TSharedPtr<SWidget> SGraphPanel::OnSummonContextMenu(const FGeometry& MyGeometry, const FPointerEvent& MouseEvent)
{
//Editability is up to the user to consider for menu options
{
// If we didn't drag very far, summon a context menu.
// Figure out what's under the mouse: Node, Pin or just the Panel, and summon the context menu for that.
UEdGraphNode* NodeUnderCursor = NULL;
UEdGraphPin* PinUnderCursor = NULL;
{
FArrangedChildren ArrangedNodes(EVisibility::Visible);
this->ArrangeChildrenForContextMenuSummon(MyGeometry, ArrangedNodes);
const int32 HoveredNodeIndex = SWidget::FindChildUnderMouse( ArrangedNodes, MouseEvent );
if (HoveredNodeIndex != INDEX_NONE)
{
const FArrangedWidget& HoveredNode = ArrangedNodes[HoveredNodeIndex];
TSharedRef<SGraphNode> GraphNode = StaticCastSharedRef<SGraphNode>(HoveredNode.Widget);
TSharedPtr<SGraphNode> GraphSubNode = GraphNode->GetNodeUnderMouse(HoveredNode.Geometry, MouseEvent);
GraphNode = GraphSubNode.IsValid() ? GraphSubNode.ToSharedRef() : GraphNode;
NodeUnderCursor = GraphNode->GetNodeObj();
// Selection should switch to this code if it isn't already selected.
// When multiple nodes are selected, we do nothing, provided that the
// node for which the context menu is being created is in the selection set.
if (!SelectionManager.IsNodeSelected(GraphNode->GetObjectBeingDisplayed()))
{
SelectionManager.SelectSingleNode(GraphNode->GetObjectBeingDisplayed());
}
const TSharedPtr<SGraphPin> HoveredPin = GraphNode->GetHoveredPin( HoveredNode.Geometry, MouseEvent );
if (HoveredPin.IsValid())
{
PinUnderCursor = HoveredPin->GetPinObj();
}
}
}
const FVector2D NodeAddPosition = PanelCoordToGraphCoord( MyGeometry.AbsoluteToLocal(MouseEvent.GetScreenSpacePosition()) );
TArray<UEdGraphPin*> NoSourcePins;
return SummonContextMenu(MouseEvent.GetScreenSpacePosition(), NodeAddPosition, NodeUnderCursor, PinUnderCursor, NoSourcePins, MouseEvent.IsShiftDown());
}
return TSharedPtr<SWidget>();
}
FReply STrack::OnMouseButtonUp( const FGeometry& MyGeometry, const FPointerEvent& MouseEvent )
{
bool bLeftMouseButton = MouseEvent.GetEffectingButton() == EKeys::LeftMouseButton;
bool bRightMouseButton = MouseEvent.GetEffectingButton() == EKeys::RightMouseButton;
if ( bRightMouseButton )
{
TSharedPtr<SWidget> WidgetToFocus;
WidgetToFocus = SummonContextMenu(MyGeometry, MouseEvent);
return (WidgetToFocus.IsValid())
? FReply::Handled().ReleaseMouseCapture().SetUserFocus( WidgetToFocus.ToSharedRef(), EFocusCause::SetDirectly )
: FReply::Handled().ReleaseMouseCapture();
}
else if ( bLeftMouseButton )
{
float SnapPos = 0.f;
if ( GetDraggableBarSnapPosition(MyGeometry, SnapPos) )
{
// Final update on draggable bar to snap position
OnBarDrag.Execute(DraggableBarIndex, SnapPos);
}
if(bDraggingBar)
{
OnBarDrop.Execute(DraggableBarIndex);
OnBarClicked.ExecuteIfBound(DraggableBarIndex);
}
/** Bar dragging */
DraggableBarIndex = INDEX_NONE;
bDraggingBar = false;
}
return FReply::Unhandled();
}
