init

Telegram/lib_ui/ui/dpr/dpr_icon.cpp

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+// This file is part of Desktop App Toolkit,
+// a set of libraries for developing nice desktop applications.
+//
+// For license and copyright information please follow this link:
+// https://github.com/desktop-app/legal/blob/master/LEGAL
+//
+#include "ui/dpr/dpr_icon.h"
+
+namespace dpr {
+
+QImage IconFrame(
+		const style::icon &icon,
+		const QColor &color,
+		double ratio) {
+	const auto scale = style::Scale() * ratio;
+	const auto use = (scale > 200. || style::DevicePixelRatio() > 2)
+		? (300 / style::DevicePixelRatio())
+		: (scale > 100.)
+		? (200 / style::DevicePixelRatio())
+		: (100 / style::DevicePixelRatio());
+	auto image = icon.instance(color, use);
+	image.setDevicePixelRatio(1.);
+	const auto desired = icon.size() * ratio;
+	return (image.size() == desired)
+		? image
+		: image.scaled(
+			desired,
+			Qt::IgnoreAspectRatio,
+			Qt::SmoothTransformation);
+}
+
+} // namespace dpr