Broad rearrangement of handlers

2026-03-12 00:44:17 -04:00
parent 2e058035f3
commit d69fc4cd1e
98 changed files with 270 additions and 1032 deletions
--- a/Plugins/BlueprintMCP/Deprecated/UMCPHandler_DisconnectMaterialExpressionPin.h
+++ b/Plugins/BlueprintMCP/Deprecated/UMCPHandler_DisconnectMaterialExpressionPin.h
@@ -0,0 +1,98 @@
+#pragma once
+
+#include "CoreMinimal.h"
+#include "MCPHandler.h"
+#include "MCPAssetFinder.h"
+#include "MCPFetcher.h"
+#include "MCPUtils.h"
+#include "Materials/Material.h"
+#include "Materials/MaterialExpression.h"
+#include "Materials/MaterialFunction.h"
+#include "MaterialGraph/MaterialGraph.h"
+#include "EdGraph/EdGraph.h"
+#include "EdGraph/EdGraphNode.h"
+#include "EdGraph/EdGraphPin.h"
+#include "UMCPHandler_DisconnectMaterialExpressionPin.generated.h"
+
+
+// ---------------------------------------------------------------------------
+// ---------------------------------------------------------------------------
+// ---------------------------------------------------------------------------
+
+UCLASS(meta=(Group="Unclassified"))
+class UMCPHandler_DisconnectMaterialExpressionPin : public UObject, public IMCPHandler
+{
+	GENERATED_BODY()
+
+public:
+	UPROPERTY(meta=(Optional, Description="Material name or package path (specify this or materialFunction)"))
+	FString Material;
+
+	UPROPERTY(meta=(Optional, Description="Material function name or package path (specify this or material)"))
+	FString MaterialFunction;
+
+	UPROPERTY(meta=(Description="Node name (use FormatName-style identifier)"))
+	FString Node;
+
+	UPROPERTY(meta=(Description="Pin name to disconnect"))
+	FString PinName;
+
+	virtual FString GetDescription() const override
+	{
+		return TEXT("Break all connections on a specific pin in a material or material function graph.");
+	}
+
+	virtual void Handle(const FJsonObject* Json, FStringBuilderBase& Result) override
+	{
+		if (Material.IsEmpty() && MaterialFunction.IsEmpty())
+		{
+			Result.Append(TEXT("ERROR: Specify 'material' or 'materialFunction'.\n"));
+			return;
+		}
+
+		// Load material or material function
+		UMaterial* MaterialObj = nullptr;
+		UMaterialFunction* MatFunc = nullptr;
+
+		if (!MaterialFunction.IsEmpty())
+		{
+			MCPAssets<UMaterialFunction> Assets;
+			if (!Assets.Exact(MaterialFunction).Errors(Result).ENone().ETwo().Load()) return;
+			MatFunc = Assets.Object();
+		}
+		else
+		{
+			MCPAssets<UMaterial> Assets;
+			if (!Assets.Exact(Material).Errors(Result).ENone().ETwo().Load()) return;
+			MaterialObj = Assets.Object();
+		}
+
+		if (MaterialObj) MCPUtils::EnsureMaterialGraph(MaterialObj);
+		UEdGraph* Graph = MaterialObj ? (UEdGraph*)MaterialObj->MaterialGraph : (MatFunc ? MatFunc->MaterialGraph : nullptr);
+		if (!Graph)
+		{
+			Result.Appendf(TEXT("ERROR: %s has no material graph.\n"),
+				MaterialObj ? *MCPUtils::FormatName(MaterialObj) : *MCPUtils::FormatName(MatFunc));
+			return;
+		}
+
+		// Find node and pin via MCPFetcher
+		MCPFetcher F(Result, Graph);
+		UEdGraphPin* Pin = F.Node(Node).Pin(PinName).Cast<UEdGraphPin>();
+		if (!Pin) return;
+
+		int32 BrokenCount = Pin->LinkedTo.Num();
+		Pin->BreakAllPinLinks();
+
+		UObject* Asset = MaterialObj ? (UObject*)MaterialObj : (UObject*)MatFunc;
+		Asset->PreEditChange(nullptr);
+		Asset->PostEditChange();
+
+		bool bSaved = MaterialObj ? MCPUtils::SaveMaterialPackage(MaterialObj) : MCPUtils::SaveGenericPackage(MatFunc);
+
+		Result.Appendf(TEXT("Disconnected %d link(s) from %s on %s.\n"),
+			BrokenCount, *MCPUtils::FormatName(Pin), *MCPUtils::FormatName(Pin->GetOwningNode()));
+		if (!bSaved)
+			Result.Append(TEXT("WARNING: Failed to save package.\n"));
+	}
+};