void GraphContextMenu(AbstractView view, Event e)
{
AbstractNode curNode = curGraph?.GetNode(e.mousePosition);
if (curNode != null)
{
return;
}
GenericMenu menu = new GenericMenu();
menu.AddItem(new GUIContent("Create Graph"), false, delegate() {
NodePopupWindow.InitNodePopup(delegate(NodeGraph graph) { OnGraphChange?.Invoke(graph); });
});
menu.AddItem(new GUIContent("Load Graph"), false, delegate() { OnGraphChange?.Invoke(NodeUtils.LoadGraph()); });
if (curGraph != null)
{
menu.AddSeparator("");
menu.AddItem(new GUIContent("Unload Graph"), false, delegate() { OnGraphChange?.Invoke(null); });
menu.AddSeparator("");
NodeUtils.GetEnumerableOfType <AbstractNode>().ForEach(delegate(Type t) {
menu.AddItem(new GUIContent(t.Name), false, delegate() { NodeUtils.CreateNode(curGraph, t, e.mousePosition); });
});
}
menu.ShowAsContext();
e.Use();
}
void SelectSingleNode(AbstractView view, Event e)
{
// already selecting
if (isSelecting)
{
return;
}
// clear node selection unless shift is pressed
if (!e.shift)
{
curGraph.ClearNodeSelection();
}
// clicking on node?
AbstractNode node = curGraph?.GetNode(e.mousePosition);
if (node == null || node.Contains(e.mousePosition) != NodeEdge.Node)
{
return;
}
// select node
node.isSelected = true;
}
void DrawSelectionRectangle(AbstractView source, Event e)
{
if (!isSelecting)
{
return;
}
selection.size += e.delta;
}
void DragNode(AbstractView view, Event e)
{
if (curGraph?.GetNode(e.mousePosition) == null)
{
return;
}
curGraph?.DragNodes(e.delta);
}
void DeleteNode(AbstractView source, Event e)
{
if (e.keyCode != KeyCode.Delete)
{
return;
}
NodeUtils.DeleteNodes(curGraph?.GetNodeSelection());
}
void StartSelectionRectangle(AbstractView source, Event e)
{
if (curGraph?.GetNode(e.mousePosition) != null)
{
return;
}
isSelecting = true;
selection = new Rect(e.mousePosition, Vector2.zero);
}
void EndNodeConnection(AbstractView source, Event e)
{
if (!isConnecting)
{
return;
}
isConnecting = false;
// hovering over node output?
AbstractNode node = curGraph?.GetNode(e.mousePosition);
connectionSource.Target = node?.GetInput(e.mousePosition);
}
void EndSelectionRectangle(AbstractView source, Event e)
{
if (!isSelecting)
{
return;
}
isSelecting = false;
List <AbstractNode> nodes = curGraph?.GetNodes(selection);
if (!e.shift)
{
curGraph.ClearNodeSelection();
}
nodes?.ForEach(delegate(AbstractNode node) { node.isSelected = !node.isSelected; });
}
void NodeContextMenu(AbstractView view, Event e)
{
AbstractNode curNode = curGraph?.GetNode(e.mousePosition);
if (curNode == null)
{
return;
}
GenericMenu menu = new GenericMenu();
menu.AddItem(new GUIContent("Delete"), false, delegate() {
NodeUtils.DeleteNode(curNode);
});
menu.ShowAsContext();
e.Use();
}
void StartNodeConnection(AbstractView source, Event e)
{
if (isSelecting)
{
return;
}
// clicking on node input?
AbstractNode node = curGraph?.GetNode(e.mousePosition);
connectionSource = node?.GetOutput(e.mousePosition);
if (connectionSource == null)
{
return;
}
isConnecting = true;
}