public static void PrintImagePage(PrinterData printerData)
{
var eventType = (printerData.eventType).ToUpper();
PrintDocument pd = new PrintDocument();
pd.PrinterSettings.PrinterName = printerData.printerName;
pd.DefaultPageSettings.PrinterSettings.PrinterName = printerData.printerName;
PrinterSettings.PaperSizeCollection paperSizes = pd.PrinterSettings.PaperSizes; //获取打印纸张
if (printerData.customSizeFlag)
{
PaperSize ps = new PaperSize("用户选择模版(" + printerData.width + "*" + printerData.height + ")", (int)Millimeters2PixelsUtils.Millimeters2Pixels(printerData.width), (int)Millimeters2PixelsUtils.Millimeters2Pixels(printerData.height));
pd.DefaultPageSettings.PaperSize = ps;
}
else
{
pd.DefaultPageSettings.PaperSize = getPaperSize(paperSizes, printerData.paperName) ?? pd.DefaultPageSettings.PaperSize;
}
pd.PrintPage += (o, e) =>
{
PageSettings settings = e.PageSettings;
var paperHeight = settings.PaperSize.Height;
var paperWidth = settings.PaperSize.Width;
//Rectangle m = e.MarginBounds;
int margin = 10, imgHeight = 0, imgWidth = 0;
ImageScaling(printerData.image, paperHeight, paperWidth, margin, printerData.direction, ref imgHeight, ref imgWidth);
if (printerData.direction == "2") //2:横向打印（html转pdf的有问题，html转pdf不考虑宽度，转出来标准的pdf页，分页也已经完成，在这部分就处理不了）
{
e.Graphics.TranslateTransform(0, paperHeight); //旋转原点
e.Graphics.RotateTransform(-90.0F); //旋转角度
}
e.Graphics.DrawImage(printerData.image, margin, margin, imgWidth, imgHeight);
};
if (eventType == "PRINT")
{
pd.Print();
}
else if (eventType == "PREVIEW")
{
PrintPreviewDialog printPreviewDialog = new PrintPreviewDialog();
printPreviewDialog.WindowState = FormWindowState.Maximized;
printPreviewDialog.Document = pd;
printPreviewDialog.TopMost = true;
printPreviewDialog.ShowDialog();
}
(printerData.image).Dispose();
}
public static Stream Html2Pdf(PrinterData printerData)
{
string htmlText = printerData.data.Trim();
if (string.IsNullOrEmpty(htmlText))
{
throw new Exception("传入的html无内容：" + htmlText);
}
MemoryStream outputStream = new MemoryStream(); //实例化MemoryStream，用于存PDF
byte[] data = Encoding.UTF8.GetBytes(htmlText); //字串转成byte[]
MemoryStream msInput = new MemoryStream(data);
int width = 0, height = 0;
width = (int)Millimeters2PixelsUtils.Millimeters2Pixels(printerData.width);
height = (int)Millimeters2PixelsUtils.Millimeters2Pixels(printerData.height);
if (!printerData.customSizeFlag)
{
PrintUtils.getPaperSize(printerData.paperName ?? "A4", ref width, ref height);
}
Rectangle pageSize = new Rectangle(width, height); //设置pdf模板大小
if (printerData.direction == "2") //2：横向打印
{
pageSize = new Rectangle(height, width);
}
Document doc = new Document(pageSize); //要写PDF的文件 document = new Document(PageSize.A4, 25, 25, 30, 30);
PdfWriter writer = PdfWriter.GetInstance(doc, outputStream);
//指定文件预设开档时的缩放为100%
PdfDestination pdfDest = new PdfDestination(PdfDestination.XYZ, 0, doc.PageSize.Height, 1f);
//开启Document文件
doc.Open();
//使用XMLWorkerHelper把Html parse到PDF档里
XMLWorkerHelper.GetInstance().ParseXHtml(writer, doc, msInput, null, Encoding.UTF8, new UnicodeFontFactory());
//XMLWorkerHelper.GetInstance().ParseXHtml(writer, doc, msInput, null, Encoding.UTF8);
//将pdfDest设定的资料写到PDF档
PdfAction action = PdfAction.GotoLocalPage(1, pdfDest, writer);
writer.SetOpenAction(action);
doc.Close();
msInput.Close();
outputStream.Close();
//回传PDF档案
var bytes = outputStream.ToArray();
var ret = Convert.ToBase64String(bytes);
try
{
string strbase64 = ret;
strbase64 = strbase64.Replace(' ', '+');
return(new MemoryStream(Convert.FromBase64String(strbase64)));
}
catch (Exception ex)
{
throw new Exception("html转pdf文件失败：" + ex.Message);
}
}
public static string PreView(PrinterData printerData)
{
try
{
if (string.IsNullOrEmpty(printerData.printerName))
{
return("请先设置默认打印机");
}
var eventType = (printerData.eventType).ToUpper();
var filePath = printerData.filePath;
if (!Directory.Exists(filePath) && !File.Exists(filePath))
{
return("要打印的数据不存在");
}
PrintDocument pd = new PrintDocument();
pd.PrinterSettings.PrinterName = printerData.printerName;
pd.DefaultPageSettings.PrinterSettings.PrinterName = printerData.printerName;
if (printerData.customSizeFlag)
{
PaperSize ps = new PaperSize("用户选择模版(" + printerData.width + "*" + printerData.height + ")", (int)Millimeters2PixelsUtils.Millimeters2Pixels(printerData.width), (int)Millimeters2PixelsUtils.Millimeters2Pixels(printerData.height));
pd.DefaultPageSettings.PaperSize = ps;
}
else
{
pd.DefaultPageSettings.PaperSize = getPaperSize(pd.PrinterSettings.PaperSizes, printerData.paperName) ?? pd.DefaultPageSettings.PaperSize;
}
var fileListIndex = 0;
List <string> fileList = new List <string>();
if (File.Exists(filePath)) //路径是jpg图片
{
fileList.Add(filePath);
}
else
{
fileList = new List <string>(Directory.GetFiles(filePath).OrderBy(f => Convert.ToInt32(Path.GetFileNameWithoutExtension(f))));
}
if (fileList.Count == 0)
{
return("要打印的数据不存在");
}
pd.PrintPage += (o, e) =>
{
PageSettings settings = e.PageSettings;
var paperHeight = settings.PaperSize.Height;
var paperWidth = settings.PaperSize.Width;
int margin = 10, imgHeight = 0, imgWidth = 0;
using (Image image = new Bitmap(fileList[fileListIndex]))
{
ImageScaling(image, paperHeight, paperWidth, margin, printerData.direction, ref imgHeight, ref imgWidth);
if (printerData.direction == "2") //2:横向打印（html转pdf的有问题，html转pdf不考虑宽度，转出来标准的pdf页，分页也已经完成，在这部分就处理不了）
{
e.Graphics.TranslateTransform(0, paperHeight); //旋转原点
e.Graphics.RotateTransform(-90.0F); //旋转角度
}
e.Graphics.DrawImage(image, margin, margin, imgWidth, imgHeight);
}
if (fileListIndex < fileList.Count - 1)
{
e.HasMorePages = true; //HaeMorePages属性为True时，PrintPage的回调函数就会被再次调用，打印一个页面。
fileListIndex++;
}
else
{
//预览界面点击打印需要把索引重新初始化
fileListIndex = 0;
}
};
//打印结束-删除一些创建的文件
//pd.EndPrint += new PrintEventHandler();
if (eventType == "PRINT")
{
pd.Print();
}
else if (eventType == "PREVIEW")
{
PrintPreviewDialog printPreviewDialog = new PrintPreviewDialog();
printPreviewDialog.WindowState = FormWindowState.Maximized;
printPreviewDialog.Document = pd;
printPreviewDialog.TopMost = true;
printPreviewDialog.ShowDialog();
}
deleteTemFile();
return("打印成功！");
}
catch (Exception e)
{
return(e.Message);
}
}
public static void Html2Pdf(string htmlText, string tempPdfPath, string paperName, string direction, Boolean customSizeFlag, int customWidth, int customHeight)
{
if (string.IsNullOrEmpty(htmlText))
{
throw new Exception("传入的html无内容：" + htmlText);
}
MemoryStream outputStream = new MemoryStream(); //实例化MemoryStream，用于存PDF
byte[] data = Encoding.UTF8.GetBytes(htmlText); //字串转成byte[]
MemoryStream msInput = new MemoryStream(data);
int width = 0, height = 0;
width = (int)Millimeters2PixelsUtils.Millimeters2Pixels(customWidth);
height = (int)Millimeters2PixelsUtils.Millimeters2Pixels(customHeight);
if (!customSizeFlag)
{
paperName = paperName ?? "A4";
PrintUtils.getPaperSize(paperName, ref width, ref height);
}
Rectangle pageSize = new Rectangle(width, height); //设置pdf模板大小
if (direction == "2") //2：横向打印
{
pageSize = new Rectangle(height, width);
}
Document doc = new Document(pageSize); //要写PDF的文件 document = new Document(PageSize.A4, 25, 25, 30, 30);
PdfWriter writer = PdfWriter.GetInstance(doc, outputStream);
//指定文件预设开档时的缩放为100%
PdfDestination pdfDest = new PdfDestination(PdfDestination.XYZ, 0, doc.PageSize.Height, 1f);
//开启Document文件
doc.Open();
//使用XMLWorkerHelper把Html parse到PDF档里
XMLWorkerHelper.GetInstance().ParseXHtml(writer, doc, msInput, null, Encoding.UTF8, new UnicodeFontFactory());
//XMLWorkerHelper.GetInstance().ParseXHtml(writer, doc, msInput, null, Encoding.UTF8);
//将pdfDest设定的资料写到PDF档
PdfAction action = PdfAction.GotoLocalPage(1, pdfDest, writer);
writer.SetOpenAction(action);
doc.Close();
msInput.Close();
outputStream.Close();
//回传PDF档案
var bytes = outputStream.ToArray();
var ret = Convert.ToBase64String(bytes);
try
{
string strbase64 = ret;
strbase64 = strbase64.Replace(' ', '+');
System.IO.MemoryStream stream = new System.IO.MemoryStream(Convert.FromBase64String(strbase64));
System.IO.FileStream fs = new System.IO.FileStream(tempPdfPath, System.IO.FileMode.OpenOrCreate, System.IO.FileAccess.Write);
byte[] b = stream.ToArray();
//byte[] b = stream.GetBuffer();
fs.Write(b, 0, b.Length);
fs.Close();
}
catch (Exception ex)
{
throw new Exception("html转pdf文件失败：" + ex.Message);
}
}
