144 lines
		
	
	
	
		
			3.7 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			144 lines
		
	
	
	
		
			3.7 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| /*
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| This file is part of Telegram Desktop,
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| the official desktop version of Telegram messaging app, see https://telegram.org
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| 
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| Telegram Desktop is free software: you can redistribute it and/or modify
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| it under the terms of the GNU General Public License as published by
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| the Free Software Foundation, either version 3 of the License, or
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| (at your option) any later version.
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| 
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| It is distributed in the hope that it will be useful,
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| but WITHOUT ANY WARRANTY; without even the implied warranty of
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| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| GNU General Public License for more details.
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| 
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| In addition, as a special exception, the copyright holders give permission
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| to link the code of portions of this program with the OpenSSL library.
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| 
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| Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
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| Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
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| */
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| #include "info/profile/info_profile_button.h"
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| 
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| #include <rpl/never.h>
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| #include "ui/widgets/checkbox.h"
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| #include "styles/style_info.h"
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| 
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| namespace Info {
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| namespace Profile {
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| 
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| Button::Button(
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| 	QWidget *parent,
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| 	rpl::producer<QString> &&text)
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| : Button(parent, std::move(text), st::infoProfileButton) {
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| }
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| 
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| Button::Button(
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| 	QWidget *parent,
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| 	rpl::producer<QString> &&text,
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| 	const style::InfoProfileButton &st)
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| : RippleButton(parent, st.ripple)
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| , _st(st) {
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| 	std::move(text)
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| 		| rpl::start_with_next([this](QString &&value) {
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| 			setText(std::move(value));
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| 		}, lifetime());
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| }
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| 
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| Button *Button::toggleOn(rpl::producer<bool> &&toggled) {
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| 	Expects(_toggle == nullptr);
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| 	_toggle = std::make_unique<Ui::ToggleView>(
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| 		isOver() ? _st.toggleOver : _st.toggle,
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| 		false,
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| 		[this] { rtlupdate(toggleRect()); });
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| 	addClickHandler([this] {
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| 		_toggle->setCheckedAnimated(!_toggle->checked());
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| 	});
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| 	std::move(toggled)
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| 		| rpl::start_with_next([this](bool toggled) {
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| 			_toggle->setCheckedAnimated(toggled);
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| 		}, lifetime());
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| 	_toggle->finishAnimating();
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| 	return this;
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| }
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| 
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| rpl::producer<bool> Button::toggledValue() const {
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| 	if (_toggle) {
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| 		return _toggle->checkedValue();
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| 	}
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| 	return rpl::never<bool>();
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| }
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| 
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| void Button::paintEvent(QPaintEvent *e) {
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| 	Painter p(this);
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| 
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| 	auto ms = getms();
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| 	auto paintOver = (isOver() || isDown());
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| 	p.fillRect(e->rect(), paintOver ? _st.textBgOver : _st.textBg);
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| 
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| 	paintRipple(p, 0, 0, ms);
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| 
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| 	auto outerw = width();
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| 	p.setFont(_st.font);
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| 	p.setPen(paintOver ? _st.textFgOver : _st.textFg);
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| 	p.drawTextLeft(
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| 		_st.padding.left(),
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| 		_st.padding.top(),
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| 		outerw,
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| 		_text,
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| 		_textWidth);
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| 
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| 	if (_toggle) {
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| 		auto rect = toggleRect();
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| 		_toggle->paint(p, rect.left(), rect.top(), outerw, ms);
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| 	}
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| }
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| 
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| QRect Button::toggleRect() const {
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| 	Expects(_toggle != nullptr);
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| 	auto size = _toggle->getSize();
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| 	auto left = width() - _st.toggleSkip - size.width();
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| 	auto top = (height() - size.height()) / 2;
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| 	return { QPoint(left, top), size };
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| }
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| 
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| int Button::resizeGetHeight(int newWidth) {
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| 	updateVisibleText(newWidth);
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| 	return _st.padding.top() + _st.height + _st.padding.bottom();
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| }
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| 
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| void Button::onStateChanged(
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| 		State was,
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| 		StateChangeSource source) {
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| 	RippleButton::onStateChanged(was, source);
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| 	if (_toggle) {
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| 		_toggle->setStyle(isOver() ? _st.toggleOver : _st.toggle);
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| 	}
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| }
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| 
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| void Button::setText(QString &&text) {
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| 	_original = std::move(text);
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| 	_originalWidth = _st.font->width(_original);
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| 	updateVisibleText(width());
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| }
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| 
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| void Button::updateVisibleText(int newWidth) {
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| 	auto availableWidth = newWidth
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| 		- _st.padding.left()
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| 		- _st.padding.right();
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| 	if (_toggle) {
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| 		availableWidth -= (width() - toggleRect().x());
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| 	}
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| 	accumulate_max(availableWidth, 0);
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| 	if (availableWidth < _originalWidth) {
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| 		_text = _st.font->elided(_original, availableWidth);
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| 		_textWidth = _st.font->width(_text);
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| 	} else {
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| 		_text = _original;
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| 		_textWidth = _originalWidth;
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| 	}
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| 	update();
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| }
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| 
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| } // namespace Profile
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| } // namespace Info
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