public GraphView(GraphViewWindow window, Graph graph)
{
Graph = graph;
_window = window;
_nodeProvider = ScriptableObject.CreateInstance <GraphViewNodeProvider>();
_nodeConnector = new GraphViewConnector(_nodeProvider);
_inputs = this.Query <GraphViewInputPort>().Build();
_outputs = this.Query <GraphViewOutputPort>().Build();
AddToClassList(UssClassName);
SetupZoom(ContentZoomer.DefaultMinScale, ContentZoomer.DefaultMaxScale);
SetupNodeProvider();
SetupNodes();
SetupConnections();
RegisterCallback <KeyDownEvent>(OnKeyDown);
RegisterCallback <GeometryChangedEvent>(evt => ShowAll()); // Use this event because the layout isn't build right away so ShowAll won't work immediately
nodeCreationRequest = OnShowCreateNode;
graphViewChanged = OnGraphChanged;
canPasteSerializedData = data => canPaste;
serializeGraphElements = OnCopy;
unserializeAndPaste = OnPaste;
this.AddManipulator(new ContentDragger());
this.AddManipulator(new SelectionDragger());
this.AddManipulator(new RectangleSelector());
this.AddManipulator(new ClickSelector());
Undo.undoRedoPerformed += Rebuild;
EditorApplication.playModeStateChanged += PlayStateChanged;
if (Application.isPlaying) // Make sure the callback still gets set if the window was opened during play mode
{
PlayStateChanged(PlayModeStateChange.EnteredPlayMode);
FrameChanged(null);
}
}
public GraphViewConnector(GraphViewNodeProvider provider)
{
_provider = provider;
_graphViewChange.edgesToCreate = new List <Edge>();
_graphViewChange.elementsToRemove = new List <GraphElement>();
}