private GraphicInstance CreateGraphicVisualizedInstance(Type type, LogicalInstance logicalInstance, DragEventArgs args)
{
Point position = args.GetPosition(this);
double width = (double)type.GetProperty("Width").GetValue(Activator.CreateInstance(type), null);
double height = (double)type.GetProperty("Height").GetValue(Activator.CreateInstance(type), null);
GraphicInstance graphicInstance = null;
if (type.IsSubclassOf(typeof(NodeType)))
{
ParentableInstance parent = (this.Content as CanvasItemsControl).FindParent(position, graphicInstance);
graphicInstance = new NodeInstance
{
X = position.X,
Y = position.Y,
Width = (width != 0 && !double.IsNaN(width)) ? width : 200,
Height = (height != 0 && !double.IsNaN(height)) ? height : 200,
LogicalInstance = logicalInstance,
Parent = parent
};
}
else
{
graphicInstance = new EdgeInstance
{
X = position.X,
Y = position.Y,
Width = (width != 0 && !double.IsNaN(width)) ? width : 200,
Height = (height != 0 && !double.IsNaN(height)) ? height : 200,
LogicalInstance = logicalInstance,
Parent = InstancesManager.Instance.CanvasRootElement
};
}
return(graphicInstance);
}
private void AddNodeChildren(ParentableInstance parentableInstance)
{
foreach (var entity in parentableInstance.NodeChildren)
{
CanvasInstancesSource.Add(entity);
AddNodeChildren(entity);
}
}
private void ObjectTypeMouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
GraphicInstance dataContext = (sender as ObjectType).DataContext as GraphicInstance;
if (dataContext is NodeInstance)
{
Point position = e.GetPosition(this);
ParentableInstance parent = FindParent(position, dataContext);
((sender as ObjectType).DataContext as NodeInstance).Parent = parent;
if (parent is NodeInstance)
{
Point positionInParent = new Point((dataContext as NodeInstance).X - (parent as NodeInstance).X,
(dataContext as NodeInstance).Y - (parent as NodeInstance).Y);
(parent as NodeInstance).Width = Math.Max(positionInParent.X + (dataContext as NodeInstance).Width + 5, (parent as NodeInstance).Width);
(parent as NodeInstance).Height = Math.Max(positionInParent.Y + (dataContext as NodeInstance).Height + 5, (parent as NodeInstance).Height);
}
}
}
