added Canvas

3 files changed, 49 insertions, 12 deletions

diff --git a/src/CS340.Plotter/CS340.Plotter.csproj b/src/CS340.Plotter/CS340.Plotter.csproj
index de15111..7a10161 100644
--- a/src/CS340.Plotter/CS340.Plotter.csproj
+++ b/src/CS340.Plotter/CS340.Plotter.csproj
@@ -7,8 +7,4 @@
     <RootNamespace>Plotter</RootNamespace>
   </PropertyGroup>
 
-  <ItemGroup>
-    <PackageReference Include="System.Windows.Forms.DataVisualization" Version="1.0.0-prerelease.20110.1" />
-  </ItemGroup>
-
 </Project>
\ No newline at end of file
diff --git a/src/CS340.Plotter/Plot.Designer.cs b/src/CS340.Plotter/Plot.Designer.cs
index c1a6b5f..36d9a56 100644
--- a/src/CS340.Plotter/Plot.Designer.cs
+++ b/src/CS340.Plotter/Plot.Designer.cs
@@ -29,20 +29,37 @@ namespace Plotter
         /// </summary>
         private void InitializeComponent()
         {
+            this.Canvas = new System.Windows.Forms.PictureBox();
+            ((System.ComponentModel.ISupportInitialize)(this.Canvas)).BeginInit();
             this.SuspendLayout();
             // 
+            // Canvas
+            // 
+            this.Canvas.Dock = System.Windows.Forms.DockStyle.Fill;
+            this.Canvas.Location = new System.Drawing.Point(0, 0);
+            this.Canvas.Name = "Canvas";
+            this.Canvas.Size = new System.Drawing.Size(604, 368);
+            this.Canvas.TabIndex = 0;
+            this.Canvas.TabStop = false;
+            this.Canvas.SizeChanged += new System.EventHandler(this.Canvas_SizeChanged);
+            this.Canvas.MouseDown += new System.Windows.Forms.MouseEventHandler(this.Canvas_MouseDown);
+            // 
             // Plot
             // 
             this.AutoScaleDimensions = new System.Drawing.SizeF(7F, 15F);
             this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
-            this.ClientSize = new System.Drawing.Size(800, 450);
+            this.ClientSize = new System.Drawing.Size(604, 368);
+            this.Controls.Add(this.Canvas);
             this.Name = "Plot";
-            this.Text = "Form1";
+            this.Text = "Plot";
+            ((System.ComponentModel.ISupportInitialize)(this.Canvas)).EndInit();
             this.ResumeLayout(false);
 
         }
 
         #endregion
+
+        private System.Windows.Forms.PictureBox Canvas;
     }
 }
 
diff --git a/src/CS340.Plotter/Plot.cs b/src/CS340.Plotter/Plot.cs
index 7b274d8..f26978f 100644
--- a/src/CS340.Plotter/Plot.cs
+++ b/src/CS340.Plotter/Plot.cs
@@ -1,21 +1,45 @@
 using System;
-using System.Collections.Generic;
-using System.ComponentModel;
-using System.Data;
 using System.Drawing;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 using System.Windows.Forms;
 
 namespace Plotter
 {
     public partial class Plot : Form
     {
+        Random rand = new Random();
         public Plot()
         {
             InitializeComponent();
+            Render();
+        }
+        void Render()
+        {
+            using var bmp = new Bitmap(Canvas.Width, Canvas.Height);
+            using var gfx = Graphics.FromImage(bmp);
+            using var pen = new Pen(Color.White);
+            // draw one thousand random white lines on a dark blue background
+            gfx.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
+            gfx.Clear(Color.Navy);
+            for (int i = 0; i < 1000; i++)
+            {
+                var pt1 = new Point(rand.Next(bmp.Width), rand.Next(bmp.Height));
+                var pt2 = new Point(rand.Next(bmp.Width), rand.Next(bmp.Height));
+                gfx.DrawLine(pen, pt1, pt2);
+            }
+
+            // copy the bitmap to the picturebox (double buffered)
+            Canvas.Image?.Dispose();
+            Canvas.Image = (Bitmap)bmp.Clone();
+        }
+
+        private void Canvas_SizeChanged(object sender, EventArgs e)
+        {
+            Render();
         }
 
+        private void Canvas_MouseDown(object sender, MouseEventArgs e)
+        {
+            Render();
+        }
     }
 }