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46630c002f
Add UInteractiveCommandResult, UInteractiveCommand::ExecuteCommand() now optionally can return a result subclass Add UGeometrySelectionEditCommandResult, UGeometrySelectionEditCommand now can optionally return an "output" selection via this type UGeometrySelectionManager::ExecuteSelectionCommand optionally can restore a selection after a command, via UGeometrySelectionEditCommandResult Add UDisconnectGeometrySelectionCommand, implements disconnection of selected triangles (ie separates but not into a new mesh) Add UModifyGeometrySelectionCommand, implements various selection edits (select all, expand to connected, invert, invert connected, expand, contract) Add IGeometrySelector::InitializeSelectionFromPredicate() and ::UpdateSelectionFromSelection(), implement in UDynamicMeshSelector, used to implement selection edit commands Add UI to enable new commands in Modeling Mode #rb none #preflight 63c047f4305002c64170f6a2 [CL 23667880 by ryan schmidt in ue5-main branch]
90 lines
2.5 KiB
C++
90 lines
2.5 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "InteractiveCommand.h"
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#include "Selection/GeometrySelector.h" // for FGeometrySelectionHandle
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#include "SelectionEditInteractiveCommand.generated.h"
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/**
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* Arguments for a UGeometrySelectionEditCommand
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*/
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UCLASS()
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class MODELINGCOMPONENTS_API UGeometrySelectionEditCommandArguments : public UInteractiveCommandArguments
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{
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GENERATED_BODY()
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public:
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FGeometrySelectionHandle SelectionHandle;
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bool IsSelectionEmpty() const
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{
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return SelectionHandle.Selection == nullptr || SelectionHandle.Selection->IsEmpty();
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}
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bool IsMatchingType(FGeometryIdentifier::ETargetType TargetType, FGeometryIdentifier::EObjectType EngineType) const
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{
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return SelectionHandle.Identifier.TargetType == TargetType
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|| SelectionHandle.Identifier.ObjectType == EngineType;
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}
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};
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UCLASS()
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class MODELINGCOMPONENTS_API UGeometrySelectionEditCommandResult : public UInteractiveCommandResult
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{
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GENERATED_BODY()
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public:
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FGeometrySelectionHandle SourceHandle;
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UE::Geometry::FGeometrySelection OutputSelection;
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};
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/**
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* UGeometrySelectionEditCommand is a command that edits geometry based on a selection.
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* Requires a UGeometrySelectionEditCommandArguments
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*/
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UCLASS(Abstract)
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class MODELINGCOMPONENTS_API UGeometrySelectionEditCommand : public UInteractiveCommand
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{
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GENERATED_BODY()
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public:
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virtual bool AllowEmptySelection() const { return false; }
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virtual bool IsModifySelectionCommand() const { return false; }
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virtual bool CanExecuteCommandForSelection(UGeometrySelectionEditCommandArguments* SelectionArgs)
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{
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return false;
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}
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virtual void ExecuteCommandForSelection(UGeometrySelectionEditCommandArguments* Arguments, UInteractiveCommandResult** Result = nullptr)
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{
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}
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public:
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// UInteractiveCommand API
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virtual bool CanExecuteCommand(UInteractiveCommandArguments* Arguments) override
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{
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UGeometrySelectionEditCommandArguments* SelectionArgs = Cast<UGeometrySelectionEditCommandArguments>(Arguments);
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if (SelectionArgs && (SelectionArgs->IsSelectionEmpty() == false || AllowEmptySelection()) )
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{
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return CanExecuteCommandForSelection(SelectionArgs);
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}
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return false;
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}
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virtual void ExecuteCommand(UInteractiveCommandArguments* Arguments, UInteractiveCommandResult** Result = nullptr) override
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{
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UGeometrySelectionEditCommandArguments* SelectionArgs = Cast<UGeometrySelectionEditCommandArguments>(Arguments);
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if ( SelectionArgs && (SelectionArgs->IsSelectionEmpty() == false || AllowEmptySelection()) )
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{
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ExecuteCommandForSelection(SelectionArgs, Result);
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}
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}
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};
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