2014-10-07 115 views
0

我正在嘗試創建一個GUI窗口,其中打開一箇中央窗口小部件,顯示可供選擇的幾個選項。每個選項都會根據用戶的選擇用新窗口替換中央小部件。與PyCharm和QtDesigner等程序的開放類似。PySide - 重置中央窗口小部件中的主窗口中央窗口小部件

目前我無法完成這項工作。這是我試過的:

from PySide import QtCore, QtGui 
import sys 

class ControlMainWidget(QtGui.QWidget): 
    def __init__(self, parent=None, Widg = Opener()): 
     super(ControlMainWidget, self).__init__(parent) 
     self.widget = Widg 
     self.widget.setupUi(self) 
     if isinstance(Widg, Opener): 
      print(1) 
      QtCore.QObject.connect(self.widget.toolButton_3, QtCore.SIGNAL('clicked()'), MainWidgetChange(parent, widg=StatementView())) 
     print(2) 


class ControlMainWindow(QtGui.QMainWindow): 
    def __init__(self, parent=None): 
     super(ControlMainWindow, self).__init__(parent) 
     self.ui = Ui_MainWindow() 
     self.ui.setupUi(self) 

def MainWidgetChange(Window, widg = Opener()): 
    the_widget = ControlMainWidget(parent = Window, Widg = widg) 

    Window.setCentralWidget(the_widget) 

if __name__ == '__main__': 
    app = QtGui.QApplication(sys.argv) 
    mySW = ControlMainWindow() 
    MainWidgetChange(mySW) 
    mySW.show() 
    sys.exit(app.exec_()) 

Opener和StatementView是使用qtDesigner製作的類,所以有點羅嗦。我將包括開瓶器,但StatementView約250線,所以我會離開這裏。

class Opener(object): 
    def setupUi(self, Form): 
     Form.setObjectName("Form") 
     Form.resize(450, 400) 
     Form.setMinimumSize(QtCore.QSize(450, 400)) 
     Form.setMaximumSize(QtCore.QSize(450, 400)) 
     self.gridLayout = QtGui.QGridLayout(Form) 
     self.gridLayout.setObjectName("gridLayout") 
     self.toolButton = QtGui.QToolButton(Form) 
     self.toolButton.setMinimumSize(QtCore.QSize(150, 150)) 
     self.toolButton.setObjectName("toolButton") 
     self.gridLayout.addWidget(self.toolButton, 0, 0, 1, 1) 
     self.toolButton_2 = QtGui.QToolButton(Form) 
     self.toolButton_2.setMinimumSize(QtCore.QSize(150, 150)) 
     self.toolButton_2.setObjectName("toolButton_2") 
     self.gridLayout.addWidget(self.toolButton_2, 0, 1, 1, 1) 
     self.toolButton_3 = QtGui.QToolButton(Form) 
     self.toolButton_3.setMinimumSize(QtCore.QSize(150, 150)) 
     self.toolButton_3.setObjectName("toolButton_3") 
     self.gridLayout.addWidget(self.toolButton_3, 1, 0, 1, 1) 
     self.toolButton_4 = QtGui.QToolButton(Form) 
     self.toolButton_4.setMinimumSize(QtCore.QSize(150, 150)) 
     self.toolButton_4.setObjectName("toolButton_4") 
     self.gridLayout.addWidget(self.toolButton_4, 1, 1, 1, 1) 

     self.retranslateUi(Form) 
     QtCore.QMetaObject.connectSlotsByName(Form) 


    def retranslateUi(self, Form): 
     Form.setWindowTitle(QtGui.QApplication.translate("Form", "Form", None, QtGui.QApplication.UnicodeUTF8)) 
     self.toolButton.setText(QtGui.QApplication.translate("Form", "Tables", None, QtGui.QApplication.UnicodeUTF8)) 
     self.toolButton_2.setText(QtGui.QApplication.translate("Form", "Graphs", None, QtGui.QApplication.UnicodeUTF8)) 
     self.toolButton_3.setText(QtGui.QApplication.translate("Form", "Statements", None, QtGui.QApplication.UnicodeUTF8)) 
     self.toolButton_4.setText(QtGui.QApplication.translate("Form", "Modelling", None, QtGui.QApplication.UnicodeUTF8)) 

此刻的窗口加載與開瓶器爲中心的小部件 - 我還可以硬編碼它來設置StatementView爲無差錯的中央部件。

但是,當我使用上述功能時,在開啓器中點擊工具按鈕時,什麼都不會發生。我試圖取代這一行:

QtCore.QObject.connect(self.widget.toolButton_3, QtCore.SIGNAL('clicked()'), MainWidgetChange(parent, widg=StatementView()))

QtCore.QObject.connect(self.widget.toolButton_3, QtCore.SIGNAL('clicked()'), MainWidgetChange(self.parent, widg=StatementView()))

會拋出以下錯誤:

Traceback (most recent call last): 
    File "/home/milo/Documents/Codes/Statements/New test code/mainui2.py", line 593, in <module> 
    MainWidgetChange(mySW) 
    File "/home/milo/Documents/Codes/Statements/New test code/mainui2.py", line 586, in MainWidgetChange 
    the_widget = ControlMainWidget(parent = Window, Widg = widg) 
    File "/home/milo/Documents/Codes/Statements/New test code/mainui2.py", line 575, in __init__ 
    QtCore.QObject.connect(self.widget.toolButton_3, QtCore.SIGNAL('clicked()'), MainWidgetChange(self.parent, widg=StatementView())) 
    File "/home/milo/Documents/Codes/Statements/New test code/mainui2.py", line 586, in MainWidgetChange 
    the_widget = ControlMainWidget(parent = Window, Widg = widg) 
    File "/home/milo/Documents/Codes/Statements/New test code/mainui2.py", line 570, in __init__ 
    super(ControlMainWidget, self).__init__(parent) 
TypeError: 'PySide.QtGui.QWidget' called with wrong argument types: 
    PySide.QtGui.QWidget(builtin_function_or_method) 
Supported signatures: 
    PySide.QtGui.QWidget(PySide.QtGui.QWidget = None, PySide.QtCore.Qt.WindowFlags = 0) 

,並無法加載主窗口。

那麼有沒有一種標準的做法,我錯過了?我不確定此刻還有什麼可以嘗試的。

回答

0

固定!我忘了連接事件應該使用函數作爲對象(如不在括號/參數中) - 我在lambda中的連接事件中封裝了函數。現在所有的作品。

所以:

QtCore.QObject.connect(self.widget.toolButton_3, QtCore.SIGNAL('clicked()'), MainWidgetChange(parent, widg=StatementView()))

要:

QtCore.QObject.connect(self.widget.toolButton_3, QtCore.SIGNAL('clicked()'), lambda: MainWidgetChange(parent, widg=StatementView()))

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