PyQt、Qt、一个事件处理程序可处理多个项目

发布于 2024-08-20 12:30:48 字数 831 浏览 3 评论 0原文

我的表单上有几个复选框，我不想为每个复选框编写单独的事件处理程序，因为它们都将实现相同的逻辑。相反，我只想编写一个事件处理程序来了解单击了哪个复选框。

例如，在 Delphi 中，我可以这样使用它：

function click_handler(sender):
begin
    checked_box := sender.tag;
end;

这里我记得某个变量中当前复选框的编号（标签属性是在 Delphi IDE 中手动设置的）。

我进行了搜索，但找不到如何使用 Qt 实现此功能，因为事件处理程序没有 sender 参数。

我是这样实现的，但是不太方便：

# assign handlers (n assignments)
checkbox_1.clicked.connect(self.cb_1_click)
...
checkbox_<n>.clicked.connect(self.cb_<n>_click)

# separate handler for each check box (n functions, doing the same stupid work)
def cb_1_click:
    self.cb_click(sender=1)
...
def cb_<n>_click:
    self.cb_click(sender=n)

# main check box click logic (1 function)
def cb_click(sender):
    # do something common for all checkboxes

谢谢。

原文

I have a couple of checkboxes on my form, and I don't want to write separate event handler for each, because they all will implement the same logic. Instead I want to write just one event handler that will know about what checkbox has been clicked.

E.g. in Delphi I can use it this way:

function click_handler(sender):
begin
    checked_box := sender.tag;
end;

Here I remember current checked box number in some variable (tag property was manually set in Delphi IDE).

I searched and can't find how I can implement this using Qt, because event handlers don't have sender argument.

I implemented it like this, but it's not convenient:

# assign handlers (n assignments)
checkbox_1.clicked.connect(self.cb_1_click)
...
checkbox_<n>.clicked.connect(self.cb_<n>_click)

# separate handler for each check box (n functions, doing the same stupid work)
def cb_1_click:
    self.cb_click(sender=1)
...
def cb_<n>_click:
    self.cb_click(sender=n)

# main check box click logic (1 function)
def cb_click(sender):
    # do something common for all checkboxes

Thank you.

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