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