void SAnimationOutlinerView::Construct( const FArguments& InArgs, TSharedRef<FSequencerDisplayNode> InRootNode, FSequencer* InSequencer )
{
SAnimationOutlinerViewBase::Construct( SAnimationOutlinerViewBase::FArguments(), InRootNode );
Sequencer = InSequencer;
GenerateWidgetForNode( InRootNode );
SetVisibility( TAttribute<EVisibility>( this, &SAnimationOutlinerView::GetNodeVisibility ) );
}
void SSequencerTrackArea::GenerateLayoutNodeWidgetsRecursive( const TArray< TSharedRef<FSequencerDisplayNode> >& Nodes )
{
for( int32 NodeIndex = 0; NodeIndex < Nodes.Num(); ++NodeIndex )
{
TSharedRef<FSequencerDisplayNode> Node = Nodes[NodeIndex];
// The section area encompasses multiple logical child nodes so we do not generate children that arent section areas (they would not be top level nodes in that case)
if( Node->GetType() == ESequencerNode::Track )
{
GenerateWidgetForNode( Node );
GenerateLayoutNodeWidgetsRecursive( Node->GetChildNodes() );
}
}
}
void SAnimationOutlinerView::GenerateWidgetForNode( TSharedRef<FSequencerDisplayNode>& InLayoutNode )
{
Children.Add(
SNew( SAnimationOutlinerTreeNode, InLayoutNode)
.OnSelectionChanged( this, &SAnimationOutlinerView::OnSelectionChanged )
);
// Object nodes do not generate widgets for their children
if( InLayoutNode->GetType() != ESequencerNode::Object )
{
const TArray< TSharedRef<FSequencerDisplayNode> >& ChildNodes = InLayoutNode->GetChildNodes();
for( int32 ChildIndex = 0; ChildIndex < ChildNodes.Num(); ++ChildIndex )
{
TSharedRef<FSequencerDisplayNode> ChildNode = ChildNodes[ChildIndex];
GenerateWidgetForNode( ChildNode );
}
}
}
void SSequencerTrackArea::Update( TSharedPtr<FSequencerNodeTree> InSequencerNodeTree )
{
ScrollBox->ClearChildren();
const TArray< TSharedRef<FSequencerDisplayNode> >& RootNodes = InSequencerNodeTree->GetRootNodes();
for( int32 RootNodeIndex = 0; RootNodeIndex < RootNodes.Num(); ++RootNodeIndex )
{
TSharedRef<FSequencerDisplayNode> RootNode = RootNodes[RootNodeIndex];
// Generate a widget for each root node
GenerateWidgetForNode( RootNode );
// Generate a node for each children of the root node
GenerateLayoutNodeWidgetsRecursive( RootNode->GetChildNodes() );
}
// @todo Sequencer - Remove this expensive operation
ScrollBox->SlatePrepass();
CurveEditor->SetSequencerNodeTree(InSequencerNodeTree);
}
