def start_thumbnailer(self):
""" Start thumbnailing for the current ListStore
Thumbnailing is done in a separate thread
"""
self.stop_thumbnailer()
self.thumbnailer = GeneratorTask(self._create_thumbnails)
self.thumbnailer.start()
class FileManager:
COL_TITLE = 0
COL_PATH = 1
COL_PIXBUF = 2
COL_TYPE = 3
store = None
root = None
index = None
thumbnailer = None
def __init__(self,root):
self.store = gtk.ListStore(str, str, gtk.gdk.Pixbuf, str)
self.root = os.path.abspath(root)
self.index = Indexer(self.root)
def search(self,query):
""" Search the index for the given query
query needs to be something the Whoosh query parser can parse,
otherwise Whoosh exceptions are bubbled up
"""
self.stop_thumbnailer()
self.store.clear()
results = self.index.search(unicode(query))
for i, fields in enumerate(results):
title = fields['title']
if(title == ''):
title = os.path.basename(fields['path']);
self.store.append([
title,
fields['path'],
self.get_icon(gtk.STOCK_FILE),
'jpg'])
self.start_thumbnailer()
def browse(self,folder):
""" Browse the given folder
folder needs to exist and be relative to the library root,
otherwise a NoDirException is thrown
"""
self.stop_thumbnailer()
self.store.clear()
folder = folder.replace('..','')
full = os.path.join(self.root,folder)
full = os.path.abspath(full)
imgre = re.compile('\.jpe?g$',re.IGNORECASE)
if(not os.path.isdir(full)):
raise NoDirException("No such directory in library: "+folder)
# add upper dir
if(folder):
upper = os.path.dirname(folder);
self.store.append([
'..',
upper,
self.get_icon(gtk.STOCK_GO_UP),
'dir'])
for fl in os.listdir(full):
if fl[0] == '.':
continue; #skip hidden files
fn = os.path.join(full,fl)
rel = os.path.relpath(fn,self.root)
title = os.path.basename(fn)
if(os.path.isdir(fn)):
self.store.append([
title,
rel,
self.get_icon(gtk.STOCK_DIRECTORY),
'dir'])
elif(imgre.search(fn)):
self.store.append([
title,
rel,
self.get_icon(gtk.STOCK_FILE),
'jpg'])
self.start_thumbnailer()
def start_thumbnailer(self):
""" Start thumbnailing for the current ListStore
Thumbnailing is done in a separate thread
"""
self.stop_thumbnailer()
self.thumbnailer = GeneratorTask(self._create_thumbnails)
self.thumbnailer.start()
def stop_thumbnailer(self):
""" Stop any running thumbnailer
Always call this before the ListStore is cleared!
"""
if self.thumbnailer is not None:
self.thumbnailer.stop()
self.thumbnailer.wait()
self.thumbnailer = None
def _create_thumbnails(self):
""" The thumbnailing process
FIXME: reading addtional image info from exif might be
sensible here
"""
for row in self.store:
path = row[self.COL_PATH]
ftype = row[self.COL_TYPE]
fn = os.path.join(self.root,path)
if(ftype == 'jpg'):
buf = gtk.gdk.pixbuf_new_from_file_at_size(fn, 48, 48)
row[self.COL_PIXBUF] = buf
yield None
def get_itemat(self,pos):
""" Return the item at the given postion """
row = self.store[pos];
path = row[self.COL_PATH]
ftype = row[self.COL_TYPE]
fn = os.path.join(self.root,path)
return {'fn':fn, 'ft': ftype}
def get_nextimagepos(self,pos):
""" Get the position of the next image (not dir) after the given
position. If the given positon is None, the search sats at the
beginning of the store
FIXME there is probably a much more elegant way doing the
whole iteration stuff, but I can't figure it out
"""
if(pos == None):
pos = 0;
else:
pos = pos+1;
try:
rowiter = self.store.get_iter(pos);
while rowiter != None:
if(self.store.get_value(rowiter,self.COL_TYPE) == 'jpg'):
return self.store.get_path(rowiter)[0];
self.store.iter_next(rowiter);
except ValueError: # we're out of range
pass
return None
def get_previmagepos(self,pos):
""" Get the position of the next image (not dir) before the given
position.
FIXME there is probably a much more elegant way. And I have no
idea how to iterate backwards anyway
"""
while (pos >=0):
pos -= 1;
try:
rowiter = self.store.get_iter(pos);
if(self.store.get_value(rowiter,self.COL_TYPE) == 'jpg'):
return self.store.get_path(rowiter)[0];
except ValueError: # we're out of range
pass
return None
def get_icon(self, name):
""" Helper to load a stock icon """
theme = gtk.icon_theme_get_default()
return theme.load_icon(name, 48, 0)
def get_tagcloudstring(self):
tags = self.index.tagcloud()
cloud = ''
for tag in sorted(tags):
# style = 'size="%d" underline="none" foreground="blck"' % (5 + (tags[tag]*10))
# cloud += '<a href="tags:'+urllib.quote('"'+tag+'"')+'" underline="none" foreground="black">'+cgi.escape(tag)+'</a> ';
cloud += '<a href="%s"><span size="%d" underline="none" foreground="black">%s</span></a> ' % (
urllib.quote('"'+tag+'"'),
(10 + (tags[tag]*5))*1000,
cgi.escape(tag) )
return cloud
