class Fox::FXCommand

FXCommand is an “abstract” base class for your application’s commands. At a minimum, your concrete subclasses of FXCommand should implement the undo, redo, undoName, and redoName methods.

Public Instance Methods

redo ()

Source

# File lib/fox16/undolist.rb, line 425
def redo
  raise NotImpError
end

Redo this command; this should save enough information for a subsequent undo.

redoName ()

Source

# File lib/fox16/undolist.rb, line 441
def redoName
  raise NotImpError
end

Name of the redo command to be shown on a button or menu command; for example, “Redo Delete”.

size ()

Source

# File lib/fox16/undolist.rb, line 451
def size
  0
end

Returns the size of the information in the undo record, i.e. the number of bytes required to store it in memory. This is only used by the FXUndoList#trimSize method, which can be called to reduce the memory use of the undo list to a certain size.

undo ()

Source

# File lib/fox16/undolist.rb, line 417
def undo
  raise NotImpError
end

Undo this command; this should save enough information for a subsequent redo.

undoName ()

Source

# File lib/fox16/undolist.rb, line 433
def undoName
  raise NotImpError
end

Name of the undo command to be shown on a button or menu command; for example, “Undo Delete”.