public AnnotationsFromCodeViewController(NSData documentData)
: base(new PSPDFDocument (documentData))
{
Document.Title = "Programmatically create annotations";
var annotationsList = new List<PSPDFAnnotation> ();
float maxHeight = Document.PageInfoForPage (0).RotatedPageRect.Size.Height;
for (int i = 0; i < 5; i++) {
var note = new PSPDFNoteAnnotation () {
BoundingBox = new RectangleF (new PointF (100, (50 + i * maxHeight / 5)), PSPDFNoteAnnotation.ViewFixedSize),
Contents = string.Format ("Note {0}", (5 - i)) // notes are added bottom-up
};
annotationsList.Add (note);
}
annotationsArr = annotationsList.ToArray ();
Document.AddAnnotations (annotationsArr);
}
public PSPDFAnnotation[] AnnotationsForPage(uint page)
{
// it's important that this method is:
// - fast
// - thread safe
// - and caches annotations (don't always create new objects!)
lock (this) {
if (annotations[(int)page] == null) {
// create new note annotation and add it to the dict.
var documentProvider = ProviderDelegate.ParentDocumentProvider ();
var pageInfo = documentProvider.Document.PageInfoForPage (page);
var noteAnnotation = new PSPDFNoteAnnotation () {
Page = page,
DocumentProvider = documentProvider,
Contents = string.Format ("Annotation from the custom annotationProvider for page {0}.", page + 1),
// place it top left (PDF coordinate space starts from bottom left)
BoundingBox = new RectangleF (100, pageInfo.RotatedPageRect.Size.Height - 100, 32, 32),
Editable = false
};
annotations [(int)page] = noteAnnotation;
}
}
return new PSPDFAnnotation[] { annotations[(int)page] };
}