在批量打印商品标签时一般都要加上条码或图片,而这类应用大多是使用斑马打印机,所以我也遇到了怎么打印的问题。
一种办法是用标签设计软件做好模板,在标签设计软件中打印,这种办法不用写代码,但对我来说觉得不能接受,所以尝试代码解决问题。
网上搜索一番,找不到什么资料,基本都是说发送ZPL、EPL指令到打印机,而且还是COM/LPT口连接打印机。后来研究.net的打印类库,发现是用绘图方式打印至打印机的,也叫GDI打印,于是思路有了点突破,那我可以用报表工具画好标签,运行报表时,把结果输出位图,再发送至打印机。
后来又找到一种更好的办法,利用标签设计软件做好模板,打印至本地文件,把其中的ZPL、EPL指令拷贝出来,替换其中动态变化的内容为变量名,做成一个模板文本,在代码中动态替换变量,再把指令输出至打印机。
折腾了几天,终于把这两种思路都实现了,顺便解决了USB接口打印机的ZPL、EPL指令发送问题。
今天有点困,改天再详细讲解一下这两种思路的具体实现。
==============================================================================================================
如何获取标签设计软件输出至打印的ZPL指令?安装好打印机驱动,修改打印机端口,新建一个打印机端口,类型为本地端口,端口名称设置为C:printer.log,再用标签设计软件打印一次,此文件中就有ZPL指令了。
==============================================================================================================
2012-06-02:发布代码ZebraPrintHelper.cs。
==============================================================================================================
2013-01-17:发布代码ZebraPrintHelper.cs,修正BUG,新增TCP打印支持Zebra无线打印QL320+系列打印机。已经生产环境实际应用,支持POS小票、吊牌、洗水唛、条码、文本混合标签打印。因涉及公司源码,只能截图VS解决方案给大家看。
==============================================================================================================
ZebraPrintHelper类代码:
- using System;
- using System.Collections.Generic;
- using System.Drawing;
- using System.Drawing.Imaging;
- using System.IO;
- using System.IO.Ports;
- using System.Net.Sockets;
- using System.Runtime.InteropServices;
- using System.Text;
- namespace Umisky.BarcodePrint.Core {
- /// <summary>
- /// 斑马打印助手,支持LPT/COM/USB/TCP四种模式,适用于标签、票据、条码打印。
- /// </summary>
- public static class ZebraPrintHelper {
- #region 定义私有字段
- /// <summary>
- /// 线程锁,防止多线程调用。
- /// </summary>
- private static object SyncRoot = new object();
- /// <summary>
- /// ZPL压缩字典
- /// </summary>
- private static List<KeyValue> compressDictionary = new List<KeyValue>();
- #endregion
- #region 定义属性
- public static float TcpLabelMaxHeightCM { get; set; }
- public static int TcpPrinterDPI { get; set; }
- public static string TcpIpAddress { get; set; }
- public static int TcpPort { get; set; }
- public static int Copies { get; set; }
- public static int Port { get; set; }
- public static string PrinterName { get; set; }
- public static bool IsWriteLog { get; set; }
- public static DeviceType PrinterType { get; set; }
- public static ProgrammingLanguage PrinterProgrammingLanguage { get; set; }
- /// <summary>
- /// 日志保存目录,WEB应用注意不能放在BIN目录下。
- /// </summary>
- public static string LogsDirectory { get; set; }
- public static byte[] GraphBuffer { get; set; }
- private static int GraphWidth { get; set; }
- private static int GraphHeight { get; set; }
- private static int RowSize {
- get {
- return (((GraphWidth) + 31) >> 5) << 2;
- }
- }
- private static int RowRealBytesCount {
- get {
- if ((GraphWidth % 8) > 0) {
- return GraphWidth / 8 + 1;
- }
- else {
- return GraphWidth / 8;
- }
- }
- }
- #endregion
- #region 静态构造方法
- static ZebraPrintHelper() {
- initCompressCode();
- Port = 1;
- GraphBuffer = new byte[0];
- IsWriteLog = false;
- LogsDirectory = "logs";
- PrinterProgrammingLanguage = ProgrammingLanguage.ZPL;
- }
- private static void initCompressCode() {
- //G H I J K L M N O P Q R S T U V W X Y 对应1,2,3,4……18,19。
- //g h i j k l m n o p q r s t u v w x y z 对应20,40,60,80……340,360,380,400。
- for (int i = 0; i < 19; i++) {
- compressDictionary.Add(new KeyValue() { Key = Convert.ToChar(71 + i), Value = i + 1 });
- }
- for (int i = 0; i < 20; i++) {
- compressDictionary.Add(new KeyValue() { Key = Convert.ToChar(103 + i), Value = (i + 1) * 20 });
- }
- }
- #endregion
- #region 日志记录方法
- private static void WriteLog(string text, LogType logType) {
- string endTag = string.Format(" {0} ", new string('=', 80));
- string path = string.Format("{0}\{1}-{2}.log", LogsDirectory, DateTime.Now.ToString("yyyy-MM-dd"), logType);
- if (!Directory.Exists(LogsDirectory)) {
- Directory.CreateDirectory(LogsDirectory);
- }
- if (logType == LogType.Error) {
- File.AppendAllText(path, string.Format("{0}{1}", text, endTag), Encoding.UTF8);
- }
- if (logType == LogType.Print) {
- File.AppendAllText(path, string.Format("{0}{1}", text, endTag), Encoding.UTF8);
- }
- }
- private static void WriteLog(byte[] bytes, LogType logType) {
- string endTag = string.Format(" {0} ", new string('=', 80));
- string path = string.Format("{0}\{1}-{2}.log", LogsDirectory, DateTime.Now.ToString("yyyy-MM-dd"), logType);
- if (!Directory.Exists(LogsDirectory)) {
- Directory.CreateDirectory(LogsDirectory);
- }
- if (logType == LogType.Error) {
- File.AppendAllText(path, string.Format("{0}{1}", Encoding.UTF8.GetString(bytes), endTag), Encoding.UTF8);
- }
- if (logType == LogType.Print) {
- File.AppendAllText(path, string.Format("{0}{1}", Encoding.UTF8.GetString(bytes), endTag), Encoding.UTF8);
- }
- }
- #endregion
- #region 封装方法,方便调用。
- public static bool PrintWithCOM(string cmd, int port, bool isWriteLog) {
- PrinterType = DeviceType.COM;
- Port = port;
- IsWriteLog = isWriteLog;
- return PrintCommand(cmd);
- }
- public static bool PrintWithCOM(byte[] bytes, int port, bool isWriteLog) {
- PrinterType = DeviceType.COM;
- Port = port;
- IsWriteLog = isWriteLog;
- return PrintGraphics(bytes);
- }
- public static bool PrintWithLPT(string cmd, int port, bool isWriteLog) {
- PrinterType = DeviceType.LPT;
- Port = port;
- IsWriteLog = isWriteLog;
- return PrintCommand(cmd);
- }
- public static bool PrintWithLPT(byte[] bytes, int port, bool isWriteLog) {
- PrinterType = DeviceType.LPT;
- Port = port;
- IsWriteLog = isWriteLog;
- return PrintGraphics(bytes);
- }
- public static bool PrintWithTCP(string cmd, bool isWriteLog) {
- PrinterType = DeviceType.TCP;
- IsWriteLog = isWriteLog;
- return PrintCommand(cmd);
- }
- public static bool PrintWithTCP(byte[] bytes, bool isWriteLog) {
- PrinterType = DeviceType.TCP;
- IsWriteLog = isWriteLog;
- return PrintGraphics(bytes);
- }
- public static bool PrintWithDRV(string cmd, string printerName, bool isWriteLog) {
- PrinterType = DeviceType.DRV;
- PrinterName = printerName;
- IsWriteLog = isWriteLog;
- return PrintCommand(cmd);
- }
- public static bool PrintWithDRV(byte[] bytes, string printerName, bool isWriteLog) {
- PrinterType = DeviceType.DRV;
- PrinterName = printerName;
- IsWriteLog = isWriteLog;
- return PrintGraphics(bytes);
- }
- #endregion
- #region 打印ZPL、EPL、CPCL、TCP指令
- public static bool PrintCommand(string cmd) {
- lock (SyncRoot) {
- bool result = false;
- try {
- switch (PrinterType) {
- case DeviceType.COM:
- result = comPrint(Encoding.Default.GetBytes(cmd));
- break;
- case DeviceType.LPT:
- result = lptPrint(Encoding.Default.GetBytes(cmd));
- break;
- case DeviceType.DRV:
- result = drvPrint(Encoding.Default.GetBytes(cmd));
- break;
- case DeviceType.TCP:
- result = tcpPrint(Encoding.Default.GetBytes(cmd));
- break;
- }
- if (!string.IsNullOrEmpty(cmd) && IsWriteLog) {
- WriteLog(cmd, LogType.Print);
- }
- }
- catch (Exception ex) {
- //记录日志
- if (IsWriteLog) {
- WriteLog(string.Format("{0} => {1} {2}", DateTime.Now, ex.Message, ex), LogType.Error);
- }
- throw new Exception(ex.Message, ex);
- }
- finally {
- GraphBuffer = new byte[0];
- }
- return result;
- }
- }
- #endregion
- #region 打印图像
- public static bool PrintGraphics(byte[] graph) {
- lock (SyncRoot) {
- bool result = false;
- try {
- GraphBuffer = graph;
- byte[] cmdBytes = new byte[0];
- switch (PrinterProgrammingLanguage) {
- case ProgrammingLanguage.ZPL:
- cmdBytes = getZPLBytes();
- break;
- case ProgrammingLanguage.EPL:
- cmdBytes = getEPLBytes();
- break;
- case ProgrammingLanguage.CPCL:
- cmdBytes = getCPCLBytes();
- break;
- }
- switch (PrinterType) {
- case DeviceType.COM:
- result = comPrint(cmdBytes);
- break;
- case DeviceType.LPT:
- result = lptPrint(cmdBytes);
- break;
- case DeviceType.DRV:
- result = drvPrint(cmdBytes);
- break;
- case DeviceType.TCP:
- result = tcpPrint(cmdBytes);
- break;
- }
- if (cmdBytes.Length > 0 && IsWriteLog) {
- WriteLog(cmdBytes, LogType.Print);
- }
- }
- catch (Exception ex) {
- //记录日志
- if (IsWriteLog) {
- WriteLog(string.Format("{0} => {1} {2}", DateTime.Now, ex.Message, ex), LogType.Error);
- }
- throw new Exception(ex.Message, ex);
- }
- finally {
- GraphBuffer = new byte[0];
- }
- return result;
- }
- }
- #endregion
- #region 打印指令
- private static bool drvPrint(byte[] cmdBytes) {
- bool result = false;
- try {
- if (!string.IsNullOrEmpty(PrinterName)) {
- result = WinDrvPort.SendBytesToPrinter(PrinterName, cmdBytes);
- }
- }
- catch (Exception ex) {
- throw new Exception(ex.Message, ex);
- }
- return result;
- }
- private static bool comPrint(byte[] cmdBytes) {
- bool result = false;
- SerialPort com = new SerialPort(string.Format("{0}{1}", PrinterType, Port), 9600, Parity.None, 8, StopBits.One);
- try {
- com.Open();
- com.Write(cmdBytes, 0, cmdBytes.Length);
- result = true;
- }
- catch (Exception ex) {
- throw new Exception(ex.Message, ex);
- }
- finally {
- if (com.IsOpen) {
- com.Close();
- }
- }
- return result;
- }
- private static bool lptPrint(byte[] cmdBytes) {
- return LptPort.Write(string.Format("{0}{1}", PrinterType, Port), cmdBytes);
- }
- private static bool tcpPrint(byte[] cmdBytes) {
- bool result = false;
- TcpClient tcp = null;
- try {
- tcp = TimeoutSocket.Connect(string.Empty, TcpIpAddress, TcpPort, 1000);
- tcp.SendTimeout = 1000;
- tcp.ReceiveTimeout = 1000;
- if (tcp.Connected) {
- tcp.Client.Send(cmdBytes);
- result = true;
- }
- }
- catch (Exception ex) {
- throw new Exception("打印失败,请检查打印机或网络设置。", ex);
- }
- finally {
- if (tcp != null) {
- if (tcp.Client != null) {
- tcp.Client.Close();
- tcp.Client = null;
- }
- tcp.Close();
- tcp = null;
- }
- }
- return result;
- }
- #endregion
- #region 生成ZPL图像打印指令
- private static byte[] getZPLBytes() {
- byte[] bmpData = getBitmapData();
- int bmpDataLength = bmpData.Length;
- for (int i = 0; i < bmpDataLength; i++) {
- bmpData[i] ^= 0xFF;
- }
- string textBitmap = string.Empty, copiesString = string.Empty;
- string textHex = BitConverter.ToString(bmpData).Replace("-", string.Empty);
- textBitmap = CompressLZ77(textHex);
- for (int i = 0; i < Copies; i++) {
- copiesString += "^XA^FO0,0^XGR:IMAGE.GRF,1,1^FS^XZ";
- }
- string text = string.Format("~DGR:IMAGE.GRF,{0},{1},{2}{3}^IDR:IMAGE.GRF",
- GraphHeight * RowRealBytesCount,
- RowRealBytesCount,
- textBitmap,
- copiesString);
- return Encoding.UTF8.GetBytes(text);
- }
- #endregion
- #region 生成EPL图像打印指令
- private static byte[] getEPLBytes() {
- byte[] buffer = getBitmapData();
- string text = string.Format("N GW{0},{1},{2},{3},{4} P{5},1 ",
- 0,
- 0,
- RowRealBytesCount,
- GraphHeight,
- Encoding.GetEncoding("iso-8859-1").GetString(buffer),
- Copies);
- return Encoding.GetEncoding("iso-8859-1").GetBytes(text);
- }
- #endregion
- #region 生成CPCL图像打印指令
- public static byte[] getCPCLBytes() {
- //GRAPHICS Commands
- //Bit-mapped graphics can be printed by using graphics commands. ASCII hex (hexadecimal) is
- //used for expanded graphics data (see example). Data size can be reduced to one-half by utilizing the
- //COMPRESSED-GRAPHICS commands with the equivalent binary character(s) of the hex data. When
- //using CG, a single 8 bit character is sent for every 8 bits of graphics data. When using EG two characters
- //(16 bits) are used to transmit 8 bits of graphics data, making EG only half as efficient. Since this data is
- //character data, however, it can be easier to handle and transmit than binary data.
- //Format:
- //{command} {width} {height} {x} {y} {data}
- //where:
- //{command}: Choose from the following:
- //EXPANDED-GRAPHICS (or EG): Prints expanded graphics horizontally.
- //VEXPANDED-GRAPHICS (or VEG): Prints expanded graphics vertically.
- //COMPRESSED-GRAPHICS (or CG): Prints compressed graphics horizontally.
- //VCOMPRESSED-GRAPHICS (or VCG): Prints compressed graphics vertically.
- //{width}: Byte-width of image.
- //{height} Dot-height of image.
- //{x}: Horizontal starting position.
- //{y}: Vertical starting position.
- //{data}: Graphics data.
- //Graphics command example
- //Input:
- //! 0 200 200 210 1
- //EG 2 16 90 45 F0F0F0F0F0F0F0F00F0F0F0F0F0F0F0F
- //F0F0F0F0F0F0F0F00F0F0F0F0F0F0F0F
- //FORM
- byte[] bmpData = getBitmapData();
- int bmpDataLength = bmpData.Length;
- for (int i = 0; i < bmpDataLength; i++) {
- bmpData[i] ^= 0xFF;
- }
- string textHex = BitConverter.ToString(bmpData).Replace("-", string.Empty);
- string text = string.Format("! {0} {1} {2} {3} {4} EG {5} {6} {7} {8} {9} FORM PRINT ",
- 0, //水平偏移量
- TcpPrinterDPI, //横向DPI
- TcpPrinterDPI, //纵向DPI
- (int)(TcpLabelMaxHeightCM / 2.54f * TcpPrinterDPI), //标签最大像素高度=DPI*标签纸高度(英寸)
- Copies, //份数
- RowRealBytesCount, //图像的字节宽度
- GraphHeight, //图像的像素高度
- 0, //横向的开始位置
- 0, //纵向的开始位置
- textHex
- );
- return Encoding.UTF8.GetBytes(text);
- }
- #endregion
- #region 获取单色位图数据
- /// <summary>
- ///
- /// </summary>
- /// <param name="pimage"></param>
- /// <returns></returns>
- public static Bitmap ConvertToGrayscale(Bitmap pimage) {
- Bitmap source = null;
- // If original bitmap is not already in 32 BPP, ARGB format, then convert
- if (pimage.PixelFormat != PixelFormat.Format32bppArgb) {
- source = new Bitmap(pimage.Width, pimage.Height, PixelFormat.Format32bppArgb);
- source.SetResolution(pimage.HorizontalResolution, pimage.VerticalResolution);
- using (Graphics g = Graphics.FromImage(source)) {
- g.DrawImageUnscaled(pimage, 0, 0);
- }
- }
- else {
- source = pimage;
- }
- // Lock source bitmap in memory
- BitmapData sourceData = source.LockBits(new Rectangle(0, 0, source.Width, source.Height), ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb);
- // Copy image data to binary array
- int imageSize = sourceData.Stride * sourceData.Height;
- byte[] sourceBuffer = new byte[imageSize];
- Marshal.Copy(sourceData.Scan0, sourceBuffer, 0, imageSize);
- // Unlock source bitmap
- source.UnlockBits(sourceData);
- // Create destination bitmap
- Bitmap destination = new Bitmap(source.Width, source.Height, PixelFormat.Format1bppIndexed);
- // Lock destination bitmap in memory
- BitmapData destinationData = destination.LockBits(new Rectangle(0, 0, destination.Width, destination.Height), ImageLockMode.WriteOnly, PixelFormat.Format1bppIndexed);
- // Create destination buffer
- imageSize = destinationData.Stride * destinationData.Height;
- byte[] destinationBuffer = new byte[imageSize];
- int sourceIndex = 0;
- int destinationIndex = 0;
- int pixelTotal = 0;
- byte destinationValue = 0;
- int pixelValue = 128;
- int height = source.Height;
- int width = source.Width;
- int threshold = 500;
- // Iterate lines
- for (int y = 0; y < height; y++) {
- sourceIndex = y * sourceData.Stride;
- destinationIndex = y * destinationData.Stride;
- destinationValue = 0;
- pixelValue = 128;
- // Iterate pixels
- for (int x = 0; x < width; x++) {
- // Compute pixel brightness (i.e. total of Red, Green, and Blue values)
- pixelTotal = sourceBuffer[sourceIndex + 1] + sourceBuffer[sourceIndex + 2] + sourceBuffer[sourceIndex + 3];
- if (pixelTotal > threshold) {
- destinationValue += (byte)pixelValue;
- }
- if (pixelValue == 1) {
- destinationBuffer[destinationIndex] = destinationValue;
- destinationIndex++;
- destinationValue = 0;
- pixelValue = 128;
- }
- else {
- pixelValue >>= 1;
- }
- sourceIndex += 4;
- }
- if (pixelValue != 128) {
- destinationBuffer[destinationIndex] = destinationValue;
- }
- }
- // Copy binary image data to destination bitmap
- Marshal.Copy(destinationBuffer, 0, destinationData.Scan0, imageSize);
- // Unlock destination bitmap
- destination.UnlockBits(destinationData);
- // Dispose of source if not originally supplied bitmap
- if (source != pimage) {
- source.Dispose();
- }
- // Return
- return destination;
- }
- /// <summary>
- /// 获取单色位图数据(1bpp),不含文件头、信息头、调色板三类数据。
- /// </summary>
- /// <returns></returns>
- private static byte[] getBitmapData() {
- MemoryStream srcStream = new MemoryStream();
- MemoryStream dstStream = new MemoryStream();
- Bitmap srcBmp = null;
- Bitmap dstBmp = null;
- byte[] srcBuffer = null;
- byte[] dstBuffer = null;
- byte[] result = null;
- try {
- srcStream = new MemoryStream(GraphBuffer);
- srcBmp = Bitmap.FromStream(srcStream) as Bitmap;
- srcBuffer = srcStream.ToArray();
- GraphWidth = srcBmp.Width;
- GraphHeight = srcBmp.Height;
- //dstBmp = srcBmp.Clone(new Rectangle(0, 0, srcBmp.Width, srcBmp.Height), PixelFormat.Format1bppIndexed);
- dstBmp = ConvertToGrayscale(srcBmp);
- dstBmp.Save(dstStream, ImageFormat.Bmp);
- dstBuffer = dstStream.ToArray();
- int bfOffBits = BitConverter.ToInt32(dstBuffer, 10);
- result = new byte[GraphHeight * RowRealBytesCount];
- //读取时需要反向读取每行字节实现上下翻转的效果,打印机打印顺序需要这样读取。
- for (int i = 0; i < GraphHeight; i++) {
- Array.Copy(dstBuffer, bfOffBits + (GraphHeight - 1 - i) * RowSize, result, i * RowRealBytesCount, RowRealBytesCount);
- }
- }
- catch (Exception ex) {
- throw new Exception(ex.Message, ex);
- }
- finally {
- if (srcStream != null) {
- srcStream.Dispose();
- srcStream = null;
- }
- if (dstStream != null) {
- dstStream.Dispose();
- dstStream = null;
- }
- if (srcBmp != null) {
- srcBmp.Dispose();
- srcBmp = null;
- }
- if (dstBmp != null) {
- dstBmp.Dispose();
- dstBmp = null;
- }
- }
- return result;
- }
- #endregion
- #region LZ77图像字节流压缩方法
- public static string CompressLZ77(string text) {
- //将转成16进制的文本进行压缩
- string result = string.Empty;
- char[] arrChar = text.ToCharArray();
- int count = 1;
- for (int i = 1; i < text.Length; i++) {
- if (arrChar[i - 1] == arrChar[i]) {
- count++;
- }
- else {
- result += convertNumber(count) + arrChar[i - 1];
- count = 1;
- }
- if (i == text.Length - 1) {
- result += convertNumber(count) + arrChar[i];
- }
- }
- return result;
- }
- public static string DecompressLZ77(string text) {
- string result = string.Empty;
- char[] arrChar = text.ToCharArray();
- int count = 0;
- for (int i = 0; i < arrChar.Length; i++) {
- if (isHexChar(arrChar[i])) {
- //十六进制值
- result += new string(arrChar[i], count == 0 ? 1 : count);
- count = 0;
- }
- else {
- //压缩码
- int value = GetCompressValue(arrChar[i]);
- count += value;
- }
- }
- return result;
- }
- private static int GetCompressValue(char c) {
- int result = 0;
- for (int i = 0; i < compressDictionary.Count; i++) {
- if (c == compressDictionary[i].Key) {
- result = compressDictionary[i].Value;
- }
- }
- return result;
- }
- private static bool isHexChar(char c) {
- return c > 47 && c < 58 || c > 64 && c < 71 || c > 96 && c < 103;
- }
- private static string convertNumber(int count) {
- //将连续的数字转换成LZ77压缩代码,如000可用I0表示。
- string result = string.Empty;
- if (count > 1) {
- while (count > 0) {
- for (int i = compressDictionary.Count - 1; i >= 0; i--) {
- if (count >= compressDictionary[i].Value) {
- result += compressDictionary[i].Key;
- count -= compressDictionary[i].Value;
- break;
- }
- }
- }
- }
- return result;
- }
- #endregion
- }
- }
调用例子代码:
- private void BackgroundWorkerPrint_DoWork(object sender, DoWorkEventArgs e) {
- BackgroundWorker worker = sender as BackgroundWorker;
- int i = 0, nextRemainder = 0, count = this._listBarcodeData.Count;
- bool flag = true;
- float pageWidth, pageHeight;
- int dpiX, dpiY, perPaperFactor;
- string reportPath = string.Format(@"{0}/Reports/{1}", Application.StartupPath, this._modelType);
- PrintLog printLog = new PrintLog() { Operater = LoginName };
- PrinterSettings printerSettings = new PrinterSettings() { PrinterName = PrintParam, Copies = 1 };
- using (StreamReader tr = new StreamReader(this.ModelFilePath)) {
- XElement xe = XDocument.Load(tr).Root.Elements()
- .Elements(XName.Get("ModelType")).First(x => x.Value == this._modelType).Parent;
- pageWidth = float.Parse(xe.Elements(XName.Get("PageWidth")).First().Value);
- pageHeight = float.Parse(xe.Elements(XName.Get("PageHeight")).First().Value);
- dpiX = int.Parse(xe.Elements(XName.Get("DotPerInchX")).First().Value);
- dpiY = int.Parse(xe.Elements(XName.Get("DotPerInchY")).First().Value);
- perPaperFactor = int.Parse(xe.Elements(XName.Get("PerPaperFactor")).First().Value);
- this._no = int.Parse(xe.Elements(XName.Get("NO")).First().Value);
- }
- using (LocalReportHelper printHelper = new LocalReportHelper(reportPath)) {
- printHelper.PrintTypeNO = this._no;
- printHelper.PrintLogInformation = printLog;
- printHelper.ExportImageDeviceInfo.DpiX = dpiX;
- printHelper.ExportImageDeviceInfo.DpiY = dpiY;
- printHelper.ExportImageDeviceInfo.PageWidth = pageWidth;
- printHelper.ExportImageDeviceInfo.PageHeight = pageHeight;
- foreach (BarcodeData bdCurrent in this._listBarcodeData) {
- if (worker.CancellationPending == true) {
- e.Cancel = true;
- break;
- }
- else {
- try {
- DataSet dsCurrent = this.GetDataForPrinterByBarcode(bdCurrent.Barcode, bdCurrent.IncreaseType);
- DataSet dsNext = null, dsPrevious = dsCurrent.Copy();
- int amount = this._printType == 0 ? 1 : bdCurrent.Amount - nextRemainder;
- int copies = amount / perPaperFactor;
- int remainder = nextRemainder = amount % perPaperFactor;
- Action<DataSet, int, string, int> actPrint = (ds, duplicates, barcodes, amountForLog) => {
- printHelper.PrintLogInformation.Barcode = barcodes;
- printHelper.PrintLogInformation.Amount = amountForLog;
- if (this.PrintType == 0 && DeviceType == DeviceType.DRV) {
- printerSettings.Copies = (short)duplicates;
- printHelper.WindowsDriverPrint(printerSettings, dpiX, ds);
- }
- else {
- printHelper.OriginalPrint(DeviceType, ds, duplicates, PrintParam);
- }
- };
- if (copies > 0) {
- int amountForCopy = copies;
- if (perPaperFactor > 1) {
- DataSet dsCurrentCopy = dsCurrent.CopyForBarcode();
- dsCurrent.Merge(dsCurrentCopy);
- amountForCopy = copies * perPaperFactor;
- }
- actPrint.Invoke(dsCurrent, copies, bdCurrent.Barcode, amountForCopy);
- }
- if (remainder > 0) {
- int nextIndex = i + 1;
- string barcodes = bdCurrent.Barcode;
- if (nextIndex < count) {
- BarcodeData bdNext = this._listBarcodeData[nextIndex];
- dsNext = this.GetDataForPrinterByBarcode(bdNext.Barcode, bdNext.IncreaseType);
- dsPrevious.Merge(dsNext);
- barcodes += "," + bdNext.Barcode;
- }
- actPrint.Invoke(dsPrevious, 1, barcodes, 1);
- }
- worker.ReportProgress(i++, string.Format("正在生成 {0} 并输送往打印机...", bdCurrent.Barcode));
- if (this._printType == 0) {
- count = 1;
- flag = true;
- break;
- }
- }
- catch (Exception ex) {
- flag = false;
- e.Result = ex.Message;
- break;
- }
- }
- }
- if (!e.Cancel && flag) {
- e.Result = string.Format("打印操作成功完成,共处理条码 {0} 条", count);
- }
- }
- }
LocalReportHelper类代码:
- using System;
- using System.Configuration;
- using System.Data;
- using System.Drawing;
- using System.Drawing.Imaging;
- using System.Drawing.Printing;
- using System.IO;
- using System.Text;
- using System.Windows.Forms;
- using Microsoft.Reporting.WinForms;
- using Umisky.BarcodePrint.Core;
- namespace Umisky.BarcodePrint.Codes {
- public class LocalReportHelper : IDisposable {
- #region Properties
- public String LocalReportPath { get; set; }
- public LocalReport LocalReportInstance { get; private set; }
- public GraphDeviceInfo ExportImageDeviceInfo { get; set; }
- public PrintLog PrintLogInformation { get; set; }
- public int PrintTypeNO { get; set; }
- #endregion
- private Stream _stream;
- private int _bmpDPI;
- private DataSet _ds;
- public LocalReportHelper(String reportPath)
- : this(reportPath, new GraphDeviceInfo() {
- ColorDepth = 1,
- DpiX = 203,
- DpiY = 203,
- PageWidth = 8f,
- PageHeight = 12.2f,
- MarginTop = 0.2f
- }) { }
- public LocalReportHelper(String reportPath, GraphDeviceInfo deviceInfo) {
- this._bmpDPI = 96;
- this.LocalReportPath = reportPath;
- this.ExportImageDeviceInfo = deviceInfo;
- this.LocalReportInstance = new LocalReport() { ReportPath = reportPath };
- this.LocalReportInstance.SubreportProcessing += new SubreportProcessingEventHandler(LocalReportInstance_SubreportProcessing);
- }
- private void LocalReportInstance_SubreportProcessing(object sender, SubreportProcessingEventArgs e) {
- foreach (DataTable dt in this._ds.Tables) {
- e.DataSources.Add(new ReportDataSource(dt.TableName, dt));
- }
- }
- public void Dispose() {
- this.ExportImageDeviceInfo = null;
- this.LocalReportInstance = null;
- this.LocalReportPath = null;
- this._ds = null;
- }
- public void AddReportParameter(string paramName, string value) {
- this.LocalReportInstance.SetParameters(new ReportParameter(paramName, value));
- }
- #region Export hang title image by reporting services
- private void AddWashIcones() {
- this.LocalReportInstance.EnableExternalImages = true;
- this.LocalReportInstance.SetParameters(new ReportParameter("AppPath", Application.StartupPath));
- }
- private void AddBarcodesAssembly() {
- this.LocalReportInstance.AddTrustedCodeModuleInCurrentAppDomain(ConfigurationManager.AppSettings["BarcodesAssembly"]);
- }
- private Stream CreateStreamCallBack(string name, string fileNameExtension, Encoding encoding, string mimeType, bool willSeek) {
- string tempFolderPath = string.Concat(Environment.GetEnvironmentVariable("TEMP"), "/");
- this._stream = new FileStream(string.Concat(tempFolderPath, name, ".", fileNameExtension), FileMode.Create);
- return this._stream;
- }
- private void Export() {
- if (string.IsNullOrEmpty(this.LocalReportPath) ||
- this.LocalReportInstance == null ||
- this.ExportImageDeviceInfo == null) {
- throw new InvalidExpressionException("Invalid parameters");
- }
- if (this.PrintTypeNO >= -1 || this.PrintTypeNO == -3) {
- this.AddBarcodesAssembly();
- if (this.PrintTypeNO >= 0) {
- this.AddWashIcones();
- }
- }
- if (this.PrintTypeNO >= 0) {
- this.LocalReportInstance.DataSources.Clear();
- foreach (DataTable dt in this._ds.Tables) {
- this.LocalReportInstance.DataSources.Add(new ReportDataSource(dt.TableName, dt));
- }
- }
- this.LocalReportInstance.Refresh();
- if (this._stream != null) {
- this._stream.Close();
- this._stream = null;
- }
- Warning[] warnings;
- this.LocalReportInstance.Render(
- "Image",
- this.ExportImageDeviceInfo.ToString(),
- PageCountMode.Actual,
- CreateStreamCallBack,
- out warnings);
- this._stream.Position = 0;
- }
- private void SaveLog() {
- using (Bitmap image = (Bitmap)Image.FromStream(this._stream)) {
- image.SetResolution(96, 96);
- using (MemoryStream ms = new MemoryStream()) {
- image.Save(ms, ImageFormat.Jpeg);
- this.PrintLogInformation.BarcodeImage = ms.ToArray();
- }
- }
- LogHelper.AddLog(this.PrintLogInformation);
- if (this._stream != null) {
- this._stream.Close();
- this._stream = null;
- }
- }
- #endregion
- #region Windows driver print
- private void PrintPage(object sender, PrintPageEventArgs ev) {
- Bitmap bmp = (Bitmap)Image.FromStream(this._stream);
- bmp.SetResolution(this._bmpDPI, this._bmpDPI);
- ev.Graphics.DrawImage(bmp, 0, 0);
- ev.HasMorePages = false;
- }
- /// <summary>
- /// Print by windows driver
- /// </summary>
- /// <param name="printerSettings">.net framework PrinterSettings class, including some printer information</param>
- /// <param name="bmpDPI">the bitmap image resoluation, dots per inch</param>
- public void WindowsDriverPrint(PrinterSettings printerSettings, int bmpDPI, DataSet ds) {
- this._ds = ds;
- this.Export();
- if (this._stream == null) {
- return;
- }
- this._bmpDPI = bmpDPI;
- PrintDocument printDoc = new PrintDocument();
- printDoc.DocumentName = "条码打印";
- printDoc.PrinterSettings = printerSettings;
- printDoc.PrintController = new StandardPrintController();
- if (!printDoc.PrinterSettings.IsValid) {
- if (this._stream != null) {
- this._stream.Close();
- this._stream = null;
- }
- MessageBox.Show("Printer found errors, Please contact your administrators!", "Print Error");
- return;
- }
- printDoc.PrintPage += new PrintPageEventHandler(PrintPage);
- printDoc.Print();
- this.SaveLog();
- }
- #endregion
- #region Original print
- /// <summary>
- /// Send the file to the printer or use the printer command
- /// </summary>
- /// <param name="deviceType">The port(LPT,COM,DRV) which the device connecting</param>
- /// <param name="copies">Total number for print</param>
- /// <param name="ds">The report datasource</param>
- /// <param name="printParam">Print parameters</param>
- /// <param name="printLanguage">The built-in printer programming language, you can choose EPL or ZPL</param>
- public void OriginalPrint(DeviceType deviceType,
- DataSet ds,
- int copies = 1,
- string printParam = null,
- ProgrammingLanguage printLanguage = ProgrammingLanguage.ZPL) {
- this._ds = ds;
- this.Export();
- if (this._stream == null) {
- return;
- }
- int port = 1;
- int.TryParse(printParam, out port);
- int length = (int)this._stream.Length;
- byte[] bytes = new byte[length];
- this._stream.Read(bytes, 0, length);
- ZebraPrintHelper.Copies = copies;
- ZebraPrintHelper.PrinterType = deviceType;
- ZebraPrintHelper.PrinterName = printParam;
- ZebraPrintHelper.Port = port;
- ZebraPrintHelper.PrinterProgrammingLanguage = printLanguage;
- ZebraPrintHelper.PrintGraphics(bytes);
- this.SaveLog();
- }
- #endregion
- }
- }