public PdfResult(IHtmlToPdfConverter converter, Stream htmlFile, HtmlToPdfSettings settings, string viewName) : base()
{
ViewName = viewName;
_converter = converter;
_settings = settings;
_htmlFileSource = htmlFile;
}
/// <summary>
/// Generate pdf from html string with custom settings.
/// </summary>
/// <param name="settings">Pdf convertation settings</param>
/// <param name="htmlString"></param>
/// <returns>Pdf data is an byte array.</returns>
public byte[] ConvertToPdfAsArray(HtmlToPdfSettings settings, string htmlString)
{
using (var pdfStream = (MemoryStream)ConvertToPdfAsStream(settings, htmlString))
{
return(pdfStream.ToArray());
}
}
public void ShouldConvertToLandscapePdf()
{
var converter = new HtmlToPdfConverter();
var settings = new HtmlToPdfSettings()
{
CompressionLevel = PdfCompressionLevel.NoCompression,
Margin = "25 25 25 25",
PageOrientation = PdfPageOrientation.Landscape,
PageSize = PdfPageSize.A3,
Standart = PdfStandart.PdfA
};
var pdfFile = converter.ConvertToPdfAsArray(settings, SpecifiedHtmlString);
var pdfReader = new PdfReader(pdfFile);
var firstPdfPage = pdfReader.GetPageSize(1);
firstPdfPage.Width.ShouldBeGreaterThanOrEqualTo(firstPdfPage.Height);
}
public void ShouldConvertToB4Pdf()
{
var converter = new HtmlToPdfConverter();
var settings = new HtmlToPdfSettings()
{
CompressionLevel = PdfCompressionLevel.NoCompression,
Margin = "25 25 25 25",
PageOrientation = PdfPageOrientation.Portrait,
PageSize = PdfPageSize.B4,
Standart = PdfStandart.PdfA
};
var pdfFile = converter.ConvertToPdfAsArray(settings, SpecifiedHtmlString);
var pdfReader = new PdfReader(pdfFile);
var firstPdfPage = pdfReader.GetPageSize(1);
firstPdfPage.Width.ShouldBe(709);
firstPdfPage.Height.ShouldBe(1002);
}
/// <summary>
/// Generate pdf from html string with custom settings.
/// </summary>
/// <param name="settings">Pdf convertation settings</param>
/// <param name="htmlString"></param>
/// <returns>Pdf data is an memory stream.</returns>
public Stream ConvertToPdfAsStream(HtmlToPdfSettings settings, string htmlString)
{
if (settings == null)
{
throw new ArgumentNullException("settings", "Pdf settings is null");
}
if (string.IsNullOrEmpty(htmlString))
{
throw new ArgumentNullException("htmlString", "Source html is empty");
}
ApplyUserSettings(settings);
var pdfContainer = _internalConverter.ConvertHtmlString(htmlString);
var pdfStream = new MemoryStream();
pdfContainer.Save(pdfStream);
return(pdfStream);
}
/// <summary>
/// Apply user settings to internal converter settings
/// </summary>
/// <param name="settings">Pdf convertation settings</param>
private void ApplyUserSettings(HtmlToPdfSettings settings)
{
if (settings.Margin != null)
{
var pdfMargin = settings.Margin.Split(MarginValuesSeparator);
if (pdfMargin.Length != MarginValuesAmount)
{
throw new FormatException("Margin field should contains 4 values");
}
_internalConverter.Options.MarginTop = Convert.ToInt32(pdfMargin[0]);
_internalConverter.Options.MarginRight = Convert.ToInt32(pdfMargin[1]);
_internalConverter.Options.MarginBottom = Convert.ToInt32(pdfMargin[2]);
_internalConverter.Options.MarginLeft = Convert.ToInt32(pdfMargin[3]);
}
_internalConverter.Options.PdfStandard = (PdfStandard)Enum.Parse(typeof(PdfStandard), settings.Standart.ToString());
_internalConverter.Options.PdfPageSize = (SelectPdf.PdfPageSize)Enum.Parse(typeof(SelectPdf.PdfPageSize),
settings.PageSize.ToString());
_internalConverter.Options.PdfPageOrientation = (SelectPdf.PdfPageOrientation)Enum.Parse(typeof(SelectPdf.PdfPageOrientation),
settings.PageOrientation.ToString());
_internalConverter.Options.PdfCompressionLevel = (SelectPdf.PdfCompressionLevel)Enum.Parse(typeof(SelectPdf.PdfCompressionLevel),
settings.CompressionLevel.ToString());
}
