public void AddU3DImage(U3DInfo u3DInfo)
{
try
{
// page starts from 0 as per spire.pdf
int pageNum = u3DInfo.Page - 1;
if (pageNum < 0)
{
pageNum = 0;
}
if (!(_doc.Pages.Count > pageNum))
{
for (int i = 0; i <= pageNum - _doc.Pages.Count; i++)
{
_doc.Pages.Add();
}
}
PdfPageBase page = _doc.Pages[pageNum];
string name = System.IO.Path.GetFileNameWithoutExtension(u3DInfo.U3DFile);
int y = (int)(u3DInfo.Y - u3DInfo.Height); // adjust the position to map Y to zero by reducing its height - weird ah...
Rectangle rt = new Rectangle((int)u3DInfo.X, y, (int)u3DInfo.Width, (int)u3DInfo.Height);
Pdf3DAnnotation annotation =
new Pdf3DAnnotation(rt, u3DInfo.U3DFile)
{
Activation = new Pdf3DActivation {
ActivationMode = Pdf3DActivationMode.PageOpen
}
};
Pdf3DView view = new Pdf3DView
{
Background = new Pdf3DBackground(new PdfRGBColor(Color.White)),
ViewNodeName = name,
RenderMode = new Pdf3DRendermode(Pdf3DRenderStyle.Solid),
InternalName = name,
LightingScheme = new Pdf3DLighting {
Style = Pdf3DLightingStyle.Headlamp
}
};
annotation.Views.Add(view);
page.AnnotationsWidget.Add(annotation);
}
catch
{
// ignored
}
}
public void FillU3DImageInAcroForm <T>(T detail)
{
IDictionary <String, PdfFormField> fields = _form.GetFormFields();
Type type = detail.GetType();
PropertyInfo[] properties = type.GetProperties();
foreach (PropertyInfo property in properties)
{
PdfFormField toSet;
PdfActionAttribute required = property.GetCustomAttribute <PdfActionAttribute>();
if (fields.TryGetValue(property.Name, out toSet))
{
var value = property.GetValue(detail, null)?.ToString();
PdfFormField field = fields[property.Name];
if (!string.IsNullOrWhiteSpace(value))
{
var widgets = field.GetWidgets();
if (widgets == null || widgets.Count == 0)
{
throw new ArgumentNullException($"no widgets to the field");
}
PdfArray position = widgets.First().GetRectangle();
PdfPage page = field.GetWidgets().First().GetPage();
if (page == null)
{
throw new ArgumentNullException(
$"field widget annotation is not associated with any page");
}
int pageNum = _pdfDoc.GetPageNumber(page);
float width = (float)(position.GetAsNumber(2).GetValue() -
position.GetAsNumber(0).GetValue());
float height = (float)(position.GetAsNumber(3).GetValue() -
position.GetAsNumber(1).GetValue());
var u3DInfo = new U3DInfo
{
Height = height,
Width = width,
X = (float)position.GetAsNumber(0).GetValue(),
Y = (float)position.GetAsNumber(1).GetValue(),
Page = pageNum,
U3DFile = value
};
_u3DInfos.Add(u3DInfo);
_form.RemoveField(field.GetFieldName().ToString());
}
else
{
if (required != null)
{
if (required.Action.Equals(ActionFlag.Required))
{
throw new ArgumentNullException($"No {property.Name} image found");
}
if (required.Action.Equals(ActionFlag.Optional))
{
_form.RemoveField(field.GetFieldName().ToString());
continue;
}
if (required.Action.Equals(ActionFlag.NotAvailable))
{
toSet.SetValue("N/A").SetFontSizeAutoScale().SetReadOnly(true);
}
}
}
}
}
// close the target pdf first:
_pdfDoc?.Close();
using (var helper = new U3DImageHelper(TargetFile))
{
foreach (var u3DInfo in _u3DInfos)
{
helper.AddU3DImage(u3DInfo);
}
}
// reopen the target pdf:
_temporaryFile = Path.Combine(Path.GetDirectoryName(TargetFile), $"temp_{DateTime.Now.Ticks}.pdf");
File.Move(TargetFile, _temporaryFile);
Init(TargetFile, _temporaryFile);
}
