def __init__(self, parent=None):
"""Constructor."""
MainWindow.__init__(self, parent=parent)
self.image_lbl = ImageLabel(parent=self)
self.load_btn = QPushButton(parent=self)
self.convert_btn = QPushButton(parent=self)
self.save_btn = QPushButton(parent=self)
self.text_lbl = QLabel(parent=self)
self.dict_chk = QCheckBox(parent=self)
self.last_dir = ""
self.setup()
self.setup_ui()
self.load_state()
self.load_btn.released.connect(self.load_released)
self.convert_btn.released.connect(self.convert_released)
self.save_btn.released.connect(self.save_released)
init_model()
