examples/widgets/itemviews/basicfiltermodel#
（您还可以在此存储库中查看此代码）
# Copyright (C) 2013 Riverbank Computing Limited.
# Copyright (C) 2022 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
import sys
from PySide6.QtCore import (QDate, QDateTime, QRegularExpression,
QSortFilterProxyModel, QTime, Qt, Slot)
from PySide6.QtGui import QStandardItemModel
from PySide6.QtWidgets import (QApplication, QCheckBox, QComboBox, QGridLayout,
QGroupBox, QHBoxLayout, QLabel, QLineEdit,
QTreeView, QVBoxLayout, QWidget)
REGULAR_EXPRESSION = 0
WILDCARD = 1
FIXED_STRING = 2
class Window(QWidget):
def __init__(self):
super().__init__()
self._proxy_model = QSortFilterProxyModel()
self._proxy_model.setDynamicSortFilter(True)
self._source_group_box = QGroupBox("Original Model")
self._proxy_group_box = QGroupBox("Sorted/Filtered Model")
self._source_view = QTreeView()
self._source_view.setRootIsDecorated(False)
self._source_view.setAlternatingRowColors(True)
self._proxy_view = QTreeView()
self._proxy_view.setRootIsDecorated(False)
self._proxy_view.setAlternatingRowColors(True)
self._proxy_view.setModel(self._proxy_model)
self._proxy_view.setSortingEnabled(True)
self._sort_case_sensitivity_check_box = QCheckBox("Case sensitive sorting")
self._filter_case_sensitivity_check_box = QCheckBox("Case sensitive filter")
self._filter_pattern_line_edit = QLineEdit()
self._filter_pattern_line_edit.setClearButtonEnabled(True)
self._filter_pattern_label = QLabel("&Filter pattern:")
self._filter_pattern_label.setBuddy(self._filter_pattern_line_edit)
self._filter_syntax_combo_box = QComboBox()
self._filter_syntax_combo_box.addItem("Regular expression",
REGULAR_EXPRESSION)
self._filter_syntax_combo_box.addItem("Wildcard",
WILDCARD)
self._filter_syntax_combo_box.addItem("Fixed string",
FIXED_STRING)
self._filter_syntax_label = QLabel("Filter &syntax:")
self._filter_syntax_label.setBuddy(self._filter_syntax_combo_box)
self._filter_column_combo_box = QComboBox()
self._filter_column_combo_box.addItem("Subject")
self._filter_column_combo_box.addItem("Sender")
self._filter_column_combo_box.addItem("Date")
self._filter_column_label = QLabel("Filter &column:")
self._filter_column_label.setBuddy(self._filter_column_combo_box)
self._filter_pattern_line_edit.textChanged.connect(self.filter_reg_exp_changed)
self._filter_syntax_combo_box.currentIndexChanged.connect(self.filter_reg_exp_changed)
self._filter_column_combo_box.currentIndexChanged.connect(self.filter_column_changed)
self._filter_case_sensitivity_check_box.toggled.connect(self.filter_reg_exp_changed)
self._sort_case_sensitivity_check_box.toggled.connect(self.sort_changed)
source_layout = QHBoxLayout()
source_layout.addWidget(self._source_view)
self._source_group_box.setLayout(source_layout)
proxy_layout = QGridLayout()
proxy_layout.addWidget(self._proxy_view, 0, 0, 1, 3)
proxy_layout.addWidget(self._filter_pattern_label, 1, 0)
proxy_layout.addWidget(self._filter_pattern_line_edit, 1, 1, 1, 2)
proxy_layout.addWidget(self._filter_syntax_label, 2, 0)
proxy_layout.addWidget(self._filter_syntax_combo_box, 2, 1, 1, 2)
proxy_layout.addWidget(self._filter_column_label, 3, 0)
proxy_layout.addWidget(self._filter_column_combo_box, 3, 1, 1, 2)
proxy_layout.addWidget(self._filter_case_sensitivity_check_box, 4, 0, 1, 2)
proxy_layout.addWidget(self._sort_case_sensitivity_check_box, 4, 2)
self._proxy_group_box.setLayout(proxy_layout)
main_layout = QVBoxLayout()
main_layout.addWidget(self._source_group_box)
main_layout.addWidget(self._proxy_group_box)
self.setLayout(main_layout)
self.setWindowTitle("Basic Sort/Filter Model")
self.resize(500, 450)
self._proxy_view.sortByColumn(1, Qt.AscendingOrder)
self._filter_column_combo_box.setCurrentIndex(1)
self._filter_pattern_line_edit.setText("Andy|Grace")
self._filter_case_sensitivity_check_box.setChecked(True)
self._sort_case_sensitivity_check_box.setChecked(True)
def set_source_model(self, model):
self._proxy_model.setSourceModel(model)
self._source_view.setModel(model)
@Slot()
def filter_reg_exp_changed(self):
syntax_nr = self._filter_syntax_combo_box.currentData()
pattern = self._filter_pattern_line_edit.text()
if syntax_nr == WILDCARD:
pattern = QRegularExpression.wildcardToRegularExpression(pattern)
elif syntax_nr == FIXED_STRING:
pattern = QRegularExpression.escape(pattern)
reg_exp = QRegularExpression(pattern)
if not self._filter_case_sensitivity_check_box.isChecked():
options = reg_exp.patternOptions()
options |= QRegularExpression.CaseInsensitiveOption
reg_exp.setPatternOptions(options)
self._proxy_model.setFilterRegularExpression(reg_exp)
@Slot()
def filter_column_changed(self):
self._proxy_model.setFilterKeyColumn(self._filter_column_combo_box.currentIndex())
@Slot()
def sort_changed(self):
if self._sort_case_sensitivity_check_box.isChecked():
case_sensitivity = Qt.CaseSensitive
else:
case_sensitivity = Qt.CaseInsensitive
self._proxy_model.setSortCaseSensitivity(case_sensitivity)
def add_mail(model, subject, sender, date):
model.insertRow(0)
model.setData(model.index(0, 0), subject)
model.setData(model.index(0, 1), sender)
model.setData(model.index(0, 2), date)
def create_mail_model(parent):
model = QStandardItemModel(0, 3, parent)
model.setHeaderData(0, Qt.Horizontal, "Subject")
model.setHeaderData(1, Qt.Horizontal, "Sender")
model.setHeaderData(2, Qt.Horizontal, "Date")
add_mail(model, "Happy New Year!", "Grace K. <[email protected]>",
QDateTime(QDate(2006, 12, 31), QTime(17, 3)))
add_mail(model, "Radically new concept", "Grace K. <[email protected]>",
QDateTime(QDate(2006, 12, 22), QTime(9, 44)))
add_mail(model, "Accounts", "[email protected]",
QDateTime(QDate(2006, 12, 31), QTime(12, 50)))
add_mail(model, "Expenses", "Joe Bloggs <[email protected]>",
QDateTime(QDate(2006, 12, 25), QTime(11, 39)))
add_mail(model, "Re: Expenses", "Andy <[email protected]>",
QDateTime(QDate(2007, 1, 2), QTime(16, 5)))
add_mail(model, "Re: Accounts", "Joe Bloggs <[email protected]>",
QDateTime(QDate(2007, 1, 3), QTime(14, 18)))
add_mail(model, "Re: Accounts", "Andy <[email protected]>",
QDateTime(QDate(2007, 1, 3), QTime(14, 26)))
add_mail(model, "Sports", "Linda Smith <[email protected]>",
QDateTime(QDate(2007, 1, 5), QTime(11, 33)))
add_mail(model, "AW: Sports", "Rolf Newschweinstein <[email protected]>",
QDateTime(QDate(2007, 1, 5), QTime(12, 0)))
add_mail(model, "RE: Sports", "Petra Schmidt <[email protected]>",
QDateTime(QDate(2007, 1, 5), QTime(12, 1)))
return model
if __name__ == '__main__':
app = QApplication(sys.argv)
window = Window()
window.set_source_model(create_mail_model(window))
window.show()
sys.exit(app.exec())