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

#include "Editor/EditorPerformanceSettings.h"
#include "EditorViewportClient.h"
#include "Editor.h"

static TAutoConsoleVariable<int32> CVarOverrideDPIBasedEditorViewportScaling(
    TEXT("Editor.OverrideDPIBasedEditorViewportScaling"),
    0,
    TEXT("Sets whether or not we should globally override screen percentage in editor and PIE viewports"),
    ECVF_Default);

UEditorPerformanceSettings::UEditorPerformanceSettings(const FObjectInitializer& ObjectInitializer)
    : Super(ObjectInitializer), bShowFrameRateAndMemory(false), bThrottleCPUWhenNotForeground(true), bDisableRealtimeViewportsInRemoteSessions(true), bMonitorEditorPerformance(false), bOverrideDPIBasedEditorViewportScaling(false), bEnableSharedDDCPerformanceNotifications(true), bEnableScalabilityWarningIndicator(true)
{
}

void UEditorPerformanceSettings::PostInitProperties()
{
    Super::PostInitProperties();

    CVarOverrideDPIBasedEditorViewportScaling->Set(bOverrideDPIBasedEditorViewportScaling, ECVF_SetByProjectSetting);
}

void UEditorPerformanceSettings::PostEditChangeProperty(FPropertyChangedEvent& PropertyChangedEvent)
{
    Super::PostEditChangeProperty(PropertyChangedEvent);

    ExportValuesToConsoleVariables(PropertyChangedEvent.Property);
    if (PropertyChangedEvent.Property && (PropertyChangedEvent.Property->GetFName() == GET_MEMBER_NAME_CHECKED(UEditorPerformanceSettings, bOverrideDPIBasedEditorViewportScaling)))
    {
        // Tell all viewports to refresh their screen percentage when the dpi scaling override changes
        for (FEditorViewportClient* Client: GEditor->GetAllViewportClients())
        {
            if (Client)
            {
                Client->RequestUpdateDPIScale();
                Client->Invalidate();
            }
        }

        if (GEngine->GameViewport)
        {
            GEngine->GameViewport->RequestUpdateDPIScale();
        }
    }
}