A Stack to save a history of Actions. More...

#include <MemoryX/gui-plugins/SceneEditor/controller/UndoRedoStack.h>

Public Member Functions
bool	canRedo ()
	Returns the possibility to redo a Action.

bool	canUndo ()
	Returns the possibility to undo a Action.

void	clear ()
	Removes all actions from the history.

void	push (const std::shared_ptr< std::vector< OperationPtr > > &operations)
	Adds a Action to the history.

std::shared_ptr< std::vector< OperationPtr > >	redo ()
	Goes one step forward in the history and returns the Operations need to redo.

std::shared_ptr< std::vector< OperationPtr > >	undo ()
	Goes one step back in the history and returns the Operations need to redo.

	UndoRedoStack ()
	A constructor.

void	updateObjectId (std::string oldId, std::string newId)
	Swaps oldId and newId in all Operations saved in this class.

Detailed Description

A Stack to save a history of Actions.

This Stack provides Functions to move forward and backward in the history.

See also: controller::UndoAction

Constructor & Destructor Documentation

◆ UndoRedoStack()

UndoRedoStack ( )

A constructor.

Creates a new Instance of this class.

Member Function Documentation

◆ canRedo()

bool canRedo ( )

Returns the possibility to redo a Action.

Returns: True, if there is a Action to redo; false otherwise.

◆ canUndo()

bool canUndo ( )

Returns the possibility to undo a Action.

Returns: True, if there is a Action to undo; false otherwise.

◆ clear()

void clear ( )

Removes all actions from the history.

◆ push()

void push ( const std::shared_ptr< std::vector< OperationPtr > > & operations )

Adds a Action to the history.

The redo history will be cleared.

Parameters

action The action to add to the history.

See also: controller::UndoAction

◆ redo()

std::shared_ptr< std::vector< controller::OperationPtr > > redo ( )

Goes one step forward in the history and returns the Operations need to redo.

◆ undo()

std::shared_ptr< std::vector< controller::OperationPtr > > undo ( )

Goes one step back in the history and returns the Operations need to redo.

◆ updateObjectId()

void updateObjectId	(	std::string	oldId,
		std::string	newId )

Swaps oldId and newId in all Operations saved in this class.