void node_PropertyChanged(object sender, PropertyChangedEventArgs e)
{
PropertyInfo propInfo;
propInfo = sender.GetType().GetProperty(e.PropertyName);
if (GraphShape.IsEdge(propInfo))
{
EntityRelationGraphReset();
}
if (PropertyChanged != null)
{
PropertyChanged(sender, e);
}
}
public bool AddDataSource(IGraphDataSource graphDataSource)
{
if (graphDataProviders.Count == MaxDataSources)
{
// Maximum number of data sources has already been reached
return(false);
}
var provider = new GraphDataProvider {
DataSource = graphDataSource, IsGraphed = true
};
provider.PenData = graphDataPens.FirstOrDefault(p => !usedPens.Contains(p));
if (!(graphDataSource is IHiddenGraphDataSource))
{
this.usedPens.Add(provider.PenData);
}
this.graphDataProviders.Add(provider);
provider.DataChanged += OnProviderDataChanged;
var shape = new GraphShape {
Stroke = provider.PenData.Brush, StrokeDashCap = PenLineCap.Round, StrokeLineJoin = PenLineJoin.Round
};
shape.SetBinding(Shape.StrokeThicknessProperty, new Binding {
Source = provider, Path = new PropertyPath(GraphDataProvider.StrokeThicknessProperty)
});
shape.SetBinding(Shape.StrokeDashArrayProperty, new Binding {
Source = provider, Path = new PropertyPath(GraphDataProvider.StrokeDashArrayProperty)
});
shape.SetBinding(Shape.FillProperty, new Binding {
Source = provider, Path = new PropertyPath(GraphDataProvider.FillProperty)
});
shape.SetBinding(Panel.ZIndexProperty, new Binding {
Source = provider, Path = new PropertyPath(GraphDataProvider.ZIndexProperty)
});
this.shapeTable.Add(provider, shape);
if (this.canvas != null)
{
this.canvas.Children.Add(shape);
}
OnProviderDataChanged(provider, EventArgs.Empty);
return(true);
}
/// <summary>
/// Returns the entity graph as defined by associations that are marked with the 'EntityGraphAttribute' attribute.
/// The resulting graph consists of a list of GraphNodes. Each GraphNode has an element 'Node' of type 'T',
/// which represents the actual node, a set, SingleEdges, which correspond to EntityRefs, and a
/// a set, ListEdges, which correspond to EntityCollections.
/// </summary>
/// <param name="entity"></param>
/// <param name="graph"></param>
private void BuildEntityGraph(TEntity entity, EntityRelationGraph <TEntity> graph)
{
if (graph.Nodes.Any(n => n.Node == entity))
{
return;
}
EntityRelation <TEntity> node = new EntityRelation <TEntity>()
{
Node = entity
};
graph.Nodes.Add(node);
foreach (PropertyInfo edge in GraphShape.OutEdges(entity))
{
if (typeof(IEnumerable).IsAssignableFrom(edge.PropertyType))
{
var assocList = GraphShape.GetNodes(entity, edge);
if (assocList == null)
{
continue;
}
node.ListEdges.Add(edge, new List <TEntity>());
foreach (TEntity e in assocList)
{
if (e != null)
{
node.ListEdges[edge].Add(e);
BuildEntityGraph(e, graph);
}
}
}
else
{
TEntity e = (TEntity)GraphShape.GetNode(entity, edge);
if (e != null)
{
node.SingleEdges.Add(edge, e);
BuildEntityGraph(e, graph);
}
}
}
}
private protected void MakeContent(TreeViewItem snd)
{
var elem = (snd.GetValue(ContentProperty) as Func <object>)();
GraphElement ge = null;
if (elem is ATransformation t)
{
ge = new GraphTransform(t);
}
else if (elem is Renderable r)
{
ge = new GraphShape(r);
}
else if (elem is GraphParent gp)
{
ge = gp;
}
newElement = MakeContentSub(snd.Header as string, ge);
}
public bool AddDataSource(IGraphDataSource graphDataSource)
{
if (graphDataProviders.Count == MaxDataSources)
{
// Maximum number of data sources has already been reached
return false;
}
var provider = new GraphDataProvider { DataSource = graphDataSource, IsGraphed = true };
provider.PenData = graphDataPens.FirstOrDefault(p => !usedPens.Contains(p));
if (!(graphDataSource is IHiddenGraphDataSource))
{
this.usedPens.Add(provider.PenData);
}
this.graphDataProviders.Add(provider);
provider.DataChanged += OnProviderDataChanged;
var shape = new GraphShape { Stroke = provider.PenData.Brush, StrokeDashCap = PenLineCap.Round, StrokeLineJoin = PenLineJoin.Round };
shape.SetBinding(Shape.StrokeThicknessProperty, new Binding { Source = provider, Path = new PropertyPath(GraphDataProvider.StrokeThicknessProperty) });
shape.SetBinding(Shape.StrokeDashArrayProperty, new Binding { Source = provider, Path = new PropertyPath(GraphDataProvider.StrokeDashArrayProperty) });
shape.SetBinding(Shape.FillProperty, new Binding { Source = provider, Path = new PropertyPath(GraphDataProvider.FillProperty) });
shape.SetBinding(Panel.ZIndexProperty, new Binding { Source = provider, Path = new PropertyPath(GraphDataProvider.ZIndexProperty) });
this.shapeTable.Add(provider, shape);
if (this.canvas != null)
{
this.canvas.Children.Add(shape);
}
OnProviderDataChanged(provider, EventArgs.Empty);
return true;
}
