/// <summary>
/// Creates an empty flight plan
/// </summary>
public FlightPlanModel()
{
#if DEBUG
if (DesignHelper.IsInDesignMode())
{
Waypoints = new ObservableCollection <WaypointModel>(new List <WaypointModel>
{
new WaypointModel()
{
Identifier = "ID1", Latitude = 6.66, Longitude = 12.89
},
new WaypointModel()
{
Identifier = "ID2", Latitude = -6.66, Longitude = 12.89
},
new WaypointModel()
{
Identifier = "ID3", Latitude = 6.66, Longitude = -12.89
},
new WaypointModel()
{
Identifier = "ID4", Latitude = -6.66, Longitude = -12.89
},
});
}
#endif
}
private static void ValueChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
if (DesignHelper.IsInDesignMode())
{
return;
}
bool value = (bool)e.NewValue;
if (!value)
{
return;
}
FrameworkElement fe = d as FrameworkElement;
if (fe == null)
{
return;
}
Type type = FindViewModel(fe);
if (type == null)
{
return;
}
Type interfaceType = typeof(INavigationBase);
object vm = null;
//没有继承INavigationAware，默认SaveViewModel=false
if (interfaceType.IsAssignableFrom(type))
{
//查下这个type是否被缓存了
object tmp = ViewModelResposity.Get(type);
if (tmp == null)
{
tmp = Activator.CreateInstance(type);
}
INavigationBase @base = tmp as INavigationBase;
bool isSave = @base.SaveViewModel();
if (isSave)
{
vm = tmp;
}
}
if (vm == null)
{
vm = Activator.CreateInstance(type);
}
ViewModelResposity.Save(vm);
fe.DataContext = vm;
}
public PlanPointsPartViewModelDesign(bool createParent) : base(null, null, null, null)
{
if (createParent && DesignHelper.IsInDesignMode())
{
var fpvm = new FlightPlanViewModelDesign(this)
{
FlightPlan = new Model.FlightPlanModel()
};
ParentFlightPlan = fpvm;
}
}
