private bool LabelMouseDown(PointF imagePoint, long currentTimestamp, ImageToViewportTransformer transformer)
{
bool hitExisting = false;
foreach (DrawingText label in metadata.Labels())
{
int hit = label.HitTest(imagePoint, currentTimestamp, metadata.CalibrationHelper.DistortionHelper, transformer, metadata.CoordinateSystem.Zooming);
if (hit >= 0)
{
hitExisting = true;
label.SetEditMode(true, transformer);
}
}
return(hitExisting);
}