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d798e477c8
Fallout from CL# 2535806 #jira UE-15170 - When in PIE, Blueprints display as disabled making them difficult to debug. [CL 2541246 by Michael Schoell in Main branch]
119 lines
3.0 KiB
C++
119 lines
3.0 KiB
C++
// Copyright 1998-2015 Epic Games, Inc. All Rights Reserved.
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#include "UnrealEd.h"
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#include "GraphEditor.h"
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#include "Editor/GraphEditor/Public/GraphEditorModule.h"
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#include "BlueprintUtilities.h"
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#include "SMissingWidget.h"
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// List of all active GraphEditor wrappers
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TArray< TWeakPtr<SGraphEditor> > SGraphEditor::AllInstances;
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void SGraphEditor::ConstructImplementation( const FArguments& InArgs )
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{
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FGraphEditorModule& GraphEdModule = FModuleManager::LoadModuleChecked<FGraphEditorModule>(TEXT("GraphEditor"));
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// Construct the implementation and make it the contents of this widget.
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Implementation = GraphEdModule.PRIVATE_MakeGraphEditor( InArgs._AdditionalCommands,
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InArgs._IsEditable,
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InArgs._DisplayAsReadOnly,
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InArgs._IsEmpty,
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InArgs._Appearance,
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InArgs._TitleBar,
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InArgs._GraphToEdit,
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InArgs._GraphEvents,
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InArgs._AutoExpandActionMenu,
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InArgs._GraphToDiff,
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InArgs._OnNavigateHistoryBack,
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InArgs._OnNavigateHistoryForward,
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InArgs._ShowGraphStateOverlay
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);
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this->ChildSlot
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[
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SNew( SBox )
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.AddMetaData<FTagMetaData>(FTagMetaData(TEXT("GraphEditorPanel")))
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[
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Implementation.ToSharedRef()
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]
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];
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}
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/**
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* Loads the GraphEditorModule and constructs a GraphEditor as a child of this widget.
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*
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* @param InArgs Declaration params from which to construct the widget.
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*/
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void SGraphEditor::Construct( const FArguments& InArgs )
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{
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EdGraphObj = InArgs._GraphToEdit;
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OnGraphModuleReloadedCallback = InArgs._OnGraphModuleReloaded;
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// Register this widget with the module so that we can gracefully handle the module being unloaded.
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// See OnModuleUnloading()
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RegisterGraphEditor( SharedThis(this) );
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// Register a graph modified handler
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if (EdGraphObj != NULL)
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{
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EdGraphObj->AddOnGraphChangedHandler( FOnGraphChanged::FDelegate::CreateSP( this, &SGraphEditor::OnGraphChanged ) );
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}
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// Make the actual GraphEditor instance
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ConstructImplementation(InArgs);
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}
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// Invoked to let this widget know that the GraphEditor module has been reloaded
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void SGraphEditor::OnModuleReloaded()
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{
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OnGraphModuleReloadedCallback.ExecuteIfBound(EdGraphObj);
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}
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// Invoked to let this widget know that the GraphEditor module is being unloaded.
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void SGraphEditor::OnModuleUnloading()
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{
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this->ChildSlot
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[
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SMissingWidget::MakeMissingWidget()
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];
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check( Implementation.IsUnique() );
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Implementation.Reset();
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}
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void SGraphEditor::RegisterGraphEditor( const TSharedRef<SGraphEditor>& InGraphEditor )
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{
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// Compact the list of GraphEditor instances
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for (int32 WidgetIndex = 0; WidgetIndex < AllInstances.Num(); ++WidgetIndex)
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{
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if (!AllInstances[WidgetIndex].IsValid())
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{
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AllInstances.RemoveAt(WidgetIndex);
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--WidgetIndex;
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}
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}
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AllInstances.Add(InGraphEditor);
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}
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void SGraphEditor::NotifyPrePropertyChange( const FString& PropertyName )
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{
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if (EdGraphObj)
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{
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EdGraphObj->NotifyPreChange(PropertyName);
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}
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}
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void SGraphEditor::NotifyPostPropertyChange( const FPropertyChangedEvent& PropertyChangedEvent, const FString& PropertyName )
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{
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if (EdGraphObj)
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{
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EdGraphObj->NotifyPostChange(PropertyChangedEvent, PropertyName);
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}
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}
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