python之如何将按钮添加到 QTreeView 行

我已将此代码包含选项卡和 TreeView 。 我希望 TreeView 中的每一行都有一些小按钮。 如何将按钮添加到 TreeView 的行中？

import sys 
from PyQt4.QtCore import * 
from PyQt4.QtGui import * 
 
class tabdemo(QTabWidget): 
    def __init__(self, parent=None): 
      super(tabdemo, self).__init__(parent) 
      self.setGeometry(300, 300, 500, 300) 
      self.tab1 = QWidget() 
      self.tab2 = QWidget() 
      self.tab3 = QWidget() 
 
 
      self.addTab(self.tab1, "Tab 1") 
      self.addTab(self.tab2, "Tab 2") 
      self.addTab(self.tab3, "Tab 3") 
      self.tab1UI() 
      self.tab2UI() 
      self.tab3UI() 
      self.setWindowTitle("tab demo") 
 
    def tab3UI(self): 
      layout = QFormLayout() 
      layout.addRow("Name", QLineEdit()) 
      layout.addRow("Address", QLineEdit()) 
      self.setTabText(0, "Contact Details") 
      self.tab3.setLayout(layout) 
 
    def tab2UI(self): 
      layout = QFormLayout() 
      sex = QHBoxLayout() 
      sex.addWidget(QRadioButton("Male")) 
      sex.addWidget(QRadioButton("Female")) 
      layout.addRow(QLabel("Sex"), sex) 
      layout.addRow("Date of Birth", QLineEdit()) 
      self.setTabText(1, "Personal Details") 
      #self.button.clicked.connect(self.handleButton) 
      self.tab2.setLayout(layout) 
 
 
 
    def tab1UI(self): 
        layout =  QGridLayout() 
        layout.addWidget(QLabel("subjects"), 0, 0)  
        layout.addWidget(QCheckBox("Physics"), 0, 1) 
        layout.addWidget(QCheckBox("Maths"), 0, 2) 
 
        view = QTreeView() 
        view.setSelectionBehavior(QAbstractItemView.SelectRows) 
        model = QStandardItemModel() 
        model.setHorizontalHeaderLabels(['col1', 'col2', 'col3']) 
        view.setModel(model) 
        view.setUniformRowHeights(True) 
        # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
        # populate data 
        for i in range(3): 
            parent1 = QStandardItem('Family {}. Some long status text for sp'.format(i)) 
            parent1.setCheckable(True) 
            for j in range(3): 
                child1 = QStandardItem('Child {}'.format(i * 3 + j)) 
                child2 = QStandardItem('row: {}, col: {}'.format(i, j + 1)) 
                child3 = QStandardItem('row: {}, col: {}'.format(i, j + 2)) 
            parent1.appendRow([child1, child2, child3]) 
            model.appendRow(parent1) 
            # span container columns 
            view.setFirstColumnSpanned(i, view.rootIndex(), True) 
        # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
        # expand third container 
        index = model.indexFromItem(parent1) 
        view.expand(index) 
        # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
        # select last row 
        selmod = view.selectionModel() 
        index2 = model.indexFromItem(child3) 
        selmod.select(index2, QItemSelectionModel.Select | QItemSelectionModel.Rows) 
 
 
        layout.addWidget(view , 1, 0) 
        self.setTabText(2, "Education Details") 
 
        self.tab1.setLayout(layout) 
 
 
 
 
def main(): 
   app = QApplication(sys.argv) 
   ex = tabdemo() 
   ex.show() 
   sys.exit(app.exec_()) 
 
if __name__ == '__main__': 
   main() 

请您参考如下方法:

您可以使用 setIndexWidget 在一行的任意列上设置小部件:

class tabdemo(QTabWidget): 
    ... 
    def tab1UI(self): 
        for i in range(3): 
            parent1 = QStandardItem('Family {}. Some long status text for sp'.format(i)) 
            parent1.setCheckable(True) 
            model.appendRow(parent1) 
            for j in range(3): 
                child1 = QStandardItem('Child {}'.format(i * 3 + j)) 
                child2 = QStandardItem('row: {}, col: {}'.format(i, j + 1)) 
                child3 = QStandardItem('row: {}, col: {}'.format(i, j + 2)) 
                child4 = QStandardItem() 
                parent1.appendRow([child1, child2, child3, child4]) 
                button = QToolButton() 
                button.setMaximumSize(button.sizeHint()) 
                view.setIndexWidget(child4.index(), button)