python - 更改 QTabWidget 选项卡的背景颜色

Question

是否可以在 PYQT4 中更改 QTabWidget 选项卡的背景颜色？有一种方法可以更改文本的颜色，但不能更改选项卡的背景颜色。

我有一个包含多个选项卡的程序，我想为每个级别提供自己的背景颜色。见附件示例。

from PyQt4 import QtCore, QtGui

try:
    _fromUtf8 = QtCore.QString.fromUtf8
except AttributeError:
    _fromUtf8 = lambda s: s

class Ui_Dialog(object):
    def setupUi(self, Dialog):
        Dialog.setObjectName(_fromUtf8("Dialog"))
        Dialog.resize(661, 397)
        self.verticalLayout = QtGui.QVBoxLayout(Dialog)
        self.verticalLayout.setObjectName(_fromUtf8("verticalLayout"))
        self.tabWidget = QtGui.QTabWidget(Dialog)
        self.tabWidget.setObjectName(_fromUtf8("tabWidget"))
        self.tab = QtGui.QWidget()
        self.tab.setObjectName(_fromUtf8("tab"))
        self.verticalLayout_2 = QtGui.QVBoxLayout(self.tab)
        self.verticalLayout_2.setObjectName(_fromUtf8("verticalLayout_2"))
        self.tabWidget_2 = QtGui.QTabWidget(self.tab)
        self.tabWidget_2.setObjectName(_fromUtf8("tabWidget_2"))
        self.tab_3 = QtGui.QWidget()
        self.tab_3.setObjectName(_fromUtf8("tab_3"))
        self.verticalLayout_3 = QtGui.QVBoxLayout(self.tab_3)
        self.verticalLayout_3.setObjectName(_fromUtf8("verticalLayout_3"))
        self.tabWidget_3 = QtGui.QTabWidget(self.tab_3)
        self.tabWidget_3.setObjectName(_fromUtf8("tabWidget_3"))
        self.tab_5 = QtGui.QWidget()
        self.tab_5.setObjectName(_fromUtf8("tab_5"))
        self.verticalLayout_4 = QtGui.QVBoxLayout(self.tab_5)
        self.verticalLayout_4.setObjectName(_fromUtf8("verticalLayout_4"))
        self.tabWidget_4 = QtGui.QTabWidget(self.tab_5)
        self.tabWidget_4.setObjectName(_fromUtf8("tabWidget_4"))
        self.tab_7 = QtGui.QWidget()
        self.tab_7.setObjectName(_fromUtf8("tab_7"))
        self.verticalLayout_5 = QtGui.QVBoxLayout(self.tab_7)
        self.verticalLayout_5.setObjectName(_fromUtf8("verticalLayout_5"))
        self.tabWidget_5 = QtGui.QTabWidget(self.tab_7)
        self.tabWidget_5.setElideMode(QtCore.Qt.ElideRight)
        self.tabWidget_5.setObjectName(_fromUtf8("tabWidget_5"))
        self.tab_9 = QtGui.QWidget()
        self.tab_9.setObjectName(_fromUtf8("tab_9"))
        self.tabWidget_5.addTab(self.tab_9, _fromUtf8(""))
        self.tab_10 = QtGui.QWidget()
        self.tab_10.setObjectName(_fromUtf8("tab_10"))
        self.tabWidget_5.addTab(self.tab_10, _fromUtf8(""))
        self.verticalLayout_5.addWidget(self.tabWidget_5)
        self.tabWidget_4.addTab(self.tab_7, _fromUtf8(""))
        self.tab_8 = QtGui.QWidget()
        self.tab_8.setObjectName(_fromUtf8("tab_8"))
        self.tabWidget_4.addTab(self.tab_8, _fromUtf8(""))
        self.verticalLayout_4.addWidget(self.tabWidget_4)
        self.tabWidget_3.addTab(self.tab_5, _fromUtf8(""))
        self.tab_6 = QtGui.QWidget()
        self.tab_6.setObjectName(_fromUtf8("tab_6"))
        self.tabWidget_3.addTab(self.tab_6, _fromUtf8(""))
        self.verticalLayout_3.addWidget(self.tabWidget_3)
        self.tabWidget_2.addTab(self.tab_3, _fromUtf8(""))
        self.tab_4 = QtGui.QWidget()
        self.tab_4.setObjectName(_fromUtf8("tab_4"))
        self.tabWidget_2.addTab(self.tab_4, _fromUtf8(""))
        self.verticalLayout_2.addWidget(self.tabWidget_2)
        self.tabWidget.addTab(self.tab, _fromUtf8(""))
        self.tab_2 = QtGui.QWidget()
        self.tab_2.setObjectName(_fromUtf8("tab_2"))
        self.tabWidget.addTab(self.tab_2, _fromUtf8(""))
        self.verticalLayout.addWidget(self.tabWidget)
        self.buttonBox = QtGui.QDialogButtonBox(Dialog)
        self.buttonBox.setOrientation(QtCore.Qt.Horizontal)
        self.buttonBox.setStandardButtons(QtGui.QDialogButtonBox.Cancel|QtGui.QDialogButtonBox.Ok)
        self.buttonBox.setObjectName(_fromUtf8("buttonBox"))
        self.verticalLayout.addWidget(self.buttonBox)

        self.retranslateUi(Dialog)
        self.tabWidget.setCurrentIndex(0)
        self.tabWidget_2.setCurrentIndex(0)
        self.tabWidget_3.setCurrentIndex(0)
        self.tabWidget_4.setCurrentIndex(0)
        self.tabWidget_5.setCurrentIndex(0)
        QtCore.QObject.connect(self.buttonBox, QtCore.SIGNAL(_fromUtf8("accepted()")), Dialog.accept)
        QtCore.QObject.connect(self.buttonBox, QtCore.SIGNAL(_fromUtf8("rejected()")), Dialog.reject)
        QtCore.QMetaObject.connectSlotsByName(Dialog)

    def retranslateUi(self, Dialog):
        Dialog.setWindowTitle(QtGui.QApplication.translate("Dialog", "Dialog", None, QtGui.QApplication.UnicodeUTF8))
        self.tabWidget_5.setTabText(self.tabWidget_5.indexOf(self.tab_9), QtGui.QApplication.translate("Dialog", "Tab 9", None, QtGui.QApplication.UnicodeUTF8))
        self.tabWidget_5.setTabText(self.tabWidget_5.indexOf(self.tab_10), QtGui.QApplication.translate("Dialog", "Tab 10", None, QtGui.QApplication.UnicodeUTF8))
        self.tabWidget_4.setTabText(self.tabWidget_4.indexOf(self.tab_7), QtGui.QApplication.translate("Dialog", "Tab 7", None, QtGui.QApplication.UnicodeUTF8))
        self.tabWidget_4.setTabText(self.tabWidget_4.indexOf(self.tab_8), QtGui.QApplication.translate("Dialog", "Tab 8", None, QtGui.QApplication.UnicodeUTF8))
        self.tabWidget_3.setTabText(self.tabWidget_3.indexOf(self.tab_5), QtGui.QApplication.translate("Dialog", "Tab 5", None, QtGui.QApplication.UnicodeUTF8))
        self.tabWidget_3.setTabText(self.tabWidget_3.indexOf(self.tab_6), QtGui.QApplication.translate("Dialog", "Tab 6", None, QtGui.QApplication.UnicodeUTF8))
        self.tabWidget_2.setTabText(self.tabWidget_2.indexOf(self.tab_3), QtGui.QApplication.translate("Dialog", "Tab 3", None, QtGui.QApplication.UnicodeUTF8))
        self.tabWidget_2.setTabText(self.tabWidget_2.indexOf(self.tab_4), QtGui.QApplication.translate("Dialog", "Tab 4", None, QtGui.QApplication.UnicodeUTF8))
        self.tabWidget.setTabText(self.tabWidget.indexOf(self.tab), QtGui.QApplication.translate("Dialog", "Tab 1", None, QtGui.QApplication.UnicodeUTF8))
        self.tabWidget.setTabText(self.tabWidget.indexOf(self.tab_2), QtGui.QApplication.translate("Dialog", "Tab 2", None, QtGui.QApplication.UnicodeUTF8))
#
#------------------------------------------------------------------------------ 
#
#  For Testing
#
        self.tab_33 = QtGui.QWidget()
        self.tabWidget.addTab(self.tab_33, "Hell")
        QColor = QtGui.QColor(255, 85, 0)
        a = self.tabWidget.tabBar()
        a.setTabTextColor(0, QColor)


if __name__ == "__main__":
    import sys
    app = QtGui.QApplication(sys.argv)
    Dialog = QtGui.QDialog()
    ui = Ui_Dialog()
    ui.setupUi(Dialog)
    Dialog.show()
    sys.exit(app.exec_())

Answer 1

您可以使用 qt 样式表来自定义 QTabWidget 的外观:

http://doc.qt.digia.com/4.7-snapshot/stylesheet-examples.html#customizing-qtabwidget-and-qtabbar

例如:

self.tabwidget.setStyleSheet('QTabBar::tab {background-color: red;}')