105 lines
3.5 KiB
C++
105 lines
3.5 KiB
C++
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// Copyright (c) Samuel Kahn (samuel@kahncode.com). All Rights Reserved.
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#include "K2Node_BlobToStruct.h"
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#include "Blob.h"
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#include "BlobFunctionLibrary.h"
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#include "BlueprintActionDatabaseRegistrar.h"
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#include "BlueprintFieldNodeSpawner.h"
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#include "EdGraphSchema_K2.h"
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#include "EdGraphUtilities.h"
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#include "EditorCategoryUtils.h"
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#include "K2Node_CallFunction.h"
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#include "KismetCompiler.h"
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#define LOCTEXT_NAMESPACE "K2Node_BlobToStruct"
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//////////////////////////////////////////////////////////////////////////
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// UK2Node_BlobToStruct
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void UK2Node_BlobToStruct::AllocateDefaultPins()
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{
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Super::AllocateDefaultPins();
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UEdGraphNode::FCreatePinParams PinParams;
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PinParams.bIsConst = true;
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PinParams.bIsReference = true;
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CreatePin(EGPD_Input, UEdGraphSchema_K2::PC_Struct, FBlob::StaticStruct(), FName(TEXT("Blob")), PinParams);
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CreatePin(EGPD_Output, UEdGraphSchema_K2::PC_Wildcard, FName(TEXT("Struct")));
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AllocateBehaviorPin();
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AllocateNetContextPin();
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}
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FText UK2Node_BlobToStruct::GetNodeTitle(ENodeTitleType::Type aTitleType) const
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{
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if (CachedNodeTitle.IsOutOfDate(this))
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{
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CachedNodeTitle.SetCachedText(LOCTEXT("BlobToStruct_Title", "Blob To Struct"), this);
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}
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return CachedNodeTitle;
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}
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FText UK2Node_BlobToStruct::GetTooltipText() const
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{
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if (CachedTooltip.IsOutOfDate(this))
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{
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CachedTooltip.SetCachedText(
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LOCTEXT("BlobToStruct_Tooltip",
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"Node that serializes a blob into a Struct, only use when you know the contents of the blob match the struct"),
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this);
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}
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return CachedTooltip;
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}
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FSlateIcon UK2Node_BlobToStruct::GetIconAndTint(FLinearColor& outColor) const
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{
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static FSlateIcon Icon("EditorStyle", "GraphEditor.BreakStruct_16x");
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return Icon;
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}
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void UK2Node_BlobToStruct::ExpandNode(class FKismetCompilerContext& CompilerContext, UEdGraph* SourceGraph)
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{
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// This is where the node is implemented, calls UBinaryBlobFunctionLibrary::BlobToStruct
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Super::ExpandNode(CompilerContext, SourceGraph);
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if (StructType)
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{
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UEdGraphPin* InBlobPin = GetBlobPin();
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UEdGraphPin* OutStructPin = GetStructPin();
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UK2Node_CallFunction* PinCallFunction = CompilerContext.SpawnIntermediateNode<UK2Node_CallFunction>(this, SourceGraph);
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const UFunction* Function = UBlobFunctionLibrary::StaticClass()->FindFunctionByName(
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GET_FUNCTION_NAME_CHECKED(UBlobFunctionLibrary, BlobToStruct));
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PinCallFunction->SetFromFunction(Function);
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PinCallFunction->AllocateDefaultPins();
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UEdGraphPin* BlobPin = PinCallFunction->FindPinChecked(TEXT("InBlob"));
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CompilerContext.MovePinLinksToIntermediate(*InBlobPin, *BlobPin);
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UEdGraphPin* StructPin = PinCallFunction->FindPinChecked(TEXT("OutStruct"));
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UEdGraphPin* BehaviorPin = PinCallFunction->FindPinChecked(TEXT("Behavior"));
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UEdGraphPin* NetContextPin = PinCallFunction->FindPinChecked(TEXT("NetContext"));
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CompilerContext.MovePinLinksToIntermediate(*GetBehaviorPin(), *BehaviorPin);
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CompilerContext.MovePinLinksToIntermediate(*GetNetContextPin(), *NetContextPin);
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// Set the type of the OutRow pin on this expanded mode to match original
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StructPin->PinType = OutStructPin->PinType;
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StructPin->PinType.PinSubCategoryObject = OutStructPin->PinType.PinSubCategoryObject;
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CompilerContext.MovePinLinksToIntermediate(*OutStructPin, *StructPin); // struct pin out is not recognized properly
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// Move execution pin links
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CompilerContext.MovePinLinksToIntermediate(*GetThenPin(), *(PinCallFunction->GetThenPin()));
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CompilerContext.MovePinLinksToIntermediate(*GetExecPin(), *(PinCallFunction->GetExecPin()));
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}
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// Break any links to the expanded node
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BreakAllNodeLinks();
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}
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#undef LOCTEXT_NAMESPACE
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