BansheeEngine/BansheeEditor/Include/BsCmdReparentSO.h

#pragma once

#include "BsEditorPrerequisites.h"
#include "BsEditorCommand.h"
#include "BsUndoRedo.h"

namespace BansheeEngine
{
	/**
	 * @brief	A command used for undo/redo purposes. It records a scene object
	 *			parent change operations. It allows you to apply the parent change
	 *			or revert the object to its original parent as needed.
	 */
	class BS_ED_EXPORT CmdReparentSO : public EditorCommand
	{
	public:
		/**
		 * @brief	Creates and executes the command on the provided scene object(s).
		 *			Automatically registers the command with undo/redo system.
		 *
		 * @param	sceneObjects	Object(s) to change the parent for.
		 * @param	newParent		New parent for the provided objects.
		 * @param	description		Optional description of what exactly the command does.
		 */
		static void execute(const Vector<HSceneObject>& sceneObjects, const HSceneObject& newParent, 
			const WString& description = StringUtil::WBLANK);

		/**
		 * @brief	Creates and executes the command on the provided scene object.
		 *			Automatically registers the command with undo/redo system.
		 *
		 * @param	sceneObject		Object to change the parent for.
		 * @param	newParent		New parent for the provided objects.
		 * @param	description		Optional description of what exactly the command does.
		 */
		static void execute(HSceneObject& sceneObject, const HSceneObject& newParent, 
			const WString& description = StringUtil::WBLANK);

		/**
		 * @copydoc	EditorCommand::commit
		 */
		void commit() override;

		/**
		 * @copydoc	EditorCommand::revert
		 */
		void revert() override;

	private:
		friend class UndoRedo;

		CmdReparentSO(const WString& description, const Vector<HSceneObject>& sceneObjects, const HSceneObject& newParent);

		Vector<HSceneObject> mSceneObjects;
		Vector<HSceneObject> mOldParents;
		HSceneObject mNewParent;
	};
}