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tracklist: Use the Gtk.ColumnView.scroll_to() function for scrolling 

Rather than trying to implement this myself through manually moving the
scrolled window. It's much easier to simply let Gtk do the work for us.

Signed-off-by: Anna Schumaker <Anna@NoWheyCreamery.com>
This commit is contained in:
Anna Schumaker 2023-08-30 13:40:22 -04:00
parent 2504f4b91d
commit 70d7f5fa70
1 changed files with 3 additions and 7 deletions
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10
emmental/tracklist/trackview.py
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@ -81,13 +81,9 @@ class TrackView(Gtk.ScrolledWindow):
def scroll_to_track(self, track: db.tracks.Track) -> None:
"""Scroll to the requested Track."""
# This is a workaround until the ColumnView has better scrolling
# support, which seems to be targeted for Gtk 4.10.
adjustment = self._scrollwin.get_vadjustment()
for (i, t) in enumerate(self._selection):
if t == track:
pos = max(i - 3, 0) * adjustment.get_upper()
adjustment.set_value(pos / self._selection.get_n_items())
for i in range(self._selection.props.n_items):
if self._selection[i] == track:
self._columnview.scroll_to(i, None, Gtk.ListScrollFlags.NONE)
@GObject.Property(type=Gio.ListModel)
def columns(self) -> Gio.ListModel: