問題描述

我正在嘗試使用 pyqt 在單擊 QMainWindow 上的按鈕時顯示自定義 QDialog 窗口.我不斷收到以下錯誤:

I'm trying to use pyqt to show a custom QDialog window when a button on a QMainWindow is clicked. I keep getting the following error:

$ python main.py 
DEBUG: Launch edit window
Traceback (most recent call last):
  File "/home/james/Dropbox/Database/qt/ui_med.py", line 23, in launchEditWindow
    dialog = Ui_Dialog(c)
  File "/home/james/Dropbox/Database/qt/ui_edit.py", line 15, in __init__
    QtGui.QDialog.__init__(self)
TypeError: descriptor '__init__' requires a 'sip.simplewrapper' object but received a 'Ui_Dialog'

我已經閱讀了幾個在線教程，但其中大多數都沒有展示如何使用非內置對話窗口.我使用 pyuic4 為主窗口和對話框生成了代碼.我認為應該是相關代碼如下.我在這里錯過了什么?

I've gone over several online tutorials, but most of them stop just short of showing how to use a non built-in dialog window. I generated the code for both the main window and the dialog using pyuic4. What I think should be the relevant code is below. What am I missing here?

class Ui_Dialog(object):
    def __init__(self, dbConnection):
        QtGui.QDialog.__init__(self)
        global c
        c = dbConnection

class Ui_MainWindow(object):
    def __init__(self, dbConnection):
        global c
        c = dbConnection

    def launchEditWindow(self):
        print "DEBUG: Launch edit window"
        dialog = QtGui.QDialog()
        dialogui = Ui_Dialog(c)
        dialogui = setupUi(dialog)
        dialogui.show()

class StartQT4(QtGui.QMainWindow):
    def __init__(self, parent=None):
        QtGui.QWidget.__init__(self, parent)
        conn = sqlite3.connect('meds.sqlite')
        c = conn.cursor()
        self.ui = Ui_MainWindow(c)
        self.ui.setupUi(self)

def main():
    app = QtGui.QApplication(sys.argv)
    program = StartQT4()
    program.show()
    sys.exit(app.exec_())

if __name__ == '__main__':
    main()

額外的問題:因為看起來你不能在 pyqt 函數回調中傳遞參數，所以將一些本來可以作為參數傳遞的東西(名稱不佳的c")設置為全局，這是獲取信息的最佳方式那些功能?

Bonus question: since it looks like you can't pass arguments in pyqt function callbacks, is setting something which would otherwise be passed as an argument (the poorly named "c") to be global the best way to get information into those functions?

推薦答案

我過去做過這樣的事情，我可以說它有效.假設您的按鈕被稱為按鈕"

I've done like this in the past, and i can tell it works. assuming your button is called "Button"

class Main(QtGui.QMainWindow):
    ''' some stuff '''
    def on_Button_clicked(self, checked=None):
        if checked==None: return
        dialog = QDialog()
        dialog.ui = Ui_MyDialog()
        dialog.ui.setupUi(dialog)
        dialog.setAttribute(QtCore.Qt.WA_DeleteOnClose)
        dialog.exec_()

這適用于我的應用程序，我相信它也應該適用于您的應用程序.希望它會有所幫助，應該非常直接地進行一些更改以將其應用于您的案例.祝大家有個美好的一天.

This works for my application, and I believe it should work with yours as well. hope it'll help, it should be pretty straight forward to do the few changes needed to apply it to your case. have a good day everybody.

這篇關于在 PyQt 中打開第二個窗口的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網！