封装一个打印的公共类，跟童鞋们分享一下
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。
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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)
{
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