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from PyQt4 import QtCore
import os
from misc import sec2min
class Song:
"""The Song class offers an abstraction of a song."""
_data = None
def __init__(self, data):
self._data = data
if 'id' in self._data:
self._data['id'] = int(self._data['id'])
if 'track' in self._data:
# make sure the track is a valid number!
t=self._data['track']
for i in xrange(len(t)):
if ord(t[i])<ord('0') or ord(t[i])>ord('9'):
try:
self._data['track']=int(t[0:i])
except TypeError:
self._data['track']=-1
break
self._data['track']=int(self._data['track'])
# ensure all string-values are utf-8 encoded
for tag in self._data.keys():
if isinstance(self._data[tag], str):
self._data[tag] = self._data[tag].decode('utf-8')
if 'time' in self._data:
self._data['time'] = int(self._data['time'])
self._data['timems'] = '%i:%i'%(self._data['time'] / 60, self._data['time'] % 60)
self._data['length'] = sec2min(self._data['time'])
def getID(self):
"""Get the ID."""
return self.getTag('id', -1)
def getTitle(self):
"""Get the title."""
return self.getTag('title', self._data['file'])
def getArtist(self):
"""Get the artist."""
return self.getTag('artist', self._data['file'])
def getTrack(self):
"""Get the track."""
return self.getTag('track')
def getAlbum(self):
"""Get the album."""
return self.getTag('album')
def getFilepath(self):
"""Get the filepath."""
return self._data['file']
def getTag(self, tag, default=''):
"""Get a tag. If it doesn't exist, return $default."""
if tag in self._data:
return self._data[tag]
if tag=='song':
return self.__str__()
return default
def expand_tags(self, str):
"""Expands tags in form $tag in str."""
ret = str
ret = ret.replace('$title', self.getTitle()) #to ensure that it is set to at least filename
for tag in self._data:
ret = ret.replace('$' + tag, unicode(self._data[tag]))
ret = ret.replace('$songdir', os.path.dirname(self.getFilepath()))
return ret
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