Added a post processing precision ratio

Paint_2/DotPencil.cs

@@ -14,6 +14,8 @@ namespace Paint_2
 {
     public class DotPencil : PaintTool
     {
+        const int POST_PROCESSING_PRECISION = 3;
+
         private List<List<Point>> _drawings;
         private List<List<Point>> _drawingsRedo;
         private List<Color> _colors;
@@ -88,9 +90,34 @@ namespace Paint_2
             Widths = new List<int>();
             WidthsRedo = new List<int>();
         }
-        public void Stop(Point point)
+        public void Stop()
         {
-            throw new NotImplementedException();
+            for (int i = 0;i<POST_PROCESSING_PRECISION;i++)
+            {
+                List<Point> Drawing = Drawings[Drawings.Count - 1];
+                Drawings[Drawings.Count - 1] = PostProcessing(Drawing);
+            }
+        }
+        private List<Point> PostProcessing(List<Point> Drawing)
+        {
+            //THIS SHOULD BE REMOVED, IT IS ONLY HERE TO BE EASIER TO DEBUG THE CONCEPT
+            List<Point> NewDrawing = new List<Point>();
+            Point previous = new Point(-1, -1);
+            //Implementing a post processing
+            foreach (Point point in Drawing)
+            {
+                if (previous != new Point(-1, -1))
+                {
+                    NewDrawing.Add(new Point((previous.X + point.X) / 2, (previous.Y + point.Y) / 2));
+                    previous = point;
+                }
+                else
+                {
+                    previous = point;
+                }
+                NewDrawing.Add(point);
+            }
+            return NewDrawing;
         }
         public List<Color> GetLastColors(int colorNumber)
         {

Paint_2/Form1.cs

@@ -60,6 +60,7 @@ namespace Paint_2
         {
             sketch.AddDrawingPoint(MousePositionToCanvasPosition());
             drawing = false;
+            sketch.StopDrawing();
             RefreshUi();
         }
 

Paint_2/PaintTool.cs

@@ -25,7 +25,7 @@ namespace Paint_2
         string Name { get; set; }
 
         void Start(Color color, int width);
-        void Stop(Point point);
+        void Stop();
         void Add(Point point);
         void Undo();
         void Redo();

Paint_2/Pencil.cs

@@ -14,6 +14,8 @@ namespace Paint_2
 {
     public class Pencil : PaintTool
     {
+        const int POST_PROCESSING_PRECISION = 3;
+
         private List<List<Point>> _drawings;
         private List<List<Point>> _drawingsRedo;
         private List<Color> _colors;
@@ -89,9 +91,33 @@ namespace Paint_2
             Widths = new List<int>();
             WidthsRedo = new List<int>();
         }
-        public void Stop(Point point)
+        public void Stop()
         {
-            throw new NotImplementedException();
+            for (int i = 0; i < POST_PROCESSING_PRECISION; i++)
+            {
+                List<Point> Drawing = Drawings[Drawings.Count - 1];
+                Drawings[Drawings.Count - 1] = PostProcessing(Drawing);
+            }
+        }
+        private List<Point> PostProcessing(List<Point> Drawing)
+        {
+            List<Point> NewDrawing = new List<Point>();
+            Point previous = new Point(-1, -1);
+            //Implementing a post processing
+            foreach (Point point in Drawing)
+            {
+                if (previous != new Point(-1, -1))
+                {
+                    NewDrawing.Add(new Point((previous.X + point.X)/2,(previous.Y + point.Y)/2));
+                    previous = point;
+                }
+                else
+                {
+                    previous = point;
+                }
+                NewDrawing.Add(point);
+            }
+            return NewDrawing;
         }
         public List<Color> GetLastColors(int colorNumber)
         {

Paint_2/Sketch.cs

@@ -92,9 +92,9 @@ namespace Paint_2
         {
             CurrentTool.Start(CurrentTool.Color, width);
         }
-        public void StopDrawing(Point location)
+        public void StopDrawing()
         {
-            CurrentTool.Stop(location);
+            CurrentTool.Stop();
         }
         public void AddDrawingPoint(Point location)
         {