mcg/src/playlistpanel.py
coderkun fac7a85566 Use the build system “meson” (close #32)
Replace the build system “setuptools” with “meson”.
2022-09-11 12:31:13 +02:00

354 lines
11 KiB
Python

#!/usr/bin/env python3
import gi
gi.require_version('Gtk', '3.0')
import logging
import math
import threading
from gi.repository import Gtk, GObject, GdkPixbuf
from mcg import client
from mcg.albumheaderbar import AlbumHeaderbar
from mcg.utils import Utils
@Gtk.Template(resource_path='/xyz/suruatoel/mcg/ui/playlist-toolbar.ui')
class PlaylistToolbar(Gtk.ButtonBox):
__gtype_name__ = 'McgPlaylistToolbar'
__gsignals__ = {
'select': (GObject.SIGNAL_RUN_FIRST, None, (bool,)),
'clear-playlist': (GObject.SIGNAL_RUN_FIRST, None, ())
}
# Widgets
playlist_clear_button = Gtk.Template.Child()
select_button = Gtk.Template.Child()
def __init__(self):
super().__init__()
@Gtk.Template.Callback()
def on_select_toggled(self, widget):
self.emit('select', widget.get_active())
@Gtk.Template.Callback()
def on_clear_clicked(self, widget):
if widget is self.playlist_clear_button:
self.emit('clear-playlist')
def exit_selection(self):
self.select_button.set_active(False)
@Gtk.Template(resource_path='/xyz/suruatoel/mcg/ui/playlist-panel.ui')
class PlaylistPanel(Gtk.Stack):
__gtype_name__ = 'McgPlaylistPanel'
__gsignals__ = {
'open-standalone': (GObject.SIGNAL_RUN_FIRST, None, ()),
'close-standalone': (GObject.SIGNAL_RUN_FIRST, None, ()),
'clear-playlist': (GObject.SIGNAL_RUN_FIRST, None, ()),
'remove-album': (GObject.SIGNAL_RUN_FIRST, None, (GObject.TYPE_PYOBJECT,)),
'remove-multiple-albums': (GObject.SIGNAL_RUN_FIRST, None, (GObject.TYPE_PYOBJECT,)),
'play': (GObject.SIGNAL_RUN_FIRST, None, (GObject.TYPE_PYOBJECT,)),
'albumart': (GObject.SIGNAL_RUN_FIRST, None, (str,))
}
# Widgets
panel_standalone = Gtk.Template.Child()
actionbar_revealer = Gtk.Template.Child()
# Playlist Grid
playlist_grid = Gtk.Template.Child()
# Action bar (normal)
actionbar = Gtk.Template.Child()
actionbar_standalone = Gtk.Template.Child()
# Standalone Image
standalone_stack = Gtk.Template.Child()
standalone_spinner = Gtk.Template.Child()
standalone_scroll = Gtk.Template.Child()
standalone_image = Gtk.Template.Child()
def __init__(self, client):
GObject.GObject.__init__(self)
self._client = client
self._host = None
self._item_size = 150
self._playlist = None
self._playlist_albums = None
self._playlist_lock = threading.Lock()
self._playlist_stop = threading.Event()
self._icon_theme = Gtk.IconTheme.get_default()
self._standalone_pixbuf = None
self._selected_albums = []
self._is_selected = False
# Widgets
self._toolbar = PlaylistToolbar()
self._toolbar.connect('select', self.on_toolbar_select)
self._toolbar.connect('clear-playlist', self.on_toolbar_clear)
# Header bar
self._headerbar_standalone = AlbumHeaderbar()
self._headerbar_standalone.connect('close', self.on_headerbar_close_clicked)
# Playlist Grid: Model
self._playlist_grid_model = Gtk.ListStore(GdkPixbuf.Pixbuf, str, str)
# Playlist Grid
self.playlist_grid.set_model(self._playlist_grid_model)
self.playlist_grid.set_pixbuf_column(0)
self.playlist_grid.set_text_column(-1)
self.playlist_grid.set_tooltip_column(1)
def get_headerbar_standalone(self):
return self._headerbar_standalone
def get_toolbar(self):
return self._toolbar
def set_selected(self, selected):
self._is_selected = selected
def on_toolbar_select(self, widget, active):
if active:
self.actionbar_revealer.set_reveal_child(True)
self.playlist_grid.set_selection_mode(Gtk.SelectionMode.MULTIPLE)
self.playlist_grid.get_style_context().add_class(Utils.CSS_SELECTION)
else:
self.actionbar_revealer.set_reveal_child(False)
self.playlist_grid.set_selection_mode(Gtk.SelectionMode.SINGLE)
self.playlist_grid.get_style_context().remove_class(Utils.CSS_SELECTION)
def on_toolbar_clear(self, widget):
self.emit('clear-playlist')
@Gtk.Template.Callback()
def on_playlist_grid_clicked(self, widget, path):
# Get selected album
iter = self._playlist_grid_model.get_iter(path)
hash = self._playlist_grid_model.get_value(iter, 2)
album = self._playlist_albums[hash]
self._selected_albums = [album]
self.emit('albumart', hash)
# Show standalone album
if widget.get_selection_mode() == Gtk.SelectionMode.SINGLE:
# Set labels
self._headerbar_standalone.set_album(album)
# Show panel
self._open_standalone()
# Set cover loading indicator
self.standalone_stack.set_visible_child(self.standalone_spinner)
self.standalone_spinner.start()
@Gtk.Template.Callback()
def on_playlist_grid_selection_changed(self, widget):
self._selected_albums = []
for path in widget.get_selected_items():
iter = self._playlist_grid_model.get_iter(path)
hash = self._playlist_grid_model.get_value(iter, 2)
self._selected_albums.append(self._playlist_albums[hash])
@Gtk.Template.Callback()
def on_selection_cancel_clicked(self, widget):
self._toolbar.exit_selection()
@Gtk.Template.Callback()
def on_selection_remove_clicked(self, widget):
self.emit('remove-multiple-albums', self._selected_albums)
self._toolbar.exit_selection()
@Gtk.Template.Callback()
def on_standalone_scroll_size_allocate(self, widget, allocation):
self._resize_standalone_image()
def on_headerbar_close_clicked(self, widget):
self._close_standalone()
@Gtk.Template.Callback()
def on_standalone_remove_clicked(self, widget):
self.emit('remove-album', self._selected_albums[0])
self._close_standalone()
@Gtk.Template.Callback()
def on_standalone_play_clicked(self, widget):
self.emit('play', self._selected_albums[0])
self._close_standalone()
def set_item_size(self, item_size):
if self._item_size != item_size:
self._item_size = item_size
self._redraw()
def get_item_size(self):
return self._item_size
def set_playlist(self, host, playlist):
self._host = host
self._playlist_stop.set()
threading.Thread(target=self._set_playlist, args=(host, playlist, self._item_size,)).start()
def set_albumart(self, album, data):
if album in self._selected_albums:
if data:
# Load image and draw it
try:
self._standalone_pixbuf = Utils.load_pixbuf(data)
except Exception as e:
self._logger.exception("Failed to set albumart")
self._cover_pixbuf = self._get_default_image()
else:
self._cover_pixbuf = self._get_default_image()
# Show image
GObject.idle_add(self._show_image)
def stop_threads(self):
self._playlist_stop.set()
def _set_playlist(self, host, playlist, size):
if not self._is_selected and self._playlist != playlist:
GObject.idle_add(
self.get_parent().child_set_property,
self,
'needs-attention',
True
)
self._playlist_lock.acquire()
self._playlist_stop.clear()
self._playlist = playlist
self._playlist_albums = {}
for album in playlist:
self._playlist_albums[album.get_id()] = album
self.playlist_grid.set_model(None)
self.playlist_grid.freeze_child_notify()
self._playlist_grid_model.clear()
GObject.idle_add(self.playlist_grid.set_item_padding, size / 100)
cache = client.MCGCache(host, size)
for album in playlist:
pixbuf = None
# Load albumart thumbnail
try:
pixbuf = Utils.load_thumbnail(cache, self._client, album, size)
except client.CommandException:
# Exception is handled by client
pass
except Exception:
self._logger.exception("Failed to load albumart")
if pixbuf is None:
pixbuf = self._icon_theme.load_icon(
Utils.STOCK_ICON_DEFAULT,
self._item_size,
Gtk.IconLookupFlags.FORCE_SVG & Gtk.IconLookupFlags.FORCE_SIZE
)
if pixbuf is not None:
self._playlist_grid_model.append([
pixbuf,
GObject.markup_escape_text("\n".join([
album.get_title(),
', '.join(album.get_dates()),
Utils.create_artists_label(album),
Utils.create_length_label(album)
])),
album.get_id()
])
if self._playlist_stop.is_set():
self._playlist_lock.release()
return
self.playlist_grid.set_model(self._playlist_grid_model)
self.playlist_grid.thaw_child_notify()
# TODO why set_columns()?
#self.playlist_grid.set_columns(len(playlist))
self._playlist_lock.release()
def _show_image(self):
self._resize_standalone_image()
self.standalone_stack.set_visible_child(self.standalone_scroll)
self.standalone_spinner.stop()
def _redraw(self):
if self._playlist is not None:
self.set_playlist(self._host, self._playlist)
def _open_standalone(self):
self.set_visible_child(self.panel_standalone)
self.emit('open-standalone')
def _close_standalone(self):
self.set_visible_child(self.get_children()[0])
self.emit('close-standalone')
def _resize_standalone_image(self):
"""Diese Methode skaliert das geladene Bild aus dem Pixelpuffer
auf die Größe des Fensters unter Beibehalt der Seitenverhältnisse
"""
pixbuf = self._standalone_pixbuf
size = self.standalone_scroll.get_allocation()
# Check pixelbuffer
if pixbuf is None:
return
# Skalierungswert für Breite und Höhe ermitteln
ratioW = float(size.width) / float(pixbuf.get_width())
ratioH = float(size.height) / float(pixbuf.get_height())
# Kleineren beider Skalierungswerte nehmen, nicht Hochskalieren
ratio = min(ratioW, ratioH)
ratio = min(ratio, 1)
# Neue Breite und Höhe berechnen
width = int(math.floor(pixbuf.get_width()*ratio))
height = int(math.floor(pixbuf.get_height()*ratio))
if width <= 0 or height <= 0:
return
# Pixelpuffer auf Oberfläche zeichnen
self.standalone_image.set_allocation(self.standalone_scroll.get_allocation())
self.standalone_image.set_from_pixbuf(pixbuf.scale_simple(width, height, GdkPixbuf.InterpType.HYPER))
self.standalone_image.show()
def _get_default_image(self):
return self._icon_theme.load_icon(
Utils.STOCK_ICON_DEFAULT,
512,
Gtk.IconLookupFlags.FORCE_SVG & Gtk.IconLookupFlags.FORCE_SIZE
)