form1.cs

苏金明编写的《用VB.NET和VC#.NET开发交互式CAD系统》一书的源代码

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

namespace template
{
	/// <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()
		{
			this.components = new System.ComponentModel.Container();
			this.Size = new System.Drawing.Size(300,300);
			this.Text = "Form1";
		}
		#endregion

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

		private ArrayList ges=new ArrayList();
		private GESelecter.geDrawMode drawm;

		private void Draw(Graphics g)
		{
			CLine line1=new CLine(new PointF(10, 20), new PointF(200, 300));
			CLine line2=new CLine(new PointF(50, 100), new PointF(400, 200));
			CCircle circle1=new CCircle(new PointF(100, 100), new PointF(0, 100));
			CCircle circle2=new CCircle(new PointF(200, 200), new PointF(200, 300));
			line1.Draw(g, drawm);
			line2.Draw(g, drawm);
			circle1.Draw(g, drawm);
			circle2.Draw(g, drawm);
			ges.Add(line1);
			ges.Add(line2);
			ges.Add(circle1);
			ges.Add(circle2);
		}

		protected override void OnPaint(PaintEventArgs e)
		{
			Graphics g= e.Graphics;
			g.FillRectangle(Brushes.White, this.ClientRectangle);
			drawm = GESelecter.geDrawMode.Normal;
			Draw(g);
		}

		protected override void OnMouseDown(MouseEventArgs e)
		{
			Graphics g = this.CreateGraphics();
			PointF aPos=new PointF(e.X, e.Y);
			if (e.Button == MouseButtons.Left)
			{
				for (int i = 0;i<=ges.Count - 1;i++)
				{
					((GESelecter)(ges[i])).Selected(g, aPos);
				}
			}
		}

	}
}