public void RemovePoint(LfDragablePointViewModel point)
{
if (LocalModelObject == null)
{
return;
}
PointVms.Remove(point);
LocalModelObject.RemovePoint(point.ModelObject);
InvalidateAll();
ParentVm.OnPropertyChanged("");
}
public LfDragablePointViewModel AddPoint(Point point)
{
if (LocalModelObject == null)
{
return(null);
}
LfDragablePoint np = new LfDragablePoint(GetFreeVertexIndex(), point.X, point.Y);
LfDragablePointViewModel newPoint = new LfDragablePointViewModel(this, ParentVm, MainVm, this, np);
PointVms.Add(newPoint);
LocalModelObject.AddPoint(newPoint.ModelObject);
InvalidateAll();
ParentVm.OnPropertyChanged("");
return(newPoint);
}
public LfDragablePointViewModel InsertPoint(Point insertMe, LfDragablePointViewModel insertBeforeMe)
{
if (LocalModelObject == null)
{
return(null);
}
LfDragablePoint np = new LfDragablePoint(GetFreeVertexIndex(), insertMe.X, insertMe.Y);
LfDragablePointViewModel newPoint = new LfDragablePointViewModel(this, ParentVm, MainVm, this, np);
int index = 0;
if (insertBeforeMe != null)
{
index = PointVms.IndexOf(insertBeforeMe);
}
if (index >= 0)
{
PointVms.Insert(index, newPoint);
}
if (insertBeforeMe != null)
{
LocalModelObject.InsertPoint(newPoint.ModelObject, insertBeforeMe.ModelObject);
}
else
{
LocalModelObject.InsertPoint(newPoint.ModelObject, null);
}
InvalidateAll();
ParentVm.OnPropertyChanged("");
return(newPoint);
}