internal static void ReadFromStream(PDFDocument pdf_document, PDFHightlightList highlights, Dictionary <string, byte[]> /* can be null */ library_items_highlights_cache)
{
WPFDoEvents.AssertThisCodeIs_NOT_RunningInTheUIThread();
byte[] highlights_data = null;
if (null != library_items_highlights_cache)
{
library_items_highlights_cache.TryGetValue(pdf_document.Fingerprint, out highlights_data);
}
else
{
List <LibraryDB.LibraryItem> library_items = pdf_document.LibraryRef.Xlibrary.LibraryDB.GetLibraryItems(PDFDocumentFileLocations.HIGHLIGHTS, new List <string>()
{
pdf_document.Fingerprint
});
ASSERT.Test(library_items.Count < 2);
if (0 < library_items.Count)
{
highlights_data = library_items[0].data;
}
}
if (null != highlights_data)
{
try
{
List <PDFHighlight> highlights_list = null;
// First try normal
try
{
highlights_list = ReadFromStream_JSON(highlights_data);
}
catch (Exception)
{
highlights_list = ReadFromStream_PROTOBUF(highlights_data);
FeatureTrackingManager.Instance.UseFeature(Features.Legacy_Highlights_ProtoBuf);
}
if (null != highlights_list)
{
foreach (PDFHighlight highlight in highlights_list)
{
pdf_document.AddUpdatedHighlight(highlight);
}
}
}
catch (Exception ex)
{
Logging.Error(ex, "There was a problem loading the Highlights for document {0}", pdf_document.Fingerprint);
}
}
}
internal static List <PDFAnnotation> GenerateAnnotations(PDFDocument pdf_document, Dictionary <string, byte[]> library_items_highlights_cache)
{
List <PDFAnnotation> annotations = new List <PDFAnnotation>();
if (pdf_document.DocumentExists)
{
PDFHightlightList highlight_list = pdf_document.GetHighlights(library_items_highlights_cache);
foreach (int page in highlight_list.GetAffectedPages())
{
annotations.AddRange(GenerateAnnotations(pdf_document, page, highlight_list));
}
}
return(annotations);
}
internal static List <PDFAnnotation> GenerateAnnotations(PDFDocument pdf_document, int page, PDFHightlightList highlight_list)
{
List <RegionOfInterest> regions = new List <RegionOfInterest>();
// Collect all the highlights on this page
foreach (var highlight in highlight_list.GetHighlightsForPage(page))
{
if (page == highlight.Page && 0 != highlight.Width)
{
regions.Add(new RegionOfInterest(highlight.Left, highlight.Top, highlight.Width, highlight.Height));
}
}
RegionOfInterest.AggregateRegions(regions);
// Build a list of annotations
List <PDFAnnotation> annotations = RegionOfInterest.ConvertRegionsToPDFAnnotations(regions, HIGHLIGHTS_TAG, pdf_document, page);
return(annotations);
}
