def __init__(self, canvas):
QUndoCommand.__init__(self, self.TEXT)
self.canvas_ref = weakref.ref(canvas)
self.before_image = i = canvas.current_image
if i is None:
raise ValueError('No image loaded')
if i.isNull():
raise ValueError('Cannot perform operations on invalid images')
self.after_image = self(canvas)
def __init__(self, canvas):
QUndoCommand.__init__(self, self.TEXT)
self.canvas_ref = weakref.ref(canvas)
self.before_image = i = canvas.current_image
if i is None:
raise ValueError('No image loaded')
if i.isNull():
raise ValueError('Cannot perform operations on invalid images')
self.after_image = self(canvas)
def __init__(self, widget, val):
QUndoCommand.__init__(self)
self.widget = weakref.ref(widget)
self.undo_val = widget.rating_value
self.redo_val = val
def undo(self):
w = self.widget()
w.setCurrentIndex(self.undo_val)
def redo(self):
w = self.widget()
w.setCurrentIndex(self.redo_val)
def __init__(self, widget, val):
QUndoCommand.__init__(self)
self.widget = weakref.ref(widget)
self.undo_val = widget.rating_value
self.redo_val = val
def undo(self):
w = self.widget()
w.setCurrentIndex(self.undo_val)
def redo(self):
w = self.widget()
w.setCurrentIndex(self.redo_val)
