October3d55/M/BlobSerialization/Source/BlobSerializationEditor/Private/K2Node_StructToJson.cpp

91 lines
3.0 KiB
C++

// Copyright (c) Samuel Kahn (samuel@kahncode.com). All Rights Reserved.
#include "K2Node_StructToJson.h"
#include "BlobFunctionLibrary.h"
#include "BlueprintActionDatabaseRegistrar.h"
#include "BlueprintFieldNodeSpawner.h"
#include "EdGraphSchema_K2.h"
#include "EdGraphUtilities.h"
#include "EditorCategoryUtils.h"
#include "K2Node_CallFunction.h"
#include "KismetCompiler.h"
#define LOCTEXT_NAMESPACE "K2Node_StructToJson"
//////////////////////////////////////////////////////////////////////////
// UK2Node_StructToJson
void UK2Node_StructToJson::AllocateDefaultPins()
{
Super::AllocateDefaultPins();
UEdGraphNode::FCreatePinParams PinParams;
PinParams.bIsConst = true;
PinParams.bIsReference = true;
CreatePin(EGPD_Input, UEdGraphSchema_K2::PC_Wildcard, FName(TEXT("Struct")), PinParams);
CreatePin(EGPD_Output, UEdGraphSchema_K2::PC_String, FName(TEXT("JsonString")));
}
FText UK2Node_StructToJson::GetNodeTitle(ENodeTitleType::Type TitleType) const
{
if (CachedNodeTitle.IsOutOfDate(this))
{
CachedNodeTitle.SetCachedText(LOCTEXT("StructToJson_Title", "Struct To Json"), this);
}
return CachedNodeTitle;
}
FText UK2Node_StructToJson::GetTooltipText() const
{
if (CachedTooltip.IsOutOfDate(this))
{
CachedTooltip.SetCachedText(LOCTEXT("StructToJsonToNullStruct_Tooltip", "Writes a struct as a json string"), this);
}
return CachedTooltip;
}
FSlateIcon UK2Node_StructToJson::GetIconAndTint(FLinearColor& OutColor) const
{
static FSlateIcon Icon("EditorStyle", "GraphEditor.MakeStruct_16x");
return Icon;
}
void UK2Node_StructToJson::ExpandNode(class FKismetCompilerContext& CompilerContext, UEdGraph* SourceGraph)
{
Super::ExpandNode(CompilerContext, SourceGraph);
if (StructType)
{
UEdGraphPin* OutJsonStringPin = FindPin(TEXT("JsonString"));
;
UEdGraphPin* InStructPin = GetStructPin();
UK2Node_CallFunction* PinCallFunction = CompilerContext.SpawnIntermediateNode<UK2Node_CallFunction>(this, SourceGraph);
const UFunction* Function = UBlobFunctionLibrary::StaticClass()->FindFunctionByName(
GET_FUNCTION_NAME_CHECKED(UBlobFunctionLibrary, StructToJson));
PinCallFunction->SetFromFunction(Function);
PinCallFunction->AllocateDefaultPins();
UEdGraphPin* StructPin = PinCallFunction->FindPinChecked(TEXT("Struct"));
// Set the type of the OutRow pin on this expanded mode to match original
StructPin->PinType = InStructPin->PinType;
StructPin->PinType.PinSubCategoryObject = InStructPin->PinType.PinSubCategoryObject;
CompilerContext.MovePinLinksToIntermediate(*InStructPin, *StructPin);
UEdGraphPin* JsonStringPin = PinCallFunction->FindPinChecked(TEXT("JsonString"));
CompilerContext.MovePinLinksToIntermediate(*OutJsonStringPin, *JsonStringPin); // struct pin out is not recognized properly
// Move execution pin links
CompilerContext.MovePinLinksToIntermediate(*GetThenPin(), *(PinCallFunction->GetThenPin()));
CompilerContext.MovePinLinksToIntermediate(*GetExecPin(), *(PinCallFunction->GetExecPin()));
}
// Break any links to the expanded node
BreakAllNodeLinks();
}
#undef LOCTEXT_NAMESPACE