Python PyQt5.QtWidgets.QHBoxLayout() Examples

def initUI(self):
        self.inputLabel = QLabel("Input your text")
        self.editLine = QLineEdit()
        self.printButton = QPushButton("Print")
        self.clearButton = QPushButton("Clear")

        self.printButton.clicked.connect(self.printText)
        self.clearButton.clicked.connect(self.clearText)

        inputLayout = QHBoxLayout()
        inputLayout.addWidget(self.inputLabel)
        inputLayout.addWidget(self.editLine)

        buttonLayout = QHBoxLayout()
        buttonLayout.addWidget(self.printButton)
        buttonLayout.addWidget(self.clearButton)

        mainLayout = QVBoxLayout()
        mainLayout.addLayout(inputLayout)
        mainLayout.addLayout(buttonLayout)

        self.setLayout(mainLayout)
        self.setWindowTitle('FristWindow')
        self.show() 

def __init__(self, parent=None):
        super(TextInput, self).__init__(parent)

        self.setWindowFlags(Qt.Dialog | Qt.FramelessWindowHint)

        self.mainLayout = QVBoxLayout()
        self.textArea = QTextEdit(self)

        self.buttonArea = QWidget(self)
        self.buttonLayout = QHBoxLayout()
        self.cancelButton = QPushButton('Cancel', self)
        self.okButton = QPushButton('Ok', self)
        self.buttonLayout.addWidget(self.cancelButton)
        self.buttonLayout.addWidget(self.okButton)
        self.buttonArea.setLayout(self.buttonLayout)

        self.mainLayout.addWidget(self.textArea)
        self.mainLayout.addWidget(self.buttonArea)
        self.setLayout(self.mainLayout)

        self.textArea.textChanged.connect(self.textChanged_)
        self.okButton.clicked.connect(self.okButtonClicked)
        self.cancelButton.clicked.connect(self.cancelPressed) 

def initUI(self):
		# 块大小
		self.grid_size = 22
		# 游戏帧率
		self.fps = 200
		self.timer = QBasicTimer()
		# 焦点
		self.setFocusPolicy(Qt.StrongFocus)
		# 水平布局
		layout_horizontal = QHBoxLayout()
		self.inner_board = InnerBoard()
		self.external_board = ExternalBoard(self, self.grid_size, self.inner_board)
		layout_horizontal.addWidget(self.external_board)
		self.side_panel = SidePanel(self, self.grid_size, self.inner_board)
		layout_horizontal.addWidget(self.side_panel)
		self.status_bar = self.statusBar()
		self.external_board.score_signal[str].connect(self.status_bar.showMessage)
		self.start()
		self.center()
		self.setWindowTitle('Tetris-公众号:Charles的皮卡丘')
		self.show()
		self.setFixedSize(self.external_board.width() + self.side_panel.width(),
						  self.side_panel.height() + self.status_bar.height()) 

def __init__(self, parent):
        self.parent = parent
        self.parentTab = self.parent.parent

        self.searchThread = BackGroundTextSearch()
        self.searchOptionsLayout = QtWidgets.QHBoxLayout()
        self.searchTabLayout = QtWidgets.QVBoxLayout()
        self.searchTimer = QtCore.QTimer(self.parent)
        self.searchLineEdit = QtWidgets.QLineEdit(self.parent)
        self.searchBookButton = QtWidgets.QToolButton(self.parent)
        self.caseSensitiveSearchButton = QtWidgets.QToolButton(self.parent)
        self.matchWholeWordButton = QtWidgets.QToolButton(self.parent)
        self.searchResultsTreeView = QtWidgets.QTreeView(self.parent)

        self._translate = QtCore.QCoreApplication.translate
        self.search_string = self._translate('SideDock', 'Search')
        self.search_book_string = self._translate('SideDock', 'Search entire book')
        self.case_sensitive_string = self._translate('SideDock', 'Match case')
        self.match_word_string = self._translate('SideDock', 'Match word')

        self.create_widgets() 

def __init__(self, parent=None):
        super().__init__(parent)
        self.textQVBoxLayout = QtWidgets.QVBoxLayout()
        self.textUpQLabel = QtWidgets.QLabel()
        self.textDownQLabel = QtWidgets.QLabel()
        self.textQVBoxLayout.addWidget(self.textUpQLabel)
        self.textQVBoxLayout.addWidget(self.textDownQLabel)
        self.allQHBoxLayout = QtWidgets.QHBoxLayout()
        self.allQHBoxLayout.addLayout(self.textQVBoxLayout, 1)
        self.setLayout(self.allQHBoxLayout)
        self.textUpQLabel.setStyleSheet('''
        color: black;
        ''')
        self.textDownQLabel.setStyleSheet('''
        color: black;
        ''') 

def view_configuration_info(self):
        self.thread_stop = True
        container = QtWidgets.QVBoxLayout()

        label = QtWidgets.QLabel('Configuration Information')
        label.setStyleSheet('font: 18px;')
        container.addWidget(label)

        layout = QtWidgets.QHBoxLayout()
        self.message = QtWidgets.QLabel()
        layout.addWidget(self.message)
        layout.addStretch()
        save_button = QtWidgets.QPushButton('Save')
        layout.addWidget(save_button)

        scroll_layout = FIRSTUI.ScrollWidget(frame=QtWidgets.QFrame.NoFrame)
        FIRSTUI.SharedObjects.server_config_layout(self, scroll_layout, FIRST.config)

        container.addWidget(scroll_layout)
        container.addStretch()
        container.addLayout(layout)

        save_button.clicked.connect(self.save_config)

        return container 

def __init__(self):
        QtWidgets.QWidget.__init__(self)
        uic.loadUi("window.ui", self)
        self.scene = QtWidgets.QGraphicsScene(0, 0, 511, 511)
        self.mainview.setScene(self.scene)
        self.image = QImage(511, 511, QImage.Format_ARGB32_Premultiplied)
        self.pen = QPen()
        self.color_line = QColor(Qt.black)
        self.color_bground = QColor(Qt.white)
        self.draw_once.clicked.connect(lambda: draw_once(self))
        self.clean_all.clicked.connect(lambda: clear_all(self))
        self.btn_bground.clicked.connect(lambda: get_color_bground(self))
        self.btn_line.clicked.connect(lambda: get_color_line(self))
        self.draw_centr.clicked.connect(lambda: draw_centr(self))
        layout = QtWidgets.QHBoxLayout()
        layout.addWidget(self.what)
        layout.addWidget(self.other)
        self.setLayout(layout)
        self.circle.setChecked(True)
        self.canon.setChecked(True)
        #self.circle.toggled.connect(lambda : change_text(self)) 

def initUI(self):      

        self.wid = binWidget(self, self._source)
        
        self.hbox = QtWidgets.QHBoxLayout()
        self.hbox.addWidget(self.wid)
        self.setLayout(self.hbox)

        screen = QtWidgets.QDesktopWidget().screenGeometry()
        self.setGeometry(0, 0, screen.width()-100, screen.height()-100)

        self.setWindowTitle(self._title)
        #self.showMaximized()
        self.wid.activateWindow()

        self.raise_()
        self.installEventFilter(self) 

def __init__(self, parent=None):
        super().__init__(parent)
        prompt = 'user@chatimus ~$'

        self.button = QtWidgets.QPushButton(prompt)
        self.button.setStyleSheet("""color: white; font: bold;
                                     font-size: 18px;""")
        # TODO: intergrate into stylesheet
        # NOTE: setting `outline: None` did not work
        self.button.setFlat(True)

        self.line_edit = LineEdit()
        layout = QtWidgets.QHBoxLayout()
        layout.addWidget(self.button)
        layout.addWidget(self.line_edit)
        layout.setSpacing(0)
        self.setLayout(layout)

        self.listener_signal = self.line_edit.listener_signal
        self.button.clicked.connect(self.give_focus) 

def init_ui(self):
        """Setup control widget UI."""
        self.control_layout = QHBoxLayout()
        self.setLayout(self.control_layout)
        self.reset_button = QPushButton()
        self.reset_button.setFixedSize(40, 40)
        self.reset_button.setIcon(QtGui.QIcon(WIN_PATH))
        self.game_timer = QLCDNumber()
        self.game_timer.setStyleSheet("QLCDNumber {color: red;}")
        self.game_timer.setFixedWidth(100)
        self.move_counter = QLCDNumber()
        self.move_counter.setStyleSheet("QLCDNumber {color: red;}")
        self.move_counter.setFixedWidth(100)

        self.control_layout.addWidget(self.game_timer)
        self.control_layout.addWidget(self.reset_button)
        self.control_layout.addWidget(self.move_counter) 

def __init__(self, parent=None):
        super(SearchLineEdit, self).__init__()
        self.setObjectName("SearchLine")
        self.parent = parent
        self.setMinimumSize(218, 20)
        with open('QSS/searchLine.qss', 'r') as f:
            self.setStyleSheet(f.read())

        self.button = QPushButton(self)
        self.button.setMaximumSize(13, 13)
        self.button.setCursor(QCursor(Qt.PointingHandCursor))

        self.setTextMargins(3, 0, 19, 0)

        self.spaceItem = QSpacerItem(150, 10, QSizePolicy.Expanding)

        self.mainLayout = QHBoxLayout()
        self.mainLayout.addSpacerItem(self.spaceItem)
        # self.mainLayout.addStretch(1)
        self.mainLayout.addWidget(self.button)
        self.mainLayout.addSpacing(10)
        self.mainLayout.setContentsMargins(0, 0, 0, 0)
        self.setLayout(self.mainLayout) 

def __init__(self, ecuscanner):
        super(Ecu_finder, self).__init__()
        self.ecuscanner = ecuscanner
        layoutv = widgets.QVBoxLayout()
        layouth = widgets.QHBoxLayout()
        self.setLayout(layoutv)
        layoutv.addLayout(layouth)
        self.ecuaddr = widgets.QLineEdit()
        self.ecuident = widgets.QLineEdit()
        layouth.addWidget(widgets.QLabel("Addr :"))
        layouth.addWidget(self.ecuaddr)
        layouth.addWidget(widgets.QLabel("ID frame :"))
        layouth.addWidget(self.ecuident)
        button = widgets.QPushButton("VALIDATE")
        layouth.addWidget(button)
        button.clicked.connect(self.check) 

def __init__(self, etree, control, parent=None):
        QtWidgets.QFrame.__init__(self)
        self.setLayout(QtWidgets.QHBoxLayout())
        self.layout().setContentsMargins(0,0,0,0)
        self.layout().setSpacing(0)
        pkmixins.StashMixin._init(self)
        pkmixins.LayoutMixin._init(self, etree, control, parent) 

def __init__(self, etree, control, parent=None):
        QtWidgets.QPushButton.__init__(self)
        self.setLayout(QtWidgets.QHBoxLayout())
        self.layout().setContentsMargins(0,0,0,0)
        self.layout().setSpacing(0)
        pkmixins.LayoutMixin._init(self, etree, control, parent) 

def setupUi(self, About):
        About.setObjectName("About")
        About.resize(498, 369)
        sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Fixed, QtWidgets.QSizePolicy.Fixed)
        sizePolicy.setHorizontalStretch(0)
        sizePolicy.setVerticalStretch(0)
        sizePolicy.setHeightForWidth(About.sizePolicy().hasHeightForWidth())
        About.setSizePolicy(sizePolicy)
        self.verticalLayout = QtWidgets.QVBoxLayout(About)
        self.verticalLayout.setObjectName("verticalLayout")
        self.gridLayout_11 = QtWidgets.QGridLayout()
        self.gridLayout_11.setObjectName("gridLayout_11")
        self.label_6 = QtWidgets.QLabel(About)
        self.label_6.setObjectName("label_6")
        self.gridLayout_11.addWidget(self.label_6, 1, 1, 1, 1)
        spacerItem = QtWidgets.QSpacerItem(40, 20, QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Minimum)
        self.gridLayout_11.addItem(spacerItem, 1, 2, 1, 1)
        spacerItem1 = QtWidgets.QSpacerItem(40, 20, QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Minimum)
        self.gridLayout_11.addItem(spacerItem1, 1, 0, 1, 1)
        spacerItem2 = QtWidgets.QSpacerItem(20, 40, QtWidgets.QSizePolicy.Minimum, QtWidgets.QSizePolicy.Minimum)
        self.gridLayout_11.addItem(spacerItem2, 0, 1, 1, 1)
        spacerItem3 = QtWidgets.QSpacerItem(20, 40, QtWidgets.QSizePolicy.Minimum, QtWidgets.QSizePolicy.Expanding)
        self.gridLayout_11.addItem(spacerItem3, 2, 1, 1, 1)
        self.verticalLayout.addLayout(self.gridLayout_11)
        self.horizontalLayout = QtWidgets.QHBoxLayout()
        self.horizontalLayout.setObjectName("horizontalLayout")
        spacerItem4 = QtWidgets.QSpacerItem(40, 20, QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Minimum)
        self.horizontalLayout.addItem(spacerItem4)
        self.button_close = QtWidgets.QPushButton(About)
        self.button_close.setObjectName("button_close")
        self.horizontalLayout.addWidget(self.button_close)
        self.verticalLayout.addLayout(self.horizontalLayout)

        self.retranslateUi(About)
        QtCore.QMetaObject.connectSlotsByName(About) 

def __init__(self, parent, fname_tensor):
        super(tensorFilesDialog, self).__init__(parent)

        self.fname = fname_tensor

        groupBox = QtWidgets.QGroupBox('Tensor File')
        layout = QtWidgets.QHBoxLayout()

        groupBox.lineEdit = QtWidgets.QLineEdit()
        if self.fname is not None:
            groupBox.lineEdit.setText(self.fname)
        layout.addWidget(groupBox.lineEdit)

        groupBox.selectFile = QtWidgets.QPushButton('&Browse')
        groupBox.selectFile.clicked.connect(lambda: self.selectFile())
        layout.addWidget(groupBox.selectFile)

        groupBox.setLayout(layout)
        self.group_box = groupBox

        self.button_box = QtWidgets.QDialogButtonBox(QtWidgets.QDialogButtonBox.Ok|QtWidgets.QDialogButtonBox.Cancel)
        self.button_box.accepted.connect(self.accept)
        self.button_box.rejected.connect(self.reject)

        mainLayout = QtWidgets.QGridLayout()

        mainLayout.addWidget(self.group_box)
        mainLayout.addWidget(self.button_box)

        self.setLayout(mainLayout)  

        self.setWindowTitle('Tensor file names')
        self.resize(400,200) 

def make_progress_bar(self, parent):
        horizontalLayout_2 = QtWidgets.QHBoxLayout()
        horizontalLayout_2.setObjectName("horizontalLayout_2")
        self.loading_stat = QtWidgets.QLabel(parent)
        horizontalLayout_2.addWidget(self.loading_stat)
        self.progressbar_loading = QtWidgets.QProgressBar(parent)
        horizontalLayout_2.addWidget(self.progressbar_loading)
        self.stop_button = QtWidgets.QPushButton(parent)
        self.stop_button.setMaximumSize(QtCore.QSize(50, 30))
        self.stop_button.setText("stop")
        horizontalLayout_2.addWidget(self.stop_button)
        self.stop_button.clicked.connect(self.stop_button_clicked)
        return horizontalLayout_2 

def __init__(self,
                 parent=None,
                 win=None,
                 method_analysis=None):
        super(XrefDialogMethod, self).__init__(parent)
        self.method_analysis = method_analysis

        title = "Xrefs for the method %s" % self.method_analysis.method

        self.setWindowTitle(title)

        xrefs_list = []

        xrefs_from = self.method_analysis.get_xref_from()
        for ref_class, ref_method, _ in xrefs_from:
            xrefs_list.append(('From', ref_method, ref_class.get_vm_class()))

        xrefs_to = self.method_analysis.get_xref_to()
        for ref_class, ref_method, _ in xrefs_to:
            xrefs_list.append(('To', ref_method, ref_class.get_vm_class()))

        closeButton = QtWidgets.QPushButton("Close")
        closeButton.clicked.connect(self.close)

        xreflayout = QtWidgets.QGridLayout()
        xrefwin = XrefListView(self, win=win, xrefs=xrefs_list)
        xreflayout.addWidget(xrefwin, 0, 0)

        buttonsLayout = QtWidgets.QHBoxLayout()
        buttonsLayout.addStretch(1)
        buttonsLayout.addWidget(closeButton)

        mainLayout = QtWidgets.QVBoxLayout()
        mainLayout.addLayout(xreflayout)
        mainLayout.addLayout(buttonsLayout)

        self.setLayout(mainLayout) 

def __init__(self,
                 parent=None,
                 win=None,
                 current_class=None,
                 class_analysis=None,
                 field_analysis=None):
        super(XrefDialogField, self).__init__(parent)
        self.current_class = current_class
        self.class_analysis = class_analysis
        self.field_analysis = field_analysis

        title = "Xrefs for the field %s" % self.field_analysis.field

        self.setWindowTitle(title)

        xrefs_list = []

        xrefs_read = self.field_analysis.get_xref_read()
        for ref_class, ref_method in xrefs_read:
            xrefs_list.append(('Read', ref_method, ref_class.get_vm_class()))

        xrefs_write = self.field_analysis.get_xref_write()
        for ref_class, ref_method in xrefs_write:
            xrefs_list.append(('Write', ref_method, ref_class.get_vm_class()))

        closeButton = QtWidgets.QPushButton("Close")
        closeButton.clicked.connect(self.close)

        xreflayout = QtWidgets.QGridLayout()
        xrefwin = XrefListView(self, win=win, xrefs=xrefs_list)
        xreflayout.addWidget(xrefwin, 0, 0)

        buttonsLayout = QtWidgets.QHBoxLayout()
        buttonsLayout.addStretch(1)
        buttonsLayout.addWidget(closeButton)

        mainLayout = QtWidgets.QVBoxLayout()
        mainLayout.addLayout(xreflayout)
        mainLayout.addLayout(buttonsLayout)

        self.setLayout(mainLayout) 

def __init__(self, parent=None, win=None, string_analysis=None):
        super(XrefDialogString, self).__init__(parent)
        self.string_analysis = string_analysis

        title = "Xrefs for the string %s" % self.string_analysis.value

        self.setWindowTitle(title)

        xrefs_list = []

        xrefs_from = self.string_analysis.get_xref_from()
        for ref_class, ref_method in xrefs_from:
            xrefs_list.append(('From', ref_method, ref_class.get_vm_class()))

        closeButton = QtWidgets.QPushButton("Close")
        closeButton.clicked.connect(self.close)

        xreflayout = QtWidgets.QGridLayout()
        xrefwin = XrefListView(self, win=win, xrefs=xrefs_list)
        xreflayout.addWidget(xrefwin, 0, 0)

        buttonsLayout = QtWidgets.QHBoxLayout()
        buttonsLayout.addStretch(1)
        buttonsLayout.addWidget(closeButton)

        mainLayout = QtWidgets.QVBoxLayout()
        mainLayout.addLayout(xreflayout)
        mainLayout.addLayout(buttonsLayout)

        self.setLayout(mainLayout) 

def add_list_of_images_to_layout(layout, images):
    ''' adds a list of images shown in a horizontal layout to an
        already existing layout'''
    h_layout = qt_widgets.QHBoxLayout()
    h_box = qt_widgets.QGroupBox('')
    for image in images:
        add_image_to_layout(h_layout, image)
    h_box.setLayout(h_layout)
    layout.addWidget(h_box) 

def add_list_of_images_with_captions_to_layout(layout, images):
    ''' adds a list of images shown in a horizontal layout with
        caption underneath to an already existing layout'''
    h_layout = qt_widgets.QHBoxLayout()
    h_box = qt_widgets.QGroupBox('')
    for image, caption in images:
        widget = qt_widgets.QWidget()
        v_layout = qt_widgets.QVBoxLayout()
        add_image_to_layout(v_layout, image)
        add_text_to_layout(v_layout, caption)
        widget.setLayout(v_layout)
        h_layout.addWidget(widget)
    h_box.setLayout(h_layout)
    layout.addWidget(h_box) 

def add_list_of_images_with_buttons_to_layout(layout, images, parent):
    ''' adds a list of images shown in a horizontal layout with
        button underneath to an already existing layout'''
    h_layout = qt_widgets.QHBoxLayout()
    h_box = qt_widgets.QGroupBox('')
    for image, label in images:
        widget = qt_widgets.QWidget()
        v_layout = qt_widgets.QVBoxLayout()
        add_image_to_layout(v_layout, image)
        add_button(v_layout, label, parent)
        widget.setLayout(v_layout)
        h_layout.addWidget(widget)
    h_box.setLayout(h_layout)
    layout.addWidget(h_box) 

def add_list_of_buttons_to_layout(layout, button_labels, parent):
    ''' adds a list of buttons shown in a horizontal layout to an
        already existing layout'''
    h_layout = qt_widgets.QHBoxLayout()
    h_box = qt_widgets.QGroupBox('')
    for label in button_labels:
        add_button(h_layout, label, parent)
    h_box.setLayout(h_layout)
    layout.addWidget(h_box) 

def create_page(self, page):
        new_page = qt_widgets.QWizardPage()
        layout = qt_widgets.QVBoxLayout()
        for kind, value in page:
            if kind.lower() == "title":
                new_page.setTitle(value)
            elif kind.lower() == "text":
                label = qt_widgets.QLabel(value)
                label.setWordWrap(True)
                layout.addWidget(label)
            elif kind.lower() == "image":
                label =  qt_widgets.QLabel()
                pixmap =  QtGui.QPixmap(value)
                label.setPixmap(pixmap)
                layout.addWidget(label)
            elif kind.lower() == "many images":
                h_layout = qt_widgets.QHBoxLayout()
                h_box = qt_widgets.QGroupBox('')
                for image in value:
                    label =  qt_widgets.QLabel()
                    pixmap =  QtGui.QPixmap(image)
                    label.setPixmap(pixmap)
                    h_layout.addWidget(label)
                h_box.setLayout(h_layout)
                layout.addWidget(h_box)
        new_page.setLayout(layout)
        self.addPage(new_page) 

def __init__(self, parent=None):
        super().__init__(parent)
        self.hbox = QHBoxLayout(self)
        self.hbox.addStretch()
        self.hbox.setContentsMargins(0, 0, 0, 0)
        self.setAttribute(Qt.WA_StyledBackground, True)
        self.setStyleSheet('background-color: red;') 

def _init_ui(self):
        hbox_l2 = QtWidgets.QHBoxLayout()
        hbox_l2.addWidget(self.run_on_startup_qcb)
        settings = mc.model.SettingsM.get()
        self.run_on_startup_qcb.setChecked(settings.run_on_startup)
        self.setLayout(hbox_l2) 

def __init__(self):
        super().__init__()

        self.updating_gui_bool = False

        self.turn_on_off_qcb = QtWidgets.QCheckBox()
        self.turn_on_off_qcb.toggled.connect(self._on_toggled)
        on_off_qhl = QtWidgets.QHBoxLayout()
        on_off_qhl.setContentsMargins(0,0,0,0)
        on_off_qhl.addWidget(QtWidgets.QLabel(self.tr("Turn the dialog and notifications on or off")))
        on_off_qhl.addStretch(1)
        on_off_qhl.addWidget(self.turn_on_off_qcb)
        self.setLayout(on_off_qhl) 

def _init_ui(self):
        welcome = WelcomePage()
        system_tray = SystemTrayPage()
        breathing_notification = BreathingNotificationPage()
        breathing_dialog = BreathingDialogPage()
        breathing_dialog_coming = BreathingDialogComing()

        self.wizard_qsw_w3.addWidget(welcome)
        self.wizard_qsw_w3.addWidget(system_tray)
        self.wizard_qsw_w3.addWidget(breathing_notification)
        self.wizard_qsw_w3.addWidget(breathing_dialog)
        self.wizard_qsw_w3.addWidget(self.initial_setup)
        self.wizard_qsw_w3.addWidget(breathing_dialog_coming)

        self.prev_qpb.clicked.connect(self.on_prev_clicked)
        self.next_qpb.clicked.connect(self.on_next_clicked)

        hbox_l3 = QtWidgets.QHBoxLayout()
        hbox_l3.addStretch(1)
        hbox_l3.addWidget(self.prev_qpb, stretch=1)
        hbox_l3.addWidget(self.next_qpb, stretch=1)
        hbox_l3.addStretch(1)

        vbox_l2 = QtWidgets.QVBoxLayout()
        vbox_l2.addWidget(self.wizard_qsw_w3)
        vbox_l2.addLayout(hbox_l3)

        self.setGeometry(300, 150, 650, 500)
        self.setLayout(vbox_l2)
        self.update_gui()
        self.show() 

def _init_ui(self):
        title_qll = QtWidgets.QLabel("The system tray")
        title_qll.setFont(mc.mc_global.get_font_xxlarge(i_bold=True))
        title_qll.setAlignment(QtCore.Qt.AlignHCenter)

        description_qll = QtWidgets.QLabel(
            "When you run Mindfulness at the computer it is accessible via the system tray. "
            "From the menu that opens when clicking on this icon "
            "you can adjust settings or invoke a breathing or rest session"
        )
        description_qll.setWordWrap(True)
        description_qll.setFont(mc.mc_global.get_font_xlarge())

        system_tray_qll = QtWidgets.QLabel()
        system_tray_qll.setPixmap(QtGui.QPixmap(mc.mc_global.get_app_icon_path("icon-br.png")))
        system_tray_qll.setAlignment(QtCore.Qt.AlignHCenter)

        vbox_l3 = QtWidgets.QVBoxLayout()
        vbox_l3.addSpacing(MARGIN_TOP_INT)
        vbox_l3.addWidget(title_qll)
        vbox_l3.addStretch(1)
        vbox_l3.addWidget(description_qll)
        vbox_l3.addStretch(1)
        vbox_l3.addWidget(system_tray_qll)
        vbox_l3.addStretch(1)

        hbox_l2 = QtWidgets.QHBoxLayout()
        hbox_l2.addStretch(1)
        hbox_l2.addLayout(vbox_l3)
        hbox_l2.addStretch(1)

        self.setLayout(hbox_l2)