378 lines
		
	
	
	
		
			8.6 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			378 lines
		
	
	
	
		
			8.6 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
// This file is part of Desktop App Toolkit,
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// a set of libraries for developing nice desktop applications.
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//
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// For license and copyright information please follow this link:
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// https://github.com/desktop-app/legal/blob/master/LEGAL
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//
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#pragma once
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#include "ui/widgets/buttons.h"
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#include "ui/effects/animations.h"
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#include "ui/text/text.h"
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#include "styles/style_widgets.h"
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class Painter;
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namespace Ui {
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class AbstractCheckView {
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public:
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	AbstractCheckView(int duration, bool checked, Fn<void()> updateCallback);
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	void setChecked(bool checked, anim::type animated);
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	void finishAnimating();
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	void setUpdateCallback(Fn<void()> updateCallback);
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	bool checked() const {
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		return _checked;
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	}
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	void update();
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	float64 currentAnimationValue();
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	bool animating() const;
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	auto checkedChanges() const {
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		return _checks.events();
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	}
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	auto checkedValue() const {
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		return _checks.events_starting_with(checked());
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	}
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	virtual QSize getSize() const = 0;
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	virtual void paint(Painter &p, int left, int top, int outerWidth) = 0;
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	virtual QImage prepareRippleMask() const = 0;
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	virtual bool checkRippleStartPosition(QPoint position) const = 0;
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	virtual ~AbstractCheckView() = default;
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private:
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	virtual void checkedChangedHook(anim::type animated) {
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	}
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	int _duration = 0;
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	bool _checked = false;
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	Fn<void()> _updateCallback;
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	Ui::Animations::Simple _toggleAnimation;
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	rpl::event_stream<bool> _checks;
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};
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class CheckView : public AbstractCheckView {
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public:
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	CheckView(
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		const style::Check &st,
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		bool checked,
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		Fn<void()> updateCallback = nullptr);
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	void setStyle(const style::Check &st);
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	QSize getSize() const override;
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	void paint(Painter &p, int left, int top, int outerWidth) override;
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	QImage prepareRippleMask() const override;
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	bool checkRippleStartPosition(QPoint position) const override;
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	void setUntoggledOverride(
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		std::optional<QColor> untoggledOverride);
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private:
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	QSize rippleSize() const;
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	not_null<const style::Check*> _st;
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	std::optional<QColor> _untoggledOverride;
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};
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class RadioView : public AbstractCheckView {
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public:
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	RadioView(
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		const style::Radio &st,
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		bool checked,
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		Fn<void()> updateCallback = nullptr);
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	void setStyle(const style::Radio &st);
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	void setToggledOverride(std::optional<QColor> toggledOverride);
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	void setUntoggledOverride(std::optional<QColor> untoggledOverride);
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	QSize getSize() const override;
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	void paint(Painter &p, int left, int top, int outerWidth) override;
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	QImage prepareRippleMask() const override;
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	bool checkRippleStartPosition(QPoint position) const override;
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private:
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	QSize rippleSize() const;
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	not_null<const style::Radio*> _st;
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	std::optional<QColor> _toggledOverride;
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	std::optional<QColor> _untoggledOverride;
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};
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class ToggleView : public AbstractCheckView {
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public:
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	ToggleView(
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		const style::Toggle &st,
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		bool checked,
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		Fn<void()> updateCallback = nullptr);
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	void setStyle(const style::Toggle &st);
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	QSize getSize() const override;
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	void paint(Painter &p, int left, int top, int outerWidth) override;
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	QImage prepareRippleMask() const override;
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	bool checkRippleStartPosition(QPoint position) const override;
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	void setLocked(bool locked);
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private:
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	void paintXV(Painter &p, int left, int top, int outerWidth, float64 toggled, const QBrush &brush);
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	QSize rippleSize() const;
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	not_null<const style::Toggle*> _st;
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	bool _locked = false;
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};
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class Checkbox : public RippleButton {
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public:
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	Checkbox(
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		QWidget *parent,
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		const QString &text,
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		bool checked = false,
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		const style::Checkbox &st = st::defaultCheckbox,
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		const style::Check &checkSt = st::defaultCheck);
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	Checkbox(
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		QWidget *parent,
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		const QString &text,
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		bool checked,
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		const style::Checkbox &st,
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		const style::Toggle &toggleSt);
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	Checkbox(
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		QWidget *parent,
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		rpl::producer<QString> &&text,
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		bool checked = false,
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		const style::Checkbox &st = st::defaultCheckbox,
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		const style::Check &checkSt = st::defaultCheck);
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	Checkbox(
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		QWidget *parent,
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		rpl::producer<QString> &&text,
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		bool checked,
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		const style::Checkbox &st,
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		const style::Toggle &toggleSt);
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	Checkbox(
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		QWidget *parent,
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		const QString &text,
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		const style::Checkbox &st,
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		std::unique_ptr<AbstractCheckView> check);
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	Checkbox(
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		QWidget *parent,
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		rpl::producer<QString> &&text,
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		const style::Checkbox &st,
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		std::unique_ptr<AbstractCheckView> check);
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	void setText(const QString &text, bool rich = false);
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	void setCheckAlignment(style::align alignment);
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	void setAllowTextLines(int lines = 0);
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	void setTextBreakEverywhere(bool allow = true);
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	bool checked() const;
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	rpl::producer<bool> checkedChanges() const;
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	rpl::producer<bool> checkedValue() const;
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	enum class NotifyAboutChange {
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		Notify,
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		DontNotify,
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	};
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	void setChecked(
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		bool checked,
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		NotifyAboutChange notify = NotifyAboutChange::Notify);
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	void finishAnimating();
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	QMargins getMargins() const override {
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		return _st.margin;
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	}
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	int naturalWidth() const override;
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	void updateCheck() {
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		rtlupdate(checkRect());
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	}
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	QRect checkRect() const;
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protected:
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	void paintEvent(QPaintEvent *e) override;
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	void onStateChanged(State was, StateChangeSource source) override;
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	int resizeGetHeight(int newWidth) override;
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	QImage prepareRippleMask() const override;
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	QPoint prepareRippleStartPosition() const override;
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	virtual void handlePress();
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private:
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	void resizeToText();
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	QPixmap grabCheckCache() const;
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	int countTextMinWidth() const;
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	const style::Checkbox &_st;
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	std::unique_ptr<AbstractCheckView> _check;
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	rpl::event_stream<bool> _checkedChanges;
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	QPixmap _checkCache;
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	Text::String _text;
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	style::align _checkAlignment = style::al_left;
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	int _allowTextLines = 1;
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	bool _textBreakEverywhere = false;
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};
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class Radiobutton;
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class RadiobuttonGroup {
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public:
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	RadiobuttonGroup() = default;
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	RadiobuttonGroup(int value) : _value(value), _hasValue(true) {
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	}
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	void setChangedCallback(Fn<void(int value)> callback) {
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		_changedCallback = std::move(callback);
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	}
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	bool hasValue() const {
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		return _hasValue;
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	}
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	int value() const {
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		return _value;
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	}
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	void setValue(int value);
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private:
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	friend class Radiobutton;
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	void registerButton(Radiobutton *button) {
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		if (!base::contains(_buttons, button)) {
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			_buttons.push_back(button);
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		}
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	}
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	void unregisterButton(Radiobutton *button) {
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		_buttons.erase(std::remove(_buttons.begin(), _buttons.end(), button), _buttons.end());
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	}
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	int _value = 0;
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	bool _hasValue = false;
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	Fn<void(int value)> _changedCallback;
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	std::vector<Radiobutton*> _buttons;
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};
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class Radiobutton : public Checkbox {
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public:
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	Radiobutton(
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		QWidget *parent,
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		const std::shared_ptr<RadiobuttonGroup> &group,
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		int value,
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		const QString &text,
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		const style::Checkbox &st = st::defaultCheckbox,
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		const style::Radio &radioSt = st::defaultRadio);
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	Radiobutton(
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		QWidget *parent,
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		const std::shared_ptr<RadiobuttonGroup> &group,
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		int value,
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		const QString &text,
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		const style::Checkbox &st,
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		std::unique_ptr<AbstractCheckView> check);
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	~Radiobutton();
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protected:
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	void handlePress() override;
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private:
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	// Hide the names from Checkbox.
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	bool checked() const;
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	void checkedChanges() const;
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	void checkedValue() const;
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	void setChecked(bool checked, NotifyAboutChange notify);
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	Checkbox *checkbox() {
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		return this;
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	}
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	const Checkbox *checkbox() const {
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		return this;
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	}
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	friend class RadiobuttonGroup;
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	void handleNewGroupValue(int value);
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	std::shared_ptr<RadiobuttonGroup> _group;
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	int _value = 0;
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};
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template <typename Enum>
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class Radioenum;
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template <typename Enum>
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class RadioenumGroup {
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public:
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	RadioenumGroup() = default;
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	RadioenumGroup(Enum value) : _group(static_cast<int>(value)) {
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	}
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	template <typename Callback>
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	void setChangedCallback(Callback &&callback) {
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		_group.setChangedCallback([callback](int value) {
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			callback(static_cast<Enum>(value));
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		});
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	}
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	bool hasValue() const {
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		return _group.hasValue();
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	}
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	Enum value() const {
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		return static_cast<Enum>(_group.value());
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	}
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	void setValue(Enum value) {
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		_group.setValue(static_cast<int>(value));
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	}
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private:
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	template <typename OtherEnum>
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	friend class Radioenum;
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	RadiobuttonGroup _group;
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};
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template <typename Enum>
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class Radioenum : public Radiobutton {
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public:
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	Radioenum(
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		QWidget *parent,
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		const std::shared_ptr<RadioenumGroup<Enum>> &group,
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		Enum value,
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		const QString &text,
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		const style::Checkbox &st = st::defaultCheckbox)
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	: Radiobutton(
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		parent,
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		std::shared_ptr<RadiobuttonGroup>(group, &group->_group),
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		static_cast<int>(value),
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		text,
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		st) {
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	}
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	Radioenum(
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		QWidget *parent,
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		const std::shared_ptr<RadioenumGroup<Enum>> &group,
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		Enum value,
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		const QString &text,
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		const style::Checkbox &st,
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		std::unique_ptr<AbstractCheckView> check)
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		: Radiobutton(
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			parent,
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			std::shared_ptr<RadiobuttonGroup>(group, &group->_group),
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			static_cast<int>(value),
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			text,
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			st,
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			std::move(check)) {
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	}
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};
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} // namespace Ui
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