B
    eAdP  ã               @   s   G d d„ dƒZ ddd„ZdS )c               @   s0   e Zd ZdZdd„ Zdd„ Zdd„ Zdd	„ Zd
S )ÚIteratora-  
    This class implements an iterator object that can be used to loop
    over an image sequence.

    You can use the ``[]`` operator to access elements by index. This operator
    will raise an :py:exc:`IndexError` if you try to access a nonexistent
    frame.

    :param im: An image object.
    c             C   s0   t |dƒsd}t|ƒ‚|| _t| jddƒ| _d S )NÚseekzim must have seek methodZ
_min_frameé    )ÚhasattrÚAttributeErrorÚimÚgetattrÚposition)Úselfr   Úmsg© r   úC/var/www/html/venv/lib/python3.7/site-packages/PIL/ImageSequence.pyÚ__init__   s
    
zIterator.__init__c          
   C   s@   y| j  |¡ | j S  tk
r: } z
t|‚W d d }~X Y nX d S )N)r   r   ÚEOFErrorÚ
IndexError)r	   ZixÚer   r   r   Ú__getitem__&   s
    zIterator.__getitem__c             C   s   | S )Nr   )r	   r   r   r   Ú__iter__-   s    zIterator.__iter__c          
   C   sP   y"| j  | j¡ |  jd7  _| j S  tk
rJ } z
t|‚W d d }~X Y nX d S )Né   )r   r   r   r   ÚStopIteration)r	   r   r   r   r   Ú__next__0   s    zIterator.__next__N)Ú__name__Ú
__module__Ú__qualname__Ú__doc__r   r   r   r   r   r   r   r   r      s
   
r   Nc                sd   t | tƒs| g} g }x4| D ],}| ¡ }|dd„ t|ƒD ƒ7 }| |¡ qW ˆ r`‡ fdd„|D ƒS |S )a  
    Applies a given function to all frames in an image or a list of images.
    The frames are returned as a list of separate images.

    :param im: An image, or a list of images.
    :param func: The function to apply to all of the image frames.
    :returns: A list of images.
    c             S   s   g | ]}|  ¡ ‘qS r   )Úcopy)Ú.0Zim_framer   r   r   ú
<listcomp>I   s    zall_frames.<locals>.<listcomp>c                s   g | ]}ˆ |ƒ‘qS r   r   )r   r   )Úfuncr   r   r   L   s    )Ú
isinstanceÚlistÚtellr   r   )r   r   ZimsZ
imSequenceÚcurrentr   )r   r   Ú
all_frames9   s    	

r"   )N)r   r"   r   r   r   r   Ú<module>   s   &