NOISSUE move everything.

application/widgets/LineSeparator.h

@@ -0,0 +1,18 @@
+#pragma once
+#include <QWidget>
+
+class QStyleOption;
+
+class LineSeparator : public QWidget
+{
+	Q_OBJECT
+
+public:
+	/// Create a line separator. orientation is the orientation of the line.
+	explicit LineSeparator(QWidget *parent, Qt::Orientation orientation = Qt::Horizontal);
+	QSize sizeHint() const;
+	void paintEvent(QPaintEvent *);
+	void initStyleOption(QStyleOption *option) const;
+private:
+	Qt::Orientation m_orientation = Qt::Horizontal;
+};