在 PyQT 中使用 Newstyle 信号传递参数 [英] Passing Arguments with Newstyle signals in PyQT

问题描述

我在 PyQT 中使用一组动态创建的按钮时遇到了一些问题.

I've been having some trouble with a set of dynamically created buttons in PyQT.

我正在使用列表来创建对应于不同值的按钮.因为每个按钮都不同，所以我需要让它们将参数传递给Button Clicked"函数，分别标识它们自己，以便我可以对它们执行不同的操作.这是我目前所拥有的:

I'm using a list to create buttons corresponding to different values. Because each button is different, I need to have them pass an argument to the "Button Clicked" function identifying themselves separately so I can perform different actions with them. Here is what I have so far:

for x in self.buttons:
    name = str(x)
    button = QtGui.QPushButton(Frame)
    button.setText(name)
    cp_result = self.changeProject(name)
    if cp_result is None:
        print 'changeProject(%s) is None!', name
    else:
        print 'changeProject(%s) is OK (%r)', name, cp_result
        #button.clicked.connect(cp_result)
    setattr(self, "btn_%s" % name, button)
    self.btnList.append(button)

def changeProject(self, name):
    for x in self.btnList:
        if x.isDown:
            #Change UI Frame to blahblah
    return 'A String'

与 Alex 合作，这是最新的代码，在 changeProject 上测试返回值，显然不能是字符串，但我仍然需要确定在自动生成的按钮之间按下了哪个按钮.

Working with Alex, this is the latest code, testing a return value on changeProject, which clearly cannot be a string, but I still need to determine which button is pressed between the auto-generated buttons.

当前错误:TypeError:connect() 槽参数应该是可调用的或信号，而不是 'str'

推荐答案

感谢您的帮助.我偶然发现了 QSignalMapper，结果证明这正是我所需要的.

Thanks for the assistance. I stumbled QSignalMapper, and this turned out to be exactly what I needed.

http://pysnippet.blogspot.com/2010/06/qsignalmapper-at-your-service.html

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