131 lines
3.5 KiB
C++
131 lines
3.5 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#include "FrameRateCustomization.h"
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#include "Containers/Array.h"
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#include "Containers/UnrealString.h"
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#include "Delegates/Delegate.h"
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#include "DetailWidgetRow.h"
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#include "Fonts/SlateFontInfo.h"
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#include "HAL/PlatformCrt.h"
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#include "IPropertyTypeCustomization.h"
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#include "IPropertyUtilities.h"
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#include "Misc/AssertionMacros.h"
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#include "Misc/Attribute.h"
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#include "Misc/FrameRate.h"
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#include "Misc/Optional.h"
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#include "PropertyEditorModule.h"
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#include "PropertyHandle.h"
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#include "UObject/Class.h"
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#include "UObject/Field.h"
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#include "UObject/PropertyPortFlags.h"
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#include "UObject/UnrealType.h"
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#include "Widgets/DeclarativeSyntaxSupport.h"
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#include "Widgets/SFrameRatePicker.h"
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class IDetailChildrenBuilder;
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#define LOCTEXT_NAMESPACE "FrameRateCustomization"
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TSharedRef<IPropertyTypeCustomization> FFrameRateCustomization::MakeInstance()
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{
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return MakeShareable(new FFrameRateCustomization);
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}
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void FFrameRateCustomization::CustomizeHeader(TSharedRef<IPropertyHandle> InPropertyHandle, FDetailWidgetRow& HeaderRow, IPropertyTypeCustomizationUtils& CustomizationUtils)
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{
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StructPropertyHandle = InPropertyHandle;
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TSharedPtr<IPropertyUtilities> PropertyUtils = CustomizationUtils.GetPropertyUtilities();
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HeaderRow.NameContent()
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[
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StructPropertyHandle->CreatePropertyNameWidget()
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]
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.ValueContent()
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[
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SNew(SFrameRatePicker)
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.Font(CustomizationUtils.GetRegularFont())
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.HasMultipleValues(this, &FFrameRateCustomization::HasMultipleValues)
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.Value(this, &FFrameRateCustomization::GetFirstFrameRate)
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.OnValueChanged(this, &FFrameRateCustomization::SetFrameRate)
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].IsEnabled(MakeAttributeLambda([=] { return !InPropertyHandle->IsEditConst() && PropertyUtils->IsPropertyEditingEnabled(); }));
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}
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void FFrameRateCustomization::CustomizeChildren(TSharedRef<IPropertyHandle> InPropertyHandle, IDetailChildrenBuilder& ChildBuilder, IPropertyTypeCustomizationUtils& CustomizationUtils)
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{
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}
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FFrameRate FFrameRateCustomization::GetFirstFrameRate() const
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{
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TArray<const void*> RawData;
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StructPropertyHandle->AccessRawData(RawData);
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for (const void* RawPtr : RawData)
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{
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if (RawPtr)
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{
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return *reinterpret_cast<const FFrameRate*>(RawPtr);
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}
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}
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return FFrameRate();
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}
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void FFrameRateCustomization::SetFrameRate(FFrameRate NewFrameRate)
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{
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if (FStructProperty* StructProperty = CastField<FStructProperty>(StructPropertyHandle->GetProperty()))
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{
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static FFrameRate DefaultRate(24,1);
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TArray<void*> RawData;
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StructPropertyHandle->AccessRawData(RawData);
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FFrameRate* PreviousFrameRate = RawData.Num() == 1 ? reinterpret_cast<FFrameRate*>(RawData[0]) : &DefaultRate;
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FString TextValue;
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StructProperty->Struct->ExportText(TextValue, &NewFrameRate, PreviousFrameRate, nullptr, EPropertyPortFlags::PPF_None, nullptr);
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ensure(StructPropertyHandle->SetValueFromFormattedString(TextValue, EPropertyValueSetFlags::DefaultFlags) == FPropertyAccess::Result::Success);
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}
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}
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bool FFrameRateCustomization::HasMultipleValues() const
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{
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TArray<const void*> RawData;
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StructPropertyHandle->AccessRawData(RawData);
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TOptional<FFrameRate> CompareAgainst;
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for (const void* RawPtr : RawData)
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{
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if (RawPtr == nullptr)
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{
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if (CompareAgainst.IsSet())
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{
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return false;
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}
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}
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else
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{
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FFrameRate ThisRate = *reinterpret_cast<const FFrameRate*>(RawPtr);
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if (!CompareAgainst.IsSet())
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{
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CompareAgainst = ThisRate;
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}
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else if (ThisRate != CompareAgainst.GetValue())
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{
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return true;
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}
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}
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}
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return false;
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}
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#undef LOCTEXT_NAMESPACE
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