class UndoBarWidget(QtGui.QWidget):
def __init__(self, parent):
QtGui.QWidget.__init__(self, parent)
self.model = MasterUndoModel(parent)
self.layout = QtGui.QHBoxLayout(self)
self.undoPushButton = QtGui.QPushButton('Undo', self)
self.undoPushButton.clicked.connect(self.undo)
self.layout.addWidget(self.undoPushButton)
self.model.undoStack.canUndoChanged.connect(self.updateUndoButton)
self.redoPushButton = QtGui.QPushButton('Redo', self)
self.redoPushButton.clicked.connect(self.redo)
self.layout.addWidget(self.redoPushButton)
self.model.undoStack.canRedoChanged.connect(self.updateRedoButton)
@QtCore.pyqtSlot()
def undo(self):
self.model.undo()
return True
@QtCore.pyqtSlot()
def redo(self):
self.model.redo()
return True
@QtCore.pyqtSlot(bool)
def updateRedoButton(self, boolean):
self.redoPushButton.setEnabled(boolean)
return True
@QtCore.pyqtSlot(bool)
def updateUndoButton(self, boolean):
self.undoPushButton.setEnabled(boolean)
return True
