复制代码 代码如下:
#!/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_())