init

Telegram/SourceFiles/ui/controls/peer_list_dummy.cpp

@@ -0,0 +1,61 @@
+/*
+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/controls/peer_list_dummy.h"
+
+#include "ui/painter.h"
+#include "styles/style_widgets.h"
+
+PeerListDummy::PeerListDummy(
+	QWidget *parent,
+	int count,
+	const style::PeerList &st)
+: _st(st)
+, _count(count) {
+	resize(width(), _count * _st.item.height);
+}
+
+void PeerListDummy::paintEvent(QPaintEvent *e) {
+	QPainter p(this);
+
+	PainterHighQualityEnabler hq(p);
+
+	const auto fill = e->rect();
+	const auto bottom = fill.top() + fill.height();
+	const auto from = std::clamp(fill.top() / _st.item.height, 0, _count);
+	const auto till = std::clamp(
+		(bottom + _st.item.height - 1) / _st.item.height,
+		0,
+		_count);
+	p.translate(0, _st.item.height * from);
+	p.setPen(Qt::NoPen);
+	for (auto i = from; i != till; ++i) {
+		p.setBrush(st::windowBgOver);
+		p.drawEllipse(
+			_st.item.photoPosition.x(),
+			_st.item.photoPosition.y(),
+			_st.item.photoSize,
+			_st.item.photoSize);
+
+		const auto small = int(1.5 * _st.item.photoSize);
+		const auto large = 2 * small;
+		const auto second = (i % 2) ? large : small;
+		const auto height = _st.item.nameStyle.font->height / 2;
+		const auto radius = height / 2;
+		const auto left = _st.item.namePosition.x();
+		const auto top = _st.item.namePosition.y()
+			+ (_st.item.nameStyle.font->height - height) / 2;
+		const auto skip = _st.item.namePosition.x()
+			- _st.item.photoPosition.x()
+			- _st.item.photoSize;
+		const auto next = left + small + skip;
+		p.drawRoundedRect(left, top, small, height, radius, radius);
+		p.drawRoundedRect(next, top, second, height, radius, radius);
+
+		p.translate(0, _st.item.height);
+	}
+}