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CommandHistory Class Reference

A history for Command, provides undo/redo functionality. More...

#include <CommandHistory.h>

Inheritance diagram for CommandHistory:

[legend]List of all members.

Public Member Functions
	CommandHistory ()
	ctor.
virtual	~CommandHistory ()
	dtor.
void	clear ()
	Erases all the undo/redo history.
void	addCommand (Command *command, bool execute=true)
	Adds a command to the history.
virtual void	undo ()
	Undoes the last action.
virtual void	redo ()
	Redoes the last undone action.

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Detailed Description

A history for Command, provides undo/redo functionality.

To use this, all modifications to the model have to be done through commands that are executed with addCommand();

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Constructor & Destructor Documentation

CommandHistory::CommandHistory (   )

ctor.

CommandHistory::~CommandHistory (   )  [virtual]

dtor.

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Member Function Documentation

void CommandHistory::addCommand (  Command *  command, bool  execute = true )

Adds a command to the history. Call this for each command you create. Unless you set execute to false, this will also execute the command. This means, most of the application's code will look like MyCommand * cmd = new MyCommand(...); m_historyCommand.addCommand( cmd ); Ownership of command is transfered to CommandHistory

void CommandHistory::clear (   )

Erases all the undo/redo history. Use this when reloading the data, for instance, since this invalidates all the commands.

void CommandHistory::redo (   )  [virtual]

Redoes the last undone action.

void CommandHistory::undo (   )  [virtual]

Undoes the last action.

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

• hugin1/hugin/CommandHistory.h
• hugin1/hugin/CommandHistory.cpp

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