Visibility.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "Containers/EnumAsByte.h"
#include "Containers/UnrealString.h"
#include "CoreMinimal.h"
#include "HAL/Platform.h"
 
struct EVisibility
{
    static SLATECORE_API const EVisibility Visible;
 
    static SLATECORE_API const EVisibility Collapsed;
 
    static SLATECORE_API const EVisibility Hidden;
 
    static SLATECORE_API const EVisibility HitTestInvisible;
 
    static SLATECORE_API const EVisibility SelfHitTestInvisible;
 
    static SLATECORE_API const EVisibility All;
 
public:
 
    EVisibility( )
        : Value(VIS_Visible)
    { }
 
public:
 
    bool operator==( const EVisibility& Other ) const
    {
        return this->Value == Other.Value;
    }
 
    bool operator!=( const EVisibility& Other ) const
    {
        return this->Value != Other.Value;
    }
 
public:
 
    bool AreChildrenHitTestVisible( ) const
    {
        return 0 != (Value & VISPRIVATE_ChildrenHitTestVisible);
    }
 
    bool IsHitTestVisible( ) const
    {
        return 0 != (Value & VISPRIVATE_SelfHitTestVisible);
    }
 
    bool IsVisible() const
    {
        return 0 != (Value & VIS_Visible);
    }
 
    static inline bool DoesVisibilityPassFilter(const EVisibility InVisibility, const EVisibility InVisibilityFilter)
    {
        return 0 != (InVisibility.Value & InVisibilityFilter.Value);
    }
 
    SLATECORE_API FString ToString() const;
 
private:
 
    enum Private
    {
        VISPRIVATE_Visible = 0x1 << 0,
        VISPRIVATE_Collapsed = 0x1 << 1,
        VISPRIVATE_Hidden = 0x1 << 2,
        VISPRIVATE_SelfHitTestVisible = 0x1 << 3,
        VISPRIVATE_ChildrenHitTestVisible = 0x1 << 4,
 
 
        VIS_Visible = VISPRIVATE_Visible | VISPRIVATE_SelfHitTestVisible | VISPRIVATE_ChildrenHitTestVisible,
        VIS_Collapsed = VISPRIVATE_Collapsed,
        VIS_Hidden = VISPRIVATE_Hidden,
        VIS_HitTestInvisible = VISPRIVATE_Visible,
        VIS_SelfHitTestInvisible = VISPRIVATE_Visible | VISPRIVATE_ChildrenHitTestVisible,
 
 
        VIS_All = VISPRIVATE_Visible | VISPRIVATE_Hidden | VISPRIVATE_Collapsed | VISPRIVATE_SelfHitTestVisible | VISPRIVATE_ChildrenHitTestVisible
    };
 
    EVisibility( Private InValue )
        : Value(InValue)
    { }
 
public:
 
    TEnumAsByte<Private> Value;
};