/// <summary>
/// This handler is called after the navigation to header HTML completed. The document header is resized in this event handler
/// </summary>
/// <param name="eventParams">The event parameter containing the HTML content size in pixels and points</param>
void headerHtml_NavigationCompletedEvent(NavigationCompletedParams eventParams)
{
// Get the header HTML width and height from event parameters
float headerHtmlWidth = eventParams.HtmlContentWidthPt;
float headerHtmlHeight = eventParams.HtmlContentHeightPt;
// Get the header width
float headerWidth = pdfDocument.Header.Width;
// Calculate a resize factor to fit the header width
float resizeFactor = 1;
if (headerHtmlWidth > headerWidth)
{
resizeFactor = headerWidth / headerHtmlWidth;
}
// Calculate the header height to preserve the HTML aspect ratio
float headerHeight = headerHtmlHeight * resizeFactor;
if (!(headerHeight < pdfDocument.Pages[0].PageSize.Height - pdfDocument.Pages[0].Margins.Top -
pdfDocument.Pages[0].Margins.Bottom))
{
throw new Exception("The header height cannot be bigger than PDF page height");
}
// Set the calculated header height
pdfDocument.Header.Height = headerHeight;
}
/// <summary>
/// This handler is called after the navigation to header HTML completed. The document header is resized in this event handler
/// </summary>
/// <param name="eventParams">The event parameter containing the HTML content size in pixels and points</param>
void headerHtml_NavigationCompletedEvent(NavigationCompletedParams eventParams)
{
// Get the header HTML width and height from event parameters
float headerHtmlWidth = eventParams.HtmlContentWidthPt;
float headerHtmlHeight = eventParams.HtmlContentHeightPt;
// Calculate the header width from coverter settings
float headerWidth = htmlToPdfConverter.PdfDocumentOptions.PdfPageSize.Width - htmlToPdfConverter.PdfDocumentOptions.LeftMargin -
htmlToPdfConverter.PdfDocumentOptions.RightMargin;
// Calculate a resize factor to fit the header width
float resizeFactor = 1;
if (headerHtmlWidth > headerWidth)
{
resizeFactor = headerWidth / headerHtmlWidth;
}
// Calculate the header height to preserve the HTML aspect ratio
float headerHeight = headerHtmlHeight * resizeFactor;
if (!(headerHeight < htmlToPdfConverter.PdfDocumentOptions.PdfPageSize.Height - htmlToPdfConverter.PdfDocumentOptions.TopMargin -
htmlToPdfConverter.PdfDocumentOptions.BottomMargin))
{
throw new Exception("The header height cannot be bigger than PDF page height");
}
// Set the calculated header height
htmlToPdfConverter.PdfDocumentOptions.DocumentObject.Header.Height = headerHeight;
}
