Python QGridLayout.setColumnStretch方法代码示例

# 需要导入模块: from qtpy.QtWidgets import QGridLayout [as 别名]
# 或者: from qtpy.QtWidgets.QGridLayout import setColumnStretch [as 别名]
    def setup_gui(self):
        """Setup the main layout of the widget."""
        layout = QGridLayout(self)
        layout.setContentsMargins(0, 0, 0, 0)
        layout.addWidget(self.canvas, 0, 1)
        layout.addLayout(self.setup_toolbar(), 0, 3, 2, 1)

        layout.setColumnStretch(0, 100)
        layout.setColumnStretch(2, 100)
        layout.setRowStretch(1, 100)

# 需要导入模块: from qtpy.QtWidgets import QGridLayout [as 别名]
# 或者: from qtpy.QtWidgets.QGridLayout import setColumnStretch [as 别名]
class ThumbnailScrollBar(QFrame):
    """
    A widget that manages the display of the FigureThumbnails that are
    created when a figure is sent to the IPython console by the kernel and
    that controls what is displayed in the FigureViewer.
    """
    redirect_stdio = Signal(bool)

    def __init__(self, figure_viewer, parent=None, background_color=None):
        super(ThumbnailScrollBar, self).__init__(parent)
        self._thumbnails = []
        self.background_color = background_color
        self.current_thumbnail = None
        self.set_figureviewer(figure_viewer)
        self.setup_gui()

    def setup_gui(self):
        """Setup the main layout of the widget."""
        scrollarea = self.setup_scrollarea()
        up_btn, down_btn = self.setup_arrow_buttons()

        self.setFixedWidth(150)
        layout = QVBoxLayout(self)
        layout.setContentsMargins(0, 0, 0, 0)
        layout.setSpacing(0)
        layout.addWidget(up_btn)
        layout.addWidget(scrollarea)
        layout.addWidget(down_btn)

    def setup_scrollarea(self):
        """Setup the scrollarea that will contain the FigureThumbnails."""
        self.view = QWidget()

        self.scene = QGridLayout(self.view)
        self.scene.setColumnStretch(0, 100)
        self.scene.setColumnStretch(2, 100)

        self.scrollarea = QScrollArea()
        self.scrollarea.setWidget(self.view)
        self.scrollarea.setWidgetResizable(True)
        self.scrollarea.setFrameStyle(0)
        self.scrollarea.setVerticalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
        self.scrollarea.setHorizontalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
        self.scrollarea.setSizePolicy(QSizePolicy(QSizePolicy.Ignored,
                                                  QSizePolicy.Preferred))

        # Set the vertical scrollbar explicitely :
        # This is required to avoid a "RuntimeError: no access to protected
        # functions or signals for objects not created from Python" in Linux.
        self.scrollarea.setVerticalScrollBar(QScrollBar())

        return self.scrollarea

    def setup_arrow_buttons(self):
        """
        Setup the up and down arrow buttons that are placed at the top and
        bottom of the scrollarea.
        """
        # Get the height of the up/down arrow of the default vertical
        # scrollbar :
        vsb = self.scrollarea.verticalScrollBar()
        style = vsb.style()
        opt = QStyleOptionSlider()
        vsb.initStyleOption(opt)
        vsb_up_arrow = style.subControlRect(
                QStyle.CC_ScrollBar, opt, QStyle.SC_ScrollBarAddLine, self)

        # Setup the up and down arrow button :
        up_btn = up_btn = QPushButton(icon=ima.icon('last_edit_location'))
        up_btn.setFlat(True)
        up_btn.setFixedHeight(vsb_up_arrow.size().height())
        up_btn.clicked.connect(self.go_up)

        down_btn = QPushButton(icon=ima.icon('folding.arrow_down_on'))
        down_btn.setFlat(True)
        down_btn.setFixedHeight(vsb_up_arrow.size().height())
        down_btn.clicked.connect(self.go_down)

        return up_btn, down_btn

    def set_figureviewer(self, figure_viewer):
        """Set the bamespace for the FigureViewer."""
        self.figure_viewer = figure_viewer

    # ---- Save Figure
    def save_all_figures_as(self):
        """Save all the figures to a file."""
        self.redirect_stdio.emit(False)
        dirname = getexistingdirectory(self, caption='Save all figures',
                                       basedir=getcwd_or_home())
        self.redirect_stdio.emit(True)
        if dirname:
            return self.save_all_figures_todir(dirname)

    def save_all_figures_todir(self, dirname):
        """Save all figure in dirname."""
        fignames = []
        for thumbnail in self._thumbnails:
            fig = thumbnail.canvas.fig
            fmt = thumbnail.canvas.fmt
#.........这里部分代码省略.........

# 需要导入模块: from qtpy.QtWidgets import QGridLayout [as 别名]
# 或者: from qtpy.QtWidgets.QGridLayout import setColumnStretch [as 别名]
    def setup_page(self):
        self.ICON = ima.icon('genprefs')
        newcb = self.create_checkbox

        # --- Interface
        general_group = QGroupBox(_("General"))

        languages = LANGUAGE_CODES.items()
        language_choices = sorted([(val, key) for key, val in languages])
        language_combo = self.create_combobox(_('Language:'),
                                              language_choices,
                                              'interface_language',
                                              restart=True)

        opengl_options = ['Automatic', 'Desktop', 'Software', 'GLES']
        opengl_choices = list(zip(opengl_options,
                                  [c.lower() for c in opengl_options]))
        opengl_combo = self.create_combobox(_('Rendering engine:'),
                                            opengl_choices,
                                            'opengl',
                                            restart=True)

        single_instance_box = newcb(_("Use a single instance"),
                                    'single_instance',
                                    tip=_("Set this to open external<br> "
                                          "Python files in an already running "
                                          "instance (Requires a restart)"))

        prompt_box = newcb(_("Prompt when exiting"), 'prompt_on_exit')
        popup_console_box = newcb(_("Show internal Spyder errors to report "
                                    "them to Github"), 'show_internal_errors')
        check_updates = newcb(_("Check for updates on startup"),
                              'check_updates_on_startup')

        # Decide if it's possible to activate or not single instance mode
        if running_in_mac_app():
            self.set_option("single_instance", True)
            single_instance_box.setEnabled(False)

        comboboxes_advanced_layout = QHBoxLayout()
        cbs_adv_grid = QGridLayout()
        cbs_adv_grid.addWidget(language_combo.label, 0, 0)
        cbs_adv_grid.addWidget(language_combo.combobox, 0, 1)
        cbs_adv_grid.addWidget(opengl_combo.label, 1, 0)
        cbs_adv_grid.addWidget(opengl_combo.combobox, 1, 1)
        comboboxes_advanced_layout.addLayout(cbs_adv_grid)
        comboboxes_advanced_layout.addStretch(1)

        general_layout = QVBoxLayout()
        general_layout.addLayout(comboboxes_advanced_layout)
        general_layout.addWidget(single_instance_box)
        general_layout.addWidget(prompt_box)
        general_layout.addWidget(popup_console_box)
        general_layout.addWidget(check_updates)
        general_group.setLayout(general_layout)

        # --- Theme
        interface_group = QGroupBox(_("Interface"))

        vertdock_box = newcb(_("Vertical title bars in panes"),
                             'vertical_dockwidget_titlebars')
        verttabs_box = newcb(_("Vertical tabs in panes"),
                             'vertical_tabs')
        animated_box = newcb(_("Animated toolbars and panes"),
                             'animated_docks')
        tear_off_box = newcb(_("Tear off menus"), 'tear_off_menus',
                             tip=_("Set this to detach any<br> "
                                   "menu from the main window"))
        margin_box = newcb(_("Custom margin for panes:"),
                           'use_custom_margin')
        margin_spin = self.create_spinbox("", _("pixels"), 'custom_margin',
                                          0, 0, 30)
        margin_box.toggled.connect(margin_spin.spinbox.setEnabled)
        margin_box.toggled.connect(margin_spin.slabel.setEnabled)
        margin_spin.spinbox.setEnabled(self.get_option('use_custom_margin'))
        margin_spin.slabel.setEnabled(self.get_option('use_custom_margin'))

        cursor_box = newcb(_("Cursor blinking:"),
                           'use_custom_cursor_blinking')
        cursor_spin = self.create_spinbox(
            "", _("ms"),
            'custom_cursor_blinking',
            default=QApplication.cursorFlashTime(),
            min_=0, max_=5000, step=100)
        cursor_box.toggled.connect(cursor_spin.spinbox.setEnabled)
        cursor_box.toggled.connect(cursor_spin.slabel.setEnabled)
        cursor_spin.spinbox.setEnabled(
            self.get_option('use_custom_cursor_blinking'))
        cursor_spin.slabel.setEnabled(
            self.get_option('use_custom_cursor_blinking'))

        margins_cursor_layout = QGridLayout()
        margins_cursor_layout.addWidget(margin_box, 0, 0)
        margins_cursor_layout.addWidget(margin_spin.spinbox, 0, 1)
        margins_cursor_layout.addWidget(margin_spin.slabel, 0, 2)
        margins_cursor_layout.addWidget(cursor_box, 1, 0)
        margins_cursor_layout.addWidget(cursor_spin.spinbox, 1, 1)
        margins_cursor_layout.addWidget(cursor_spin.slabel, 1, 2)
        margins_cursor_layout.setColumnStretch(2, 100)

#.........这里部分代码省略.........

# 需要导入模块: from qtpy.QtWidgets import QGridLayout [as 别名]
# 或者: from qtpy.QtWidgets.QGridLayout import setColumnStretch [as 别名]
    def setup(self):
        """Setup the ShortcutEditor with the provided arguments."""
        # Widgets
        icon_info = HelperToolButton()
        icon_info.setIcon(get_std_icon('MessageBoxInformation'))
        layout_icon_info = QVBoxLayout()
        layout_icon_info.setContentsMargins(0, 0, 0, 0)
        layout_icon_info.setSpacing(0)
        layout_icon_info.addWidget(icon_info)
        layout_icon_info.addStretch(100)

        self.label_info = QLabel()
        self.label_info.setText(
            _("Press the new shortcut and select 'Ok' to confirm, "
              "click 'Cancel' to revert to the previous state, "
              "or use 'Clear' to unbind the command from a shortcut."))
        self.label_info.setAlignment(Qt.AlignTop | Qt.AlignLeft)
        self.label_info.setWordWrap(True)
        layout_info = QHBoxLayout()
        layout_info.setContentsMargins(0, 0, 0, 0)
        layout_info.addLayout(layout_icon_info)
        layout_info.addWidget(self.label_info)
        layout_info.setStretch(1, 100)

        self.label_current_sequence = QLabel(_("Current shortcut:"))
        self.text_current_sequence = QLabel(self.current_sequence)

        self.label_new_sequence = QLabel(_("New shortcut:"))
        self.text_new_sequence = ShortcutLineEdit(self)
        self.text_new_sequence.setPlaceholderText(_("Press shortcut."))

        self.helper_button = HelperToolButton()
        self.helper_button.setIcon(QIcon())
        self.label_warning = QLabel()
        self.label_warning.setWordWrap(True)
        self.label_warning.setAlignment(Qt.AlignTop | Qt.AlignLeft)

        self.button_default = QPushButton(_('Default'))
        self.button_ok = QPushButton(_('Ok'))
        self.button_ok.setEnabled(False)
        self.button_clear = QPushButton(_('Clear'))
        self.button_cancel = QPushButton(_('Cancel'))
        button_box = QHBoxLayout()
        button_box.addWidget(self.button_default)
        button_box.addStretch(100)
        button_box.addWidget(self.button_ok)
        button_box.addWidget(self.button_clear)
        button_box.addWidget(self.button_cancel)

        # New Sequence button box
        self.btn_clear_sequence = create_toolbutton(
            self, icon=ima.icon('editclear'),
            tip=_("Clear all entered key sequences"),
            triggered=self.clear_new_sequence)
        self.button_back_sequence = create_toolbutton(
            self, icon=ima.icon('ArrowBack'),
            tip=_("Remove last key sequence entered"),
            triggered=self.back_new_sequence)

        newseq_btnbar = QHBoxLayout()
        newseq_btnbar.setSpacing(0)
        newseq_btnbar.setContentsMargins(0, 0, 0, 0)
        newseq_btnbar.addWidget(self.button_back_sequence)
        newseq_btnbar.addWidget(self.btn_clear_sequence)

        # Setup widgets
        self.setWindowTitle(_('Shortcut: {0}').format(self.name))
        self.helper_button.setToolTip('')
        style = """
            QToolButton {
              margin:1px;
              border: 0px solid grey;
              padding:0px;
              border-radius: 0px;
            }"""
        self.helper_button.setStyleSheet(style)
        icon_info.setToolTip('')
        icon_info.setStyleSheet(style)

        # Layout
        layout_sequence = QGridLayout()
        layout_sequence.setContentsMargins(0, 0, 0, 0)
        layout_sequence.addLayout(layout_info, 0, 0, 1, 4)
        layout_sequence.addItem(QSpacerItem(15, 15), 1, 0, 1, 4)
        layout_sequence.addWidget(self.label_current_sequence, 2, 0)
        layout_sequence.addWidget(self.text_current_sequence, 2, 2)
        layout_sequence.addWidget(self.label_new_sequence, 3, 0)
        layout_sequence.addWidget(self.helper_button, 3, 1)
        layout_sequence.addWidget(self.text_new_sequence, 3, 2)
        layout_sequence.addLayout(newseq_btnbar, 3, 3)
        layout_sequence.addWidget(self.label_warning, 4, 2, 1, 2)
        layout_sequence.setColumnStretch(2, 100)
        layout_sequence.setRowStretch(4, 100)

        layout = QVBoxLayout()
        layout.addLayout(layout_sequence)
        layout.addSpacing(5)
        layout.addLayout(button_box)
        self.setLayout(layout)

#.........这里部分代码省略.........

# 需要导入模块: from qtpy.QtWidgets import QGridLayout [as 别名]
# 或者: from qtpy.QtWidgets.QGridLayout import setColumnStretch [as 别名]
class SkiviImageWindow(QMainWindow):
    def __init__(self, arr, mgr):
        QMainWindow.__init__(self)

        self.arr = arr

        self.mgr = mgr
        self.main_widget = QWidget()
        self.layout = QGridLayout(self.main_widget)
        self.setCentralWidget(self.main_widget)

        self.label = ImageLabel(self, arr)
        self.label_container = QFrame()
        self.label_container.setFrameShape(QFrame.StyledPanel | QFrame.Sunken)
        self.label_container.setLineWidth(1)

        self.label_container.layout = QGridLayout(self.label_container)
        self.label_container.layout.setContentsMargins(0, 0, 0, 0)
        self.label_container.layout.addWidget(self.label, 0, 0)
        self.layout.addWidget(self.label_container, 0, 0)

        self.mgr.add_window(self)
        self.main_widget.show()

        self.setWindowTitle('Skivi - The skimage viewer.')

        self.mixer_panel = MixerPanel(self.arr)
        self.layout.addWidget(self.mixer_panel, 0, 2)
        self.mixer_panel.show()
        self.mixer_panel.set_callback(self.refresh_image)

        self.rgbv_hist = QuadHistogram(self.arr)
        self.layout.addWidget(self.rgbv_hist, 0, 1)
        self.rgbv_hist.show()

        self.rgb_hsv_disp = RGBHSVDisplay()
        self.layout.addWidget(self.rgb_hsv_disp, 1, 0)
        self.rgb_hsv_disp.show()

        self.layout.setColumnStretch(0, 1)
        self.layout.setRowStretch(0, 1)

        self.save_file = QtWidgets.QPushButton('Save to File')
        self.save_file.clicked.connect(self.save_to_file)
        self.save_stack = QtWidgets.QPushButton('Save to Stack')
        self.save_stack.clicked.connect(self.save_to_stack)
        self.save_file.show()
        self.save_stack.show()

        self.layout.addWidget(self.save_stack, 1, 1)
        self.layout.addWidget(self.save_file, 1, 2)

    def closeEvent(self, event):
        # Allow window to be destroyed by removing any
        # references to it
        self.mgr.remove_window(self)

    def update_histograms(self):
        self.rgbv_hist.update_hists(self.arr)

    def refresh_image(self):
        self.label.update_image()
        self.update_histograms()

    def scale_mouse_pos(self, x, y):
                width = self.label.pm.width()
                height = self.label.pm.height()
                x_frac = 1. * x / width
                y_frac = 1. * y / height
                width = self.arr.shape[1]
                height = self.arr.shape[0]
                new_x = int(width * x_frac)
                new_y = int(height * y_frac)
                return(new_x, new_y)

    def label_mouseMoveEvent(self, evt):
        x = evt.x()
        y = evt.y()
        x, y = self.scale_mouse_pos(x, y)

        # handle tracking out of array bounds
        maxw = self.arr.shape[1]
        maxh = self.arr.shape[0]
        if x >= maxw or y >= maxh or x < 0 or y < 0:
            r = g = b = h = s = v = ''
        else:
            r = self.arr[y, x, 0]
            g = self.arr[y, x, 1]
            b = self.arr[y, x, 2]
            h, s, v = self.mixer_panel.mixer.rgb_2_hsv_pixel(r, g, b)

        self.rgb_hsv_disp.update_vals((x, y, r, g, b, h, s, v))

    def save_to_stack(self):
        from ... import io
        img = self.arr.copy()
        io.push(img)
        msg = dedent('''
            The image has been pushed to the io stack.
            Use io.pop() to retrieve the most recently
#.........这里部分代码省略.........

# 需要导入模块: from qtpy.QtWidgets import QGridLayout [as 别名]
# 或者: from qtpy.QtWidgets.QGridLayout import setColumnStretch [as 别名]

#.........这里部分代码省略.........
            _("Please don't modify these values unless "
              "you know what you're doing!"))
        advanced_label.setWordWrap(True)
        advanced_label.setAlignment(Qt.AlignJustify)

        # Advanced options
        advanced_command_launch = self.create_lineedit(
            _("Command to launch the Python language server: "),
            'advanced/command_launch', alignment=Qt.Horizontal,
            word_wrap=False)
        advanced_host = self.create_lineedit(
            _("IP Address and port to bind the server to: "),
            'advanced/host', alignment=Qt.Horizontal,
            word_wrap=False)
        advanced_port = self.create_spinbox(
            ":", "", 'advanced/port', min_=1, max_=65535, step=1)

        # Advanced layout
        advanced_g_layout = QGridLayout()
        advanced_g_layout.addWidget(advanced_command_launch.label, 1, 0)
        advanced_g_layout.addWidget(advanced_command_launch.textbox, 1, 1)
        advanced_g_layout.addWidget(advanced_host.label, 2, 0)

        advanced_host_port_g_layout = QGridLayout()
        advanced_host_port_g_layout.addWidget(advanced_host.textbox, 1, 0)
        advanced_host_port_g_layout.addWidget(advanced_port.plabel, 1, 1)
        advanced_host_port_g_layout.addWidget(advanced_port.spinbox, 1, 2)
        advanced_g_layout.addLayout(advanced_host_port_g_layout, 2, 1)

        advanced_widget = QWidget()
        advanced_layout = QVBoxLayout()
        advanced_layout.addWidget(advanced_label)
        advanced_layout.addLayout(advanced_g_layout)
        advanced_widget.setLayout(advanced_layout)

        # --- Other servers tab ---
        # Section label
        servers_label = QLabel(
            _("Spyder uses the <a href=\"{lsp_url}\">Language Server "
              "Protocol</a> to provide code completion and linting "
              "for its Editor. Here, you can setup and configure LSP servers "
              "for languages other than Python, so Spyder can provide such "
              "features for those languages as well."
              ).format(lsp_url=LSP_URL))
        servers_label.setOpenExternalLinks(True)
        servers_label.setWordWrap(True)
        servers_label.setAlignment(Qt.AlignJustify)

        # Servers table
        table_group = QGroupBox(_('Available servers:'))
        self.table = LSPServerTable(self, text_color=ima.MAIN_FG_COLOR)
        table_layout = QVBoxLayout()
        table_layout.addWidget(self.table)
        table_group.setLayout(table_layout)

        # Buttons
        self.reset_btn = QPushButton(_("Reset to default values"))
        self.new_btn = QPushButton(_("Set up a new server"))
        self.delete_btn = QPushButton(_("Delete currently selected server"))
        self.delete_btn.setEnabled(False)

        # Slots connected to buttons
        self.new_btn.clicked.connect(self.create_new_server)
        self.reset_btn.clicked.connect(self.reset_to_default)
        self.delete_btn.clicked.connect(self.delete_server)

        # Buttons layout
        btns = [self.new_btn, self.delete_btn, self.reset_btn]
        buttons_layout = QGridLayout()
        for i, btn in enumerate(btns):
            buttons_layout.addWidget(btn, i, 1)
        buttons_layout.setColumnStretch(0, 1)
        buttons_layout.setColumnStretch(1, 2)
        buttons_layout.setColumnStretch(2, 1)

        # Combined layout
        servers_widget = QWidget()
        servers_layout = QVBoxLayout()
        servers_layout.addSpacing(-10)
        servers_layout.addWidget(servers_label)
        servers_layout.addWidget(table_group)
        servers_layout.addSpacing(10)
        servers_layout.addLayout(buttons_layout)
        servers_widget.setLayout(servers_layout)

        # --- Tabs organization ---
        tabs = QTabWidget()
        tabs.addTab(self.create_tab(basic_features_group, advanced_group),
                    _('Introspection'))
        tabs.addTab(self.create_tab(linting_widget), _('Linting'))
        tabs.addTab(self.create_tab(code_style_widget), _('Code style'))
        tabs.addTab(self.create_tab(docstring_style_widget),
                    _('Docstring style'))
        tabs.addTab(self.create_tab(advanced_widget),
                    _('Advanced'))
        tabs.addTab(self.create_tab(servers_widget), _('Other languages'))

        vlayout = QVBoxLayout()
        vlayout.addWidget(tabs)
        self.setLayout(vlayout)

# 需要导入模块: from qtpy.QtWidgets import QGridLayout [as 别名]
# 或者: from qtpy.QtWidgets.QGridLayout import setColumnStretch [as 别名]
    def setup_page(self):
        self.ICON = ima.icon('eyedropper')

        names = self.get_option("names")
        try:
            names.pop(names.index(u'Custom'))
        except ValueError:
            pass
        custom_names = self.get_option("custom_names", [])

        # Interface options
        theme_group = QGroupBox(_("Main interface"))

        # Interface Widgets
        ui_themes = ['Automatic', 'Light', 'Dark']
        ui_theme_choices = list(zip(ui_themes, [ui_theme.lower()
                                                for ui_theme in ui_themes]))
        ui_theme_combo = self.create_combobox(_('Interface theme'),
                                              ui_theme_choices,
                                              'ui_theme',
                                              restart=True)

        styles = [str(txt) for txt in list(QStyleFactory.keys())]
        # Don't offer users the possibility to change to a different
        # style in Gtk-based desktops
        # Fixes Issue 2036
        if is_gtk_desktop() and ('GTK+' in styles):
            styles = ['GTK+']
        choices = list(zip(styles, [style.lower() for style in styles]))
        style_combo = self.create_combobox(_('Qt windows style'), choices,
                                           'windows_style',
                                           default=self.main.default_style)
        self.style_combobox = style_combo.combobox

        themes = ['Spyder 2', 'Spyder 3']
        icon_choices = list(zip(themes, [theme.lower() for theme in themes]))
        icons_combo = self.create_combobox(_('Icon theme'), icon_choices,
                                           'icon_theme', restart=True)

        theme_comboboxes_layout = QGridLayout()
        theme_comboboxes_layout.addWidget(ui_theme_combo.label, 0, 0)
        theme_comboboxes_layout.addWidget(ui_theme_combo.combobox, 0, 1)
        theme_comboboxes_layout.addWidget(style_combo.label, 1, 0)
        theme_comboboxes_layout.addWidget(self.style_combobox, 1, 1)
        theme_comboboxes_layout.addWidget(icons_combo.label, 2, 0)
        theme_comboboxes_layout.addWidget(icons_combo.combobox, 2, 1)

        theme_layout = QVBoxLayout()
        theme_layout.addLayout(theme_comboboxes_layout)
        theme_group.setLayout(theme_layout)

        # Syntax coloring options
        syntax_group = QGroupBox(_("Syntax highlighting theme"))

        # Syntax Widgets
        edit_button = QPushButton(_("Edit selected scheme"))
        create_button = QPushButton(_("Create new scheme"))
        self.delete_button = QPushButton(_("Delete scheme"))
        self.reset_button = QPushButton(_("Reset to defaults"))

        self.preview_editor = CodeEditor(self)
        self.stacked_widget = QStackedWidget(self)
        self.scheme_editor_dialog = SchemeEditor(parent=self,
                                                 stack=self.stacked_widget)

        self.scheme_choices_dict = {}
        schemes_combobox_widget = self.create_combobox('', [('', '')],
                                                       'selected')
        self.schemes_combobox = schemes_combobox_widget.combobox

        # Syntax layout
        syntax_layout = QGridLayout(syntax_group)
        btns = [self.schemes_combobox, edit_button, self.reset_button,
                create_button, self.delete_button]
        for i, btn in enumerate(btns):
            syntax_layout.addWidget(btn, i, 1)
        syntax_layout.setColumnStretch(0, 1)
        syntax_layout.setColumnStretch(1, 2)
        syntax_layout.setColumnStretch(2, 1)
        syntax_layout.setContentsMargins(0, 12, 0, 12)

        # Fonts options
        fonts_group = QGroupBox(_("Fonts"))

        # Fonts widgets
        plain_text_font = self.create_fontgroup(
            option='font',
            title=_("Plain text"),
            fontfilters=QFontComboBox.MonospacedFonts,
            without_group=True)

        rich_text_font = self.create_fontgroup(
            option='rich_font',
            title=_("Rich text"),
            without_group=True)

        # Fonts layouts
        fonts_layout = QGridLayout()
        fonts_layout.addWidget(plain_text_font.fontlabel, 0, 0)
        fonts_layout.addWidget(plain_text_font.fontbox, 0, 1)
#.........这里部分代码省略.........