emoji_picker.py 文件源码

def _fill_listbox_font(self, filter_text):
        '''
        Fill the listbox of fonts to choose from

        :param filter_text: The filter text to limit the
                            fonts listed. Only fonts which
                            contain the the filter text as
                            a substring (ignoring case and spaces)
                            are listed.
        :type filter_text: String
        '''
        if _ARGS.debug:
            sys.stdout.write(
                '_fill_listbox_font() filter_text = %s\n'
                %filter_text)
        for child in self._font_popover_scroll.get_children():
            self._font_popover_scroll.remove(child)
        self._font_popover_listbox = Gtk.ListBox()
        self._font_popover_scroll.add(self._font_popover_listbox)
        self._font_popover_listbox.set_visible(True)
        self._font_popover_listbox.set_vexpand(True)
        self._font_popover_listbox.set_selection_mode(Gtk.SelectionMode.SINGLE)
        self._font_popover_listbox.set_activate_on_single_click(True)
        self._font_popover_listbox.connect(
            'row-selected', self.on_font_selected)
        fonts = [
            font
            for font in self._list_font_names()
            if filter_text.replace(' ', '').lower()
            in font.replace(' ', '').lower()]
        for font in fonts:
            label = Gtk.Label(font)
            label.set_xalign(0)
            margin = 1
            label.set_margin_start(margin)
            label.set_margin_end(margin)
            label.set_margin_top(margin)
            label.set_margin_bottom(margin)
            self._font_popover_listbox.insert(label, -1)
        for row in self._font_popover_listbox.get_children():
            row.get_style_context().add_class('font')
        self._font_popover.show_all()