Class InsertTextCommand

java.lang.Object

fr.istic.aco.editor.commands.InsertTextCommand

All Implemented Interfaces:

Command, CommandOriginator, Originator

public class InsertTextCommand
extends Object
implements CommandOriginator

The InsertTextCommand class implements the functionality for inserting a string in the buffer, which replaces the contents of the selection

Constructor Summary

Constructors

Constructor	Description
InsertTextCommand(Engine engine, Invoker invoker, Recorder recorder, UndoManager undoManager)	Constructs a CopyTextCommand with the specified dependencies.

Method Summary

Modifier and Type	Method	Description
void	execute()	Executes the command by inserting a string in the buffer
Memento	getMemento()	Creates and returns a memento representing the current state of the insert command.
void	setMemento(Memento memento)	Restores the state of the command from the provided memento.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

InsertTextCommand

public InsertTextCommand(Engine engine,
 Invoker invoker,
 Recorder recorder,
 UndoManager undoManager)

Constructs a CopyTextCommand with the specified dependencies.

Parameters:

engine - the text editing engine responsible for text editing actions

invoker - the invoker object that provides the text to be inserted

recorder - the command recorder for saving and replaying the command

undoManager - the undo manager for handling undo and redo functionality

Method Details

getMemento

public Memento getMemento()

Creates and returns a memento representing the current state of the insert command.

The memento stores the text to be inserted, which is retrieved from the Invoker.

Specified by:

getMemento in interface Originator

Returns:

a memento containing the text to be inserted

setMemento

public void setMemento(Memento memento)

Restores the state of the command from the provided memento.

The text stored in the memento is set back to the Invoker.

Specified by:

setMemento in interface Originator

Parameters:

memento - the memento object containing the state to restore

execute

public void execute()

Executes the command by inserting a string in the buffer

Before executing, the current state of the Engine is stored in the UndoManager as a memento. The command is also saved in the Recorder for replay functionality.

Specified by:

execute in interface Command