form1.cs

C#150例

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

namespace Example066_打开的曲线和闭合的曲线
{
	/// <summary>
	/// Form1 的摘要说明。
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
		/// <summary>
		/// 必需的设计器变量。
		/// </summary>
		private System.ComponentModel.Container components = null;

		public Form1()
		{
			//
			// Windows 窗体设计器支持所必需的
			//
			InitializeComponent();

			//
			// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
			//
		}

		/// <summary>
		/// 清理所有正在使用的资源。
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if (components != null) 
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Windows Form Designer generated code
		/// <summary>
		/// 设计器支持所需的方法 - 不要使用代码编辑器修改
		/// 此方法的内容。
		/// </summary>
		private void InitializeComponent()
		{
			// 
			// Form1
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.ClientSize = new System.Drawing.Size(292, 273);
			this.Name = "Form1";
			this.Text = "Form1";
			this.Paint += new System.Windows.Forms.PaintEventHandler(this.Form1_Paint);

		}
		#endregion

		/// <summary>
		/// 应用程序的主入口点。
		/// </summary>
		[STAThread]
		static void Main() 
		{
			Application.Run(new Form1());
		}

		private void Form1_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
		{
			SolidBrush mySolidBrush = new SolidBrush(Color.Aqua);
			Pen myPen=new Pen(Color.Blue);

			GraphicsPath myGraphicsPath = new GraphicsPath();
			myGraphicsPath.AddArc(0, 0, 30, 20, -90, 180);

			Point[] myPointArray = {
									   new Point(15, 20), 
									   new Point(20, 40), 
									   new Point(50, 30)};
			myGraphicsPath.AddCurve(myPointArray);

			
			FontFamily myFontFamily = new FontFamily("Times New Roman");
			StringFormat myStringFormat = new StringFormat();
			PointF myPointF = new PointF(50, 20);
			myGraphicsPath.AddString("a string in a path", myFontFamily, 
				0, 24, myPointF, myStringFormat);

			myGraphicsPath.AddPie(230, 10, 40, 40, 40, 110);

			e.Graphics.DrawPath(myPen, myGraphicsPath);		


			myGraphicsPath= new GraphicsPath();
			myGraphicsPath.AddArc(0, 100, 30, 20, -90, 180);
			
			myPointArray[0]= new Point(15, 120);
			myPointArray[1]= new Point(20, 140);
			myPointArray[2]= new Point(50, 130);
			myGraphicsPath.AddCurve(myPointArray);
			
			myPointF = new PointF(50, 120);
			myGraphicsPath.AddString("a string in a path", myFontFamily, 
				0, 24, myPointF, myStringFormat);
			myGraphicsPath.AddPie(230, 110, 40, 40, 40, 110);
			
			e.Graphics.FillPath(mySolidBrush, myGraphicsPath);
		}
	}
}