Olympe::CommandHistory Class Reference

Manages undo/redo stacks for graph operations. More...

#include <CommandHistory.h>

Public Member Functions
	CommandHistory ()
	~CommandHistory ()=default
bool	ExecuteCommand (GraphCommandPtr command)
	Execute a new command and add it to history.
bool	Undo ()
	Undo the last command.
bool	Redo ()
	Redo the last undone command.
bool	CanUndo () const
	Check if undo is available.
bool	CanRedo () const
	Check if redo is available.
std::string	GetUndoDescription () const
	Get description of next undo command.
std::string	GetRedoDescription () const
	Get description of next redo command.
void	Clear ()
	Clear all undo/redo history.
size_t	GetUndoStackSize () const
	Get current undo stack size.
size_t	GetRedoStackSize () const
	Get current redo stack size.

Private Attributes
std::vector< GraphCommandPtr >	m_undoStack
std::vector< GraphCommandPtr >	m_redoStack

Detailed Description

Manages undo/redo stacks for graph operations.

Implements a standard undo/redo pattern with two stacks:

• Undo stack: Commands that can be undone
• Redo stack: Commands that were undone and can be redone

Definition at line 24 of file CommandHistory.h.

Constructor & Destructor Documentation

CommandHistory()

Olympe::CommandHistory::CommandHistory

(

)

Definition at line 11 of file CommandHistory.cpp.

~CommandHistory()

Olympe::CommandHistory::~CommandHistory ( )

default

Member Function Documentation

CanRedo()

bool Olympe::CommandHistory::CanRedo

(

)

const

Check if redo is available.

Returns

true if there's a command to redo

Definition at line 76 of file CommandHistory.cpp.

References m_redoStack.

CanUndo()

bool Olympe::CommandHistory::CanUndo

(

)

const

Check if undo is available.

Returns

true if there's a command to undo

Definition at line 71 of file CommandHistory.cpp.

References m_undoStack.

Clear()

void Olympe::CommandHistory::Clear

(

)

Clear all undo/redo history.

Definition at line 95 of file CommandHistory.cpp.

References m_redoStack, and m_undoStack.

ExecuteCommand()

bool Olympe::CommandHistory::ExecuteCommand

(

GraphCommandPtr

command

)

Execute a new command and add it to history.

Parameters

command

The command to execute

Returns

true if command executed successfully

Definition at line 15 of file CommandHistory.cpp.

References GetComponentTypeID_Static(), m_redoStack, and m_undoStack.

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GetRedoDescription()

std::string Olympe::CommandHistory::GetRedoDescription

(

)

const

Get description of next redo command.

Returns

Description string or empty if nothing to redo

Definition at line 88 of file CommandHistory.cpp.

References m_redoStack.

GetRedoStackSize()

size_t Olympe::CommandHistory::GetRedoStackSize ( ) const

inline

Get current redo stack size.

Definition at line 86 of file CommandHistory.h.

References m_redoStack.

GetUndoDescription()

std::string Olympe::CommandHistory::GetUndoDescription

(

)

const

Get description of next undo command.

Returns

Description string or empty if nothing to undo

Definition at line 81 of file CommandHistory.cpp.

References Olympe::GraphCommand::GetDescription(), and m_undoStack.

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GetUndoStackSize()

size_t Olympe::CommandHistory::GetUndoStackSize ( ) const

inline

Get current undo stack size.

Definition at line 81 of file CommandHistory.h.

References m_undoStack.

Redo()

bool Olympe::CommandHistory::Redo

(

)

Redo the last undone command.

Returns

true if redo succeeded, false if nothing to redo

Definition at line 52 of file CommandHistory.cpp.

References GetComponentTypeID_Static(), m_redoStack, and m_undoStack.

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Undo()

bool Olympe::CommandHistory::Undo

(

)

Undo the last command.

Returns

true if undo succeeded, false if nothing to undo

Definition at line 33 of file CommandHistory.cpp.

References GetComponentTypeID_Static(), m_redoStack, and m_undoStack.

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Member Data Documentation

m_redoStack

std::vector<GraphCommandPtr> Olympe::CommandHistory::m_redoStack

private

Definition at line 90 of file CommandHistory.h.

Referenced by CanRedo(), Clear(), ExecuteCommand(), GetRedoDescription(), GetRedoStackSize(), Redo(), and Undo().

m_undoStack

std::vector<GraphCommandPtr> Olympe::CommandHistory::m_undoStack

private

Definition at line 89 of file CommandHistory.h.

Referenced by CanUndo(), Clear(), ExecuteCommand(), GetUndoDescription(), GetUndoStackSize(), Redo(), and Undo().

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The documentation for this class was generated from the following files:

• Source/BlueprintEditor/Commands/CommandHistory.h
• Source/BlueprintEditor/Commands/CommandHistory.cpp