0
我想擴展一個問題,我之前問過一個過濾器。在我previous question 我有幫助延遲加載樹視圖,父母第一,只增加了父母的孩子,當用戶點擊的節點上或多或少如下延遲使用QsortFIlterProxymodel過濾QTreeview
from PyQt4 import QtGui
class Widget(QtGui.QWidget):
def __init__(self, parent=None):
QtGui.QWidget.__init__(self, parent)
self.mytreeview = QtGui.QTreeView(self)
self.setLayout(QtGui.QVBoxLayout())
self.layout().addWidget(self.mytreeview)
self.model = QtGui.QStandardItemModel(self.mytreeview)
self.mytreeview.setModel(self.model)
self.mytreeview.clicked.connect(self.update_model)
self.initialise_model()
def initialise_model(self):
for text in ["parent1", "parent2", "parent3"]:
item = QtGui.QStandardItem(text)
self.model.appendRow(item)
def update_model(self, index):
parent = self.model.itemFromIndex(index)
for text in ["children1", "children2", "children3"]:
children = QtGui.QStandardItem("{}_{}".format(parent.text(), text))
parent.appendRow(children)
self.mytreeview.expand(index)
我現在想要擴展和利用的過濾器,以便用戶可以鍵入父節點的名稱,並且樹視圖將自身過濾到合適的相關節點。我仍然想保持用戶點擊父節點的能力,並且即使只有在過濾時纔會將子節點添加到父節點。
我該如何適應以下情況?我已經設置了樹狀瞭如下
proxyModel = QSortFilterProxyModel(treeView)
proxyModel.setSourceModel(self.model)
# set model
treeView.setModel(proxyModel);
treeView.setSortingEnabled(true)
def update_model(self, index):
parent = self.model.itemFromIndex(index)
##not sure about this now in the light of the proxyModel
for text in ["children1", "children2", "children3"]:
children = QtGui.QStandardItem("{}_{}".format(parent.text(), text))
parent.appendRow(children)
self.mytreeview.expand(index)#not sure about this either as the index is of the proxyModel
我首先兩個主要問題proxyModel指數和源模型指標,我不知道這是如何工作以及當擴大點擊節點,