Engine/Source/Editor/LandscapeEditor/Private/LandscapeEditorServices.cpp

// Copyright Epic Games, Inc. All Rights Reserved.

#include "LandscapeEditorServices.h"
#include "SLandscapeLayerListDialog.h"

#if WITH_EDITOR
int32 FLandscapeEditorServices::GetOrCreateEditLayer(FName InEditLayerName, ALandscape* InTargetLandscape)
{
	int32 ExistingLayerIndex = InTargetLandscape->GetLayerIndex(InEditLayerName);
	if (ExistingLayerIndex == INDEX_NONE)
	{
		InTargetLandscape->CreateLayer(InEditLayerName);
		TSharedPtr<SLandscapeLayerListDialog> Dialog = SNew(SLandscapeLayerListDialog, InTargetLandscape->LandscapeLayers);
		Dialog->ShowModal();
		ExistingLayerIndex = Dialog->InsertedLayerIndex;
	}
	return ExistingLayerIndex;
}
#endif // WITH_EDITOR
Landscape Edit Layers: Add edit layer insertion modal dialog and ILandscapeEditorServices. Implement high level GetOrCreateEditLayer(FName InEditLayerName, ALandscape* InTargetLandscape) which allows for custom layer creation logic. Default logic returns layer index if matching layer is found, otherwise creates the layer and prompts the user with a dialog to choose how to insert the new layer. #jira UE-157674 #rb jonathan.bard #preflight 6303dd75fa1ac183e5f64663 [CL 21492408 by Nickolas Drake in ue5-main branch] 2022-08-22 16:30:55 -04:00			`// Copyright Epic Games, Inc. All Rights Reserved.`

			`#include "LandscapeEditorServices.h"`
			`#include "SLandscapeLayerListDialog.h"`

			`#if WITH_EDITOR`
			`int32 FLandscapeEditorServices::GetOrCreateEditLayer(FName InEditLayerName, ALandscape* InTargetLandscape)`
			`{`
			`int32 ExistingLayerIndex = InTargetLandscape->GetLayerIndex(InEditLayerName);`
			`if (ExistingLayerIndex == INDEX_NONE)`
			`{`
			`InTargetLandscape->CreateLayer(InEditLayerName);`
			`TSharedPtr<SLandscapeLayerListDialog> Dialog = SNew(SLandscapeLayerListDialog, InTargetLandscape->LandscapeLayers);`
			`Dialog->ShowModal();`
			`ExistingLayerIndex = Dialog->InsertedLayerIndex;`
			`}`
			`return ExistingLayerIndex;`
			`}`
			`#endif // WITH_EDITOR`