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c1a47beb57
Like the static mesh editor the property edited in that category are not transacted but the apply is. Some change to the property editor module where needed for this. 1- IDetailCategoryBuilder::AddAllExternalStructureProperties can now optionally output the IDetailPropertyRow interface of the properties added. 2- The non customized (and non external) children of a FDetailPropertyRow now respect the propagate to children property of the CustomResetToDefault. #rb Graham.Wihlidal #preflight 629eb995f73a9b013d7a7d30 #ROBOMERGE-AUTHOR: julien.stjean #ROBOMERGE-SOURCE: CL 20537372 via CL 20537382 via CL 20537390 #ROBOMERGE-BOT: UE5 (Release-Engine-Staging -> Main) (v954-20466795) [CL 20540874 by julien stjean in ue5-main branch]
933 lines
31 KiB
C++
933 lines
31 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#include "DetailPropertyRow.h"
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#include "CategoryPropertyNode.h"
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#include "CustomChildBuilder.h"
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#include "DetailCategoryGroupNode.h"
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#include "DetailItemNode.h"
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#include "DetailWidgetRow.h"
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#include "ItemPropertyNode.h"
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#include "ObjectPropertyNode.h"
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#include "ObjectPropertyNode.h"
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#include "PropertyCustomizationHelpers.h"
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#include "PropertyEditorHelpers.h"
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#include "StructurePropertyNode.h"
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#include "Modules/ModuleManager.h"
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#include "Widgets/Layout/SSpacer.h"
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#define LOCTEXT_NAMESPACE "DetailPropertyRow"
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FDetailPropertyRow::FDetailPropertyRow(TSharedPtr<FPropertyNode> InPropertyNode, TSharedRef<FDetailCategoryImpl> InParentCategory, TSharedPtr<FComplexPropertyNode> InExternalRootNode)
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: CustomIsEnabledAttrib( true )
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, PropertyNode( InPropertyNode )
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, ParentCategory( InParentCategory )
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, ExternalRootNode( InExternalRootNode )
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, bShowPropertyButtons( true )
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, bShowCustomPropertyChildren( true )
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, bForceAutoExpansion( false )
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, bCachedCustomTypeInterface(false)
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{
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PropertyHandle = InParentCategory->GetParentLayoutImpl().GetPropertyHandle(PropertyNode);
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if (PropertyNode.IsValid())
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{
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TSharedRef<FPropertyNode> PropertyNodeRef = PropertyNode.ToSharedRef();
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const TSharedRef<IPropertyUtilities> Utilities = InParentCategory->GetParentLayoutImpl().GetPropertyUtilities();
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if (PropertyNode->AsCategoryNode() == nullptr)
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{
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MakePropertyEditor(PropertyNodeRef, Utilities, PropertyEditor);
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}
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if (PropertyNode->AsObjectNode() && ExternalRootNode.IsValid())
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{
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// We are showing an entirely different object inline. Generate a layout for it now.
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if (IDetailsViewPrivate* DetailsView = InParentCategory->GetDetailsView())
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{
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ExternalObjectLayout = MakeShared<FDetailLayoutData>();
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DetailsView->UpdateSinglePropertyMap(InExternalRootNode, *ExternalObjectLayout, true);
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}
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}
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if (PropertyNode->GetPropertyKeyNode().IsValid())
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{
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TSharedPtr<IPropertyTypeCustomization> FoundPropertyCustomisation = GetPropertyCustomization(PropertyNode->GetPropertyKeyNode().ToSharedRef(), ParentCategory.Pin().ToSharedRef());
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bool bInlineRow = FoundPropertyCustomisation != nullptr ? FoundPropertyCustomisation->ShouldInlineKey() : false;
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static FName InlineKeyMeta("ForceInlineRow");
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bInlineRow |= InPropertyNode->GetParentNode()->GetProperty()->HasMetaData(InlineKeyMeta);
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// Only create the property editor if it's not a struct or if it requires to be inlined (and has customization)
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if (!NeedsKeyNode(PropertyNodeRef, InParentCategory) || (bInlineRow && FoundPropertyCustomisation != nullptr))
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{
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CachedKeyCustomTypeInterface = FoundPropertyCustomisation;
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MakePropertyEditor(PropertyNode->GetPropertyKeyNode().ToSharedRef(), Utilities, PropertyKeyEditor);
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}
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}
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}
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}
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bool FDetailPropertyRow::NeedsKeyNode(TSharedRef<FPropertyNode> InPropertyNode, TSharedRef<FDetailCategoryImpl> InParentCategory)
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{
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FStructProperty* KeyStructProp = CastField<FStructProperty>(InPropertyNode->GetPropertyKeyNode()->GetProperty());
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return KeyStructProp != nullptr;
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}
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IDetailPropertyRow& FDetailPropertyRow::DisplayName( const FText& InDisplayName )
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{
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if (PropertyNode.IsValid())
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{
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PropertyNode->SetDisplayNameOverride( InDisplayName );
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}
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return *this;
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}
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IDetailPropertyRow& FDetailPropertyRow::ToolTip( const FText& InToolTip )
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{
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if (PropertyNode.IsValid())
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{
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PropertyNode->SetToolTipOverride( InToolTip );
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}
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return *this;
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}
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IDetailPropertyRow& FDetailPropertyRow::ShowPropertyButtons( bool bInShowPropertyButtons )
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{
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bShowPropertyButtons = bInShowPropertyButtons;
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return *this;
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}
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IDetailPropertyRow& FDetailPropertyRow::EditCondition( TAttribute<bool> EditConditionValue, FOnBooleanValueChanged OnEditConditionValueChanged )
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{
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CustomEditConditionValue = EditConditionValue;
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CustomEditConditionValueChanged = OnEditConditionValueChanged;
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return *this;
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}
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IDetailPropertyRow& FDetailPropertyRow::IsEnabled( TAttribute<bool> InIsEnabled )
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{
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CustomIsEnabledAttrib = InIsEnabled;
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return *this;
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}
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IDetailPropertyRow& FDetailPropertyRow::ShouldAutoExpand(bool bInForceExpansion)
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{
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bForceAutoExpansion = bInForceExpansion;
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return *this;
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}
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IDetailPropertyRow& FDetailPropertyRow::Visibility( TAttribute<EVisibility> Visibility )
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{
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PropertyVisibility = Visibility;
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return *this;
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}
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IDetailPropertyRow& FDetailPropertyRow::OverrideResetToDefault(const FResetToDefaultOverride& ResetToDefault)
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{
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CustomResetToDefault = ResetToDefault;
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return *this;
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}
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IDetailPropertyRow& FDetailPropertyRow::DragDropHandler(TSharedPtr<IDetailDragDropHandler> InDragDropHandler)
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{
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CustomDragDropHandler = InDragDropHandler;
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return *this;
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}
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void FDetailPropertyRow::GetDefaultWidgets( TSharedPtr<SWidget>& OutNameWidget, TSharedPtr<SWidget>& OutValueWidget, bool bAddWidgetDecoration )
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{
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FDetailWidgetRow Row;
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GetDefaultWidgets(OutNameWidget, OutValueWidget, Row, bAddWidgetDecoration);
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}
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void FDetailPropertyRow::GetDefaultWidgets( TSharedPtr<SWidget>& OutNameWidget, TSharedPtr<SWidget>& OutValueWidget, FDetailWidgetRow& Row, bool bAddWidgetDecoration )
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{
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TSharedPtr<FDetailWidgetRow> CustomTypeRow;
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TSharedPtr<IPropertyTypeCustomization>& CustomTypeInterface = GetTypeInterface();
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if ( CustomTypeInterface.IsValid() )
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{
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CustomTypeRow = MakeShareable(new FDetailWidgetRow);
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CustomTypeInterface->CustomizeHeader(PropertyHandle.ToSharedRef(), *CustomTypeRow, *this);
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}
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SetWidgetRowProperties(Row);
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MakeNameOrKeyWidget(Row, CustomTypeRow);
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MakeValueWidget(Row, CustomTypeRow, bAddWidgetDecoration);
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OutNameWidget = Row.NameWidget.Widget;
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OutValueWidget = Row.ValueWidget.Widget;
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}
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bool FDetailPropertyRow::HasColumns() const
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{
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// Regular properties always have columns
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return !CustomPropertyWidget.IsValid() || CustomPropertyWidget->HasColumns();
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}
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bool FDetailPropertyRow::ShowOnlyChildren() const
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{
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return bForceShowOnlyChildren || (PropertyTypeLayoutBuilder.IsValid() && CustomPropertyWidget.IsValid() && !CustomPropertyWidget->HasAnyContent());
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}
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bool FDetailPropertyRow::RequiresTick() const
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{
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return PropertyVisibility.IsBound() ||
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(PropertyEditor.IsValid() && PropertyEditor->IsOnlyVisibleWhenEditConditionMet());
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}
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FDetailWidgetRow& FDetailPropertyRow::CustomWidget( bool bShowChildren )
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{
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bShowCustomPropertyChildren = bShowChildren;
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CustomPropertyWidget = MakeShareable( new FDetailWidgetRow );
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return *CustomPropertyWidget;
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}
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FDetailWidgetDecl* FDetailPropertyRow::CustomNameWidget()
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{
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return CustomPropertyWidget.IsValid() ? &CustomPropertyWidget->NameContent() : nullptr;
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}
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FDetailWidgetDecl* FDetailPropertyRow::CustomValueWidget()
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{
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return CustomPropertyWidget.IsValid() ? &CustomPropertyWidget->ValueContent() : nullptr;
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}
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TSharedPtr<FAssetThumbnailPool> FDetailPropertyRow::GetThumbnailPool() const
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{
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TSharedPtr<FDetailCategoryImpl> ParentCategoryPinned = ParentCategory.Pin();
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return ParentCategoryPinned.IsValid() ? ParentCategoryPinned->GetParentLayout().GetThumbnailPool() : NULL;
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}
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TSharedPtr<IPropertyUtilities> FDetailPropertyRow::GetPropertyUtilities() const
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{
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TSharedPtr<FDetailCategoryImpl> ParentCategoryPinned = ParentCategory.Pin();
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if (ParentCategoryPinned.IsValid() && ParentCategoryPinned->IsParentLayoutValid())
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{
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return ParentCategoryPinned->GetParentLayout().GetPropertyUtilities();
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}
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return nullptr;
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}
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FDetailWidgetRow FDetailPropertyRow::GetWidgetRow()
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{
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if( HasColumns() )
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{
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FDetailWidgetRow Row;
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SetWidgetRowProperties(Row);
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MakeNameOrKeyWidget( Row, CustomPropertyWidget );
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MakeValueWidget( Row, CustomPropertyWidget );
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return Row;
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}
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else
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{
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return *CustomPropertyWidget;
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}
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}
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static bool IsHeaderRowRequired(const TSharedPtr<IPropertyHandle>& PropertyHandle)
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{
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TSharedPtr<IPropertyHandle> ParentHandle = PropertyHandle->GetParentHandle();
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while (ParentHandle.IsValid())
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{
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if (ParentHandle->AsMap().IsValid())
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{
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return true;
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}
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ParentHandle = ParentHandle->GetParentHandle();
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}
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return false;
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}
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static void FixEmptyHeaderRowInContainers(const TSharedPtr<IPropertyHandle>& PropertyHandle, const TSharedPtr<FDetailWidgetRow>& HeaderRow)
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{
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if (IsHeaderRowRequired(PropertyHandle))
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{
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if (!HeaderRow->HasAnyContent())
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{
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if (!HeaderRow->HasNameContent())
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{
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HeaderRow->NameContent()
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[
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PropertyHandle->CreatePropertyNameWidget()
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];
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}
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if (!HeaderRow->HasValueContent())
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{
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HeaderRow->ValueContent()
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[
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PropertyHandle->CreatePropertyValueWidget(false)
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];
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}
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}
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}
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}
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void FDetailPropertyRow::OnItemNodeInitialized( TSharedRef<FDetailCategoryImpl> InParentCategory, const TAttribute<bool>& InIsParentEnabled, TSharedPtr<IDetailGroup> InParentGroup)
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{
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IsParentEnabled = InIsParentEnabled;
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TSharedPtr<IPropertyTypeCustomization>& CustomTypeInterface = GetTypeInterface();
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// Don't customize the user already customized
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if (!CustomPropertyWidget.IsValid() && CustomTypeInterface.IsValid())
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{
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CustomPropertyWidget = MakeShareable(new FDetailWidgetRow);
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CustomTypeInterface->CustomizeHeader(PropertyHandle.ToSharedRef(), *CustomPropertyWidget, *this);
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FixEmptyHeaderRowInContainers(PropertyHandle, CustomPropertyWidget);
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// set initial value of enabled attribute to settings from struct customization
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if (CustomPropertyWidget->IsEnabledAttr.IsSet())
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{
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CustomIsEnabledAttrib = CustomPropertyWidget->IsEnabledAttr;
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}
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// set initial value of auto-expand from struct customization
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if (CustomPropertyWidget->ForceAutoExpansion.IsSet())
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{
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bForceAutoExpansion = CustomPropertyWidget->ForceAutoExpansion.GetValue();
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}
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}
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if( bShowCustomPropertyChildren && CustomTypeInterface.IsValid() )
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{
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PropertyTypeLayoutBuilder = MakeShareable(new FCustomChildrenBuilder(InParentCategory, InParentGroup));
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/** Does this row pass its custom reset behavior to its children? */
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if (CustomResetToDefault.IsSet() && CustomResetToDefault->PropagatesToChildren())
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{
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PropertyTypeLayoutBuilder->OverrideResetChildrenToDefault(CustomResetToDefault.GetValue());
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}
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CustomTypeInterface->CustomizeChildren(PropertyHandle.ToSharedRef(), *PropertyTypeLayoutBuilder, *this);
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}
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}
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void FDetailPropertyRow::OnGenerateChildren( FDetailNodeList& OutChildren )
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{
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if (PropertyNode->AsCategoryNode() && PropertyNode->GetParentNode() && !PropertyNode->GetParentNode()->AsObjectNode())
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{
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// This is a sub-category. Populate from SubCategory builder
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TSharedRef<FDetailCategoryImpl> ParentCategoryRef = ParentCategory.Pin().ToSharedRef();
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FDetailLayoutBuilderImpl& LayoutBuilder = ParentCategoryRef->GetParentLayoutImpl();
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TSharedPtr<FDetailCategoryImpl> MyCategory = LayoutBuilder.GetSubCategoryImpl(PropertyNode->AsCategoryNode()->GetCategoryName());
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if(MyCategory.IsValid())
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{
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MyCategory->GenerateLayout();
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// Ignore the header of the category by just getting the categories children directly. We are the header in this case.
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// Also ignore visibility here as we dont have a filter yet and the children will be filtered later anyway
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const bool bIgnoreVisibility = true;
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const bool bIgnoreAdvancedDropdown = true;
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MyCategory->GetGeneratedChildren(OutChildren, bIgnoreVisibility, bIgnoreAdvancedDropdown);
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}
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else
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{
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// Fall back to the default if we can't find the category implementation
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GenerateChildrenForPropertyNode(PropertyNode, OutChildren);
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}
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}
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else if (PropertyNode->AsCategoryNode() || PropertyNode->GetProperty() || ExternalObjectLayout.IsValid())
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{
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GenerateChildrenForPropertyNode( PropertyNode, OutChildren );
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}
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}
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void FDetailPropertyRow::GenerateChildrenForPropertyNode( TSharedPtr<FPropertyNode>& RootPropertyNode, FDetailNodeList& OutChildren )
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{
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// Children should be disabled if we are disabled
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TAttribute<bool> ParentEnabledState = TAttribute<bool>::CreateSP(this, &FDetailPropertyRow::GetEnabledState);
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if( PropertyTypeLayoutBuilder.IsValid() && bShowCustomPropertyChildren )
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{
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const TArray< FDetailLayoutCustomization >& ChildRows = PropertyTypeLayoutBuilder->GetChildCustomizations();
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for( int32 ChildIndex = 0; ChildIndex < ChildRows.Num(); ++ChildIndex )
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{
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TSharedRef<FDetailItemNode> ChildNodeItem = MakeShareable( new FDetailItemNode( ChildRows[ChildIndex], ParentCategory.Pin().ToSharedRef(), ParentEnabledState ) );
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ChildNodeItem->Initialize();
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OutChildren.Add( ChildNodeItem );
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}
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}
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else if (ExternalObjectLayout.IsValid() && ExternalObjectLayout->DetailLayout->HasDetails())
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{
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OutChildren.Append(ExternalObjectLayout->DetailLayout->GetAllRootTreeNodes());
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}
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else if ((bShowCustomPropertyChildren || !CustomPropertyWidget.IsValid()) && RootPropertyNode->GetNumChildNodes() > 0)
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{
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TSharedRef<FDetailCategoryImpl> ParentCategoryRef = ParentCategory.Pin().ToSharedRef();
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IDetailLayoutBuilder& LayoutBuilder = ParentCategoryRef->GetParentLayout();
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FProperty* ParentProperty = RootPropertyNode->GetProperty();
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const bool bStructProperty = ParentProperty && ParentProperty->IsA<FStructProperty>();
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const bool bMapProperty = ParentProperty && ParentProperty->IsA<FMapProperty>();
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const bool bSetProperty = ParentProperty && ParentProperty->IsA<FSetProperty>();
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for( int32 ChildIndex = 0; ChildIndex < RootPropertyNode->GetNumChildNodes(); ++ChildIndex )
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{
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TSharedPtr<FPropertyNode> ChildNode = RootPropertyNode->GetChildNode(ChildIndex);
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if (!LayoutBuilder.IsPropertyPathAllowed(ChildNode->GetPropertyPath()))
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{
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ChildNode->SetNodeFlags( EPropertyNodeFlags::RequiresValidation, false);
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ChildNode->SetNodeFlags( EPropertyNodeFlags::IsBeingFiltered | EPropertyNodeFlags::SkipChildValidation, true);
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continue;
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}
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if( ChildNode.IsValid() && ChildNode->HasNodeFlags( EPropertyNodeFlags::IsCustomized ) == 0 )
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{
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if( ChildNode->AsObjectNode() )
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{
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// Skip over object nodes and generate their children. Object nodes are not visible
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GenerateChildrenForPropertyNode( ChildNode, OutChildren );
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}
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// Only struct children can have custom visibility that is different from their parent.
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else if ( !bStructProperty || LayoutBuilder.IsPropertyVisible(FPropertyAndParent(ChildNode.ToSharedRef())) )
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{
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TArray<TSharedRef<FDetailTreeNode>> PropNodes;
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bool bHasKeyNode = false;
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// Create and initialize the child first
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FDetailLayoutCustomization Customization;
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Customization.PropertyRow = MakeShareable(new FDetailPropertyRow(ChildNode, ParentCategoryRef));
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if (CustomResetToDefault.IsSet() && CustomResetToDefault->PropagatesToChildren())
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{
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Customization.PropertyRow->OverrideResetToDefault(CustomResetToDefault.GetValue());
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}
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TSharedRef<FDetailItemNode> ChildNodeItem = MakeShareable(new FDetailItemNode(Customization, ParentCategoryRef, ParentEnabledState));
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ChildNodeItem->Initialize();
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if ( ChildNode->GetPropertyKeyNode().IsValid() )
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{
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// If the child has a key property, only create a second node for the key if the child did not already create a property
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// editor for it
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if ( !Customization.PropertyRow->PropertyKeyEditor.IsValid() )
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{
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FDetailLayoutCustomization KeyCustom;
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KeyCustom.PropertyRow = MakeShareable(new FDetailPropertyRow(ChildNode->GetPropertyKeyNode(), ParentCategoryRef));
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TSharedRef<FDetailItemNode> KeyNodeItem = MakeShareable(new FDetailItemNode(KeyCustom, ParentCategoryRef, ParentEnabledState));
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KeyNodeItem->Initialize();
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PropNodes.Add(KeyNodeItem);
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bHasKeyNode = true;
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}
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}
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// Add the child node
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PropNodes.Add(ChildNodeItem);
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// For set properties, set the name override to match the index
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if (bSetProperty)
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{
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ChildNode->SetDisplayNameOverride(FText::AsNumber(ChildIndex));
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}
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if (bMapProperty && bHasKeyNode)
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{
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// Group the key/value nodes for map properties
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static FText KeyValueGroupNameFormat = LOCTEXT("KeyValueGroupName", "Element {0}");
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FText KeyValueGroupName = FText::Format(KeyValueGroupNameFormat, ChildIndex);
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TSharedRef<FDetailCategoryGroupNode> KeyValueGroupNode = MakeShared<FDetailCategoryGroupNode>(FName(*KeyValueGroupName.ToString()), ParentCategoryRef);
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KeyValueGroupNode->SetChildren(PropNodes);
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KeyValueGroupNode->SetShowBorder(false);
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KeyValueGroupNode->SetHasSplitter(true);
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OutChildren.Add(KeyValueGroupNode);
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}
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else
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{
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OutChildren.Append(PropNodes);
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}
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}
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}
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}
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}
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}
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FName FDetailPropertyRow::GetRowName() const
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{
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if (HasExternalProperty())
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{
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if (GetCustomExpansionId() != NAME_None)
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{
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return GetCustomExpansionId();
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}
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else if (FProperty* ExternalRootProperty = ExternalRootNode->GetProperty())
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{
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return ExternalRootProperty->GetFName();
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}
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}
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if (GetPropertyNode())
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{
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if (FProperty* Property = GetPropertyNode()->GetProperty())
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{
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return Property->GetFName();
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}
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}
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return NAME_None;
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}
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TSharedRef<FPropertyEditor> FDetailPropertyRow::MakePropertyEditor(const TSharedRef<FPropertyNode>& InPropertyNode, const TSharedRef<IPropertyUtilities>& PropertyUtilities, TSharedPtr<FPropertyEditor>& InEditor )
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{
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if( !InEditor.IsValid() )
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{
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InEditor = FPropertyEditor::Create( InPropertyNode, PropertyUtilities );
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}
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return InEditor.ToSharedRef();
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}
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TSharedPtr<IPropertyTypeCustomization> FDetailPropertyRow::GetPropertyCustomization(const TSharedRef<FPropertyNode>& InPropertyNode, const TSharedRef<FDetailCategoryImpl>& InParentCategory)
|
|
{
|
|
TSharedPtr<IPropertyTypeCustomization> CustomInterface;
|
|
|
|
if (!PropertyEditorHelpers::IsStaticArray(*InPropertyNode))
|
|
{
|
|
FProperty* Property = InPropertyNode->GetProperty();
|
|
TSharedPtr<IPropertyHandle> PropHandle = InParentCategory->GetParentLayoutImpl().GetPropertyHandle(InPropertyNode);
|
|
|
|
static FName NAME_PropertyEditor("PropertyEditor");
|
|
FPropertyEditorModule& PropertyEditorModule = FModuleManager::GetModuleChecked<FPropertyEditorModule>(NAME_PropertyEditor);
|
|
|
|
FPropertyTypeLayoutCallback LayoutCallback = PropertyEditorModule.GetPropertyTypeCustomization(Property, *PropHandle, InParentCategory->GetCustomPropertyTypeLayoutMap() );
|
|
if (LayoutCallback.IsValid())
|
|
{
|
|
if (PropHandle->IsValidHandle())
|
|
{
|
|
CustomInterface = LayoutCallback.GetCustomizationInstance();
|
|
}
|
|
}
|
|
}
|
|
|
|
return CustomInterface;
|
|
}
|
|
|
|
void FDetailPropertyRow::MakeExternalPropertyRowCustomization(TSharedPtr<FStructOnScope> StructData, FName PropertyName, TSharedRef<FDetailCategoryImpl> ParentCategory, FDetailLayoutCustomization& OutCustomization, const FAddPropertyParams& Parameters)
|
|
{
|
|
TSharedRef<FStructurePropertyNode> RootPropertyNode = MakeShared<FStructurePropertyNode>();
|
|
|
|
//SET
|
|
RootPropertyNode->SetStructure(StructData);
|
|
|
|
FPropertyNodeInitParams InitParams;
|
|
InitParams.ParentNode = nullptr;
|
|
InitParams.Property = nullptr;
|
|
InitParams.ArrayOffset = 0;
|
|
InitParams.ArrayIndex = INDEX_NONE;
|
|
InitParams.bForceHiddenPropertyVisibility = Parameters.ShouldForcePropertyVisible() || FPropertySettings::Get().ShowHiddenProperties();
|
|
InitParams.bCreateCategoryNodes = false;
|
|
InitParams.bAllowChildren = false;
|
|
|
|
Parameters.OverrideAllowChildren(InitParams.bAllowChildren);
|
|
Parameters.OverrideCreateCategoryNodes(InitParams.bCreateCategoryNodes);
|
|
|
|
RootPropertyNode->InitNode(InitParams);
|
|
|
|
ParentCategory->GetParentLayoutImpl().AddExternalRootPropertyNode(RootPropertyNode);
|
|
|
|
if (PropertyName != NAME_None)
|
|
{
|
|
RootPropertyNode->RebuildChildren();
|
|
|
|
for (int32 ChildIdx = 0; ChildIdx < RootPropertyNode->GetNumChildNodes(); ++ChildIdx)
|
|
{
|
|
TSharedPtr< FPropertyNode > PropertyNode = RootPropertyNode->GetChildNode(ChildIdx);
|
|
if (FProperty* Property = PropertyNode->GetProperty())
|
|
{
|
|
if (Property->GetFName() == PropertyName)
|
|
{
|
|
OutCustomization.PropertyRow = MakeShareable(new FDetailPropertyRow(PropertyNode, ParentCategory, RootPropertyNode));
|
|
OutCustomization.PropertyRow->SetCustomExpansionId(Parameters.GetUniqueId());
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
static const FName PropertyEditorModuleName("PropertyEditor");
|
|
FPropertyEditorModule& PropertyEditorModule = FModuleManager::GetModuleChecked<FPropertyEditorModule>(PropertyEditorModuleName);
|
|
|
|
// Make a "fake" struct property to represent the entire struct
|
|
FStructProperty* StructProperty = PropertyEditorModule.RegisterStructOnScopeProperty(StructData.ToSharedRef());
|
|
|
|
// Generate a node for the struct
|
|
TSharedPtr<FItemPropertyNode> ItemNode = MakeShared<FItemPropertyNode>();
|
|
|
|
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;
|
|
|
|
ItemNode->InitNode(ItemNodeInitParams);
|
|
|
|
RootPropertyNode->AddChildNode(ItemNode);
|
|
|
|
OutCustomization.PropertyRow = MakeShareable(new FDetailPropertyRow(ItemNode, ParentCategory, RootPropertyNode));
|
|
OutCustomization.PropertyRow->SetCustomExpansionId(Parameters.GetUniqueId());
|
|
}
|
|
}
|
|
|
|
void FDetailPropertyRow::MakeExternalPropertyRowCustomization(const TArray<UObject*>& InObjects, FName PropertyName, TSharedRef<FDetailCategoryImpl> ParentCategory, struct FDetailLayoutCustomization& OutCustomization, const FAddPropertyParams& Parameters)
|
|
{
|
|
TSharedRef<FObjectPropertyNode> RootPropertyNode = MakeShared<FObjectPropertyNode>();
|
|
|
|
for (UObject* Object : InObjects)
|
|
{
|
|
RootPropertyNode->AddObject(Object);
|
|
}
|
|
|
|
FPropertyNodeInitParams InitParams;
|
|
InitParams.ParentNode = nullptr;
|
|
InitParams.Property = nullptr;
|
|
InitParams.ArrayOffset = 0;
|
|
InitParams.ArrayIndex = INDEX_NONE;
|
|
InitParams.bAllowChildren = false;
|
|
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())
|
|
{
|
|
RootPropertyNode->AddChildNode(PropertyNode);
|
|
|
|
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());
|
|
}
|
|
}
|
|
|
|
EVisibility FDetailPropertyRow::GetPropertyVisibility() const
|
|
{
|
|
if (PropertyEditor.IsValid() && PropertyEditor->IsOnlyVisibleWhenEditConditionMet() && !PropertyEditor->IsEditConditionMet())
|
|
{
|
|
return EVisibility::Collapsed;
|
|
}
|
|
|
|
return PropertyVisibility.Get();
|
|
}
|
|
|
|
bool FDetailPropertyRow::HasEditCondition() const
|
|
{
|
|
return (PropertyEditor.IsValid() && PropertyEditor->HasEditCondition()) || CustomEditConditionValue.IsSet();
|
|
}
|
|
|
|
bool FDetailPropertyRow::GetEnabledState() const
|
|
{
|
|
bool Result = IsParentEnabled.Get(true);
|
|
|
|
Result = Result && CustomIsEnabledAttrib.Get(true);
|
|
|
|
if (HasEditCondition())
|
|
{
|
|
if (CustomEditConditionValue.IsSet())
|
|
{
|
|
Result = Result && CustomEditConditionValue.Get();
|
|
}
|
|
else if (PropertyEditor.IsValid())
|
|
{
|
|
Result = Result && PropertyEditor->IsEditConditionMet();
|
|
}
|
|
}
|
|
|
|
return Result;
|
|
}
|
|
|
|
TSharedPtr<IPropertyTypeCustomization>& FDetailPropertyRow::GetTypeInterface()
|
|
{
|
|
if (!bCachedCustomTypeInterface)
|
|
{
|
|
if (PropertyNode.IsValid() && ParentCategory.IsValid())
|
|
{
|
|
CachedCustomTypeInterface = GetPropertyCustomization(PropertyNode.ToSharedRef(), ParentCategory.Pin().ToSharedRef());
|
|
}
|
|
bCachedCustomTypeInterface = true;
|
|
}
|
|
|
|
return CachedCustomTypeInterface;
|
|
}
|
|
|
|
bool FDetailPropertyRow::GetForceAutoExpansion() const
|
|
{
|
|
return bForceAutoExpansion;
|
|
}
|
|
|
|
static void TogglePropertyEditorEditCondition(bool bValue, TWeakPtr<FPropertyEditor> PropertyEditorWeak)
|
|
{
|
|
TSharedPtr<FPropertyEditor> PropertyEditorPtr = PropertyEditorWeak.Pin();
|
|
if (PropertyEditorPtr.IsValid() && PropertyEditorPtr->IsEditConditionMet() != bValue)
|
|
{
|
|
PropertyEditorPtr->ToggleEditConditionState();
|
|
}
|
|
}
|
|
|
|
static void ExecuteCustomEditConditionToggle(bool bValue, FOnBooleanValueChanged CustomEditConditionToggle, TWeakPtr<FPropertyEditor> PropertyEditorWeak)
|
|
{
|
|
CustomEditConditionToggle.ExecuteIfBound(bValue);
|
|
|
|
TSharedPtr<FPropertyEditor> PropertyEditorPtr = PropertyEditorWeak.Pin();
|
|
if (PropertyEditorPtr.IsValid())
|
|
{
|
|
PropertyEditorPtr->GetPropertyNode()->InvalidateCachedState();
|
|
}
|
|
}
|
|
|
|
void FDetailPropertyRow::SetWidgetRowProperties(FDetailWidgetRow& Row) const
|
|
{
|
|
// set edit condition handlers - use customized if provided
|
|
TAttribute<bool> EditConditionValue = CustomEditConditionValue;
|
|
if (!EditConditionValue.IsSet() && PropertyEditor.IsValid())
|
|
{
|
|
EditConditionValue = TAttribute<bool>(PropertyEditor.ToSharedRef(), &FPropertyEditor::IsEditConditionMet);
|
|
}
|
|
|
|
FOnBooleanValueChanged OnEditConditionValueChanged;
|
|
if (CustomEditConditionValueChanged.IsBound())
|
|
{
|
|
TWeakPtr<FPropertyEditor> PropertyEditorWeak = PropertyEditor;
|
|
OnEditConditionValueChanged = FOnBooleanValueChanged::CreateStatic(&ExecuteCustomEditConditionToggle, CustomEditConditionValueChanged, PropertyEditorWeak);
|
|
}
|
|
else if (PropertyEditor.IsValid() && PropertyEditor->SupportsEditConditionToggle())
|
|
{
|
|
TWeakPtr<FPropertyEditor> PropertyEditorWeak = PropertyEditor;
|
|
OnEditConditionValueChanged = FOnBooleanValueChanged::CreateStatic(&TogglePropertyEditorEditCondition, PropertyEditorWeak);
|
|
}
|
|
|
|
Row.EditCondition(EditConditionValue, OnEditConditionValueChanged);
|
|
Row.IsEnabled(CustomIsEnabledAttrib);
|
|
Row.CustomResetToDefault = CustomResetToDefault;
|
|
Row.CustomDragDropHandler = CustomDragDropHandler;
|
|
Row.PropertyHandles.Add(GetPropertyHandle());
|
|
|
|
// set custom actions and reset to default
|
|
if (CustomPropertyWidget.IsValid())
|
|
{
|
|
Row.CopyMenuAction = CustomPropertyWidget->CopyMenuAction;
|
|
Row.PasteMenuAction = CustomPropertyWidget->PasteMenuAction;
|
|
Row.CustomMenuItems = CustomPropertyWidget->CustomMenuItems;
|
|
|
|
if (CustomPropertyWidget->CustomResetToDefault.IsSet())
|
|
{
|
|
ensureMsgf(!CustomResetToDefault.IsSet(), TEXT("Duplicate reset to default handlers set on both FDetailPropertyRow and CustomWidget()!"));
|
|
Row.CustomResetToDefault = CustomPropertyWidget->CustomResetToDefault;
|
|
}
|
|
}
|
|
}
|
|
|
|
void FDetailPropertyRow::MakeNameOrKeyWidget( FDetailWidgetRow& Row, const TSharedPtr<FDetailWidgetRow> InCustomRow ) const
|
|
{
|
|
EVerticalAlignment VerticalAlignment = VAlign_Center;
|
|
EHorizontalAlignment HorizontalAlignment = HAlign_Fill;
|
|
|
|
// We will only use key widgets for non-struct keys
|
|
const bool bHasKeyNode = PropertyKeyEditor.IsValid() && !PropertyHandle->HasMetaData(TEXT("ReadOnlyKeys"));
|
|
|
|
if (!bHasKeyNode && InCustomRow.IsValid())
|
|
{
|
|
VerticalAlignment = InCustomRow->NameWidget.VerticalAlignment;
|
|
HorizontalAlignment = InCustomRow->NameWidget.HorizontalAlignment;
|
|
}
|
|
|
|
TAttribute<bool> IsEnabledAttrib = TAttribute<bool>::CreateSP( this, &FDetailPropertyRow::GetEnabledState );
|
|
|
|
TSharedRef<SHorizontalBox> NameHorizontalBox = SNew(SHorizontalBox)
|
|
.Clipping(EWidgetClipping::OnDemand);
|
|
|
|
TSharedPtr<SWidget> NameWidget = SNullWidget::NullWidget;
|
|
|
|
// Key nodes take precedence over custom rows
|
|
if (bHasKeyNode)
|
|
{
|
|
// Does this key have a custom type, use it
|
|
if (CachedKeyCustomTypeInterface)
|
|
{
|
|
// Create a widget that will properly represent the key
|
|
const TSharedPtr<FDetailWidgetRow> CustomTypeWidget = MakeShared<FDetailWidgetRow>();
|
|
CachedKeyCustomTypeInterface->CustomizeHeader(PropertyKeyEditor->GetPropertyHandle(), *CustomTypeWidget, const_cast<FDetailPropertyRow&>(*this));
|
|
|
|
NameWidget = CustomTypeWidget->ValueWidget.Widget;
|
|
}
|
|
else
|
|
{
|
|
const TSharedRef<IPropertyUtilities> PropertyUtilities = ParentCategory.Pin()->GetParentLayoutImpl().GetPropertyUtilities();
|
|
|
|
NameWidget =
|
|
SNew(SPropertyValueWidget, PropertyKeyEditor, PropertyUtilities)
|
|
.IsEnabled(IsEnabledAttrib)
|
|
.ShowPropertyButtons(false);
|
|
}
|
|
|
|
}
|
|
else if (InCustomRow.IsValid())
|
|
{
|
|
NameWidget =
|
|
SNew( SBox )
|
|
.IsEnabled( IsEnabledAttrib )
|
|
[
|
|
InCustomRow->NameWidget.Widget
|
|
];
|
|
}
|
|
else if (PropertyEditor.IsValid())
|
|
{
|
|
NameWidget =
|
|
SNew( SPropertyNameWidget, PropertyEditor )
|
|
.IsEnabled( IsEnabledAttrib );
|
|
}
|
|
|
|
SHorizontalBox::FSlot* SlotPointer = nullptr;
|
|
NameHorizontalBox->AddSlot()
|
|
.Expose(SlotPointer)
|
|
[
|
|
NameWidget.ToSharedRef()
|
|
];
|
|
|
|
if (bHasKeyNode)
|
|
{
|
|
SlotPointer->SetPadding(FMargin(0.0f, 0.0f, 2.0f, 0.0f));
|
|
}
|
|
else if (InCustomRow.IsValid())
|
|
{
|
|
// Allow custom name slots to fill all of the area. Eg., the user adds a SHorizontalBox with left and right align slots.
|
|
SlotPointer->SetFillWidth(1.0f);
|
|
}
|
|
else
|
|
{
|
|
SlotPointer->SetAutoWidth();
|
|
}
|
|
|
|
Row.NameContent()
|
|
.HAlign( HorizontalAlignment )
|
|
.VAlign( VerticalAlignment )
|
|
[
|
|
NameHorizontalBox
|
|
];
|
|
}
|
|
|
|
void FDetailPropertyRow::MakeValueWidget( FDetailWidgetRow& Row, const TSharedPtr<FDetailWidgetRow> InCustomRow, bool bAddWidgetDecoration ) const
|
|
{
|
|
EVerticalAlignment VerticalAlignment = VAlign_Center;
|
|
EHorizontalAlignment HorizontalAlignment = HAlign_Left;
|
|
|
|
TOptional<float> MinWidth;
|
|
TOptional<float> MaxWidth;
|
|
|
|
TAttribute<bool> IsEnabledAttrib = TAttribute<bool>::CreateSP( this, &FDetailPropertyRow::GetEnabledState );
|
|
|
|
TSharedRef<SHorizontalBox> ValueWidget =
|
|
SNew( SHorizontalBox )
|
|
.IsEnabled( IsEnabledAttrib );
|
|
|
|
if (InCustomRow.IsValid())
|
|
{
|
|
VerticalAlignment = InCustomRow->ValueWidget.VerticalAlignment;
|
|
HorizontalAlignment = InCustomRow->ValueWidget.HorizontalAlignment;
|
|
MinWidth = InCustomRow->ValueWidget.MinWidth;
|
|
MaxWidth = InCustomRow->ValueWidget.MaxWidth;
|
|
|
|
ValueWidget->AddSlot()
|
|
[
|
|
InCustomRow->ValueWidget.Widget
|
|
];
|
|
|
|
Row
|
|
.ExtensionContent()
|
|
[
|
|
InCustomRow->ExtensionWidget.Widget
|
|
];
|
|
}
|
|
else if (PropertyEditor.IsValid())
|
|
{
|
|
TSharedPtr<SPropertyValueWidget> PropertyValue;
|
|
ValueWidget->AddSlot()
|
|
[
|
|
SAssignNew( PropertyValue, SPropertyValueWidget, PropertyEditor, GetPropertyUtilities() )
|
|
.ShowPropertyButtons( false ) // We handle this ourselves
|
|
];
|
|
|
|
MinWidth = PropertyValue->GetMinDesiredWidth();
|
|
MaxWidth = PropertyValue->GetMaxDesiredWidth();
|
|
}
|
|
|
|
if (bAddWidgetDecoration && PropertyEditor.IsValid())
|
|
{
|
|
if (bShowPropertyButtons)
|
|
{
|
|
TArray< TSharedRef<SWidget> > RequiredButtons;
|
|
PropertyEditorHelpers::MakeRequiredPropertyButtons( PropertyEditor.ToSharedRef(), /*OUT*/RequiredButtons );
|
|
|
|
for( int32 ButtonIndex = 0; ButtonIndex < RequiredButtons.Num(); ++ButtonIndex )
|
|
{
|
|
ValueWidget->AddSlot()
|
|
.AutoWidth()
|
|
.HAlign(HAlign_Left)
|
|
.VAlign(VAlign_Center)
|
|
.Padding(4.0f, 1.0f, 0.0f, 1.0f)
|
|
[
|
|
RequiredButtons[ButtonIndex]
|
|
];
|
|
}
|
|
}
|
|
|
|
// Don't add config hierarchy to container children, can't edit child properties at the hiearchy's per file level
|
|
TSharedPtr<IPropertyHandle> ParentHandle = PropertyHandle->GetParentHandle();
|
|
bool bIsChildProperty = ParentHandle && (ParentHandle->AsArray() || ParentHandle->AsMap() || ParentHandle->AsSet());
|
|
|
|
if (!bIsChildProperty && PropertyHandle->HasMetaData(TEXT("ConfigHierarchyEditable")))
|
|
{
|
|
ValueWidget->AddSlot()
|
|
.AutoWidth()
|
|
.VAlign(VAlign_Center)
|
|
.HAlign(HAlign_Left)
|
|
.Padding(4.0f, 0.0f, 4.0f, 0.0f)
|
|
[
|
|
PropertyCustomizationHelpers::MakeEditConfigHierarchyButton(FSimpleDelegate::CreateSP(PropertyEditor.ToSharedRef(), &FPropertyEditor::EditConfigHierarchy))
|
|
];
|
|
}
|
|
}
|
|
|
|
Row.ValueContent()
|
|
.HAlign( HorizontalAlignment )
|
|
.VAlign( VerticalAlignment )
|
|
.MinDesiredWidth( MinWidth )
|
|
.MaxDesiredWidth( MaxWidth )
|
|
[
|
|
ValueWidget
|
|
];
|
|
}
|
|
|
|
#undef LOCTEXT_NAMESPACE
|