1#!/usr/bin/python 2 3 4############################################################################# 5## 6## Copyright (C) 2018 Riverbank Computing Limited 7## Copyright (C) 2017 Ford Motor Company 8## 9## This file is part of the PyQt examples. 10## 11## $QT_BEGIN_LICENSE:BSD$ 12## Commercial License Usage 13## Licensees holding valid commercial Qt licenses may use this file in 14## accordance with the commercial license agreement provided with the 15## Software or, alternatively, in accordance with the terms contained in 16## a written agreement between you and The Qt Company. For licensing terms 17## and conditions see https://www.qt.io/terms-conditions. For further 18## information use the contact form at https://www.qt.io/contact-us. 19## 20## BSD License Usage 21## Alternatively, you may use this file under the terms of the BSD license 22## as follows: 23## 24## "Redistribution and use in source and binary forms, with or without 25## modification, are permitted provided that the following conditions are 26## met: 27## * Redistributions of source code must retain the above copyright 28## notice, this list of conditions and the following disclaimer. 29## * Redistributions in binary form must reproduce the above copyright 30## notice, this list of conditions and the following disclaimer in 31## the documentation and/or other materials provided with the 32## distribution. 33## * Neither the name of The Qt Company Ltd nor the names of its 34## contributors may be used to endorse or promote products derived 35## from this software without specific prior written permission. 36## 37## 38## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 39## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 40## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 41## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 42## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 43## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 44## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 45## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 46## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 47## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 48## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." 49## $QT_END_LICENSE$ 50## 51############################################################################# 52 53 54import sys 55 56from PyQt5.QtCore import (pyqtSlot, QLoggingCategory, QModelIndex, QObject, Qt, 57 QTimer, QUrl) 58from PyQt5.QtGui import QColor, QStandardItem, QStandardItemModel 59from PyQt5.QtRemoteObjects import QRemoteObjectHost, QRemoteObjectRegistryHost 60from PyQt5.QtWidgets import QApplication, QTreeView 61 62 63class TimerHandler(QObject): 64 65 def __init__(self, model, parent=None): 66 super().__init__(parent) 67 68 self._model = model 69 70 @pyqtSlot() 71 def changeData(self): 72 for i in range(10, 50): 73 self._model.setData(self._model.index(i, 1), QColor(Qt.blue), 74 Qt.BackgroundRole) 75 76 @pyqtSlot() 77 def insertData(self): 78 self._model.insertRows(2, 9) 79 80 for i in range(2, 11): 81 self._model.setData(self._model.index(i, 1), QColor(Qt.green), 82 Qt.BackgroundRole) 83 self._model.setData(self._model.index(i, 1), "InsertedRow", 84 Qt.DisplayRole) 85 86 @pyqtSlot() 87 def removeData(self): 88 self._model.removeRows(2, 4) 89 90 @pyqtSlot() 91 def changeFlags(self): 92 item = self._model.item(0, 0) 93 item.setEnabled(False) 94 95 item = item.child(0, 0) 96 item.setFlags(item.flags() & Qt.ItemIsSelectable) 97 98 @pyqtSlot() 99 def moveData(self): 100 self._model.moveRows(QModelIndex(), 2, 4, QModelIndex(), 10) 101 102 103def addChild(numChildren, nestingLevel): 104 result = [] 105 106 if nestingLevel == 0: 107 return result 108 109 for i in range(numChildren): 110 child = QStandardItem( 111 "Child num {}, nesting level {}".format(i + 1, nestingLevel)) 112 113 if i == 0: 114 child.appendRow(addChild(numChildren, nestingLevel - 1)) 115 116 result.append(child) 117 118 return result 119 120 121if __name__ == '__main__': 122 123 QLoggingCategory.setFilterRules('qt.remoteobjects.debug=false\n' 124 'qt.remoteobjects.warning=false') 125 126 app = QApplication(sys.argv) 127 128 sourceModel = QStandardItemModel() 129 sourceModel.setHorizontalHeaderLabels( 130 ["First Column with spacing", "Second Column with spacing"]) 131 132 for i in range(10000): 133 firstItem = QStandardItem("FancyTextNumber {}".format(i)) 134 if i == 0: 135 firstItem.appendRow(addChild(2, 2)) 136 137 secondItem = QStandardItem("FancyRow2TextNumber {}".format(i)) 138 if i % 2 == 0: 139 firstItem.setBackground(Qt.red) 140 141 sourceModel.invisibleRootItem().appendRow([firstItem, secondItem]) 142 143 # Needed by QMLModelViewClient. 144 roleNames = { 145 Qt.DisplayRole: b'_text', 146 Qt.BackgroundRole: b'_color' 147 } 148 sourceModel.setItemRoleNames(roleNames) 149 150 roles = [Qt.DisplayRole, Qt.BackgroundRole] 151 152 node = QRemoteObjectRegistryHost(QUrl('local:registry')) 153 154 node2 = QRemoteObjectHost(QUrl('local:replica'), QUrl('local:registry')) 155 node2.enableRemoting(sourceModel, 'RemoteModel', roles) 156 157 view = QTreeView() 158 view.setWindowTitle("SourceView") 159 view.setModel(sourceModel) 160 view.show() 161 162 handler = TimerHandler(sourceModel) 163 QTimer.singleShot(5000, handler.changeData) 164 QTimer.singleShot(10000, handler.insertData) 165 QTimer.singleShot(11000, handler.changeFlags) 166 QTimer.singleShot(12000, handler.removeData) 167 QTimer.singleShot(13000, handler.moveData) 168 169 sys.exit(app.exec_()) 170