// Copyright Epic Games, Inc. All Rights Reserved.

#include "LevelEditorPlaySettingsCustomization.h"

#include "Misc/Attribute.h"
#include "Layout/Margin.h"
#include "Layout/Visibility.h"
#include "Widgets/DeclarativeSyntaxSupport.h"
#include "Widgets/SWidget.h"
#include "Widgets/SCompoundWidget.h"
#include "Widgets/SBoxPanel.h"
#include "Editor.h"
#include "Textures/SlateIcon.h"
#include "Framework/Commands/UIAction.h"
#include "PropertyHandle.h"
#include "DetailLayoutBuilder.h"
#include "DetailCategoryBuilder.h"
#include "Framework/MultiBox/MultiBoxBuilder.h"
#include "Widgets/Text/STextBlock.h"
#include "Widgets/Images/SImage.h"
#include "Widgets/Input/SButton.h"
#include "Widgets/Input/SComboButton.h"
#include "IDetailPropertyRow.h"
#include "DetailWidgetRow.h"
#include "Widgets/Input/SComboBox.h"
#include "Runtime/Engine/Classes/Sound/AudioSettings.h"
#include "DeviceProfiles/DeviceProfileManager.h"
#include "DeviceProfiles/DeviceProfile.h"
#include "ToolMenus.h"

#define LOCTEXT_NAMESPACE "FLevelEditorPlaySettingsCustomization"

void SScreenPositionCustomization::Construct(const FArguments& InArgs, IDetailLayoutBuilder* LayoutBuilder, const TSharedRef<IPropertyHandle>& InWindowPositionProperty, const TSharedRef<IPropertyHandle>& InCenterWindowProperty)
{
    check(LayoutBuilder != NULL);

    CenterWindowProperty = InCenterWindowProperty;

    ChildSlot
        [SNew(SVerticalBox) + SVerticalBox::Slot().AutoHeight()[SNew(SHorizontalBox) + SHorizontalBox::Slot()[SNew(SVerticalBox).IsEnabled(this, &SScreenPositionCustomization::HandleNewWindowPositionPropertyIsEnabled) + SVerticalBox::Slot().AutoHeight()[InWindowPositionProperty->CreatePropertyNameWidget(LOCTEXT("WindowPosXLabel", "Left Position"))] + SVerticalBox::Slot().AutoHeight()[InWindowPositionProperty->GetChildHandle(0)->CreatePropertyValueWidget()]]

                                                                + SHorizontalBox::Slot().Padding(8.0f, 0.0f, 0.0f, 0.0f)[SNew(SVerticalBox).IsEnabled(this, &SScreenPositionCustomization::HandleNewWindowPositionPropertyIsEnabled)

                                                                                                                         + SVerticalBox::Slot().AutoHeight()[InWindowPositionProperty->CreatePropertyNameWidget(LOCTEXT("TopPositionLabel", "Top Position"))]

                                                                                                                         + SVerticalBox::Slot().AutoHeight()[InWindowPositionProperty->GetChildHandle(1)->CreatePropertyValueWidget()]]] +
         SVerticalBox::Slot()
             .Padding(0.0f, 2.0f)
             .AutoHeight()
                 [SNew(SHorizontalBox) + SHorizontalBox::Slot().VAlign(VAlign_Center).AutoWidth()[InCenterWindowProperty->CreatePropertyValueWidget()] + SHorizontalBox::Slot().AutoWidth().Padding(4.0f, 0.0f, 0.0f, 0.0f).VAlign(VAlign_Bottom)[InWindowPositionProperty->CreatePropertyNameWidget(LOCTEXT("CenterWindowLabel", "Always center first viewport window to screen"))]]];
}

bool SScreenPositionCustomization::HandleNewWindowPositionPropertyIsEnabled() const
{
    bool CenterNewWindow;
    CenterWindowProperty->GetValue(CenterNewWindow);
    return !CenterNewWindow;
}

void SScreenResolutionCustomization::Construct(const FArguments& InArgs, IDetailLayoutBuilder* LayoutBuilder, const TSharedRef<IPropertyHandle>& InWindowHeightProperty, const TSharedRef<IPropertyHandle>& InWindowWidthProperty)
{
    check(LayoutBuilder != NULL);

    WindowHeightProperty               = InWindowHeightProperty;
    WindowWidthProperty                = InWindowWidthProperty;

    FSimpleDelegate SizeChangeDelegate = FSimpleDelegate::CreateSP(this, &SScreenResolutionCustomization::OnSizeChanged);
    WindowHeightProperty->SetOnPropertyValueChanged(SizeChangeDelegate);
    WindowWidthProperty->SetOnPropertyValueChanged(SizeChangeDelegate);

    ChildSlot
        [SNew(SVerticalBox) + SVerticalBox::Slot().VAlign(VAlign_Bottom)[SNew(SHorizontalBox) + SHorizontalBox::Slot().AutoWidth().VAlign(VAlign_Center)[SNew(SComboButton).VAlign(VAlign_Center).ButtonContent()[SNew(STextBlock).Font(LayoutBuilder->GetDetailFont()).Text(LOCTEXT("CommonResolutionsButtonText", "Common Resolutions"))].ContentPadding(FMargin(6, 2)).OnGetMenuContent(this, &SScreenResolutionCustomization::GetResolutionsMenu).ToolTipText(LOCTEXT("CommonResolutionsButtonTooltip", "Pick from a list of common screen resolutions"))] + SHorizontalBox::Slot().Padding(0, 0, 6, 0).AutoWidth().VAlign(VAlign_Center)[SNew(SButton).OnClicked(this, &SScreenResolutionCustomization::HandleSwapAspectRatioClicked).ContentPadding(FMargin(3, 0, 3, 1)).Content()[SNew(SImage).Image(this, &SScreenResolutionCustomization::GetAspectRatioSwitchImage)].ToolTipText(LOCTEXT("SwapAspectRatioTooltip", "Swap between portrait and landscape orientation."))]] + SVerticalBox::Slot().AutoHeight()[SNew(SHorizontalBox) + SHorizontalBox::Slot()[SNew(SVerticalBox) + SVerticalBox::Slot().AutoHeight()[WindowWidthProperty->CreatePropertyNameWidget(LOCTEXT("ViewportWidthLabel", "Viewport Width"))] + SVerticalBox::Slot()[WindowWidthProperty->CreatePropertyValueWidget()]] + SHorizontalBox::Slot().Padding(8, 0, 0, 0)[SNew(SVerticalBox) + SVerticalBox::Slot().AutoHeight()[WindowHeightProperty->CreatePropertyNameWidget(LOCTEXT("ViewportHeightLabel", "Viewport Height"))] + SVerticalBox::Slot().AutoHeight()[WindowHeightProperty->CreatePropertyValueWidget()]]]];
}

FReply SScreenResolutionCustomization::HandleSwapAspectRatioClicked()
{
    FString HeightString;
    WindowHeightProperty->GetValueAsDisplayString(HeightString);
    FString WidthString;
    WindowWidthProperty->GetValueAsDisplayString(WidthString);
    int32 NewHeight                          = FCString::Atoi(*WidthString);
    int32 NewWidth                           = FCString::Atoi(*HeightString);

    ULevelEditorPlaySettings* PlayInSettings = GetMutableDefault<ULevelEditorPlaySettings>();

    const UDeviceProfile* DeviceProfile      = UDeviceProfileManager::Get().FindProfile(PlayInSettings->DeviceToEmulate, false);
    if (DeviceProfile)
    {
        // Rescale the swapped sizes if we are on Android
        if (DeviceProfile && DeviceProfile->DeviceType == TEXT("Android"))
        {
            float ScaleFactor = 1.0f;
            PlayInSettings->RescaleForMobilePreview(DeviceProfile, NewWidth, NewHeight, ScaleFactor);
        }
    }

    WindowHeightProperty->SetValue(NewHeight);
    WindowWidthProperty->SetValue(NewWidth);

    return FReply::Handled();
}

void SScreenResolutionCustomization::HandleCommonResolutionSelected(const FPlayScreenResolution Resolution)
{
    int32 Width                              = Resolution.LogicalWidth;
    int32 Height                             = Resolution.LogicalHeight;
    ULevelEditorPlaySettings* PlayInSettings = GetMutableDefault<ULevelEditorPlaySettings>();
    // Maintain previous orientation (i.e., swap Width and Height if required)
    int32 PreviousWidth  = -1;
    int32 PreviousHeight = -1;
    if (WindowWidthProperty->GetValue(PreviousWidth) == FPropertyAccess::Success && WindowHeightProperty->GetValue(PreviousHeight) == FPropertyAccess::Success)
    {
        const bool bIsOrientationPreserved = (PreviousWidth < PreviousHeight) != (Width < Height);
        if (bIsOrientationPreserved)
        {
            Width  = Resolution.LogicalHeight;
            Height = Resolution.LogicalWidth;
        }
    }

    UDeviceProfile* DeviceProfile = UDeviceProfileManager::Get().FindProfile(Resolution.ProfileName, false);
    if (DeviceProfile)
    {
        PlayInSettings->DeviceToEmulate = Resolution.ProfileName;
    }
    else
    {
        PlayInSettings->DeviceToEmulate = FString();
    }

    if ((PreviousWidth == Width) && (PreviousHeight == Height))
    {
        // Since the values are identical, the SetValue on the property handle will not actually change the value and trigger OnPropertyValueChanged, so call our handler directly
        OnSizeChanged();
    }
    else
    {
        WindowHeightProperty->SetValue(Height);
        WindowWidthProperty->SetValue(Width);
    }
}

const FSlateBrush* SScreenResolutionCustomization::GetAspectRatioSwitchImage() const
{
    FString HeightString;
    WindowHeightProperty->GetValueAsDisplayString(HeightString);
    int32 Height = FCString::Atoi(*HeightString);
    FString WidthString;
    WindowWidthProperty->GetValueAsDisplayString(WidthString);
    int32 Width = FCString::Atoi(*WidthString);
    if (Height > Width)
    {
        return FEditorStyle::Get().GetBrush("UMGEditor.OrientPortrait");
    }
    return FEditorStyle::Get().GetBrush("UMGEditor.OrientLandscape");
}

void SScreenResolutionCustomization::OnSizeChanged()
{
    GetMutableDefault<ULevelEditorPlaySettings>()->UpdateCustomSafeZones();
}

FUIAction SScreenResolutionCustomization::GetResolutionMenuAction(const FPlayScreenResolution& ScreenResolution)
{
    return FUIAction(FExecuteAction::CreateRaw(this, &SScreenResolutionCustomization::HandleCommonResolutionSelected, ScreenResolution));
}

TSharedRef<SWidget> SScreenResolutionCustomization::GetResolutionsMenu()
{
    UCommonResolutionMenuContext* CommonResolutionMenuContext     = NewObject<UCommonResolutionMenuContext>();
    CommonResolutionMenuContext->GetUIActionFromLevelPlaySettings = UCommonResolutionMenuContext::FGetUIActionFromLevelPlaySettings::CreateRaw(this, &SScreenResolutionCustomization::GetResolutionMenuAction);

    return UToolMenus::Get()->GenerateWidget(ULevelEditorPlaySettings::GetCommonResolutionsMenuName(), CommonResolutionMenuContext);
}

/** Virtual destructor. */
FLevelEditorPlaySettingsCustomization::~FLevelEditorPlaySettingsCustomization()
{
}

void FLevelEditorPlaySettingsCustomization::CustomizeDetails(IDetailLayoutBuilder& LayoutBuilder)
{
    const float MaxPropertyWidth = 400.0f;

    // play in editor settings
    IDetailCategoryBuilder& PlayInEditorCategory = LayoutBuilder.EditCategory("PlayInEditor");
    {
        TArray<TSharedRef<IPropertyHandle>> PIECategoryProperties;
        PlayInEditorCategory.GetDefaultProperties(PIECategoryProperties, true, false);

        TSharedPtr<IPropertyHandle> PIEEnableSoundHandle = LayoutBuilder.GetProperty(GET_MEMBER_NAME_CHECKED(ULevelEditorPlaySettings, EnableGameSound));
        PIESoundQualityLevelHandle                       = LayoutBuilder.GetProperty(GET_MEMBER_NAME_CHECKED(ULevelEditorPlaySettings, PlayInEditorSoundQualityLevel));
        PIESoundQualityLevelHandle->MarkHiddenByCustomization();

        for (TSharedRef<IPropertyHandle>& PropertyHandle: PIECategoryProperties)
        {
            if (PropertyHandle->GetProperty() != PIESoundQualityLevelHandle->GetProperty())
            {
                PlayInEditorCategory.AddProperty(PropertyHandle);
            }

            if (PropertyHandle->GetProperty() == PIEEnableSoundHandle->GetProperty())
            {
                PlayInEditorCategory.AddCustomRow(PIESoundQualityLevelHandle->GetPropertyDisplayName(), false)
                    .NameContent()
                        [PIESoundQualityLevelHandle->CreatePropertyNameWidget()]
                    .ValueContent()
                    .MaxDesiredWidth(MaxPropertyWidth)
                        [SAssignNew(QualityLevelComboBox, SComboBox<TSharedPtr<FString>>)
                             .OptionsSource(&AvailableQualityLevels)
                             .OnComboBoxOpening(this, &FLevelEditorPlaySettingsCustomization::HandleQualityLevelComboBoxOpening)
                             .OnGenerateWidget(this, &FLevelEditorPlaySettingsCustomization::HandleQualityLevelComboBoxGenerateWidget)
                             .OnSelectionChanged(this, &FLevelEditorPlaySettingsCustomization::HandleQualityLevelSelectionChanged)
                                 [SNew(STextBlock)
                                      .Text(this, &FLevelEditorPlaySettingsCustomization::GetSelectedQualityLevelName)]];
            }
        }
    }
    IDetailCategoryBuilder& GameViewportSettings = LayoutBuilder.EditCategory("GameViewportSettings");
    {
        // new window resolution
        TSharedRef<IPropertyHandle> WindowHeightHandle    = LayoutBuilder.GetProperty(GET_MEMBER_NAME_CHECKED(ULevelEditorPlaySettings, NewWindowHeight));
        TSharedRef<IPropertyHandle> WindowWidthHandle     = LayoutBuilder.GetProperty(GET_MEMBER_NAME_CHECKED(ULevelEditorPlaySettings, NewWindowWidth));
        TSharedRef<IPropertyHandle> WindowPositionHandle  = LayoutBuilder.GetProperty(GET_MEMBER_NAME_CHECKED(ULevelEditorPlaySettings, NewWindowPosition));
        TSharedRef<IPropertyHandle> CenterNewWindowHandle = LayoutBuilder.GetProperty(GET_MEMBER_NAME_CHECKED(ULevelEditorPlaySettings, CenterNewWindow));
        TSharedRef<IPropertyHandle> EmulatedDeviceHandle  = LayoutBuilder.GetProperty(GET_MEMBER_NAME_CHECKED(ULevelEditorPlaySettings, DeviceToEmulate));

        WindowHeightHandle->MarkHiddenByCustomization();
        WindowWidthHandle->MarkHiddenByCustomization();
        WindowPositionHandle->MarkHiddenByCustomization();
        CenterNewWindowHandle->MarkHiddenByCustomization();
        EmulatedDeviceHandle->MarkHiddenByCustomization();

        GameViewportSettings.AddCustomRow(LOCTEXT("NewViewportResolutionRow", "New Viewport Resolution"), false)
            .NameContent()
                [SNew(STextBlock)
                     .Font(LayoutBuilder.GetDetailFont())
                     .Text(LOCTEXT("NewViewportResolutionName", "New Viewport Resolution"))
                     .ToolTipText(LOCTEXT("NewWindowSizeTooltip", "Sets the width and height of floating PIE windows (in pixels)"))]
            .ValueContent()
            .MaxDesiredWidth(MaxPropertyWidth)
                [SNew(SScreenResolutionCustomization, &LayoutBuilder, WindowHeightHandle, WindowWidthHandle)];

        GameViewportSettings.AddCustomRow(LOCTEXT("NewWindowPositionRow", "New Window Position"), false)
            .NameContent()
                [SNew(STextBlock)
                     .Font(LayoutBuilder.GetDetailFont())
                     .Text(LOCTEXT("NewWindowPositionName", "New Window Position"))
                     .ToolTipText(LOCTEXT("NewWindowPositionTooltip", "Sets the screen coordinates for the top-left corner of floating PIE windows (in pixels)"))]
            .ValueContent()
            .MaxDesiredWidth(MaxPropertyWidth)
                [SNew(SScreenPositionCustomization, &LayoutBuilder, WindowPositionHandle, CenterNewWindowHandle)];

        GameViewportSettings.AddCustomRow(LOCTEXT("SafeZonePreviewName", "Safe Zone Preview"), false)
            .NameContent()
                [SNew(STextBlock)
                     .Font(LayoutBuilder.GetDetailFont())
                     .Text(LOCTEXT("SafeZonePreviewName", "Safe Zone Preview"))]
            .ValueContent()
                [SNew(STextBlock)
                     .Font(LayoutBuilder.GetDetailFont())
                     .Text(this, &FLevelEditorPlaySettingsCustomization::GetPreviewText)
                     .ToolTipText(this, &FLevelEditorPlaySettingsCustomization::GetPreviewTextToolTipText)];
    }

    // play in new window settings
    IDetailCategoryBuilder& PlayInNewWindowCategory = LayoutBuilder.EditCategory("PlayInNewWindow");
    {
        // Mac does not support parenting, do not show
#if PLATFORM_MAC
        PlayInNewWindowCategory.AddProperty("PIEAlwaysOnTop")
            .DisplayName(LOCTEXT("PIEAlwaysOnTop", "Always On Top"))
            .IsEnabled(false);
#else
        PlayInNewWindowCategory.AddProperty("PIEAlwaysOnTop")
            .DisplayName(LOCTEXT("PIEAlwaysOnTop", "Always On Top"));
#endif
    }

    // play in standalone game settings
    IDetailCategoryBuilder& PlayInStandaloneCategory = LayoutBuilder.EditCategory("PlayInStandaloneGame");
    {
        // command line options
        TSharedPtr<IPropertyHandle> DisableStandaloneSoundProperty = LayoutBuilder.GetProperty(GET_MEMBER_NAME_CHECKED(ULevelEditorPlaySettings, DisableStandaloneSound));

        DisableStandaloneSoundProperty->MarkHiddenByCustomization();

        PlayInStandaloneCategory.AddCustomRow(LOCTEXT("AdditionalStandaloneDetails", "Additional Options"), false)
            .NameContent()
                [SNew(STextBlock)
                     .Font(LayoutBuilder.GetDetailFont())
                     .Text(LOCTEXT("ClientCmdLineName", "Command Line Options"))
                     .ToolTipText(LOCTEXT("ClientCmdLineTooltip", "Generates a command line for additional settings that will be passed to the game clients."))]
            .ValueContent()
            .MaxDesiredWidth(MaxPropertyWidth)
                [SNew(SHorizontalBox)

                 + SHorizontalBox::Slot()
                       .AutoWidth()
                           [DisableStandaloneSoundProperty->CreatePropertyValueWidget()]

                 + SHorizontalBox::Slot()
                       .Padding(0.0f, 2.5f)
                       .VAlign(VAlign_Center)
                       .AutoWidth()
                           [DisableStandaloneSoundProperty->CreatePropertyNameWidget(LOCTEXT("DisableStandaloneSoundLabel", "Disable Sound (-nosound)"))]

        ];
    }

    // multi-player options
    IDetailCategoryBuilder& NetworkCategory = LayoutBuilder.EditCategory("Multiplayer Options");
    TArray<TSharedRef<IPropertyHandle>> AllProperties;
    NetworkCategory.GetDefaultProperties(AllProperties);

    {
        // Add all the default properties in before we add custom rows at the bottom.
        for (TSharedRef<IPropertyHandle> DefaultProperty: AllProperties)
        {
            NetworkCategory.AddProperty(DefaultProperty);
        }

        // client window size
        TSharedRef<IPropertyHandle> WindowHeightHandle = LayoutBuilder.GetProperty("ClientWindowHeight");
        TSharedRef<IPropertyHandle> WindowWidthHandle  = LayoutBuilder.GetProperty("ClientWindowWidth");

        WindowHeightHandle->MarkHiddenByCustomization();
        WindowWidthHandle->MarkHiddenByCustomization();

        NetworkCategory.AddCustomRow(LOCTEXT("PlayInNetworkViewportSize", "Viewport Size\n(Additional Clients)"), false)
            .NameContent()
                [WindowHeightHandle->CreatePropertyNameWidget(LOCTEXT("ClientViewportSizeName", "Multiplayer Viewport Size (in pixels)"), LOCTEXT("ClientWindowSizeTooltip", "Width and Height to use when spawning additional clients. Useful when you need multiple clients connected but only interact with one window."))]
            .ValueContent()
            .MaxDesiredWidth(MaxPropertyWidth)
                [SNew(SScreenResolutionCustomization, &LayoutBuilder, WindowHeightHandle, WindowWidthHandle)]
            .IsEnabled(TAttribute<bool>(this, &FLevelEditorPlaySettingsCustomization::HandleClientWindowSizePropertyIsEnabled));

        NetworkCategory.AddCustomRow(LOCTEXT("AdditionalMultiplayerDetails", "Additional Options"), true)
            .NameContent()
                [SNew(STextBlock)
                     .Font(LayoutBuilder.GetDetailFont())
                     .Text(LOCTEXT("PlainTextName", "Play In Editor Description"))
                     .ToolTipText(LOCTEXT("PlainTextToolTip", "A brief description of the multiplayer settings and what to expect if you play with them in the editor."))]
            .ValueContent()
            .MaxDesiredWidth(MaxPropertyWidth)
                [SNew(STextBlock)
                     .Font(LayoutBuilder.GetDetailFont())
                     .Text(this, &FLevelEditorPlaySettingsCustomization::HandleMultiplayerOptionsDescription)
                     .WrapTextAt(MaxPropertyWidth)];
    }
}

TSharedRef<IDetailCustomization> FLevelEditorPlaySettingsCustomization::MakeInstance()
{
    return MakeShareable(new FLevelEditorPlaySettingsCustomization());
}

FText FLevelEditorPlaySettingsCustomization::HandleMultiplayerOptionsDescription() const
{
    const ULevelEditorPlaySettings* PlayInSettings = GetDefault<ULevelEditorPlaySettings>();
    const bool bLaunchSeparateServer               = PlayInSettings->bLaunchSeparateServer;
    const bool CanRunUnderOneProcess               = [&PlayInSettings]
    {
        bool RunUnderOneProcess(false);
        return (PlayInSettings->GetRunUnderOneProcess(RunUnderOneProcess) && RunUnderOneProcess);
    }();
    const int32 PlayNumberOfClients = [&PlayInSettings]
    {
        int32 NumClients(0);
        return (PlayInSettings->GetPlayNumberOfClients(NumClients) ? NumClients : 0);
    }();
    const EPlayNetMode PlayNetMode = [&PlayInSettings]
    {
        EPlayNetMode NetMode(PIE_Standalone);
        return (PlayInSettings->GetPlayNetMode(NetMode) ? NetMode : PIE_Standalone);
    }();
    FString Desc;
    if (CanRunUnderOneProcess)
    {
        Desc += LOCTEXT("MultiplayerDescription_OneProcess", "The following will all run under one UE4 instance:\n").ToString();
        if (PlayNetMode == EPlayNetMode::PIE_Client)
        {
            Desc += LOCTEXT("MultiplayerDescription_DedicatedServerHidden", "A hidden dedicated server instance will run in editor. ").ToString();
            if (PlayNumberOfClients == 1)
            {
                Desc += LOCTEXT("MultiplayerDescription_EditorClient", "The editor will connect as a client. ").ToString();
            }
            else
            {
                Desc += FText::Format(LOCTEXT("MultiplayerDescription_EditorAndClients", "The editor will connect as a client and {0} additional client window(s) will also connect. "), FText::AsNumber(PlayNumberOfClients - 1)).ToString();
            }
        }
        else if (PlayNetMode == EPlayNetMode::PIE_ListenServer)
        {
            if (PlayNumberOfClients == 1)
            {
                Desc += LOCTEXT("MultiplayerDescription_EditorListenServer", "The editor will run as a listen server. ").ToString();
            }
            else
            {
                Desc += FText::Format(LOCTEXT("MultiplayerDescription_EditorListenServerAndClients", "The editor will run as a listen server and {0} additional client window(s) will also connect to it. "), FText::AsNumber(PlayNumberOfClients - 1)).ToString();
            }
        }
        else
        {
            if (PlayNumberOfClients == 1)
            {
                Desc += LOCTEXT("MultiplayerDescription_EditorStandalone", "The editor will run in offline mode. ").ToString();
            }
            else
            {
                Desc += FText::Format(LOCTEXT("MultiplayerDescription_StandaloneAndClients", "The editor will run offline and {0} additional offline mode window(s) will also open. "), FText::AsNumber(PlayNumberOfClients - 1)).ToString();
            }

            if (bLaunchSeparateServer)
            {
                Desc += LOCTEXT("MultiplayerDescription_StandaloneSeparateServer", "\nAn additional server instance will be launched but not connected to. Use \"open 127.0.0.1:<port>\" to connect. ").ToString();
            }
        }
    }
    else
    {
        Desc += LOCTEXT("MultiplayerDescription_MultiProcess", "The following will run with multiple UE4 instances:\n").ToString();
        if (PlayNetMode == PIE_Standalone)
        {
            if (PlayNumberOfClients == 1)
            {
                Desc += LOCTEXT("MultiplayerDescription_EditorStandalone", "The editor will run in offline mode. ").ToString();
            }
            else
            {
                Desc += FText::Format(LOCTEXT("MultiplayerDescription_StandaloneAndClients", "The editor will run offline and {0} additional offline mode window(s) will also open. "), FText::AsNumber(PlayNumberOfClients - 1)).ToString();
            }

            if (bLaunchSeparateServer)
            {
                Desc += LOCTEXT("MultiplayerDescription_StandaloneSeparateServer", "\nAn additional server instance will be launched but not connected to. Use \"open 127.0.0.1:<port>\" to connect. ").ToString();
            }
        }
        else if (PlayNetMode == PIE_ListenServer)
        {
            if (PlayNumberOfClients == 1)
            {
                Desc += LOCTEXT("MultiplayerDescription_EditorListenServer", "The editor will run as a listen server. ").ToString();
            }
            else
            {
                Desc += FText::Format(LOCTEXT("MultiplayerDescription_EditorListenServerAndClients", "The editor will run as a listen server and {0} additional client window(s) will also connect to it. "), FText::AsNumber(PlayNumberOfClients - 1)).ToString();
            }
        }
        else
        {
            // Client requires additional dedicated server instance
            Desc += LOCTEXT("MultiplayerDescription_DedicatedServerNewWindow", "A dedicated server will open in a new window. ").ToString();
            if (PlayNumberOfClients == 1)
            {
                Desc += LOCTEXT("MultiplayerDescription_EditorClient", "The editor will connect as a client. ").ToString();
            }
            else
            {
                Desc += FText::Format(LOCTEXT("MultiplayerDescription_EditorAndClients", "The editor will connect as a client and {0} additional client window(s) will also connect. "), FText::AsNumber(PlayNumberOfClients - 1)).ToString();
            }
        }
    }
    return FText::FromString(Desc);
}

bool FLevelEditorPlaySettingsCustomization::HandleClientWindowSizePropertyIsEnabled() const
{
    return GetDefault<ULevelEditorPlaySettings>()->IsClientWindowSizeActive();
}

bool FLevelEditorPlaySettingsCustomization::HandleGameOptionsIsEnabled() const
{
    return GetDefault<ULevelEditorPlaySettings>()->IsAdditionalServerGameOptionsActive();
}

bool FLevelEditorPlaySettingsCustomization::HandleRerouteInputToSecondWindowEnabled() const
{
    return GetDefault<ULevelEditorPlaySettings>()->IsRouteGamepadToSecondWindowActive();
}

EVisibility FLevelEditorPlaySettingsCustomization::HandleRerouteInputToSecondWindowVisibility() const
{
    return GetDefault<ULevelEditorPlaySettings>()->GetRouteGamepadToSecondWindowVisibility();
}

void FLevelEditorPlaySettingsCustomization::HandleQualityLevelComboBoxOpening()
{
    const UAudioSettings* AudioSettings = GetDefault<UAudioSettings>();
    AvailableQualityLevels.Empty(AudioSettings->QualityLevels.Num());
    for (const FAudioQualitySettings& AQSettings: AudioSettings->QualityLevels)
    {
        AvailableQualityLevels.Add(MakeShareable(new FString(AQSettings.DisplayName.ToString())));
    }
    QualityLevelComboBox->RefreshOptions();
}

TSharedRef<SWidget> FLevelEditorPlaySettingsCustomization::HandleQualityLevelComboBoxGenerateWidget(TSharedPtr<FString> InItem)
{
    return SNew(STextBlock)
        .Text(FText::FromString(*InItem));
}

void FLevelEditorPlaySettingsCustomization::HandleQualityLevelSelectionChanged(TSharedPtr<FString> InSelection, ESelectInfo::Type SelectInfo)
{
    if (InSelection.IsValid())
    {
        const UAudioSettings* AudioSettings = GetDefault<UAudioSettings>();
        for (int32 QualityLevel = 0; QualityLevel < AudioSettings->QualityLevels.Num(); ++QualityLevel)
        {
            if (AudioSettings->QualityLevels[QualityLevel].DisplayName.ToString() == *InSelection)
            {
                PIESoundQualityLevelHandle->SetValue(QualityLevel);
                break;
            }
        }
    }
}

FText FLevelEditorPlaySettingsCustomization::GetSelectedQualityLevelName() const
{
    int32 QualityLevel = 0;
    PIESoundQualityLevelHandle->GetValue(QualityLevel);
    const UAudioSettings* AudioSettings = GetDefault<UAudioSettings>();
    return (QualityLevel >= 0 && QualityLevel < AudioSettings->QualityLevels.Num() ? AudioSettings->QualityLevels[QualityLevel].DisplayName : FText::GetEmpty());
}

FText FLevelEditorPlaySettingsCustomization::GetPreviewText() const
{
    const ULevelEditorPlaySettings* LevelEditorPlaySettings = GetDefault<ULevelEditorPlaySettings>();
    float SafeZone                                          = FDisplayMetrics::GetDebugTitleSafeZoneRatio();
    if (FMath::IsNearlyEqual(SafeZone, 1.0f))
    {
        if (LevelEditorPlaySettings->DeviceToEmulate.IsEmpty() || LevelEditorPlaySettings->PIESafeZoneOverride.GetDesiredSize().IsZero())
        {
            return LOCTEXT("NoSafeZoneSet", "No Device Safe Zone Set");
        }
        else
        {
            return FText::FromString(LevelEditorPlaySettings->DeviceToEmulate);
        }
    }
    else
    {
        return FText::Format(LOCTEXT("UniformSafeZone", "Uniform Safe Zone: {0}"), FText::AsNumber(SafeZone));
    }
}

FText FLevelEditorPlaySettingsCustomization::GetPreviewTextToolTipText() const
{
    if (FDisplayMetrics::GetDebugTitleSafeZoneRatio() < 1.0f)
    {
        return LOCTEXT("SafeZoneSetFromRatioCvarToolTip", "Uniform Safe Zone was set from cvar (r.DebugSafeZone.TitleRatio).");
    }

    const ULevelEditorPlaySettings* LevelEditorPlaySettings = GetDefault<ULevelEditorPlaySettings>();
    if (!LevelEditorPlaySettings->DeviceToEmulate.IsEmpty() && !LevelEditorPlaySettings->PIESafeZoneOverride.GetDesiredSize().IsZero())
    {
        FMargin PIESafeZoneOverride = LevelEditorPlaySettings->PIESafeZoneOverride;
        FNumberFormattingOptions FormattingOptions;
        FormattingOptions.SetMaximumFractionalDigits(2);
        FormattingOptions.SetMinimumFractionalDigits(2);

        return FText::Format(
            LOCTEXT("CustomSafeZoneSetFromDevice", "PIE safe zone override set from device {0} profile.\nLeft: {1}, Top: {2}, Right: {3}, Bottom: {4}"),
            FText::FromString(LevelEditorPlaySettings->DeviceToEmulate),
            FText::AsNumber(PIESafeZoneOverride.Left, &FormattingOptions),
            FText::AsNumber(PIESafeZoneOverride.Top, &FormattingOptions),
            FText::AsNumber(PIESafeZoneOverride.Right, &FormattingOptions),
            FText::AsNumber(PIESafeZoneOverride.Bottom, &FormattingOptions));
    }

    return FText();
}

#undef LOCTEXT_NAMESPACE