/// <summary>
/// Gets the DICOM graphics plane of the specified DICOM presentation image.
/// </summary>
/// <param name="dicomPresentationImage">The target DICOM presentation image.</param>
/// <param name="createIfNecessary">A value indicating if a DICOM graphics plane should be automatically created and associated with the presentation image.</param>
/// <returns>The DICOM graphics plane associated with the specified presentation image, or null if one doesn't exist and was not created.</returns>
public static DicomGraphicsPlane GetDicomGraphicsPlane(IDicomPresentationImage dicomPresentationImage, bool createIfNecessary)
{
if (dicomPresentationImage == null)
{
return(null);
}
GraphicCollection dicomGraphics = dicomPresentationImage.DicomGraphics;
DicomGraphicsPlane dicomGraphicsPlane = dicomGraphics.FirstOrDefault(IsType <DicomGraphicsPlane>) as DicomGraphicsPlane;
if (dicomGraphicsPlane == null && createIfNecessary)
{
dicomGraphics.Add(dicomGraphicsPlane = new DicomGraphicsPlane());
}
return(dicomGraphicsPlane);
}
public UserOverlaysCollection(DicomGraphicsPlane owner)
{
_owner = owner;
_overlays = new List <OverlayPlaneGraphic>();
}
public OverlaysCollection(DicomGraphicsPlane owner)
{
_owner = owner;
_overlays = new OverlayPlaneGraphic[16];
}
private static void DeserializeHeader(IDicomPresentationImage image)
{
bool anyFailures = false;
DicomGraphicsPlane dicomGraphicsPlane = DicomGraphicsPlane.GetDicomGraphicsPlane(image, true);
if (dicomGraphicsPlane == null)
{
throw new DicomGraphicsDeserializationException("Unknown exception.");
}
// Check if the image header specifies a bitmap display shutter
BitmapDisplayShutterModuleIod bitmapShutterIod = new BitmapDisplayShutterModuleIod(image.ImageSop.DataSource);
int bitmapShutterIndex = -1;
if (bitmapShutterIod.ShutterShape == ShutterShape.Bitmap)
{
bitmapShutterIndex = bitmapShutterIod.ShutterOverlayGroupIndex;
}
if (bitmapShutterIndex < 0 || bitmapShutterIndex > 15)
{
bitmapShutterIndex = -1;
}
try
{
GeometricShuttersGraphic geometricShuttersGraphic = DicomGraphicsFactory.CreateGeometricShuttersGraphic(image.Frame);
dicomGraphicsPlane.Shutters.Add(geometricShuttersGraphic);
}
catch (Exception e)
{
anyFailures = true;
Platform.Log(LogLevel.Warn, e, "An error occurred trying to create geometric shutter graphics from the image header.");
}
try
{
List <OverlayPlaneGraphic> overlayPlaneGraphics = DicomGraphicsFactory.CreateOverlayPlaneGraphics(image.Frame);
foreach (OverlayPlaneGraphic overlay in overlayPlaneGraphics)
{
if (bitmapShutterIndex != -1 && overlay.Index == bitmapShutterIndex)
{
// Someday when we support CIELab colour, we should set presentation value/colour based on client display type
if (bitmapShutterIod.ShutterPresentationValue != null)
{
overlay.GrayPresentationValue = (ushort)bitmapShutterIod.ShutterPresentationValue;
}
overlay.Color = null;
// insert the bitmap shutter into the shutters graphic instead of with the other overlays
dicomGraphicsPlane.Shutters.Add(overlay);
}
else if (overlay.Index >= 0 && overlay.Index < 16)
{
// otherwise just add the overlay to the default layer for overlays and activate immediately
dicomGraphicsPlane.ImageOverlays.Add(overlay);
dicomGraphicsPlane.ImageOverlays.ActivateAsLayer(overlay, "OVERLAY");
}
else
{
// otherwise just add the overlay to the default layer for overlays and activate immediately
dicomGraphicsPlane.UserOverlays.Add(overlay);
dicomGraphicsPlane.UserOverlays.ActivateAsLayer(overlay, "OVERLAY");
}
}
}
catch (Exception e)
{
anyFailures = true;
Platform.Log(LogLevel.Warn, e, "An error occurred trying to create overlay graphics from the image header.");
}
dicomGraphicsPlane.Shutters.ActivateFirst();
if (anyFailures)
{
throw new DicomGraphicsDeserializationException("At least one failure occurred in deserializing graphics from the image header.");
}
}
