#!/usr/bin/python  #-*-coding:utf-8-*- from PyQt4.QtGui import * from PyQt4.QtCore import * from PyQt4.Qt import * class CLabel(QWidget):  signalLabelPress = pyqtSignal()  def __init__(self,parent = None):   super(CLabel,self).__init__(parent)   self.initVariable()   self.initSetupUi()   #self.m_mouseEnterFlag = False   #self.m_mousePressFlag = True   #pointer members   #self.m_pLabelIcon = QLabel(self)   #self.m_pLabelText = QLabel(self)  def setPixmap(self,pixmap):   self.m_pLabelIcon.setPixmap(pixmap.scaled(QSize(30, 30), Qt.KeepAspectRatio, Qt.SmoothTransformation))    def setText(self,text):   self.m_pLabelText.setText(text)    def setMouseEnterFlag(self, flag):   self.m_mouseEnterFlag = flag   self.update()    def setMousePressFlag(self, flag):   self.m_mousePressFlag = flag   self.update()    def enterEvent(self,event):   if(~self.getMousePressFlag()):    self.setMouseEnterFlag(True)   self.setCursor(Qt.PointingHandCursor)    def leaveEvent(self,event):   self.setMouseEnterFlag(False)    def mousePressEvent(self,e):    if(e.button() == Qt.LeftButton):      self.setMousePressFlag(True)    self.signalLabelPress.emit()    def paintEvent(self,e):    painter = QPainter(self)   if(self.getMouseEnterFlag()):      self.paintWidget(50, painter)     elif(self.getMousePressFlag()):      self.paintWidget(80, painter)     QWidget.paintEvent(self,e)    def initVariable(self):    self.setMouseEnterFlag(False)   self.setMousePressFlag(False)    def initSetupUi(self):    self.createFrame()   self.createWidget()   self.createLayout()    def createFrame(self):    self.setStyleSheet("QWidget background:transparentborder:0pxcolor:whitefont-weight:boldfont-size:16px")    def createWidget(self):    self.m_pLabelIcon =  QLabel(self)   self.m_pLabelText =  QLabel(self)    def createLayout(self):   self.m_pHLayout = QHBoxLayout()   self.m_pHLayout.setSpacing(10)   self.m_pHLayout.setContentsMargins(QMargins(5, 0, 5, 0))   self.m_pHLayout.addWidget(self.m_pLabelIcon)   self.m_pHLayout.addWidget(self.m_pLabelText)   self.m_pHLayout.addStretch()   self.setLayout(self.m_pHLayout)    def paintWidget(self,transparency,device):  #QPainter *   #self.pen = QPen(Qt.NoBrush)   #self.pen.setWidth(1)   device.setPen(Qt.NoPen)   self.linear = QLinearGradient(QPointF(self.rect().topLeft()), QPointF(self.rect().bottomLeft()))   self.linear.setColorAt(0, QColor(255, 255, 255, transparency))   self.brush = QBrush(self.linear)   device.setBrush(self.brush)   device.drawRoundedRect(self.rect(), 2, 2)    def getMouseEnterFlag(self):    return self.m_mouseEnterFlag    def getMousePressFlag(self):    return self.m_mousePressFlag     if __name__ == '__main__':  import sys  app = QApplication(sys.argv)  Label = CLabel()  Label.show()  sys.exit(app.exec_())