static bool ContentsSync(MarsMarkerLibrary marsMarkerLibrary, XRReferenceImageLibrary xrReferenceImageLibrary)
{
var needsSave = false;
// Find all changes and synchronize
var referenceImages = new Dictionary <Guid, XRReferenceImage>();
foreach (var xrRefImage in xrReferenceImageLibrary)
{
referenceImages.Add(xrRefImage.guid, xrRefImage);
}
var markersToAdd = new List <MarsMarkerDefinition>();
var markersToUpdateDictionary = new Dictionary <MarsMarkerDefinition, XRReferenceImage>();
foreach (var marsDefinition in marsMarkerLibrary)
{
if (referenceImages.ContainsKey(marsDefinition.MarkerId))
{
var refImage = referenceImages[marsDefinition.MarkerId];
if (refImage.name != marsDefinition.Label || refImage.specifySize != marsDefinition.SpecifySize ||
refImage.size != marsDefinition.Size || refImage.texture != marsDefinition.Texture)
{
markersToUpdateDictionary.Add(marsDefinition, refImage);
needsSave = true;
}
referenceImages.Remove(marsDefinition.MarkerId);
}
else
{
markersToAdd.Add(marsDefinition);
needsSave = true;
}
}
// Whatever is left in referenceImages needs to be deleted, since none of the marker definitions match
needsSave = needsSave || referenceImages.Count > 0;
foreach (var refImageEntry in referenceImages)
{
var index = xrReferenceImageLibrary.indexOf(refImageEntry.Value);
xrReferenceImageLibrary.RemoveAt(index);
}
foreach (var marsMarkerDefinition in markersToAdd)
{
var refImage = AddRefImageFromMarker(xrReferenceImageLibrary, marsMarkerDefinition);
marsMarkerLibrary.SetGuid(marsMarkerLibrary.IndexOf(marsMarkerDefinition), refImage.guid);
}
foreach (var dictEntry in markersToUpdateDictionary)
{
var index = xrReferenceImageLibrary.indexOf(dictEntry.Value);
UpdateRefImage(xrReferenceImageLibrary, index, dictEntry.Key);
}
return(needsSave);
}
