/**
* <summary>Wraps a destination base object into a destination object.</summary>
* <param name="baseObject">Destination base object.</param>
* <returns>Destination object associated to the base object.</returns>
*/
public static Destination Wrap(
PdfDirectObject baseObject
)
{
if (baseObject == null)
{
return(null);
}
PdfArray dataObject = (PdfArray)baseObject.Resolve();
PdfDirectObject pageObject = dataObject[0];
if (pageObject is PdfReference)
{
return(new LocalDestination(baseObject));
}
else if (pageObject is PdfInteger)
{
return(new RemoteDestination(baseObject));
}
else
{
throw new ArgumentException("Not a valid destination object.", "baseObject");
}
}
public IPdfObjectWrapper Wrap(
PdfDirectObject baseObject
)
{
if (baseObject.Resolve() is PdfArray)
{
return(VisibilityExpression.Wrap(baseObject));
}
else
{
return(Layer.Wrap(baseObject));
}
}
public bool MoveNext()
{
if (nextObject == null)
{
return(false);
}
currentObject = nextObject;
nextObject = ((PdfDictionary)currentObject.Resolve())[PdfName.N];
if (nextObject == firstObject) // Looping back.
{
nextObject = null;
}
return(true);
}
public IPdfObjectWrapper Wrap(PdfDirectObject baseObject)
{
if (baseObject.Wrapper is IPdfObjectWrapper wrapper)
{
return(wrapper);
}
if (baseObject.Resolve() is PdfArray)
{
return(Wrap <VisibilityExpression>(baseObject));
}
else
{
return(Wrap <Layer>(baseObject));
}
}
public static ILayerNode Wrap(
PdfDirectObject baseObject
)
{
if(baseObject == null)
return null;
PdfDataObject baseDataObject = baseObject.Resolve();
if(baseDataObject is PdfDictionary)
return Layer.Wrap(baseObject);
else if(baseDataObject is PdfArray)
return Layers.Wrap(baseObject);
else
throw new ArgumentException(baseDataObject.GetType().Name + " is NOT a valid layer node.");
}
/**
* <summary>Wraps a font reference into a font object.</summary>
* <param name="baseObject">Font base object.</param>
* <returns>Font object associated to the reference.</returns>
*/
public static Font Wrap(PdfDirectObject baseObject)
{
if (baseObject == null)
{
return(null);
}
if (baseObject.Wrapper is Font font)
{
return(font);
}
if (baseObject is PdfReference pdfReference &&
pdfReference.DataObject?.Wrapper is Font referenceFont)
{
baseObject.Wrapper = referenceFont;
return(referenceFont);
}
// Has the font been already instantiated?
/*
* NOTE: Font structures are reified as complex objects, both IO- and CPU-intensive to load.
* So, it's convenient to retrieve them from a common cache whenever possible.
*/
if (baseObject.File.Document.Cache.TryGetValue(baseObject, out var cache))
{
return((Font)cache);
}
PdfDictionary fontDictionary = (PdfDictionary)baseObject.Resolve();
PdfName fontType = (PdfName)fontDictionary[PdfName.Subtype];
if (fontType == null)
{
throw new Exception("Font type undefined (reference: " + baseObject + ")");
}
if (fontType.Equals(PdfName.Type1)) // Type 1.
{
var fd = fontDictionary.Resolve(PdfName.FontDescriptor);
if (fd is PdfDictionary fdDictionary && fdDictionary.ContainsKey(PdfName.FontFile3))
{
return(new PdfType1CFont(baseObject));
}
else
{
return(new PdfType1Font(baseObject));
}
}
IEnumerator <Bookmark> IEnumerable <Bookmark> .GetEnumerator(
)
{
PdfDirectObject bookmarkObject = BaseDataObject[PdfName.First];
if (bookmarkObject == null)
{
yield break;
}
do
{
yield return(new Bookmark(bookmarkObject));
bookmarkObject = ((PdfDictionary)bookmarkObject.Resolve())[PdfName.Next];
}while(bookmarkObject != null);
}
/**
* <summary>Wraps a language identifier base object into a language identifier object.</summary>
*/
public static LanguageIdentifier Wrap(
PdfDirectObject baseObject
)
{
if (baseObject == null)
{
return(null);
}
if (baseObject.Resolve() is PdfTextString)
{
return(new LanguageIdentifier(baseObject));
}
else
{
throw new ArgumentException("It doesn't represent a valid language identifier object.", "baseObject");
}
}
/**
* <summary>Wraps a function base object into a function object.</summary>
* <param name="baseObject">Function base object.</param>
* <returns>Function object associated to the base object.</returns>
*/
public static Function Wrap(PdfDirectObject baseObject)
{
if (baseObject == null)
{
return(null);
}
if (baseObject.Wrapper is Function function)
{
return(function);
}
if (baseObject is PdfReference pdfReference && pdfReference.DataObject?.Wrapper is Function referenceFunction)
{
baseObject.Wrapper = referenceFunction;
return(referenceFunction);
}
var dataObject = baseObject.Resolve();
var dictionary = GetDictionary(dataObject);
int functionType = ((PdfInteger)dictionary[PdfName.FunctionType]).RawValue;
switch (functionType)
{
case FunctionType0:
return(new Type0Function(baseObject));
case FunctionType2:
return(new Type2Function(baseObject));
case FunctionType3:
return(new Type3Function(baseObject));
case FunctionType4:
return(new Type4Function(baseObject));
default:
throw new NotSupportedException("Function type " + functionType + " unknown.");
}
}
//TODO:shading types!
#region static
#region interface
#region public
public static Shading Wrap(PdfDirectObject baseObject)
{
if (baseObject == null)
{
return(null);
}
if (baseObject.Wrapper is Shading shading)
{
return(shading);
}
if (baseObject is PdfReference reference && reference.DataObject?.Wrapper is Shading referenceShading)
{
baseObject.Wrapper = referenceShading;
return(referenceShading);
}
var dataObject = baseObject.Resolve();
var dictionary = TryGetDictionary(dataObject);
var type = ((PdfInteger)dictionary.Resolve(PdfName.ShadingType))?.RawValue;
switch (type)
{
case 1: return(new FunctionBasedShading(baseObject));
case 2: return(new AxialShading(baseObject));
case 3: return(new RadialShading(baseObject));
case 4: return(new FreeFormShading(baseObject));
case 5: return(new LatticeFormShading(baseObject));
case 6: return(new CoonsFormShading(baseObject));
case 7: return(new TensorProductShading(baseObject));
}
return(new Shading(baseObject));
} //TODO:shading types!
public static MediaOffset Wrap(
PdfDirectObject baseObject
)
{
if (baseObject == null)
{
return(null);
}
PdfDictionary dataObject = (PdfDictionary)baseObject.Resolve();
PdfName offsetType = (PdfName)dataObject[PdfName.S];
if (offsetType == null ||
(dataObject.ContainsKey(PdfName.Type) &&
!dataObject[PdfName.Type].Equals(PdfName.MediaOffset)))
{
return(null);
}
if (offsetType.Equals(PdfName.F))
{
return(new Frame(baseObject));
}
else if (offsetType.Equals(PdfName.M))
{
return(new Marker(baseObject));
}
else if (offsetType.Equals(PdfName.T))
{
return(new Time(baseObject));
}
else
{
throw new NotSupportedException();
}
}
/**
* <summary>Wraps a language identifier base object into a language identifier object.</summary>
*/
public static LanguageIdentifier Wrap(PdfDirectObject baseObject)
{
if (baseObject == null)
{
return(null);
}
if (baseObject.Wrapper is LanguageIdentifier identifier)
{
return(identifier);
}
if (baseObject is PdfReference pdfReference && pdfReference.DataObject?.Wrapper is LanguageIdentifier referenceIdentifier)
{
baseObject.Wrapper = referenceIdentifier;
return(referenceIdentifier);
}
if (baseObject.Resolve() is PdfTextString)
{
return(new LanguageIdentifier(baseObject));
}
else
{
throw new ArgumentException("It doesn't represent a valid language identifier object.", "baseObject");
}
}
/**
* <summary>Wraps an external object reference into an external object.</summary>
* <param name="baseObject">External object base object.</param>
* <returns>External object associated to the reference.</returns>
*/
public static XObject Wrap(
PdfDirectObject baseObject
)
{
if (baseObject == null)
{
return(null);
}
PdfName subtype = (PdfName)((PdfStream)baseObject.Resolve()).Header[PdfName.Subtype];
if (PdfName.Form.Equals(subtype))
{
return(FormXObject.Wrap(baseObject));
}
else if (PdfName.Image.Equals(subtype))
{
return(ImageXObject.Wrap(baseObject));
}
else
{
return(null);
}
}
/**
* <summary>Wraps the specified base object into a property list object.</summary>
* <param name="baseObject">Base object of a property list object.</param>
* <returns>Property list object corresponding to the base object.</returns>
*/
public static PropertyList Wrap(
PdfDirectObject baseObject
)
{
if (baseObject == null)
{
return(null);
}
PdfName type = (PdfName)((PdfDictionary)baseObject.Resolve())[PdfName.Type];
if (Layer.TypeName.Equals(type))
{
return(Layer.Wrap(baseObject));
}
else if (LayerMembership.TypeName.Equals(type))
{
return(LayerMembership.Wrap(baseObject));
}
else
{
return(new PropertyList(baseObject));
}
}
/**
* <summary>Wraps a rendition base object into a rendition object.</summary>
* <param name="baseObject">Rendition base object.</param>
* <returns>Rendition object associated to the base object.</returns>
*/
public static Rendition Wrap(
PdfDirectObject baseObject
)
{
if (baseObject == null)
{
return(null);
}
PdfName subtype = (PdfName)((PdfDictionary)baseObject.Resolve())[PdfName.S];
if (PdfName.MR.Equals(subtype))
{
return(new MediaRendition(baseObject));
}
else if (PdfName.SR.Equals(subtype))
{
return(new SelectorRendition(baseObject));
}
else
{
throw new ArgumentException("It doesn't represent a valid clip object.", "baseObject");
}
}
public static ILayerNode Wrap(
PdfDirectObject baseObject
)
{
if (baseObject == null)
{
return(null);
}
PdfDataObject baseDataObject = baseObject.Resolve();
if (baseDataObject is PdfDictionary)
{
return(Layer.Wrap(baseObject));
}
else if (baseDataObject is PdfArray)
{
return(Layers.Wrap(baseObject));
}
else
{
throw new ArgumentException(baseDataObject.GetType().Name + " is NOT a valid layer node.");
}
}
/**
* <summary>Wraps an annotation base object into an annotation object.</summary>
* <param name="baseObject">Annotation base object.</param>
* <returns>Annotation object associated to the base object.</returns>
*/
public static Annotation Wrap(PdfDirectObject baseObject)
{
if (baseObject == null)
{
return(null);
}
if (baseObject.Wrapper is Annotation annotation)
{
return(annotation);
}
if (baseObject is PdfReference reference && reference.DataObject?.Wrapper is Annotation referenceAnnotation)
{
baseObject.Wrapper = referenceAnnotation;
return(referenceAnnotation);
}
var dictionary = baseObject.Resolve() as PdfDictionary;
if (dictionary == null)
{
return(null);
}
PdfName annotationType = (PdfName)dictionary[PdfName.Subtype];
if (annotationType.Equals(PdfName.Text))
{
return(new StickyNote(baseObject));
}
else if (annotationType.Equals(PdfName.Link))
{
return(new Link(baseObject));
}
else if (annotationType.Equals(PdfName.FreeText))
{
return(new FreeText(baseObject));
}
else if (annotationType.Equals(PdfName.Line))
{
return(new Line(baseObject));
}
else if (annotationType.Equals(PdfName.Square))
{
return(new Rectangle(baseObject));
}
else if (annotationType.Equals(PdfName.Circle))
{
return(new Ellipse(baseObject));
}
else if (annotationType.Equals(PdfName.Polygon))
{
return(new Polygon(baseObject));
}
else if (annotationType.Equals(PdfName.PolyLine))
{
return(new Polyline(baseObject));
}
else if (annotationType.Equals(PdfName.Highlight) ||
annotationType.Equals(PdfName.Underline) ||
annotationType.Equals(PdfName.Squiggly) ||
annotationType.Equals(PdfName.StrikeOut))
{
return(new TextMarkup(baseObject));
}
else if (annotationType.Equals(PdfName.Stamp))
{
return(new Stamp(baseObject));
}
else if (annotationType.Equals(PdfName.Caret))
{
return(new Caret(baseObject));
}
else if (annotationType.Equals(PdfName.Ink))
{
return(new Scribble(baseObject));
}
else if (annotationType.Equals(PdfName.Popup))
{
return(new Popup(baseObject));
}
else if (annotationType.Equals(PdfName.FileAttachment))
{
return(new FileAttachment(baseObject));
}
else if (annotationType.Equals(PdfName.Sound))
{
return(new Sound(baseObject));
}
else if (annotationType.Equals(PdfName.Movie))
{
return(new Movie(baseObject));
}
else if (annotationType.Equals(PdfName.Widget))
{
return(new Widget(baseObject));
}
else if (annotationType.Equals(PdfName.Screen))
{
return(new Screen(baseObject));
}
//TODO
// else if(annotationType.Equals(PdfName.PrinterMark)) return new PrinterMark(baseObject);
// else if(annotationType.Equals(PdfName.TrapNet)) return new TrapNet(baseObject);
// else if(annotationType.Equals(PdfName.Watermark)) return new Watermark(baseObject);
// else if(annotationType.Equals(PdfName.3DAnnotation)) return new 3DAnnotation(baseObject);
else // Other annotation type.
{
return(new GenericAnnotation(baseObject));
}
}
/**
* <summary>Wraps an annotation base object into an annotation object.</summary>
* <param name="baseObject">Annotation base object.</param>
* <returns>Annotation object associated to the base object.</returns>
*/
public static Annotation Wrap(
PdfDirectObject baseObject
)
{
if (baseObject == null)
{
return(null);
}
PdfName annotationType = (PdfName)((PdfDictionary)baseObject.Resolve())[PdfName.Subtype];
if (annotationType.Equals(PdfName.Text))
{
return(new Note(baseObject));
}
else if (annotationType.Equals(PdfName.Link))
{
return(new Link(baseObject));
}
else if (annotationType.Equals(PdfName.FreeText))
{
return(new CalloutNote(baseObject));
}
else if (annotationType.Equals(PdfName.Line))
{
return(new Line(baseObject));
}
else if (annotationType.Equals(PdfName.Square))
{
return(new Rectangle(baseObject));
}
else if (annotationType.Equals(PdfName.Circle))
{
return(new Ellipse(baseObject));
}
else if (annotationType.Equals(PdfName.Polygon))
{
return(new Polygon(baseObject));
}
else if (annotationType.Equals(PdfName.PolyLine))
{
return(new Polyline(baseObject));
}
else if (annotationType.Equals(PdfName.Highlight) ||
annotationType.Equals(PdfName.Underline) ||
annotationType.Equals(PdfName.Squiggly) ||
annotationType.Equals(PdfName.StrikeOut))
{
return(new TextMarkup(baseObject));
}
else if (annotationType.Equals(PdfName.Stamp))
{
return(new RubberStamp(baseObject));
}
else if (annotationType.Equals(PdfName.Caret))
{
return(new Caret(baseObject));
}
else if (annotationType.Equals(PdfName.Ink))
{
return(new Scribble(baseObject));
}
else if (annotationType.Equals(PdfName.Popup))
{
return(new Popup(baseObject));
}
else if (annotationType.Equals(PdfName.FileAttachment))
{
return(new FileAttachment(baseObject));
}
else if (annotationType.Equals(PdfName.Sound))
{
return(new Sound(baseObject));
}
else if (annotationType.Equals(PdfName.Movie))
{
return(new Movie(baseObject));
}
else if (annotationType.Equals(PdfName.Widget))
{
return(new Widget(baseObject));
}
else if (annotationType.Equals(PdfName.Screen))
{
return(new Screen(baseObject));
}
//TODO
// else if(annotationType.Equals(PdfName.PrinterMark)) return new PrinterMark(baseObject);
// else if(annotationType.Equals(PdfName.TrapNet)) return new TrapNet(baseObject);
// else if(annotationType.Equals(PdfName.Watermark)) return new Watermark(baseObject);
// else if(annotationType.Equals(PdfName.3DAnnotation)) return new 3DAnnotation(baseObject);
else // Other annotation type.
{
return(new Annotation(baseObject));
}
}
/**
<summary>Wraps the specified base object into a pattern object.</summary>
<param name="baseObject">Base object of a pattern object.</param>
<returns>Pattern object corresponding to the base object.</returns>
*/
public static Pattern Wrap(
PdfDirectObject baseObject
)
{
if(baseObject == null)
return null;
PdfDataObject dataObject = baseObject.Resolve();
PdfDictionary dictionary = GetDictionary(dataObject);
int patternType = ((PdfInteger)dictionary[PdfName.PatternType]).RawValue;
switch(patternType)
{
case PatternType1:
return new TilingPattern(baseObject);
case PatternType2:
return new ShadingPattern(baseObject);
default:
throw new NotSupportedException("Pattern type " + patternType + " unknown.");
}
}
public override void AfterClone(
Cloner cloner,
PdfArray parent,
int index,
PdfDirectObject item
)
{
PdfDictionary annotation = (PdfDictionary)item.Resolve();
if(annotation.ContainsKey(PdfName.FT))
{cloner.context.Document.Form.Fields.Add(Field.Wrap(annotation.Reference));}
}
/**
* <summary>Wraps an action base object into an action object.</summary>
* <param name="baseObject">Action base object.</param>
* <returns>Action object associated to the base object.</returns>
*/
public static Action Wrap(PdfDirectObject baseObject)
{
if (baseObject == null)
{
return(null);
}
if (baseObject.Wrapper is Action action)
{
return(action);
}
if (baseObject is PdfReference pdfReference && pdfReference.DataObject?.Wrapper is Action referenceAction)
{
baseObject.Wrapper = referenceAction;
return(referenceAction);
}
PdfDictionary dataObject = (PdfDictionary)baseObject.Resolve();
PdfName actionType = (PdfName)dataObject[PdfName.S];
if (actionType == null ||
(dataObject.ContainsKey(PdfName.Type) &&
!dataObject[PdfName.Type].Equals(PdfName.Action)))
{
return(null);
}
if (actionType.Equals(PdfName.GoTo))
{
return(new GoToLocal(baseObject));
}
else if (actionType.Equals(PdfName.GoToR))
{
return(new GoToRemote(baseObject));
}
else if (actionType.Equals(PdfName.GoToE))
{
return(new GoToEmbedded(baseObject));
}
else if (actionType.Equals(PdfName.Launch))
{
return(new Launch(baseObject));
}
else if (actionType.Equals(PdfName.Thread))
{
return(new GoToThread(baseObject));
}
else if (actionType.Equals(PdfName.URI))
{
return(new GoToURI(baseObject));
}
else if (actionType.Equals(PdfName.Sound))
{
return(new PlaySound(baseObject));
}
else if (actionType.Equals(PdfName.Movie))
{
return(new PlayMovie(baseObject));
}
else if (actionType.Equals(PdfName.Hide))
{
return(new ToggleVisibility(baseObject));
}
else if (actionType.Equals(PdfName.Named))
{
PdfName actionName = (PdfName)dataObject[PdfName.N];
if (actionName.Equals(PdfName.NextPage))
{
return(new GoToNextPage(baseObject));
}
else if (actionName.Equals(PdfName.PrevPage))
{
return(new GoToPreviousPage(baseObject));
}
else if (actionName.Equals(PdfName.FirstPage))
{
return(new GoToFirstPage(baseObject));
}
else if (actionName.Equals(PdfName.LastPage))
{
return(new GoToLastPage(baseObject));
}
else // Custom named action.
{
return(new NamedAction(baseObject));
}
}
else if (actionType.Equals(PdfName.SubmitForm))
{
return(new SubmitForm(baseObject));
}
else if (actionType.Equals(PdfName.ResetForm))
{
return(new ResetForm(baseObject));
}
else if (actionType.Equals(PdfName.ImportData))
{
return(new ImportData(baseObject));
}
else if (actionType.Equals(PdfName.JavaScript))
{
return(new JavaScript(baseObject));
}
else if (actionType.Equals(PdfName.SetOCGState))
{
return(new SetLayerState(baseObject));
}
else if (actionType.Equals(PdfName.Rendition))
{
return(new Render(baseObject));
}
else if (actionType.Equals(PdfName.Trans))
{
return(new DoTransition(baseObject));
}
else if (actionType.Equals(PdfName.GoTo3DView))
{
return(new GoTo3dView(baseObject));
}
else // Custom action.
{
return(new Action(baseObject));
}
}