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weatherwidget.py
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weatherwidget.py
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
#############################################################################
#
# OnAirScreen
# Copyright (c) 2012-2024 Sascha Ludwig, astrastudio.de
# All rights reserved.
#
# start.py
# This file is part of OnAirScreen
#
# 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.
#
# 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."
#
#############################################################################
from PyQt5 import QtCore, QtGui, QtWidgets
import PyQt5.QtNetwork as QtNetwork
import json
class WeatherWidget(QtWidgets.QWidget):
owm_languages = {"Arabic": "ar", "Bulgarian": "bg", "Catalan": "ca", "Czech": "cz", "German": "de",
"Greek": "el", "English": "en", "Persian (Farsi)": "fa", "Finnish": "fi", "French": "fr",
"Galician": "gl", "Croatian": "hr", "Hungarian": "hu", "Italian": "it", "Japanese": "ja",
"Korean": "kr", "Latvian": "la", "Lithuanian": "lt", "Macedonian": "mk", "Dutch": "nl",
"Polish": "pl", "Portuguese": "pt", "Romanian": "ro", "Russian": "ru", "Swedish": "se",
"Slovak": "sk", "Slovenian": "sl", "Spanish": "es", "Turkish": "tr", "Ukrainian": "ua",
"Vietnamese": "vi", "Chinese Simplified": "zh_cn", "Chinese Traditional": "zh_tw."}
owm_units = {"Kelvin": "", "Celsius": "metric", "Fahrenheit": "imperial"}
owm_units_abbrev = {"": "K", "metric": "°C", "imperial": "°F"}
def __init__(self, parent=None):
super(WeatherWidget, self).__init__(parent)
self.nam = None
self.bg = None
self.widgetEnabled = None
self.owmAPIKey = None
self.owmCityID = None
self.owmLanguage = None
self.owmUnit = None
self.readConfig()
self.verticalLayout_3 = QtWidgets.QVBoxLayout(self)
self.verticalLayout_3.setContentsMargins(2, 2, 2, 2)
self.verticalLayout_3.setSpacing(0)
self.verticalLayout = QtWidgets.QVBoxLayout()
self.verticalLayout.setSpacing(0)
# spacerItem = QtWidgets.QSpacerItem(20, 40, QtWidgets.QSizePolicy.Minimum, QtWidgets.QSizePolicy.Expanding)
# self.verticalLayout.addItem(spacerItem)
# city label
self.cityLabel = QtWidgets.QLabel(self)
font = QtGui.QFont()
font.setPointSize(22)
font.setBold(True)
font.setWeight(75)
self.cityLabel.setFont(font)
self.cityLabel.setStyleSheet("color: #fff;")
self.cityLabel.setAlignment(QtCore.Qt.AlignCenter)
cityfx = QtWidgets.QGraphicsDropShadowEffect()
cityfx.setBlurRadius(10)
cityfx.setColor(QtGui.QColor("#000"))
cityfx.setOffset(0, 0)
self.cityLabel.setGraphicsEffect(cityfx)
self.verticalLayout.addWidget(self.cityLabel)
# weather label
self.weatherLabel = QtWidgets.QLabel(self)
font = QtGui.QFont()
font.setPointSize(14)
self.weatherLabel.setFont(font)
self.weatherLabel.setStyleSheet("color: #fff")
self.weatherLabel.setAlignment(QtCore.Qt.AlignCenter)
weatherfx = QtWidgets.QGraphicsDropShadowEffect()
weatherfx.setBlurRadius(10)
weatherfx.setColor(QtGui.QColor("#000"))
weatherfx.setOffset(0, 0)
self.weatherLabel.setGraphicsEffect(weatherfx)
self.verticalLayout.addWidget(self.weatherLabel)
# spacer
spacer_item1 = QtWidgets.QSpacerItem(20, 40, QtWidgets.QSizePolicy.Minimum, QtWidgets.QSizePolicy.Expanding)
self.verticalLayout.addItem(spacer_item1)
self.verticalLayout_3.addLayout(self.verticalLayout)
self.horizontalLayout = QtWidgets.QHBoxLayout()
self.horizontalLayout.setSpacing(0)
# weather icon
self.weatherIcon = QtWidgets.QLabel(self)
icon_pixmap = QtGui.QPixmap()
self.weatherIcon.setPixmap(icon_pixmap)
self.weatherIcon.setAlignment(QtCore.Qt.AlignCenter)
icon_fx = QtWidgets.QGraphicsDropShadowEffect()
icon_fx.setBlurRadius(20)
icon_fx.setColor(QtGui.QColor("#000"))
icon_fx.setOffset(0, 0)
self.weatherIcon.setGraphicsEffect(icon_fx)
self.horizontalLayout.addWidget(self.weatherIcon)
self.verticalLayout_2 = QtWidgets.QVBoxLayout()
self.verticalLayout_2.setSpacing(0)
# temperature label
self.temperatureLabel = QtWidgets.QLabel(self)
font = QtGui.QFont()
font.setPointSize(45)
font.setWeight(75)
self.temperatureLabel.setFont(font)
self.temperatureLabel.setStyleSheet("color: #fff;")
self.temperatureLabel.setAlignment(QtCore.Qt.AlignCenter)
tempfx = QtWidgets.QGraphicsDropShadowEffect()
tempfx.setBlurRadius(20)
tempfx.setColor(QtGui.QColor("#000"))
tempfx.setOffset(0, 0)
self.temperatureLabel.setGraphicsEffect(tempfx)
self.verticalLayout_2.addWidget(self.temperatureLabel)
# condition label
self.conditionLabel = QtWidgets.QLabel(self)
font = QtGui.QFont()
font.setPointSize(13)
self.conditionLabel.setFont(font)
self.conditionLabel.setStyleSheet("color: #fff")
self.conditionLabel.setAlignment(QtCore.Qt.AlignCenter)
condfx = QtWidgets.QGraphicsDropShadowEffect()
condfx.setBlurRadius(10)
condfx.setColor(QtGui.QColor("#000"))
condfx.setOffset(0, 0)
self.conditionLabel.setGraphicsEffect(condfx)
self.verticalLayout_2.addWidget(self.conditionLabel)
self.horizontalLayout.addLayout(self.verticalLayout_2)
self.verticalLayout_3.addLayout(self.horizontalLayout)
# set demo text
self.setData("", "", "")
self.updateWeather()
# start timer for background update every 10 minutes
self.updateTimer = QtCore.QTimer()
self.updateTimer.timeout.connect(self.updateWeather)
self.updateTimer.start(10 * 60 * 1000)
def updateWeather(self):
if self.widgetEnabled:
print("update weather called")
self.makeOWMApiCall()
def setData(self, city, temperature, condition, icon="01d", background=None, label="WEATHER"):
print("Weather:", icon, background)
self.cityLabel.setText(city)
self.temperatureLabel.setText(temperature)
self.conditionLabel.setText(condition)
self.weatherLabel.setText(label)
self.setWeatherIcon(icon)
self.setWeatherBackground(background)
def setWeatherIcon(self, icon):
icon_pixmap = QtGui.QPixmap(":/weather/images/weather_icons/{}.png".format(icon))
icon_pixmap.setDevicePixelRatio(5)
self.weatherIcon.setPixmap(icon_pixmap)
def setWeatherBackground(self, background):
self.bg = ":/weather_backgrounds/images/weather_backgrounds/{}.jpg".format(background)
self.repaint()
def makeOWMApiCall(self):
print("OWM API Call")
url = "https://api.openweathermap.org/data/2.5/weather?id=" + self.owmCityID + "&units=" + self.owmUnit + "&lang=" + self.owmLanguage + "&appid=" + self.owmAPIKey
req = QtNetwork.QNetworkRequest(QtCore.QUrl(url))
self.nam = QtNetwork.QNetworkAccessManager()
self.nam.finished.connect(self.handleOWMResponse)
self.nam.get(req)
def handleOWMResponse(self, reply):
er = reply.error()
if er == QtNetwork.QNetworkReply.NoError:
bytes_string = reply.readAll()
reply_string = str(bytes_string, 'utf-8')
try:
weather_json = (json.loads(reply_string))
except:
error_string = "Unexpected JSON payload in OWM Response: {}".format(reply_string)
print(error_string)
return
main_weather = weather_json["weather"][0]["main"]
condition = weather_json["weather"][0]["description"]
city = weather_json["name"]
unit_symbol = self.owm_units_abbrev.get(self.owmUnit)
temp = "{:.0f}{}".format(weather_json["main"]["temp"], unit_symbol)
icon = weather_json["weather"][0]["icon"]
background = icon
if self.owmLanguage == "de":
label = "WETTER"
else:
label = "WEATHER"
self.setData(city=city, condition=condition, temperature=temp, icon=icon, background=background,
label=label)
else:
error_string = "Error occurred: {}, {}".format(er, reply.errorString())
print(error_string)
def readConfig(self):
# settings
settings = QtCore.QSettings(QtCore.QSettings.UserScope, "astrastudio", "OnAirScreen")
settings.beginGroup("WeatherWidget")
self.widgetEnabled = settings.value('owmWidgetEnabled', False, type=bool)
self.owmAPIKey = settings.value('owmAPIKey', "")
self.owmCityID = settings.value('owmCityID', "2643743")
self.owmLanguage = self.owm_languages.get(settings.value('owmLanguage', "English"))
self.owmUnit = self.owm_units.get(settings.value('owmUnit', "Celsius"))
settings.endGroup()
def paintEvent(self, event):
painter = QtGui.QPainter(self)
painter.setRenderHints(QtGui.QPainter.Antialiasing | QtGui.QPainter.SmoothPixmapTransform)
painter.drawPixmap(0, 0, self.width(), self.height(), QtGui.QPixmap(self.bg))