Manual de Calibre | Page 193

Manual de usuario de calibre, Publicación 2.73.0 The reason for having two classes is that it allows the command line calibre utilities to run without needing to load the GUI libraries. ''' name = 'Interface Plugin Demo' description = 'An advanced plugin demo' supported_platforms = ['windows', 'osx', 'linux'] author = 'Kovid Goyal' version = (1, 0, 0) minimum_calibre_version = (0, 7, 53) #: This field defines the GUI plugin class that contains all the code #: that actually does something. Its format is module_path:class_name #: The specified class must be defined in the specified module. actual_plugin = 'calibre_plugins.interface_demo.ui:InterfacePlugin' def is_customizable(self): ''' This method must return True to enable customization via Preferences->Plugins ''' return True def config_widget(self): ''' Implement this method and :meth:`save_settings` in your plugin to use a custom configuration dialog. This method, if implemented, must return a QWidget. The widget can have an optional method validate() that takes no arguments and is called immediately after the user clicks OK. Changes are applied if and only if the method returns True. If for some reason you cannot perform the configuration at this time, return a tuple of two strings (message, details), these will be displayed as a warning dialog to the user and the process will be aborted. The base class implementation of this method raises NotImplementedError so by default no user configuration is possible. ''' # It is important to put this import statement here rather than at the # top of the module as importing the config class will also cause the # GUI libraries to be loaded, which we do not want when using calibre # from the command line from calibre_plugins.interface_demo.config import ConfigWidget return ConfigWidget() def save_settings(self, config_widget): ''' Save the settings specified by the user with config_widget. :param config_widget: The widget returned by :meth:`config_widget`. ''' config_widget.save_settings() # Apply the changes ac = self.actual_plugin_ 1.9. Cursillos 189