mdiparent.cs

一个简单的文本编辑工具

																						this.toolBarButton8,
																						this.toolBarButton10,
																						this.toolBarButton9});
			this.toolBar1.DropDownArrows = true;
			this.toolBar1.ImageList = this.imageList1;
			this.toolBar1.Name = "toolBar1";
			this.toolBar1.ShowToolTips = true;
			this.toolBar1.Size = new System.Drawing.Size(600, 25);
			this.toolBar1.TabIndex = 1;
			this.toolBar1.ButtonClick += new System.Windows.Forms.ToolBarButtonClickEventHandler(this.toolBar1_ButtonClick);
			// 
			// toolBarButton2
			// 
			this.toolBarButton2.ImageIndex = 1;
			this.toolBarButton2.ToolTipText = "打开";
			// 
			// toolBarButton3
			// 
			this.toolBarButton3.ImageIndex = 2;
			this.toolBarButton3.ToolTipText = "保存";
			// 
			// toolBarButton6
			// 
			this.toolBarButton6.ImageIndex = 4;
			this.toolBarButton6.ToolTipText = "拷贝";
			// 
			// toolBarButton7
			// 
			this.toolBarButton7.ImageIndex = 5;
			this.toolBarButton7.ToolTipText = "粘贴";
			// 
			// toolBarButton8
			// 
			this.toolBarButton8.Style = System.Windows.Forms.ToolBarButtonStyle.Separator;
			// 
			// toolBarButton10
			// 
			this.toolBarButton10.ImageIndex = 7;
			// 
			// toolBarButton9
			// 
			this.toolBarButton9.ImageIndex = 6;
			this.toolBarButton9.ToolTipText = "关于";
			// 
			// imageList1
			// 
			this.imageList1.ColorDepth = System.Windows.Forms.ColorDepth.Depth8Bit;
			this.imageList1.ImageSize = new System.Drawing.Size(16, 16);
			this.imageList1.ImageStream = ((System.Windows.Forms.ImageListStreamer)(resources.GetObject("imageList1.ImageStream")));
			this.imageList1.TransparentColor = System.Drawing.Color.Silver;
			// 
			// mdiClient1
			// 
			this.mdiClient1.Dock = System.Windows.Forms.DockStyle.Fill;
			this.mdiClient1.Location = new System.Drawing.Point(0, 25);
			this.mdiClient1.Name = "mdiClient1";
			this.mdiClient1.TabIndex = 2;
			// 
			// printDocument1
			// 
			this.printDocument1.PrintPage += new System.Drawing.Printing.PrintPageEventHandler(this.printDocument1_PrintPage);
			// 
			// Form1
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.ClientSize = new System.Drawing.Size(600, 393);
			this.Controls.AddRange(new System.Windows.Forms.Control[] {
																		  this.toolBar1,
																		  this.mdiClient1});
			this.Icon = ((System.Drawing.Icon)(resources.GetObject("$this.Icon")));
			this.IsMdiContainer = true;
			this.Menu = this.mainMenu1;
			this.Name = "Form1";
			this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
			this.Text = "MDI Text Editor";
			this.ResumeLayout(false);

		}
		#endregion

		/// <summary>
		/// The main entry point for the application.
		/// </summary>
		[STAThread]
		static void Main() 
		{
			Application.Run(new Form1());
		}		

		private void menuItem2_Click(object sender, System.EventArgs e)
		{
			MDIChild child=new MDIChild();
			child.Text="Document "+ ++WindowCount;
			child.MdiParent=this;
			child.Show();
		}

		private void menuItem3_Click(object sender, System.EventArgs e)
		{
			OpenFileDialog ofDlg=new OpenFileDialog();
			ofDlg.Filter="Rich Text Format(*.rtf)|*.rtf|All Files(*.*)|*.*";
			ofDlg.FilterIndex=1;
			ofDlg.DefaultExt="rtf";
			ofDlg.AddExtension=true;
			ofDlg.RestoreDirectory=true;
			ofDlg.Multiselect=false;
			if(ofDlg.ShowDialog()==DialogResult.OK)
			{
				MDIChild child=new MDIChild();
				child.Text=ofDlg.FileName;
				child.MdiParent=this;
				child.richTextBox1.LoadFile(ofDlg.FileName);
				child.Show();
			}
		}

		private void menuItem7_Click(object sender, System.EventArgs e)
		{
			if(menuItem7.Checked)
			{
				toolBar1.Dock=DockStyle.None;
				toolBar1.Hide();
				menuItem7.Checked=false;
			}
			else
			{
				toolBar1.Dock=DockStyle.Top;
				toolBar1.Show();
				menuItem7.Checked=true;
			}
        }

		private void menuItem10_Click(object sender, System.EventArgs e)
		{
			this.LayoutMdi(MdiLayout.Cascade);
		}

		private void menuItem11_Click(object sender, System.EventArgs e)
		{
			this.LayoutMdi(MdiLayout.TileHorizontal);
		}

		private void menuItem12_Click(object sender, System.EventArgs e)
		{
			this.LayoutMdi(MdiLayout.ArrangeIcons);
		}

		private void menuItem14_Click(object sender, System.EventArgs e)
		{
			MessageBox.Show("多文档文本演示0.1版。\n\n作者　　追风","关于Mdi Text Edit",MessageBoxButtons.OK,MessageBoxIcon.Exclamation);
		}

		private void toolBar1_ButtonClick(object sender, System.Windows.Forms.ToolBarButtonClickEventArgs e)
		{			
			if(e.Button ==toolBarButton1)
				menuItem2_Click(null,null);
			else if(e.Button ==toolBarButton2)
				menuItem3_Click(null,null);
			else if(e.Button ==toolBarButton3)
			{
				if(ActiveMdiChild!=null)
				{
					SaveFileDialog sfDlg=new SaveFileDialog();
					sfDlg.Filter="Rich text format files(*.rtf)|*.rtf|All files(*.*)|*.*";
					sfDlg.FilterIndex=1;
					sfDlg.DefaultExt="rtf";
					sfDlg.AddExtension=true;
					sfDlg.RestoreDirectory=true;
					if(sfDlg.ShowDialog()==DialogResult.OK)
					{
						((MDIChild)ActiveMdiChild).richTextBox1.SaveFile(sfDlg.FileName);
						ActiveMdiChild.Text=sfDlg.FileName;
					}
				}
			}
			else if(e.Button==toolBarButton5)
			{
				if(ActiveMdiChild!=null)
					((MDIChild)ActiveMdiChild).richTextBox1.Cut();
			}
			else if(e.Button==toolBarButton6)
			{
				if(ActiveMdiChild!=null)
					((MDIChild)ActiveMdiChild).richTextBox1.Copy();
			}
			else if(e.Button==toolBarButton7)
			{
				if(ActiveMdiChild!=null)
					((MDIChild)ActiveMdiChild).richTextBox1.Paste();
			}
			else if(e.Button==toolBarButton9)
				menuItem14_Click(null,null);
			else if(e.Button==toolBarButton10)
			{
				if(ActiveMdiChild!=null)
				{
					PrintDialog printdialog=new PrintDialog();
					printdialog.Document=printDocument1;
					lineReader=new StringReader(((MDIChild)ActiveMdiChild).richTextBox1.Text);
					if(printdialog.ShowDialog()==DialogResult.OK)
					{
						try
						{
							printDocument1.Print();
						}
						catch(Exception excep)
						{
							MessageBox.Show(excep.Message,"打印出错",MessageBoxButtons.OK,MessageBoxIcon.Error);
							printDocument1.PrintController.OnEndPrint(printDocument1,new System.Drawing.Printing.PrintEventArgs());
						}
					}
				}
			}
		}

		private void menuItem5_Click(object sender, System.EventArgs e)
		{
			Application.Exit();
		}

		private void printDocument1_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
		{
			Graphics g=e.Graphics;
			float linesPerPage=0;
			float yPosition=0;
			int count=0;
			float leftMargin=e.MarginBounds.Left;
			float topMargin=e.MarginBounds.Top;
			string line=null;
			Font printFont=((MDIChild)ActiveMdiChild).richTextBox1.Font;
			SolidBrush myBrush=new SolidBrush(Color.Black);
			linesPerPage=e.MarginBounds.Height/printFont.GetHeight(g);

			while(count<linesPerPage && ((line=lineReader.ReadLine())!=null))
			{
				yPosition=topMargin+(count*printFont.GetHeight(g));
				g.DrawString(line,printFont,myBrush,leftMargin,yPosition,new StringFormat());
				count++;
			}

			if(line!=null)
				e.HasMorePages=true;
			else
				e.HasMorePages=false;
		}	
	}
}