diff --git a/src/Tool/IntelliToolPen.h b/src/Tool/IntelliToolPen.h
index c923ddd..4bee026 100644
--- a/src/Tool/IntelliToolPen.h
+++ b/src/Tool/IntelliToolPen.h
@@ -4,21 +4,66 @@
 #include"IntelliTool.h"
 #include"QColor"
 #include"QPoint"
-
+/*!
+ * \brief The IntelliToolPen class represents a tool to draw a line.
+ */
 class IntelliToolPen : public IntelliTool{
+    /*!
+     * \brief penWidth - The width of the Pen while drawing.
+     */
     int penWidth;
+    /*!
+     * \brief point - Represents the previous point to help drawing a line.
+     */
     QPoint point;
 public:
+    /*!
+     * \brief A constructor setting the general paintingArea and colorPicker. Reading the penWidth.
+     * \param Area          - The general PaintingArea used by the project.
+     * \param colorPicker   - The general colorPicker used by the project.
+     */
     IntelliToolPen(PaintingArea* Area, IntelliColorPicker* colorPicker);
     virtual ~IntelliToolPen() override;
 
+    /*!
+     * \brief A function managing the right click pressed of a mouse.Resetting the current draw.
+     * \param x - The x coordinate relative to the active/canvas Layer.
+     * \param y - The y coordinate relative to the active/canvas Layer.
+     */
     virtual void onMouseRightPressed(int x, int y) override;
+
+    /*!
+     * \brief A function managing the right click released of a mouse.
+     * \param x - The x coordinate relative to the active/canvas Layer.
+     * \param y - The y coordinate relative to the active/canvas Layer.
+     */
     virtual void onMouseRightReleased(int x, int y) override;
+
+    /*!
+     * \brief A function managing the left click pressed of a mouse. Starting the drawing procedure.
+     * \param x - The x coordinate relative to the active/canvas Layer.
+     * \param y - The y coordinate relative to the active/canvas Layer.
+     */
     virtual void onMouseLeftPressed(int x, int y) override;
+
+    /*!
+     * \brief A function managing the left click released of a mouse. Merging the drawing to the active layer..
+     * \param x - The x coordinate relative to the active/canvas Layer.
+     * \param y - The y coordinate relative to the active/canvas Layer.
+     */
     virtual void onMouseLeftReleased(int x, int y) override;
 
+    /*!
+     * \brief A function managing the scroll event. Changing penWidth relativ to value.
+     * \param value - The absolute the scroll has changed.
+     */
     virtual void onWheelScrolled(int value) override;
 
+    /*!
+     * \brief A function managing the mouse moved event. To draw the line.
+     * \param x - The x coordinate of the new mouse position.
+     * \param y - The y coordinate of the new mouse position.
+     */
     virtual void onMouseMoved(int x, int y) override;
 };