public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
string imageId = value as string;
var image = new Bitmap(80, 20);
if (parameter != null)
{
string strParameter = parameter.ToString();
float fontSize = float.Parse(strParameter);
ModuleGlobeSpotter globeSpotter = ModuleGlobeSpotter.Current;
ViewerList viewerList = globeSpotter.ViewerList;
Viewer thisViewer = viewerList.Get(imageId);
Color color = thisViewer?.Color ?? Color.Gray;
Brush brush = new SolidBrush(Color.FromArgb(255, color));
using (var sf = new StringFormat())
{
using (var ga = Graphics.FromImage(image))
{
ga.Clear(Color.Transparent);
Rectangle rectangle = new Rectangle(2, 2, 76, 16);
ga.DrawRectangle(new Pen(Brushes.Black, 1), rectangle);
ga.FillRectangle(brush, rectangle);
sf.Alignment = StringAlignment.Center;
Font font = new Font("Arial", fontSize);
ga.DrawString(imageId, font, Brushes.Black, rectangle, sf);
}
}
}
return(image.ToBitmapSource());
}
public MeasurementObservation(MeasurementPoint measurementPoint, string imageId, MapPoint observationPoint, Bitmap match, double xDir, double yDir)
{
XDir = xDir;
YDir = yDir;
_measurementPoint = measurementPoint;
ImageId = imageId;
Point = observationPoint;
Match = match;
GlobeSpotter globeSpotter = GlobeSpotter.Current;
ViewerList viewerList = globeSpotter.ViewerList;
Viewer = viewerList.Get(imageId);
// event listeners
_measurementPoint.PropertyChanged += OnPropertyMeasurementPointChanged;
PropertyChanged += OnPropertyMeasurementObservationChanged;
MapViewCameraChangedEvent.Subscribe(OnMapViewCameraChanged);
viewerList.ViewerAdded += OnViewerAdded;
viewerList.ViewerRemoved += OnViewerRemoved;
viewerList.ViewerMoved += OnViewerMoved;
}
public void OnImageChanged(uint viewerId)
{
Viewer viewer = _viewerList.Get(viewerId);
if ((viewer != null) && (_api != null))
{
string imageId = _api.GetImageID(viewerId);
viewer.ImageId = imageId;
if (viewer.HasMarker)
{
viewer.HasMarker = false;
List <Viewer> markerViewers = _viewerList.MarkerViewers;
if (markerViewers.Count == 0 && _crossCheck != null)
{
_crossCheck.Dispose();
_crossCheck = null;
}
}
}
}