Esempio n. 1
0
    def create_thumbnails(self):
        """
        Crear los thumbnails para todas dimensiones
        """
        
        initial = log_time("create_thumbnails")
        sizes = sorted(self.sizes.items(), key=lambda x: x[1][0], reverse=True)
        last = None
        
        for name, dimension in sizes:
            self.create_thumbnail(name, last=last)
            last = name
            assert self.thumbnail_exists(name)

        log_time("end create_thumbnails", initial=initial)
Esempio n. 2
0
    def create_thumbnail(self, size, last=None):
        """
        Crea el thumbnail para el tamaño *size*.
        """
        
        initial = log_time("thumbnail: %s" % size, indent=4)

        # Abrimos la imagen
        try:
            name = self.image.name if last is None else \
                   self.thumbnail_name(last)
            data = self.image.storage.open(name, 'rb').read()
            img = Image.open(StringIO(data))
        except IOError, e:
            logging.error('IOError: %s ' % e)
            return
Esempio n. 3
0
        # Generamos el thumbnail
        thumb = method.generate(img, width, height)
        
        if thumb is not None:
            thumb_file = ContentFile(thumb.getvalue())
        else:
            thumb_file = ContentFile(data)
        
        # Escribimos el thumbnail en el disco
        name = self.thumbnail_name(size)
        if self.image.storage.exists(name):
            self.image.storage.delete(name)
            
        self.image.storage.save(name, thumb_file)
        log_time("end thumbnail", initial=initial, indent=4)
 
    def thumbnail_url(self, size):
        """
        Retorna el url del thumbnail de tamaño *size*
        """
        return self.image.storage.url(self.thumbnail_name(size))

    def thumbnail_basepath(self):
        """
        Retorna el path donde se almacena el thumbnail.
        """

        return getattr(settings, 'THUMBNAIL_STORAGE_DIR', self.basepath)

    def thumbnail_name(self, size):