/// <summary>
/// Builds an HTML footer for the PDF publication
/// from informations contained in the conversion parameters.
/// </summary>
/// <param name="parameters">The parameters of the conversion.</param>
/// <returns>A string containing the HTML footer for the PDF publication.</returns>
private static string BuildFooter(HtmlToPdfConverterOptions parameters)
{
var date = DateTime.Now.ToString(Resources.DATE_FORMAT, new CultureInfo(Resources.CULTURE_EN_US)).ToUpper();
var footer = string.Format(Resources.FOOTER, parameters.ExportClassification, parameters.ExportControl, date, Resources.PAGE_NUMBER);
return(footer);
}
/// <summary>
/// Converts an HTML stream to PDF using the given options
/// </summary>
/// <param name="input">The input stream.</param>
/// <param name="output">The output stream.</param>
/// <param name="options">The options to use for the conversion.</param>
public static void Convert(Stream input, Stream output, HtmlToPdfConverterOptions options)
{
using (var sr = new StreamReader(input))
{
var html = sr.ReadToEnd();
Convert(html, output, options);
}
}
/// <summary>
/// Converts an HTML page to PDF using the given options
/// </summary>
/// <param name="html">The HTML content to convert.</param>
/// <param name="output">The output stream.</param>
/// <param name="options">The options to use for the conversion.</param>
public static void Convert(string html, Stream output, HtmlToPdfConverterOptions options)
{
// Sets the license
SetLicense();
// Initialize parameters
var opts = InitParameters(html, options);
#if DEBUG
using (var fw = File.CreateText(@"C:\temp\js_out.txt"))
{
HtmlToPdf.DebugConsole = fw;
HtmlToPdf.ConvertHtml(html, output, opts);
}
#else
// Convert HTMl to PDF
HtmlToPdf.ConvertHtml(html, output, opts);
#endif
}
/// <summary>
/// Initialise the parameters of the conversion,
/// using the class parameters and the given parameters
/// </summary>
/// <param name="options">custom user parameter values</param>
/// <returns>An HtmlToPdfOptions object</returns>
private static HtmlToPdfOptions InitParameters(string html, HtmlToPdfConverterOptions options)
{
var parameters = (HtmlToPdfConverterOptions)Options.Clone();
if (options != null)
{
parameters.BaseUrl = options.BaseUrl ?? parameters.BaseUrl;
parameters.ExportControl = string.IsNullOrEmpty(options.ExportControl) ? parameters.ExportControl : options.ExportControl;
parameters.ExportClassification = string.IsNullOrEmpty(options.ExportClassification) ? parameters.ExportClassification : options.ExportClassification;
parameters.OutputArea = options.OutputArea.IsEmpty ? parameters.OutputArea : options.OutputArea;
parameters.PageSize = options.PageSize.IsEmpty ? parameters.PageSize : options.PageSize;
parameters.RepeatTableHeaderFooter = options.RepeatTableHeaderFooter ?? parameters.RepeatTableHeaderFooter;
parameters.Timeout = options.Timeout ?? parameters.Timeout;
parameters.VisibleElementIds = options.VisibleElementIds.Length == 0 ? parameters.VisibleElementIds : options.VisibleElementIds;
parameters.InvisibleElementIds = options.InvisibleElementIds.Length == 0 ? parameters.InvisibleElementIds : options.InvisibleElementIds;
}
// Try to parse the HTML source as XML.
XDocument doc = null;
try
{
doc = XDocument.Parse(html);
} catch (Exception) { }
// Build the HTML header if the source HTML could be parsed as XML.
var header = (doc != null) ? BuildHeader(doc) : string.Empty;
// Build the HTML footer.
var footer = BuildFooter(parameters);
// Options that are always set
var opts = new HtmlToPdfOptions
{
PageSize = parameters.PageSize,
OutputArea = parameters.OutputArea,
NoLink = true,
RepeatTableHeaderAndFooter = parameters.RepeatTableHeaderFooter ?? true,
FooterHtmlPosition = parameters.PageSize.Height - _regionAfter,
FooterHtmlFormat = footer,
HeaderHtmlPosition = 0F,
HeaderHtmlFormat = header,
};
// BaseUrl
if (parameters.BaseUrl != null)
{
opts.BaseUrl = parameters.BaseUrl.AbsoluteUri;
}
// Handling of the visible ids list
if (parameters.VisibleElementIds != null && parameters.VisibleElementIds.Length > 0)
{
opts.VisibleElementIds = string.Join(";", parameters.VisibleElementIds);
}
// Handling of the invisible ids list
if (parameters.InvisibleElementIds != null && parameters.InvisibleElementIds.Length > 0)
{
opts.InvisibleElementIds = string.Join(";", parameters.InvisibleElementIds);
}
return(opts);
}
