我有一个用这样的分层数据填充的qtreeview:
- id1 id1
-id1.id2 id2
- id1.id2.id3 id3
在我的非示例应用程序中,我希望能够右键单击最后一行并选择一个去链接菜单选项,然后该选项将删除并删除id2和id3之间的链接记录。为此,我需要孩子和父母的ID。
问题通过这段代码进入
index = self.eventTree.currentIndex()
parent_index = index.parent()
text1 = parent_index.data()
parent_index = self.model.index(parent_index.row(), 1)
text2 = parent_index.data()
所以我从视图中获取当前索引,从子索引中获取父索引。到此为止,一切都会按我的预期进行。如果我右键单击id3的第二列,text1将等于id2。
由于我需要获取父行的特定列,因此我尝试使用model.index函数将父索引调整为该特定列。但是,以这种方式执行操作时,我得到的是第一行(id1)而不是id2。
因此,我显然是在以错误的方式进行操作,但是我不确定目前还有什么尝试。
调整索引以使特定列从索引行中移出的正确方法是什么?
这是我所谈论的内容的工作样本
from PyQt5 import QtCore, QtGui, QtWidgets
from collections import deque
test_data = [
{"column2": "id1", "column1": "id1", "column3": "id1-value", "lvl": 0},
{"column2": "id2", "column1": "id1.id2", "column3": "id2-value", "lvl": 1},
{"column2": "id3", "column1": "id1.id2.id3", "column3": "id3-value", "lvl": 2},
]
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(640, 480)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.eventTree = QtWidgets.QTreeView(self.centralwidget)
self.eventTree.setGeometry(QtCore.QRect(10, 40, 621, 391))
self.eventTree.setObjectName("eventTree")
self.pushButton = QtWidgets.QPushButton(self.centralwidget)
self.pushButton.setGeometry(QtCore.QRect(20, 10, 89, 25))
self.pushButton.setObjectName("pushButton")
self.label = QtWidgets.QLabel(self.centralwidget)
self.label.setGeometry(QtCore.QRect(170, 10, 391, 17))
self.label.setObjectName("label")
MainWindow.setCentralWidget(self.centralwidget)
self.menubar = QtWidgets.QMenuBar(MainWindow)
self.menubar.setGeometry(QtCore.QRect(0, 0, 640, 22))
self.menubar.setObjectName("menubar")
MainWindow.setMenuBar(self.menubar)
self.statusbar = QtWidgets.QStatusBar(MainWindow)
self.statusbar.setObjectName("statusbar")
MainWindow.setStatusBar(self.statusbar)
self.model = QtGui.QStandardItemModel()
self.model.setHorizontalHeaderLabels(["Column1", "Column2", "Column3"])
self.eventTree.header().setDefaultSectionSize(180)
self.eventTree.setModel(self.model)
self.pushButton.clicked.connect(self.clickHandle)
self.retranslateUi(MainWindow)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
self.importData(test_data)
def retranslateUi(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
self.pushButton.setText(_translate("MainWindow", "PushButton"))
self.label.setText(_translate("MainWindow", "TextLabel"))
def clickHandle(self):
index = self.eventTree.currentIndex()
parent_index = index.parent()
parent_index = self.model.index(parent_index.row(), 1)
text = parent_index.data()
self.label.setText(text)
def importData(self, data, root=None, extend=False):
self.model.setRowCount(0)
if root is None:
root = self.model.invisibleRootItem()
seen = {}
values = deque(data)
while values:
value = values.popleft()
if value['lvl'] == 0:
parent = root
else:
pid = ".".join(value['column1'].split(".")[:-1])
if pid not in seen:
values.append(value)
continue
parent = seen[pid]
dbid = value['column1']
parent.appendRow([
QtGui.QStandardItem(value['column1']),
QtGui.QStandardItem(value['column2']),
QtGui.QStandardItem(value['column3']),
])
seen[dbid] = parent.child(parent.rowCount() - 1)
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
MainWindow = QtWidgets.QMainWindow()
ui = Ui_MainWindow()
ui.setupUi(MainWindow)
MainWindow.show()
sys.exit(app.exec_())
答案 0 :(得分:1)
我认为您想要的东西与我正在做的事情类似,如下所示:
tolist
函数RefrshTreeSelctd显示属于父级的所有项目,或者仅显示属于父级子级的项目
希望可以帮助您走上正确的道路。