Python InstanceContainer.setSettingValue方法代码示例

# 需要导入模块: from UM.Settings.InstanceContainer import InstanceContainer [as 别名]
# 或者: from UM.Settings.InstanceContainer.InstanceContainer import setSettingValue [as 别名]
    def read(self, file_name):
        if file_name.split(".")[-1] != "ini":
            return None
        Logger.log("i", "Importing legacy profile from file " + file_name + ".")
        profile = InstanceContainer("Imported Legacy Profile") #Create an empty profile.

        parser = configparser.ConfigParser(interpolation = None)
        try:
            with open(file_name) as f:
                parser.readfp(f) #Parse the INI file.
        except Exception as e:
            Logger.log("e", "Unable to open legacy profile %s: %s", file_name, str(e))
            return None

        #Legacy Cura saved the profile under the section "profile_N" where N is the ID of a machine, except when you export in which case it saves it in the section "profile".
        #Since importing multiple machine profiles is out of scope, just import the first section we find.
        section = ""
        for found_section in parser.sections():
            if found_section.startswith("profile"):
                section = found_section
                break
        if not section: #No section starting with "profile" was found. Probably not a proper INI file.
            return None

        try:
            with open(os.path.join(PluginRegistry.getInstance().getPluginPath("LegacyProfileReader"), "DictionaryOfDoom.json"), "r", -1, "utf-8") as f:
                dict_of_doom = json.load(f) #Parse the Dictionary of Doom.
        except IOError as e:
            Logger.log("e", "Could not open DictionaryOfDoom.json for reading: %s", str(e))
            return None
        except Exception as e:
            Logger.log("e", "Could not parse DictionaryOfDoom.json: %s", str(e))
            return None

        defaults = self.prepareDefaults(dict_of_doom)
        legacy_settings = self.prepareLocals(parser, section, defaults) #Gets the settings from the legacy profile.

        #Check the target version in the Dictionary of Doom with this application version.
        if "target_version" not in dict_of_doom:
            Logger.log("e", "Dictionary of Doom has no target version. Is it the correct JSON file?")
            return None
        if InstanceContainer.Version != dict_of_doom["target_version"]:
            Logger.log("e", "Dictionary of Doom of legacy profile reader (version %s) is not in sync with the current instance container version (version %s)!", dict_of_doom["target_version"], str(InstanceContainer.Version))
            return None

        if "translation" not in dict_of_doom:
            Logger.log("e", "Dictionary of Doom has no translation. Is it the correct JSON file?")
            return None
        current_printer = Application.getInstance().getGlobalContainerStack().findContainer({ }, DefinitionContainer)
        for new_setting in dict_of_doom["translation"]: #Evaluate all new settings that would get a value from the translations.
            old_setting_expression = dict_of_doom["translation"][new_setting]
            compiled = compile(old_setting_expression, new_setting, "eval")
            try:
                new_value = eval(compiled, {"math": math}, legacy_settings) #Pass the legacy settings as local variables to allow access to in the evaluation.
                value_using_defaults = eval(compiled, {"math": math}, defaults) #Evaluate again using only the default values to try to see if they are default.
            except Exception: #Probably some setting name that was missing or something else that went wrong in the ini file.
                Logger.log("w", "Setting " + new_setting + " could not be set because the evaluation failed. Something is probably missing from the imported legacy profile.")
                continue
            if new_value != value_using_defaults and current_printer.findDefinitions(key = new_setting).default_value != new_value: #Not equal to the default in the new Cura OR the default in the legacy Cura.
                profile.setSettingValue(new_setting, new_value) #Store the setting in the profile!

        if len(profile.getChangedSettings()) == 0:
            Logger.log("i", "A legacy profile was imported but everything evaluates to the defaults, creating an empty profile.")
        profile.setDirty(True)
        return profile