protected override void OnDrop(DragEventArgs e)
{
if (SelectionCount > 1)
{
return;
}
base.OnDrop(e);
if (e.Data.GetData("shape") is GraphShape _shape)
{
Point _p = e.GetPosition(this);
GraphShape _newShape = graphControl.ToDragAndDrop;
Point _point = AddShapeOnGraph(_newShape, _p.X, _p.Y);
_shape.TypeInfo.LeftPosition = _p.X;
_shape.TypeInfo.TopPosition = _p.Y;
Project.AddShape(_shape.TypeInfo);
if (SelectedItem != null && SelectedItem is GraphShape _current)
{
Connect(_current, _newShape);
_current.LinkTo(_newShape);
}
SelectedItem = _newShape;
}
}
/// <summary>
/// Retire la ShapeTypeInfo de _shape du GraphProject.
/// Suprime physiquement la shape du graph, ainsi que ses connections entrantes (lignes),
/// appèle _shape.LinkedBy.TypeInfo.Remove(_shape.TypeInfo),
/// puis suprime en cascade les shapes qui lui sont liées en connection sortantes.
/// </summary>
private void RemoveShapeFromGraph(GraphShape _shape)
{
if (_shape != null)
{
Project.ShapeInfos.Remove(_shape.TypeInfo);
List <RadDiagramConnection> _connectionsToRemove = new List <RadDiagramConnection>();
foreach (RadDiagramConnection _connection in _shape.IncomingLinks)
{
_connectionsToRemove.Add(_connection);
}
foreach (RadDiagramConnection _connection in _connectionsToRemove)
{
RemoveConnection(_connection);
}
SelectedItem = _shape;
Delete();
//
if (_shape.LinkedBy != null)
{
_shape.LinkedBy.Remove(_shape.TypeInfo);
}
//
// supression en cascade des shapes liée en connection sortante
ShapeTypeInfo[] _accepteds = _shape.TypeInfo.AcceptedShapes.ToArray();
foreach (ShapeTypeInfo _typeInfo in _accepteds)
{
RemoveShapeFromGraph(Shape(_typeInfo));
}
}
graphControl.CurrentShape = null;
}
protected override void OnDeleteCommandExecutedOverride(object sender, ExecutedRoutedEventArgs e)
{
GraphShape _selected = SelectedItem as GraphShape;
RemoveShapeFromGraph(_selected);
base.OnDeleteCommandExecutedOverride(sender, e);
}
/// <summary>
/// Ajoute une GraphShape sur le graph à la position indiquée par _left, _top.
/// </summary>
public Point AddShapeOnGraph(GraphShape _shape, double _left, double _top)
{
double _zoom = Zoom;
_left = (_left + Viewport.Left);
_top = (_top + Viewport.Top);
AddShape(_shape, new Point(_left, _top));
_shape.TypeInfo.IsOnGraph = true;
return(new Point(_left, _top));
}
private void Connect(GraphShape _source, GraphShape _target)
{
RadDiagramConnection _connection = new RadDiagramConnection();
_connection.AllowDelete = false;
_connection.AllowCut = false;
_connection.AllowCopy = false;
_connection.ConnectionType = Telerik.Windows.Diagrams.Core.ConnectionType.Bezier;
_connection.Source = _source;
_connection.Target = _target;
AddConnection(_connection);
}
private void SetShapesOnLayoutReusables()
{
__layoutReusableShapes.Clear();
__layoutReusableShapes.MaxWidth = 150;
foreach (ShapeTypeInfo _type in ReusableShapesTypeInfos())
{
GraphShape _shape = new GraphShape(_type);
_shape.Height = _type.Height + 10;
if (_type.Width + 10 > __layoutReusableShapes.MaxWidth)
{
__layoutReusableShapes.MaxWidth = _type.Width + 10;
}
__layoutReusableShapes.Add(_shape);
}
}
protected override void OnPreviewMouseLeftButtonDown(MouseButtonEventArgs e)
{
base.OnPreviewMouseLeftButtonDown(e);
__oldMousePos = e.GetPosition(null);
ToDragAndDrop = ShapeUnderMouse();
if (ToDragAndDrop != null)
{
GraphShape _new = __typesDescription.ShapeFactory(ToDragAndDrop.TypeInfo.TypeName);
if (ToDragAndDrop.TypeInfo.IsOnGraph == true)
{
_new.TypeInfo.EditableComponents.Clear();
foreach (Base _component in ToDragAndDrop.TypeInfo.EditableComponents)
{
_new.TypeInfo.AddEditableComponent(_component);
}
}
ToDragAndDrop = _new;
}
}
private void SetShapesOnLayoutShapes()
{
List <string> _types = null;
if (__graph.Shapes.Count == 0)
{
_types = new List <string>()
{
__typesDescription.RootType().TypeName
}
}
;
else
{
_types = __currentShape?.TypeInfo.CanAcceptList();
}
__layoutShapes.Clear();
__layoutShapes.MaxWidth = 150;
if (_types == null)
{
return;
}
foreach (string _type in _types)
{
GraphShape _shape = __typesDescription.ShapeFactory(_type);
_shape.Height = _shape.TypeInfo.Height + 10;
if (_shape.TypeInfo.Width + 10 > __layoutShapes.MaxWidth)
{
__layoutShapes.MaxWidth = _shape.TypeInfo.Width + 10;
}
__layoutShapes.Add(_shape);
}
}
public void LinkTo(GraphShape _shape)
{
TypeInfo.Accept(_shape.TypeInfo);
_shape.LinkedBy = this.TypeInfo;
}