Files
integration/Plugins/UEWingman/Source/UEWingman/Handlers/GraphNode_SetDefault.h

116 lines
3.5 KiB
C++

#pragma once
#include "CoreMinimal.h"
#include "WingBasics.h"
#include "WingServer.h"
#include "WingFetcher.h"
#include "WingUtils.h"
#include "EdGraph/EdGraphPin.h"
#include "EdGraphSchema_K2.h"
#include "MaterialGraph/MaterialGraphSchema.h"
#include "GraphNode_SetDefault.generated.h"
UCLASS()
class UWing_GraphNode_SetDefault : public UWingHandler
{
GENERATED_BODY()
public:
UPROPERTY(EditAnywhere, meta=(Description="Target graph"))
FString Graph;
UPROPERTY(EditAnywhere, meta=(Description="Target node"))
FString Node;
UPROPERTY(EditAnywhere, meta=(Description="Pin or property name"))
FString Name;
UPROPERTY(EditAnywhere, meta=(Description="New default value"))
FString Value;
virtual void Register() override
{
UWingServer::AddHandler(this,
TEXT("Set the default value of input pins or material expression properties on nodes."));
}
// -----------------------------------------------------------------------
// K2 graphs: set pin default values.
// -----------------------------------------------------------------------
void HandleK2(UEdGraph* GraphObj, const UEdGraphSchema_K2* K2Schema)
{
WingFetcher F(GraphObj, WingOut::Stdout);
UWingGraphPinRef* PinRef = F.Node(Node).Pin(Name).Cast<UWingGraphPinRef>();
if (!PinRef) return;
UEdGraphPin* Pin = WingUtils::CheckGetPin(PinRef->Node, PinRef->PinName, WingOut::Stdout);
if (!Pin) return;
UEdGraphNode* FoundNode = Pin->GetOwningNode();
if (Pin->Direction != EGPD_Input)
{
WingOut::Stdout.Printf(TEXT("error: %s is an output pin\n"), *WingUtils::FormatName(Pin));
return;
}
FString UseDefaultValue;
TObjectPtr<UObject> UseDefaultObject = nullptr;
FText UseDefaultText;
K2Schema->GetPinDefaultValuesFromString(Pin->PinType, FoundNode, Value, UseDefaultValue, UseDefaultObject, UseDefaultText, false);
FString Error = K2Schema->IsPinDefaultValid(Pin, UseDefaultValue, UseDefaultObject, UseDefaultText);
if (!Error.IsEmpty())
{
WingOut::Stdout.Printf(TEXT("error: %s: %s\n"), *WingUtils::FormatName(Pin), *Error);
return;
}
UWingServer::AddTouchedObject(FoundNode);
K2Schema->TrySetDefaultValue(*Pin, Value);
}
// -----------------------------------------------------------------------
// Material graphs: set material expression properties.
// -----------------------------------------------------------------------
void HandleMaterial(UEdGraph* GraphObj)
{
WingFetcher F(GraphObj, WingOut::Stdout);
UEdGraphNode* FoundNode = F.Node(Node).Cast<UEdGraphNode>();
if (!FoundNode) return;
TArray<FWingProperty> All = FWingProperty::GetDetails(FoundNode, true);
FWingProperty *P = WingUtils::FindOneWithExternalID(Name, All, TEXT("Property"), WingOut::Stdout);
if (!P) return;
UWingServer::AddTouchedObject(FoundNode);
if (!P->SetText(Value, WingOut::Stdout))
return;
}
// -----------------------------------------------------------------------
virtual void Handle() override
{
// Fetch the graph once.
WingFetcher GraphFetcher(WingOut::Stdout);
UEdGraph* GraphObj = GraphFetcher.Walk(Graph).Cast<UEdGraph>();
if (!GraphObj) return;
const UEdGraphSchema* Schema = GraphObj->GetSchema();
const UEdGraphSchema_K2* K2Schema = Cast<UEdGraphSchema_K2>(Schema);
const UMaterialGraphSchema* MGSchema = Cast<UMaterialGraphSchema>(Schema);
if (!K2Schema && !MGSchema)
{
WingOut::Stdout.Printf(TEXT("error: unsupported graph schema %s\n"), *Schema->GetClass()->GetName());
return;
}
if (K2Schema) HandleK2(GraphObj, K2Schema);
else if (MGSchema) HandleMaterial(GraphObj);
WingOut::Stdout.Printf(TEXT("Done.\n"));
}
};