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[UE-168360] User can create a transition from a state into the entry state * Relinking multiple transitions (transition nodes at once) when none of the transition nodes is selected. * Selective relinking in case a subset of the transition nodes on a transitions are selected. * Special case handling for transitions from entry state (they don't have a transition node connected). * Drawing circle indicator around the arrow head in case the mouse cursor is approaching the transition. * Hovering the arrow head of a transition highlights it by filling the circle with solid orange color and turning the arrow black. * Ending the relink operation in empty space or the entry node will cancel the relink operation. * Fixed bug that prevents creating new transitions ending in an entry state. #jira https://jira.it.epicgames.com/browse/UE-136096 #jira https://jira.it.epicgames.com/browse/UE-168360 #preflight 636a169963037c10262bc421 [CL 23025287 by benjamin jillich in ue5-main branch]
97 lines
4.6 KiB
C++
97 lines
4.6 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "CoreMinimal.h"
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#include "UObject/ObjectMacros.h"
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#include "AssetRegistry/AssetData.h"
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#include "EdGraph/EdGraphSchema.h"
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#include "AnimationStateMachineSchema.generated.h"
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class FMenuBuilder;
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class UEdGraph;
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/** Action to add a node to the graph */
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USTRUCT()
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struct ANIMGRAPH_API FEdGraphSchemaAction_NewStateNode : public FEdGraphSchemaAction
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{
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GENERATED_USTRUCT_BODY()
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UEdGraphNode* NodeTemplate;
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FEdGraphSchemaAction_NewStateNode()
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: FEdGraphSchemaAction()
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, NodeTemplate(nullptr)
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{}
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FEdGraphSchemaAction_NewStateNode(FText InNodeCategory, FText InMenuDesc, FText InToolTip, const int32 InGrouping)
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: FEdGraphSchemaAction(MoveTemp(InNodeCategory), MoveTemp(InMenuDesc), MoveTemp(InToolTip), InGrouping)
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, NodeTemplate(nullptr)
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{}
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virtual UEdGraphNode* PerformAction(class UEdGraph* ParentGraph, UEdGraphPin* FromPin, const FVector2D Location, bool bSelectNewNode = true) override;
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virtual void AddReferencedObjects( FReferenceCollector& Collector ) override;
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template <typename NodeType>
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static NodeType* SpawnNodeFromTemplate(class UEdGraph* ParentGraph, NodeType* InTemplateNode, const FVector2D Location = FVector2D(0.0f, 0.0f), bool bSelectNewNode = true)
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{
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FEdGraphSchemaAction_NewStateNode Action;
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Action.NodeTemplate = InTemplateNode;
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return Cast<NodeType>(Action.PerformAction(ParentGraph, NULL, Location, bSelectNewNode));
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}
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};
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/** Action to create new comment */
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USTRUCT()
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struct ANIMGRAPH_API FEdGraphSchemaAction_NewStateComment : public FEdGraphSchemaAction
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{
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GENERATED_USTRUCT_BODY();
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FEdGraphSchemaAction_NewStateComment()
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: FEdGraphSchemaAction()
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{}
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FEdGraphSchemaAction_NewStateComment(FText InNodeCategory, FText InMenuDesc, FText InToolTip, const int32 InGrouping)
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: FEdGraphSchemaAction(MoveTemp(InNodeCategory), MoveTemp(InMenuDesc), MoveTemp(InToolTip), InGrouping)
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{}
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//~ Begin FEdGraphSchemaAction Interface
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virtual UEdGraphNode* PerformAction(class UEdGraph* ParentGraph, UEdGraphPin* FromPin, const FVector2D Location, bool bSelectNewNode = true) override;
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//~ End FEdGraphSchemaAction Interface
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};
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UCLASS(MinimalAPI)
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class UAnimationStateMachineSchema : public UEdGraphSchema
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{
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GENERATED_UCLASS_BODY()
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ANIMGRAPH_API static const FName PC_Exec;
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//~ Begin UEdGraphSchema Interface
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virtual void CreateDefaultNodesForGraph(UEdGraph& Graph) const override;
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virtual const FPinConnectionResponse CanCreateConnection(const UEdGraphPin* A, const UEdGraphPin* B) const override;
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virtual bool TryCreateConnection(UEdGraphPin* A, UEdGraphPin* B) const override;
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virtual bool CreateAutomaticConversionNodeAndConnections(UEdGraphPin* PinA, UEdGraphPin* PinB) const override;
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virtual bool TryRelinkConnectionTarget(UEdGraphPin* SourcePin, UEdGraphPin* OldTargetPin, UEdGraphPin* NewTargetPin, const TArray<UEdGraphNode*>& InSelectedGraphNodes) const override;
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virtual bool IsConnectionRelinkingAllowed(UEdGraphPin* InPin) const override;
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virtual const FPinConnectionResponse CanRelinkConnectionToPin(const UEdGraphPin* OldSourcePin, const UEdGraphPin* TargetPinCandidate) const override;
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virtual void GetGraphContextActions(FGraphContextMenuBuilder& ContextMenuBuilder) const override;
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virtual EGraphType GetGraphType(const UEdGraph* TestEdGraph) const override;
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virtual void GetContextMenuActions(class UToolMenu* Menu, class UGraphNodeContextMenuContext* Context) const override;
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virtual FLinearColor GetPinTypeColor(const FEdGraphPinType& PinType) const override;
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virtual void GetGraphDisplayInformation(const UEdGraph& Graph, /*out*/ FGraphDisplayInfo& DisplayInfo) const override;
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virtual void DroppedAssetsOnGraph(const TArray<FAssetData>& Assets, const FVector2D& GraphPosition, UEdGraph* Graph) const override;
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virtual void DroppedAssetsOnNode(const TArray<FAssetData>& Assets, const FVector2D& GraphPosition, UEdGraphNode* Node) const override;
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virtual void DroppedAssetsOnPin(const TArray<FAssetData>& Assets, const FVector2D& GraphPosition, UEdGraphPin* Pin) const override;
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virtual void GetAssetsNodeHoverMessage(const TArray<FAssetData>& Assets, const UEdGraphNode* HoverNode, FString& OutTooltipText, bool& OutOkIcon) const override;
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virtual void GetAssetsPinHoverMessage(const TArray<FAssetData>& Assets, const UEdGraphPin* HoverPin, FString& OutTooltipText, bool& OutOkIcon) const override;
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virtual void BreakNodeLinks(UEdGraphNode& TargetNode) const override;
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virtual void BreakPinLinks(UEdGraphPin& TargetPin, bool bSendsNodeNotification) const override;
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virtual void BreakSinglePinLink(UEdGraphPin* SourcePin, UEdGraphPin* TargetPin) const override;
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//~ End UEdGraphSchema Interface
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};
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