c#记事本实验报告.doc

题目：文本编译器课程设计报告姓 名： 学 号： 专 业： 实 验 室： 设计时间：2012年12月31日 2013年01月11日目 录一、系统概要设计1二、系统详细设计1三、系统实现与测试（或调试）5四、分析与总结6参考文献6天津科技大学计算机学院面向对象程序设计课程设计报告一、系统概要设计本实验的目的是建立一个文本编译器，同时介绍控件的用法。首先使用RichTeextBox控件可用来输入和编辑文本。其次是实现剪切板功能。通过剪切板可以完成数据的剪切，复制，粘贴等功能。然后实现保存打开功能。在文件下弹出，新建，打开，关闭，保存。修改字体使用的是字体对话框FontDialog，然后选择指定字体就行了。最后是实现打印功能，PrintDocument组件是用于完成打印的类。最后代码实现所有功能，这就是本实验的设计思路。二、系统详细设计1、新建项目。放置RichTextBox控件到窗体。属性Name=richTextBox1,Dock=Fill,Text=”2、放置MenuStrip控件到窗体。为菜单增加顶级菜单：编辑，Name为mainMenuEdit，为其弹出菜单增加菜单项：剪切、复制、粘贴、撤销，属性Name分别为：menuItemEditCut、menuItemEditCopy、menuItemEditPaste、menuItemEditUndo。为各个菜单项增加单击事件处理函数如下：private void menuItemEditCut_Click(object sender, EventArgs e) richTextBox1.Cut(); private void menuItemEditCopy_Click(object sender, EventArgs e) richTextBox1.Copy(); private void menuItemEditPaste_Click(object sender, EventArgs e) richTextBox1.Paste(); private void menuItemUndo_Click(object sender, EventArgs e) richTextBox1.Undo(); 3、运行，输入一些字符后，选中一段实验复制，剪切，粘贴，撤销等功能。首先是复制：4、实现存取文件功能：顶级菜单的弹出菜单中一般包括如下菜单项：新建、打开、关闭、保存等。首先放置OpenFileDialog控件和SaveFileDialog控件到窗体中。为菜单增加顶级菜单：文件，为其弹出菜单增加菜单项：新建、打开、保存、退出。修改这些菜单的Name属性分别为：mainMenuFile、menuItemFileNew、menuItemFileOpen、menuItemFileSave、menuItemFileExit。在Form1类中定义变量：string s_FileName=”，记录当前编辑的文件名，如果字符串为空，表示还未记录文件名，编辑的文件没有名字，当单击“保存”保存文件时，要请用户输入文件名。为文件“新建”菜单增加单击事件处理函数：private void menuItemFileNew_Click(object sender, EventArgs e) richTextBox1.Text = ; s_FileName = ;/新?建文?件t没?有D文?件t名? 为“打开”菜单增加单击事件处理函数：private void menuItemFileOpen_Click(object sender, EventArgs e) if (openFileDialog1.ShowDialog() = DialogResult.OK) richTextBox1.LoadFile(openFileDialog1.FileName, RichTextBoxStreamType.PlainText); 为“保存”菜单增加单击事件处理函数：private void menuItemFileSave_Click(object sender, EventArgs e) if (saveFileDialog1.ShowDialog() = DialogResult.OK) saveFileDialog1.FilterIndex = 1; s_FileName = saveFileDialog1.FileName; richTextBox1.SaveFile(saveFileDialog1.FileName, RichTextBoxStreamType.PlainText); 文件“退出”菜单增加事件处理函数：private void menuItemFileExit_Click(object sender, EventArgs e) Close(); 修改字体，放置FontDialog控件到窗体，属性Name=fontDialog1.为菜单增加顶级菜单：格式，属性Name为mainMenuModel，为其弹出菜单增加子菜单：字体，属性Name为menuItemModelFont，为“字体”菜单增加单击菜单处理函数如下：private void menuItemModelFont_Click(object sender, EventArgs e) if (fontDialog1.ShowDialog() = DialogResult.OK) richTextBox1.SelectionFont = fontDialog1.Font; 效果如下：实现打印功能：PrintDocument组件是用于完成打印的类。在主窗体文件Form1.cs中的最后一个using语句之后增加语句：using System.IO; /处理文件必须引入的命名空间using System.Drawing.Printing; /打印必须引用的命名空间 在主窗体Form1类中增加变量：StringReader streamToPrint=null。打印的文件为StringReader streamToPrint=null。在主窗体Form1类中增加打印使用的字体的变量：Font printFont。放置PrintDocument控件到窗体，属性name为printDocument1.打印所使用的代码：private void printDocument1_BeginPrint(object sender, PrintPageEventArgs e) printFont = richTextBox1.Font; streamToPrint = new StringReader(richTextBox1.Text); private void printDocument1_PrintPage(object sender, PrintPageEventArgs e) float linesPerPage = 0; float yPos = 0; int count = 0; float leftMargin = e.MarginBounds.Left; float topMargin = e.MarginBounds.Top; string line = null; linesPerPage = e.MarginBounds.Height / printFont.GetHeight(e.Graphics); while (count linesPerPage & (line = streamToPrint.ReadLine() != null) yPos = topMargin + (count * printFont.GetHeight(e.Graphics); e.Graphics.DrawString(line, printFont, Brushes.Black, leftMargin, yPos, new StringFormat(); count+; if (line != null) e.HasMorePages = true; else e.HasMorePages = false; private void 打印?ToolStripMenuItem_Click(object sender, EventArgs e) printDialog1.Document = printDocument1; if (printDialog1.ShowDialog(this) = DialogResult.OK) printDocument1.Print(); private void printDocument1_EndPrint(object sender, PrintPageEventArgs e) if (streamToPrint != null) streamToPrint.Close(); 三、系统实现与测试（或调试）实现代码：namespace 记?事?本? public partial class Form1 : Form string s_FileName = ; StringReader streamToPrint = null; System.Drawing.Font printFont; public Form1() InitializeComponent(); private void richTextBox1_TextChanged(object sender, EventArgs e) private void 剪?切DToolStripMenuItem_Click(object sender, EventArgs e) private void menuItemEditCut_Click(object sender, EventArgs e) richTextBox1.Cut(); private void menuItemEditCopy_Click(object sender, EventArgs e) richTextBox1.Copy(); private void menuItemEditPaste_Click(object sender, EventArgs e) richTextBox1.Paste(); private void menuItemUndo_Click(object sender, EventArgs e) richTextBox1.Undo(); private void openFileDialog1_FileOk(object sender, CancelEventArgs e) private void mainMenuFile_Click(object sender, EventArgs e) private void menuItemFileNew_Click(object sender, EventArgs e) richTextBox1.Text = ; s_FileName = ; private void menuItemFileOpen_Click(object sender, EventArgs e) if (openFileDialog1.ShowDialog() = DialogResult.OK) richTextBox1.LoadFile(openFileDialog1.FileName, RichTextBoxStreamType.PlainText); private void menuItemFileSave_Click(object sender, EventArgs e) if (saveFileDialog1.ShowDialog() = DialogResult.OK) saveFileDialog1.Filter = 纯?文?本?文?件t（*.txt)|*.txt|所有D文?件t（*.*）?|*.*; saveFileDialog1.FilterIndex = 1; s_FileName = saveFileDialog1.FileName; richTextBox1.SaveFile(saveFileDialog1.FileName, RichTextBoxStreamType.PlainText); private void menuItemFileExit_Click(object sender, EventArgs e) Close(); private void fontDialog1_Apply(object sender, EventArgs e) private void menuItemModelFont_Click(object sender, EventArgs e) if (fontDialog1.ShowDialog() = DialogResult.OK) richTextBox1.SelectionFont = fontDialog1.Font; private void printDocument1_BeginPrint(object sender, PrintPageEventArgs e) printFont = richTextBox1.Font;? streamToPrint = new StringReader(richTextBox1.Text); private void printDocument1_PrintPage(object sender, PrintPageEventArgs e) float linesPerPage = 0; float yPos = 0; int count = 0; float leftMargin = e.MarginBounds.Left; float topMargin = e.MarginBounds.Top; string line = null; linesPerPage = e.MarginBounds.Height / printFont.GetHeight(e.Graphics); while (count linesPerPage & (line = streamToPrint.ReadLine() != null) yPos = topMargin + (count * printFont.Get