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3beb0cd5f6
This is to support references being set for the skeleton class (in the new BP menu system). #codereview Nick.Whiting [CL 2308582 by Mike Beach in Main branch]
387 lines
13 KiB
C++
387 lines
13 KiB
C++
// Copyright 1998-2014 Epic Games, Inc. All Rights Reserved.
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#include "BlueprintGraphPrivatePCH.h"
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#include "CompilerResultsLog.h"
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#include "DelegateNodeHandlers.h"
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struct FK2Node_BaseMCDelegateHelper
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{
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static FString DelegatePinName;
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};
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FString FK2Node_BaseMCDelegateHelper::DelegatePinName(TEXT("Delegate"));
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/////// UK2Node_BaseMCDelegate ///////////
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UK2Node_BaseMCDelegate::UK2Node_BaseMCDelegate(const class FPostConstructInitializeProperties& PCIP)
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: Super(PCIP)
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{
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}
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void UK2Node_BaseMCDelegate::ValidateNodeDuringCompilation(class FCompilerResultsLog& MessageLog) const
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{
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Super::ValidateNodeDuringCompilation(MessageLog);
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if(UProperty* Property = GetProperty())
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{
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if(!Property->HasAllPropertyFlags(CPF_BlueprintAssignable))
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{
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MessageLog.Error(*FString::Printf(*NSLOCTEXT("K2Node", "BaseMCDelegateNotAssignable", "Event Dispatcher is not 'BlueprintAssignable' @@").ToString()), this);
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}
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}
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}
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bool UK2Node_BaseMCDelegate::IsCompatibleWithGraph(const UEdGraph* TargetGraph) const
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{
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UEdGraphSchema const* Schema = TargetGraph->GetSchema();
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EGraphType GraphType = Schema->GetGraphType(TargetGraph);
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bool const bIsCompatible = (GraphType == GT_Ubergraph) || (GraphType == GT_Function);
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return bIsCompatible&& Super::IsCompatibleWithGraph(TargetGraph);
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}
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UK2Node::ERedirectType UK2Node_BaseMCDelegate::DoPinsMatchForReconstruction(const UEdGraphPin* NewPin, int32 NewPinIndex, const UEdGraphPin* OldPin, int32 OldPinIndex) const
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{
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ERedirectType OrginalResult = Super::DoPinsMatchForReconstruction(NewPin, NewPinIndex, OldPin, OldPinIndex);
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const UEdGraphSchema_K2* K2Schema = GetDefault<UEdGraphSchema_K2>();
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if ((ERedirectType::ERedirectType_None == OrginalResult) && K2Schema && NewPin && OldPin)
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{
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if ((OldPin->PinType.PinCategory == K2Schema->PC_Delegate) &&
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(NewPin->PinType.PinCategory == K2Schema->PC_Delegate) &&
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(FCString::Stricmp(*(NewPin->PinName), *(OldPin->PinName)) == 0))
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{
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return ERedirectType_Name;
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}
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}
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return OrginalResult;
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}
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void UK2Node_BaseMCDelegate::AllocateDefaultPins()
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{
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Super::AllocateDefaultPins();
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const UEdGraphSchema_K2* K2Schema = GetDefault<UEdGraphSchema_K2>();
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CreatePin(EGPD_Input, K2Schema->PC_Exec, TEXT(""), NULL, false, false, K2Schema->PN_Execute);
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CreatePin(EGPD_Output, K2Schema->PC_Exec, TEXT(""), NULL, false, false, K2Schema->PN_Then);
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UClass* PropertyOwnerClass = DelegateReference.GetMemberParentClass(this);
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if (PropertyOwnerClass != nullptr)
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{
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PropertyOwnerClass = PropertyOwnerClass->GetAuthoritativeClass();
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}
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const auto Blueprint = GetBlueprint();
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const bool bUseSelf = Blueprint && (PropertyOwnerClass == Blueprint->GeneratedClass);
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UEdGraphPin* SelfPin = NULL;
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if (bUseSelf)
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{
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SelfPin = CreatePin(EGPD_Input, K2Schema->PC_Object, K2Schema->PSC_Self, NULL, false, false, K2Schema->PN_Self);
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}
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else
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{
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SelfPin = CreatePin(EGPD_Input, K2Schema->PC_Object, TEXT(""), PropertyOwnerClass, false, false, K2Schema->PN_Self);
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}
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if(SelfPin)
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{
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SelfPin->PinFriendlyName = NSLOCTEXT("K2Node", "BaseMCDelegateSelfPinName", "Target");
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}
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}
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UFunction* UK2Node_BaseMCDelegate::GetDelegateSignature(bool bForceNotFromSkelClass) const
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{
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UClass* OwnerClass = DelegateReference.GetMemberParentClass(this);
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if (bForceNotFromSkelClass)
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{
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OwnerClass = (OwnerClass != nullptr) ? OwnerClass->GetAuthoritativeClass() : nullptr;
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}
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else if (UBlueprintGeneratedClass* BpClassOwner = Cast<UBlueprintGeneratedClass>(OwnerClass))
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{
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UBlueprint* DelegateBlueprint = CastChecked<UBlueprint>(BpClassOwner->ClassGeneratedBy);
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// favor the skeleton class, because the generated class may not
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// have the delegate yet (hasn't been compiled with it), or it could
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// be out of date
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OwnerClass = DelegateBlueprint->SkeletonGeneratedClass;
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}
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FMemberReference ReferenceToUse;
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FGuid DelegateGuid;
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if (OwnerClass != nullptr)
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{
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UBlueprint::GetGuidFromClassByFieldName<UFunction>(OwnerClass, DelegateReference.GetMemberName(), DelegateGuid);
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}
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ReferenceToUse.SetDirect(DelegateReference.GetMemberName(), DelegateGuid, OwnerClass, /*bIsConsideredSelfContext =*/false);
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UMulticastDelegateProperty* DelegateProperty = ReferenceToUse.ResolveMember<UMulticastDelegateProperty>(this);
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return (DelegateProperty != NULL) ? DelegateProperty->SignatureFunction : NULL;
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}
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UEdGraphPin* UK2Node_BaseMCDelegate::GetDelegatePin() const
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{
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return FindPin(FK2Node_BaseMCDelegateHelper::DelegatePinName);
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}
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FString UK2Node_BaseMCDelegate::GetDocumentationLink() const
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{
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UClass* ParentClass = NULL;
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if (DelegateReference.IsSelfContext())
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{
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if (HasValidBlueprint())
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{
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UField* Delegate = FindField<UField>(GetBlueprint()->GeneratedClass, DelegateReference.GetMemberName());
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if (Delegate != NULL)
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{
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ParentClass = Delegate->GetOwnerClass();
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}
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}
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}
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else
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{
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ParentClass = DelegateReference.GetMemberParentClass(this);
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}
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if ( ParentClass != NULL )
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{
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return FString( TEXT("Shared/") ) + ParentClass->GetName();
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}
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return TEXT("");
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}
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FString UK2Node_BaseMCDelegate::GetDocumentationExcerptName() const
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{
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return DelegateReference.GetMemberName().ToString();
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}
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void UK2Node_BaseMCDelegate::ExpandNode(class FKismetCompilerContext& CompilerContext, UEdGraph* SourceGraph)
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{
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Super::ExpandNode(CompilerContext, SourceGraph);
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const bool bAllowMultipleSelfs = AllowMultipleSelfs(true);
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if(bAllowMultipleSelfs && CompilerContext.bIsFullCompile)
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{
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const UEdGraphSchema_K2* Schema = CompilerContext.GetSchema();
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check(Schema);
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UEdGraphPin* MultiSelf = Schema->FindSelfPin(*this, EEdGraphPinDirection::EGPD_Input);
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check(MultiSelf);
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const bool bProperInputToExpandForEach =
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(MultiSelf->LinkedTo.Num()) &&
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(NULL != MultiSelf->LinkedTo[0]) &&
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(MultiSelf->LinkedTo[0]->PinType.bIsArray);
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if(bProperInputToExpandForEach)
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{
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if(MultiSelf->LinkedTo.Num() > 1)
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{
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CompilerContext.MessageLog.Error(*FString::Printf(*NSLOCTEXT("K2Node", "BaseMCDelegateMultiArray", "Event Dispatcher does not accept multi-array-self @@").ToString()), this);
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}
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else
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{
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UK2Node_CallFunction::CallForEachElementInArrayExpansion(this, MultiSelf, CompilerContext, SourceGraph);
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}
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}
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}
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}
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bool UK2Node_BaseMCDelegate::IsAuthorityOnly() const
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{
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const UMulticastDelegateProperty* DelegateProperty = DelegateReference.ResolveMember<UMulticastDelegateProperty>(this);
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return DelegateProperty && DelegateProperty->HasAnyPropertyFlags(CPF_BlueprintAuthorityOnly);
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}
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bool UK2Node_BaseMCDelegate::HasExternalBlueprintDependencies(TArray<class UStruct*>* OptionalOutput) const
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{
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const UClass* SourceClass = DelegateReference.GetMemberParentClass(this);
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const UBlueprint* SourceBlueprint = GetBlueprint();
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const bool bResult = (SourceClass != NULL) && (SourceClass->ClassGeneratedBy != NULL) && (SourceClass->ClassGeneratedBy != SourceBlueprint);
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if (bResult && OptionalOutput)
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{
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OptionalOutput->Add(GetDelegateSignature());
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}
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return bResult || Super::HasExternalBlueprintDependencies(OptionalOutput);
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}
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void UK2Node_BaseMCDelegate::GetNodeAttributes( TArray<TKeyValuePair<FString, FString>>& OutNodeAttributes ) const
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{
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OutNodeAttributes.Add( TKeyValuePair<FString, FString>( TEXT( "Type" ), TEXT( "EventDelegate" ) ));
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OutNodeAttributes.Add( TKeyValuePair<FString, FString>( TEXT( "Class" ), GetClass()->GetName() ));
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OutNodeAttributes.Add( TKeyValuePair<FString, FString>( TEXT( "Name" ), GetPropertyName().ToString() ));
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}
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/////// UK2Node_AddDelegate ///////////
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UK2Node_AddDelegate::UK2Node_AddDelegate(const class FPostConstructInitializeProperties& PCIP)
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: Super(PCIP)
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{
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}
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void UK2Node_AddDelegate::AllocateDefaultPins()
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{
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Super::AllocateDefaultPins();
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const UEdGraphSchema_K2* K2Schema = GetDefault<UEdGraphSchema_K2>();
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if(UEdGraphPin* DelegatePin = CreatePin(EGPD_Input, K2Schema->PC_Delegate, TEXT(""), NULL, false, true, FK2Node_BaseMCDelegateHelper::DelegatePinName, true))
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{
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FMemberReference::FillSimpleMemberReference<UFunction>(GetDelegateSignature(), DelegatePin->PinType.PinSubCategoryMemberReference);
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DelegatePin->PinFriendlyName = NSLOCTEXT("K2Node", "PinFriendlyDelegatetName", "Event");
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}
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}
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FText UK2Node_AddDelegate::GetNodeTitle(ENodeTitleType::Type TitleType) const
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{
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if (CachedNodeTitle.IsOutOfDate())
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{
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FFormatNamedArguments Args;
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Args.Add(TEXT("PropertyName"), FText::FromName(GetPropertyName()));
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// FText::Format() is slow, so we cache this to save on performance
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CachedNodeTitle = FText::Format(NSLOCTEXT("K2Node", "AddDelegate", "Bind Event to {PropertyName}"), Args);
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}
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return CachedNodeTitle;
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}
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FNodeHandlingFunctor* UK2Node_AddDelegate::CreateNodeHandler(FKismetCompilerContext& CompilerContext) const
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{
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return new FKCHandler_AddRemoveDelegate(CompilerContext, KCST_AddMulticastDelegate);
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}
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void UK2Node_AddDelegate::GetNodeAttributes( TArray<TKeyValuePair<FString, FString>>& OutNodeAttributes ) const
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{
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OutNodeAttributes.Add( TKeyValuePair<FString, FString>( TEXT( "Type" ), TEXT( "AddDelegate" ) ));
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OutNodeAttributes.Add( TKeyValuePair<FString, FString>( TEXT( "Class" ), GetClass()->GetName() ));
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OutNodeAttributes.Add( TKeyValuePair<FString, FString>( TEXT( "Name" ), GetPropertyName().ToString() ));
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}
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/////// UK2Node_ClearDelegate ///////////
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UK2Node_ClearDelegate::UK2Node_ClearDelegate(const class FPostConstructInitializeProperties& PCIP)
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: Super(PCIP)
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{
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}
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FText UK2Node_ClearDelegate::GetNodeTitle(ENodeTitleType::Type TitleType) const
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{
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if (CachedNodeTitle.IsOutOfDate())
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{
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FFormatNamedArguments Args;
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Args.Add(TEXT("PropertyName"), FText::FromName(GetPropertyName()));
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// FText::Format() is slow, so we cache this to save on performance
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CachedNodeTitle = FText::Format(NSLOCTEXT("K2Node", "ClearDelegate", "Unbind all Events from {PropertyName}"), Args);
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}
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return CachedNodeTitle;
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}
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FNodeHandlingFunctor* UK2Node_ClearDelegate::CreateNodeHandler(FKismetCompilerContext& CompilerContext) const
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{
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return new FKCHandler_ClearDelegate(CompilerContext);
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}
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/////// UK2Node_RemoveDelegate ///////////
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UK2Node_RemoveDelegate::UK2Node_RemoveDelegate(const class FPostConstructInitializeProperties& PCIP)
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: Super(PCIP)
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{
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}
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void UK2Node_RemoveDelegate::AllocateDefaultPins()
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{
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Super::AllocateDefaultPins();
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const UEdGraphSchema_K2* K2Schema = GetDefault<UEdGraphSchema_K2>();
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if(UEdGraphPin* DelegatePin = CreatePin(EGPD_Input, K2Schema->PC_Delegate, TEXT(""), NULL, false, true, FK2Node_BaseMCDelegateHelper::DelegatePinName, true))
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{
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FMemberReference::FillSimpleMemberReference<UFunction>(GetDelegateSignature(), DelegatePin->PinType.PinSubCategoryMemberReference);
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DelegatePin->PinFriendlyName = NSLOCTEXT("K2Node", "PinFriendlyDelegatetName", "Event");
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}
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}
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FText UK2Node_RemoveDelegate::GetNodeTitle(ENodeTitleType::Type TitleType) const
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{
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if (CachedNodeTitle.IsOutOfDate())
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{
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FFormatNamedArguments Args;
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Args.Add(TEXT("PropertyName"), FText::FromName(GetPropertyName()));
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// FText::Format() is slow, so we cache this to save on performance
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CachedNodeTitle = FText::Format(NSLOCTEXT("K2Node", "RemoveDelegate", "Unbind Event from {PropertyName}"), Args);
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}
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return CachedNodeTitle;
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}
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FNodeHandlingFunctor* UK2Node_RemoveDelegate::CreateNodeHandler(FKismetCompilerContext& CompilerContext) const
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{
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return new FKCHandler_AddRemoveDelegate(CompilerContext, KCST_RemoveMulticastDelegate);
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}
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/////// UK2Node_CallDelegate ///////////
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UK2Node_CallDelegate::UK2Node_CallDelegate(const class FPostConstructInitializeProperties& PCIP)
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: Super(PCIP)
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{
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}
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bool UK2Node_CallDelegate::CreatePinsForFunctionInputs(const UFunction* Function)
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{
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const UEdGraphSchema_K2* K2Schema = GetDefault<UEdGraphSchema_K2>();
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// Create the inputs and outputs
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bool bAllPinsGood = true;
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for (TFieldIterator<UProperty> PropIt(Function); PropIt && (PropIt->PropertyFlags & CPF_Parm); ++PropIt)
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{
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UProperty* Param = *PropIt;
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const bool bIsFunctionInput = !Param->HasAnyPropertyFlags(CPF_OutParm) || Param->HasAnyPropertyFlags(CPF_ReferenceParm);
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if (bIsFunctionInput)
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{
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UEdGraphPin* Pin = CreatePin(EGPD_Input, TEXT(""), TEXT(""), NULL, false, false, Param->GetName());
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const bool bPinGood = K2Schema->ConvertPropertyToPinType(Param, /*out*/ Pin->PinType);
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bAllPinsGood = bAllPinsGood && bPinGood;
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}
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}
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return bAllPinsGood;
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}
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void UK2Node_CallDelegate::AllocateDefaultPins()
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{
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Super::AllocateDefaultPins();
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CreatePinsForFunctionInputs(GetDelegateSignature());
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}
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FText UK2Node_CallDelegate::GetNodeTitle(ENodeTitleType::Type TitleType) const
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{
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if (CachedNodeTitle.IsOutOfDate())
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{
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FFormatNamedArguments Args;
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Args.Add(TEXT("PropertyName"), FText::FromName(GetPropertyName()));
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// FText::Format() is slow, so we cache this to save on performance
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CachedNodeTitle = FText::Format(NSLOCTEXT("K2Node", "CallDelegate", "Call {PropertyName}"), Args);
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}
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return CachedNodeTitle;
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}
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void UK2Node_CallDelegate::ValidateNodeDuringCompilation(class FCompilerResultsLog& MessageLog) const
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{
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UK2Node::ValidateNodeDuringCompilation(MessageLog);
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if(UProperty* Property = GetProperty())
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{
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if(!Property->HasAllPropertyFlags(CPF_BlueprintCallable))
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{
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MessageLog.Error(*FString::Printf(*NSLOCTEXT("K2Node", "BaseMCDelegateNotCallable", "Event Dispatcher is not 'BlueprintCallable' @@").ToString()), this);
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}
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}
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}
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FNodeHandlingFunctor* UK2Node_CallDelegate::CreateNodeHandler(FKismetCompilerContext& CompilerContext) const
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{
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return new FKCHandler_CallDelegate(CompilerContext);
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}
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FName UK2Node_CallDelegate::GetCornerIcon() const
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{
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return TEXT("Graph.Message.MessageIcon");
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}
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