123 lines
		
	
	
	
		
			2.8 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			123 lines
		
	
	
	
		
			2.8 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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#include "ui/layers/box_content.h"
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#include "ui/widgets/tooltip.h"
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#include "base/required.h"
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#include "base/timer.h"
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#include <QtCore/QDate>
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namespace style {
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struct CalendarSizes;
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struct CalendarColors;
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} // namespace style
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namespace st {
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extern const style::CalendarSizes &defaultCalendarSizes;
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extern const style::CalendarColors &defaultCalendarColors;
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} // namespace st
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namespace Ui {
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class IconButton;
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class ScrollArea;
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class CalendarBox;
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struct CalendarBoxArgs {
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	template <typename T>
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	using required = base::required<T>;
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	required<QDate> month;
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	required<QDate> highlighted;
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	required<Fn<void(QDate date)>> callback;
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	FnMut<void(not_null<CalendarBox*>)> finalize;
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	const style::CalendarSizes &st = st::defaultCalendarSizes;
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	QDate minDate;
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	QDate maxDate;
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	bool allowsSelection = false;
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	Fn<void(
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		not_null<Ui::CalendarBox*>,
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		std::optional<int>)> selectionChanged;
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	const style::CalendarColors &stColors = st::defaultCalendarColors;
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};
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class CalendarBox final : public BoxContent, private AbstractTooltipShower {
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public:
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	CalendarBox(QWidget*, CalendarBoxArgs &&args);
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	~CalendarBox();
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	void toggleSelectionMode(bool enabled);
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	[[nodiscard]] QDate selectedFirstDate() const;
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	[[nodiscard]] QDate selectedLastDate() const;
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protected:
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	void prepare() override;
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	void keyPressEvent(QKeyEvent *e) override;
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	void resizeEvent(QResizeEvent *e) override;
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private:
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	void monthChanged(QDate month);
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	bool isPreviousEnabled() const;
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	bool isNextEnabled() const;
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	void goPreviousMonth();
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	void goNextMonth();
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	void setExactScroll();
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	void processScroll();
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	void createButtons();
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	void showJumpTooltip(not_null<IconButton*> button);
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	void jumpAfterDelay(not_null<IconButton*> button);
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	void jump(QPointer<IconButton> button);
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	QString tooltipText() const override;
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	QPoint tooltipPos() const override;
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	bool tooltipWindowActive() const override;
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	const style::CalendarSizes &_st;
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	const style::CalendarColors &_styleColors;
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	class Context;
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	std::unique_ptr<Context> _context;
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	std::unique_ptr<ScrollArea> _scroll;
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	class Inner;
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	not_null<Inner*> _inner;
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	class FloatingDate;
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	std::unique_ptr<FloatingDate> _floatingDate;
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	class Title;
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	object_ptr<Title> _title;
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	object_ptr<IconButton> _previous;
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	object_ptr<IconButton> _next;
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	bool _previousEnabled = false;
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	bool _nextEnabled = false;
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	Fn<void(QDate date)> _callback;
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	FnMut<void(not_null<CalendarBox*>)> _finalize;
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	bool _watchScroll = false;
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	QPointer<IconButton> _tooltipButton;
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	QPointer<IconButton> _jumpButton;
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	base::Timer _jumpTimer;
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	bool _selectionMode = false;
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	Fn<void(
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		not_null<Ui::CalendarBox*>,
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		std::optional<int>)> _selectionChanged;
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};
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} // namespace Ui
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