Example #1
0
class Window(QMainWindow):
    def __init__(self):
        QMainWindow.__init__(self)
        self.ui = Ui_MainWindow()
        self.ui.setupUi(self)
        self.setWindowIcon(QIcon(":/network.svg"))

        # fix stuff imposible to do in qtdesigner
        # remove dock titlebar for addressbar
        w = QWidget()
        self.ui.addrDockWidget.setTitleBarWidget(w)
        # tabify some docks
        self.tabifyDockWidget(self.ui.evDockWidget, self.ui.subDockWidget)
        self.tabifyDockWidget(self.ui.subDockWidget, self.ui.refDockWidget)

        # we only show statusbar in case of errors
        self.ui.statusBar.hide()

        # load settings, seconds arg is default
        self.settings = QSettings("FreeOpcUa", "FreeOpcUaClient")
        self._address_list = self.settings.value("address_list", [
            "opc.tcp://localhost:4840",
            "opc.tcp://localhost:53530/OPCUA/SimulationServer/"
        ])
        self._address_list_max_count = int(
            self.settings.value("address_list_max_count", 10))

        # init widgets
        for addr in self._address_list:
            self.ui.addrComboBox.insertItem(-1, addr)

        self.uaclient = UaClient()

        self.tree_ui = TreeUI(self, self.uaclient)
        self.refs_ui = RefsUI(self, self.uaclient)
        self.attrs_ui = AttrsUI(self, self.uaclient)
        self.datachange_ui = DataChangeUI(self, self.uaclient)
        self.event_ui = EventUI(self, self.uaclient)

        self.resize(int(self.settings.value("main_window_width", 800)),
                    int(self.settings.value("main_window_height", 600)))
        self.restoreState(self.settings.value("main_window_state", b""))

        self.ui.connectButton.clicked.connect(self._connect)
        self.ui.disconnectButton.clicked.connect(self._disconnect)
        # self.ui.treeView.expanded.connect(self._fit)

        self.ui.actionConnect.triggered.connect(self._connect)
        self.ui.actionDisconnect.triggered.connect(self._disconnect)

    def show_error(self, msg, level=1):
        print("showing error: ", msg, level)
        self.ui.statusBar.show()
        self.ui.statusBar.setStyleSheet(
            "QStatusBar { background-color : red; color : black; }")
        self.ui.statusBar.showMessage(str(msg))
        QTimer.singleShot(1500, self.ui.statusBar.hide)

    def get_current_node(self, idx=None):
        if idx is None:
            idx = self.ui.treeView.currentIndex()
        return self.tree_ui.get_current_node(idx)

    def get_uaclient(self):
        return self.uaclient

    def _connect(self):
        uri = self.ui.addrComboBox.currentText()
        try:
            self.uaclient.connect(uri)
        except Exception as ex:
            self.show_error(ex)
            raise

        self._update_address_list(uri)
        self.tree_ui.start()

    def _update_address_list(self, uri):
        if uri == self._address_list[0]:
            return
        if uri in self._address_list:
            self._address_list.remove(uri)
        self._address_list.insert(0, uri)
        if len(self._address_list) > self._address_list_max_count:
            self._address_list.pop(-1)

    def _disconnect(self):
        try:
            self.uaclient.disconnect()
        except Exception as ex:
            self.show_error(ex)
            raise
        finally:
            self.tree_ui.clear()
            self.refs_ui.clear()
            self.attrs_ui.clear()
            self.datachange_ui.clear()
            self.event_ui.clear()

    def closeEvent(self, event):
        self.settings.setValue("main_window_width", self.size().width())
        self.settings.setValue("main_window_height", self.size().height())
        self.settings.setValue("main_window_state", self.saveState())
        self.settings.setValue("address_list", self._address_list)
        self._disconnect()
        event.accept()
Example #2
0
class Window(QMainWindow):

    def __init__(self):
        QMainWindow.__init__(self)
        self.ui = Ui_MainWindow()
        self.ui.setupUi(self)
        self.setWindowIcon(QIcon(":/network.svg"))

        # fix stuff imposible to do in qtdesigner
        # remove dock titlebar for addressbar
        w = QWidget()
        self.ui.addrDockWidget.setTitleBarWidget(w)
        # tabify some docks
        self.tabifyDockWidget(self.ui.evDockWidget, self.ui.subDockWidget)
        self.tabifyDockWidget(self.ui.subDockWidget, self.ui.refDockWidget)

        # we only show statusbar in case of errors
        self.ui.statusBar.hide()

        # load settings, seconds arg is default
        self.settings = QSettings("FreeOpcUa", "FreeOpcUaClient")
        self._address_list = self.settings.value("address_list", ["opc.tcp://localhost:4840", "opc.tcp://localhost:53530/OPCUA/SimulationServer/"])
        self._address_list_max_count = int(self.settings.value("address_list_max_count", 10))

        # init widgets
        for addr in self._address_list:
            self.ui.addrComboBox.insertItem(-1, addr)

        self.uaclient = UaClient()

        self.tree_ui = TreeUI(self, self.uaclient)
        self.refs_ui = RefsUI(self, self.uaclient)
        self.attrs_ui = AttrsUI(self, self.uaclient)
        self.datachange_ui = DataChangeUI(self, self.uaclient)
        self.event_ui = EventUI(self, self.uaclient)

        self.resize(int(self.settings.value("main_window_width", 800)), int(self.settings.value("main_window_height", 600)))
        self.restoreState(self.settings.value("main_window_state", b"", type="QByteArray"))

        self.ui.connectButton.clicked.connect(self._connect)
        self.ui.disconnectButton.clicked.connect(self._disconnect)
        # self.ui.treeView.expanded.connect(self._fit)

        self.ui.actionConnect.triggered.connect(self._connect)
        self.ui.actionDisconnect.triggered.connect(self._disconnect)

        self.ui.modeComboBox.addItem("None")
        self.ui.modeComboBox.addItem("Sign")
        self.ui.modeComboBox.addItem("SignAndEncrypt")

        self.ui.policyComboBox.addItem("None")
        self.ui.policyComboBox.addItem("Basic128RSA15")
        self.ui.policyComboBox.addItem("Basic256")
        self.ui.policyComboBox.addItem("Basic256SHA256")

    def show_error(self, msg, level=1):
        print("showing error: ", msg, level)
        self.ui.statusBar.show()
        self.ui.statusBar.setStyleSheet("QStatusBar { background-color : red; color : black; }")
        self.ui.statusBar.showMessage(str(msg))
        QTimer.singleShot(1500, self.ui.statusBar.hide)

    def get_current_node(self, idx=None):
        return self.tree_ui.get_current_node(idx)

    def get_uaclient(self):
        return self.uaclient

    def _connect(self):
        uri = self.ui.addrComboBox.currentText()
        try:
            self.uaclient.connect(uri)
        except Exception as ex:
            self.show_error(ex)
            raise

        self._update_address_list(uri)
        self.tree_ui.start()

    def _update_address_list(self, uri):
        if uri == self._address_list[0]:
            return
        if uri in self._address_list:
            self._address_list.remove(uri)
        self._address_list.insert(0, uri)
        if len(self._address_list) > self._address_list_max_count:
            self._address_list.pop(-1)

    def _disconnect(self):
        try:
            self.uaclient.disconnect()
        except Exception as ex:
            self.show_error(ex)
            raise
        finally:
            self.tree_ui.clear()
            self.refs_ui.clear()
            self.attrs_ui.clear()
            self.datachange_ui.clear()
            self.event_ui.clear()

    def closeEvent(self, event):
        self.settings.setValue("main_window_width", self.size().width())
        self.settings.setValue("main_window_height", self.size().height())
        self.settings.setValue("main_window_state", self.saveState())
        self.settings.setValue("address_list", self._address_list)
        self._disconnect()
        event.accept()
Example #3
0
class Window(QMainWindow):
    def __init__(self):
        QMainWindow.__init__(self)
        self.ui = Ui_MainWindow()
        self.ui.setupUi(self)

        #fix stuff imposible to do in qtdesigner
        #remove dock titlebar for addressbar
        w = QWidget()
        self.ui.addrDockWidget.setTitleBarWidget(w)
        #tabify some docks
        self.tabifyDockWidget(self.ui.evDockWidget, self.ui.subDockWidget)
        self.tabifyDockWidget(self.ui.subDockWidget, self.ui.refDockWidget)

        # init widgets
        self.ui.statusBar.hide()
        self.ui.addrComboBox.insertItem(-1, "opc.tcp://localhost:4841/")
        self.ui.addrComboBox.insertItem(
            1, "opc.tcp://localhost:53530/OPCUA/SimulationServer/")
        self.ui.addrComboBox.insertItem(1, "opc.tcp://10.0.5.15:49320/")

        self.attr_model = QStandardItemModel()
        self.refs_model = QStandardItemModel()
        self.sub_model = QStandardItemModel()
        self.ui.attrView.setModel(self.attr_model)
        self.ui.refView.setModel(self.refs_model)
        self.ui.subView.setModel(self.sub_model)

        self.model = MyModel(self)
        self.model.clear()
        self.model.error.connect(self.show_error)
        self.ui.treeView.setModel(self.model)
        self.ui.treeView.setUniformRowHeights(True)
        self.ui.treeView.setSelectionBehavior(QAbstractItemView.SelectRows)

        self.uaclient = UaClient()
        self.ui.connectButton.clicked.connect(self._connect)
        self.ui.disconnectButton.clicked.connect(self._disconnect)
        self.ui.treeView.activated.connect(self._show_attrs_and_refs)
        self.ui.treeView.clicked.connect(self._show_attrs_and_refs)
        self.ui.treeView.expanded.connect(self._fit)

        self.ui.actionSubscribeDataChange.triggered.connect(self._subscribe)
        self.ui.actionSubscribeEvent.triggered.connect(self._subscribeEvent)
        self.ui.actionConnect.triggered.connect(self._connect)
        self.ui.actionDisconnect.triggered.connect(self._disconnect)

        self.ui.attrRefreshButton.clicked.connect(self.show_attrs)

        # context menu
        self.ui.treeView.addAction(self.ui.actionSubscribeDataChange)
        self.ui.treeView.addAction(self.ui.actionSubscribeEvent)
        self.ui.treeView.addAction(self.ui.actionUnsubscribe)

        # handle subscriptions
        self._subhandler = SubHandler(self.sub_model)

    def show_error(self, msg, level=1):
        print("showing error: ", msg, level)
        self.ui.statusBar.show()
        self.ui.statusBar.setStyleSheet(
            "QStatusBar { background-color : red; color : black; }")
        #self.ui.statusBar.clear()
        self.ui.statusBar.showMessage(str(msg))
        QTimer.singleShot(1500, self.ui.statusBar.hide)

    def _fit(self, idx):
        self.ui.treeView.resizeColumnToContents(0)

    def _subscribeEvent(self):
        self.showError("Not Implemented")

    def _subscribe(self):
        idx = self.ui.treeView.currentIndex()
        it = self.model.itemFromIndex(idx)
        if not id:
            self.show_error("No item currently selected")
        node = it.data()
        attrs = self.uaclient.get_node_attrs(node)
        self.sub_model.setHorizontalHeaderLabels(
            ["DisplayName", "Browse Name", 'NodeId', "Value"])
        item = QStandardItem(attrs[1])
        self.sub_model.appendRow(
            [item, QStandardItem(attrs[2]),
             QStandardItem(attrs[3])])
        try:
            # FIXME use handle to unsubscribe!!!
            handle = self.uaclient.subscribe(node, self._subhandler)
        except Exception as ex:
            self.show_error(ex)
            idx = self.sub_model.indexFromItem(item)
            self.sub_model.takeRow(idx.row())

    def unsubscribe(self):
        idx = self.ui.treeView.currentIndex()
        it = self.model.itemFromIndex(idx)
        if not id:
            print("No item currently selected")
        node = it.data()
        self.uaclient.unsubscribe(node)

    def _show_attrs_and_refs(self, idx):
        node = self.get_current_node(idx)
        if node:
            self._show_attrs(node)
            self._show_refs(node)

    def get_current_node(self, idx=None):
        if idx is None:
            idx = self.ui.treeView.currentIndex()
        it = self.model.itemFromIndex(idx)
        if not it:
            return None
        node = it.data()
        if not node:
            print("No node for item:", it, it.text())
            return None
        return node

    def show_attrs(self):
        node = self.get_current_node()
        if node:
            self._show_attrs(node)
        else:
            self.attr_model.clear()

    def _show_refs(self, node):
        self.refs_model.clear()
        self.refs_model.setHorizontalHeaderLabels(
            ['ReferenceType', 'NodeId', "BrowseName", "TypeDefinition"])
        try:
            refs = self.uaclient.get_all_refs(node)
        except Exception as ex:
            self.show_error(ex)
            raise
        for ref in refs:
            self.refs_model.appendRow([
                QStandardItem(str(ref.ReferenceTypeId)),
                QStandardItem(str(ref.NodeId)),
                QStandardItem(str(ref.BrowseName)),
                QStandardItem(str(ref.TypeDefinition))
            ])
        self.ui.refView.resizeColumnToContents(0)
        self.ui.refView.resizeColumnToContents(1)
        self.ui.refView.resizeColumnToContents(2)
        self.ui.refView.resizeColumnToContents(3)

    def _show_attrs(self, node):
        try:
            attrs = self.uaclient.get_all_attrs(node)
        except Exception as ex:
            self.show_error(ex)
            raise
        self.attr_model.clear()
        self.attr_model.setHorizontalHeaderLabels(['Attribute', 'Value'])
        for k, v in attrs.items():
            self.attr_model.appendRow(
                [QStandardItem(k), QStandardItem(str(v))])
        self.ui.attrView.resizeColumnToContents(0)
        self.ui.attrView.resizeColumnToContents(1)

    def _connect(self):
        uri = self.ui.addrComboBox.currentText()
        try:
            self.uaclient.connect(uri)
        except Exception as ex:
            self.show_error(ex)
            raise

        self.model.client = self.uaclient
        self.model.clear()
        self.model.add_item(self.uaclient.get_root_attrs())
        self.ui.treeView.resizeColumnToContents(0)
        self.ui.treeView.resizeColumnToContents(1)
        self.ui.treeView.resizeColumnToContents(2)

    def _disconnect(self):
        try:
            self.uaclient.disconnect()
        except Exception as ex:
            self.show_error(ex)
            raise
        finally:
            self.model.clear()
            self.sub_model.clear()
            self.model.client = None

    def closeEvent(self, event):
        self._disconnect()
        event.accept()