using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.IO;
using System.Drawing.Printing;
public class PrintPreviewDialog : System.Windows.Forms.Form
{
private System.Windows.Forms.TextBox txtFile;
private System.Windows.Forms.Button btnOpenFile;
private System.Windows.Forms.Button btnSaveFile;
private System.ComponentModel.Container components = null;
private System.Windows.Forms.Button btnPageSetup;
private System.Windows.Forms.Button btnPrint;
private System.Windows.Forms.Button btnPrintPreview;
private String strFileName;
private Font currentFont= Font;
private PrintDocument printDocument = new PrintDocument();
private StringReader stringReader;
private OpenFileDialog openFileDialog = new OpenFileDialog();
public PrintPreviewDialog()
{
InitializeComponent();
printDocument.PrintPage += new PrintPageEventHandler(pdPrintPage);
printDocument.BeginPrint += new PrintEventHandler(pdBeginPrint);
printDocument.EndPrint += new PrintEventHandler(pdEndPrint);
}
private void InitializeComponent()
{
this.txtFile = new System.Windows.Forms.TextBox();
this.btnOpenFile = new System.Windows.Forms.Button();
this.btnSaveFile = new System.Windows.Forms.Button();
this.btnPageSetup = new System.Windows.Forms.Button();
this.btnPrint = new System.Windows.Forms.Button();
this.btnPrintPreview = new System.Windows.Forms.Button();
this.SuspendLayout();
//
// txtFile
//
this.txtFile.Anchor = (((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
| System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right);
this.txtFile.Location = new System.Drawing.Point(40, 24);
this.txtFile.Multiline = true;
this.txtFile.Name = "txtFile";
this.txtFile.Size = new System.Drawing.Size(500, 150);
this.txtFile.TabIndex = 0;
this.txtFile.Text = "";
//
// btnOpenFile
//
this.btnOpenFile.Anchor = (System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left);
this.btnOpenFile.Location = new System.Drawing.Point(48, 256);
this.btnOpenFile.Name = "btnOpenFile";
this.btnOpenFile.TabIndex = 1;
this.btnOpenFile.Text = "Open File";
this.btnOpenFile.Click += new System.EventHandler(this.btnOpenFile_Click);
//
// btnSaveFile
//
this.btnSaveFile.Anchor = (System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left);
this.btnSaveFile.Location = new System.Drawing.Point(144, 256);
this.btnSaveFile.Name = "btnSaveFile";
this.btnSaveFile.TabIndex = 2;
this.btnSaveFile.Text = "Save File";
this.btnSaveFile.Click += new System.EventHandler(this.btnSaveFile_Click);
//
// btnPageSetup
//
this.btnPageSetup.Anchor = (System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left);
this.btnPageSetup.Location = new System.Drawing.Point(240, 344);
this.btnPageSetup.Name = "btnPageSetup";
this.btnPageSetup.TabIndex = 8;
this.btnPageSetup.Text = "Page Setup";
this.btnPageSetup.Click += new System.EventHandler(this.btnPageSetup_Click);
//
// btnPrint
//
this.btnPrint.Anchor = (System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left);
this.btnPrint.Location = new System.Drawing.Point(48, 344);
this.btnPrint.Name = "btnPrint";
this.btnPrint.TabIndex = 6;
this.btnPrint.Text = "Print";
this.btnPrint.Click += new System.EventHandler(this.btnPrint_Click);
//
// btnPrintPreview
//
this.btnPrintPreview.Anchor = (System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left);
this.btnPrintPreview.Location = new System.Drawing.Point(144, 344);
this.btnPrintPreview.Name = "btnPrintPreview";
this.btnPrintPreview.Size = new System.Drawing.Size(80, 23);
this.btnPrintPreview.TabIndex = 7;
this.btnPrintPreview.Text = "Print Preview";
this.btnPrintPreview.Click += new System.EventHandler(this.btnPrintPreview_Click);
//
// PrintPreviewDialog
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(592, 398);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.btnPrintPreview,
this.btnPrint,
this.btnPageSetup,
this.btnSaveFile,
this.btnOpenFile,
this.txtFile});
this.ResumeLayout(false);
}
[STAThread]
static void Main()
{
Application.Run(new PrintPreviewDialog());
}
private void btnOpenFile_Click(object sender, System.EventArgs e)
{
openFileDialog.InitialDirectory = @"c:\";
openFileDialog.Filter = "Text files (*.txt)|*.txt|" +
"All files (*.*)|*.*";
openFileDialog.FilterIndex = 1; // 1 based index
if (openFileDialog.ShowDialog() == DialogResult.OK)
{
StreamReader reader = new StreamReader(openFileDialog.FileName);
try
{
strFileName = openFileDialog.FileName;
txtFile.Text = reader.ReadToEnd();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
return;
}
finally
{
reader.Close();
}
}
}
private void btnSaveFile_Click(object sender, System.EventArgs e)
{
SaveFileDialog sfd = new SaveFileDialog();
sfd.InitialDirectory = @"c:\";
sfd.Filter = "Text files (*.txt)|*.txt|" +
"All files (*.*)|*.*";
sfd.FilterIndex = 1; // 1 based index
if (strFileName != null)
sfd.FileName = strFileName;
else
sfd.FileName = "*.txt";
if (sfd.ShowDialog() == DialogResult.OK)
{
StreamWriter writer = new StreamWriter(strFileName,false);
try
{
strFileName = sfd.FileName;
writer.Write(txtFile.Text);
}
catch(Exception ex)
{
MessageBox.Show(ex.Message);
return;
}
finally
{
writer.Close();
}
}
}
private void btnPageSetup_Click(object sender, System.EventArgs e)
{
PageSetupDialog psd = new PageSetupDialog();
psd.Document = printDocument;
psd.ShowDialog();
}
private void btnPrint_Click(object sender, System.EventArgs e)
{
PrintDialog pdlg = new PrintDialog();
pdlg.Document = printDocument;
if (pdlg.ShowDialog() == DialogResult.OK)
{
try
{
printDocument.Print();
}
catch(Exception ex)
{
MessageBox.Show("Print error: " + ex.Message);
}
}
}
private void btnPrintPreview_Click(object sender, System.EventArgs e)
{
PrintPreviewDialog ppdlg = new PrintPreviewDialog();
ppdlg.Document = printDocument;
ppdlg.ShowDialog();
}
private void pdPrintPage(object sender, PrintPageEventArgs e)
{
float linesPerPage = 0;
float verticalOffset = 0;
float leftMargin = e.MarginBounds.Left;
float topMargin = e.MarginBounds.Top;
int linesPrinted = 0;
String strLine = null;
linesPerPage = e.MarginBounds.Height / currentFont.GetHeight(e.Graphics);
while (linesPrinted < linesPerPage &&
((strLine = stringReader.ReadLine())!= null ))
{
verticalOffset = topMargin + (linesPrinted * currentFont.GetHeight(e.Graphics));
e.Graphics.DrawString(strLine, currentFont, Brushes.Black, leftMargin, verticalOffset);
linesPrinted++;
}
if (strLine != null)
e.HasMorePages = true;
else
e.HasMorePages = false;
}
private void pdBeginPrint(object sender, PrintEventArgs e)
{
stringReader = new StringReader(txtFile.Text);
currentFont = txtFile.Font;
}
private void pdEndPrint(object sender, PrintEventArgs e)
{
stringReader.Close();
MessageBox.Show("Done printing.");
}
}
|
