drawingapp.cs

CSharp的MDI窗口事例

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.IO;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters;
using System.Runtime.Serialization.Formatters.Binary;

namespace MDICSharp
{
	
	

	public class frmChild : System.Windows.Forms.Form
	{
		#region frmChild definitions

		private System.Windows.Forms.MenuItem menuZoom;
		private System.Windows.Forms.MenuItem miZoomIn;
		private System.Windows.Forms.MenuItem miZoomOut;
		private System.Windows.Forms.MenuItem menuItem2;
		private System.Windows.Forms.MenuItem miZoomRest;
		private System.Windows.Forms.MenuItem menuHelp;
		private System.Windows.Forms.MainMenu menuMain;
		#endregion
		private System.ComponentModel.IContainer components;

		private Document m_doc; 
		private int nMouseDown = 0;

		string currentFilename ;

		// my member variables
		// enumeration for shape types
		enum ShapeType {cursor, rectangle, ellipse, triangle, line};
		// determines current shape type
		private ShapeType currShape;
		// current shape
		private Shape shape;
		// holds mouse position
		private Point mousePt;
		private Point mousePt1;
		private Point mousePt2;
		// array of shapes
		private ArrayList shapesArr;
		// if some drawing should take place
		bool bDrawAllowed;
		// if a shape is moved
		bool bMovingShape;
		private Brush m_brush = new SolidBrush(Color.YellowGreen);
		private Pen m_pen = new Pen(Color.Tomato);
		private System.Windows.Forms.MenuItem menuItem4;
		private System.Windows.Forms.MenuItem menuItem6;
		private System.Windows.Forms.MenuItem miPenColor;
		private System.Windows.Forms.MenuItem miBrushColor;
		private System.Windows.Forms.MenuItem menuItem7;
		private System.Windows.Forms.MenuItem menuItem8;
		private System.Windows.Forms.MenuItem menuItem9;
		private System.Windows.Forms.MenuItem menuItem11;
		private System.Windows.Forms.MenuItem menuItem12;
		private System.Windows.Forms.MenuItem menuItem5;
		private System.Windows.Forms.MenuItem menuItem10;
		private System.Windows.Forms.MenuItem menuItem13;
		private System.Windows.Forms.MenuItem menuItem14;
		private System.Windows.Forms.MenuItem menuItem15;
		private System.Windows.Forms.MenuItem mnuAbout;
		private System.Windows.Forms.MenuItem mnuHelpTopics;
		private System.Windows.Forms.MenuItem menuShape;
		private System.Windows.Forms.MenuItem miRect;
		private System.Windows.Forms.MenuItem miEllipse;
		private System.Windows.Forms.MenuItem menuItem3;
		private System.Windows.Forms.MenuItem miTriangle;
		private System.Windows.Forms.MenuItem miLine;
		private System.Windows.Forms.ToolBar toolBar1;
		private System.Windows.Forms.ToolBarButton toolBarRect;
		private System.Windows.Forms.ToolBarButton toolBarEllipse;
		private System.Windows.Forms.ToolBarButton toolBarTriangle;
		private System.Windows.Forms.ToolBarButton toolBarLine;
		private System.Windows.Forms.ImageList imageList1;
		
		// file name for load and save methods
		string filename;


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

			// member variables initialization
			currShape = ShapeType.cursor;
			shape = null;
			// mousePt = null;
			// filename = "";
			shapesArr = new ArrayList();
			bDrawAllowed = false;
			bMovingShape = false;
		}

		/// <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()
		{
			this.components = new System.ComponentModel.Container();
			System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(frmChild));
			this.menuMain = new System.Windows.Forms.MainMenu();
			this.menuShape = new System.Windows.Forms.MenuItem();
			this.miRect = new System.Windows.Forms.MenuItem();
			this.miEllipse = new System.Windows.Forms.MenuItem();
			this.menuItem3 = new System.Windows.Forms.MenuItem();
			this.miTriangle = new System.Windows.Forms.MenuItem();
			this.miLine = new System.Windows.Forms.MenuItem();
			this.menuItem4 = new System.Windows.Forms.MenuItem();
			this.miPenColor = new System.Windows.Forms.MenuItem();
			this.miBrushColor = new System.Windows.Forms.MenuItem();
			this.menuItem6 = new System.Windows.Forms.MenuItem();
			this.menuItem7 = new System.Windows.Forms.MenuItem();
			this.menuItem8 = new System.Windows.Forms.MenuItem();
			this.menuItem9 = new System.Windows.Forms.MenuItem();
			this.menuItem11 = new System.Windows.Forms.MenuItem();
			this.menuItem12 = new System.Windows.Forms.MenuItem();
			this.menuItem5 = new System.Windows.Forms.MenuItem();
			this.menuItem10 = new System.Windows.Forms.MenuItem();
			this.menuItem13 = new System.Windows.Forms.MenuItem();
			this.menuItem14 = new System.Windows.Forms.MenuItem();
			this.menuItem15 = new System.Windows.Forms.MenuItem();
			this.menuZoom = new System.Windows.Forms.MenuItem();
			this.miZoomIn = new System.Windows.Forms.MenuItem();
			this.miZoomOut = new System.Windows.Forms.MenuItem();
			this.menuItem2 = new System.Windows.Forms.MenuItem();
			this.miZoomRest = new System.Windows.Forms.MenuItem();
			this.menuHelp = new System.Windows.Forms.MenuItem();
			this.mnuHelpTopics = new System.Windows.Forms.MenuItem();
			this.mnuAbout = new System.Windows.Forms.MenuItem();
			this.toolBar1 = new System.Windows.Forms.ToolBar();
			this.toolBarRect = new System.Windows.Forms.ToolBarButton();
			this.toolBarEllipse = new System.Windows.Forms.ToolBarButton();
			this.toolBarTriangle = new System.Windows.Forms.ToolBarButton();
			this.toolBarLine = new System.Windows.Forms.ToolBarButton();
			this.imageList1 = new System.Windows.Forms.ImageList(this.components);
			this.SuspendLayout();
			// 
			// menuMain
			// 
			this.menuMain.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
																					 this.menuShape,
																					 this.menuItem4,
																					 this.menuZoom,
																					 this.menuHelp});
			// 
			// menuShape
			// 
			this.menuShape.Index = 0;
			this.menuShape.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
																					  this.miRect,
																					  this.miEllipse,
																					  this.menuItem3,
																					  this.miTriangle,
																					  this.miLine});
			this.menuShape.Text = "&Shape";
			// 
			// miRect
			// 
			this.miRect.Index = 0;
			this.miRect.Text = "&Rectangle";
			this.miRect.Click += new System.EventHandler(this.miRect_Click);
			// 
			// miEllipse
			// 
			this.miEllipse.Index = 1;
			this.miEllipse.Text = "&Ellipse";
			this.miEllipse.Click += new System.EventHandler(this.miEllipse_Click);
			// 
			// menuItem3
			// 
			this.menuItem3.Index = 2;
			this.menuItem3.Text = "-";
			// 
			// miTriangle
			// 
			this.miTriangle.Index = 3;
			this.miTriangle.Text = "Triangle";
			this.miTriangle.Click += new System.EventHandler(this.miTriangle_Click);
			// 
			// miLine
			// 
			this.miLine.Index = 4;
			this.miLine.Text = "Line";
			this.miLine.Click += new System.EventHandler(this.miLine_Click);
			// 
			// menuItem4
			// 
			this.menuItem4.Index = 1;
			this.menuItem4.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
																					  this.miPenColor,
																					  this.miBrushColor,
																					  this.menuItem6});
			this.menuItem4.Text = "Settings";
			// 
			// miPenColor
			// 
			this.miPenColor.Index = 0;
			this.miPenColor.Text = "PenColor";
			this.miPenColor.Click += new System.EventHandler(this.miPenColor_Click);
			// 
			// miBrushColor
			// 
			this.miBrushColor.Index = 1;
			this.miBrushColor.Text = "BrushColor";
			this.miBrushColor.Click += new System.EventHandler(this.miBrushColor_Click);
			// 
			// menuItem6
			// 
			this.menuItem6.Index = 2;
			this.menuItem6.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
																					  this.menuItem7,
																					  this.menuItem8,
																					  this.menuItem9,
																					  this.menuItem11,
																					  this.menuItem12,
																					  this.menuItem5,
																					  this.menuItem10,
																					  this.menuItem13,
																					  this.menuItem14,
																					  this.menuItem15});
			this.menuItem6.Text = "Pen Width";
			// 
			// menuItem7
			// 
			this.menuItem7.Index = 0;
			this.menuItem7.Text = "1";
			this.menuItem7.Click += new System.EventHandler(this.menuItem7_Click);
			// 
			// menuItem8
			// 
			this.menuItem8.Index = 1;
			this.menuItem8.Text = "2";
			this.menuItem8.Click += new System.EventHandler(this.menuItem7_Click);
			// 
			// menuItem9
			// 
			this.menuItem9.Index = 2;
			this.menuItem9.Text = "3";
			this.menuItem9.Click += new System.EventHandler(this.menuItem7_Click);
			// 
			// menuItem11
			// 
			this.menuItem11.Index = 3;
			this.menuItem11.Text = "4";
			this.menuItem11.Click += new System.EventHandler(this.menuItem7_Click);
			// 
			// menuItem12
			// 
			this.menuItem12.Index = 4;
			this.menuItem12.Text = "5";
			this.menuItem12.Click += new System.EventHandler(this.menuItem7_Click);
			// 
			// menuItem5
			// 
			this.menuItem5.Index = 5;
			this.menuItem5.Text = "6";
			this.menuItem5.Click += new System.EventHandler(this.menuItem7_Click);
			// 
			// menuItem10
			// 
			this.menuItem10.Index = 6;
			this.menuItem10.Text = "7";
			this.menuItem10.Click += new System.EventHandler(this.menuItem7_Click);
			// 
			// menuItem13
			// 
			this.menuItem13.Index = 7;
			this.menuItem13.Text = "8";
			this.menuItem13.Click += new System.EventHandler(this.menuItem7_Click);
			// 
			// menuItem14
			// 
			this.menuItem14.Index = 8;
			this.menuItem14.Text = "9";
			this.menuItem14.Click += new System.EventHandler(this.menuItem7_Click);
			// 
			// menuItem15
			// 
			this.menuItem15.Index = 9;
			this.menuItem15.Text = "10";
			this.menuItem15.Click += new System.EventHandler(this.menuItem7_Click);
			// 
			// menuZoom
			// 
			this.menuZoom.Index = 2;
			this.menuZoom.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
																					 this.miZoomIn,
																					 this.miZoomOut,
																					 this.menuItem2,
																					 this.miZoomRest});
			this.menuZoom.Text = "&Zoom";
			// 
			// miZoomIn
			// 
			this.miZoomIn.Index = 0;
			this.miZoomIn.Text = "Zoom &In";
			this.miZoomIn.Click += new System.EventHandler(this.miZoomIn_Click);
			// 
			// miZoomOut
			// 
			this.miZoomOut.Index = 1;
			this.miZoomOut.Text = "Zoom &Out";
			// 
			// menuItem2
			// 
			this.menuItem2.Index = 2;
			this.menuItem2.Text = "-";
			// 
			// miZoomRest
			// 
			this.miZoomRest.Index = 3;
			this.miZoomRest.Text = "Zoom &Restore";
			// 
			// menuHelp
			// 
			this.menuHelp.Index = 3;
			this.menuHelp.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
																					 this.mnuHelpTopics,
																					 this.mnuAbout});
			this.menuHelp.Text = "&Help";
			// 
			// mnuHelpTopics
			// 
			this.mnuHelpTopics.Index = 0;
			this.mnuHelpTopics.Text = "HelpTopics";
			this.mnuHelpTopics.Click += new System.EventHandler(this.mnuHelpTopics_Click);
			// 
			// mnuAbout
			// 
			this.mnuAbout.Index = 1;
			this.mnuAbout.Text = "About";
			this.mnuAbout.Click += new System.EventHandler(this.mnuAbout_Click);
			// 
			// toolBar1
			// 
			this.toolBar1.Buttons.AddRange(new System.Windows.Forms.ToolBarButton[] {
																						this.toolBarRect,
																						this.toolBarEllipse,
																						this.toolBarTriangle,
																						this.toolBarLine});
			this.toolBar1.ButtonSize = new System.Drawing.Size(56, 36);
			this.toolBar1.DropDownArrows = true;
			this.toolBar1.ImageList = this.imageList1;
			this.toolBar1.Location = new System.Drawing.Point(0, 0);
			this.toolBar1.Name = "toolBar1";
			this.toolBar1.ShowToolTips = true;
			this.toolBar1.Size = new System.Drawing.Size(524, 42);
			this.toolBar1.TabIndex = 2;
			this.toolBar1.TabStop = true;
			this.toolBar1.Tag = "";
			this.toolBar1.ButtonClick += new System.Windows.Forms.ToolBarButtonClickEventHandler(this.toolBar1_ButtonClick_1);
			// 
			// toolBarRect
			// 
			this.toolBarRect.ImageIndex = 0;
			this.toolBarRect.Text = "Rectangle";
			// 
			// toolBarEllipse
			// 
			this.toolBarEllipse.ImageIndex = 1;
			this.toolBarEllipse.Text = "Ellipse";
			// 
			// toolBarTriangle
			// 
			this.toolBarTriangle.ImageIndex = 2;
			this.toolBarTriangle.Text = "Triangle";
			// 
			// toolBarLine
			// 
			this.toolBarLine.ImageIndex = 3;