pyqt下拉列表

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#!/usr/bin/env python

# -*- coding: utf-8 -*-

from PyQt4.QtCore import Qt

from PyQt4.QtGui import QCompleter, QComboBox, QSortFilterProxyModel

class ExtendedComboBox(QComboBox):

    def __init__(self, parent=None):

        super(ExtendedComboBox, self).__init__(parent)

        self.setFocusPolicy(Qt.StrongFocus)

        self.setEditable(True)

        # add a filter model to filter matching items

        self.pFilterModel = QSortFilterProxyModel(self)

        self.pFilterModel.setFilterCaseSensitivity(Qt.CaseInsensitive)

        self.pFilterModel.setSourceModel(self.model())

        # add a completer, which uses the filter model

        self.completer = QCompleter(self.pFilterModel, self)

        # always show all (filtered) completions

        self.completer.setCompletionMode(QCompleter.UnfilteredPopupCompletion)

        self.setCompleter(self.completer)

        # connect signals

        self.lineEdit().textEdited[unicode].connect(self.pFilterModel.setFilterFixedString)

        self.completer.activated.connect(self.on_completer_activated)

    # on selection of an item from the completer, select the corresponding item from combobox 

    def on_completer_activated(self, text):

        if text:

            index = self.findText(text)

            self.setCurrentIndex(index)

    # on model change, update the models of the filter and completer as well 

    def setModel(self, model):

        super(ExtendedComboBox, self).setModel(model)

        self.pFilterModel.setSourceModel(model)

        self.completer.setModel(self.pFilterModel)

    # on model column change, update the model column of the filter and completer as well

    def setModelColumn(self, column):

        self.completer.setCompletionColumn(column)

        self.pFilterModel.setFilterKeyColumn(column)

        super(ExtendedComboBox, self).setModelColumn(column)

if __name__ == "__main__":

    import sys

    from PyQt4.QtGui import QStringListModel, QApplication

    app = QApplication(sys.argv)

    string_list = [‘hola muchachos‘, ‘adios amigos‘, ‘hello world‘, ‘good bye‘]

    combo = ExtendedComboBox()

    # either fill the standard model of the combobox

    combo.addItems(string_list)

    # or use another model

    #combo.setModel(QStringListModel(string_list))

    combo.resize(300, 40)

    combo.show()

    sys.exit(app.exec_())

pyqt下拉列表

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原文地址：http://www.cnblogs.com/mhxy13867806343/p/4295201.html