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82d7ab588d
- Inset Polygon and Bevel Polygon have been migrated to a new module - Mesh editing actions that require custom logic before starting a drag can now be built in external modules - Added 'FindEditableMesh' for cases where we are expecting a mesh to be cached already - Added 'IsMeshElementSelected' and replaced some uses of 'GetSelectedMeshElementIndex' - Some additional features for MeshEditorMode have been made public to allow for this. For example, the currently hovered mesh element can now be queried using 'GetHoveredMeshElement' - Renamed 'TessellatePolygons' to 'TessellatePolygon' for consistency - A few bug fixes to previous extensibility checkin #codereview richard.talbotwatkin #rb none [CL 3371559 by Mike Fricker in Dev-Geometry branch]
117 lines
4.0 KiB
C++
117 lines
4.0 KiB
C++
// Copyright 1998-2016 Epic Games, Inc. All Rights Reserved.
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#include "InsertEdgeLoop.h"
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#include "IMeshEditorModeEditingContract.h"
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#include "IMeshEditorModeUIContract.h"
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#include "UICommandInfo.h"
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#include "EditableMesh.h"
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#include "MeshElement.h"
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#include "MultiBoxBuilder.h"
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#include "UICommandList.h"
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#define LOCTEXT_NAMESPACE "MeshEditorMode"
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void UInsertEdgeLoopCommand::RegisterUICommand( FBindingContext* BindingContext )
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{
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UI_COMMAND_EXT( BindingContext, /* Out */ UICommandInfo, "InsertEdgeLoop", "Insert Edge Loop Mode", "Set the primary action to insert edge loops.", EUserInterfaceActionType::RadioButton, FInputChord() );
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}
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void UInsertEdgeLoopCommand::ApplyDuringDrag( IMeshEditorModeEditingContract& MeshEditorMode, UViewportInteractor* ViewportInteractor, bool& bOutShouldDeselectAllFirst, TArray<FMeshElement>& OutMeshElementsToSelect )
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{
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// Insert edge loop
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static TMap< UEditableMesh*, TArray< FMeshElement > > SelectedMeshesAndEdges;
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MeshEditorMode.GetSelectedMeshesAndEdges( /* Out */ SelectedMeshesAndEdges );
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if( SelectedMeshesAndEdges.Num() > 0 )
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{
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// Deselect the edges first, since they'll be deleted or split up while inserting the edge loop,
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// and we want them to be re-selected after undo
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MeshEditorMode.DeselectMeshElements( SelectedMeshesAndEdges );
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for( auto& MeshAndEdges : SelectedMeshesAndEdges )
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{
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UEditableMesh* EditableMesh = MeshAndEdges.Key;
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verify( !EditableMesh->AnyChangesToUndo() );
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const TArray<FMeshElement>& EdgeElements = MeshAndEdges.Value;
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// Figure out where to add the loop along the edge
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static TArray<float> Splits;
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MeshEditorMode.FindEdgeSplitUnderInteractor( MeshEditorMode.GetActiveActionInteractor(), EditableMesh, EdgeElements, /* Out */ Splits );
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// Insert the edge loop
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if( Splits.Num() > 0 )
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{
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// @todo mesheditor edgeloop: Test code
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if( false )
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{
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if( Splits[ 0 ] > 0.25f )
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{
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Splits.Insert( FMath::Max( Splits[ 0 ] - 0.2f, 0.0f ), 0 );
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}
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if( Splits.Last() < 0.75f )
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{
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Splits.Add( FMath::Min( Splits.Last() + 0.2f, 1.0f ) );
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}
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}
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for( const FMeshElement& EdgeMeshElement : EdgeElements )
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{
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const FEdgeID EdgeID( EdgeMeshElement.ElementAddress.ElementID );
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static TArray<FEdgeID> NewEdgeIDs;
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NewEdgeIDs.Reset();
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EditableMesh->InsertEdgeLoop( EdgeID, Splits, /* Out */ NewEdgeIDs );
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// Select all of the new edges that were created by inserting the loop
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if( NewEdgeIDs.Num() > 0 )
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{
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bOutShouldDeselectAllFirst = true; // Don't keep the edge selected
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for( const FEdgeID NewEdgeID : NewEdgeIDs )
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{
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FMeshElement MeshElementToSelect;
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{
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MeshElementToSelect.Component = EdgeMeshElement.Component;
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MeshElementToSelect.ElementAddress.SubMeshAddress = EdgeMeshElement.ElementAddress.SubMeshAddress;
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MeshElementToSelect.ElementAddress.ElementType = EEditableMeshElementType::Edge;
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MeshElementToSelect.ElementAddress.ElementID = NewEdgeID;
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}
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// Queue selection of this new element. We don't want it to be part of the current action.
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OutMeshElementsToSelect.Add( MeshElementToSelect );
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}
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}
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}
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MeshEditorMode.TrackUndo( EditableMesh, EditableMesh->MakeUndo() );
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}
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}
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}
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}
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void UInsertEdgeLoopCommand::AddToVRRadialMenuActionsMenu( IMeshEditorModeUIContract& MeshEditorMode, FMenuBuilder& MenuBuilder, TSharedPtr<FUICommandList> CommandList, const FName TEMPHACK_StyleSetName, class UVREditorMode* VRMode )
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{
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if( MeshEditorMode.GetMeshElementSelectionMode() == EEditableMeshElementType::Edge )
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{
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MenuBuilder.AddMenuEntry(
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LOCTEXT("VRInsertEdgeLoop", "Insert Loop"),
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FText(),
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FSlateIcon(TEMPHACK_StyleSetName, "MeshEditorMode.EdgeInsert"), // @todo mesheditor extensibility: TEMPHACK for style; Need PolygonModelingStyle, probably. Or we're just cool with exporting MeshEditorModeStyle, since we're all the same plugin after all.
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MakeUIAction( MeshEditorMode ),
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NAME_None,
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EUserInterfaceActionType::ToggleButton
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);
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}
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}
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#undef LOCTEXT_NAMESPACE
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