封装一个打印的公共类，跟童鞋们分享一下

浅浅的花香味﹌ 2024-02-19 17:09 14阅读 0赞

ImagePrinter 类是封装好的打印类，打印前需要调用 public bool PrinterReady(Bitmap printContent) 方法传入一个图片文件，

之后就可以调用 PrintView() 进行打印浏览，调用 PrintOut() 就可以打印了。

ExpressPrinter 类是调用 ImagePrinter 打印封装类的一个实例，旨在与看看怎么使用GDI+绘制需要打印的内容和字体。

================================================

using System;  
using System.Collections.Generic;  
using System.Drawing.Imaging;  
using System.Linq;  
using System.Text;  
using System.Drawing;  
using System.Windows.Forms;  
using System.Drawing.Printing;  
using Lib.Biz.ClientService;  
using Lib.Utility.Extension;  
using PrintOrder.Utility;  
  
  
namespace PrintOrder.ExpressPrinter.PrintDoc  
\{  
/// <summary>  
/// 打印图片内容  
/// </summary>  
public class ExpressPrinter  
\{  
/// <summary>  
/// 创建快递单打印对象实例  
/// </summary>  
/// <param name="printerName">打印机名称，如果为空将使用默认打印机</param>  
/// <param name="template">打印模板</param>  
/// <param name="items">打印项</param>  
/// <param name="isCoordinateRule">是否打印定位标尺</param>  
public ExpressPrinter(string printerName, Print\_Template template, List<Print\_Item> items, bool isCoordinateRule)  
\{  
m\_template = template;  
m\_items = items;  
m\_print = new ImagePrinter(printerName);  
m\_isCoordinateRule = isCoordinateRule;  
InitPrinter();  
\}  
\#region 变量  
  
  
private Print\_Template m\_template;  
private List<Print\_Item> m\_items;  
private Bitmap m\_bitmap = new Bitmap(10, 10);  
private Brush m\_brush = new SolidBrush(Color.Black);  
private ImagePrinter m\_print = null;  
private bool m\_isCoordinateRule = false;  
\#endregion  
/// <summary>  
/// 设置纸张大小  
/// </summary>  
private void SetPrintPageSize()  
\{  
//使用百分之一英寸为单位重新创建绘图图面  
using (Graphics g = Graphics.FromImage(m\_bitmap))  
\{  
//注：使用百分之一为单位  
SizeF sizeF = new SizeF(  
CommonMethod.PixelsToInches(m\_template.Width,g.DpiX)\*100,  
CommonMethod.PixelsToInches(m\_template.Height,g.DpiY)\*100);  
Size size = Size.Ceiling(sizeF);  
m\_print.DefaultPaperSize = new PaperSize("NewPage", size.Width,size.Height);  
\}  
m\_print.DefaultMargins = new Margins(0, 0, 0, 0);  
m\_print.PrintDocName = string.Format("\{0\}(\{1\})",m\_template.TemplateName,m\_template.Modifier);  
\}  
/// <summary>  
/// 打印前初始化  
/// </summary>  
private void InitPrinter()  
\{  
SetPrintPageSize(); //设置纸张大小  
m\_bitmap = new Bitmap(m\_template.Width, m\_template.Height);  
Func<Print\_Item, Font> getFont = (o =>  
\{  
FontStyle fontStyle = FontStyle.Regular;  
if (o.FontBold == 1)  
fontStyle = fontStyle | FontStyle.Bold;  
if (o.FontItalic == 1)  
fontStyle = fontStyle | FontStyle.Italic;  
if (o.FontStrikeout == 1)  
fontStyle = fontStyle | FontStyle.Strikeout;  
if (o.FontUnderline == 1)  
fontStyle = fontStyle | FontStyle.Underline;  
Font font = new Font(o.FontName, o.FontSize, fontStyle);  
return font;  
\});  
using (Graphics g = Graphics.FromImage(m\_bitmap))  
\{  
g.PageUnit = GraphicsUnit.Pixel;  
//填充数据到图片模板（位置要在制作图片模板的时候度量好）  
g.FillRectangle(Brushes.White, 0f, 0f  
,m\_template.Width  
,m\_template.Height);  
//测试纸张大小  
//this.DrawTestRectangle(g);  
if (m\_isCoordinateRule)  
\{  
TestPageSize(g);  
\}  
foreach (Print\_Item item in m\_items)  
\{  
g.DrawString(  
item.Text  
, getFont(item)  
, Brushes.Black  
, new RectangleF(  
item.Offset\_X + m\_template.Offset\_X //设置全局打印偏移 X 坐标  
,item.Offset\_Y + m\_template.Offset\_Y //设置全局打印偏移 Y 坐标  
,item.Width  
,item.Height));  
\}  
g.Dispose();  
\}  
//m\_bitmap.Save(@"D:\\WorkTest\\temp\\express.jpg");  
m\_print.PrinterReady(m\_bitmap);  
\}  
  
  
private void DrawTestRectangle(Graphics g)  
\{  
g.PageUnit = GraphicsUnit.Pixel;  
SizeF size = new SizeF(  
Utility.CommonMethod.MillimetersToPixel(30, g.DpiX)  
, Utility.CommonMethod.MillimetersToPixel(30, g.DpiY));  
g.DrawRectangle(new Pen(Color.Black, 1), 50, 50, size.Width, size.Height);  
\}  
/// <summary>  
/// 打印标尺  
/// </summary>  
private void TestPageSize(Graphics g)  
\{  
g.PageUnit = GraphicsUnit.Pixel;  
//八个定位方格  
Size size = new Size(20,20);  
Point ltop = new Point(0,0);  
Point rtop = new Point(m\_template.Width - size.Width, 0);  
Point ldwn = new Point(0,m\_template.Height - size.Height);  
Point rdwn = new Point(m\_template.Width - size.Width, m\_template.Height - size.Height);  
Point tmdio = new Point(m\_template.Width/2-size.Width/2,0);  
Point dmdio = new Point(m\_template.Width / 2 - size.Width/ 2, m\_template.Height - size.Height);  
Point lmdio = new Point(0, m\_template.Height / 2 - size.Height / 2);  
Point rmdio = new Point(m\_template.Width - size.Width, m\_template.Height / 2 - size.Height / 2);  
//Point mdio = new Point(m\_template.Width / 2 - size.Width / 2, m\_template.Height / 2 - size.Height / 2);  
//左下和右上的限度矩形  
Size tRec = new Size(m\_template.Width/4,10);  
Size lRec = new Size(10, m\_template.Height / 4);  
Point ldRec = new Point(0, lmdio.Y + size.Height + lRec.Height);//左下  
Point rtRec = new Point(tmdio.X + size.Width + tRec.Width, 0);//右上  
//十字中心  
Size tdCrossSize = new Size(10,50);  
Size lrCrossSize = new Size(50,10);  
Point tdCrossPnt = new Point(m\_template.Width / 2 - tdCrossSize.Width / 2, m\_template.Height / 2 - tdCrossSize.Height/2);  
Point lrCrossPnt = new Point(m\_template.Width / 2 - lrCrossSize.Width / 2, m\_template.Height / 2 - lrCrossSize.Height / 2);  
  
g.FillRectangle(m\_brush, new Rectangle(ltop, size));  
g.FillRectangle(m\_brush, new Rectangle(rtop, size));  
g.FillRectangle(m\_brush, new Rectangle(ldwn, size));  
g.FillRectangle(m\_brush, new Rectangle(rdwn, size));  
g.FillRectangle(m\_brush, new Rectangle(tmdio, size));  
g.FillRectangle(m\_brush, new Rectangle(dmdio, size));  
g.FillRectangle(m\_brush, new Rectangle(lmdio, size));  
g.FillRectangle(m\_brush, new Rectangle(rmdio, size));  
  
g.FillRectangle(m\_brush, new Rectangle(rtRec, tRec));  
g.FillRectangle(m\_brush, new Rectangle(ldRec, lRec));  
  
  
g.FillRectangle(m\_brush, new Rectangle(tdCrossPnt, tdCrossSize));  
g.FillRectangle(m\_brush, new Rectangle(lrCrossPnt, lrCrossSize));  
  
  
string defaultSize = string.Format("纸张:\{0\}X\{1\}(px),\{2\}X\{3\}(mm)"  
, CommonMethod.InchesToPixels(m\_print.DefaultPaperSize.Width / 100f,g.DpiX)  
, CommonMethod.InchesToPixels(m\_print.DefaultPaperSize.Height / 100f, g.DpiY)  
, CommonMethod.PixelToMillimeters(m\_print.DefaultPaperSize.Width,g.DpiX)  
, CommonMethod.PixelToMillimeters(m\_print.DefaultPaperSize.Height, g.DpiY));  
g.DrawString(defaultSize,new Font("宋体",9), m\_brush,50,50);  
  
  
string defaultMargin = string.Format("页边距:上=\{0\},下=\{1\},左=\{2\},右=\{3\}"  
, CommonMethod.InchesToPixels(m\_print.DefaultMargins.Top, g.DpiY)  
, CommonMethod.InchesToPixels(m\_print.DefaultMargins.Bottom, g.DpiY)  
, CommonMethod.InchesToPixels(m\_print.DefaultMargins.Left/ 100f,g.DpiX)  
, CommonMethod.InchesToPixels(m\_print.DefaultMargins.Right/ 100f,g.DpiX));  
g.DrawString(defaultMargin, new Font("宋体", 12), m\_brush, 50, 70);  
  
  
string lrCrossStr = string.Format("左右各\{0\}毫米"  
, CommonMethod.PixelToMillimeters(m\_template.Width / 2F, g.DpiX));  
g.DrawString(lrCrossStr, new Font("宋体", 12)  
, m\_brush  
, m\_print.DefaultPaperSize.Width / 3F  
, m\_print.DefaultPaperSize.Height / 2 + 30);  
string tdCrossStr = string.Format("上下各\{0\}毫米"  
, CommonMethod.PixelToMillimeters(m\_template.Height / 2F, g.DpiY));  
g.DrawString(tdCrossStr, new Font("宋体", 12)  
, m\_brush  
, m\_print.DefaultPaperSize.Width / 3F  
, m\_print.DefaultPaperSize.Height / 2 + 45);  
\}  
  
  
  
  
\#region 公共方法  
/// <summary>  
/// 打印预览  
/// </summary>  
/// <returns></returns>  
public DialogResult PrintProview()  
\{  
return m\_print.PrintView();  
\}  
/// <summary>  
/// 开始打印  
/// </summary>  
public void PrintOut()  
\{  
m\_print.PrintOut();  
\}  
\#endregion  
\}  
\}

======================================================

using System;  
using System.Collections.Generic;  
using System.Linq;  
using System.Text;  
using System.Drawing;  
using System.Windows.Forms;  
using System.Drawing.Printing;  
using Lib.Utility.Extension;  
using PrintOrder.Utility;  
  
  
namespace PrintOrder.ExpressPrinter.PrintDoc  
\{  
/// <summary>  
/// 打印图片内容  
/// </summary>  
public class ImagePrinter:IDisposable  
\{  
public ImagePrinter(string printerName)  
\{  
if (!printerName.IsNullOrEmpty())  
this.DefaultPrinterName = printerName;  
//打印事件设置  
m\_printDoc.PrintPage += new PrintPageEventHandler(this.m\_printDoc\_PrintPage);  
\}  
  
  
\#region 变量  
/// <summary>  
/// 打印内容  
/// </summary>  
protected Bitmap m\_printContent = null;  
/// <summary>  
/// 打印机名称  
/// </summary>  
protected string m\_printerName = string.Empty;  
/// <summary>  
/// 打印预览  
/// </summary>  
PrintPreviewDialog m\_printPreview = new PrintPreviewDialog();  
/// <summary>  
/// 待打印文档  
/// </summary>  
PrintDocument m\_printDoc = new PrintDocument();  
\#endregion  
  
  
\#region 属性  
/// <summary>  
/// 待打印文档名，打印队列中的显示值  
/// </summary>  
/// <remarks>创建人员(日期):★草青工作室★(111216 12:13)</remarks>  
public string PrintDocName  
\{  
set \{ m\_printDoc.DocumentName = value; \}  
get \{ return m\_printDoc.DocumentName ; \}  
\}  
/// <summary>  
/// 获取或设置默认纸张名称  
/// </summary>  
/// <remarks>创建人员(日期):★草青工作室★(111216 12:13)</remarks>  
public string DefaultPrinterName  
\{  
set \{ m\_printDoc.DefaultPageSettings.PrinterSettings.PrinterName = value; \}  
get \{ return m\_printDoc.DefaultPageSettings.PrinterSettings.PrinterName; \}  
\}  
/// <summary>  
/// 获取或设置默认纸张大小  
/// </summary>  
/// <remarks>创建人员(日期):★草青工作室★(111216 12:13)</remarks>  
public PaperSize DefaultPaperSize  
\{  
set \{ m\_printDoc.DefaultPageSettings.PaperSize = value; \}  
get \{ return m\_printDoc.DefaultPageSettings.PaperSize; \}  
\}  
/// <summary>  
/// 获取或设置默认页边距  
/// </summary>  
/// <remarks>创建人员(日期):★草青工作室★(111216 12:13)</remarks>  
public Margins DefaultMargins  
\{  
set \{ m\_printDoc.DefaultPageSettings.Margins = value; \}  
get \{ return m\_printDoc.DefaultPageSettings.Margins; \}  
\}  
  
\#endregion  
  
  
\#region 方法  
/// <summary>  
/// 准备打印  
/// </summary>  
/// <param name="printContent">打印内容</param>  
/// <returns></returns>  
/// <remarks>创建人员(日期):★草青工作室★(111217 16:45)</remarks>  
public bool PrinterReady(Bitmap printContent)  
\{  
m\_printContent = printContent;  
//打印事件设置  
m\_printDoc.PrintPage += new PrintPageEventHandler(this.m\_printDoc\_PrintPage);  
return true;  
\}  
/// <summary>  
/// 打印浏览  
/// </summary>  
/// <remarks>创建人员(日期):★草青工作室★(111215 21:50)</remarks>  
public DialogResult PrintView()  
\{  
//打印预览  
PrintPreviewDialog ppd = new PrintPreviewDialog();  
ppd.Document = m\_printDoc;  
return ppd.ShowDialog();  
\}  
/// <summary>  
/// 开始打印  
/// </summary>  
/// <remarks>创建人员(日期):★草青工作室★(111215 21:50)</remarks>  
public void PrintOut()  
\{  
try  
\{  
m\_printDoc.Print();  
\}  
catch (Exception ex)  
\{  
//RegisterLog.ExceptionsStack.RegisterError(ex);  
MessageBox.Show(ex.Message, "打印出错,详见异常日志！", MessageBoxButtons.OK, MessageBoxIcon.Error);  
m\_printDoc.PrintController.OnEndPrint(m\_printDoc, new PrintEventArgs());  
\}  
\}  
/// <summary>  
/// 打印事件处理  
/// </summary>  
/// <param name="sender"></param>  
/// <param name="e"></param>  
private void m\_printDoc\_PrintPage(object sender, PrintPageEventArgs e)  
\{  
e.Graphics.PageUnit = GraphicsUnit.Pixel;  
//目标大小(注：打印区域使用的是‘百分之一英寸’为单位)  
int x = e.MarginBounds.X;  
int y = e.MarginBounds.Y;  
float width = CommonMethod.InchesToPixels((float)Math.Round(e.MarginBounds.Width/100.0,2),e.Graphics.DpiX);  
float height = CommonMethod.InchesToPixels((float)Math.Round(e.MarginBounds.Height / 100.0, 2), e.Graphics.DpiY);  
RectangleF destRectF = new RectangleF(x, y, width, height);//目标大小  
//原图大小  
Rectangle srcRectF = new Rectangle(0, 0, m\_printContent.Width, m\_printContent.Height);  
//绘制打印内容  
e.Graphics.DrawImage(m\_printContent  
, destRectF, srcRectF  
, GraphicsUnit.Pixel);  
\}  
  
  
\#endregion  
  
  
  
  
public void Dispose()  
\{  
if(m\_printDoc != null)  
m\_printDoc.PrintPage -= new PrintPageEventHandler(this.m\_printDoc\_PrintPage);  
\}  
\}  
\}

使用的公共方法：http://my.csdn.net/xxj\_jing/code/detail/41360

原文地址：http://blog.csdn.net/xxj\_jing/article/details/8685728