tachyon::UndoHistory Class Reference

The app's undo history: steps that each undo and redo one change. More...

#include <gui_core/input/gui_undo_history.h>

Classes
struct	Step

Public Member Functions
void	Push (Step step)
	Adds a step after the current one, dropping any undone steps (or merges it into the last step, see Step::mergeKey).
void	EndMerge ()
	The next push starts a step of its own (e.g. when a field loses the focus).
bool	CanUndo () const
bool	CanRedo () const
void	Undo ()
void	Redo ()
size_t	UndoCount () const
size_t	RedoCount () const
std::string_view	UndoDescription () const
std::string_view	RedoDescription () const
void	Clear ()

Detailed Description

The app's undo history: steps that each undo and redo one change.

Text fields push their committed edits here, and so can the app's own editors; Undo / Redo walk it.

Member Function Documentation

Push()

void tachyon::UndoHistory::Push ( Step step )

inline

Adds a step after the current one, dropping any undone steps (or merges it into the last step, see Step::mergeKey).

Does not run it.

EndMerge()

void tachyon::UndoHistory::EndMerge ( )

inline

The next push starts a step of its own (e.g. when a field loses the focus).

CanUndo()

bool tachyon::UndoHistory::CanUndo ( ) const

inline

CanRedo()

bool tachyon::UndoHistory::CanRedo ( ) const

inline

Undo()

void tachyon::UndoHistory::Undo ( )

inline

Redo()

void tachyon::UndoHistory::Redo ( )

inline

UndoCount()

size_t tachyon::UndoHistory::UndoCount ( ) const

inline

RedoCount()

size_t tachyon::UndoHistory::RedoCount ( ) const

inline

UndoDescription()

std::string_view tachyon::UndoHistory::UndoDescription ( ) const

inline

RedoDescription()

std::string_view tachyon::UndoHistory::RedoDescription ( ) const

inline

Clear()

void tachyon::UndoHistory::Clear ( )

inline

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

• gui_core/input/gui_undo_history.h