69 lines
		
	
	
	
		
			1.4 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			69 lines
		
	
	
	
		
			1.4 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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| 
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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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| #include "ui/controls/send_as_button.h"
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| 
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| #include "ui/effects/cross_animation.h"
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| #include "styles/style_chat.h"
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| 
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| namespace Ui {
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| 
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| SendAsButton::SendAsButton(QWidget *parent, const style::SendAsButton &st)
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| : AbstractButton(parent)
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| , _st(st) {
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| 	resize(_st.width, _st.height);
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| }
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| 
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| void SendAsButton::setUserpic(QImage userpic) {
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| 	_userpic = std::move(userpic);
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| 	update();
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| }
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| 
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| void SendAsButton::setActive(bool active) {
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| 	if (_active == active) {
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| 		return;
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| 	}
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| 	_active = active;
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| 	_activeAnimation.start(
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| 		[=] { update(); },
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| 		_active ? 0. : 1.,
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| 		_active ? 1. : 0.,
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| 		_st.duration);
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| }
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| 
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| void SendAsButton::paintEvent(QPaintEvent *e) {
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| 	auto p = Painter(this);
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| 
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| 	const auto left = (width() - _st.size) / 2;
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| 	const auto top = (height() - _st.size) / 2;
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| 
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| 	const auto active = _activeAnimation.value(_active ? 1. : 0.);
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| 	if (active < 1. && !_userpic.isNull()) {
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| 		p.drawImage(QRect(left, top, _st.size, _st.size), _userpic);
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| 	}
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| 	if (active > 0.) {
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| 		p.setOpacity(active);
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| 
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| 		p.setPen(Qt::NoPen);
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| 		p.setBrush(_st.activeBg);
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| 		{
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| 			PainterHighQualityEnabler hq(p);
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| 			p.drawEllipse(left, top, _st.size, _st.size);
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| 		}
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| 
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| 		CrossAnimation::paint(
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| 			p,
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| 			_st.cross,
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| 			_st.activeFg,
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| 			left,
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| 			top,
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| 			width(),
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| 			active);
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| 	}
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| }
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| 
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| } // namespace Ui
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