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例如,我在我的QComboBox下拉列表如何使用QSortFilterProxyModel自定義QCompleter完成規則?
chicken soup
chilli peppers
grilled chicken
進入「CH」將匹配「雞湯」和「辣椒」,而不是「烤雞」這三個項目。
我想要的是能夠輸入「ch」並匹配所有這些或更具體地說,「雞」,並匹配「雞湯」和「烤雞肉」。
參考: https://bugreports.qt-project.org/browse/QTBUG-7830
下面的代碼工作只有一次,爲什麼呢? 如果輸入'a',所有包含'a'的字符串都顯示正確,則返回3個結果,'Jane Doe','Albert Einstein','Alfred E Newman' 但如果繼續輸入'n'沒有結果顯示在下拉菜單中。
編輯:它的工作原理,但無法正確顯示彈出而QListView(如果按向下箭頭鍵,符合條件的商品將在下拉列表編輯區顯示,但下拉列表中未顯示)
from PyQt4.QtCore import *
from PyQt4.QtGui import *
from PyQt4 import QtGui,QtCore
import sys
import signal
signal.signal(signal.SIGINT, signal.SIG_DFL)
class MyGui(QDialog):
def __init__(self, parent=None):
super(MyGui,self).__init__(parent)
model = QtGui.QStringListModel()
wordList = ['John Doe','Jane Doe','Albert Einstein', 'Alfred E Newman']
model.setStringList(wordList)
layout = QtGui.QVBoxLayout(self)
self.line = QtGui.QLineEdit(self)
layout.addWidget(self.line)
self.combobox = QComboBox(parent)
layout.addWidget(self.combobox)
self.combobox.addItems(wordList)
self.combobox.setEditable(True)
self.setLayout(layout)
complete = CustomQCompleter2(self)
complete.setModel(model)
complete.setCaseSensitivity(QtCore.Qt.CaseInsensitive)
complete.setCompletionMode(QCompleter.UnfilteredPopupCompletion)
complete.setWrapAround(False)
self.line.setCompleter(complete)
self.combobox.setCompleter(complete)
self.combobox.setEditText('')
self.setGeometry(200, 100, 400, 300)
class CustomQCompleter2(QCompleter):
def __init__(self, parent=None):
super(CustomQCompleter2, self).__init__(parent)
self.local_completion_prefix = ""
self.source_model = None
def setModel(self, model):
self.source_model = model
super(CustomQCompleter2, self).setModel(self.source_model)
def updateModel(self):
local_completion_prefix = self.local_completion_prefix
class InnerProxyModel(QSortFilterProxyModel):
def filterAcceptsRow(self, sourceRow, sourceParent):
index0 = self.sourceModel().index(sourceRow, 0, sourceParent)
searchStr = local_completion_prefix.lower()
modelStr = self.sourceModel().data(index0,Qt.DisplayRole).toString().toLower()
print searchStr,' in ',modelStr, searchStr in modelStr
return searchStr in modelStr
proxy_model = InnerProxyModel()
proxy_model.setSourceModel(self.source_model)
super(CustomQCompleter2, self).setModel(proxy_model)
print 'match :',proxy_model.rowCount()
def splitPath(self, path):
self.local_completion_prefix = str(path)
self.updateModel()
return ""
if __name__ == '__main__':
app = QtGui.QApplication(sys.argv)
gui = MyGui()
gui.show()
sys.exit(app.exec_())
這段代碼對我來說工作正常。輸入'an'可以打開3個選項。 – Avaris