48 lines
1.6 KiB
C++
48 lines
1.6 KiB
C++
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/************************************************************************************
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* *
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* Copyright (C) 2020 Truong Bui. *
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* Website: https://github.com/truong-bui/AsyncLoadingScreen *
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* Licensed under the MIT License. See 'LICENSE' file for full license information. *
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* *
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************************************************************************************/
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#include "SLoadingScreenLayout.h"
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#include "Engine/UserInterfaceSettings.h"
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#include "Engine/Engine.h"
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#include "Engine/GameViewportClient.h"
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float SLoadingScreenLayout::PointSizeToSlateUnits(float PointSize)
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{
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const float SlateFreeTypeHorizontalResolutionDPI = 96.0f;
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const float FreeTypeNativeDPI = 72.0;
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const float PixelSize = PointSize * (SlateFreeTypeHorizontalResolutionDPI / FreeTypeNativeDPI);
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return PixelSize;
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}
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float SLoadingScreenLayout::GetDPIScale() const
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{
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FIntPoint Size;
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if (GEngine && GEngine->GameViewport)
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{
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FVector2D ViewportSize;
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GEngine->GameViewport->GetViewportSize(ViewportSize);
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int32 X = FGenericPlatformMath::FloorToInt(ViewportSize.X);
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int32 Y = FGenericPlatformMath::FloorToInt(ViewportSize.Y);
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Size = FIntPoint(X, Y);
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}
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else
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{
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const FVector2D DrawSize = GetTickSpaceGeometry().ToPaintGeometry().GetLocalSize();
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if (DrawSize.Equals(FVector2D::ZeroVector))
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{
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return 1.0f;
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}
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int32 X = FGenericPlatformMath::FloorToInt(DrawSize.X);
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int32 Y = FGenericPlatformMath::FloorToInt(DrawSize.Y);
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Size = FIntPoint(X, Y);
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}
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return FMath::Clamp(GetDefault<UUserInterfaceSettings>()->GetDPIScaleBasedOnSize(Size), 0.1f, 1.0f);
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}
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