157 lines
4.3 KiB
C++
157 lines
4.3 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#include "KeyStructCustomization.h"
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#include "Containers/Array.h"
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#include "DetailWidgetRow.h"
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#include "Fonts/SlateFontInfo.h"
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#include "HAL/Platform.h"
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#include "HAL/PlatformCrt.h"
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#include "InputCoreTypes.h"
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#include "InputSettingsDetails.h"
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#include "Layout/Margin.h"
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#include "Misc/Attribute.h"
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#include "PropertyHandle.h"
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#include "SlotBase.h"
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#include "Types/SlateEnums.h"
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#include "UObject/ObjectMacros.h"
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#include "UObject/UnrealType.h"
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#include "Widgets/DeclarativeSyntaxSupport.h"
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#include "Widgets/SBoxPanel.h"
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class SWidget;
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#define LOCTEXT_NAMESPACE "FKeyStructCustomization"
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FKeyStructCustomization::FKeyStructCustomization() = default;
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/* FKeyStructCustomization static interface
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*****************************************************************************/
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void FKeyStructCustomization::SetEnableKeySelector(bool bKeySelectorEnabled)
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{
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bEnableKeySelector = bKeySelectorEnabled;
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if (KeySelector)
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{
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KeySelector->SetEnabledFromKeyStructCustomization(bEnableKeySelector);
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}
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}
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void FKeyStructCustomization::SetKey(const FString& KeyName)
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{
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PropertyHandle->SetValueFromFormattedString(KeyName);
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}
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TSharedRef<IPropertyTypeCustomization> FKeyStructCustomization::MakeInstance( )
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{
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return MakeShareable(new FKeyStructCustomization);
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}
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/* IPropertyTypeCustomization interface
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*****************************************************************************/
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void FKeyStructCustomization::CustomizeHeader( TSharedRef<class IPropertyHandle> StructPropertyHandle, class FDetailWidgetRow& HeaderRow, IPropertyTypeCustomizationUtils& StructCustomizationUtils )
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{
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PropertyHandle = StructPropertyHandle;
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// We only want to allow the FKey to be changed if the property is NOT const.
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const bool bCanChangeKey = !StructPropertyHandle->GetProperty()->HasAnyPropertyFlags(CPF_EditConst);
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// create struct header
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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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.MinDesiredWidth(125.0f)
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.MaxDesiredWidth(325.0f)
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[
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SNew(SKeySelector)
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.CurrentKey(this, &FKeyStructCustomization::GetCurrentKey)
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.OnKeyChanged(this, &FKeyStructCustomization::OnKeyChanged)
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.Font(StructCustomizationUtils.GetRegularFont())
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.AllowClear(!StructPropertyHandle->GetProperty()->HasAnyPropertyFlags(CPF_NoClear))
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.FilterBlueprintBindable(false)
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.AllowKeyChange(bCanChangeKey)
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];
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}
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void FKeyStructCustomization::CustomizeHeaderOnlyWithButton(TSharedRef<class IPropertyHandle> StructPropertyHandle, class FDetailWidgetRow& HeaderRow, IPropertyTypeCustomizationUtils& StructCustomizationUtils, TSharedRef<SWidget> Button)
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{
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PropertyHandle = StructPropertyHandle;
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KeySelector = SNew(SKeySelector)
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.CurrentKey(this, &FKeyStructCustomization::GetCurrentKey)
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.OnKeyChanged(this, &FKeyStructCustomization::OnKeyChanged)
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.Font(StructCustomizationUtils.GetRegularFont())
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.AllowClear(!StructPropertyHandle->GetProperty()->HasAnyPropertyFlags(CPF_NoClear))
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.FilterBlueprintBindable(false)
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.IsEnabled_Lambda([this]() -> bool
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{
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return bEnableKeySelector;
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});
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KeySelector->SetEnabledFromKeyStructCustomization(bEnableKeySelector);
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KeySelector->SetDisabledKeySelectorToolTip(DisabledKeySelectorToolTip);
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// create struct header
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HeaderRow.NameContent()
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.MinDesiredWidth(125.0f)
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.MaxDesiredWidth(325.0f)
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[
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SNew(SHorizontalBox)
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+ SHorizontalBox::Slot()
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.Padding(InputSettingsDetails::InputConstants::PropertyPadding)
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//.AutoWidth()
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[
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KeySelector.ToSharedRef()
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]
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+ SHorizontalBox::Slot()
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.Padding(InputSettingsDetails::InputConstants::PropertyPadding)
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.HAlign(HAlign_Center)
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.VAlign(VAlign_Center)
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.AutoWidth()
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[
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Button
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]
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];
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}
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TOptional<FKey> FKeyStructCustomization::GetCurrentKey() const
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{
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if (!bEnableKeySelector)
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{
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PropertyHandle->SetValueFromFormattedString(DefaultKeyName);
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}
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TArray<void*> StructPtrs;
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PropertyHandle->AccessRawData(StructPtrs);
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if (StructPtrs.Num() > 0)
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{
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FKey* SelectedKey = (FKey*)StructPtrs[0];
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if (SelectedKey)
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{
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for(int32 StructPtrIndex = 1; StructPtrIndex < StructPtrs.Num(); ++StructPtrIndex)
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{
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if (*(FKey*)StructPtrs[StructPtrIndex] != *SelectedKey)
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{
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return TOptional<FKey>();
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}
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}
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return *SelectedKey;
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}
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}
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return FKey();
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}
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void FKeyStructCustomization::OnKeyChanged(TSharedPtr<FKey> SelectedKey)
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{
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PropertyHandle->SetValueFromFormattedString(SelectedKey->ToString());
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}
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#undef LOCTEXT_NAMESPACE
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