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Telegram/SourceFiles/ui/widgets/participants_check_view.cpp

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+/*
+This file is part of Telegram Desktop,
+the official desktop application for the Telegram messaging service.
+
+For license and copyright information please follow this link:
+https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
+*/
+#include "ui/widgets/participants_check_view.h"
+
+#include "ui/effects/ripple_animation.h"
+#include "ui/effects/toggle_arrow.h"
+#include "ui/painter.h"
+#include "ui/rect.h"
+#include "styles/style_boxes.h"
+
+namespace Ui {
+
+ParticipantsCheckView::ParticipantsCheckView(
+	int count,
+	int duration,
+	bool checked,
+	Fn<void()> updateCallback)
+: Ui::AbstractCheckView(duration, checked, std::move(updateCallback))
+, _text(QString::number(std::abs(count)))
+, _count(count) {
+}
+
+QSize ParticipantsCheckView::ComputeSize(int count) {
+	return QSize(
+		st::moderateBoxExpandHeight
+			+ st::moderateBoxExpand.width()
+			+ st::moderateBoxExpandInnerSkip * 4
+			+ st::moderateBoxExpandFont->width(
+				QString::number(std::abs(count)))
+			+ st::moderateBoxExpandToggleSize,
+		st::moderateBoxExpandHeight);
+}
+
+QSize ParticipantsCheckView::getSize() const {
+	return ComputeSize(_count);
+}
+
+void ParticipantsCheckView::paint(
+		QPainter &p,
+		int left,
+		int top,
+		int outerWidth) {
+	auto hq = PainterHighQualityEnabler(p);
+	const auto size = getSize();
+	const auto radius = size.height() / 2;
+	p.setPen(Qt::NoPen);
+	st::moderateBoxExpand.paint(
+		p,
+		radius,
+		left + (size.height() - st::moderateBoxExpand.height()) / 2,
+		top + size.width());
+
+	const auto innerSkip = st::moderateBoxExpandInnerSkip;
+
+	p.setBrush(Qt::NoBrush);
+	p.setPen(st::boxTextFg);
+	p.setFont(st::moderateBoxExpandFont);
+	p.drawText(
+		QRect(
+			left + innerSkip + radius + st::moderateBoxExpand.width(),
+			top,
+			size.width(),
+			size.height()),
+		_text,
+		style::al_left);
+
+	const auto path = Ui::ToggleUpDownArrowPath(
+		left + size.width() - st::moderateBoxExpandToggleSize - radius,
+		top + size.height() / 2,
+		st::moderateBoxExpandToggleSize,
+		st::moderateBoxExpandToggleFourStrokes,
+		Ui::AbstractCheckView::currentAnimationValue());
+	p.fillPath(path, st::boxTextFg);
+}
+
+QImage ParticipantsCheckView::prepareRippleMask() const {
+	const auto size = getSize();
+	return Ui::RippleAnimation::RoundRectMask(size, size.height() / 2);
+}
+
+bool ParticipantsCheckView::checkRippleStartPosition(QPoint position) const {
+	return Rect(getSize()).contains(position);
+}
+
+void ParticipantsCheckView::checkedChangedHook(anim::type animated) {
+}
+
+ParticipantsCheckView::~ParticipantsCheckView() = default;
+
+} // namespace Ui