# -*- coding: utf-8 -*-  

from PyQt4.QtGui import *  

from PyQt4.QtCore import *  

import sys  

QTextCodec.setCodecForTr(QTextCodec.codecForName("utf8"))  

class Palette(QDialog):  

    def __init__(self,parent=None):  

        super(Palette,self).__init__(parent)  

        self.setWindowTitle(self.tr("QPalette对话框"))  

        mainLayout=QHBoxLayout(self)  

        self.ctrlFrame=QFrame()  

        self.contentFrame=QFrame()  

        self.contentFrame.setAutoFillBackground(True)  

        self.createCtrlFrame()  

        self.createContentFrame()  

        mainLayout.addWidget(self.ctrlFrame)  

        mainLayout.addWidget(self.contentFrame)          

    def createCtrlFrame(self):  

        label1=QLabel("QPalette.Window")  

        self.windowComboBox=QComboBox()  

        label2=QLabel("QPalette.WindowText")  

        self.windowTextComboBox=QComboBox()  

        label3=QLabel("QPalette.Button")  

        self.buttonComboBox=QComboBox()  

        label4=QLabel("QPalette.ButtonText")  

        self.buttonTextComboBox=QComboBox()  

        label5=QLabel("QPalette.Base")  

        self.baseComboBox=QComboBox()  

        self.fillColorList(self.windowComboBox)  

        self.fillColorList(self.windowTextComboBox)  

        self.fillColorList(self.buttonComboBox)  

        self.fillColorList(self.buttonTextComboBox)  

        self.fillColorList(self.baseComboBox)  

        self.connect(self.windowComboBox,SIGNAL("currentIndexChanged(int)"),self.slotWindow)  

        self.connect(self.windowTextComboBox,SIGNAL("currentIndexChanged(int)"),self.slotWindowText)  

        self.connect(self.buttonComboBox,SIGNAL("currentIndexChanged(int)"),self.slotButton)  

        self.connect(self.buttonTextComboBox,SIGNAL("currentIndexChanged(int)"),self.slotButtonText)  

        self.connect(self.baseComboBox,SIGNAL("currentIndexChanged(int)"),self.slotBase)  

        gridLayout=QGridLayout()  

        gridLayout.addWidget(label1,0,0)  

        gridLayout.addWidget(self.windowComboBox,0,1)  

        gridLayout.addWidget(label2,1,0)  

        gridLayout.addWidget(self.windowTextComboBox,1,1)  

        gridLayout.addWidget(label3,2,0)  

        gridLayout.addWidget(self.buttonComboBox,2,1)  

        gridLayout.addWidget(label4,3,0)  

        gridLayout.addWidget(self.buttonTextComboBox,3,1)  

        gridLayout.addWidget(label5,4,0)  

        gridLayout.addWidget(self.baseComboBox)  

        self.ctrlFrame.setLayout(gridLayout)  

    def fillColorList(self,comboBox):  

        colorList=QColor.colorNames()  

        for color in colorList:  

            pix=QPixmap(QSize(70,20))  

            pix.fill(QColor(color))  

            comboBox.addItem(QIcon(pix),color)  

            comboBox.setIconSize(QSize(70,20))  

            comboBox.setSizeAdjustPolicy(QComboBox.AdjustToContents)  

    def createContentFrame(self):  

        label1=QLabel(self.tr("请选择一个值"))  

        valueComboBox=QComboBox()  

        valueComboBox.addItem("1")  

        valueComboBox.addItem("2")  

        label2=QLabel(self.tr("请输入字符串"))  

        stringLineEdit=QLineEdit()  

        textEditText=QTextEdit(self.tr("请输入"))  

        hLayout=QHBoxLayout()  

        okButton=QPushButton(self.tr("确定"))  

        cancelButton=QPushButton(self.tr("取消"))  

        hLayout.addStretch()  

        hLayout.addWidget(okButton)  

        hLayout.addWidget(cancelButton)  

        gridLayout=QGridLayout()  

        gridLayout.addWidget(label1,0,0)  

        gridLayout.addWidget(valueComboBox,0,1)  

        gridLayout.addWidget(label2,1,0)  

        gridLayout.addWidget(stringLineEdit,1,1)  

        gridLayout.addWidget(textEditText,2,0,1,2)  

        gridLayout.addLayout(hLayout,3,0,1,2)  

        self.contentFrame.setLayout(gridLayout)  

    def slotWindow(self):  

        colorList=QColor.colorNames()  

        color=QColor(colorList[self.windowComboBox.currentIndex()])  

        p=self.contentFrame.palette()  

        p.setColor(QPalette.Window,color)  

        self.contentFrame.setPalette(p)  

    def slotWindowText(self):  

        colorList=QColor.colorNames()  

        color=QColor(colorList[self.windowComboBox.currentIndex()])  

        p=self.contentFrame.palette()  

        p.setColor(QPalette.WindowText,color)  

        self.contentFrame.setPalette(p)  

    def slotButton(self):  

        colorList=QColor.colorNames()  

        color=QColor(colorList[self.windowComboBox.currentIndex()])  

        p=self.contentFrame.palette()  

        p.setColor(QPalette.Button,color)  

        self.contentFrame.setPalette(p)  

    def slotButtonText(self):  

        colorList=QColor.colorNames()  

        color=QColor(colorList[self.windowComboBox.currentIndex()])  

        p=self.contentFrame.palette()  

        p.setColor(QPalette.ButtonText,color)  

        self.contentFrame.setPalette(p)  

    def slotBase(self):  

        colorList=QColor.colorNames()  

        color=QColor(colorList[self.windowComboBox.currentIndex()])  

        p=self.contentFrame.palette()  

        p.setColor(QPalette.Base,color)  

        self.contentFrame.setPalette(p)  

app=QApplication(sys.argv)  

main=Palette()  

main.show()  

app.exec_()  

 截图如下:

pyqt界面颜色替换学习（pyqt精彩实例处学习）