SHierarchyView::~SHierarchyView()
{
UWidgetBlueprint* Blueprint = GetBlueprint();
if ( Blueprint )
{
Blueprint->OnChanged().RemoveAll(this);
Blueprint->OnCompiled().RemoveAll(this);
}
if ( BlueprintEditor.IsValid() )
{
BlueprintEditor.Pin()->OnSelectedWidgetsChanged.RemoveAll(this);
}
GEditor->OnObjectsReplaced().RemoveAll(this);
}
FWidgetBlueprintEditor::~FWidgetBlueprintEditor()
{
UWidgetBlueprint* Blueprint = GetWidgetBlueprintObj();
if ( Blueprint )
{
Blueprint->OnChanged().RemoveAll(this);
Blueprint->OnCompiled().RemoveAll(this);
}
GEditor->OnObjectsReplaced().RemoveAll(this);
Sequencer.Reset();
SequencerObjectBindingManager.Reset();
// Un-Register sequencer menu extenders.
ISequencerModule& SequencerModule = FModuleManager::Get().LoadModuleChecked<ISequencerModule>("Sequencer");
SequencerModule.GetMenuExtensibilityManager()->GetExtenderDelegates().RemoveAll([this]( const FAssetEditorExtender& Extender )
{
return SequencerExtenderHandle == Extender.GetHandle();
});
}
void SHierarchyView::Construct(const FArguments& InArgs, TSharedPtr<FWidgetBlueprintEditor> InBlueprintEditor, USimpleConstructionScript* InSCS)
{
BlueprintEditor = InBlueprintEditor;
bRebuildTreeRequested = false;
bIsUpdatingSelection = false;
// register for any objects replaced
GEditor->OnObjectsReplaced().AddRaw(this, &SHierarchyView::OnObjectsReplaced);
// Create the filter for searching in the tree
SearchBoxWidgetFilter = MakeShareable(new WidgetTextFilter(WidgetTextFilter::FItemToStringArray::CreateSP(this, &SHierarchyView::TransformWidgetToString)));
UWidgetBlueprint* Blueprint = GetBlueprint();
Blueprint->OnChanged().AddRaw(this, &SHierarchyView::OnBlueprintChanged);
Blueprint->OnCompiled().AddRaw(this, &SHierarchyView::OnBlueprintChanged);
FilterHandler = MakeShareable(new TreeFilterHandler< TSharedPtr<FHierarchyModel> >());
FilterHandler->SetFilter(SearchBoxWidgetFilter.Get());
FilterHandler->SetRootItems(&RootWidgets, &TreeRootWidgets);
FilterHandler->SetGetChildrenDelegate(TreeFilterHandler< TSharedPtr<FHierarchyModel> >::FOnGetChildren::CreateRaw(this, &SHierarchyView::WidgetHierarchy_OnGetChildren));
CommandList = MakeShareable(new FUICommandList);
CommandList->MapAction(
FGenericCommands::Get().Rename,
FExecuteAction::CreateSP(this, &SHierarchyView::BeginRename),
FCanExecuteAction::CreateSP(this, &SHierarchyView::CanRename)
);
ChildSlot
[
SNew(SBorder)
.BorderImage(FEditorStyle::GetBrush("ToolPanel.GroupBorder"))
[
SNew(SVerticalBox)
+ SVerticalBox::Slot()
.Padding(4)
.AutoHeight()
[
SNew(SSearchBox)
.HintText(LOCTEXT("SearchWidgets", "Search Widgets"))
.OnTextChanged(this, &SHierarchyView::OnSearchChanged)
]
+ SVerticalBox::Slot()
.FillHeight(1.0f)
[
SAssignNew(TreeViewArea, SBorder)
.Padding(0)
.BorderImage( FEditorStyle::GetBrush( "NoBrush" ) )
]
]
];
RebuildTreeView();
BlueprintEditor.Pin()->OnSelectedWidgetsChanged.AddRaw(this, &SHierarchyView::OnEditorSelectionChanged);
bRefreshRequested = true;
}
