代码之家 › 专栏 › 技术社区 › Rodolfo

Python Tkinter-将控制器作为Tkinter帧的参数传递

parameter-passing arguments tkinter class python

Rodolfo · 技术社区 · 1 年前

我有一个主课叫 应用程序 它调用4个控制器。方法 从home_page()开始 创建类型为的对象主页我希望这个对象能够访问所有4个控制器,我将把它们作为参数传递。方法如下:

    def start_from_home_page(self, fileSystemController, widgetController, logicController):
        from pages.HomePage import HomePage
        self.homePage = HomePage(self, fileSystemController, widgetController, logicController)
        self.homePage.grid(row = 0, column = 0, sticky = 'nsew')
        self.homePage.tkraise()

这是 “应用程序” 班

class App(ctk.CTk):
    def __init__(self, title, dim):

        # main setup
        super().__init__()
        self.title(title)
        self.geometry(f'{dim[0]}x{dim[1]}')
        self.minsize(dim[0],dim[1])
        

        os.chdir('/Users/mauri5566/Desktop/AST-CVE')

        self.widgetController = WidgetController(self)
        self.fileSystemController = FileSystemController(self)
        self.logicController = LogicController(self)
        self.navigationController = NavigationController(self)

        self.navigationController.start_from_home_page(self.fileSystemController, self.widgetController, self.logicController)

        self.mainloop()

App('AST-CVE', (1000,800))

下面的代码显示了HomePage类的初始部分(它继承自ctk.CTkFrame)。我得到了以下错误:

bad screen distance ".!filesystemcontroller"

这是因为第三个参数应该是框架的宽度。然而,我不需要这样做,我只想让类通过将它们作为参数传递来访问控制器,我该怎么做?

这是主页类别:

class HomePage(ctk.CTkFrame):
    def __init__(self,  navigationController: NavigationController,
                        fileSystemController: FileSystemController,
                        widgetController: WidgetController,
                        logicController: LogicController):
        super().__init__(navigationController, fileSystemController, widgetController, logicController)

为了清楚起见,这就是ctk的方式。CTkFrame对象的结构如下:

class CTkFrame(CTkBaseClass):
    
    def __init__(self,
                 master: Any,
                 width: int = 200,
                 height: int = 200,
                 corner_radius: Optional[Union[int, str]] = None,
                 border_width: Optional[Union[int, str]] = None,

                 bg_color: Union[str, Tuple[str, str]] = "transparent",
                 fg_color: Optional[Union[str, Tuple[str, str]]] = None,
                 border_color: Optional[Union[str, Tuple[str, str]]] = None,

                 background_corner_colors: Union[Tuple[Union[str, Tuple[str, str]]], None] = None,
                 overwrite_preferred_drawing_method: Union[str, None] = None,
                 **kwargs):

1 回复 | 直到 1 年前

Bryan Oakley 1 年前

你不应该把这些论点传递给 super.__init__ 。没有必要这样做,因为超类对它们一无所知。

您只需要在自定义中保存对它们的引用 __init__ :

class HomePage(ctk.CTkFrame):
    def __init__(self,  navigationController: NavigationController,
                        fileSystemController: FileSystemController,
                        widgetController: WidgetController,
                        logicController: LogicController):
        super().__init__()
        self.navigationController = navigationController
        self.fileSystemController = fileSystemController
        self.widgetController = widgetController
        self.logicController = logicController

但是,由于您的实例 app 具有对所有这些实例的引用,您只需传递的实例 应用程序 然后通过它引用它们。