images module Upload, resize and create image thumbnails

# 

# -*- coding: utf-8 -*-



from gluon import current



class RESIZE(object):

    def __init__(self, nx=260, ny=260, error_message=' image resize'):

        (self.nx, self.ny, self.error_message) = (nx, ny, error_message)



    def __call__(self, value):

        if isinstance(value, str) and len(value) == 0:

            return (value, None)

        from PIL import Image

        import cStringIO

        try:

            img = Image.open(value.file)

            img.thumbnail((self.nx, self.ny), Image.ANTIALIAS)

            s = cStringIO.StringIO()

            img.save(s, 'JPEG', quality=100)

            s.seek(0)

            value.file = s

        except:

            return (value, self.error_message)

        else:

            return (value, None)



def THUMB(image, nx=260, ny=260, gae=False, name='thumb'):

    if image:

        if not gae:

            request = current.request

            from PIL import Image

            import os

            #img = Image.open(os.path.join(request.folder,'static','images' + '/' + image[11:13] + '/'  + image))

            img = Image.open(os.path.join(request.folder , 'static/images/albums/image.file/', image[11:13] +'/'+  image))

            img.thumbnail((nx, ny), Image.ANTIALIAS)

            root, ext = os.path.splitext(image)

            thumb = '%s_%s%s' % (root, name, ext)

            img.save(request.folder + 'static/images/albums/image.file/', thumb[11:13] +'/' +   thumb)

            return thumb

        else:

            return image