我正在尝试将 namedtuple 对象的节点附加到 treeView 但我不确定如何将 QAbstractItem 子类化（如果这甚至是正确的方法）。我对 Python 还是很陌生，所以这让我很困惑。这是我的问题代码：
Exercise = namedtuple('Exercise','name html list')
e_list = []
for i in range(1,6,1):
dummy_list = [1,2,3,'a','b','c']
ntup = Exercise("exercise{0}".format(i),'html here',dummy_list)
e_list.append(ntup)
for e in e_list:
item = QtGui.QStandardItem(e) # gives error
self.tree_model.appendRow(item) # doesnt execute
这是整个程序：
#!/usr/bin/env python
#-*- coding:utf-8 -*-
from PyQt4 import QtCore, QtGui
from PyQt4.QtCore import *
from PyQt4.QtGui import *
from collections import namedtuple
class MyWindow(QtGui.QWidget):
def __init__(self, parent=None):
super(MyWindow, self).__init__(parent)
self.pushButton = QtGui.QPushButton(self)
self.pushButton.setText("Test 1 - doesn't work")
self.pushButton.clicked.connect(self.on_pushbutton)
self.pushButton2 = QtGui.QPushButton(self)
self.pushButton2.setText("Test 2 - works")
self.pushButton2.clicked.connect(self.on_pushbutton2)
self.treeView = QtGui.QTreeView(self)
self.treeView.clicked[QModelIndex].connect(self.on_clickitem)
self.tree_model = QtGui.QStandardItemModel()
self.treeView.setModel(self.tree_model)
self.layoutVertical = QtGui.QVBoxLayout(self)
self.layoutVertical.addWidget(self.pushButton)
self.layoutVertical.addWidget(self.pushButton2)
self.layoutVertical.addWidget(self.treeView)
def on_pushbutton(self):
Exercise = namedtuple('Exercise','name html list')
e_list = []
for i in range(1,3,1):
dummy_list = [1,2,3,'a','b','c']
ntup = Exercise("exercise{}".format(i),'html here',dummy_list)
e_list.append(ntup)
for e in e_list:
item = QtGui.QStandardItem(e) # gives error
self.tree_model.appendRow(item) # never occurs
def on_pushbutton2(self):
txt = 'hello world'
item = QtGui.QStandardItem(txt)
self.tree_model.appendRow(item)
def on_clickitem(self,index):
item = self.tree_model.itemFromIndex(index) # doesn't work
print "item name:",item.getName() # doesn't work
print "item html:",item.getHtml() # doesn't work
print "item list:",item.getList() # doesn't work
if __name__ == "__main__":
import sys
app = QtGui.QApplication(sys.argv)
app.setApplicationName('MyWindow')
main = MyWindow()
main.show()
sys.exit(app.exec_())
我想将节点附加到树中，当我单击一个项目时，我想获取 namedtuple 的值（即“name”、“html”和“alist”的值）。谢谢你的帮助。
保罗