tetrees/Plugins/Wwise/Source/AkAudio/Classes/AkWaapiUMG/Components/WwisePropertyDragDropOp.h

/*******************************************************************************
The content of this file includes portions of the proprietary AUDIOKINETIC Wwise
Technology released in source code form as part of the game integration package.
The content of this file may not be used without valid licenses to the
AUDIOKINETIC Wwise Technology.
Note that the use of the game engine is subject to the Unreal(R) Engine End User
License Agreement at https://www.unrealengine.com/en-US/eula/unreal
 
License Usage
 
Licensees holding valid licenses to the AUDIOKINETIC Wwise Technology may use
this file in accordance with the end user license agreement provided with the
software or, alternatively, in accordance with the terms contained
in a written agreement between you and Audiokinetic Inc.
Copyright (c) 2023 Audiokinetic Inc.
*******************************************************************************/

#pragma once

#include "CoreMinimal.h"
#include "Input/DragAndDrop.h"
#include "Widgets/DeclarativeSyntaxSupport.h"
#include "Widgets/SBoxPanel.h"
#include "Widgets/Layout/SBorder.h"
#include "Widgets/Images/SImage.h"
#include "Widgets/Text/STextBlock.h"
#include "WaapiPicker/WwiseTreeItem.h"
#include "AkAudioStyle.h"

class AKAUDIO_API FWwisePropertyDragDropOp : public FDragDropOperation
{
public:

	DRAG_DROP_OPERATOR_TYPE(FWwisePropertyDragDropOp, FDragDropOperation)

	static TSharedRef<FWwisePropertyDragDropOp> New(const TArray<TSharedPtr<FString>>& in_Wwiseproperties)
	{
		TSharedRef<FWwisePropertyDragDropOp> Operation = MakeShareable(new FWwisePropertyDragDropOp);
#if WITH_EDITOR
		Operation->MouseCursor = EMouseCursor::GrabHandClosed;
#else 
		Operation->MouseCursor = EMouseCursor::None;
#endif
		Operation->Wwiseproperties = in_Wwiseproperties;
		Operation->Construct();

		return Operation;
	}
	
	const TArray< TSharedPtr<FString> >& GetWiseProperties() const
	{
		return Wwiseproperties;
	}

public:
	FText GetDecoratorText() const
	{
		FString Text = Wwiseproperties.Num() == 1 ? *Wwiseproperties[0].Get() : TEXT("");

		if (Wwiseproperties.Num() > 1 )
		{
			Text = FString::Printf(TEXT("Can't handle more than one Property"));
		}
		return FText::FromString(Text);
	}

	virtual TSharedPtr<SWidget> GetDefaultDecorator() const override
	{
#if WITH_EDITOR
		return 
			SNew(SBorder)
			.BorderImage(FAkAudioStyle::GetBrush("AudiokineticTools.AssetDragDropTooltipBackground"))
			.Content()
			[
				SNew(SHorizontalBox)
				// slot for the item name.
				+ SHorizontalBox::Slot()
				.AutoWidth()
				.VAlign(VAlign_Center)
				[
					SNew(SHorizontalBox)
					+SHorizontalBox::Slot()
					.AutoWidth()
					.Padding(3,0,3,0)
					.VAlign(VAlign_Center)
					[
						SNew(STextBlock) 
						.Text(this, &FWwisePropertyDragDropOp::GetDecoratorText)
					]
				]
			];
#else 
		return NULL;
#endif
	}

private:
	/** Data for the asset this item represents */
	TArray<TSharedPtr<FString>> Wwiseproperties;
};