private static void ApplySize(PrintElementImage image, dynamic size)
{
if (size != null)
{
PrintElementSize imageSize = null;
double width;
if (BuildHelper.TryToSizeInPixels(size.Width, size.SizeUnit, out width))
{
imageSize = imageSize ?? new PrintElementSize();
imageSize.Width = width;
}
double height;
if (BuildHelper.TryToSizeInPixels(size.Height, size.SizeUnit, out height))
{
imageSize = imageSize ?? new PrintElementSize();
imageSize.Height = height;
}
image.Size = imageSize;
}
}
private PrintElementImage CreateBarcodeImage(PrintElementBuildContext buildContext, dynamic elementMetadata)
{
var imageSize = new PrintElementSize();
var imageStream = CreateBarcodeImageStream(buildContext, elementMetadata, imageSize);
try
{
imageStream = ApplyRotation(imageStream, elementMetadata.Rotation, imageSize);
return(new PrintElementImage(imageStream)
{
Size = imageSize
});
}
catch
{
}
return(null);
}
private string BuildHtmlToPdfUtilArguments(PrintElementSize size, PrintElementThickness padding, string fileHtmlPath, string filePdfPath)
{
var mmPaddingBottom = (int)(padding.Bottom / SizeUnits.Mm);
var mmPaddingLeft = (int)(padding.Left / SizeUnits.Mm);
var mmPaddingRight = (int)(padding.Right / SizeUnits.Mm);
var mmPaddingTop = (int)(padding.Right / SizeUnits.Mm);
var htmlToPdfUtil = _htmlToPdfUtilArguments
.Replace(HtmlInput, fileHtmlPath)
.Replace(PdfOutput, filePdfPath)
.Replace(PaddingBottom, mmPaddingBottom.ToString())
.Replace(PaddingLeft, mmPaddingLeft.ToString())
.Replace(PaddingRight, mmPaddingRight.ToString())
.Replace(PaddingTop, mmPaddingTop.ToString())
;
if (size != null)
{
if (size.Height != null)
{
var mmPageHeight = (int)(size.Height / SizeUnits.Mm);
htmlToPdfUtil = htmlToPdfUtil.Replace(PageHeight, mmPageHeight.ToString());
}
if (size.Width != null)
{
var mmPageWidth = (int)(size.Width / SizeUnits.Mm);
htmlToPdfUtil = htmlToPdfUtil.Replace(PageWidth, mmPageWidth.ToString());
}
}
else
{
const int defaultPageHeight = 297;
const int defaultPageWidth = 210;
htmlToPdfUtil = htmlToPdfUtil.Replace(PageHeight, defaultPageHeight.ToString());
htmlToPdfUtil = htmlToPdfUtil.Replace(PageWidth, defaultPageWidth.ToString());
}
return(htmlToPdfUtil);
}
public void Convert(PrintElementSize size, PrintElementThickness padding, Stream inHtmlStream, Stream outPdfStream)
{
var fileName = Guid.NewGuid().ToString("N");
var fileHtmlPath = Path.Combine(_htmlToPdfTemp, fileName + ".html");
var filePdfPath = Path.Combine(_htmlToPdfTemp, fileName + ".pdf");
try
{
using (var htmlFileStream = File.Create(fileHtmlPath))
{
inHtmlStream.CopyTo(htmlFileStream);
htmlFileStream.Flush();
}
var htmlToPdfUtilArguments = BuildHtmlToPdfUtilArguments(size, padding, fileHtmlPath, filePdfPath);
var htmlToPdfConvertResult = ExecuteShellCommand(_htmlToPdfUtilCommand, htmlToPdfUtilArguments, UtilTimeout);
if (htmlToPdfConvertResult.Completed && htmlToPdfConvertResult.ExitCode == 0)
{
using (var fileStream = File.OpenRead(filePdfPath))
{
fileStream.CopyTo(outPdfStream);
outPdfStream.Flush();
}
}
else
{
if (htmlToPdfConvertResult.Completed)
{
throw new InvalidOperationException(string.Format(Resources.CannotConvertHtmlToPdf, htmlToPdfConvertResult.Output, htmlToPdfConvertResult.ExitCode));
}
throw new InvalidOperationException(Resources.CannotConvertHtmlToPdfByTimeout);
}
}
finally
{
DeleteFile(fileHtmlPath);
DeleteFile(filePdfPath);
}
}
private static Stream ApplyRotation(Stream bitmap, dynamic rotation, PrintElementSize imageSize)
{
string rotationString;
if (ConvertHelper.TryToNormString(rotation, out rotationString))
{
switch (rotationString)
{
case "rotate90":
return(RotateImage(bitmap, RotateFlipType.Rotate90FlipNone, imageSize));
case "rotate180":
return(RotateImage(bitmap, RotateFlipType.Rotate180FlipNone, imageSize));
case "rotate270":
return(RotateImage(bitmap, RotateFlipType.Rotate270FlipNone, imageSize));
}
}
return(bitmap);
}
private static Stream RotateImage(Stream image, RotateFlipType rotation, PrintElementSize imageSize)
{
try
{
using (var bitmap = new Bitmap(image))
{
bitmap.RotateFlip(rotation);
imageSize.Width = bitmap.Width;
imageSize.Height = bitmap.Height;
var result = new MemoryStream();
bitmap.Save(result, ImageFormat.Png);
result.Seek(0, SeekOrigin.Begin);
return(result);
}
}
catch
{
return(image);
}
}
private Stream CreateBarcodeImageStream(PrintElementBuildContext buildContext, dynamic elementMetadata, PrintElementSize imageSize)
{
string textSting = BuildHelper.FormatValue(buildContext, elementMetadata.Text, elementMetadata.SourceFormat);
textSting = PrepareText(textSting);
if (textSting != null)
{
bool showText;
showText = !ConvertHelper.TryToBool(elementMetadata.ShowText, out showText) || showText;
// Для генерации штрих-кода используется функциональность FastReport
try
{
var barcode = new BarcodeObject
{
Barcode = CreateBarcode(elementMetadata),
ShowText = showText,
Text = textSting,
Height = 64
};
// Для получения размеров штрих-кода рисуем его первый раз
using (var codeBmp = new Bitmap(1, 1))
using (var graphics = Graphics.FromImage(codeBmp))
using (var graphicCache = new GraphicCache())
{
barcode.Draw(new FRPaintEventArgs(graphics, 1, 1, graphicCache));
}
// Теперь, зная размеры штрих-кода, рисуем его второй раз
if (barcode.Width > 0 && barcode.Height > 0)
{
using (var codeBmp = new Bitmap((int)barcode.Width, (int)barcode.Height))
using (var graphics = Graphics.FromImage(codeBmp))
using (var graphicCache = new GraphicCache())
{
graphics.Clear(Color.White);
barcode.Draw(new FRPaintEventArgs(graphics, 1, 1, graphicCache));
imageSize.Width = codeBmp.Width;
imageSize.Height = codeBmp.Height;
var codeStream = new MemoryStream();
codeBmp.Save(codeStream, ImageFormat.Png);
codeStream.Seek(0, SeekOrigin.Begin);
return(codeStream);
}
}
}
catch
{
}
}
return(null);
}
