針對OOP風格的Qt .ui文件的Python代碼生成器？

Question

我想知道如何從我用QtDesigner創建的.ui文件生成OOP風格的Python代碼。

我想說的是，pyuic4生成的代碼不是OOP風格：小部件不會成爲QtGui類的子類。代碼很難閱讀和擴展。

我想要封裝所有子窗口小部件，佈局和函數的類。

我們來看一個簡單的例子。這個主窗口包含一個滑塊和一個液晶顯示器，並且它們以明顯的方式相連。

首先，這是由pyuic4生成的代碼：

from PyQt4 import QtCore, QtGui 

class Ui_MainWindow(object): 
    def setupUi(self, MainWindow): 
     MainWindow.setObjectName("MainWindow") 
     MainWindow.resize(268, 186) 
     self.centralwidget = QtGui.QWidget(MainWindow) 
     self.centralwidget.setObjectName("centralwidget") 
     self.gridLayout = QtGui.QGridLayout(self.centralwidget) 
     self.gridLayout.setObjectName("gridLayout") 
     self.horizontalSlider = QtGui.QSlider(self.centralwidget) 
     self.horizontalSlider.setOrientation(QtCore.Qt.Vertical) 
     self.horizontalSlider.setObjectName("horizontalSlider") 
     self.gridLayout.addWidget(self.horizontalSlider, 0, 1, 1, 1) 
     self.lcdNumber = QtGui.QLCDNumber(self.centralwidget) 
     self.lcdNumber.setObjectName("lcdNumber") 
     self.gridLayout.addWidget(self.lcdNumber, 0, 2, 1, 1) 
     MainWindow.setCentralWidget(self.centralwidget) 
     self.menubar = QtGui.QMenuBar(MainWindow) 
     self.menubar.setGeometry(QtCore.QRect(0, 0, 268, 25)) 
     self.menubar.setObjectName("menubar") 
     MainWindow.setMenuBar(self.menubar) 
     self.statusbar = QtGui.QStatusBar(MainWindow) 
     self.statusbar.setObjectName("statusbar") 
     MainWindow.setStatusBar(self.statusbar) 

     self.retranslateUi(MainWindow) 
     QtCore.QObject.connect(self.horizontalSlider, QtCore.SIGNAL("valueChanged(int)"), self.lcdNumber.display) 
     QtCore.QMetaObject.connectSlotsByName(MainWindow) 

    def retranslateUi(self, MainWindow): 
     MainWindow.setWindowTitle(QtGui.QApplication.translate("MainWindow", "MainWindow", None, QtGui.QApplication.UnicodeUTF8)) 


if __name__ == "__main__": 
    import sys 
    app = QtGui.QApplication(sys.argv) 
    MainWindow = QtGui.QMainWindow() 
    ui = Ui_MainWindow() 
    ui.setupUi(MainWindow) 
    MainWindow.show() 
    sys.exit(app.exec_()) 

我手動編輯的，以我的風格麼：

from PyQt4 import QtCore, QtGui 

class MainWindow(QtGui.QMainWindow): 
    def __init__(self): 
     QtGui.QMainWindow.__init__(self) 

     self.setObjectName("MainWindow") 
     self.resize(268, 186) 
     self.centralwidget = QtGui.QWidget(self) 
     self.centralwidget.setObjectName("centralwidget") 
     self.gridLayout = QtGui.QGridLayout(self.centralwidget) 
     self.gridLayout.setObjectName("gridLayout") 
     self.horizontalSlider = QtGui.QSlider(self.centralwidget) 
     self.horizontalSlider.setOrientation(QtCore.Qt.Vertical) 
     self.horizontalSlider.setObjectName("horizontalSlider") 
     self.gridLayout.addWidget(self.horizontalSlider, 0, 1, 1, 1) 
     self.lcdNumber = QtGui.QLCDNumber(self.centralwidget) 
     self.lcdNumber.setObjectName("lcdNumber") 
     self.gridLayout.addWidget(self.lcdNumber, 0, 2, 1, 1) 
     self.setCentralWidget(self.centralwidget) 
     self.menubar = QtGui.QMenuBar(self) 
     self.menubar.setGeometry(QtCore.QRect(0, 0, 268, 25)) 
     self.menubar.setObjectName("menubar") 
     self.setMenuBar(self.menubar) 
     self.statusbar = QtGui.QStatusBar(self) 
     self.statusbar.setObjectName("statusbar") 
     self.setStatusBar(self.statusbar) 

     self.retranslateUi() 

     QtCore.QObject.connect(self.horizontalSlider, QtCore.SIGNAL("valueChanged(int)"), self.lcdNumber.display) 
     QtCore.QMetaObject.connectSlotsByName(self) 

    def retranslateUi(self): 
     self.setWindowTitle(QtGui.QApplication.translate("MainWindow", "MainWindow", None, QtGui.QApplication.UnicodeUTF8)) 


if __name__ == "__main__": 
    import sys 
    app = QtGui.QApplication(sys.argv) 
    main_window = MainWindow() 
    main_window.show() 
    sys.exit(app.exec_()) 

這可以由代碼生成器來完成，而不需要枯燥的編輯。我的問題是：是否有這樣的代碼生成器可用？

Answer 1

您可以使用多重繼承來代替（見Using Qt Designer in PyQt4可能的方法）：

from PyQt4.QtGui import QDialog 
from ui_imagedialog import Ui_ImageDialog 

class ImageDialog(QDialog, Ui_ImageDialog): 
    def __init__(self): 
     QDialog.__init__(self) 

     # Set up the user interface from Designer. 
     self.setupUi(self) 

     # Make some local modifications. 
     self.colorDepthCombo.addItem("2 colors (1 bit per pixel)") 

     # Connect up the buttons. 
     self.okButton.clicked.connect(self.accept) 
     self.cancelButton.clicked.connect(self.reject) 

然而，這兩種方法都是OOP風格。他們每個人都有優點和缺點。

而且不要讀取或編輯自動生成的文件。

Answer 2

你甚至不必產生從UI文件蟒蛇文件：使用uic模塊

import os 
from PyQt4 import QtGui, QtCore, uic 

class MyMainWindow(QtGui.QMainWindow): 
    def __init__(self, parent): 
    QtGui.QMainWindow.__init__(self, parent) 
    # We want to inheritate from MyMainWindow.ui 
    uic.loadUi(os.path.join(os.path.dirname(os.path.abspath(__file__)),"MyMainWindow.ui"), self) 

    # All widgets are available as classic attributes: 
    self.okButton.clicked.connect(self.accept)