_null<Ui::VerticalLayout*> parent,
+	const style::PremiumBubble &st,
+	rpl::producer<> showFinishes,
+	rpl::producer<BubbleRowState> state,
+	BubbleType type,
+	TextFactory text,
+	const style::icon *icon,
+	const style::margins &outerPadding);
+
+} // namespace Ui::Premium