109 lines
3.9 KiB
C++
109 lines
3.9 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "GameSettingFilterState.h"
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#include "GameSettingValueScalar.h"
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#include "Internationalization/Text.h"
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#include "Math/Range.h"
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#include "Misc/Optional.h"
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#include "Templates/Function.h"
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#include "Templates/SharedPointer.h"
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#include "UObject/UObjectGlobals.h"
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#include "GameSettingValueScalarDynamic.generated.h"
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class FGameSettingDataSource;
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class UObject;
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//////////////////////////////////////////////////////////////////////////
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// UGameSettingValueScalarDynamic
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//////////////////////////////////////////////////////////////////////////
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typedef TFunction<FText(double SourceValue, double NormalizedValue)> FSettingScalarFormatFunction;
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UCLASS()
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class GAMESETTINGS_API UGameSettingValueScalarDynamic : public UGameSettingValueScalar
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{
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GENERATED_BODY()
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public:
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static FSettingScalarFormatFunction Raw;
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static FSettingScalarFormatFunction RawOneDecimal;
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static FSettingScalarFormatFunction RawTwoDecimals;
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static FSettingScalarFormatFunction ZeroToOnePercent;
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static FSettingScalarFormatFunction ZeroToOnePercent_OneDecimal;
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static FSettingScalarFormatFunction SourceAsPercent1;
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static FSettingScalarFormatFunction SourceAsPercent100;
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static FSettingScalarFormatFunction SourceAsInteger;
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private:
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static const FNumberFormattingOptions& GetOneDecimalFormattingOptions();
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public:
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UGameSettingValueScalarDynamic();
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/** UGameSettingValue */
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virtual void Startup() override;
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virtual void StoreInitial() override;
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virtual void ResetToDefault() override;
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virtual void RestoreToInitial() override;
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/** UGameSettingValueScalar */
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virtual TOptional<double> GetDefaultValue() const override;
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virtual void SetValue(double Value, EGameSettingChangeReason Reason = EGameSettingChangeReason::Change) override;
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virtual double GetValue() const override;
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virtual TRange<double> GetSourceRange() const override;
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virtual double GetSourceStep() const override;
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virtual FText GetFormattedText() const override;
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/** UGameSettingValueDiscreteDynamic */
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void SetDynamicGetter(const TSharedRef<FGameSettingDataSource>& InGetter);
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void SetDynamicSetter(const TSharedRef<FGameSettingDataSource>& InSetter);
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void SetDefaultValue(double InValue);
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/** */
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void SetDisplayFormat(FSettingScalarFormatFunction InDisplayFormat);
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/** */
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void SetSourceRangeAndStep(const TRange<double>& InRange, double InSourceStep);
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/**
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* The SetSourceRangeAndStep defines the actual range the numbers could move in, but often
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* the true minimum for the user is greater than the minimum source range, so for example, the range
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* of some slider might be 0..100, but you want to restrict the slider so that while it shows
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* a bar that travels from 0 to 100, the user can't set anything lower than some minimum, e.g. 1.
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* That is the Minimum Limit.
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*/
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void SetMinimumLimit(const TOptional<double>& InMinimum);
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/**
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* The SetSourceRangeAndStep defines the actual range the numbers could move in, but rarely
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* the true maximum for the user is less than the maximum source range, so for example, the range
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* of some slider might be 0..100, but you want to restrict the slider so that while it shows
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* a bar that travels from 0 to 100, the user can't set anything lower than some maximum, e.g. 95.
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* That is the Maximum Limit.
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*/
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void SetMaximumLimit(const TOptional<double>& InMaximum);
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protected:
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/** UGameSettingValue */
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virtual void OnInitialized() override;
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void OnDataSourcesReady();
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protected:
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TSharedPtr<FGameSettingDataSource> Getter;
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TSharedPtr<FGameSettingDataSource> Setter;
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TOptional<double> DefaultValue;
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double InitialValue = 0;
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TRange<double> SourceRange = TRange<double>(0, 1);
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double SourceStep = 0.01;
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TOptional<double> Minimum;
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TOptional<double> Maximum;
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FSettingScalarFormatFunction DisplayFormat;
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};
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