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QtRemoteObjects
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‎QtRemoteObjects/README.en.md

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# QtRemoteObjects

‎QtRemoteObjects/README.md

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# QtRemoteObjects
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- 目录
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- [modelview](#1modelview)
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- [simpleswitch](#2simpleswitch)
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## 1、modelview
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[运行 modelviewserver.py](modelview/modelviewserver.py) | [运行 modelviewclient.py](modelview/modelviewclient.py)
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官方关于QTreeView/QStandardItemModel的同步model例子
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## 2、simpleswitch
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[运行 directconnectdynamicserver.py](simpleswitch/directconnectdynamicserver.py) | [运行 directconnectdynamicclient.py](simpleswitch/directconnectdynamicclient.py)
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[运行 registryconnecteddynamicserver.py](simpleswitch/registryconnecteddynamicserver.py) | [运行 registryconnecteddynamicclient.py](simpleswitch/registryconnecteddynamicclient.py)
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官方关于简单的信号槽、属性访问测试例子

‎QtRemoteObjects/__init__.py

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‎QtRemoteObjects/modelview/modelviewclient.py

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#!/usr/bin/env python
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#############################################################################
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##
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## Copyright (C) 2018 Riverbank Computing Limited
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## Copyright (C) 2017 Ford Motor Company
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##
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## This file is part of the examples of PyQt.
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##
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## $QT_BEGIN_LICENSE:BSD$
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## Commercial License Usage
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## Licensees holding valid commercial Qt licenses may use this file in
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## accordance with the commercial license agreement provided with the
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## Software or, alternatively, in accordance with the terms contained in
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## a written agreement between you and The Qt Company. For licensing terms
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## and conditions see https://www.qt.io/terms-conditions. For further
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## information use the contact form at https://www.qt.io/contact-us.
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##
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## BSD License Usage
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## Alternatively, you may use this file under the terms of the BSD license
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## as follows:
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##
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## "Redistribution and use in source and binary forms, with or without
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## modification, are permitted provided that the following conditions are
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## met:
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## * Redistributions of source code must retain the above copyright
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## notice, this list of conditions and the following disclaimer.
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## * Redistributions in binary form must reproduce the above copyright
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## notice, this list of conditions and the following disclaimer in
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## the documentation and/or other materials provided with the
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## distribution.
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## * Neither the name of The Qt Company Ltd nor the names of its
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## contributors may be used to endorse or promote products derived
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## from this software without specific prior written permission.
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##
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##
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## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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## $QT_END_LICENSE$
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#############################################################################
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import sys
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from PyQt5.QtCore import QLoggingCategory, QUrl
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from PyQt5.QtRemoteObjects import QRemoteObjectNode
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from PyQt5.QtWidgets import QApplication, QTreeView
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QLoggingCategory.setFilterRules('qt.remoteobjects.debug=false\n'
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'qt.remoteobjects.warning=false\n'
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'qt.remoteobjects.models.debug=false\n'
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'qt.remoteobjects.models.debug=false')
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app = QApplication(sys.argv)
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node = QRemoteObjectNode(QUrl('local:registry'))
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node.setHeartbeatInterval(1000)
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view = QTreeView()
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view.setWindowTitle("RemoteView")
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view.resize(640, 480)
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model = node.acquireModel('RemoteModel')
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view.setModel(model)
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view.show();
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sys.exit(app.exec_())

‎QtRemoteObjects/modelview/modelviewserver.py

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#!/usr/bin/python
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#############################################################################
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##
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## Copyright (C) 2018 Riverbank Computing Limited
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## Copyright (C) 2017 Ford Motor Company
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##
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## This file is part of the PyQt examples.
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##
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## $QT_BEGIN_LICENSE:BSD$
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## Commercial License Usage
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## Licensees holding valid commercial Qt licenses may use this file in
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## accordance with the commercial license agreement provided with the
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## Software or, alternatively, in accordance with the terms contained in
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## a written agreement between you and The Qt Company. For licensing terms
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## and conditions see https://www.qt.io/terms-conditions. For further
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## information use the contact form at https://www.qt.io/contact-us.
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##
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## BSD License Usage
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## Alternatively, you may use this file under the terms of the BSD license
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## as follows:
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##
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## "Redistribution and use in source and binary forms, with or without
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## modification, are permitted provided that the following conditions are
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## met:
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## * Redistributions of source code must retain the above copyright
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## notice, this list of conditions and the following disclaimer.
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## * Redistributions in binary form must reproduce the above copyright
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## notice, this list of conditions and the following disclaimer in
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## the documentation and/or other materials provided with the
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## distribution.
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## * Neither the name of The Qt Company Ltd nor the names of its
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## contributors may be used to endorse or promote products derived
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## from this software without specific prior written permission.
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##
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##
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## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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## $QT_END_LICENSE$
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##
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#############################################################################
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import sys
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from PyQt5.QtCore import (pyqtSlot, QLoggingCategory, QModelIndex, QObject, Qt,
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QTimer, QUrl)
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from PyQt5.QtGui import QColor, QStandardItem, QStandardItemModel
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from PyQt5.QtRemoteObjects import QRemoteObjectHost, QRemoteObjectRegistryHost
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from PyQt5.QtWidgets import QApplication, QTreeView
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class TimerHandler(QObject):
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def __init__(self, model, parent=None):
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super().__init__(parent)
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self._model = model
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@pyqtSlot()
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def changeData(self):
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for i in range(10, 50):
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self._model.setData(self._model.index(i, 1), QColor(Qt.blue),
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Qt.BackgroundRole)
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@pyqtSlot()
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def insertData(self):
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self._model.insertRows(2, 9)
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for i in range(2, 11):
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self._model.setData(self._model.index(i, 1), QColor(Qt.green),
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Qt.BackgroundRole)
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self._model.setData(self._model.index(i, 1), "InsertedRow",
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Qt.DisplayRole)
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@pyqtSlot()
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def removeData(self):
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self._model.removeRows(2, 4)
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@pyqtSlot()
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def changeFlags(self):
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item = self._model.item(0, 0)
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item.setEnabled(False)
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item = item.child(0, 0)
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item.setFlags(item.flags() & Qt.ItemIsSelectable)
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@pyqtSlot()
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def moveData(self):
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self._model.moveRows(QModelIndex(), 2, 4, QModelIndex(), 10)
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def addChild(numChildren, nestingLevel):
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result = []
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if nestingLevel == 0:
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return result
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for i in range(numChildren):
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child = QStandardItem(
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"Child num {}, nesting level {}".format(i + 1, nestingLevel))
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if i == 0:
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child.appendRow(addChild(numChildren, nestingLevel - 1))
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result.append(child)
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return result
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if __name__ == '__main__':
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QLoggingCategory.setFilterRules('qt.remoteobjects.debug=false\n'
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'qt.remoteobjects.warning=false')
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app = QApplication(sys.argv)
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sourceModel = QStandardItemModel()
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sourceModel.setHorizontalHeaderLabels(
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["First Column with spacing", "Second Column with spacing"])
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for i in range(10000):
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firstItem = QStandardItem("FancyTextNumber {}".format(i))
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if i == 0:
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firstItem.appendRow(addChild(2, 2))
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secondItem = QStandardItem("FancyRow2TextNumber {}".format(i))
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if i % 2 == 0:
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firstItem.setBackground(Qt.red)
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sourceModel.invisibleRootItem().appendRow([firstItem, secondItem])
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# Needed by QMLModelViewClient.
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roleNames = {
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Qt.DisplayRole: b'_text',
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Qt.BackgroundRole: b'_color'
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}
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sourceModel.setItemRoleNames(roleNames)
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roles = [Qt.DisplayRole, Qt.BackgroundRole]
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node = QRemoteObjectRegistryHost(QUrl('local:registry'))
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node2 = QRemoteObjectHost(QUrl('local:replica'), QUrl('local:registry'))
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node2.enableRemoting(sourceModel, 'RemoteModel', roles)
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view = QTreeView()
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view.setWindowTitle("SourceView")
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view.setModel(sourceModel)
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view.show()
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handler = TimerHandler(sourceModel)
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QTimer.singleShot(5000, handler.changeData)
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QTimer.singleShot(10000, handler.insertData)
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QTimer.singleShot(11000, handler.changeFlags)
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QTimer.singleShot(12000, handler.removeData)
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QTimer.singleShot(13000, handler.moveData)
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sys.exit(app.exec_())

‎QtRemoteObjects/simpleswitch/directconnectdynamicclient.py

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#!/usr/bin/env python
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#############################################################################
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##
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## Copyright (C) 2018 Riverbank Computing Limited
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## Copyright (C) 2017 Ford Motor Company
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##
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## This file is part of the PyQt examples.
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##
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## $QT_BEGIN_LICENSE:BSD$
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## Commercial License Usage
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## Licensees holding valid commercial Qt licenses may use this file in
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## accordance with the commercial license agreement provided with the
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## Software or, alternatively, in accordance with the terms contained in
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## a written agreement between you and The Qt Company. For licensing terms
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## and conditions see https://www.qt.io/terms-conditions. For further
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## information use the contact form at https://www.qt.io/contact-us.
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##
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## BSD License Usage
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## Alternatively, you may use this file under the terms of the BSD license
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## as follows:
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##
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## "Redistribution and use in source and binary forms, with or without
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## modification, are permitted provided that the following conditions are
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## met:
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## * Redistributions of source code must retain the above copyright
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## notice, this list of conditions and the following disclaimer.
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## * Redistributions in binary form must reproduce the above copyright
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## notice, this list of conditions and the following disclaimer in
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## the documentation and/or other materials provided with the
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## distribution.
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## * Neither the name of The Qt Company Ltd nor the names of its
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## contributors may be used to endorse or promote products derived
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## from this software without specific prior written permission.
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##
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##
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## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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## $QT_END_LICENSE$
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##
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#############################################################################
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import sys
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from PyQt5.QtCore import pyqtSignal, pyqtSlot, QCoreApplication, QObject, QUrl
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from PyQt5.QtRemoteObjects import QRemoteObjectNode
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class DynamicClient(QObject):
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# This signal is connected with server_slot() slot of the source object and
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# echoes back the switch state received from the source.
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echoSwitchState = pyqtSignal(bool)
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def __init__(self, replica, parent=None):
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super().__init__(parent)
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self._replica = replica
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self._clientSwitchState = False
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replica.initialized.connect(self.initConnection)
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@pyqtSlot(bool)
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def recSwitchState(self, value):
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self._clientSwitchState = self._replica.property('currState')
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print("Received source state", value, self._clientSwitchState)
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# Emit the signal to echo the received state back to the server.
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self.echoSwitchState.emit(self._clientSwitchState)
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@pyqtSlot()
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def initConnection(self):
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# Connect the replica source signal currStateChanged() with the
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# client's recSwitchState() slot to receive the source's current state.
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self._replica.currStateChanged.connect(self.recSwitchState)
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# Connect the client's echoSwitchState() signal with replica's
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# server_slot() to echo back the received state.
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self.echoSwitchState.connect(self._replica.server_slot)
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if __name__ == '__main__':
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app = QCoreApplication(sys.argv)
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# Create the remote object node.
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repNode = QRemoteObjectNode()
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# Connect with the remote host node.
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repNode.connectToNode(QUrl('local:replica'))
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# Acquire a replica of the source from the host node.
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replica = repNode.acquireDynamic('SimpleSwitch')
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# Create the client switch object and pass the replica to it.
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rswitch = DynamicClient(replica)
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sys.exit(app.exec_())

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