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Telegram/lib_ui/ui/round_rect.h

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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
+//
+#pragma once
+
+#include "ui/rect_part.h"
+#include "ui/style/style_core.h"
+
+enum class ImageRoundRadius;
+class QPainter;
+
+namespace Ui {
+
+[[nodiscard]] QPainterPath ComplexRoundedRectPath(
+	const QRect &rect,
+	int topLeftRadius,
+	int topRightRadius,
+	int bottomLeftRadius,
+	int bottomRightRadius);
+
+void DrawRoundedRect(
+	QPainter &p,
+	const QRect &rect,
+	const QBrush &brush,
+	const std::array<QImage, 4> &corners,
+	RectParts parts = RectPart::Full);
+
+class RoundRect final {
+public:
+	RoundRect(ImageRoundRadius radius, const style::color &color);
+	RoundRect(int radius, const style::color &color);
+
+	[[nodiscard]] const style::color &color() const;
+	void setColor(const style::color &color);
+	void paint(
+		QPainter &p,
+		const QRect &rect,
+		RectParts parts = RectPart::Full) const;
+	void paintSomeRounded(
+		QPainter &p,
+		const QRect &rect,
+		RectParts corners) const;
+
+private:
+	style::color _color;
+	std::array<QImage, 4> _corners;
+	Fn<void()> _refresh;
+
+	rpl::lifetime _lifetime;
+
+};
+
+} // namespace Ui