[gnome-music/wip/jfelder/3-36-do-not-force-pango-version: 5/5] Do not depend on pango 1.44

[Jean Felder <jfelder src gnome org>]

commit acddcb9ac7c36d01d4ae6e08ed8bd90c29d4634a
Author: Jean Felder <jfelder src gnome org>
Date:   Wed Mar 18 14:12:58 2020 +0100

    Do not depend on pango 1.44
    
    Since commit 2aa733b7dba72ee5261ae45ecc390e09c3826503, the SongsView
    uses tabular number to display songs duration.
    
    This is only possible since pango 1.44 because PangoAttribute needs to
    be a boxed type (see
    https://gitlab.gnome.org/GNOME/pygobject/issues/312)
    
    By adding an explicit pango dependency, it prevents using Music
    without the proper pango dependency. A simple try/except allows to use
    Music with pango 1.42 and 1.44.
    
    Related: #374

 gnomemusic/views/songsview.py | 14 ++++++++++++--
 meson.build                   |  1 -
 2 files changed, 12 insertions(+), 3 deletions(-)
---
diff --git a/gnomemusic/views/songsview.py b/gnomemusic/views/songsview.py
index d76cd0e1..20b18ba6 100644
--- a/gnomemusic/views/songsview.py
+++ b/gnomemusic/views/songsview.py
@@ -26,6 +26,7 @@ from gettext import gettext as _
 from gi.repository import Gdk, Gtk, Pango
 
 from gnomemusic.coresong import CoreSong
+from gnomemusic.musiclogger import MusicLogger
 from gnomemusic.player import PlayerPlaylist
 from gnomemusic.utils import SongStateIcon
 from gnomemusic.views.baseview import BaseView
@@ -39,6 +40,8 @@ class SongsView(BaseView):
     and the album name.
     """
 
+    _log = MusicLogger()
+
     def __init__(self, application):
         """Initialize
 
@@ -117,8 +120,15 @@ class SongsView(BaseView):
         column_album.props.expand = True
         self._view.append_column(column_album)
 
-        attrs = Pango.AttrList()
-        attrs.insert(Pango.AttrFontFeatures.new("tnum=1"))
+        attrs = None
+        # The attributes syntax is only possible with Pango 1.44 and above
+        # https://gitlab.gnome.org/GNOME/pygobject/issues/312
+        try:
+            attrs = Pango.AttrList()
+            attrs.insert(Pango.AttrFontFeatures.new("tnum=1"))
+        except AttributeError as error:
+            self._log.warning("Error: {}".format(error))
+
         duration_renderer = Gtk.CellRendererText(xalign=1.0, attributes=attrs)
         column_duration = Gtk.TreeViewColumn(
             "Duration", duration_renderer, text=5)
diff --git a/meson.build b/meson.build
index 9bd65331..9882ef05 100644
--- a/meson.build
+++ b/meson.build
@@ -43,7 +43,6 @@ dependency('libdazzle-1.0', version: '>= 3.28.0')
 dependency('libmediaart-2.0', version: '>= 1.9.1')
 dependency('libsoup-2.4')
 dependency('tracker-sparql-2.0', version: '>= 2.3.0')
-dependency('pango', version: '>= 1.44.0')
 dependency('pygobject-3.0', version: '>= 3.29.1')
 dependency('py3cairo', version: '>= 1.14.0')
 dependency('grilo-0.3', version: '>= 0.3.12', fallback: ['grilo', 'libgrl_dep'])