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Diffstat (limited to 'examples/bluetooth/btscanner/device.py')
| -rw-r--r-- | examples/bluetooth/btscanner/device.py | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/examples/bluetooth/btscanner/device.py b/examples/bluetooth/btscanner/device.py new file mode 100644 index 000000000..ba221b155 --- /dev/null +++ b/examples/bluetooth/btscanner/device.py @@ -0,0 +1,166 @@ +############################################################################# +## +## Copyright (C) 2021 The Qt Company Ltd. +## Contact: http://www.qt.io/licensing/ +## +## This file is part of the Qt for Python examples of the Qt Toolkit. +## +## $QT_BEGIN_LICENSE:BSD$ +## You may use this file under the terms of the BSD license as follows: +## +## "Redistribution and use in source and binary forms, with or without +## modification, are permitted provided that the following conditions are +## met: +## * Redistributions of source code must retain the above copyright +## notice, this list of conditions and the following disclaimer. +## * Redistributions in binary form must reproduce the above copyright +## notice, this list of conditions and the following disclaimer in +## the documentation and/or other materials provided with the +## distribution. +## * Neither the name of The Qt Company Ltd nor the names of its +## contributors may be used to endorse or promote products derived +## from this software without specific prior written permission. +## +## +## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +## +## $QT_END_LICENSE$ +## +############################################################################# + +from PySide6.QtCore import QPoint, Qt, Slot +from PySide6.QtGui import QColor +from PySide6.QtWidgets import QDialog, QListWidgetItem, QListWidget, QMenu +from PySide6.QtBluetooth import (QBluetoothAddress, QBluetoothDeviceDiscoveryAgent, + QBluetoothDeviceInfo, QBluetoothLocalDevice) + +from ui_device import Ui_DeviceDiscovery +from service import ServiceDiscoveryDialog + + +class DeviceDiscoveryDialog(QDialog): + def __init__(self, parent=None): + super().__init__(parent) + self._local_device = QBluetoothLocalDevice() + self._ui = Ui_DeviceDiscovery() + self._ui.setupUi(self) + # In case of multiple Bluetooth adapters it is possible to set adapter + # which will be used. Example code: + # + # address = QBluetoothAddress("XX:XX:XX:XX:XX:XX") + # discoveryAgent = QBluetoothDeviceDiscoveryAgent(address) + + self._discovery_agent = QBluetoothDeviceDiscoveryAgent() + + self._ui.scan.clicked.connect(self.start_scan) + self._discovery_agent.deviceDiscovered.connect(self.add_device) + self._discovery_agent.finished.connect(self.scan_finished) + self._ui.list.itemActivated.connect(self.item_activated) + self._local_device.hostModeStateChanged.connect(self.host_mode_state_changed) + + self.host_mode_state_changed(self._local_device.hostMode()) + # add context menu for devices to be able to pair device + self._ui.list.setContextMenuPolicy(Qt.CustomContextMenu) + self._ui.list.customContextMenuRequested.connect(self.display_pairing_menu) + self._local_device.pairingFinished.connect(self.pairing_done) + + @Slot(QBluetoothDeviceInfo) + def add_device(self, info): + a = info.address().toString() + label = f"{a} {info.name()}" + items = self._ui.list.findItems(label, Qt.MatchExactly) + if not items: + item = QListWidgetItem(label) + pairing_status = self._local_device.pairingStatus(info.address()) + if (pairing_status == QBluetoothLocalDevice.Paired + or pairing_status == QBluetoothLocalDevice.AuthorizedPaired): + item.setForeground(QColor(Qt.green)) + else: + item.setForeground(QColor(Qt.black)) + self._ui.list.addItem(item) + + @Slot() + def start_scan(self): + self._discovery_agent.start() + self._ui.scan.setEnabled(False) + + @Slot() + def scan_finished(self): + self._ui.scan.setEnabled(True) + + @Slot(QListWidgetItem) + def item_activated(self, item): + text = item.text() + index = text.find(' ') + if index == -1: + return + + address = QBluetoothAddress(text[0:index]) + name = text[index + 1:] + + d = ServiceDiscoveryDialog(name, address) + d.exec() + + @Slot(bool) + def on_discoverable_clicked(self, clicked): + if clicked: + self._local_device.setHostMode(QBluetoothLocalDevice.HostDiscoverable) + else: + self._local_device.setHostMode(QBluetoothLocalDevice.HostConnectable) + + @Slot(bool) + def on_power_clicked(self, clicked): + if clicked: + self._local_device.powerOn() + else: + self._local_device.setHostMode(QBluetoothLocalDevice.HostPoweredOff) + + @Slot(QBluetoothLocalDevice.HostMode) + def host_mode_state_changed(self, mode): + self._ui.power.setChecked(mode != QBluetoothLocalDevice.HostPoweredOff) + self._ui.discoverable.setChecked(mode == QBluetoothLocalDevice.HostDiscoverable) + + on = mode != QBluetoothLocalDevice.HostPoweredOff + self._ui.scan.setEnabled(on) + self._ui.discoverable.setEnabled(on) + + @Slot(QPoint) + def display_pairing_menu(self, pos): + if self._ui.list.count() == 0: + return + menu = QMenu(self) + pair_action = menu.addAction("Pair") + remove_pair_action = menu.addAction("Remove Pairing") + chosen_action = menu.exec(self._ui.list.viewport().mapToGlobal(pos)) + current_item = self._ui.list.currentItem() + + text = current_item.text() + index = text.find(' ') + if index == -1: + return + + address = QBluetoothAddress(text[0:index]) + if chosen_action == pair_action: + self._local_device.requestPairing(address, QBluetoothLocalDevice.Paired) + elif chosen_action == remove_pair_action: + self._local_device.requestPairing(address, QBluetoothLocalDevice.Unpaired) + + @Slot(QBluetoothAddress, QBluetoothLocalDevice.Pairing) + def pairing_done(self, address, pairing): + items = self._ui.list.findItems(address.toString(), Qt.MatchContains) + + color = QColor(Qt.red) + if pairing == QBluetoothLocalDevice.Paired or pairing == QBluetoothLocalDevice.AuthorizedPaired: + color = QColor(Qt.green) + for item in items: + item.setForeground(color) |