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#
# Copyright (C) 2009 Anton Khirnov <wyskas@gmail.com>
#
# Nephilim is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Nephilim is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Nephilim. If not, see <http://www.gnu.org/licenses/>.
#
from PyQt5 import QtGui, QtWidgets, QtCore
from PyQt5.QtCore import pyqtSlot as Slot
from ..plugin import Plugin
from ..common import MIMETYPES, SongsMimeData
class Library(Plugin):
# public, const
info = 'Display MPD database as a tree.'
# public, read-only
o = None
# private
DEFAULTS = {'foldings' : ['albumartist/album'], 'cur_folding' : 0}
def _load(self):
self.o = LibraryWidget(self)
def _unload(self):
self.o = None
def _get_dock_widget(self):
return self._create_dock(self.o)
def fill_library(self):
if not self.o:
return
self.o.fill_library()
class LibraryWidget(QtWidgets.QWidget):
library_view = None
library_model = None
search_txt = None
settings = None
plugin = None
logger = None
filtered_items = None
filter = None
def __init__(self, plugin):
QtWidgets.QWidget.__init__(self)
self.plugin = plugin
self.logger = plugin.logger
self.settings = QtCore.QSettings()
self.filter = ''
self.filtered_items = []
self.settings.beginGroup(self.plugin.name)
# folding widgets
self.foldings = LibraryFolding(self.plugin, self)
self.foldings.activated.connect(self.fill_library)
del_folding = QtWidgets.QPushButton(QtGui.QIcon(':icons/delete.png'), '')
del_folding.setToolTip('Delete current folding pattern.')
del_folding.clicked.connect(lambda :self.foldings.removeItem(self.foldings.currentIndex()))
folding_layout = QtWidgets.QHBoxLayout()
folding_layout.addWidget(self.foldings, stretch = 1)
folding_layout.addWidget(del_folding)
self.search_txt = QtWidgets.QLineEdit()
self.search_txt.setToolTip('Filter library')
self.search_txt.textChanged.connect(self.filter_library)
self.search_txt.returnPressed.connect(self.add_filtered)
#construct the library
self.library_model = LibraryModel()
self.fill_library()
self.library_view = LibraryView()
self.library_view.setModel(self.library_model)
self.library_view.activated.connect(lambda : self.add_indices(self.library_view.selectedIndexes()))
self.setLayout(QtWidgets.QVBoxLayout())
self.layout().setSpacing(2)
self.layout().setContentsMargins(0, 0, 0, 0)
self.layout().addLayout(folding_layout)
self.layout().addWidget(self.search_txt)
self.layout().addWidget(self.library_view)
self.plugin.mpclient.db_updated.connect(self.fill_library)
def fill_library(self):
self.logger.info('Refreshing library.')
self.library_model.fill(self.plugin.mpclient.db.values(), self.foldings.currentText().split('/'))
@Slot(str)
def filter_library(self, text):
"""Hide all items that don't contain text."""
to_hide = []
to_show = []
filtered_items = []
text = text.lower()
if not text: # show all items
to_show = self.library_model.findItems('*', QtCore.Qt.MatchWildcard|QtCore.Qt.MatchRecursive)
elif self.filter and self.filter in text:
for item in self.filtered_items:
if text in item.text().lower():
filtered_items.append(item)
while item:
to_show.append(item)
item = item.parent()
else:
while item:
to_hide.append(item)
item = item.parent()
else:
for item in self.library_model.findItems('*', QtCore.Qt.MatchWildcard|QtCore.Qt.MatchRecursive):
if text in item.text().lower():
filtered_items.append(item)
while item:
to_show.append(item)
item = item.parent()
else:
while item:
to_hide.append(item)
item = item.parent()
for item in to_hide:
self.library_view.setRowHidden(item.row(), self.library_model.indexFromItem(item.parent()), True)
for item in to_show:
self.library_view.setRowHidden(item.row(), self.library_model.indexFromItem(item.parent()), False)
if len(filtered_items) < 5:
for item in filtered_items:
while item:
item = item.parent()
self.library_view.setExpanded(self.library_model.indexFromItem(item), True)
self.filtered_items = filtered_items
self.filter = text
@Slot()
def add_filtered(self):
self.add_indices([self.library_model.indexFromItem(index) for index in self.filtered_items])
self.search_txt.clear()
def add_indices(self, indices):
paths = []
for song in self.library_model.walk_tree(indices):
paths.append(song)
self.plugin.mpclient.add(paths)
class LibrarySongItem(QtGui.QStandardItem):
# public
"Song path"
path = None
class LibraryModel(QtGui.QStandardItemModel):
def fill(self, songs, folding):
self.clear()
tree = [{},self.invisibleRootItem()]
for song in songs:
cur_item = tree
for part in folding:
try:
tag = song[part]
except KeyError:
tag = 'Unknown'
if tag in cur_item[0]:
cur_item = cur_item[0][tag]
else:
it = QtGui.QStandardItem(tag)
it.setFlags(QtCore.Qt.ItemIsSelectable|QtCore.Qt.ItemIsEnabled)
cur_item[1].appendRow(it)
cur_item[0][tag] = [{}, it]
cur_item = cur_item[0][tag]
it = LibrarySongItem('%s%02d %s'%(song['disc'] + '/' if 'disc' in song else '',
song['tracknum'] if 'tracknum' in song else 0,
song['?title']))
it.path = song['?file']
it.setFlags(QtCore.Qt.ItemIsSelectable|QtCore.Qt.ItemIsEnabled)
cur_item[1].appendRow(it)
self.sort(0, QtCore.Qt.AscendingOrder)
def walk_tree(self, indices):
"""Returns a generator over all songs that are children of indices."""
for index in indices:
if self.hasChildren(index):
for song in self.walk_tree([self.index(i, 0, index) for i in range(self.rowCount(index))]):
yield song
else:
yield self.itemFromIndex(index).path
def flags(self, index):
return (QtCore.Qt.ItemIsDragEnabled if index.isValid() else 0) | QtGui.QStandardItemModel.flags(self, index)
def mimeTypes(self):
return MIMETYPES['songs']
def mimeData(self, indices):
data = SongsMimeData()
songs = []
for song in self.walk_tree(indices):
songs.append(song)
data.set_songs(songs)
return data
class LibraryView(QtWidgets.QTreeView):
def __init__(self):
QtWidgets.QTreeView.__init__(self)
self.setAlternatingRowColors(True)
self.setSelectionMode(QtWidgets.QAbstractItemView.ExtendedSelection)
self.setUniformRowHeights(True)
self.setHeaderHidden(True)
self.setDragEnabled(True)
class LibraryFolding(QtWidgets.QComboBox):
#### PRIVATE ####
_plugin = None
_settings = None
#### PUBLIC ####
def __init__(self, plugin, parent):
QtWidgets.QComboBox.__init__(self)
self.setEditable(True)
self.setToolTip('Current folding pattern.')
self._plugin = plugin
# fill with stored folding patterns, ensure at least an empty string
self._settings = QtCore.QSettings()
self._settings.beginGroup(self._plugin.name)
for item in self._settings.value('foldings'):
self.addItem(item)
if not self.count():
self.addItem('')
self.setCurrentIndex(int(self._settings.value('cur_folding')))
# connect signals to slots
self.currentIndexChanged.connect( self._update_foldings)
self.model().rowsInserted.connect(self._update_foldings)
self.model().rowsRemoved.connect( self._update_foldings)
self.model().rowsMoved.connect( self._update_foldings)
#### PRIVATE ####
@Slot()
def _update_foldings(self):
foldings = []
for i in range(self.count()):
foldings.append(self.itemText(i))
self._settings.setValue('foldings', foldings)
self._settings.setValue('cur_folding', self.currentIndex())
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