39 lines
1.6 KiB
Python
39 lines
1.6 KiB
Python
# Copyright 2022 (c) Anna Schumaker.
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"""A Gtk.ColumnView for displaying Tracks."""
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from gi.repository import GObject
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from gi.repository import Gtk
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from .. import db
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from .. import playlist
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class TrackView(Gtk.Frame):
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"""A Gtk.ColumnView that has been configured to show Tracks."""
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playlist = GObject.Property(type=playlist.playlist.Playlist)
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n_tracks = GObject.Property(type=int)
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runtime = GObject.Property(type=float)
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def __init__(self, sql: db.Connection, **kwargs):
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"""Initialize a TrackView."""
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super().__init__(**kwargs)
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self._filtermodel = Gtk.FilterListModel(filter=sql.tracks.get_filter(),
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incremental=True)
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self._selection = Gtk.MultiSelection(model=self._filtermodel)
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self._columnview = Gtk.ColumnView(hexpand=True, vexpand=True,
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show_row_separators=True,
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enable_rubberband=True,
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model=self._selection)
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self._scrollwin = Gtk.ScrolledWindow(child=self._columnview)
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self.bind_property("playlist", self._filtermodel, "model")
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self._selection.bind_property("n-items", self, "n-tracks")
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self._selection.connect("items-changed", self.__runtime_changed)
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self._columnview.add_css_class("emmental-track-list")
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self.set_child(self._scrollwin)
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def __runtime_changed(self, selection: Gtk.MultiSelection,
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position: int, removed: int, added: int) -> None:
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self.runtime = sum(t.length for t in self._selection)
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