Fixed the SVG generator of the bezier pencil

Paint_2/BezierPencil.cs

@@ -18,6 +18,8 @@ namespace Paint_2
         private List<List<Point>> _drawings;
         private List<List<Point>> _drawingsRedo;
         private bool _needsFullRefresh;
+        private bool _isCtrlPressed;
+        private bool _isShiftPressed;
         private PaintToolUtils Utils;
         private List<Color> _colors;
         private List<Color> _colorsRedo;
@@ -34,13 +36,15 @@ namespace Paint_2
         public List<Color> ColorsRedo { get => _colorsRedo; set => _colorsRedo = value; }
         public List<int> Widths { get => _widths; set => _widths = value; }
         public List<int> WidthsRedo { get => _widthsRedo; set => _widthsRedo = value; }
+        public bool IsShiftPressed { get => _isShiftPressed; set => _isShiftPressed = value; }
+        public bool IsCtrlPressed { get => _isCtrlPressed; set => _isCtrlPressed = value; }
         public Color Color { get => _color; set => _color = value; }
         public string Name { get => _name; set => _name = value; }
         public int Width { get => _width; set => _width = value; }
 
         public BezierPencil(string name)
         {
-            NeedsFullRefresh = false;
+            NeedsFullRefresh = true;
             Drawings = new List<List<Point>>();
             DrawingsRedo = new List<List<Point>>();
             Colors = new List<Color>();
@@ -84,13 +88,51 @@ namespace Paint_2
             {
                 for (int i = 0; i < points.Count; i++)
                 {
-                    pointSize = new Size(Widths[0]/2, Widths[0]/2);
+                    pointSize = new Size(Widths[0] / 2, Widths[0] / 2);
-                    gr.FillEllipse(new SolidBrush(Colors[i]), new Rectangle(new Point(points[i].X - pointSize.Width / 2, points[i].Y - pointSize.Height / 2), pointSize));
+                    //ContinuousBezierGenerator(gr, points, Colors[Colors.Count-1], Widths[Widths.Count -1]);
-                    ContinuousBezierGenerator(gr, points, i, Colors[Colors.Count-1], Widths[Widths.Count -1]);
+                    AdjustedBezierGenerator(gr, points, Colors[Colors.Count - 1], Widths[Widths.Count - 1]);
                 }
             }
         }
-        private void ContinuousBezierGenerator(Graphics gr, List<Point> points, int i,Color color,int width)
+        private void AdjustedBezierGenerator(Graphics gr, List<Point> points, Color color, int width)
+        {
+            foreach (Point p in points)
+            {
+                gr.FillEllipse(new SolidBrush(color), new Rectangle(new Point(p.X - width / 2, p.Y - width / 2), new Size(width,width)));
+            }
+            if (points.Count >= 3)
+            {
+                float precision = 0.01f;
+                for (float t = 0; t <= 1; t += precision)
+                {
+                    List<Point> DumpList = new List<Point>();
+                    List<Point> WorkingList = new List<Point>();
+
+                    foreach (Point p in points)
+                    {
+                        WorkingList.Add(new Point(p.X, p.Y));
+                    }
+                    while (WorkingList.Count > 1)
+                    {
+                        for (int i = 0; i < WorkingList.Count - 1; i++)
+                        {
+                            Point p1 = WorkingList[i];
+                            Point p2 = WorkingList[i + 1];
+                            Point tmp = Utils.Lerp(p1, p2, t);
+                            DumpList.Add(tmp);
+                        }
+                        WorkingList.Clear();
+                        foreach (Point p in DumpList)
+                        {
+                            WorkingList.Add(new Point(p.X, p.Y));
+                        }
+                        DumpList.Clear();
+                    }
+                    gr.FillEllipse(new SolidBrush(color), new Rectangle(WorkingList[0].X - Widths[0] / 2, WorkingList[0].Y - Widths[0] / 2, width, width));
+                }
+            }
+        }
+        private void ContinuousBezierGenerator(Graphics gr, List<Point> points, Color color, int width)
         {
             if (points.Count >= 4 && points.Count % 2 == 0)
             {
@@ -120,6 +162,72 @@ namespace Paint_2
                 }
             }
         }
+        public string PaintSVG()
+        {
+            string result = "";
+            string newLine = Environment.NewLine;
+
+            Size pointSize;
+            List<Point> points = new List<Point>();
+            foreach (List<Point> drawing in Drawings)
+            {
+                if (drawing.Count > 0)
+                {
+                    points.Add(drawing[0]);
+                }
+            }
+            if (points.Count > 0)
+            {
+                for (int i = 0; i < points.Count; i++)
+                {
+                    pointSize = new Size(Widths[0] / 2, Widths[0] / 2);
+                    //Not really usefull in the SVG world because only the last layer will be displayed
+                    //result += "<ellipse cx=\"" + points[i].X + "\" cy=\"" + points[i].Y + "\" rx=\"" + pointSize.Width / 2 + "\" ry=\"" + pointSize.Height / 2 + "\" style=\"fill:rgb(" + Colors[i].R + ", " + Colors[i].G + ", " + Colors[i].B + ");\"/>";
+                    //result += newLine;
+                    result += ContinuousBezierGeneratorSVG(points, Colors[Colors.Count - 1], Widths[Widths.Count - 1]);
+                }
+            }
+            return result;
+        }
+        private string ContinuousBezierGeneratorSVG(List<Point> points, Color color, int width)
+        {
+            string result = "";
+            string newLine = Environment.NewLine;
+
+            if (points.Count >= 3)
+            {
+                float precision = 0.01f;
+                for (float t = 0; t <= 1; t += precision)
+                {
+                    List<Point> DumpList = new List<Point>();
+                    List<Point> WorkingList = new List<Point>();
+
+                    foreach (Point p in points)
+                    {
+                        WorkingList.Add(new Point(p.X, p.Y));
+                    }
+                    while (WorkingList.Count > 1)
+                    {
+                        for (int i = 0; i < WorkingList.Count - 1; i++)
+                        {
+                            Point p1 = WorkingList[i];
+                            Point p2 = WorkingList[i + 1];
+                            Point tmp = Utils.Lerp(p1, p2, t);
+                            DumpList.Add(tmp);
+                        }
+                        WorkingList.Clear();
+                        foreach (Point p in DumpList)
+                        {
+                            WorkingList.Add(new Point(p.X, p.Y));
+                        }
+                        DumpList.Clear();
+                    }
+                    result += "<ellipse cx=\"" + WorkingList[0].X + "\" cy=\"" + WorkingList[0].Y + "\" rx=\"" + width / 2 + "\" ry=\"" + width / 2 + "\" style=\"fill:rgb(" + color.R + ", " + color.G + ", " + color.B + ");\"/>";
+                    result += newLine;
+                }
+            }
+            return result;
+        }
         private void BezierGenerator(Graphics gr, Point p1, Point p2, Point p3, Point p4, int i)
         {
             gr.DrawLine(new Pen(Colors[i - 4], Widths[i - 4]), p1, p2);
@@ -152,7 +260,7 @@ namespace Paint_2
         }
         public void Start(Color color, int width)
         {
-            Utils.StandartStart(color,width);
+            Utils.StandartStart(color, width);
         }
 
         public void Stop()

Paint_2/DotPencil.cs

@@ -20,6 +20,8 @@ namespace Paint_2
         private List<List<Point>> _drawings;
         private List<List<Point>> _drawingsRedo;
         private bool _needsFullRefresh;
+        private bool _isShiftPressed;
+        private bool _isCtrlPressed;
         private PaintToolUtils Utils;
         private List<Color> _colors;
         private List<Color> _colorsRedo;
@@ -32,6 +34,8 @@ namespace Paint_2
         public List<List<Point>> Drawings { get => _drawings; set => _drawings = value; }
         public List<List<Point>> DrawingsRedo { get => _drawingsRedo; set => _drawingsRedo = value; }
         public bool NeedsFullRefresh { get => _needsFullRefresh; set => _needsFullRefresh = value; }
+        public bool IsShiftPressed { get => _isShiftPressed; set => _isShiftPressed = value; }
+        public bool IsCtrlPressed { get => _isCtrlPressed; set => _isCtrlPressed = value; }
         public List<Color> Colors { get => _colors; set => _colors = value; }
         public List<Color> ColorsRedo { get => _colorsRedo; set => _colorsRedo = value; }
         public List<int> Widths { get => _widths; set => _widths = value; }
@@ -138,5 +142,34 @@ namespace Paint_2
             result.Color = Color;
             return (Object)(result);
         }
+
+        public string PaintSVG()
+        {
+            string result = "";
+            string newLine = Environment.NewLine;
+
+            for (int drawCount = 0; drawCount < Drawings.Count; drawCount++)
+            {
+                Point p1;
+                Point p2;
+                List<Point> drawing = Drawings[drawCount];
+                Color color = Colors[drawCount];
+                int width = Widths[drawCount];
+                for (int pointIndex = 0; pointIndex < drawing.Count; pointIndex++)
+                {
+                    if (pointIndex >= 1)
+                    {
+                        p1 = drawing[pointIndex - 1];
+                        p2 = drawing[pointIndex];
+
+                        result += "<ellipse cx=\"" + p2.X + "\" cy=\"" + p2.Y + "\" rx=\"" + width / 2 + "\" ry=\"" + width / 2 + "\" style=\"fill:rgb(" + color.R + ", " + color.G + ", " + color.B + ");\"/>";
+                        result += newLine;
+                    }
+
+                }
+            }
+
+            return result;
+        }
     }
 }

Paint_2/EllipseBorderPencil.cs

@@ -13,11 +13,13 @@ using System.Drawing;
 
 namespace Paint_2
 {
-    internal class EllipseBorderPencil:PaintTool
+    internal class EllipseBorderPencil : PaintTool
     {
         private List<List<Point>> _drawings;
         private List<List<Point>> _drawingsRedo;
         private bool _needsFullRefresh;
+        private bool _isShiftPressed;
+        private bool _isCtrlPressed;
         private PaintToolUtils Utils;
         private List<Color> _colors;
         private List<Color> _colorsRedo;
@@ -34,6 +36,8 @@ namespace Paint_2
         public List<Color> ColorsRedo { get => _colorsRedo; set => _colorsRedo = value; }
         public List<int> Widths { get => _widths; set => _widths = value; }
         public List<int> WidthsRedo { get => _widthsRedo; set => _widthsRedo = value; }
+        public bool IsShiftPressed { get => _isShiftPressed; set => _isShiftPressed = value; }
+        public bool IsCtrlPressed { get => _isCtrlPressed; set => _isCtrlPressed = value; }
         public Color Color { get => _color; set => _color = value; }
         public string Name { get => _name; set => _name = value; }
         public int Width { get => _width; set => _width = value; }
@@ -63,9 +67,11 @@ namespace Paint_2
             }
             Drawings[Drawings.Count - 1] = myDrawing;
         }
-        public void Paint(Bitmap canvas)
+        public string PaintSVG()
         {
-            Graphics gr = Graphics.FromImage(canvas);
+            string result = "";
+            string newLine = Environment.NewLine;
+
             int drawingCounter = 0;
             Size pointSize;
 
@@ -73,33 +79,54 @@ namespace Paint_2
             {
                 if (drawing.Count == 2)
                 {
-                    Point p1 = drawing[0];
+                    Point start = drawing[0];
-                    Point p2 = drawing[1];
+                    Point end = drawing[1];
 
-                    Point start = new Point(0, 0);
+                    List<Point> points;
-                    Point end = new Point(0, 0);
+                    if (drawingCounter == Drawings.Count - 1)
-
-                    if (p2.X > p1.X)
                     {
-                        start.X = p1.X;
+                        points = Utils.ConvertRectangleIntoPositive(IsCtrlPressed, drawing[0], drawing[1]);
-                        end.X = p2.X;
                     }
                     else
                     {
-                        start.X = p2.X;
+                        points = Utils.ConvertRectangleIntoPositive(false, drawing[0], drawing[1]);
-                        end.X = p1.X;
                     }
-                    if (p2.Y > p1.Y)
+
+                    start = points[0];
+                    end = points[1];
+
+                    Size size = new Size((end.X - start.X) / 2, (end.Y - start.Y) / 2);
+                    result += "<ellipse cx=\"" + (start.X + size.Width) + "\" cy=\"" + (start.Y + size.Height) + "\" rx=\"" + size.Width + "\" ry=\"" + size.Height + "\" style=\"stroke:rgb(" + Colors[drawingCounter].R + ", " + Colors[drawingCounter].G + ", " + Colors[drawingCounter].B + ");\" stroke-width=\"" + Widths[drawingCounter] + "\" fill=\"none\"/>";
+                    result += newLine;
+                }
+                drawingCounter++;
+            }
+            return result;
+        }
+        public void Paint(Bitmap canvas)
         {
-                        start.Y = p1.Y;
+            Graphics gr = Graphics.FromImage(canvas);
-                        end.Y = p2.Y;
+            int drawingCounter = 0;
+            foreach (List<Point> drawing in Drawings)
+            {
+                if (drawing.Count == 2)
+                {
+                    Point start = drawing[0];
+                    Point end = drawing[1];
+
+                    List<Point> points;
+                    if (drawingCounter == Drawings.Count - 1)
+                    {
+                        points = Utils.ConvertRectangleIntoPositive(IsCtrlPressed, drawing[0], drawing[1]);
                     }
                     else
                     {
-                        start.Y = p2.Y;
+                        points = Utils.ConvertRectangleIntoPositive(false, drawing[0], drawing[1]);
-                        end.Y = p1.Y;
                     }
 
+                    start = points[0];
+                    end = points[1];
+
                     gr.DrawEllipse(new Pen(Colors[drawingCounter], Widths[drawingCounter]), new Rectangle(start, new Size(end.X - start.X, end.Y - start.Y)));
                 }
                 drawingCounter++;
@@ -115,10 +142,8 @@ namespace Paint_2
         }
         public void Stop()
         {
-            for (int i = 0; i < Drawings.Count; i++)
+            List<Point> myDrawing = Drawings.Last();
-            {
+            Drawings[Drawings.Count - 1] = Utils.ConvertRectangleIntoPositive(IsCtrlPressed, myDrawing[0], myDrawing[1]);
-                List<Point> Drawing = Drawings[i];
-            }
         }
         private Bitmap PostProcessing(List<Point> Drawing, Bitmap bmp, int width, Color color)
         {

Paint_2/EllipsePencil.cs

@@ -17,6 +17,8 @@ namespace Paint_2
         private List<List<Point>> _drawings;
         private List<List<Point>> _drawingsRedo;
         private bool _needsFullRefresh;
+        private bool _isShiftPressed;
+        private bool _isCtrlPressed;
         private PaintToolUtils Utils;
         private List<Color> _colors;
         private List<Color> _colorsRedo;
@@ -33,6 +35,8 @@ namespace Paint_2
         public List<Color> ColorsRedo { get => _colorsRedo; set => _colorsRedo = value; }
         public List<int> Widths { get => _widths; set => _widths = value; }
         public List<int> WidthsRedo { get => _widthsRedo; set => _widthsRedo = value; }
+        public bool IsShiftPressed { get => _isShiftPressed; set => _isShiftPressed = value; }
+        public bool IsCtrlPressed { get => _isCtrlPressed; set => _isCtrlPressed = value; }
         public Color Color { get => _color; set => _color = value; }
         public string Name { get => _name; set => _name = value; }
         public int Width { get => _width; set => _width = value; }
@@ -72,38 +76,63 @@ namespace Paint_2
             {
                 if (drawing.Count == 2)
                 {
-                    Point p1 = drawing[0];
+                    Point start = drawing[0];
-                    Point p2 = drawing[1];
+                    Point end = drawing[1];
 
-                    Point start = new Point(0, 0);
+                    List<Point> points;
-                    Point end = new Point(0, 0);
+                    if (drawingCounter == Drawings.Count - 1)
-
-                    if (p2.X > p1.X)
                     {
-                        start.X = p1.X;
+                        points = Utils.ConvertRectangleIntoPositive(IsCtrlPressed, drawing[0], drawing[1]);
-                        end.X = p2.X;
                     }
                     else
                     {
-                        start.X = p2.X;
+                        points = Utils.ConvertRectangleIntoPositive(false, drawing[0], drawing[1]);
-                        end.X = p1.X;
-                    }
-                    if (p2.Y > p1.Y)
-                    {
-                        start.Y = p1.Y;
-                        end.Y = p2.Y;
-                    }
-                    else
-                    {
-                        start.Y = p2.Y;
-                        end.Y = p1.Y;
                     }
 
+                    start = points[0];
+                    end = points[1];
+
                     gr.FillEllipse(new SolidBrush(Colors[drawingCounter]), new Rectangle(start, new Size(end.X - start.X, end.Y - start.Y)));
                 }
                 drawingCounter++;
             }
         }
+        public string PaintSVG()
+        {
+            string result = "";
+            string newLine = Environment.NewLine;
+
+            int drawingCounter = 0;
+            Size pointSize;
+
+            foreach (List<Point> drawing in Drawings)
+            {
+                if (drawing.Count == 2)
+                {
+                    Point start = drawing[0];
+                    Point end = drawing[1];
+
+                    List<Point> points;
+                    if (drawingCounter == Drawings.Count - 1)
+                    {
+                        points = Utils.ConvertRectangleIntoPositive(IsCtrlPressed, drawing[0], drawing[1]);
+                    }
+                    else
+                    {
+                        points = Utils.ConvertRectangleIntoPositive(false, drawing[0], drawing[1]);
+                    }
+
+                    start = points[0];
+                    end = points[1];
+
+                    Size size = new Size((end.X - start.X) / 2, (end.Y - start.Y) / 2);
+                    result += "<ellipse cx=\"" + (start.X + size.Width) + "\" cy=\"" + (start.Y + size.Height) + "\" rx=\"" + size.Width + "\" ry=\"" + size.Height + "\" style=\"fill:rgb(" + Colors[drawingCounter].R + ", " + Colors[drawingCounter].G + ", " + Colors[drawingCounter].B + ");\"/>";
+                    result += newLine;
+                }
+                drawingCounter++;
+            }
+            return result;
+        }
         public void Start(Color color, int width)
         {
             Utils.StandartStart(color, width);
@@ -114,10 +143,8 @@ namespace Paint_2
         }
         public void Stop()
         {
-            for (int i = 0; i < Drawings.Count; i++)
+            List<Point> myDrawing = Drawings.Last();
-            {
+            Drawings[Drawings.Count - 1] = Utils.ConvertRectangleIntoPositive(IsCtrlPressed, myDrawing[0], myDrawing[1]);
-                List<Point> Drawing = Drawings[i];
-            }
         }
         private Bitmap PostProcessing(List<Point> Drawing, Bitmap bmp, int width, Color color)
         {

Paint_2/Form1.Designer.cs

@@ -69,8 +69,10 @@
             this.btnLayerRemove = new System.Windows.Forms.Button();
             this.BtnAddLayer = new System.Windows.Forms.Button();
             this.label2 = new System.Windows.Forms.Label();
-            this.DebugLabel = new System.Windows.Forms.Label();
+            this.DebugLabel1 = new System.Windows.Forms.Label();
             this.panel4 = new System.Windows.Forms.Panel();
+            this.btnSvgExport = new System.Windows.Forms.Button();
+            this.DebugLabel2 = new System.Windows.Forms.Label();
             ((System.ComponentModel.ISupportInitialize)(this.canvas)).BeginInit();
             this.panelFile.SuspendLayout();
             this.panelDrawing.SuspendLayout();
@@ -412,7 +414,7 @@
             this.lsbTools.Location = new System.Drawing.Point(6, 20);
             this.lsbTools.Margin = new System.Windows.Forms.Padding(3, 2, 3, 2);
             this.lsbTools.Name = "lsbTools";
-            this.lsbTools.Size = new System.Drawing.Size(183, 142);
+            this.lsbTools.Size = new System.Drawing.Size(183, 128);
             this.lsbTools.TabIndex = 32;
             this.lsbTools.SelectedIndexChanged += new System.EventHandler(this.lsbTools_SelectedIndexChanged);
             // 
@@ -599,14 +601,14 @@
             this.label2.Size = new System.Drawing.Size(0, 16);
             this.label2.TabIndex = 36;
             // 
-            // DebugLabel
+            // DebugLabel1
             // 
-            this.DebugLabel.AutoSize = true;
+            this.DebugLabel1.AutoSize = true;
-            this.DebugLabel.Location = new System.Drawing.Point(18, 86);
+            this.DebugLabel1.Location = new System.Drawing.Point(17, 64);
-            this.DebugLabel.Name = "DebugLabel";
+            this.DebugLabel1.Name = "DebugLabel1";
-            this.DebugLabel.Size = new System.Drawing.Size(48, 14);
+            this.DebugLabel1.Size = new System.Drawing.Size(48, 14);
-            this.DebugLabel.TabIndex = 38;
+            this.DebugLabel1.TabIndex = 38;
-            this.DebugLabel.Text = "Debug";
+            this.DebugLabel1.Text = "Debug";
             // 
             // panel4
             // 
@@ -624,14 +626,40 @@
             this.panel4.Size = new System.Drawing.Size(507, 39);
             this.panel4.TabIndex = 37;
             // 
+            // btnSvgExport
+            // 
+            this.btnSvgExport.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(59)))), ((int)(((byte)(59)))), ((int)(((byte)(59)))));
+            this.btnSvgExport.FlatStyle = System.Windows.Forms.FlatStyle.Popup;
+            this.btnSvgExport.Font = new System.Drawing.Font("Cascadia Code", 10.2F);
+            this.btnSvgExport.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(247)))), ((int)(((byte)(247)))), ((int)(((byte)(247)))));
+            this.btnSvgExport.Location = new System.Drawing.Point(1014, 505);
+            this.btnSvgExport.Margin = new System.Windows.Forms.Padding(3, 2, 3, 2);
+            this.btnSvgExport.Name = "btnSvgExport";
+            this.btnSvgExport.Size = new System.Drawing.Size(196, 33);
+            this.btnSvgExport.TabIndex = 37;
+            this.btnSvgExport.Text = "Export SVG";
+            this.btnSvgExport.UseVisualStyleBackColor = false;
+            this.btnSvgExport.Click += new System.EventHandler(this.btnSvgExport_Click);
+            // 
+            // DebugLabel2
+            // 
+            this.DebugLabel2.AutoSize = true;
+            this.DebugLabel2.Location = new System.Drawing.Point(17, 78);
+            this.DebugLabel2.Name = "DebugLabel2";
+            this.DebugLabel2.Size = new System.Drawing.Size(48, 14);
+            this.DebugLabel2.TabIndex = 39;
+            this.DebugLabel2.Text = "Debug";
+            // 
             // PaintForm
             // 
             this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 14F);
             this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
             this.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(34)))), ((int)(((byte)(34)))), ((int)(((byte)(34)))));
             this.ClientSize = new System.Drawing.Size(1222, 618);
+            this.Controls.Add(this.DebugLabel2);
+            this.Controls.Add(this.btnSvgExport);
             this.Controls.Add(this.panel4);
-            this.Controls.Add(this.DebugLabel);
+            this.Controls.Add(this.DebugLabel1);
             this.Controls.Add(this.panel3);
             this.Controls.Add(this.panel1);
             this.Controls.Add(this.panelHoverColor);
@@ -648,6 +676,8 @@
             this.Name = "PaintForm";
             this.Text = "Paint 2";
             this.Load += new System.EventHandler(this.PaintForm_Load);
+            this.KeyDown += new System.Windows.Forms.KeyEventHandler(this.PaintForm_KeyDown);
+            this.KeyUp += new System.Windows.Forms.KeyEventHandler(this.PaintForm_KeyUp);
             this.Resize += new System.EventHandler(this.PaintForm_Resize);
             ((System.ComponentModel.ISupportInitialize)(this.canvas)).EndInit();
             this.panelFile.ResumeLayout(false);
@@ -711,10 +741,12 @@
         private System.Windows.Forms.Button btnEyeDrop;
         private System.Windows.Forms.Button btnLayerRemove;
         private System.Windows.Forms.Button BtnAddLayer;
-        private System.Windows.Forms.Label DebugLabel;
+        private System.Windows.Forms.Label DebugLabel1;
         private System.Windows.Forms.Panel pnlLayers;
         private System.Windows.Forms.Label label3;
         private System.Windows.Forms.Panel panel4;
+        private System.Windows.Forms.Button btnSvgExport;
+        private System.Windows.Forms.Label DebugLabel2;
     }
 }
 

Paint_2/Form1.cs

@@ -42,6 +42,7 @@ namespace Paint_2
             Project = new Project("Untitled project", canvas.Size);
             SelectedLayers = new List<string>();
             SelectedLayers.Add(Project.GetAllLayers()[0].Id);
+            this.KeyPreview = true;
             RefreshUi();
         }
         private Point MousePositionToCanvasPosition()
@@ -50,6 +51,7 @@ namespace Paint_2
         }
         private void canvas_MouseDown(object sender, MouseEventArgs e)
         {
+            canvas.Focus();
             Color hoveringColor = GetHoverColor();
             Point mousePosition = MousePositionToCanvasPosition();
             int toolWidth = (int)nupPencilWidth.Value;
@@ -93,7 +95,7 @@ namespace Paint_2
         private void RefreshUi()
         {
             lsbTools.DataSource = Project.AvaibleTools;
-            DebugLabel.Text = "";
+            DebugLabel1.Text = "";
 
             PaintTool currentTool = Project.GetCurrentTool(SelectedLayers);
             if (currentTool != null && currentTool.NeedsFullRefresh)
@@ -131,6 +133,26 @@ namespace Paint_2
 
             pbxSample.Image = DrawSample(pbxSample.Size);
 
+            DebugLabel1.Text = "Control";
+            DebugLabel2.Text = "Shift";
+
+            if (Project.GetCurrentTool(SelectedLayers).IsCtrlPressed)
+            {
+                DebugLabel1.ForeColor = Color.Green;
+            }
+            else
+            {
+                DebugLabel1.ForeColor = Color.Red;
+            }
+            if (Project.GetCurrentTool(SelectedLayers).IsShiftPressed)
+            {
+                DebugLabel2.ForeColor = Color.Green;
+            }
+            else
+            {
+                DebugLabel2.ForeColor = Color.Red;
+            }
+
             if (Project.RandomColor)
             {
                 btnRandomColor.BackColor = FLAT_GREEN;
@@ -174,7 +196,7 @@ namespace Paint_2
                     if (currentTool is DotPencil)
                     {
                         DotPencil pencil = currentTool as DotPencil;
-                        pencil.Start(paint_tool_color,paint_tool_width);
+                        pencil.Start(paint_tool_color, paint_tool_width);
                         int precision = 5;
                         for (int i = 0; i <= precision; i++)
                         {
@@ -192,8 +214,8 @@ namespace Paint_2
 
                             Point p1 = new Point(0 - paint_tool_width / 2, 0 - paint_tool_width / 2);
                             Point p2 = new Point(0 - paint_tool_width / 2, size.Height + paint_tool_width / 2);
-                            Point p3 = new Point(size.Width / 2 - paint_tool_width / 2,size.Height + paint_tool_width / 2);
+                            Point p3 = new Point(size.Width / 2 - paint_tool_width / 2, size.Height + paint_tool_width / 2);
-                            Point p4 = new Point(size.Width / 2 - paint_tool_width / 2, 0 - paint_tool_width/2);
+                            Point p4 = new Point(size.Width / 2 - paint_tool_width / 2, 0 - paint_tool_width / 2);
                             Point p5 = new Point(size.Width + paint_tool_width / 2, 0 - paint_tool_width / 2);
                             Point p6 = new Point(size.Width + paint_tool_width / 2, size.Height + paint_tool_width / 2);
                             // I KNOW THIS IS HARD CODED BUT ITS ONLY PURPOSE IS TO BE PRETTY so it does'nt matter 
@@ -221,11 +243,10 @@ namespace Paint_2
                         {
                             if (currentTool is RectanglePencil || currentTool is RectangleBorderPencil || currentTool is EllipsePencil || currentTool is EllipseBorderPencil)
                             {
-                                currentTool.Start(paint_tool_color,paint_tool_width);
+                                currentTool.Start(paint_tool_color, paint_tool_width);
-                                currentTool.Add(new Point(0 + size.Width / 10,0 + size.Height / 10));
+                                currentTool.Add(new Point(0 + size.Width / 10, 0 + size.Height / 10));
                                 currentTool.Add(new Point(size.Width - size.Width / 10, size.Height - size.Height / 10));
                                 currentTool.Stop();
-
                                 currentTool.Paint(map);
                             }
                         }
@@ -284,7 +305,7 @@ namespace Paint_2
             int toolId = lsbTools.SelectedIndex;
             Project.ChangeTool(SelectedLayers, toolId);
             //Yeah that is a little janky but I just want to refresh the tool
-            nupPencilWidth_ValueChanged(sender,e);
+            nupPencilWidth_ValueChanged(sender, e);
             RefreshUi();
         }
 
@@ -468,5 +489,62 @@ namespace Paint_2
             }
             DisplayLayers();
         }
+
+        private void btnSvgExport_Click(object sender, EventArgs e)
+        {
+            FolderBrowserDialog fbd = new FolderBrowserDialog();
+            fbd.Description = "Custom Description";
+
+            if (fbd.ShowDialog() == DialogResult.OK)
+            {
+                string SelectedPath = fbd.SelectedPath;
+
+                if (Project.SaveSvg(SelectedPath, tbxProjectName.Text))
+                {
+                    MessageBox.Show("Svg saved at " + SelectedPath);
+                }
+                else
+                {
+                    MessageBox.Show("Ooops, could not save the SVG in " + SelectedPath);
+                }
+            }
+        }
+
+        private void PaintForm_KeyPress(object sender, KeyPressEventArgs e)
+        {
+            //empty for now
+        }
+
+        private void PaintForm_KeyDown(object sender, KeyEventArgs e)
+        {
+            switch (e.KeyCode)
+            {
+                case Keys.ControlKey:
+                    Project.CtrlDown();
+                    break;
+                case Keys.ShiftKey:
+                    Project.ShiftDown();
+                    break;
+                default:
+                    //send the key to the tools
+                    break;
+            }
+        }
+
+        private void PaintForm_KeyUp(object sender, KeyEventArgs e)
+        {
+            switch (e.KeyCode)
+            {
+                case Keys.ControlKey:
+                    Project.CtrlUp();
+                    break;
+                case Keys.ShiftKey:
+                    Project.ShiftUp();
+                    break;
+                default:
+                    //send the key to the tools
+                    break;
+            }
+        }
     }
 }

Paint_2/PaintTool.cs

@@ -13,7 +13,7 @@ using System.Drawing;
 
 namespace Paint_2
 {
-    public interface PaintTool:ICloneable
+    public interface PaintTool : ICloneable
     {
         List<List<Point>> Drawings { get; set; }
         List<List<Point>> DrawingsRedo { get; set; }
@@ -25,6 +25,8 @@ namespace Paint_2
         bool NeedsFullRefresh { get; set; }
         int Width { get; set; }
         string Name { get; set; }
+        bool IsCtrlPressed { get; set; }
+        bool IsShiftPressed { get; set; }
 
         void Start(Color color, int width);
         void Stop();
@@ -34,6 +36,7 @@ namespace Paint_2
         void Clear();
         List<Color> GetLastColors(int colorNumber);
         void Paint(Bitmap canvas);
+        string PaintSVG();
         string ToString();
     }
 }

Paint_2/PaintToolUtils.cs

@@ -92,6 +92,33 @@ namespace Paint_2
             result.Reverse();
             return result;
         }
+        public List<Point> ConvertRectangleIntoPositive(bool IsCtrlPressed,Point start, Point end)
+        {
+            Point newStart = new Point(start.X, start.Y);
+            Point newEnd = new Point(end.X, end.Y);
+
+            int xDiff = end.X - start.X;
+            int yDiff = end.Y - start.Y;
+
+            Size size = new Size(xDiff, yDiff);
+
+            if (xDiff < 0)
+            {
+                newStart = new Point(end.X, newStart.Y);
+            }
+            if (yDiff < 0)
+            {
+                newStart = new Point(newStart.X, end.Y);
+            }
+
+            if (IsCtrlPressed)
+            {
+                size = new Size(Math.Max(Math.Abs(xDiff), Math.Abs(yDiff)), Math.Max(Math.Abs(xDiff), Math.Abs(yDiff)));
+            }
+
+            newEnd = new Point(newStart.X + Math.Abs(size.Width), newStart.Y + Math.Abs(size.Height));
+            return new List<Point> { newStart, newEnd };
+        }
         public Point Lerp(Point start, Point end, float t)
         {
             int xDiff = end.X - start.X;
@@ -101,5 +128,9 @@ namespace Paint_2
             Point result = new Point(resultX, resultY);
             return result;
         }
+        public string StandartPaintSVG(List<List<Point>> Drawings,List<Color> Colors, List<int> Widths) 
+        {
+            return "COUCOU";
+        }
     }
 }

Paint_2/Pencil.cs

@@ -21,6 +21,8 @@ namespace Paint_2
         private List<List<Point>> _drawingsRedo;
         private PaintToolUtils Utils;
         private bool _needsFullRefresh;
+        private bool _isShiftPressed;
+        private bool _isCtrlPressed;
         private List<Color> _colors;
         private List<Color> _colorsRedo;
         private List<int> _widths;
@@ -35,6 +37,8 @@ namespace Paint_2
         public List<Color> ColorsRedo { get => _colorsRedo; set => _colorsRedo = value; }
         public List<int> Widths { get => _widths; set => _widths = value; }
         public List<int> WidthsRedo { get => _widthsRedo; set => _widthsRedo = value; }
+        public bool IsShiftPressed { get => _isShiftPressed; set => _isShiftPressed = value; }
+        public bool IsCtrlPressed { get => _isCtrlPressed; set => _isCtrlPressed = value; }
         public Color Color { get => _color; set => _color = value; }
         public string Name { get => _name; set => _name = value; }
         public int Width { get => _width; set => _width = value; }
@@ -78,6 +82,37 @@ namespace Paint_2
                 drawingCounter += 1;
             }
         }
+        public string PaintSVG()
+        {
+            string result = "";
+            string newLine = Environment.NewLine;
+
+            //foreach (List<Point> drawing in Drawings)
+            for (int drawCount = 0; drawCount < Drawings.Count; drawCount++)
+            {
+                Point p1;
+                Point p2;
+                List<Point> drawing = Drawings[drawCount];
+                Color color = Colors[drawCount];
+                int width = Widths[drawCount];
+                for (int pointIndex = 0; pointIndex < drawing.Count; pointIndex++)
+                {
+                    if (pointIndex >= 1)
+                    {
+                        p1 = drawing[pointIndex - 1];
+                        p2 = drawing[pointIndex];
+
+                        result += "<ellipse cx=\"" + p2.X + "\" cy=\"" + p2.Y + "\" rx=\"" + width/2 + "\" ry=\"" + width/2 + "\" style=\"fill:rgb(" + color.R + ", " + color.G + ", " + color.B + ");\"/>";
+                        result += newLine;
+                        result += "<line x1=\"" + p1.X + "\" y1=\"" + p1.Y + "\" x2=\"" + p2.X + "\" y2=\"" + p2.Y + "\" style=\"stroke: rgb(" + color.R + ", " + color.G + ", " + color.B + "); stroke-width:" + width + "\"/>";
+                        result += newLine;
+                    }
+
+                }
+            }
+
+            return result;
+        }
         public void Start(Color color, int width)
         {
             Utils.StandartStart(color, width);
@@ -123,5 +158,7 @@ namespace Paint_2
             result.Color = Color;
             return (Object)(result);
         }
+
+
     }
 }

Paint_2/Project.cs

@@ -30,6 +30,7 @@ namespace Paint_2
         private bool _drawing;
         private string _name;
         
+
         public List<PaintTool> AvaibleTools { get => _avaibleTools; set => _avaibleTools = value; }
         //public Sketch CurrentLayer { get => _currentSketch; set => _currentSketch = value; }
         public List<Sketch> Layers { get => _layers; set => _layers = value; }
@@ -272,7 +273,10 @@ namespace Paint_2
         }
         public Bitmap PaintLayers()
         {
-            Bitmap result = new Bitmap(CanvasSize.Width, CanvasSize.Height);
+            Bitmap result = null;
+            if (CanvasSize.Width != 0 && CanvasSize.Height != 0)
+            {
+                result = new Bitmap(CanvasSize.Width, CanvasSize.Height);
                 Graphics gr = Graphics.FromImage(result);
                 foreach (string layerId in LayersToPrint)
                 {
@@ -282,6 +286,7 @@ namespace Paint_2
                         gr.DrawImage(layer.Paint(), Point.Empty);
                     }
                 }
+            }
             return result;
         }
         public void Clear()
@@ -416,5 +421,65 @@ namespace Paint_2
             }
             return result;
         }
+        public void CtrlDown()
+        {
+            foreach (Sketch layer in Layers)
+            {
+                layer.CtrlDown();
+            }
+        }
+        public void CtrlUp()
+        { 
+            foreach (Sketch layer in Layers)
+            {
+                layer.CtrlUp();
+            }
+        }
+        public void ShiftDown()
+        {
+            foreach (Sketch layer in Layers)
+            {
+                layer.ShiftDown();
+            }
+        }
+        public void ShiftUp()
+        {
+            foreach (Sketch layer in Layers)
+            {
+                layer.ShiftUp();
+            }
+        }
+        public string ConvertToSVG()
+        {
+            string fileContent = "";
+            string newLine = Environment.NewLine;
+
+            fileContent += "<svg version=\"1.1\" width=\"100%\" viewbox=\"0 0 "+CanvasSize.Width+" "+CanvasSize.Height+"\" xmlns = \"http://www.w3.org/2000/svg\">";
+            fileContent += newLine;
+
+            foreach (Sketch layer in Layers)
+            {
+                fileContent += "<!-- "+layer.Name+" -->";
+                fileContent += newLine;
+                fileContent += layer.PaintSVG();
+            }
+
+            fileContent += newLine;
+            fileContent += "</svg>";
+            return fileContent;
+        }
+        public bool SaveSvg(string path,string fileName)
+        {
+            bool result = false;
+            if (Directory.Exists(path))
+            {
+                using (StreamWriter sw = File.CreateText(path + "\\" + fileName + ".svg"))
+                {
+                    sw.WriteLine(ConvertToSVG());
+                    result = true;
+                }
+            }
+            return result;
+        }
     }
 }

Paint_2/RectangleBorderPencil.cs

@@ -17,6 +17,8 @@ namespace Paint_2
         private List<List<Point>> _drawings;
         private List<List<Point>> _drawingsRedo;
         private bool _needsFullRefresh;
+        private bool _isShiftPressed;
+        private bool _isCtrlPressed;
         private PaintToolUtils Utils;
         private List<Color> _colors;
         private List<Color> _colorsRedo;
@@ -33,6 +35,8 @@ namespace Paint_2
         public List<Color> ColorsRedo { get => _colorsRedo; set => _colorsRedo = value; }
         public List<int> Widths { get => _widths; set => _widths = value; }
         public List<int> WidthsRedo { get => _widthsRedo; set => _widthsRedo = value; }
+        public bool IsShiftPressed { get => _isShiftPressed; set => _isShiftPressed = value; }
+        public bool IsCtrlPressed { get => _isCtrlPressed; set => _isCtrlPressed = value; }
         public Color Color { get => _color; set => _color = value; }
         public string Name { get => _name; set => _name = value; }
         public int Width { get => _width; set => _width = value; }
@@ -72,38 +76,59 @@ namespace Paint_2
             {
                 if (drawing.Count == 2)
                 {
-                    Point p1 = drawing[0];
+                    Point start = drawing[0];
-                    Point p2 = drawing[1];
+                    Point end = drawing[1];
 
-                    Point start = new Point(0, 0);
+                    List<Point> points;
-                    Point end = new Point(0, 0);
+                    if (drawingCounter == Drawings.Count - 1)
-
-                    if (p2.X > p1.X)
                     {
-                        start.X = p1.X;
+                        points = Utils.ConvertRectangleIntoPositive(IsCtrlPressed, drawing[0], drawing[1]);
-                        end.X = p2.X;
                     }
                     else
                     {
-                        start.X = p2.X;
+                        points = Utils.ConvertRectangleIntoPositive(false, drawing[0], drawing[1]);
-                        end.X = p1.X;
-                    }
-                    if (p2.Y > p1.Y)
-                    {
-                        start.Y = p1.Y;
-                        end.Y = p2.Y;
-                    }
-                    else
-                    {
-                        start.Y = p2.Y;
-                        end.Y = p1.Y;
                     }
 
+                    start = points[0];
+                    end = points[1];
+
                     gr.DrawRectangle(new Pen(Colors[drawingCounter], Widths[drawingCounter]), new Rectangle(start, new Size(end.X - start.X, end.Y - start.Y)));
                 }
                 drawingCounter++;
             }
         }
+        public string PaintSVG()
+        {
+            string result = "";
+            string newLine = Environment.NewLine;
+
+            int drawingCounter = 0;
+            Size pointSize;
+
+            foreach (List<Point> drawing in Drawings)
+            {
+                if (drawing.Count == 2)
+                {
+                    Point start = drawing[0];
+                    Point end = drawing[1];
+
+                    List<Point> points;
+                    if (drawingCounter == Drawings.Count - 1)
+                    {
+                        points = Utils.ConvertRectangleIntoPositive(IsCtrlPressed, drawing[0], drawing[1]);
+                    }
+                    else
+                    {
+                        points = Utils.ConvertRectangleIntoPositive(false, drawing[0], drawing[1]);
+                    }
+
+                    result += "<rect x=\"" + start.X + "\" y=\"" + start.Y + "\" width=\"" + (end.X - start.X) + "\" height=\"" + (end.Y - start.Y) + "\" style=\"stroke:rgb(" + Colors[drawingCounter].R + ", " + Colors[drawingCounter].G + ", " + Colors[drawingCounter].B + ");\" stroke-width=\""+ Widths[drawingCounter]+"\" fill=\"none\"/>";
+                    result += newLine;
+                }
+                drawingCounter++;
+            }
+            return result;
+        }
         public void Start(Color color, int width)
         {
             Utils.StandartStart(color, width);
@@ -114,10 +139,8 @@ namespace Paint_2
         }
         public void Stop()
         {
-            for (int i = 0; i < Drawings.Count; i++)
+            List<Point> myDrawing = Drawings.Last();
-            {
+            Drawings[Drawings.Count - 1] = Utils.ConvertRectangleIntoPositive(IsCtrlPressed, myDrawing[0], myDrawing[1]);
-                List<Point> Drawing = Drawings[i];
-            }
         }
         private Bitmap PostProcessing(List<Point> Drawing, Bitmap bmp, int width, Color color)
         {

Paint_2/RectanglePencil.cs

@@ -17,6 +17,8 @@ namespace Paint_2
         private List<List<Point>> _drawings;
         private List<List<Point>> _drawingsRedo;
         private bool _needsFullRefresh;
+        private bool _isShiftPressed;
+        private bool _isCtrlPressed;
         private PaintToolUtils Utils;
         private List<Color> _colors;
         private List<Color> _colorsRedo;
@@ -36,6 +38,8 @@ namespace Paint_2
         public Color Color { get => _color; set => _color = value; }
         public string Name { get => _name; set => _name = value; }
         public int Width { get => _width; set => _width = value; }
+        public bool IsShiftPressed { get => _isShiftPressed; set => _isShiftPressed = value; }
+        public bool IsCtrlPressed { get => _isCtrlPressed; set => _isCtrlPressed = value; }
 
         public RectanglePencil(string name)
         {
@@ -51,6 +55,7 @@ namespace Paint_2
         }
         public void Add(Point point)
         {
+            
             List<Point> myDrawing = Drawings[Drawings.Count - 1];
             if (myDrawing.Count == 0 || myDrawing.Count == 1)
             {
@@ -66,44 +71,55 @@ namespace Paint_2
         {
             Graphics gr = Graphics.FromImage(canvas);
             int drawingCounter = 0;
-            Size pointSize;
 
             foreach (List<Point> drawing in Drawings)
             {
                 if (drawing.Count == 2)
                 {
-                    Point p1 = drawing[0];
+                    List<Point> points;
-                    Point p2 = drawing[1];
+                    if (drawingCounter == Drawings.Count - 1)
-
-                    Point start = new Point(0,0);
-                    Point end = new Point(0,0);
-
-                    if (p2.X > p1.X)
                     {
-                        start.X = p1.X;
+                        points = Utils.ConvertRectangleIntoPositive(IsCtrlPressed, drawing[0], drawing[1]);
-                        end.X = p2.X;
                     }
                     else
                     {
-                        start.X = p2.X;
+                        points = Utils.ConvertRectangleIntoPositive(false, drawing[0], drawing[1]);
-                        end.X = p1.X;
                     }
-                    if (p2.Y > p1.Y)
+                    gr.FillRectangle(new SolidBrush(Colors[drawingCounter]), new Rectangle(points[0], new Size(points[1].X - points[0].X, points[1].Y - points[0].Y)));
-                    {
-                        start.Y = p1.Y;
-                        end.Y = p2.Y;
-                    }
-                    else
-                    {
-                        start.Y = p2.Y;
-                        end.Y = p1.Y;
-                    }
-
-                    gr.FillRectangle(new SolidBrush(Colors[drawingCounter]), new Rectangle(start, new Size(end.X - start.X, end.Y - start.Y)));
                 }
                 drawingCounter++;
             }
         }
+        public string PaintSVG()
+        {
+            string result = "";
+            string newLine = Environment.NewLine;
+
+            int drawingCounter = 0;
+           
+
+            foreach (List<Point> drawing in Drawings)
+            {
+                if (drawing.Count == 2)
+                {
+                    List<Point> points;
+                    if (drawingCounter == Drawings.Count -1)
+                    {
+                        points = Utils.ConvertRectangleIntoPositive(IsCtrlPressed, drawing[0], drawing[1]);
+                    }
+                    else
+                    {
+                        points = Utils.ConvertRectangleIntoPositive(false, drawing[0], drawing[1]);
+                    }
+                    Point start = points[0];
+                    Point end = points[1];
+                    result += "<rect x=\"" + start.X + "\" y=\"" + start.Y + "\" width=\"" + (end.X - start.X) + "\" height=\"" + (end.Y - start.Y) + "\" style=\"fill:rgb(" + Colors[drawingCounter].R + ", " + Colors[drawingCounter].G + ", " + Colors[drawingCounter].B + ");\"/>";
+                    result += newLine;
+                }
+                drawingCounter++;
+            }
+            return result;
+        }
         public void Start(Color color, int width)
         {
             Utils.StandartStart(color, width);
@@ -114,10 +130,8 @@ namespace Paint_2
         }
         public void Stop()
         {
-            for (int i = 0; i < Drawings.Count; i++)
+            List<Point> myDrawing = Drawings.Last();
-            {
+            Drawings[Drawings.Count - 1] = Utils.ConvertRectangleIntoPositive(IsCtrlPressed,myDrawing[0], myDrawing[1]);
-                List<Point> Drawing = Drawings[i];
-            }
         }
         private Bitmap PostProcessing(List<Point> Drawing, Bitmap bmp, int width, Color color)
         {

Paint_2/Sketch.cs

@@ -30,7 +30,7 @@ namespace Paint_2
         public string Name { get => _name; set => _name = value; }
         public string Id { get => id; set => id = value; }
 
-        public Sketch(string name,Size sketchSize, List<PaintTool> toolList,string guid)
+        public Sketch(string name, Size sketchSize, List<PaintTool> toolList, string guid)
         {
             IsDrawing = false;
             Id = guid;
@@ -52,7 +52,7 @@ namespace Paint_2
                 CurrentTool = null;
             }
         }
-        public Sketch(List<PaintTool> toolList,string guid) : this("Layer 1",new Size(500, 500), toolList,guid)
+        public Sketch(List<PaintTool> toolList, string guid) : this("Layer 1", new Size(500, 500), toolList, guid)
         {
             //empty
         }
@@ -116,6 +116,19 @@ namespace Paint_2
             CurrentTool.Paint(Drawing);
             return Drawing;
         }
+        public string PaintSVG()
+        {
+            string result = "";
+            string newLine = Environment.NewLine;
+
+            foreach (PaintTool tool in ToolList)
+            {
+                result += "<!-- " + tool.Name + " -->";
+                result += newLine;
+                result += tool.PaintSVG();
+            }
+            return result;
+        }
         public Bitmap ForcePaint()
         {
             Drawing = new Bitmap(SketchSize.Width, SketchSize.Height);
@@ -130,6 +143,28 @@ namespace Paint_2
             //Todo
             return Color.FromArgb(0x34, 0xF4, 0xFF);
         }
+        public void CtrlDown()
+        {
+            if (!CurrentTool.IsCtrlPressed)
+            {
+                CurrentTool.IsCtrlPressed = true;
+            }
+        }
+        public void CtrlUp()
+        {
+            CurrentTool.IsCtrlPressed = false;
+        }
+        public void ShiftDown()
+        {
+            if (!CurrentTool.IsShiftPressed)
+            {
+                CurrentTool.IsShiftPressed = true;
+            }
+        }
+        public void ShiftUp()
+        {
+            CurrentTool.IsShiftPressed = false;
+        }
         public override string ToString()
         {
             return Name;