122 lines
		
	
	
	
		
			2.6 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			122 lines
		
	
	
	
		
			2.6 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#pragma once
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class Painter;
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namespace style {
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struct DialogRow;
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} // namespace style
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namespace Data {
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class Forum;
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class ForumTopic;
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} // namespace Data
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namespace Ui {
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class RippleAnimation;
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} // namespace Ui
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namespace Dialogs::Ui {
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using namespace ::Ui;
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struct PaintContext;
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struct TopicJumpCache;
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struct TopicJumpCorners;
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struct JumpToLastBg {
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	not_null<const style::DialogRow*> st;
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	not_null<TopicJumpCorners*> corners;
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	QRect geometry;
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	const style::color &bg;
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	int width1 = 0;
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	int width2 = 0;
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};
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struct JumpToLastGeometry {
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	int rightCut = 0;
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	QRect area1;
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	QRect area2;
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	friend inline bool operator==(
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		const JumpToLastGeometry&,
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		const JumpToLastGeometry&) = default;
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};
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JumpToLastGeometry FillJumpToLastBg(QPainter &p, JumpToLastBg context);
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struct JumpToLastPrepared {
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	not_null<const style::DialogRow*> st;
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	not_null<TopicJumpCorners*> corners;
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	const style::color &bg;
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	const JumpToLastGeometry &prepared;
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};
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void FillJumpToLastPrepared(QPainter &p, JumpToLastPrepared context);
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class TopicsView final {
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public:
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	explicit TopicsView(not_null<Data::Forum*> forum);
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	~TopicsView();
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	[[nodiscard]] not_null<Data::Forum*> forum() const {
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		return _forum;
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	}
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	[[nodiscard]] bool prepared() const;
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	void prepare(MsgId frontRootId, Fn<void()> customEmojiRepaint);
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	[[nodiscard]] int jumpToTopicWidth() const;
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	void paint(
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		Painter &p,
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		const QRect &geometry,
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		const PaintContext &context) const;
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	bool changeTopicJumpGeometry(JumpToLastGeometry geometry);
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	void clearTopicJumpGeometry();
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	[[nodiscard]] bool isInTopicJumpArea(int x, int y) const;
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	void addTopicJumpRipple(
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		QPoint origin,
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		not_null<TopicJumpCache*> topicJumpCache,
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		Fn<void()> updateCallback);
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	void paintRipple(
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		QPainter &p,
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		int x,
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		int y,
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		int outerWidth,
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		const QColor *colorOverride) const;
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	void clearRipple();
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	void stopLastRipple();
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	[[nodiscard]] rpl::lifetime &lifetime() {
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		return _lifetime;
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	}
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private:
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	struct Title {
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		Text::String title;
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		MsgId topicRootId = 0;
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		int version = -1;
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		bool unread = false;
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	};
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	[[nodiscard]] QImage topicJumpRippleMask(
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		not_null<TopicJumpCache*> topicJumpCache) const;
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	const not_null<Data::Forum*> _forum;
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	mutable std::vector<Title> _titles;
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	mutable std::unique_ptr<RippleAnimation> _ripple;
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	JumpToLastGeometry _lastTopicJumpGeometry;
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	int _version = -1;
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	bool _jumpToTopic = false;
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	rpl::lifetime _lifetime;
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};
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} // namespace Dialogs::Ui
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