diff -r 2bdc3ac5e77c -r 55a55a9ec2c2 src/objecttypes/modelobject.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/objecttypes/modelobject.h	Sun Sep 22 11:51:41 2019 +0300
@@ -0,0 +1,61 @@
+#pragma once
+#include <QPointF>
+#include <QString>
+#include <QStringView>
+#include "main.h"
+#include "colors.h"
+#include "uuid.h"
+#include "vertex.h"
+
+namespace modelobjects
+{
+	enum class Property;
+	class BaseObject;
+	class ColoredBaseObject;
+}
+
+enum class modelobjects::Property
+{
+	Color,
+	Text,
+	Point1,
+	Point2,
+	Point3,
+	Point4,
+	ControlPoint1,
+	ControlPoint2,
+	Position,
+	Transformation,
+	ReferenceName,
+	IsInverted,
+};
+
+class modelobjects::BaseObject
+{
+public:
+	enum class SetPropertyResult
+	{
+		Success = 0,
+		PropertyNotHandled,
+		InvalidValue
+	};
+	BaseObject();
+	BaseObject(const BaseObject&) = delete;
+	virtual ~BaseObject();
+	const Uuid id;
+	//virtual void toString(QTextStream &out) = 0;
+	virtual bool hasColor() const;
+	virtual QVariant getProperty(Property id) const;
+	virtual SetPropertyResult setProperty(Property id, const QVariant& value);
+};
+
+class modelobjects::ColoredBaseObject : public BaseObject
+{
+public:
+	ColoredBaseObject(const Color color_index = colors::main);
+	bool hasColor() const override final;
+	QVariant getProperty(Property id) const override;
+	SetPropertyResult setProperty(Property id, const QVariant& value) override;
+private:
+	Color color_index = colors::main;
+};