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#rnx #rb none #ROBOMERGE-SOURCE: CL 10869241 via CL 10869527 via CL 10869904 #ROBOMERGE-BOT: (v613-10869866) [CL 10870586 by ryan durand in Main branch]
85 lines
3.5 KiB
C++
85 lines
3.5 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#include "MaterialExpressionTextureBaseDetails.h"
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#include "PropertyCustomizationHelpers.h"
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#include "DetailLayoutBuilder.h"
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#include "Materials/MaterialExpressionTextureBase.h"
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#include "Engine/Texture.h"
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#include "Engine/Texture2D.h"
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#define LOCTEXT_NAMESPACE "MaterialExpressionTextureBaseDetails"
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TSharedRef<IDetailCustomization> FMaterialExpressionTextureBaseDetails::MakeInstance()
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{
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return MakeShareable(new FMaterialExpressionTextureBaseDetails);
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}
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FMaterialExpressionTextureBaseDetails::~FMaterialExpressionTextureBaseDetails()
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{
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FCoreUObjectDelegates::OnObjectPropertyChanged.Remove(DelegateHandle);
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}
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void FMaterialExpressionTextureBaseDetails::CustomizeDetails( IDetailLayoutBuilder& DetailLayout )
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{
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TArray<TWeakObjectPtr<UObject>> Objects;
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DetailLayout.GetObjectsBeingCustomized(Objects);
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if (Objects.Num() > 0)
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{
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Expression = CastChecked<UMaterialExpressionTextureBase>(Objects[0]);
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}
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EnumRestriction = MakeShareable(new FPropertyRestriction(LOCTEXT("VirtualTextureSamplerMatch", "Sampler type must match VirtualTexture usage")));
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TSharedPtr<IPropertyHandle> SamplerTypeHandle = DetailLayout.GetProperty(GET_MEMBER_NAME_CHECKED(UMaterialExpressionTextureBase, SamplerType));
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SamplerTypeHandle->AddRestriction(EnumRestriction.ToSharedRef());
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// IPropertyHandle::SetOnPropertyValueChanged will catch property changes initiated by the editor
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TSharedPtr<IPropertyHandle> TextureHandle = DetailLayout.GetProperty(GET_MEMBER_NAME_CHECKED(UMaterialExpressionTextureBase, Texture));
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TextureHandle->SetOnPropertyValueChanged(FSimpleDelegate::CreateSP(this, &FMaterialExpressionTextureBaseDetails::OnTextureChanged));
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// FCoreUObjectDelegates::OnObjectPropertyChanged will catch property changes initiated by C++
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// This is required to ensure UI is properly updated when the VT conversion tool runs and updates textures/materials
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DelegateHandle = FCoreUObjectDelegates::OnObjectPropertyChanged.AddRaw(this, &FMaterialExpressionTextureBaseDetails::OnPropertyChanged);
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OnTextureChanged();
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}
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void FMaterialExpressionTextureBaseDetails::OnTextureChanged()
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{
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bool bAllowVirtualTexture = true;
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bool bAllowNonVirtualTexture = true;
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if (Expression.IsValid() && Expression->Texture)
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{
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bAllowVirtualTexture = Expression->Texture->VirtualTextureStreaming;
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bAllowNonVirtualTexture = !bAllowVirtualTexture;
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}
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EnumRestriction->RemoveAll();
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const UEnum* MaterialSamplerTypeEnum = StaticEnum<EMaterialSamplerType>();
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for (int SamplerTypeIndex = 0; SamplerTypeIndex < SAMPLERTYPE_MAX; ++SamplerTypeIndex)
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{
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const bool bIsVirtualTexture = IsVirtualSamplerType((EMaterialSamplerType)SamplerTypeIndex);
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if ((bIsVirtualTexture && !bAllowVirtualTexture) || (!bIsVirtualTexture && !bAllowNonVirtualTexture))
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{
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EnumRestriction->AddHiddenValue(MaterialSamplerTypeEnum->GetNameStringByValue(SamplerTypeIndex));
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}
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}
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}
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void FMaterialExpressionTextureBaseDetails::OnPropertyChanged(UObject* ObjectBeingModified, FPropertyChangedEvent& PropertyChangedEvent)
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{
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if (ObjectBeingModified == Expression && PropertyChangedEvent.GetPropertyName() == GET_MEMBER_NAME_CHECKED(UMaterialExpressionTextureBase, Texture))
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{
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// Update enum list if our texture reference is changed
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OnTextureChanged();
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}
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else if(Expression.IsValid() && Expression->Texture == ObjectBeingModified && PropertyChangedEvent.GetPropertyName() == GET_MEMBER_NAME_CHECKED(UTexture, VirtualTextureStreaming))
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{
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// Update enum list of currently assigned texture's VT streaming status is changed
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OnTextureChanged();
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}
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}
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#undef LOCTEXT_NAMESPACE
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