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from PyQt5 import QtCore
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from PyQt5.QtCore import QSettings, QSize
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from PyQt5.QtWidgets import QDialog, QVBoxLayout, QDialogButtonBox, QGroupBox, QFormLayout, QLabel, QLineEdit, QSpinBox, \
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QCheckBox, QPushButton, QListWidget, QListWidgetItem
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DEFAULT_HOST = "localhost"
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DEFAULT_PORT = 1883
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DEFAULT_KEEPALIVE = 60
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DEFAULT_ANONYMOUS = True
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DEFAULT_USERNAME = ""
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DEFAULT_PASSWORD = ""
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DEFAULT_TOPICS = ["/home/1", "/home/2"]
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DEFAULT_TIMEOUT = 60
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def get_settings():
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settings = QSettings('settings.ini', QSettings.IniFormat)
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return settings
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class SettingsDialog(QDialog):
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"""
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Settings dialog.
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In settings dialog is possible to change settings of application.
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"""
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topics = DEFAULT_TOPICS
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def __init__(self):
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"""
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Constructor
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"""
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super(SettingsDialog, self).__init__(None,
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QtCore.Qt.WindowCloseButtonHint | QtCore.Qt.WindowSystemMenuHint | QtCore.Qt.WindowTitleHint)
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self.settings = get_settings()
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self.setWindowTitle("Settings")
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self.setMinimumSize(QSize(600, 500))
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connectionGroupBox = QGroupBox("Connection")
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connectionLayout = QFormLayout()
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self.hostInput = QLineEdit(self.settings.value("connection_host", DEFAULT_HOST, str))
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connectionLayout.addRow(QLabel("Host:"), self.hostInput)
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self.portInput = QSpinBox()
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self.portInput.setMaximum(65535)
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self.portInput.setValue(self.settings.value("connection_port", DEFAULT_PORT, int))
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connectionLayout.addRow(QLabel("Port:"), self.portInput)
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self.keepaliveInput = QSpinBox()
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self.keepaliveInput.setMaximum(1000)
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self.keepaliveInput.setValue(self.settings.value("connection_keepalive", DEFAULT_KEEPALIVE, int))
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connectionLayout.addRow(QLabel("Keepalive(s):"), self.keepaliveInput)
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self.anonymousInput = QCheckBox()
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self.anonymousInput.setChecked(self.settings.value("connection_anonymous", DEFAULT_ANONYMOUS, bool))
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self.anonymousInput.stateChanged.connect(self.anonymousChanged)
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connectionLayout.addRow(QLabel("Anonymous:"), self.anonymousInput)
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self.usernameInput = QLineEdit(self.settings.value("connection_username", DEFAULT_USERNAME, str))
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connectionLayout.addRow(QLabel("Username:"), self.usernameInput)
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self.passwordInput = QLineEdit(self.settings.value("connection_password", DEFAULT_PASSWORD, str))
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connectionLayout.addRow(QLabel("Password:"), self.passwordInput)
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self.anonymousChanged()
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connectionGroupBox.setLayout(connectionLayout)
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topicsGroupBox = QGroupBox("Topics")
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topicsLayout = QFormLayout()
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self.topics = self.settings.value("topics_items", DEFAULT_TOPICS, list)
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self.topicsListWidget = QListWidget()
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for topic in self.topics:
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item = QListWidgetItem()
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item.setText(topic)
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item.setFlags(item.flags() | QtCore.Qt.ItemIsEditable)
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self.topicsListWidget.addItem(item)
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topicsLayout.addRow(self.topicsListWidget)
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add = QPushButton("Add")
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add.setFixedWidth(60)
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add.clicked.connect(self.addTopic)
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remove = QPushButton("Remove")
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remove.setFixedWidth(60)
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remove.clicked.connect(self.removeTopic)
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topicsLayout.addRow(add, remove)
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self.timeoutInput = QSpinBox()
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self.timeoutInput.setMaximum(1000)
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self.timeoutInput.setToolTip("Unsubscribe topic and close file when there is not new message after this "
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"timeout (in seconds) expires")
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timeoutLabel = QLabel("Topic timeout(s):")
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timeoutLabel.setToolTip("Unsubscribe topic and close file when there is not new message after this "
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"timeout (in seconds) expires")
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self.timeoutInput.setValue(self.settings.value("topics_timeout", DEFAULT_TIMEOUT, int))
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topicsLayout.addRow(timeoutLabel, self.timeoutInput)
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topicsGroupBox.setLayout(topicsLayout)
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buttonBox = QDialogButtonBox()
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buttonBox.addButton("Save and Reconnect", QDialogButtonBox.AcceptRole)
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buttonBox.addButton("Cancel", QDialogButtonBox.RejectRole)
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buttonBox.accepted.connect(self.accept)
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buttonBox.rejected.connect(self.reject)
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mainLayout = QVBoxLayout()
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mainLayout.addWidget(connectionGroupBox)
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mainLayout.addWidget(topicsGroupBox)
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mainLayout.addWidget(buttonBox)
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self.setLayout(mainLayout)
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def addTopic(self):
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"""
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Add topic
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"""
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item = QListWidgetItem()
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item.setText("/topic")
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item.setFlags(item.flags() | QtCore.Qt.ItemIsEditable)
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self.topicsListWidget.addItem(item)
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def removeTopic(self):
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"""
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Remove topic
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"""
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for item in self.topicsListWidget.selectedItems():
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self.topicsListWidget.takeItem(self.topicsListWidget.row(item))
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def anonymousChanged(self):
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"""
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Changing anonymous/user status
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"""
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self.usernameInput.setEnabled(not self.anonymousInput.isChecked())
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self.passwordInput.setEnabled(not self.anonymousInput.isChecked())
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def accept(self) -> None:
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"""
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Accept changes
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"""
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super().accept()
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self.topics = []
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for index in range(self.topicsListWidget.count()):
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self.topics.append(self.topicsListWidget.item(index).text())
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self.settings.setValue("topics_items", self.topics)
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self.settings.setValue("topics_timeout", self.timeoutInput.value())
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self.settings.setValue("connection_host", self.hostInput.text())
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self.settings.setValue("connection_port", self.portInput.value())
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self.settings.setValue("connection_keepalive", self.keepaliveInput.value())
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self.settings.setValue("connection_anonymous", self.anonymousInput.isChecked())
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self.settings.setValue("connection_username", self.usernameInput.text())
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self.settings.setValue("connection_password", self.passwordInput.text())
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