class SerialPortSelector(QWidget):
open_port = pyqtSignal(str, int)
close_port = pyqtSignal()
def __init__(self, *args):
super(SerialPortSelector, self).__init__(*args)
self.disabled = False
self.init_ui()
self.add_ports()
def init_ui(self):
layout = QHBoxLayout()
self.setLayout(layout)
self.ports_list_combobox = QComboBox()
layout.addWidget(self.ports_list_combobox)
self.baud_rate_combobox = QComboBox()
self.baud_rate_combobox.addItems([
'300', '600', '1200', '2400', '4800', '9600', '19200', '38400',
'43000', '56000', '57600', '115200'
])
self.baud_rate_combobox.setCurrentText('115200')
self.baud_rate_combobox.setEditable(True)
layout.addWidget(self.baud_rate_combobox)
self.open_btn = QPushButton('打开')
self.open_btn.clicked.connect(self.handle_open_port)
layout.addWidget(self.open_btn)
self.refresh_btn = QPushButton('刷新')
self.refresh_btn.clicked.connect(self.add_ports)
layout.addWidget(self.refresh_btn)
def add_ports(self):
self.ports_list_combobox.clear()
for port in comports(False):
self.ports_list_combobox.addItem(port.name, port)
def handle_open_port(self):
if self.disabled:
self.close_port.emit()
else:
port = self.ports_list_combobox.currentText()
if port == "":
return
baud_rate = int(self.baud_rate_combobox.currentText())
self.open_port.emit(port, baud_rate)
def set_disable(self, b):
self.disabled = b
self.ports_list_combobox.setDisabled(b)
self.baud_rate_combobox.setDisabled(b)
if self.disabled:
self.open_btn.setText('关闭')
else:
self.open_btn.setText('打开')
class YTdownloader(QWidget):
def __init__(self):
super().__init__()
# setup some flags
self.isFetching = False
self.isDownloading = False
# default output path
self.outputPath = f'{QDir.homePath()}/videos'
# setup some window specific things
self.setWindowTitle('YouTube Downloader')
self.setWindowIcon(QIcon('assets/yt-icon.ico'))
self.setFixedSize(705, 343)
# parent layout
layout = QVBoxLayout()
layout.setContentsMargins(15, 15, 15, 10)
self.setLayout(layout)
# top bar layout
topBar = QHBoxLayout()
# detail section
detailSec = QHBoxLayout()
metaSec = QVBoxLayout()
# download section
downloadSec = QHBoxLayout()
downloadBtn = QVBoxLayout()
# output path link button
self.outputBtn = QPushButton('📂 Output Path')
self.outputBtn.setCursor(QCursor(Qt.CursorShape.PointingHandCursor))
self.outputBtn.setToolTip(self.outputPath)
self.outputBtn.clicked.connect(self.setOutputPath)
# status bar
self.statusBar = QStatusBar()
# message box
self.message = QMessageBox()
# setting up widgets
self.urlBox = QLineEdit()
self.urlBox.setFocusPolicy(Qt.FocusPolicy.ClickFocus or Qt.FocusPolicy.NoFocus)
self.urlBox.setPlaceholderText('🔍 Enter or paste video URL...')
self.button = QPushButton('Get')
self.button.setDefault(True)
self.button.setCursor(QCursor(Qt.CursorShape.PointingHandCursor))
self.button.clicked.connect(self.getDetails)
# thumbnail
pixmap = QPixmap('assets\placeholder.jpg')
self.thumb = QLabel()
self.thumb.setFixedSize(250, 141)
self.thumb.setScaledContents(True)
self.thumb.setPixmap(pixmap)
# detail widgets
self.title = QLabel('Title: ')
self.author = QLabel('Author: ')
self.length = QLabel('Duration: ')
self.publish_date = QLabel('Published: ')
# progress bar
self.progress_bar = QProgressBar()
# download options
self.download = QComboBox()
self.download.setPlaceholderText('Download Video')
self.download.setCursor(QCursor(Qt.CursorShape.PointingHandCursor))
self.download.activated.connect(lambda: self.getContent(0))
self.download.setEnabled(False)
# download audio button
self.download_audio = QPushButton('Download Audio')
self.download_audio.setCursor(QCursor(Qt.CursorShape.PointingHandCursor))
self.download_audio.clicked.connect(lambda: self.getContent(1))
self.download_audio.setEnabled(False)
# add widgets and layouts
topBar.addWidget(self.urlBox)
topBar.addWidget(self.button)
# detail section
metaSec.addWidget(self.title)
metaSec.addWidget(self.author)
metaSec.addWidget(self.length)
metaSec.addWidget(self.publish_date)
detailSec.addWidget(self.thumb)
detailSec.addSpacing(20)
detailSec.addLayout(metaSec)
# download section
downloadBtn.addWidget(self.download)
downloadBtn.addWidget(self.download_audio)
downloadSec.addWidget(self.progress_bar)
downloadSec.addSpacing(10)
downloadSec.addLayout(downloadBtn)
# status bar
self.statusBar.setSizeGripEnabled(False)
self.statusBar.addPermanentWidget(self.outputBtn)
# add content to parent layout
layout.addLayout(topBar)
layout.addSpacing(20)
layout.addLayout(detailSec)
layout.addSpacing(5)
layout.addLayout(downloadSec)
layout.addWidget(self.statusBar)
# setup a connection thread to keep checking internet connectivity
self.connection = ConnectionThread()
self.connection.start()
# catch the connection response signal
self.connection.con_response.connect(self.connection_slot)
# connection slot
def connection_slot(self, status):
curMsg = self.statusBar.currentMessage()
# connection succeeded
if status:
if curMsg == '🔴 Disconnected':
self.statusBar.showMessage('🟢 Connection restored!', 3000)
elif curMsg != '🟢 Connected':
self.statusBar.showMessage('🟢 Connected')
# connection failed
elif curMsg == '🟢 Connected':
self.statusBar.showMessage('🔴 Connection interrupted!', 3000)
elif curMsg != '🔴 Disconnected':
self.statusBar.showMessage('🔴 Disconnected')
# set output path slot
def setOutputPath(self):
# update the output path
path = str(QFileDialog.getExistingDirectory(self, "Select Output Directory"))
if path:
self.outputPath = path
# update tooltip
self.outputBtn.setToolTip(path)
# get button slot
def getDetails(self):
curMsg = self.statusBar.currentMessage()
if curMsg == '🔴 Disconnected' or curMsg == '🔴 Connection interrupted!':
self.message.critical(
self,
'Error',
'Connection failed!\nAre you sure you\'re connected to the internet ? '
)
elif self.button.text() == 'Get':
self.button.setText('Stop')
# indicate progress bar as busy
self.progress_bar.setRange(0, 0)
# set fetching flag
self.isFetching = True
# setup a worker thread to keep UI responsive
self.worker = WorkerThread(self.urlBox.text())
self.worker.start()
# catch the finished signal
self.worker.finished.connect(self.finished_slot)
# catch the response signal
self.worker.worker_response.connect(self.response_slot)
# catch the error signal
self.worker.worker_err_response.connect(self.err_slot)
elif self.button.text() == 'Stop':
if self.isFetching:
# stop worker thread
self.worker.terminate()
# set back the button text
self.button.setText('Get')
elif self.isDownloading:
# stop download thread
self.download_thread.terminate()
# show the warning message
self.message.information(
self,
'Interrupted',
'Download interrupted!\nThe process was aborted while the file was being downloaded... '
)
# reset pogress bar
self.progress_bar.reset()
# download options slot
def getContent(self, id):
if self.isFetching:
# show the warning message
self.message.warning(
self,
'Warning',
'Please wait!\nWait while the details are being fetched... '
)
else:
# disable the download options
self.download.setDisabled(True)
self.download_audio.setDisabled(True)
# set downloading flag
self.isDownloading = True
# set button to stop
self.button.setText('Stop')
# setup download thread
if id == 0:
self.download_thread = DownloadThread(self.yt, self.download.currentText()[:4], self.outputPath)
else:
self.download_thread = DownloadThread(self.yt, 'audio', self.outputPath)
# start the thread
self.download_thread.start()
# catch the finished signal
self.download_thread.finished.connect(self.download_finished_slot)
# catch the response signal
self.download_thread.download_response.connect(self.download_response_slot)
# catch the complete signal
self.download_thread.download_complete.connect(self.download_complete_slot)
# catch the error signal
self.download_thread.download_err.connect(self.download_err_slot)
# finished slot
def finished_slot(self):
# remove progress bar busy indication
self.progress_bar.setRange(0, 100)
# unset fetching flag
self.isFetching = False
# response slot
def response_slot(self, res):
# set back the button text
self.button.setText('Get')
# save the yt object for speeding up download
self.yt = res[0]
# set the actual thumbnail of requested video
self.thumb.setPixmap(res[1])
# slice the title if it is more than the limit
if len(res[2]) > 50:
self.title.setText(f'Title: {res[2][:50]}...')
else:
self.title.setText(f'Title: {res[2]}')
# set leftover details
self.author.setText(f'Author: {res[3]}')
self.length.setText(f'Duration: {timedelta(seconds=res[4])}')
self.publish_date.setText(f'Published: {res[5].strftime("%d/%m/%Y")}')
# clear any previous items if any
self.download.clear()
# add resolutions as items to the download button and enable them
self.download.addItems([item for item in res[6]])
self.download.setDisabled(False)
self.download_audio.setDisabled(False)
# error slot
def err_slot(self):
# show the warning message
self.message.warning(
self,
'Warning',
'Something went wrong!\nProbably a broken link or some restricted content... '
)
# set back the button text
self.button.setText('Get')
# download finished slot
def download_finished_slot(self):
# set back the button text
self.button.setText('Get')
# now enable the download options
self.download.setDisabled(False)
self.download_audio.setDisabled(False)
# unset downloading flag
self.isDownloading = False
# reset pogress bar
self.progress_bar.reset()
# download response slot
def download_response_slot(self, per):
# update progress bar
self.progress_bar.setValue(per)
# adjust the font color to maintain the contrast
if per > 52:
self.progress_bar.setStyleSheet('QProgressBar { color: #fff }')
else:
self.progress_bar.setStyleSheet('QProgressBar { color: #000 }')
# download complete slot
def download_complete_slot(self, location):
# use native separators
location = QDir.toNativeSeparators(location)
# show the success message
if self.message.information(
self,
'Downloaded',
f'Download complete!\nFile was successfully downloaded to :\n{location}\n\nOpen the downloaded file now ?',
QMessageBox.StandardButtons.Open,
QMessageBox.StandardButtons.Cancel
) is QMessageBox.StandardButtons.Open: subprocess.Popen(f'explorer /select,{location}')
# download error slot
def download_err_slot(self):
# show the error message
self.message.critical(
self,
'Error',
'Error!\nSomething unusual happened and was unable to download...'
)
class Madoka(QWidget):
global serialPort, baud, fmt
def __init__(self):
global serialPort, baud, fmt
self.serialLogState = False
self.fmts = ['bin', 'oct', 'dec', 'hex', 'csv', 'csv+', 'ascii']
self.baudList = [
4800, 7200, 9600, 14400, 19200, 28800, 38400, 57600, 76800, 115200,
230400, 460800, 921600, 1000000, 2000000, 4000000
]
fmt = self.fmts.index(fmt)
super().__init__()
layoutA = QHBoxLayout()
self.baudBox = QComboBox()
self.getBaud()
layoutA.addWidget(self.baudBox)
self.formatBox = QComboBox()
self.getFormat()
layoutA.addWidget(self.formatBox)
layoutB = QHBoxLayout()
self.portBox = QComboBox()
self.getPorts()
layoutB.addWidget(self.portBox)
parentLayout = QVBoxLayout()
parentLayout.addLayout(layoutB)
parentLayout.addLayout(layoutA)
self.setLayout(parentLayout)
self.portBox.currentTextChanged.connect(self.portSelected)
self.portBox.setCurrentIndex(len(self.ports) - 1)
self.baudBox.currentTextChanged.connect(self.baudSelected)
try:
self.baudBox.setCurrentIndex(self.baudList.index(baud))
except:
self.baudBox.setCurrentIndex(-1)
self.formatBox.currentTextChanged.connect(self.formatSelected)
self.formatBox.setCurrentIndex(fmt)
self.button1 = QPushButton()
self.button1.setText("start")
self.button1.released.connect(self.btn1Clicked)
layoutA.addWidget(self.button1)
def portSelected(self, text):
global serialPort
if (text != ''):
serialPort = self.ports[self.portsIndex.index(text)]
# print(serialPort)
# self.erandano.setText(self.port)
def baudSelected(self, text):
global baud
if (text != ''):
baud = text
# print(baud)
def formatSelected(self, text):
global fmt
if (text != ''):
fmt = self.fmts.index(text)
# print(text)
def getPorts(self):
global serialPort
# sys.stderr.write("\n--- Available ports:\n")
self.ports = []
self.portsIndex = []
for n, (port, desc, devid) in enumerate(sorted(comports()), 1):
# sys.stderr.write("--- {:2}: {:20} {!r} \n".format(n, port, desc))
self.ports.append(port)
print(port)
self.portsIndex.append("{:2}: {:20} {!r}".format(n, port, desc))
try:
serialPort = self.ports.index(serialPort)
except:
serialPort = self.ports[len(self.ports) - 1]
for s in self.portsIndex:
self.portBox.addItem(s)
def getBaud(self):
for b in self.baudList:
self.baudBox.addItem(str(b))
def getFormat(self):
global fmt
for f in self.fmts:
self.formatBox.addItem(f)
def btn1Clicked(self):
if (self.button1.text() == 'start'):
self.baudBox.setDisabled(True)
self.formatBox.setDisabled(True)
self.button1.setText('stop')
self.serialLogState = True
th = threading.Thread(target=printData, daemon=True)
th.start()
elif (self.button1.text() == 'stop'):
self.button1.setText('start')
self.baudBox.setDisabled(False)
self.formatBox.setDisabled(False)
self.serialLogState = False