public void StackNodeContainsAddedElements()
{
// Create a stack
StackNode stack = CreateFilteredStackNode(k_DefaultX, k_DefaultY);
Node footer;
// Verify that nodes are properly added to the stack
stack.AddElement(m_Node1);
stack.AddElement(m_Node2);
stack.InsertElement(0, m_Node3);
stack.InsertElement(0, footer = new FooterNode());
Assert.AreEqual(4, stack.childCount);
Assert.AreEqual(stack, m_Node1.parent);
Assert.AreEqual(stack, m_Node2.parent);
Assert.AreEqual(stack, m_Node3.parent);
Assert.AreEqual(stack, footer.parent);
Assert.AreEqual(0, stack.IndexOf(m_Node3));
// Verify that the footer is added at the end of the stack even though we tried to insert it at the begining
Assert.AreEqual(stack.childCount - 1, stack.IndexOf(footer));
}
public IEnumerator DragAddSelectionToStackNode()
{
// Create a stack
StackNode stack = CreateStackNode(k_DefaultX, k_DefaultY);
// Allow two frames to compute the layout of the stack and nodes
yield return(null);
yield return(null);
// Select node1
m_Node1.Select(graphView, false);
Vector2 start = m_Node1.worldBound.center;
Vector2 centerOfStack = stack.LocalToWorld(stack.GetRect().center); // Center of the stack
// Drag node1 onto the stack
helpers.DragTo(start, centerOfStack);
// Verify that node1 has been added to stack
Assert.AreEqual(1, stack.childCount);
Assert.AreEqual(stack, m_Node1.parent);
// Allow one frame to compute the layout of the stack
yield return(null);
// Select node2
m_Node2.Select(graphView, false);
start = m_Node2.worldBound.center;
Vector2 centerOfNode1 = m_Node1.worldBound.center; // Center of Node1
// Drag node2 onto the stack at the position of node1
helpers.DragTo(start, centerOfNode1);
// Verify that node2 has been added to the stack at the previous index of node1
Assert.AreEqual(2, stack.childCount);
Assert.AreEqual(stack, m_Node2.parent);
Assert.AreEqual(0, stack.IndexOf(m_Node2));
}
public IEnumerator DragReorderSelectionInStackNode()
{
// Creates a stack and add node1, node2, node3
StackNode stack = CreateStackNode(k_DefaultX, k_DefaultY);
stack.AddElement(m_Node1);
stack.AddElement(m_Node2);
stack.AddElement(m_Node3);
// Allow two frames to compute the layout of the stack and nodes
yield return(null);
yield return(null);
// Select node1
m_Node1.Select(graphView, false);
Vector2 start = m_Node1.worldBound.center;
Vector2 outsideStackNode = stack.LocalToWorld(k_OutsidePosition);
// Drag node1 away from the stack
helpers.MouseDownEvent(start, MouseButton.LeftMouse);
helpers.MouseDragEvent(start, outsideStackNode, MouseButton.LeftMouse);
// Allow one frame to compute the layout of the stack
yield return(null);
Vector2 centerOfNode3 = m_Node3.worldBound.center;
helpers.MouseDragEvent(outsideStackNode, centerOfNode3, MouseButton.LeftMouse);
helpers.MouseUpEvent(centerOfNode3);
// Verify that node1 has been moved to index 1 (before node3)
Assert.AreEqual(3, stack.childCount);
Assert.AreEqual(1, stack.IndexOf(m_Node1));
}
protected new void OnMouseDown(MouseDownEvent e)
{
if (m_Active)
{
e.StopImmediatePropagation();
return;
}
if (CanStartManipulation(e))
{
m_GraphView = target as GraphView;
if (m_GraphView == null)
{
return;
}
selectedElement = null;
// avoid starting a manipulation on a non movable object
clickedElement = e.target as GraphElement;
if (clickedElement == null)
{
var ve = e.target as VisualElement;
clickedElement = ve.GetFirstAncestorOfType <GraphElement>();
if (clickedElement == null)
{
return;
}
}
// Only start manipulating if the clicked element is movable, selected and that the mouse is in its clickable region (it must be deselected otherwise).
if (!clickedElement.IsMovable() || !clickedElement.HitTest(clickedElement.WorldToLocal(e.mousePosition)))
{
return;
}
// If we hit this, this likely because the element has just been unselected
// It is important for this manipulator to receive the event so the previous one did not stop it
// but we shouldn't let it propagate to other manipulators to avoid a re-selection
if (!m_GraphView.selection.Contains(clickedElement))
{
e.StopImmediatePropagation();
return;
}
selectedElement = clickedElement;
m_OriginalPos = new Dictionary <GraphElement, OriginalPos>();
HashSet <GraphElement> elementsToMove = new HashSet <GraphElement>(m_GraphView.selection.OfType <GraphElement>());
// var selectedPlacemats = new HashSet<Placemat>(elementsToMove.OfType<Placemat>());
// foreach (var placemat in selectedPlacemats)
// placemat.GetElementsToMove(e.shiftKey, elementsToMove);
foreach (GraphElement ce in elementsToMove)
{
if (ce == null || !ce.IsMovable())
{
continue;
}
StackNode stackNode = null;
if (ce.parent is StackNode)
{
stackNode = ce.parent as StackNode;
if (stackNode.IsSelected(m_GraphView))
{
continue;
}
}
Rect geometry = ce.GetPosition();
//geometry.width = 0;//For the right node aligment
Rect geometryInContentViewSpace = ce.hierarchy.parent.ChangeCoordinatesTo(m_GraphView.contentViewContainer, geometry);
m_OriginalPos[ce] = new OriginalPos {
pos = geometryInContentViewSpace,
scope = ce.GetContainingScope(),
stack = stackNode,
stackIndex = stackNode != null?stackNode.IndexOf(ce) : -1
};
}
m_originalMouse = e.mousePosition;
m_ItemPanDiff = Vector3.zero;
if (m_PanSchedule == null)
{
m_PanSchedule = m_GraphView.schedule.Execute(Pan).Every(k_PanInterval).StartingIn(k_PanInterval);
m_PanSchedule.Pause();
}
m_Snapper.BeginSnap(selectedElement);
m_Active = true;
target.CaptureMouse(); // We want to receive events even when mouse is not over ourself.
e.StopImmediatePropagation();
}
}