简单文本打印,PrintDocument使用

using System;

using System.Text;

using System.Drawing;

using System.Drawing.Printing;

using System.Windows.Forms;

using System.IO;

namespace TextPrinter

{

public class TextPrinter

{

private string m_Title;

private string m_Context;

private Font m_Font;

private Font m_TitleFont;

private SizeF m_WordSize;

private int m_CurrentPage;

private Rectangle m_PrintableArea;

private string m_LeftContext;

private int m_RowPadding;

private TitleType m_TitleType;

private FooterType m_FooterType;

//private int m_TotalPage;

//private bool m_Prepare;

private string m_FooterFormat;

private PrintDocument printDoc;

public TextPrinter()

{

printDoc = new PrintDocument();

printDoc.PrintPage += new PrintPageEventHandler( pd_PrintPage );

m_Font = SystemFonts.DefaultFont;

m_TitleFont = SystemFonts.CaptionFont;

m_TitleType = TitleType.None;

m_FooterType = FooterType.None;

FooterFormat = "第{0}页";

}

/**/

/// <summary>

/// Report Title

/// </summary>

public string Title

{

get { return m_Title; }

set { m_Title = value; }

}

/**/

/// <summary>

/// Report Context string

/// </summary>

public string Context

{

get { return m_Context; }

set { m_Context = value; }

}

/**/

/// <summary>

/// Report Context Font

/// </summary>

public Font Font

{

get { return m_Font; }

set { m_Font = value; }

}

/**/

/// <summary>

/// Report Title Font

/// </summary>

public Font TitleFont

{

get { return m_TitleFont; }

set { m_TitleFont = value; }

}

/**/

/// <summary>

/// Report Title Type

/// </summary>

public TitleType TitleType

{

get { return m_TitleType; }

set { m_TitleType = value; }

}

/**/

/// <summary>

/// Report Footer Type

/// </summary>

public FooterType FooterType

{

get { return m_FooterType; }

set { m_FooterType = value; }

}

/**/

/// <summary>

/// Report Footer Format. etc "第{0}页"

/// </summary>

public string FooterFormat

{

get { return m_FooterFormat; }

set { m_FooterFormat = value; }

}

//public int TotalPage

//{

// get { return m_TotalPage; }

//}

/**/

/// <summary>

/// Report row padding. 行间距

/// </summary>

public int RowPadding

{

get { return m_RowPadding; }

set { m_RowPadding = value; }

}

/**/

/// <summary>

/// 初始化打印

/// </summary>

private void InitPrint()

{

m_CurrentPage = 1;

}

/**/

/// <summary>

/// 打印机设置

/// </summary>

public void PrintSetting()

{

PrintDialog pd = new PrintDialog();

pd.Document = printDoc;

pd.ShowDialog();

}

/**/

/// <summary>

/// 纸张设置

/// </summary>

public void PageSetting()

{

PageSetupDialog psd = new PageSetupDialog();

psd.Document = printDoc;

psd.ShowDialog();

}

/**/

/// <summary>

/// 预览报表

/// </summary>

public void Preview()

{

InitPrint();

PrintPreviewDialog pdlg = new PrintPreviewDialog();

pdlg.Document = printDoc;

pdlg.WindowState = FormWindowState.Maximized;

pdlg.PrintPreviewControl.Zoom = 1;

//printDoc.Print();

//m_Prepare = true;

pdlg.ShowDialog();

}

/**/

/// <summary>

/// 打印报表

/// </summary>

public void Print()

{

InitPrint();

printDoc.Print();

}

/**/

/// <summary>

/// 从内容Context中读出一行

/// </summary>

/// <param name="g"></param>

/// <returns></returns>

private string GetLine( Graphics g )

{

string tmp = String.Empty;

try

{

SizeF size;

for ( int i = 0; i < m_LeftContext.Length; i++ )

{

size = g.MeasureString( m_LeftContext.Substring( 0, i ), Font );

if ( size.Width > m_PrintableArea.Width )

{

tmp = m_LeftContext.Substring( 0, i - 1 );

m_LeftContext = m_LeftContext.Substring( i - 1 );

return tmp;

}

if ( m_LeftContext.Substring( 0, i ).IndexOf( "/n", 0 ) >= 0 )

{

tmp = m_LeftContext.Substring( 0, i );

m_LeftContext = m_LeftContext.Substring( i );

return tmp;

}

}

tmp = m_LeftContext;

m_LeftContext = String.Empty;

return tmp;

}

finally

{

tmp = tmp.Replace( "/n", "" );

}

}

/**/

/// <summary>

/// 打印主过程

/// </summary>

/// <param name="sender"></param>

/// <param name="e"></param>

private void pd_PrintPage( object sender, PrintPageEventArgs e )

{

int top = 0;

if ( m_CurrentPage == 1 )

{

m_LeftContext = Context;

m_LeftContext = m_LeftContext.Replace( "/r", "" );

m_PrintableArea = e.MarginBounds;

m_WordSize = e.Graphics.MeasureString( "W", Font );

if ( TitleType == TitleType.OnlyFirstPage )

top += DrawTitle( e.Graphics );

}

if ( TitleType == TitleType.AllPage )

top += DrawTitle( e.Graphics );

while ( top < m_PrintableArea.Height - ( int )Math.Floor( m_WordSize.Height ) )

{

string tmp = GetLine( e.Graphics );

e.Graphics.DrawString( tmp, Font, SystemBrushes.MenuText, e.MarginBounds.X, e.MarginBounds.Y + top );

top += ( int )Math.Floor( m_WordSize.Height ) + RowPadding;

}

if ( FooterType != FooterType.None )

DrawFooter( e.Graphics );

e.HasMorePages = m_LeftContext != string.Empty;

m_CurrentPage++;

}

/**/

/// <summary>

/// Print Report Title

/// </summary>

/// <param name="g"></param>

/// <returns></returns>

private int DrawTitle( Graphics g )

{

SizeF size = g.MeasureString( Title, TitleFont );

DrawString( g, Title, TitleFont, SystemBrushes.WindowText, m_PrintableArea, StringAlignment.Center, StringAlignment.Near );

return ( int )Math.Floor( size.Height );

}

/**/

/// <summary>

/// Print Report Footer

/// </summary>

/// <param name="g"></param>

private void DrawFooter( Graphics g )

{

string tmp = string.Empty;

if ( FooterType == FooterType.OnlyPageNum )

tmp = string.Format( FooterFormat, m_CurrentPage );

//else if (FooterType == FooterType.PageNumOfTotal)

// tmp = string.Format("{0} of {1}", m_CurrentPage, 0);

SizeF size = g.MeasureString( tmp, SystemFonts.DefaultFont );

DrawString( g, tmp, SystemFonts.DefaultFont, SystemBrushes.WindowText,

new Rectangle( m_PrintableArea.X, m_PrintableArea.Bottom - ( int )size.Height,

m_PrintableArea.Width, ( int )size.Height ), StringAlignment.Far, StringAlignment.Center );

}

/**/

/// <summary>

/// Draw a string with alignment parameter

/// </summary>

/// <param name="g"></param>

/// <param name="s"></param>

/// <param name="font"></param>

/// <param name="brush"></param>

/// <param name="rect"></param>

/// <param name="alignment"></param>

/// <param name="lineAlignment"></param>

private void DrawString( Graphics g, string s, Font font, Brush brush, Rectangle rect, StringAlignment alignment, StringAlignment lineAlignment )

{

StringFormat sf = new StringFormat();

sf.Alignment = alignment;

sf.LineAlignment = lineAlignment;

g.DrawString( s, font, brush, rect, sf );

}

public static void TestPreview( string pStr )

{

TextPrinter textPrinter = new TextPrinter();

textPrinter.Context = pStr;

textPrinter.Font = new Font( "宋体", 16, FontStyle.Regular, GraphicsUnit.Pixel );

textPrinter.Title = "打印测试页";

textPrinter.TitleFont = new Font( "宋体", 24, FontStyle.Bold, GraphicsUnit.Pixel );

textPrinter.TitleType = TitleType.AllPage;

textPrinter.FooterType = FooterType.OnlyPageNum;

textPrinter.FooterFormat = "Page {0}";

//textPrinter.PrintSetting();

//textPrinter.PageSetting();

textPrinter.Preview();

//textPrinter.Print();

}

}

public enum TitleType

{

None,

OnlyFirstPage,

AllPage

}

public enum FooterType

{

None,

OnlyPageNum

//PageNumOfTotal

}

}