Pen Dash Styles : Pens : Graphics C# Source Code

    

/*
User Interfaces in C#: Windows Forms and Custom Controls
by Matthew MacDonald

Publisher: Apress
ISBN: 1590590457
*/

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Drawing.Drawing2D;

namespace GDI_Basics
{
    /// <summary>
    /// Summary description for PenDashStyles.
    /// </summary>
    public class PenDashStyles : System.Windows.Forms.Form
    {
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.Container components = null;

        public PenDashStyles()
        {
            //
            // Required for Windows Form Designer support
            //
            InitializeComponent();

            //
            // TODO: Add any constructor code after InitializeComponent call
            //
        }

        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        protected override void Dispose( bool disposing )
        {
            if( disposing )
            {
                if(components != null)
                {
                    components.Dispose();
                }
            }
            base.Dispose( disposing );
        }

        #region Windows Form Designer generated code
        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            // 
            // PenDashStyles
            // 
            this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
            this.ClientSize = new System.Drawing.Size(500, 398);
            this.Name = "PenDashStyles";
            this.Text = "PenDashStyles";
            this.Resize += new System.EventHandler(this.PenDashStyles_Resize);
            this.Paint += new System.Windows.Forms.PaintEventHandler(this.PenDashStyles_Paint);

        }
        #endregion

        [STAThread]
        static void Main() 
        {
            Application.Run(new PenDashStyles());
        }

        private void PenDashStyles_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
        {
            Pen myPen = new Pen(Color.Blue, 10);
            int y = 20;
            foreach (DashStyle dash in System.Enum.GetValues(typeof(DashStyle)))
            {
                myPen.DashStyle = dash;
                e.Graphics.DrawLine(myPen, 20, y, 100, y);
                e.Graphics.DrawString(dash.ToString(), new Font("Tahoma", 8), Brushes.Black, 120, y - 10);
                y += 30;
            }
            
            y += 10;
            myPen.StartCap = LineCap.Round;
            myPen.EndCap = LineCap.Round;
            
            foreach (DashStyle dash in System.Enum.GetValues(typeof(DashStyle)))
            {
                myPen.DashStyle = dash;
                e.Graphics.DrawLine(myPen, 20, y, 100, y);
                e.Graphics.DrawString(dash.ToString() + " (with round caps)", new Font("Tahoma", 8), Brushes.Black, 120, y - 10);
                y += 30;
            }
        }

        private void PenDashStyles_Resize(object sender, System.EventArgs e)
        {
            this.Invalidate();
        }
    }
}