qtreeview根色

Question

我有一个带有彩色背景的QTreeView但我需要还有根色的.. 我无法这样做。 有人可以帮帮我吗？ 这是代码..

由于

从PyQt4导入QtGui，QtCore

HORIZONTAL_HEADERS =（“Surname”，“Given Name”）

class person_class（object）：     def init （self，sname，fname，isMale）：         self.sname = sname         self.fname = fname         self.isMale = isMale

class TreeItem（object）：     def init （self，person，header，parentItem）：         self.person = person         self.parentItem = parentItem         self.header = header         self.childItems = []

def appendChild(self, item):
    self.childItems.append(item)

def child(self, row):
    return self.childItems[row]

def childCount(self):
    return len(self.childItems)

def columnCount(self):
    return 2

def data(self, column):
    if self.person == None:
        if column == 0:
            return QtCore.QVariant(self.header)
        if column == 1:
            return QtCore.QVariant("")                
    else:
        if column == 0:
            return QtCore.QVariant(self.person.sname)
        if column == 1:
            return QtCore.QVariant(self.person.fname)
    return QtCore.QVariant()

def parent(self):
    return self.parentItem

def row(self):
    if self.parentItem:
        return self.parentItem.childItems.index(self)
    return 0

class treeModel（QtCore.QAbstractItemModel）：     def init （self，parent = None）：         super（treeModel，self）。 init （父）         self.people = []         对于fname，sname，isMale in（（“John”，“Brown”，1），         （“Fred”，“Bloggs”，1），（“Sue”，“Smith”，0））：             person = person_class（s​​name，fname，isMale）             self.people.append（人）

    self.rootItem = TreeItem(None, "ALL", None)
    self.parents = {0 : self.rootItem}
    self.setupModelData()

def columnCount(self, parent=None):
    if parent and parent.isValid():
        return parent.internalPointer().columnCount()
    else:
        return len(HORIZONTAL_HEADERS)

def data(self, index, role):
    if not index.isValid():
        return QtCore.QVariant()

    item = index.internalPointer()
    if role == QtCore.Qt.DisplayRole:
        return item.data(index.column())
    if role == QtCore.Qt.UserRole:
        if item:
            return item.person
    if role == QtCore.Qt.BackgroundRole :
        return QtGui.QColor('pink') 


    return QtCore.QVariant()

#def headerData(self, column, orientation, role):
    #if (orientation == QtCore.Qt.Horizontal and
    #role == QtCore.Qt.DisplayRole):
        #try:
            #return QtCore.QVariant(HORIZONTAL_HEADERS[column])
        #except IndexError:
            #pass

    #return QtCore.QVariant()

def index(self, row, column, parent):
    if not self.hasIndex(row, column, parent):
        return QtCore.QModelIndex()

    if not parent.isValid():
        parentItem = self.rootItem
    else:
        parentItem = parent.internalPointer()

    childItem = parentItem.child(row)
    if childItem:
        return self.createIndex(row, column, childItem)
    else:
        return QtCore.QModelIndex()

def parent(self, index):
    if not index.isValid():
        return QtCore.QModelIndex()

    childItem = index.internalPointer()
    if not childItem:
        return QtCore.QModelIndex()

    parentItem = childItem.parent()

    if parentItem == self.rootItem:
        return QtCore.QModelIndex()

    return self.createIndex(parentItem.row(), 0, parentItem)

def rowCount(self, parent=QtCore.QModelIndex()):
    if parent.column() > 0:
        return 0
    if not parent.isValid():
        p_Item = self.rootItem
    else:
        p_Item = parent.internalPointer()
    return p_Item.childCount()

def setupModelData(self):
    for person in self.people:
        if person.isMale:
            sex = "MALES"
        else:
            sex = "FEMALES"

        if not self.parents.has_key(sex):                
            newparent = TreeItem(None, sex, self.rootItem)
            self.rootItem.appendChild(newparent)

            self.parents[sex] = newparent

        parentItem = self.parents[sex]
        newItem = TreeItem(person, "", parentItem)
        parentItem.appendChild(newItem)

如果名称 ==“主要”：

app = QtGui.QApplication([])
model = treeModel()
dialog = QtGui.QDialog()
dialog.setMinimumSize(300,150)
layout = QtGui.QVBoxLayout(dialog)

tv = QtGui.QTreeView(dialog)
tv.setModel(model)
layout.addWidget(tv)

dialog.exec_()
app.closeAllWindows()