class Demo(QWidget):
def __init__(self):
super(Demo, self).__init__()
self.resize(500, 400)
self.label = QLineEdit(self)
self.label.setGeometry(0, 10, 450, 38)
self.frame = QFrame(self)
self.frame.setGeometry(120, 120, 100, 100)
self.frame.setStyleSheet('background-color : #B9F9C5')
print(self.frame.width())
print(self.frame.height())
print(self.frame.pos())
self.setAcceptDrops(True)
def dragEnterEvent(self, a0: QtGui.QDragEnterEvent) -> None:
self.setWindowTitle('mouse in')
print(a0.mimeData().text())
a0.accept()
def dragMoveEvent(self, a0: QtGui.QDragMoveEvent) -> None:
print(a0.pos())
# pass
def dropEvent(self, a0: QtGui.QDropEvent) -> None:
self.setWindowTitle('mouse drop')
if self.frame.pos().x() <= a0.pos().x() <= self.frame.pos().x() + self.frame.width() \
and self.frame.pos().y() <= a0.pos().y() <= self.frame.pos().y() + self.frame.height():
self.label.setText(a0.mimeData().text().replace('file:///', ''))
print(a0.mimeData().text())
class StreamScope( QWidget ):
resize_signal = pyqtSignal(int)
resolutions = [
'320x200', # CGA
'320x240', # QVGA
'480x320', # HVGA
'640x480', # VGA
'720x480', # 480p
'800x480', # WVGA
'854x480', # WVGA (NTSC+)
'1024x576', # PAL+
'1024x768', # XGA
'1280x720', # HD
'1280x768', # WXGA
'Elastic'
]
def __init__( self ):
super().__init__()
self.title_bar_h = self.style().pixelMetric( QStyle.PM_TitleBarHeight )
self.devices = get_video_devices()
self.device = '/dev/{0}'.format( self.devices[0] )
res = self.resolutions[0].split( 'x' )
self.res_w = int( res[0])
self.res_h = int( res[1])
self.stream_thread = QThread(parent=self)
self.streamer = DeskStreamer()
self.streamer.moveToThread( self.stream_thread )
self.streamer.finished.connect( self.stream_thread.quit )
self.streamer.finished.connect( self.streamer.deleteLater )
self.stream_thread.finished.connect( self.stream_thread.deleteLater )
self.stream_thread.start()
self.stream_thread.started.connect( self.streamer.long_running )
self.setWindowTitle( self.__class__.__name__ )
self.setGeometry( 0, 0, self.res_w, self.res_h )
self.init_layout()
self.setWindowFlags( self.windowFlags() # Keep existing flags
| Qt.WindowStaysOnTopHint
)
# Show the window
self.show()
def init_layout( self ):
layout1 = QVBoxLayout()
layout2 = QHBoxLayout()
# Get video devices
combo = QComboBox( self )
for i, device in enumerate( self.devices ):
combo.addItem( device )
if device == 'video20':
combo.setCurrentIndex( i )
self.device = '/dev/{0}'.format( device )
combo.activated[str].connect( self.comboChanged )
resolution = QComboBox( self )
for res in self.resolutions:
resolution.addItem( res )
resolution.activated[str].connect( self.resolutionChanged )
# Buttons
self.stream_btn = QPushButton( self, objectName='stream_btn' )
self.stream_btn.setText( 'Stream' )
self.stream_btn.clicked.connect( self.stream )
self.stop_btn = QPushButton( self, objectName='stop_btn' )
self.stop_btn.setText( 'Stop' )
self.stop_btn.clicked.connect( self.stop )
self.frame = QFrame(self )
style='''
QPushButton{
text-align:center;
}
QPushButton#stream_btn{
background-color: orange;
}
QPushButton#stop_btn{
background-color: white;
}
QFrame{
background-color: #3E3E3E;
border-bottom-right-radius: 10px;
border-bottom-left-radius: 10px;
}
'''
self.frame.setStyleSheet( style )
layout2.addWidget( self.stream_btn )
layout2.addWidget( self.stop_btn )
layout2.addWidget( resolution )
layout2.addWidget( combo )
self.frame.setLayout( layout2 )
self.frame.setFixedHeight( self.frame.height()*1.5 )
self.viewfinder = QLabel(self, objectName='view_finder')
style='''
QLabel{
background-color: cyan;
}
QLabel#view_finder{
border:5px solid orange;
background:transparent;
padding:0px;
}
'''
self.viewfinder.setStyleSheet( style )
self.viewfinder.setMinimumWidth( 0 )
self.viewfinder.setMinimumHeight( 0 )
self.viewfinder.setGeometry( QRect( self.frame.pos().x(), 0, self.res_w, self.res_h ) )
layout1.addWidget( self.viewfinder )
layout1.addWidget( self.frame )
layout1.setSpacing(0)
layout1.setContentsMargins( 0 ,0 ,0, 0 )
self.setAttribute( Qt.WA_TranslucentBackground )
self.setLayout( layout1 )
self.update_frustum()
def stream( self ):
if not self.streamer.isStreaming():
self.stream_btn.setStyleSheet( 'background-color: grey;' )
self.stop_btn.setStyleSheet( 'background-color: red;' )
self.viewfinder.setStyleSheet( 'background-color: cyan; border:1px hidden red; background:transparent; ' )
self.update_frustum()
self.streamer.stream()
def stop( self ):
if self.streamer.isStreaming():
self.stream_btn.setStyleSheet( 'background-color: orange;')
self.stop_btn.setStyleSheet( 'background-color: white;')
self.viewfinder.setStyleSheet( 'background-color: cyan; border:5px solid orange; background:transparent; padding:0;' )
self.streamer.stop()
def comboChanged( self, text ):
self.stop()
self.device = '/dev/{0}'.format( text )
def resolutionChanged( self, text ):
self.stop()
if text == 'Elastic':
min_w = 0
min_h = 0
win_w = self.viewfinder.width()
win_h = self.viewfinder.height()
else:
res = text.split( 'x' )
self.res_w = int( res[0] )
self.res_h = int( res[1] )
min_w = self.res_w
min_h = self.res_h
win_w = self.res_w
win_h = self.res_h
self.viewfinder.setMinimumWidth( min_w )
self.viewfinder.setMinimumHeight( min_h )
self.viewfinder.setGeometry( QRect( self.frame.pos().x(), 0, win_w, win_h ) )
self.setGeometry( QRect( self.pos().x(), self.pos().y(), win_w, win_h ) )
self.adjustSize()
def debug_frustum( self ):
print( 'Window: {0}, {1}x{2}'.format( self.pos(), self.width(), self.height() ) )
print( 'Status: {0}'.format( self.title_bar_h ) )
print( 'Scope: {0}, {1}x{2}'.format( self.viewfinder.pos(),self.viewfinder.width(), self.viewfinder.height() ) )
print( 'Device: {0}'.format( self.device ) )
def update_frustum( self ):
#self.debug_frustum()
self.streamer.x = self.pos().x() + self.viewfinder.pos().x() + 0
self.streamer.y = self.pos().y() + self.viewfinder.pos().y() + self.title_bar_h + 5
self.streamer.width = self.viewfinder.width()
self.streamer.height = self.viewfinder.height()
self.streamer.device = self.device
def moveEvent( self, event ):
self.stop()
self.update_frustum()
super().moveEvent(event)
def resizeEvent(self, event = None):
self.stop()
self.update_frustum()
self.resize_signal.emit( 1 )
def closeEvent( self, event ):
self.thread_clean_up()
super().closeEvent( event )
def thread_clean_up( self ):
print( 'Cleaning up thread' )
self.streamer.exit()
self.stream_thread.quit()
self.stream_thread.wait()
