Python qltk.Button类代码示例

    def __init__(self, browser):
        if self.is_not_unique():
            return
        super(Preferences, self).__init__()
        self.set_border_width(12)
        self.set_title(_("Playlist Browser Preferences"))
        self.set_default_size(420, 240)
        self.set_transient_for(qltk.get_top_parent(browser))

        box = Gtk.VBox(spacing=6)
        edit_frame = self.edit_display_pane(browser, _("Playlist display"))
        box.pack_start(edit_frame, False, True, 12)

        main_box = Gtk.VBox(spacing=12)
        close = Button(_("_Close"), Icons.WINDOW_CLOSE)
        close.connect('clicked', lambda *x: self.destroy())
        b = Gtk.HButtonBox()
        b.set_layout(Gtk.ButtonBoxStyle.END)
        b.pack_start(close, True, True, 0)

        main_box.pack_start(box, True, True, 0)
        self.use_header_bar()

        if not self.has_close_button():
            main_box.pack_start(b, False, True, 0)
        self.add(main_box)

        close.grab_focus()
        self.show_all()

    def PluginPreferences(self, win):
        box = Gtk.VBox(spacing=12)

        # api key section
        def key_changed(entry, *args):
            config.set("plugins", "fingerprint_acoustid_api_key",
                entry.get_text())

        button = Button(_("Request API key"), Icons.NETWORK_WORKGROUP)
        button.connect("clicked",
            lambda s: util.website("https://acoustid.org/api-key"))
        key_box = Gtk.HBox(spacing=6)
        entry = UndoEntry()
        entry.set_text(get_api_key())
        entry.connect("changed", key_changed)
        label = Gtk.Label(label=_("API _key:"))
        label.set_use_underline(True)
        label.set_mnemonic_widget(entry)
        key_box.pack_start(label, False, True, 0)
        key_box.pack_start(entry, True, True, 0)
        key_box.pack_start(button, False, True, 0)

        box.pack_start(Frame(_("AcoustID Web Service"),
                       child=key_box), True, True, 0)

        return box

    def __init__(self, parent, default="", **kwargs):
        if self.is_not_unique():
            return
        super(TextEdit, self).__init__()
        self.set_title(_("Edit Display"))
        self.set_transient_for(qltk.get_top_parent(parent))
        self.set_border_width(12)
        self.set_default_size(420, 190)

        vbox = Gtk.VBox(spacing=12)
        close = Button(_("_Close"), Icons.WINDOW_CLOSE)
        close.connect('clicked', lambda *x: self.destroy())
        b = Gtk.HButtonBox()
        b.set_layout(Gtk.ButtonBoxStyle.END)
        b.pack_start(close, True, True, 0)

        self.box = box = self.Box(default, **kwargs)
        vbox.pack_start(box, True, True, 0)
        self.use_header_bar()
        if not self.has_close_button():
            vbox.pack_start(b, False, True, 0)

        self.add(vbox)
        self.apply = box.apply
        self.revert = box.revert

        close.grab_focus()
        self.get_child().show_all()

    def enabled(self):
        self.scrolled_window = Gtk.ScrolledWindow()
        self.scrolled_window.set_policy(Gtk.PolicyType.AUTOMATIC,
                                        Gtk.PolicyType.AUTOMATIC)
        self.adjustment = self.scrolled_window.get_vadjustment()

        self.textview = Gtk.TextView()
        self.textbuffer = self.textview.get_buffer()
        self._italics = self.textbuffer.create_tag("italic", style="italic",
                                                   foreground="grey")
        self.textview.set_editable(False)
        self.textview.set_cursor_visible(False)
        self.textview.set_wrap_mode(Gtk.WrapMode.WORD)
        self.textview.set_justification(Gtk.Justification.CENTER)
        self.textview.connect('key-press-event', self.key_press_event_cb)
        add_css(self.textview, "* { padding: 6px; }")
        vbox = Gtk.VBox()
        vbox.pack_start(self.textview, True, True, 0)
        self._edit_button = Button("Edit Lyrics", Icons.EDIT)
        hbox = Gtk.HBox()
        hbox.pack_end(self._edit_button, False, False, 3)
        vbox.pack_start(hbox, False, False, 3)
        self.scrolled_window.add(vbox)
        self.textview.show()

        self.scrolled_window.show()
        self._sig = None
        cur = app.player.info
        if cur is not None:
            cur = SongWrapper(cur)
        self.plugin_on_song_started(cur)

    def __init__(self, count=0, text="", initial={}, limit=3):
        """count: the total amount of items expected, 0 for unknown/indefinite
        text: text to display in the label; may contain % formats
        initial: initial values for % formats (text % initial)
        limit: count must be greater than limit (or 0) for pause/stop to appear

        The current iteration of the counter can be gotten as
        self.current. count can be gotten as self.count.
        """

        super(WaitLoadBase, self).__init__()

        self._label = Gtk.Label()
        self._label.set_use_markup(True)

        self._progress = Gtk.ProgressBar()
        self._progress.set_pulse_step(0.08)
        self.pulse = self._progress.pulse
        self.set_fraction = self._progress.set_fraction
        self.set_text = self._label.set_markup

        self.setup(count, text, initial)

        if self.count > limit or self.count == 0:
            # Add stop/pause buttons. count = 0 means an indefinite
            # number of steps.
            self._cancel_button = Button(_("_Stop"), Icons.PROCESS_STOP)
            self._pause_button = ToggleButton(_("P_ause"),
                                              Icons.MEDIA_PLAYBACK_PAUSE)
            self._cancel_button.connect('clicked', self.__cancel_clicked)
            self._pause_button.connect('clicked', self.__pause_clicked)
        else:
            self._cancel_button = None
            self._pause_button = None

    def __init__(self, filters, browser, parent=None):
        super(SelectionWindow, self).__init__()
        self.set_border_width(10)
        self.set_title(FilterAll.PLUGIN_NAME)
        self.set_default_size(200, 250)
        self.set_transient_for(parent)

        model = Gtk.ListStore(bool, str, str)
        for key, value in sorted(filters.items()):
            model.append(row=[False, key, value])

        toggle = Gtk.CellRendererToggle()
        toggle.connect("toggled", self.__toggeled, model, browser)
        text = Gtk.CellRendererText()

        toggle_column = Gtk.TreeViewColumn("", toggle, active=0)
        column = Gtk.TreeViewColumn(_("Tag"), text, text=1)

        view = Gtk.TreeView(model)
        view.append_column(toggle_column)
        view.append_column(column)

        sw = Gtk.ScrolledWindow()
        sw.set_policy(Gtk.PolicyType.AUTOMATIC, Gtk.PolicyType.AUTOMATIC)
        sw.set_shadow_type(Gtk.ShadowType.IN)
        sw.add(view)

        buttons = Gtk.HButtonBox()
        buttons.set_spacing(6)
        buttons.set_layout(Gtk.ButtonBoxStyle.END)
        close = Button(_("_Close"), Icons.WINDOW_CLOSE)
        close.connect('clicked', lambda *x: self.destroy())
        buttons.pack_start(close, True, True, 0)

        box = Gtk.VBox(spacing=12)
        box.pack_start(sw, True, True, 0)
        box.pack_start(buttons, False, True, 0)

        self.add(box)

        self.show_all()

    def PluginPreferences(self, *args):
        vbox = Gtk.VBox(spacing=12)

        label = Gtk.Label(label=_("Visualiser executable:"))

        def edited(widget):
            self.executable = widget.get_text()
        entry = UndoEntry()
        entry.connect('changed', edited)
        entry.set_text(self.executable)
        hbox = Gtk.HBox(spacing=6)
        hbox.pack_start(label, False, False, 0)
        hbox.pack_start(entry, True, True, 0)
        vbox.pack_start(hbox, True, True, 0)

        def refresh_clicked(widget):
            self.disabled()
            self.enabled()
        refresh_button = Button(_("Reload"), Icons.VIEW_REFRESH)
        refresh_button.connect('clicked', refresh_clicked)
        vbox.pack_start(refresh_button, False, False, 0)
        return vbox

    def __init__(self, browser):
        if self.is_not_unique():
            return
        super(Preferences, self).__init__()

        self._browser = browser

        self.set_transient_for(qltk.get_top_parent(browser))
        self.set_default_size(350, 225)
        self.set_border_width(12)

        self.set_title(_("Album Collection Preferences"))

        vbox = Gtk.VBox(spacing=12)

        editor = PatternEditor()
        editor.headers = get_headers()

        apply = Button(_("_Apply"))
        connect_obj(apply, "clicked", self.__apply, editor, False)

        cancel = Button(_("_Cancel"))
        cancel.connect("clicked", lambda x: self.destroy())

        box = Gtk.HButtonBox()
        box.set_spacing(6)
        box.set_layout(Gtk.ButtonBoxStyle.END)
        box.pack_start(apply, True, True, 0)
        self.use_header_bar()
        if not self.has_close_button():
            box.pack_start(cancel, True, True, 0)

        vbox.pack_start(editor, True, True, 0)
        vbox.pack_start(box, False, True, 0)

        self.add(vbox)

        apply.grab_focus()
        self.show_all()

    def __init__(self, parent, library):
        super(RenameFiles, self).__init__(spacing=6)
        self.__skip_interactive = False
        self.set_border_width(12)

        hbox = Gtk.HBox(spacing=6)
        cbes_defaults = NBP_EXAMPLES.split("\n")
        self.combo = ComboBoxEntrySave(NBP, cbes_defaults,
            title=_("Path Patterns"),
            edit_title=_(u"Edit saved patterns…"))
        self.combo.show_all()
        hbox.pack_start(self.combo, True, True, 0)
        self.preview = qltk.Button(_("_Preview"), Icons.VIEW_REFRESH)
        self.preview.show()
        hbox.pack_start(self.preview, False, True, 0)
        self.pack_start(hbox, False, True, 0)
        self.combo.get_child().connect('changed', self._changed)

        model = ObjectStore()
        self.view = Gtk.TreeView(model=model)
        self.view.show()

        sw = Gtk.ScrolledWindow()
        sw.set_shadow_type(Gtk.ShadowType.IN)
        sw.set_policy(Gtk.PolicyType.AUTOMATIC, Gtk.PolicyType.AUTOMATIC)
        sw.add(self.view)
        self.pack_start(sw, True, True, 0)

        self.pack_start(Gtk.VBox(), False, True, 0)

        # rename options
        rename_options = Gtk.HBox()

        # file name options
        filter_box = FilterPluginBox(self.handler, self.FILTERS)
        filter_box.connect("preview", self.__filter_preview)
        filter_box.connect("changed", self.__filter_changed)
        self.filter_box = filter_box

        frame_filename_options = Frame(_("File names"), filter_box)
        frame_filename_options.show_all()
        rename_options.pack_start(frame_filename_options, False, True, 0)

        # album art options
        albumart_box = Gtk.VBox()

        # move art
        moveart_box = Gtk.VBox()
        self.moveart = ConfigCheckButton(
             _('_Move album art'),
             "rename", "move_art", populate=True)
        self.moveart.set_tooltip_text(
             _("See '[albumart] filenames' config entry " +
               "for image search strings"))
        self.moveart.show()
        moveart_box.pack_start(self.moveart, False, True, 0)
        self.moveart_overwrite = ConfigCheckButton(
             _('_Overwrite album art at target'),
             "rename", "move_art_overwrite", populate=True)
        self.moveart_overwrite.show()
        moveart_box.pack_start(self.moveart_overwrite, False, True, 0)
        albumart_box.pack_start(moveart_box, False, True, 0)
        # remove empty
        removeemptydirs_box = Gtk.VBox()
        self.removeemptydirs = ConfigCheckButton(
             _('_Remove empty directories'),
             "rename", "remove_empty_dirs", populate=True)
        self.removeemptydirs.show()
        removeemptydirs_box.pack_start(self.removeemptydirs, False, True, 0)
        albumart_box.pack_start(removeemptydirs_box, False, True, 0)

        frame_albumart_options = Frame(_("Album art"), albumart_box)
        frame_albumart_options.show_all()
        rename_options.pack_start(frame_albumart_options, False, True, 0)

        self.pack_start(rename_options, False, True, 0)

        # Save button
        self.save = Button(_("_Save"), Icons.DOCUMENT_SAVE)
        self.save.show()
        bbox = Gtk.HButtonBox()
        bbox.set_layout(Gtk.ButtonBoxStyle.END)
        bbox.pack_start(self.save, True, True, 0)
        self.pack_start(bbox, False, True, 0)

        render = Gtk.CellRendererText()
        column = TreeViewColumn(title=_('File'))
        column.pack_start(render, True)

        def cell_data_file(column, cell, model, iter_, data):
            entry = model.get_value(iter_)
            cell.set_property("text", entry.name)

        column.set_cell_data_func(render, cell_data_file)

        column.set_sizing(Gtk.TreeViewColumnSizing.AUTOSIZE)
        self.view.append_column(column)

        render = Gtk.CellRendererText()
        render.set_property('editable', True)
#.........这里部分代码省略.........

class RenameFiles(Gtk.VBox):
    title = _("Rename Files")
    FILTERS = [SpacesToUnderscores, StripWindowsIncompat, StripDiacriticals,
               StripNonASCII, Lowercase]
    handler = RenameFilesPluginHandler()
    IMAGE_EXTENSIONS = ['jpg', 'jpeg', 'png', 'bmp']

    @classmethod
    def init_plugins(cls):
        PluginManager.instance.register_handler(cls.handler)

    def __init__(self, parent, library):
        super(RenameFiles, self).__init__(spacing=6)
        self.__skip_interactive = False
        self.set_border_width(12)

        hbox = Gtk.HBox(spacing=6)
        cbes_defaults = NBP_EXAMPLES.split("\n")
        self.combo = ComboBoxEntrySave(NBP, cbes_defaults,
            title=_("Path Patterns"),
            edit_title=_(u"Edit saved patterns…"))
        self.combo.show_all()
        hbox.pack_start(self.combo, True, True, 0)
        self.preview = qltk.Button(_("_Preview"), Icons.VIEW_REFRESH)
        self.preview.show()
        hbox.pack_start(self.preview, False, True, 0)
        self.pack_start(hbox, False, True, 0)
        self.combo.get_child().connect('changed', self._changed)

        model = ObjectStore()
        self.view = Gtk.TreeView(model=model)
        self.view.show()

        sw = Gtk.ScrolledWindow()
        sw.set_shadow_type(Gtk.ShadowType.IN)
        sw.set_policy(Gtk.PolicyType.AUTOMATIC, Gtk.PolicyType.AUTOMATIC)
        sw.add(self.view)
        self.pack_start(sw, True, True, 0)

        self.pack_start(Gtk.VBox(), False, True, 0)

        # rename options
        rename_options = Gtk.HBox()

        # file name options
        filter_box = FilterPluginBox(self.handler, self.FILTERS)
        filter_box.connect("preview", self.__filter_preview)
        filter_box.connect("changed", self.__filter_changed)
        self.filter_box = filter_box

        frame_filename_options = Frame(_("File names"), filter_box)
        frame_filename_options.show_all()
        rename_options.pack_start(frame_filename_options, False, True, 0)

        # album art options
        albumart_box = Gtk.VBox()

        # move art
        moveart_box = Gtk.VBox()
        self.moveart = ConfigCheckButton(
             _('_Move album art'),
             "rename", "move_art", populate=True)
        self.moveart.set_tooltip_text(
             _("See '[albumart] filenames' config entry " +
               "for image search strings"))
        self.moveart.show()
        moveart_box.pack_start(self.moveart, False, True, 0)
        self.moveart_overwrite = ConfigCheckButton(
             _('_Overwrite album art at target'),
             "rename", "move_art_overwrite", populate=True)
        self.moveart_overwrite.show()
        moveart_box.pack_start(self.moveart_overwrite, False, True, 0)
        albumart_box.pack_start(moveart_box, False, True, 0)
        # remove empty
        removeemptydirs_box = Gtk.VBox()
        self.removeemptydirs = ConfigCheckButton(
             _('_Remove empty directories'),
             "rename", "remove_empty_dirs", populate=True)
        self.removeemptydirs.show()
        removeemptydirs_box.pack_start(self.removeemptydirs, False, True, 0)
        albumart_box.pack_start(removeemptydirs_box, False, True, 0)

        frame_albumart_options = Frame(_("Album art"), albumart_box)
        frame_albumart_options.show_all()
        rename_options.pack_start(frame_albumart_options, False, True, 0)

        self.pack_start(rename_options, False, True, 0)

        # Save button
        self.save = Button(_("_Save"), Icons.DOCUMENT_SAVE)
        self.save.show()
        bbox = Gtk.HButtonBox()
        bbox.set_layout(Gtk.ButtonBoxStyle.END)
        bbox.pack_start(self.save, True, True, 0)
        self.pack_start(bbox, False, True, 0)

        render = Gtk.CellRendererText()
        column = TreeViewColumn(title=_('File'))
        column.pack_start(render, True)

#.........这里部分代码省略.........

class ViewLyrics(EventPlugin, UserInterfacePlugin):
    """The plugin for viewing lyrics in the main window."""

    PLUGIN_ID = 'View Lyrics'
    PLUGIN_NAME = _('View Lyrics')
    PLUGIN_DESC = _('Automatically displays tag or file-based lyrics '
                    'in a sidebar.')
    PLUGIN_ICON = Icons.FORMAT_JUSTIFY_FILL

    def enabled(self):
        self.scrolled_window = Gtk.ScrolledWindow()
        self.scrolled_window.set_policy(Gtk.PolicyType.AUTOMATIC,
                                        Gtk.PolicyType.AUTOMATIC)
        self.adjustment = self.scrolled_window.get_vadjustment()

        self.textview = Gtk.TextView()
        self.textbuffer = self.textview.get_buffer()
        self._italics = self.textbuffer.create_tag("italic", style="italic",
                                                   foreground="grey")
        self.textview.set_editable(False)
        self.textview.set_cursor_visible(False)
        self.textview.set_wrap_mode(Gtk.WrapMode.WORD)
        self.textview.set_justification(Gtk.Justification.CENTER)
        self.textview.connect('key-press-event', self.key_press_event_cb)
        add_css(self.textview, "* { padding: 6px; }")
        vbox = Gtk.VBox()
        vbox.pack_start(self.textview, True, True, 0)
        self._edit_button = Button("Edit Lyrics", Icons.EDIT)
        hbox = Gtk.HBox()
        hbox.pack_end(self._edit_button, False, False, 3)
        vbox.pack_start(hbox, False, False, 3)
        self.scrolled_window.add(vbox)
        self.textview.show()

        self.scrolled_window.show()
        self._sig = None
        cur = app.player.info
        if cur is not None:
            cur = SongWrapper(cur)
        self.plugin_on_song_started(cur)

    def create_sidebar(self):
        vbox = Gtk.VBox(margin=0)
        vbox.pack_start(self.scrolled_window, True, True, 0)
        vbox.show_all()
        return vbox

    def disabled(self):
        self.textview.destroy()
        self.scrolled_window.destroy()

    def plugin_on_song_started(self, song):
        """Called when a song is started. Loads the lyrics.

        If there are lyrics associated with `song`, load them into the
        lyrics viewer. Otherwise, hides the lyrics viewer.
        """
        lyrics = None
        if song is not None:
            print_d("Looking for lyrics for %s" % song("~filename"))
            lyrics = song("~lyrics")
            if lyrics:
                self.textbuffer.set_text(lyrics)
                self.adjustment.set_value(0)    # Scroll to the top.
                self.textview.show()
            else:
                title = _("No lyrics found for\n %s") % song("~basename")
                self._set_italicised(title)

            def edit(widget):
                print_d("Launching lyrics editor for %s" % song("~filename"))
                assert isinstance(song, SongWrapper)
                information = Information(app.librarian, [song._song])
                information.get_child()._switch_to_lyrics()
                information.show()

            if self._sig:
                self._edit_button.disconnect(self._sig)
            self._sig = self._edit_button.connect('clicked', edit)

    def _set_italicised(self, title):
        self.textbuffer.set_text(title)
        start = self.textbuffer.get_start_iter()
        end = self.textbuffer.get_end_iter()
        self.textbuffer.remove_all_tags(start, end)
        self.textbuffer.apply_tag(self._italics, start, end)

    def plugin_on_changed(self, songs):
        cur = app.player.info
        if cur:
            fn = cur("~filename")
            for s in songs:
                if s("~filename") == fn:
                    print_d("Active song changed, reloading lyrics")
                    self.plugin_on_song_started(SongWrapper(cur))
        else:
            self._set_italicised(_("No active song"))

    def key_press_event_cb(self, widget, event):
        """Handles up/down "key-press-event" in the lyrics view."""
#.........这里部分代码省略.........

    def __init__(self, model):
        songs_text = numeric_phrase("%d duplicate group",
                                    "%d duplicate groups",
                                    len(model))
        super(DuplicateDialog, self).__init__()
        self.set_destroy_with_parent(True)
        self.set_title("Quod Libet - %s (%s)" % (Duplicates.PLUGIN_NAME,
                                                 songs_text))
        self.finished = False
        self.set_default_size(960, 480)
        self.set_border_width(6)
        swin = Gtk.ScrolledWindow()
        swin.set_policy(Gtk.PolicyType.AUTOMATIC, Gtk.PolicyType.AUTOMATIC)
        swin.set_shadow_type(Gtk.ShadowType.IN)
        # Set up the browser view
        view = DuplicateSongsView(model)

        def cell_text(column, cell, model, iter_, index):
            text = model[iter_][index]
            cell.markup = text
            cell.set_property("markup", text)

        # Set up the columns
        for i, (tag, f) in enumerate(DuplicatesTreeModel.TAG_MAP):
            e = (Pango.EllipsizeMode.START if tag == '~filename'
                else Pango.EllipsizeMode.END)
            render = Gtk.CellRendererText()
            render.set_property("ellipsize", e)
            col = Gtk.TreeViewColumn(util.tag(tag), render)
            # Numeric columns are better smaller here.
            if tag.startswith("~#"):
                col.set_fixed_width(80)
                col.set_sizing(Gtk.TreeViewColumnSizing.FIXED)
            else:
                col.set_expand(True)
                col.set_sizing(Gtk.TreeViewColumnSizing.AUTOSIZE)
            col.set_resizable(True)
            col.set_cell_data_func(render, cell_text, i + 1)
            view.append_column(col)

        view.connect('popup-menu', self.__songs_popup_menu)
        swin.add(view)
        # A basic information area
        hbox = Gtk.HBox(spacing=6)

        def expand_all(*args):
            model = view.get_model()
            for row in model:
                if view.row_expanded(row.path):
                    view.collapse_row(row.path)
            else:
                for row in model:
                    view.expand_row(row.path, False)

        expand = Gtk.Button(_("Collapse / Expand all"))
        connect_obj(expand, "clicked", expand_all, view)
        hbox.pack_start(expand, False, True, 0)

        label = Gtk.Label(label=_("Duplicate key expression is '%s'") %
                Duplicates.get_key_expression())
        hbox.pack_start(label, True, True, 0)
        close = Button(_("_Close"), Icons.WINDOW_CLOSE)
        close.connect('clicked', self.__quit)
        hbox.pack_start(close, False, True, 0)

        vbox = Gtk.VBox(spacing=6)
        vbox.pack_start(swin, True, True, 0)
        vbox.pack_start(hbox, False, True, 0)
        self.add(vbox)
        self.show_all()

    def __init__(self, browser):
        if self.is_not_unique():
            return
        super(Preferences, self).__init__()
        self.set_border_width(12)
        self.set_title(_("Cover Grid Preferences"))
        self.set_default_size(420, 380)
        self.set_transient_for(qltk.get_top_parent(browser))
        # Do this config-driven setup at instance-time
        self._PREVIEW_ITEM["~rating"] = format_rating(0.75)
        self.mag_lock = False

        box = Gtk.VBox(spacing=6)
        vbox = Gtk.VBox(spacing=6)
        cb = ConfigCheckButton(
            _("Show album _text"), "browsers", "album_text")
        cb.set_active(config.getboolean("browsers", "album_text"))
        cb.connect('toggled',
                   lambda s: browser.toggle_text())
        vbox.pack_start(cb, False, True, 0)

        cb2 = ConfigCheckButton(
            _("Show \"All Albums\" Item"), "browsers", "covergrid_all")
        cb2.set_active(config.getboolean("browsers", "covergrid_all", False))
        cb2.connect('toggled',
                   lambda s: browser.view.get_model().refilter())
        vbox.pack_start(cb2, False, True, 0)

        cb3 = ConfigCheckButton(
            _("Wide Mode"), "browsers", "covergrid_wide")
        cb3.set_active(config.getboolean("browsers",
            "covergrid_wide", False))
        cb3.connect('toggled',
                   lambda s: browser.toggle_wide())
        vbox.pack_start(cb3, False, True, 0)

        # Redraws the covers only when the user releases the slider
        def mag_button_press(*_):
            self.mag_lock = True

        def mag_button_release(mag, _):
            self.mag_lock = False
            mag_changed(mag)

        def mag_changed(mag):
            if self.mag_lock:
                return
            newmag = mag.get_value()
            oldmag = config.getfloat("browsers", "covergrid_magnification", 3.)
            if newmag == oldmag:
                print_d("Covergrid magnification haven't changed: {0}"
                        .format(newmag))
                return
            print_d('Covergrid magnification update from {0} to {1}'
                    .format(oldmag, newmag))
            config.set("browsers", "covergrid_magnification", mag.get_value())
            browser.update_mag()

        mag_scale = Gtk.HScale(
            adjustment=Gtk.Adjustment.new(config.getfloat("browsers",
                "covergrid_magnification", 3), 0., 10., .5, .5, 0))
        mag_scale.set_tooltip_text(_("Cover Magnification"))
        l = Gtk.Label(label=_("Cover Magnification"))
        mag_scale.set_value_pos(Gtk.PositionType.RIGHT)
        mag_scale.connect('button-press-event', mag_button_press)
        mag_scale.connect('button-release-event', mag_button_release)
        mag_scale.connect('value-changed', mag_changed)

        vbox.pack_start(l, False, True, 0)
        vbox.pack_start(mag_scale, False, True, 0)

        f = qltk.Frame(_("Options"), child=vbox)
        box.pack_start(f, False, True, 12)

        display_frame = self.edit_display_pane(browser, _("Album Display"))
        box.pack_start(display_frame, True, True, 0)

        main_box = Gtk.VBox(spacing=12)
        close = Button(_("_Close"), Icons.WINDOW_CLOSE)
        close.connect('clicked', lambda *x: self.destroy())
        b = Gtk.HButtonBox()
        b.set_layout(Gtk.ButtonBoxStyle.END)
        b.pack_start(close, True, True, 0)

        main_box.pack_start(box, True, True, 0)
        self.use_header_bar()

        if not self.has_close_button():
            main_box.pack_start(b, False, True, 0)
        self.add(main_box)

        close.grab_focus()
        self.show_all()

class RenameFiles(Gtk.VBox):
    title = _("Rename Files")
    FILTERS = [SpacesToUnderscores, StripWindowsIncompat, StripDiacriticals,
               StripNonASCII, Lowercase]
    handler = RenameFilesPluginHandler()

    @classmethod
    def init_plugins(cls):
        PluginManager.instance.register_handler(cls.handler)

    def __init__(self, parent, library):
        super(RenameFiles, self).__init__(spacing=6)
        self.set_border_width(12)

        hbox = Gtk.HBox(spacing=6)
        cbes_defaults = NBP_EXAMPLES.split("\n")
        self.combo = ComboBoxEntrySave(NBP, cbes_defaults,
            title=_("Path Patterns"),
            edit_title=_(u"Edit saved patterns…"))
        self.combo.show_all()
        hbox.pack_start(self.combo, True, True, 0)
        self.preview = qltk.Button(_("_Preview"), Icons.VIEW_REFRESH)
        self.preview.show()
        hbox.pack_start(self.preview, False, True, 0)
        self.pack_start(hbox, False, True, 0)
        self.combo.get_child().connect('changed', self._changed)

        model = ObjectStore()
        self.view = Gtk.TreeView(model=model)
        self.view.show()

        sw = Gtk.ScrolledWindow()
        sw.set_shadow_type(Gtk.ShadowType.IN)
        sw.set_policy(Gtk.PolicyType.AUTOMATIC, Gtk.PolicyType.AUTOMATIC)
        sw.add(self.view)
        self.pack_start(sw, True, True, 0)

        self.pack_start(Gtk.VBox(), False, True, 0)

        filter_box = FilterPluginBox(self.handler, self.FILTERS)
        filter_box.connect("preview", self.__filter_preview)
        filter_box.connect("changed", self.__filter_changed)
        self.filter_box = filter_box
        self.pack_start(filter_box, False, True, 0)

        # Save button
        self.save = Button(_("_Save"), Icons.DOCUMENT_SAVE)
        self.save.show()
        bbox = Gtk.HButtonBox()
        bbox.set_layout(Gtk.ButtonBoxStyle.END)
        bbox.pack_start(self.save, True, True, 0)
        self.pack_start(bbox, False, True, 0)

        render = Gtk.CellRendererText()
        column = TreeViewColumn(_('File'), render)

        def cell_data_file(column, cell, model, iter_, data):
            entry = model.get_value(iter_)
            cell.set_property("text", entry.name)

        column.set_cell_data_func(render, cell_data_file)

        column.set_sizing(Gtk.TreeViewColumnSizing.AUTOSIZE)
        self.view.append_column(column)

        render = Gtk.CellRendererText()
        render.set_property('editable', True)
        column = TreeViewColumn(_('New Name'), render)

        def cell_data_new_name(column, cell, model, iter_, data):
            entry = model.get_value(iter_)
            cell.set_property("text", entry.new_name or u"")
        column.set_cell_data_func(render, cell_data_new_name)

        column.set_sizing(Gtk.TreeViewColumnSizing.AUTOSIZE)
        self.view.append_column(column)

        connect_obj(self.preview, 'clicked', self.__preview, None)

        connect_obj(parent, 'changed', self.__class__.__preview, self)
        connect_obj(self.save, 'clicked', self.__rename, library)

        render.connect('edited', self.__row_edited)

        for child in self.get_children():
            child.show()

    def __filter_preview(self, *args):
        Gtk.Button.clicked(self.preview)

    def __filter_changed(self, *args):
        self._changed(self.combo.get_child())

    def _changed(self, entry):
        self.save.set_sensitive(False)
        self.preview.set_sensitive(bool(entry.get_text()))

    def __row_edited(self, renderer, path, new):
        path = Gtk.TreePath.new_from_string(path)
        model = self.view.get_model()
#.........这里部分代码省略.........

    def __init__(self, parent, library):
        super(RenameFiles, self).__init__(spacing=6)
        self.set_border_width(12)

        hbox = Gtk.HBox(spacing=6)
        cbes_defaults = NBP_EXAMPLES.split("\n")
        self.combo = ComboBoxEntrySave(NBP, cbes_defaults,
            title=_("Path Patterns"),
            edit_title=_(u"Edit saved patterns…"))
        self.combo.show_all()
        hbox.pack_start(self.combo, True, True, 0)
        self.preview = qltk.Button(_("_Preview"), Icons.VIEW_REFRESH)
        self.preview.show()
        hbox.pack_start(self.preview, False, True, 0)
        self.pack_start(hbox, False, True, 0)
        self.combo.get_child().connect('changed', self._changed)

        model = ObjectStore()
        self.view = Gtk.TreeView(model=model)
        self.view.show()

        sw = Gtk.ScrolledWindow()
        sw.set_shadow_type(Gtk.ShadowType.IN)
        sw.set_policy(Gtk.PolicyType.AUTOMATIC, Gtk.PolicyType.AUTOMATIC)
        sw.add(self.view)
        self.pack_start(sw, True, True, 0)

        self.pack_start(Gtk.VBox(), False, True, 0)

        filter_box = FilterPluginBox(self.handler, self.FILTERS)
        filter_box.connect("preview", self.__filter_preview)
        filter_box.connect("changed", self.__filter_changed)
        self.filter_box = filter_box
        self.pack_start(filter_box, False, True, 0)

        # Save button
        self.save = Button(_("_Save"), Icons.DOCUMENT_SAVE)
        self.save.show()
        bbox = Gtk.HButtonBox()
        bbox.set_layout(Gtk.ButtonBoxStyle.END)
        bbox.pack_start(self.save, True, True, 0)
        self.pack_start(bbox, False, True, 0)

        render = Gtk.CellRendererText()
        column = TreeViewColumn(_('File'), render)

        def cell_data_file(column, cell, model, iter_, data):
            entry = model.get_value(iter_)
            cell.set_property("text", entry.name)

        column.set_cell_data_func(render, cell_data_file)

        column.set_sizing(Gtk.TreeViewColumnSizing.AUTOSIZE)
        self.view.append_column(column)

        render = Gtk.CellRendererText()
        render.set_property('editable', True)
        column = TreeViewColumn(_('New Name'), render)

        def cell_data_new_name(column, cell, model, iter_, data):
            entry = model.get_value(iter_)
            cell.set_property("text", entry.new_name or u"")
        column.set_cell_data_func(render, cell_data_new_name)

        column.set_sizing(Gtk.TreeViewColumnSizing.AUTOSIZE)
        self.view.append_column(column)

        connect_obj(self.preview, 'clicked', self.__preview, None)

        connect_obj(parent, 'changed', self.__class__.__preview, self)
        connect_obj(self.save, 'clicked', self.__rename, library)

        render.connect('edited', self.__row_edited)

        for child in self.get_children():
            child.show()