private static void ApplyMagnification(uImageControl image, double magnificationValue)
{
if (image.part_µImage != null)
{
ScaleTransform obj = (ScaleTransform)image.part_µImage.LayoutTransform;
obj.ScaleX = obj.ScaleY = magnificationValue;
RenderOptions.SetBitmapScalingMode(image.part_µImage, BitmapScalingMode.HighQuality); //ToDo: depends on zoom or external settings
image.part_µZoom.Text = $"{magnificationValue*100:N0}%";
}
if (image.part_µROI != null)
{
ScaleTransform obj2 = (ScaleTransform)image.part_µROI.LayoutTransform;
obj2.ScaleX = magnificationValue;
obj2.ScaleY = magnificationValue;
}
}
//https://docs.microsoft.com/en-us/dotnet/api/system.windows.dependencypropertychangedeventargs?view=netcore-3.1
private static void OnGetLastEventDataChanged(DependencyObject obj, DependencyPropertyChangedEventArgs args)
{
uImageControl imageControl = (uImageControl)obj;
ROIDescriptor.LastEventData lastEventData = (ROIDescriptor.LastEventData)args.NewValue;
ROIDescriptor.LastEventData other = (ROIDescriptor.LastEventData)args.OldValue;
if (lastEventData.type == EventType.Draw)
{
ROIDescriptor lastROIDescriptor = imageControl._lastROIDescriptor;
ROIDescriptor previousROIDescriptor = imageControl.GetROIDescriptor();
if (!lastEventData.IsChanged(other) || !previousROIDescriptor.IsChanged(lastROIDescriptor))
{
imageControl._lastROIDescriptor = previousROIDescriptor;
imageControl.OnROIValueChanged(new ROIValueChangedEventArgs(lastEventData, lastROIDescriptor, previousROIDescriptor));
}
}
}