Update of /cvsroot/freevo/freevo/src/util
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv4306
Modified Files:
thumbnail.py
Log Message:
create image thumbnails on-the-fly
Index: thumbnail.py
===================================================================
RCS file: /cvsroot/freevo/freevo/src/util/thumbnail.py,v
retrieving revision 1.8
retrieving revision 1.9
diff -C2 -d -r1.8 -r1.9
*** thumbnail.py 6 Feb 2005 18:22:03 -0000 1.8
--- thumbnail.py 10 Apr 2005 18:05:22 -0000 1.9
***************
*** 39,45 ****
import os
import logging
!
! # the logging object
! log = logging.getLogger('util')
# mevas for imlib2 support
--- 39,43 ----
import os
import logging
! import stat
# mevas for imlib2 support
***************
*** 48,88 ****
# freevo utils
import fileops
- import cache
import vfs
! def read_raw_thumbnail(filename):
! """
! Read a Freevo 'raw' thumbnail. The thumbnail itself is raw data, no
! compression is used. This functions uses a lot of disc space, but is
! very fast.
! """
! f = open(filename)
! header = f.read(10)
! if not header[:3] == 'FRI':
! # raw data is a pickled imaged
! return cache.load(filename)
! data = f.read(), (ord(header[3]), ord(header[4])), header[5:].strip(' ')
! f.close()
! return mevas.imagelib.new(data[1], data[0], data[2])
!
!
! def create_raw_thumbnail(source, thumbnail):
! """
! Create a 'raw' thumbnail for the given source and store it to thumbnail.
! Return the image object.
! """
! image = mevas.imagelib.open(source)
! if image.width > 255 or image.height > 255:
! image.scale_preserve_aspect((255,255))
! f = open(thumbnail, 'w')
! if image.has_alpha:
! mode = 'RGBA'
! else:
! mode = 'RGB'
! f.write('FRI%s%s%5s' % (chr(image.width), chr(image.height), mode))
! f.write(str(image.get_raw_data(mode)))
! f.close()
! return image
--- 46,57 ----
# freevo utils
import fileops
import vfs
+ from callback import *
+ # the logging object
+ log = logging.getLogger('util')
! # list for thumbnails to create in bg
! _create_jobs = []
***************
*** 91,147 ****
Returns the filename of the thumbnail if it exists. None if not.
"""
! if filename.endswith('.raw') or filename.endswith('.thumb.jpg'):
return filename
! thumb = vfs.getoverlay(filename + '.raw')
! try:
! if fileops.mtime(thumb) > fileops.mtime(filename):
! return thumb
! os.unlink(thumb)
! except (IOError, OSError):
! pass
! if not filename.endswith('.jpg'):
return None
! thumb = vfs.getoverlay(filename[:-3] + 'thumb.jpg')
! try:
! if fileops.mtime(thumb) > fileops.mtime(filename):
! return thumb
! os.unlink(thumb)
! except (IOError, OSError):
! pass
return None
! def create(filename):
"""
Create a thumbnail for the given filename in the vfs.
"""
! if not os.path.isdir(os.path.dirname(vfs.getoverlay(filename))):
os.makedirs(os.path.dirname(vfs.getoverlay(filename)))
! if filename.endswith('.jpg'):
! thumb = vfs.getoverlay(filename[:-3] + 'thumb.jpg')
! # epeg support for fast jpg thumbnailing
! return mevas.imagelib.thumbnail(filename, thumb, (255, 255))
!
! thumb = vfs.getoverlay(filename + '.raw')
try:
! return create_raw_thumbnail(filename, thumb)
! except Exception, e:
! log.error('thumbnail.create error:\n%s' % e)
! fileops.touch(thumb)
return None
! def load(filename):
"""
Return the thumbnail. Create one, if it doesn't exists.
"""
! thumb = get_name(filename)
if thumb:
- if thumb.endswith('raw'):
- try:
- return read_raw_thumbnail(thumb)
- except:
- return None
return mevas.imagelib.open(thumb)
! return create(filename)
!
--- 60,113 ----
Returns the filename of the thumbnail if it exists. None if not.
"""
! s = os.stat(filename)
! if s[stat.ST_SIZE] < 30000:
return filename
! base = filename[:filename.rfind('.')]
! if base.endswith('.thumb'):
! return filename
! thumb = vfs.getoverlay(base + '.thumb' + filename[filename.rfind('.'):])
! if not os.path.isfile(thumb):
return None
!
! if os.stat(thumb)[stat.ST_MTIME] > s[stat.ST_MTIME]:
! return thumb
! os.unlink(thumb)
return None
! def create(filename, check_overlay=True):
"""
Create a thumbnail for the given filename in the vfs.
"""
! if check_overlay and \
! not os.path.isdir(os.path.dirname(vfs.getoverlay(filename))):
os.makedirs(os.path.dirname(vfs.getoverlay(filename)))
! base = filename[:filename.rfind('.')]
! thumb = vfs.getoverlay(base + '.thumb' + filename[filename.rfind('.'):])
! if filename in _create_jobs:
! _create_jobs.remove(filename)
! if _create_jobs:
! call_later(10, create, _create_jobs[0])
try:
! return mevas.imagelib.thumbnail(filename, thumb, (255, 255))
! except:
return None
! def load(filename, bg=False):
"""
Return the thumbnail. Create one, if it doesn't exists.
"""
! try:
! thumb = get_name(filename)
! except OSError:
! return None
if thumb:
return mevas.imagelib.open(thumb)
! if not bg:
! return create(filename)
! if filename in _create_jobs:
! return
! _create_jobs.append(filename)
! call_later(10, create, _create_jobs[0])
! return None
-------------------------------------------------------
SF email is sponsored by - The IT Product Guide
Read honest & candid reviews on hundreds of IT Products from real users.
Discover which products truly live up to the hype. Start reading now.
http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click
_______________________________________________
Freevo-cvslog mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/freevo-cvslog
