"""
Copyright 2023 Suchinton Chakravarty
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
"""
from main import *
from PyQt5 import QtCore
from PyQt5.QtCore import QPropertyAnimation
from PyQt5.QtWidgets import QWidget
from PyQt5.QtCore import QEasingCurve
from PyQt5.QtWidgets import QGraphicsOpacityEffect
import logging
import json
from . import Kuksa_Instance as kuksa_instance
# Global variables
subscribed = False
block_subscription_updates = False
class UI_Handeler(MainWindow):
def display_sending_message(self):
print("message sent")
def block_updates():
global block_subscription_updates
block_subscription_updates = True
def unblock_updates():
global block_subscription_updates
block_subscription_updates = False
def Hide_Navbar(self, bool_arg):
"""
This method hides the navigation bar of the UI.
Args:
- bool_arg: A boolean value indicating whether to hide the navigation bar or not.
"""
height = self.BottomMenuSubContainer.height()
heightExtended = 75 if bool_arg else 0
self.animation = QPropertyAnimation(
self.BottomMenuSubContainer, b"minimumHeight")
self.animation.setDuration(400)
self.animation.setStartValue(height)
self.animation.setEndValue(heightExtended)
self.animation.setEasingCurve(QtCore.QEasingCurve.InOutQuart)
self.animation.start()
def animateSwitch(self, index):
"""
This method animates the switching of pages for QstackedWidget with the animation being a fade in and out.
Args:
- index: The index of the page to switch to.
"""
self.fader_widget = FaderWidget(
self.stackedWidget.currentWidget(), self.stackedWidget.widget(index))
self.stackedWidget.setCurrentIndex(index)
def toggleMaximized(self):
if self.isMaximized():
self.showNormal()
else:
self.showMaximized()
def moveWindow(self, event):
if event.buttons() == QtCore.Qt.LeftButton:
self.move(self.pos() + event.globalPos() - self.clickPosition)
self.clickPosition = event.globalPos()
event.accept()
def mousePressEvent(self, event):
self.clickPosition = event.globalPos()
event.accept()
def mouseReleaseEvent(self, event):
self.clickPosition = None
event.accept()
def set_instance(self):
self.kuksa = kuksa_instance.KuksaClientSingleton.instance()
self.client = self.kuksa.get_client()
if self.client is not None and self.client.checkConnection():
return True
else:
logging.error("Kuksa client is not connected, try reconnecting")
return False
def stop_client(self):
if self.client is not None and self.client.checkConnection():
self.client.stop()
def subscribe_VSS_Signals(self):
"""
This method subscribes to the VSS signals from Kuksa.
"""
global subscribed
if not subscribed:
self.kuksa = kuksa_instance.KuksaClientSingleton.instance()
self.client = self.kuksa.get_client()
if self.client is not None and self.client.checkConnection():
signals = [
"Vehicle.Speed",
"Vehicle.Powertrain.CombustionEngine.Speed",
"Vehicle.Body.Lights.DirectionIndicator.Left.IsSignaling",
"Vehicle.Body.Lights.DirectionIndicator.Right.IsSignaling",
"Vehicle.Body.Lights.Hazard.IsSignaling",
"Vehicle.Powertrain.FuelSystem.Level",
"Vehicle.Powertrain.CombustionEngine.ECT",
"Vehicle.Powertrain.Transmission.SelectedGear",
"Vehicle.Cabin.HVAC.Station.Row1.Left.Temperature",
"Vehicle.Cabin.HVAC.Station.Row1.Left.FanSpeed",
"Vehicle.Cabin.HVAC.Station.Row1.Right.Temperature",
"Vehicle.Cabin.HVAC.Station.Row1.Right.FanSpeed"]
for signal in signals:
self.client.subscribe(
signal, lambda data: UI_Handeler.VSS_callback(self, data), 'value')
subscribed = True
else:
subscribed = False
logging.error(
"Kuksa client is not connected, try reconnecting")
def VSS_callback(self, data):
"""
This method is the callback function for the VSS signals from Kuksa.
Args:
- data: The data received from the signal.
"""
global block_subscription_updates
if block_subscription_updates:
return
IC_Page = self.stackedWidget.widget(1)
HVAC_Page = self.stackedWidget.widget(2)
info = json.loads(data)
path = info.get('data', {}).get('path')
value = info.get('data', {}).get('dp', {}).get('value')
print(f"Received subscription event: {path} {value}")
if path == "Vehicle.Speed":
IC_Page.Speed_monitor.display(int(IC_Page.Speed_slider.value()))
IC_Page.Speed_slider.setValue(int(value))
if path == "Vehicle.Powertrain.CombustionEngine.Speed":
IC_Page.RPM_slider.setValue(int(value))
IC_Page.RPM_monitor.display(int(IC_Page.RPM_slider.value()))
if path == "Vehicle.Body.Lights.DirectionIndicator.Left.IsSignaling":
IC_Page.leftIndicatorBtn.setChecked(bool(value))
if path == "Vehicle.Body.Lights.DirectionIndicator.Right.IsSignaling":
IC_Page.rightIndicatorBtn.setChecked(bool(value))
if path == "Vehicle.Body.Lights.Hazard.IsSignaling":
IC_Page.hazardBtn.setChecked(bool(value))
if path == "Vehicle.Powertrain.FuelSystem.Level":
IC_Page.fuelLevel_slider.setValue(int(value))
if path == "Vehicle.Powertrain.CombustionEngine.ECT":
IC_Page.coolantTemp_slider.setValue(int(value))
if path == "Vehicle.Powertrain.Transmission.SelectedGear":
if int(value) == 127:
IC_Page.driveBtn.setChecked(True)
elif int(value) == 126:
IC_Page.parkBtn.setChecked(True)
elif int(value) == -1:
IC_Page.reverseBtn.setChecked(True)
elif int(value) == 0:
IC_Page.neutralBtn.setChecked(True)
if path == "Vehicle.Cabin.HVAC.Station.Row1.Left.Temperature":
HVAC_Page.left_temp.setValue(int(value))
if path == "Vehicle.Cabin.HVAC.Station.Row1.Left.FanSpeed":
HVAC_Page.left_fan.setValue(int(value))
if path == "Vehicle.Cabin.HVAC.Station.Row1.Right.Temperature":
HVAC_Page.right_temp.setValue(int(value))
if path == "Vehicle.Cabin.HVAC.Station.Row1.Right.FanSpeed":
HVAC_Page.right_fan.setValue(int(value))
class FaderWidget(QWidget):
def __init__(self, old_widget, new_widget):
super().__init__(new_widget)
self.old_widget = old_widget
self.new_widget = new_widget
self.effect = QGraphicsOpacityEffect()
self.new_widget.setGraphicsEffect(self.effect)
self.animation = QPropertyAnimation(self.effect, b"opacity")
self.animation.setDuration(300)
self.animation.setStartValue(0)
self.animation.setEndValue(1)
self.animation.setEasingCurve(QEasingCurve.OutCubic)
self.animation.finished.connect(self.close)
self.animate()
def animate(self):
self.animation.start()
def close(self):
self.old_widget.close()
self.new_widget.show()
super().close()