Mega Code Archive

 

Categories / C# / 2D Graphics

 

Clip many shapes

using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; using System.Drawing.Drawing2D; public class Form1 : Form {     private System.Windows.Forms.CheckBox chkClipping;   public Form1() {         InitializeComponent();   }   private void checkBox1_CheckedChanged(object sender, EventArgs e)   {     Invalidate();   }     private void Form1_Paint(object sender, PaintEventArgs e)   {     e.Graphics.SmoothingMode = SmoothingMode.AntiAlias;     GraphicsPath path = new GraphicsPath();          Region clippingRegion = new Region(path);     if (chkClipping.Checked) e.Graphics.Clip = clippingRegion;     e.Graphics.ResetClip();          path = new GraphicsPath();     path.AddString("www.rntsoft.com", new FontFamily("Verdana"), 0, 70, new Point(10, 130), new StringFormat());     e.Graphics.DrawPath(Pens.Blue, path);     clippingRegion = new Region(path);     if (chkClipping.Checked) e.Graphics.Clip = clippingRegion;     for (int i = 0; i < 40; i++)     {       e.Graphics.DrawEllipse(Pens.Red, 180 - i*3, 180 - i*3, i*6, i*6);           }     clippingRegion.Dispose();     path.Dispose();   }   private void InitializeComponent()   {     this.chkClipping = new System.Windows.Forms.CheckBox();     this.SuspendLayout();     //      // chkClipping     //      this.chkClipping.AutoSize = true;     this.chkClipping.Checked = true;     this.chkClipping.CheckState = System.Windows.Forms.CheckState.Checked;     this.chkClipping.Location = new System.Drawing.Point(12, 300);     this.chkClipping.Name = "chkClipping";     this.chkClipping.Size = new System.Drawing.Size(80, 17);     this.chkClipping.TabIndex = 0;     this.chkClipping.Text = "Use Clipping";     this.chkClipping.CheckedChanged += new System.EventHandler(this.checkBox1_CheckedChanged);     //      // Form1     //      this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);     this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;     this.ClientSize = new System.Drawing.Size(292, 329);     this.Controls.Add(this.chkClipping);     this.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));     this.Name = "Form1";     this.Text = "Clipping";     this.Paint += new System.Windows.Forms.PaintEventHandler(this.Form1_Paint);     this.ResumeLayout(false);     this.PerformLayout();   }   [STAThread]   static void Main()   {     Application.EnableVisualStyles();     Application.Run(new Form1());   } }