Added a new tool (Dotted Pencil)

Paint_2/DotPencil.cs

@@ -0,0 +1,96 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Drawing;
+
+namespace Paint_2
+{
+    public class DotPencil:PaintTool
+    {
+        private List<List<Point>> _drawings;
+        private List<Color> _colors;
+        private List<int> _widths;
+        private Color _color;
+        private int _width;
+        public List<List<Point>> Drawings { get => _drawings; set => _drawings = value; }
+        public List<Color> Colors { get => _colors; set => _colors = value; }
+        public List<int> Widths { get => _widths; set => _widths = value; }
+        public Color Color { get => _color; set => _color = value; }
+        public int Width { get => _width; set => _width = value; }
+        public DotPencil()
+        {
+            Drawings = new List<List<Point>>();
+            Colors = new List<Color>();
+            Widths = new List<int>();
+        }
+        public void Add(Point point)
+        {
+            Drawings[Drawings.Count - 1].Add(point);
+        }
+        public void Paint(Bitmap canvas)
+        {
+            Graphics gr = Graphics.FromImage(canvas);
+            int drawingCounter = 0;
+            Size pointSize;
+
+            foreach (List<Point> drawing in Drawings)
+            {
+                int pointCounter = 0;
+                foreach (Point p in drawing)
+                {
+                    if (pointCounter > 0)
+                    {
+                        pointSize = new Size(Widths[drawingCounter], Widths[drawingCounter]);
+                        gr.FillEllipse(new SolidBrush(Colors[drawingCounter]), new Rectangle(new Point(p.X - pointSize.Width / 2, p.Y - pointSize.Height / 2), pointSize));
+                    }
+
+                    pointCounter += 1;
+                }
+                drawingCounter += 1;
+            }
+        }
+        public void Start(Color color, int width)
+        {
+            Color = color;
+            Width = width;
+            List<Point> points = new List<Point>();
+            Drawings.Add(points);
+            Colors.Add(Color);
+            Widths.Add(Width);
+        }
+        public void Clear()
+        {
+            Drawings = new List<List<Point>>();
+        }
+        public void Stop(Point point)
+        {
+            throw new NotImplementedException();
+        }
+        public List<Color> GetLastColors(int colorNumber)
+        {
+            List<Color> result = new List<Color>();
+            if (Colors.Count <= colorNumber)
+            {
+                //We need to fill with black color
+                for (int i = Colors.Count; i > 0; i--)
+                {
+                    result.Add(Colors[(Colors.Count) - i]);
+                }
+                for (int i = colorNumber - Colors.Count; i > 0; i--)
+                {
+                    result.Add(Color.FromArgb(0x00, 0x00, 0x00));
+                }
+            }
+            else
+            {
+                for (int i = colorNumber; i > 0; i--)
+                {
+                    result.Add(Colors[(Colors.Count) - i]);
+                }
+            }
+            return result;
+        }
+    }
+}

Paint_2/Form1.Designer.cs

@@ -435,6 +435,7 @@
             this.btnPencil.TabIndex = 20;
             this.btnPencil.Text = "Pencil";
             this.btnPencil.UseVisualStyleBackColor = false;
+            this.btnPencil.Click += new System.EventHandler(this.btnPencil_Click);
             // 
             // btnDotTracer
             // 
@@ -448,6 +449,7 @@
             this.btnDotTracer.TabIndex = 21;
             this.btnDotTracer.Text = "Dot tracer";
             this.btnDotTracer.UseVisualStyleBackColor = false;
+            this.btnDotTracer.Click += new System.EventHandler(this.btnDotTracer_Click);
             // 
             // btnShapeCreator
             // 

Paint_2/Form1.cs

@@ -14,6 +14,9 @@ namespace Paint_2
 {
     public partial class PaintForm : Form
     {
+        const int DEFAULT_PENCIL = 0;
+        const int DOT_PENCIL = 1;
+
         const string DEFAULT_FILEPATH = "C:/Paint2/Drawings/";
         Sketch sketch;
         List<PaintTool> toolList;
@@ -29,7 +32,7 @@ namespace Paint_2
             nupHeight.Value = canvas.Height;
             toolList = new List<PaintTool>();
             toolList.Add(new Pencil());
-            toolList.Add(new Pencil());
+            toolList.Add(new DotPencil());
             sketch = new Sketch(new Size((int)nupWidth.Value, (int)nupHeight.Value), toolList);
             canvas.Image = sketch.Drawing;
             tmrRefresh.Enabled = true;
@@ -43,17 +46,9 @@ namespace Paint_2
         {
             drawing = true;
             sketch.StartDrawing(MousePositionToCanvasPosition(), Color.FromArgb(rnd.Next(0, 256), rnd.Next(0, 256), rnd.Next(0, 256)), (int)nupPencilWidth.Value);
-            //tmrRefresh.Enabled = true;
-
-            List<Color> colorHistory = sketch.CurrentTool.GetLastColors(4);
-            btnColorHistory1.BackColor = colorHistory[0];
-            btnColorHistory2.BackColor = colorHistory[1];
-            btnColorHistory3.BackColor = colorHistory[2];
-            btnColorHistory4.BackColor = colorHistory[3];
         }
         private void canvas_MouseUp(object sender, MouseEventArgs e)
         {
-            //tmrRefresh.Enabled = false;
             sketch.AddDrawingPoint(MousePositionToCanvasPosition());
             drawing = false;
             RefreshUi();
@@ -90,6 +85,12 @@ namespace Paint_2
             hoveringColor = GetHoverColor();
             lblHoveringColor.Text = ColorToString(hoveringColor);
             btnHoveringColor.BackColor = hoveringColor;
+
+            List<Color> colorHistory = sketch.CurrentTool.GetLastColors(4);
+            btnColorHistory1.BackColor = colorHistory[0];
+            btnColorHistory2.BackColor = colorHistory[1];
+            btnColorHistory3.BackColor = colorHistory[2];
+            btnColorHistory4.BackColor = colorHistory[3];
         }
         private Color GetHoverColor()
         {
@@ -193,5 +194,17 @@ namespace Paint_2
 
             image.Save(DEFAULT_FILEPATH + fileName + "/" + fileName + ".png", System.Drawing.Imaging.ImageFormat.Png);
         }
+
+        private void btnDotTracer_Click(object sender, EventArgs e)
+        {
+            sketch.ChangeTool(DOT_PENCIL);
+            RefreshUi();
+        }
+
+        private void btnPencil_Click(object sender, EventArgs e)
+        {
+            sketch.ChangeTool(DEFAULT_PENCIL);
+            RefreshUi();
+        }
     }
 }

Paint_2/Paint_2.csproj

@@ -46,6 +46,7 @@
     <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="DotPencil.cs" />
     <Compile Include="Form1.cs">
       <SubType>Form</SubType>
     </Compile>

Paint_2/Sketch.cs

@@ -45,6 +45,16 @@ namespace Paint_2
         {
             //empty
         }
+        public void ChangeTool(int toolId)
+        {
+            try
+            {
+                CurrentTool = ToolList[toolId];
+            }catch (Exception ex)
+            {
+                Console.WriteLine("Oooops...");
+            }
+        }
         public void StartDrawing(Point location,Color color,int width)
         {
             CurrentTool.Start(color,width);