Question

我想知道如何使用QtDesigner创建的.ui文件生成OOP样式的Python代码。

我想说的是pyuic4生成的代码不是OOP样式：小部件不会成为QtGui类的子类。代码很难阅读和扩展。

我想要封装所有子窗口小部件，布局和函数的类。

让我们看一个简单的例子。这个主窗口包含一个滑块和一个液晶显示器，它们以明显的方式连接。

首先，这是pyuic4生成的代码：

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_())

我手动将其编辑为我想要的样式：

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_())

这个可以由代码生成器完成而无需枯燥的编辑。我的问题是：是否有一个这样的代码生成器？

Answer 1

您可以使用多重继承（请参阅Using Qt Designer in PyQt4了解可能的方法）：

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)

尽管如此，这两种方法都是OOP风格。他们每个人都有利弊。

不要读取或编辑自动生成的文件。

Answer 2

您甚至不必从ui文件生成python文件：使用uic模块

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)

用于OOP风格的Qt .ui文件的Python代码生成器？

2 个答案: