WidgetSwitcher.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
#include "UObject/ObjectMacros.h"
#include "Widgets/SWidget.h"
#include "Components/PanelWidget.h"
#include "Widgets/Layout/SWidgetSwitcher.h"
#include "WidgetSwitcher.generated.h"
 
UCLASS(MinimalAPI)
class UWidgetSwitcher : public UPanelWidget
{
    GENERATED_UCLASS_BODY()
 
public:
    UE_DEPRECATED(5.2, "Direct access to ActiveWidgetIndex is deprecated. Please use the getter or setter.")
    UPROPERTY(EditAnywhere, BlueprintReadWrite, Getter, Setter, BlueprintSetter = "SetActiveWidgetIndex", BlueprintGetter = "GetActiveWidgetIndex", FieldNotify, Category = "Switcher", meta = (UIMin = 0, ClampMin = 0))
    int32 ActiveWidgetIndex;
 
public:
 
    UFUNCTION(BlueprintCallable, Category="Switcher")
    UMG_API int32 GetNumWidgets() const;
 
    UFUNCTION(BlueprintCallable, Category="Switcher")
    UMG_API int32 GetActiveWidgetIndex() const;
 
    UFUNCTION(BlueprintCallable, Category="Switcher")
    UMG_API virtual void SetActiveWidgetIndex( int32 Index );
 
    UFUNCTION(BlueprintCallable, Category="Switcher")
    UMG_API virtual void SetActiveWidget(UWidget* Widget);
 
    UFUNCTION( BlueprintCallable, Category = "Switcher" )
    UMG_API UWidget* GetWidgetAtIndex( int32 Index ) const;
    
    UFUNCTION(BlueprintCallable, Category = "Switcher")
    UMG_API UWidget* GetActiveWidget() const;
    
    // UWidget interface
    UMG_API virtual void SynchronizeProperties() override;
    UMG_API virtual void ReleaseSlateResources(bool bReleaseChildren) override;
    // End of UWidget interface
 
#if WITH_EDITOR
    UMG_API virtual const FText GetPaletteCategory() override;
    UMG_API virtual void OnDescendantSelectedByDesigner(UWidget* DescendantWidget) override;
    UMG_API virtual void OnDescendantDeselectedByDesigner(UWidget* DescendantWidget) override;
 
    // UObject interface
    UMG_API virtual void PostEditChangeProperty(struct FPropertyChangedEvent& PropertyChangedEvent) override;
    // End of UObject interface
#endif
 
protected:
 
    // UPanelWidget
    UMG_API virtual UClass* GetSlotClass() const override;
    UMG_API virtual void OnSlotAdded(UPanelSlot* Slot) override;
    UMG_API virtual void OnSlotRemoved(UPanelSlot* Slot) override;
    // End UPanelWidget
 
    UMG_API void SetActiveWidgetIndexForSlateWidget();
protected:
 
    TSharedPtr<class SWidgetSwitcher> MyWidgetSwitcher;
 
protected:
    // UWidget interface
    UMG_API virtual TSharedRef<SWidget> RebuildWidget() override;
    // End of UWidget interface
};