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Struct Utils: Add Property Type Customization support for Instanced Structs

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#rb Mikko.Mononen, logan.buchy
#jira none

#ushell-cherrypick of 32823955 by kristof.morva1

new pf 6622aaf6684c0e6f582a4f22

[CL 33110930 by ben hoffman in ue5-main branch]
This commit is contained in:
ben hoffman
2024-04-19 14:37:05 -04:00
parent 1592e9ae7d
commit bfe8da0019
11 changed files with 218 additions and 58 deletions
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118
Engine/Source/Editor/PropertyEditor/Private/DetailPropertyRow.cpp
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@@ -11,6 +11,7 @@
#include "ObjectPropertyNode.h"
#include "PropertyCustomizationHelpers.h"
#include "PropertyEditorHelpers.h"
#include "PropertyHandleImpl.h"
#include "StructurePropertyNode.h"
#include "Modules/ModuleManager.h"
#include "Widgets/Layout/SSpacer.h"
@@ -636,12 +637,15 @@ TSharedPtr<IPropertyTypeCustomization> FDetailPropertyRow::GetPropertyCustomizat
return CustomInterface;
}
void FDetailPropertyRow::MakeExternalPropertyRowCustomization(TSharedPtr<FStructOnScope> StructData, FName PropertyName, TSharedRef<FDetailCategoryImpl> ParentCategory, FDetailLayoutCustomization& OutCustomization, const FAddPropertyParams& Parameters)
template<typename T>
void MakeExternalStructPropertyRowCustomization(const T& Struct, const UStruct* StructClass,
FName PropertyName, TSharedRef<FDetailCategoryImpl> ParentCategory, FDetailLayoutCustomization& OutCustomization,
const FAddPropertyParams& Parameters, bool bAllowChildren)
{
TSharedRef<FStructurePropertyNode> RootPropertyNode = MakeShared<FStructurePropertyNode>();
//SET
RootPropertyNode->SetStructure(StructData);
RootPropertyNode->SetStructure(Struct);
FPropertyNodeInitParams InitParams;
InitParams.ParentNode = nullptr;
@@ -650,7 +654,7 @@ void FDetailPropertyRow::MakeExternalPropertyRowCustomization(TSharedPtr<FStruct
InitParams.ArrayIndex = INDEX_NONE;
InitParams.bForceHiddenPropertyVisibility = Parameters.ShouldForcePropertyVisible() || FPropertySettings::Get().ShowHiddenProperties();
InitParams.bCreateCategoryNodes = PropertyName == NAME_None;
InitParams.bAllowChildren = false;
InitParams.bAllowChildren = bAllowChildren;
Parameters.OverrideAllowChildren(InitParams.bAllowChildren);
Parameters.OverrideCreateCategoryNodes(InitParams.bCreateCategoryNodes);
@@ -676,7 +680,7 @@ void FDetailPropertyRow::MakeExternalPropertyRowCustomization(TSharedPtr<FStruct
FPropertyEditorModule& PropertyEditorModule = FModuleManager::GetModuleChecked<FPropertyEditorModule>(PropertyEditorModuleName);
// Make a "fake" struct property to represent the entire struct
FStructProperty* StructProperty = PropertyEditorModule.RegisterStructOnScopeProperty(StructData.ToSharedRef());
FStructProperty* StructProperty = PropertyEditorModule.RegisterStructProperty(StructClass);
// Generate a node for the struct
TSharedPtr<FItemPropertyNode> ItemNode = MakeShared<FItemPropertyNode>();
@@ -699,45 +703,30 @@ void FDetailPropertyRow::MakeExternalPropertyRowCustomization(TSharedPtr<FStruct
}
}
void FDetailPropertyRow::MakeExternalPropertyRowCustomization(TSharedPtr<FStructOnScope> StructData, FName PropertyName, TSharedRef<FDetailCategoryImpl> ParentCategory, FDetailLayoutCustomization& OutCustomization, const FAddPropertyParams& Parameters)
{
MakeExternalStructPropertyRowCustomization<>(
StructData,
StructData->GetStruct(),
PropertyName,
ParentCategory,
OutCustomization,
Parameters,
/* bAllowChildren= */ false
);
}
void FDetailPropertyRow::MakeExternalPropertyRowCustomization(TSharedPtr<IStructureDataProvider> StructDataProvider, FName PropertyName, TSharedRef<FDetailCategoryImpl> ParentCategory, struct FDetailLayoutCustomization& OutCustomization, const FAddPropertyParams& Parameters)
{
TSharedRef<FStructurePropertyNode> RootPropertyNode = MakeShared<FStructurePropertyNode>();
//SET
RootPropertyNode->SetStructure(StructDataProvider);
FPropertyNodeInitParams InitParams;
InitParams.ParentNode = nullptr;
InitParams.Property = nullptr;
InitParams.ArrayOffset = 0;
InitParams.ArrayIndex = INDEX_NONE;
InitParams.bAllowChildren = true;
InitParams.bForceHiddenPropertyVisibility = Parameters.ShouldForcePropertyVisible() || FPropertySettings::Get().ShowHiddenProperties();
InitParams.bCreateCategoryNodes = PropertyName == NAME_None;
Parameters.OverrideAllowChildren(InitParams.bAllowChildren);
Parameters.OverrideCreateCategoryNodes(InitParams.bCreateCategoryNodes);
RootPropertyNode->InitNode(InitParams);
ParentCategory->GetParentLayoutImpl()->AddExternalRootPropertyNode(RootPropertyNode);
if (PropertyName != NAME_None)
{
TSharedPtr<FPropertyNode> PropertyNode = RootPropertyNode->GenerateSingleChild(PropertyName);
if (PropertyNode.IsValid())
{
PropertyNode->RebuildChildren();
OutCustomization.PropertyRow = MakeShared<FDetailPropertyRow>(PropertyNode, ParentCategory, RootPropertyNode);
OutCustomization.PropertyRow->SetCustomExpansionId(Parameters.GetUniqueId());
}
}
else
{
OutCustomization.PropertyRow = MakeShared<FDetailPropertyRow>(RootPropertyNode, ParentCategory, RootPropertyNode);
OutCustomization.PropertyRow->SetCustomExpansionId(Parameters.GetUniqueId());
}
MakeExternalStructPropertyRowCustomization<>(
StructDataProvider,
StructDataProvider->GetBaseStructure(),
PropertyName,
ParentCategory,
OutCustomization,
Parameters,
/* bAllowChildren= */ true
);
}
void FDetailPropertyRow::MakeExternalPropertyRowCustomization(const TArray<UObject*>& InObjects, FName PropertyName, TSharedRef<FDetailCategoryImpl> ParentCategory, struct FDetailLayoutCustomization& OutCustomization, const FAddPropertyParams& Parameters)
@@ -796,6 +785,53 @@ void FDetailPropertyRow::MakeExternalPropertyRowCustomization(const TArray<UObje
ParentCategory->GetParentLayoutImpl()->AddExternalRootPropertyNode(RootPropertyNode);
}
void FDetailPropertyRow::MakeChildPropertyRowCustomization(TSharedRef<IPropertyHandle> PropertyHandle,
TSharedPtr<IStructureDataProvider> StructDataProvider, FName PropertyName, TSharedRef<FDetailCategoryImpl> ParentCategory,
FDetailLayoutCustomization& OutCustomization, const FAddPropertyParams& Parameters, const FText& DisplayNameOverride)
{
TSharedRef<FPropertyHandleBase> PropertyHandleImpl = StaticCastSharedRef<FPropertyHandleBase>(PropertyHandle);
TSharedPtr<FStructurePropertyNode> RootPropertyNode = StaticCastSharedPtr<FStructurePropertyNode>(PropertyHandleImpl->GetPropertyNode());
if (PropertyName != NAME_None)
{
TSharedPtr<FPropertyNode> PropertyNode = RootPropertyNode->GenerateSingleChild(PropertyName);
if (PropertyNode.IsValid())
{
PropertyNode->RebuildChildren();
OutCustomization.PropertyRow = MakeShared<FDetailPropertyRow>(PropertyNode, ParentCategory);
OutCustomization.PropertyRow->SetCustomExpansionId(Parameters.GetUniqueId());
}
}
else
{
// Generate a node for the struct
TSharedRef<FStructurePropertyNode> StructPropertyNode = MakeShared<FStructurePropertyNode>();
StructPropertyNode->SetStructure(StructDataProvider);
StructPropertyNode->SetDisplayNameOverride(DisplayNameOverride);
// Make a "fake" struct property to represent the entire struct
static const FName PropertyEditorModuleName("PropertyEditor");
FPropertyEditorModule& PropertyEditorModule = FModuleManager::GetModuleChecked<FPropertyEditorModule>(PropertyEditorModuleName);
FStructProperty* StructProperty = PropertyEditorModule.RegisterStructProperty(StructDataProvider->GetBaseStructure());
FPropertyNodeInitParams ItemNodeInitParams;
ItemNodeInitParams.ParentNode = RootPropertyNode;
ItemNodeInitParams.Property = StructProperty;
ItemNodeInitParams.ArrayOffset = 0;
ItemNodeInitParams.ArrayIndex = INDEX_NONE;
ItemNodeInitParams.bAllowChildren = true;
ItemNodeInitParams.bForceHiddenPropertyVisibility = Parameters.ShouldForcePropertyVisible() || FPropertySettings::Get().ShowHiddenProperties();
ItemNodeInitParams.bCreateCategoryNodes = false;
StructPropertyNode->InitNode(ItemNodeInitParams);
RootPropertyNode->AddChildNode(StructPropertyNode);
OutCustomization.PropertyRow = MakeShared<FDetailPropertyRow>(StructPropertyNode, ParentCategory);
OutCustomization.PropertyRow->SetCustomExpansionId(Parameters.GetUniqueId());
}
}
EVisibility FDetailPropertyRow::GetPropertyVisibility() const
{
if (IsOnlyVisibleWhenEditConditionMet() && !IsEditConditionMet())