PyQt4 treewidget 选择改变颜色,并设置可编辑的方法

# -*- coding: utf-8 -*-import sysfrom PySide.QtGui import *from PySide.QtCore import * global Item_tempItem_temp=''  class TreeWidget(QWidget):  def __init__(self):    super(TreeWidget, self).__init__()    self.setWindowTitle('TreeWidget')        self.tree = QTreeWidget() # 实例化一个TreeWidget对象    self.tree.setColumnCount(2) # 设置部件的列数为2    self.tree.setDropIndicatorShown(True)    self.tree.setSelectionMode(QAbstractItemView.ExtendedSelection)    self.tree.setHeaderLabels(['Key', 'Value']) # 设置头部信息对应列的标识符            # 设置root为self.tree的子树，故root是根节点    root = QTreeWidgetItem(self.tree)    root.setText(0, 'root') # 设置根节点的名称        root.setCheckState(0, Qt.Unchecked);    root.setFlags(root.flags() | Qt.ItemIsEditable)    #设置可编辑        # 为root节点设置子结点    child1 = QTreeWidgetItem(root)    child1.setText(0, 'child1')    child1.setText(1, 'name1')    child1.setCheckState(0, Qt.Unchecked);                child2 = QTreeWidgetItem(root)    child2.setText(0, 'child2')    child2.setText(1, 'name2')    child2.setCheckState(0, Qt.Unchecked);        child3 = QTreeWidgetItem(root)    child3.setText(0, 'child3')    child3.setCheckState(0, Qt.Unchecked);        child4 = QTreeWidgetItem(child3)        child4.setText(0, 'child4')    child4.setToolTip(0,'child4')    #child4.statusTip(0)    QToolTip.setFont(QFont('OldEnglish', 30))    child4.setText(1, 'name4')    child4.setToolTip(1,'name4')    child4.setCheckState(0, Qt.Unchecked);    child5 = QTreeWidgetItem(child3)    child5.setText(0, 'child5')    child5.setToolTip(0,'child5')    #child5.statusTip(0)    QToolTip.setFont(QFont('OldEnglish', 30))    child5.setText(1, 'name5')    child5.setToolTip(1,'name5')    child5.setCheckState(0, Qt.Unchecked);        button=QPushButton("test")    self.lay=QVBoxLayout()    self.lay.addWidget(button)    self.lay.addWidget(self.tree)    button.clicked.connect(self.getText)    #self.tree.itemChanged.connect(self.handleChanged)    self.tree.itemDoubleClicked.connect(self.handleChanged)    #self.tree.itemDoubleClicked.connect(self.handleChanged)        self.tree.addTopLevelItem(root)    self.setLayout(self.lay) # 将tree部件设置为该窗口的核心框架  def handleChanged(self, item, column):    #print dir(item)    global Item_temp    if Item_temp=="":      Item_temp=(item,column)      item.setBackground(column,QColor(100,150,50))      print Item_temp    else:      print Item_temp      Item_temp[0].setBackground(Item_temp[1],QColor(255,255,255))      item.setBackground(column,QColor(120,150,50))      Item_temp=(item,column)      print Item_temp        #self.tree.selectedItems()    #item.setBackgroundColor(column,QColor(40,150,50))    #col=QColor(190,150,50)    #item.setForeground(column,QBrush(col))        #print dir(item)           def getText(self):    t=QTreeWidgetItemIterator(self.tree);    #print dir(QTreeWidgetItemIterator)    while(t):      try:        print t.value().text(0)      except:        break      t.next()      #print t    app = QApplication(sys.argv)#app.aboutToQuit.connect(app.deleteLater)tp = TreeWidget()tp.show()#app.installEventFilter(tp)app.exec_()