notepad.py 文件源码

def open_dialog(self):
        """ Open 'Open Dialog Box' """

        if self.has_changed:
            self.save_box(open=True)

        try:
            self.file_path = QtWidgets.QFileDialog.getOpenFileName(self, 'Open File', './',
                                                         filter="All Files(*.*);;Text Files(*.txt)")

            if self.file_path[0]:
                self.file_name = (self.file_path[0].split('/'))[-1]

                self.setWindowTitle("{} - Notepad".format(self.file_name))

                file_open = open(self.file_path[0], 'r+')
                self.statusBar().showMessage('Open... {}'.format(self.file_path[0]))

                with file_open:
                    content = file_open.read()
                    self.text_widget.setPlainText(content)
                    self.need_saving(False)


        except UnicodeDecodeError as why:
            self.error_box(why)
            pass