【PyQt4 实例30】改变鼠标形状

# -*- coding: utf-8 -*-
from PyQt4.QtGui import *
from PyQt4.QtCore import *
import sys
QTextCodec.setCodecForTr(QTextCodec.codecForName("utf8"))

class EventFilter(QDialog):
def __init__(self,parent=None):
super(EventFilter,self).__init__(parent)
self.setWindowTitle(self.tr("改变鼠标形状"))

self.ArrowButton = QPushButton(self.tr("Arrow"))
self.upArrowButton = QPushButton(self.tr("upArrow"))
self.CrossButton = QPushButton(self.tr("upArrow"))

layout = QGridLayout(self)
layout.addWidget(self.ArrowButton,0,0)
layout.addWidget(self.upArrowButton,0,1)
layout.addWidget(self.CrossButton,0,2)

self.connect(self.ArrowButton,SIGNAL("clicked()"),self.slotArrow)
self.connect(self.upArrowButton,SIGNAL("clicked()"),self.slotupArrow)
self.connect(self.CrossButton,SIGNAL("clicked()"),self.slotCross)

self.resize(300,200)

def slotArrow(self):
self.setCursor(Qt.ArrowCursor)

def slotupArrow(self):
self.setCursor(Qt.UpArrowCursor)

def slotCross(self):
self.setCursor(Qt.CrossCursor)

app=QApplication(sys.argv)
dialog=EventFilter()
dialog.show()
app.exec_()