/// <summary>
/// Factory method to be passed to the Context Menu for creating
/// an instance of this connector class
/// </summary>
/// <param name="editor">The node editor making the connection</param>
/// <param name="nodes">Any nodes to start the connector with</param>
/// <returns></returns>
public static TransitionConnector TransitionConnectorFactory(
ZeroProgress.NodeEditor.NodeEditor editor, params Node[] nodes)
{
TransitionConnector newConnector = new TransitionConnector();
if (nodes == null)
{
return(newConnector);
}
foreach (Node node in nodes)
{
newConnector.AddNode(node);
}
return(newConnector);
}
/// <summary>
/// Perform the focusing logic
/// </summary>
private void PerformFocus()
{
IEnumerable <Node> selectedNodes = NodeEditor.GetSelectedNodes();
int count = 0;
Vector2 averagePosition = Vector2.zero;
foreach (Node node in selectedNodes)
{
averagePosition += node.NodeRect.position;
count++;
}
IEnumerable <Connector> selectedConnectors = NodeEditor.GetSelectedConnectors();
foreach (Connector connector in selectedConnectors)
{
Node startNode = connector.GetStartNode();
Node endNode = connector.GetEndNode();
averagePosition += ((startNode.NodeRect.position + endNode.NodeRect.position) * 0.5f);
count++;
}
if (count == 0)
{
foreach (Node node in NodeEditor.Nodes)
{
averagePosition += node.NodeRect.position;
count++;
}
}
if (count == 0)
{
NodeEditor.SetPanOffset(Vector2.zero);
return;
}
Vector2 offset = NodeEditor.NodeEditorRect.size * 0.5f;
NodeEditor.SetPanOffset((-averagePosition / count) + offset);
}
/// <summary>
/// Configures the rectangle used for selection
/// </summary>
public override void AfterEditorEvents()
{
CheckActivation();
if (!IsActivated)
{
return;
}
if (Event.current.button != 0)
{
Cancel();
Event.current.Use();
return;
}
if (Event.current.type == EventType.MouseDrag)
{
Vector2 startPoint = NodeEditor.ApplyZoomToVector(dragStartPos);
Vector2 endPoint = NodeEditor.GetZoomedMousePosition();
selectionRect = RectExtensions.FromPoints(startPoint, endPoint);
NodeEditor.FlagRepaint();
Event.current.Use();
}
else if (Event.current.type == EventType.MouseUp)
{
SelectNodes();
SelectConnectors();
NodeEditor.RaiseSelectionChanged();
selectionRect = Rect.zero;
Deactivate();
Event.current.Use();
}
else if (Event.current.type == EventType.MouseLeaveWindow)
{
Cancel();
}
}
/// <summary>
/// Executes after the node editor has processed its events
/// </summary>
public override void AfterEditorEvents()
{
CheckActivation();
if (!IsActivated)
{
return;
}
if (Event.current.type != EventType.KeyDown)
{
return;
}
if (Event.current.keyCode == KeyCode.Escape)
{
NodeEditor.CancelInputModes();
NodeEditor.UnselectAll();
}
}
/// <summary>
/// Check if delete key is pressed
/// </summary>
public override void BeforeEditorEvents()
{
CheckActivation();
if (!IsActivated)
{
return;
}
if (Event.current.type != EventType.KeyDown)
{
return;
}
if (Event.current.keyCode == KeyCode.Delete)
{
NodeEditor.RemoveSelectedNodes();
NodeEditor.RemoveSelectedConnectors();
Event.current.Use();
}
}
/// <summary>
/// Creates a Connector object
/// </summary>
/// <param name="startNode">The starting node that the connector was opened on</param>
/// <returns>An empty Connector</returns>
public static Connector DefaultConnectorFactoryFunction(NodeEditor editor, params Node[] nodes)
{
return(new Connector(nodes));
}
/// <summary>
/// Handles any non-repaint/layout events
/// </summary>
/// <param name="nodeEditor">The editor to work with</param>
/// <param name="nodeOffset">The offset of the node</param>
/// <returns>True if require repaint, false if not</returns>
public virtual bool HandleEvents(NodeEditor nodeEditor, Vector2 nodeOffset)
{
return(false);
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="nodeEditor">Node editor to work on</param>
/// <param name="priority">When this mode should be processed relative
/// to other input modes. Lower number == processed first</param>
public ConnectorSelectMode(NodeEditor nodeEditor, int priority = 0)
: base(nodeEditor, priority)
{
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="nodeEditor">Node editor to work on</param>
/// <param name="priority">When this mode should be processed relative
/// to other input modes. Lower number == processed first</param>
public SelectedNodeDragMode(NodeEditor nodeEditor, int priority = 0)
: base(nodeEditor, priority)
{
}
/// <summary>
/// Activates if a selected node was clicked and if
/// there are currently nodes selected
/// </summary>
/// <returns></returns>
protected override bool ShouldActivate()
{
return(NodeEditor.GetSelectedNodesCount() > 0 && wasMouseDownInSelectedNode);
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="nodeEditor">Node editor to work on</param>
/// <param name="priority">When this mode should be processed relative
/// to other input modes. Lower number == processed first</param>
public CancelAll(NodeEditor nodeEditor, int priority = 0)
: base(nodeEditor, priority)
{
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="nodeEditor">Node editor to work on</param>
/// <param name="priority">When this mode should be processed relative
/// to other input modes. Lower number == processed first</param>
public ConnectNodeInputMode(NodeEditor nodeEditor, int priority = 0)
: base(nodeEditor, priority)
{
ConnectionLogic = ConnectionStyle.MULTIPLE;
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="nodeEditor">Node editor to work on</param>
/// <param name="priority">When this mode should be processed relative
/// to other input modes. Lower number == processed first</param>
public FocusInput(NodeEditor nodeEditor, int priority = 2)
: base(nodeEditor, priority)
{
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="nodeEditor">Node editor to work on</param>
/// <param name="priority">When this mode should be processed relative
/// to other input modes. Lower number == processed first</param>
public BackgroundClickedUnselector(NodeEditor nodeEditor, int priority = 10)
: base(nodeEditor, priority)
{
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="nodeEditor">Node editor to work on</param>
/// <param name="priority">When this mode should be processed relative
/// to other input modes. Lower number == processed first</param>
public DeleteKeyInput(NodeEditor nodeEditor, int priority = 0)
: base(nodeEditor, priority)
{
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="nodeEditor">Node editor to work on</param>
/// <param name="priority">When this mode should be processed relative
/// to other input modes. Lower number == processed first</param>
public ConnectorMakerMode(NodeEditor nodeEditor, int priority = 0)
: base(nodeEditor, priority)
{
}
/// <summary>
/// Handles re-configuring the Node Editor to its original state
/// </summary>
protected override void OnDeactivated()
{
NodeEditor.EnableZoom();
selectionRect = Rect.zero;
}
/// <summary>
/// Handles cancelling box select mode
/// </summary>
protected override void OnCancelled()
{
NodeEditor.UnselectAll();
NodeEditor.RaiseSelectionChanged();
}
/// <summary>
/// Handles configuring the node editor for box select mode activation
/// </summary>
protected override void OnActivated()
{
dragStartPos = Event.current.mousePosition;
NodeEditor.DisableZoom();
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="nodeEditor">Node editor to work on</param>
/// <param name="priority">When this mode should be processed relative
/// to other input modes. Lower number == processed first</param>
public BoxSelectMode(NodeEditor nodeEditor, int priority = 0) : base(nodeEditor, priority)
{
CanSelectConnectors = CanSelectNodes = true;
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="nodeEditor">Node editor to work on</param>
/// <param name="priority">When this mode should be processed relative
/// to other input modes. Lower number == processed first</param>
public SelectAllNodesMode(NodeEditor nodeEditor, int priority = 0)
: base(nodeEditor, priority)
{
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="nodeEditor">Node editor to work on</param>
/// <param name="priority">When this mode should be processed relative
/// to other input modes. Lower number == processed first</param>
public NodeRightClickMode(NodeEditor nodeEditor, int priority = 0)
: base(nodeEditor, priority)
{
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="nodeEditor">The node editor this input mode works on</param>
/// <param name="priority">Priority of the input mode</param>
public ContextMenuInput(NodeEditor nodeEditor, int priority = 0)
: base(nodeEditor, priority)
{
}