U
    ڲg
#                     @  s   d dl mZ d dlZd dlmZmZmZ ddlmZm	Z	m
Z
mZ erPddlmZ G dd dZd	dd
ddZddddddZdddddZd'dddddZd(dddddZd)ddddd Zd*dddd!d"Zdd#d$d%d&ZdS )+    )annotationsN)IOTYPE_CHECKINGSequence   )GimpGradientFileGimpPaletteFile
ImageColorPaletteFile)Imagec                   @  s   e Zd ZdZd+dddddd	Zed
dddZejd
ddddZeddddZejdddddZd dddZ	ddddZ
ddddZeZd,dddd d!d"Zd-d#ddd$d%d&Zd'dd(d)d*ZdS ).ImagePalettea  
    Color palette for palette mapped images

    :param mode: The mode to use for the palette. See:
        :ref:`concept-modes`. Defaults to "RGB"
    :param palette: An optional palette. If given, it must be a bytearray,
        an array or a list of ints between 0-255. The list must consist of
        all channels for one color followed by the next color (e.g. RGBRGBRGB).
        Defaults to an empty palette.
    RGBNstrz(Sequence[int] | bytes | bytearray | NoneNone)modepalettereturnc                 C  s"   || _ d | _|pt | _d | _d S N)r   rawmode	bytearrayr   dirty)selfr   r    r   4/tmp/pip-unpacked-wheel-xela2va7/PIL/ImagePalette.py__init__)   s    zImagePalette.__init__!Sequence[int] | bytes | bytearray)r   c                 C  s   | j S r   )_paletter   r   r   r   r   3   s    zImagePalette.palette)r   r   c                 C  s   d | _ || _d S r   )_colorsr   )r   r   r   r   r   r   7   s    zdict[tuple[int, ...], int]c                 C  sh   | j d krbt| j}i | _ tdt| j|D ]4}t| j|||  }|| j krRq,|| | j |< q,| j S )Nr   )r   lenr   ranger   tuple)r   Zmode_lenicolorr   r   r   colors<   s    


zImagePalette.colors)r$   r   c                 C  s
   || _ d S r   )r   )r   r$   r   r   r   r$   H   s    c                 C  s<   t  }| j|_| j|_| jd k	r0| jd d  |_| j|_|S r   )r   r   r   r   r   )r   newr   r   r   copyL   s    
zImagePalette.copyz-tuple[str, Sequence[int] | bytes | bytearray]c                 C  s    | j r| j | jfS | j|  fS )z
        Get palette contents in format suitable for the low-level
        ``im.putpalette`` primitive.

        .. warning:: This method is experimental.
        )r   r   r   tobytesr   r   r   r   getdataW   s    zImagePalette.getdatabytesc                 C  s:   | j rd}t|t| jtr$| jS td| j}| S )zUConvert palette to bytes.

        .. warning:: This method is experimental.
        !palette contains raw palette dataB)r   
ValueError
isinstancer   r)   arrayr'   )r   msgZarrr   r   r   r'   b   s    zImagePalette.tobyteszImage.Image | NonezException | Noneint)imageer   c                 C  s   t | jtst| j| _t| jd }d}|rX|jd|jdf}||krX|d7 }qF|dkr|rttt	|
 D ] \}}|dkrx||krx|} qqx|dkrd}t|||S )	N   r   Z
backgroundZtransparencyr      r   z$cannot allocate more than 256 colors)r-   r   r   r   r   infogetreversedlist	enumerateZ	histogramr,   )r   r1   r2   indexZspecial_colorsr"   countr/   r   r   r   _new_color_indexr   s(    



zImagePalette._new_color_indexztuple[int, ...])r#   r1   r   c              
   C  sT  | j rd}t|t|tr:| jdkrZt|dkrx|d dkrLd}t||dd }n| jdkrxt|dkrx|d	7 }z| j| W S  tk
r6 } z| ||}t| j	t
st|| j|< |d t| jk r| j	d|d  t| | j	|d d d  | _	n|  j	t|7  _	d
| _| W Y S d}~X Y nX ndt| }t|dS )zgGiven an rgb tuple, allocate palette entry.

        .. warning:: This method is experimental.
        r*   r      r3      z/cannot add non-opaque RGBA color to RGB paletteNZRGBAr>   r   zunknown color specifier: )r   r,   r-   r!   r   r   r$   KeyErrorr<   r   r   AssertionErrorr   r)   r   repr)r   r#   r1   r/   r2   r:   r   r   r   getcolor   s>    	


zImagePalette.getcolorzstr | IO[str])fpr   c              
   C  s   | j rd}t|t|tr&t|d}|d |d| j d tdD ]|}||  t|t| j |d t| j D ]>}z|d| j	|   W q~ t
k
r   |d	 Y q~X q~|d qL|  d
S )zVSave palette to text file.

        .. warning:: This method is experimental.
        r*   wz
# Palette
z# Mode: 
r4   r    z 0N)r   r,   r-   r   openwriter   r    r   r   
IndexErrorclose)r   rD   r/   r"   jr   r   r   save   s     


&zImagePalette.save)r   N)NN)N)__name__
__module____qualname____doc__r   propertyr   setterr$   r&   r(   r'   tostringr<   rC   rM   r   r   r   r   r      s,     
    +r   r   )datar   c                 C  s   t  }| |_||_d|_|S )Nr   )r   r   r   r   )r   rU   r   r   r   r   raw   s
    rV   r0   floatz	list[int])blackwhiter   c                   s.   | dkr fddt dD S d}t|d S )Nr   c                   s   g | ]}t  | d  qS r?   r0   .0r"   rY   r   r   
<listcomp>   s     z#make_linear_lut.<locals>.<listcomp>r4   z"unavailable when black is non-zero)r    NotImplementedError)rX   rY   r/   r   r]   r   make_linear_lut   s    r`   )expr   c                   s    fddt dD S )Nc                   s$   g | ]}t |d    d  d qS )g     o@g      ?rZ   r[   ra   r   r   r^      s     z"make_gamma_lut.<locals>.<listcomp>r4   )r    rb   r   rb   r   make_gamma_lut   s    rc   r   r   )r   r   c                   s4   t tdt  }|  t  fdd|D S )Nr4   c                   s   g | ]}|t   qS r   r   r[   r   r   r   r^      s     znegative.<locals>.<listcomp>)r8   r    r   reverser   r   r   r   re   r   negative   s    rh   c                   s4   ddl m   fddtdt|  D }t| |S )Nr   randintc                   s   g | ]} d dqS )r   r>   r   )r\   _ri   r   r   r^      s     zrandom.<locals>.<listcomp>r4   )randomrj   r    r   r   rg   r   ri   r   rl      s    rl   #fff0c0)rY   r   c                   s0   dd t | D  td fddtdD S )Nc                 S  s   g | ]}t d |qS )r   )r`   )r\   Zbandr   r   r   r^      s     zsepia.<locals>.<listcomp>r   c                   s    g | ]} |d   |d   qS )r3   r   r[   Zbandsr   r   r^      s     i   )r	   Zgetrgbr   r    r]   r   rn   r   sepia   s    ro   c                   s,   t tdt  }t  fdd|D S )Nr4   c                   s   g | ]}|t   qS r   rd   r[   re   r   r   r^      s     zwedge.<locals>.<listcomp>)r8   r    r   r   rg   r   re   r   wedge   s    rp   ztuple[bytes, str])filenamer   c                 C  s~   t | dj}tjtjtjg}|D ]B}z$|d || }|rFW  qpW q  ttfk
r`   Y q X q d}t|W 5 Q R X |S )Nrbr   zcannot load palette)	rH   r   r   r
   seekZ
getpaletteSyntaxErrorr,   OSError)rq   rD   ZpaletteHandlersZpaletteHandlerZlutr/   r   r   r   load  s"    

rv   )r   )r   )rm   )r   )
__future__r   r.   typingr   r   r    r   r   r	   r
   r   r   rV   r`   rc   rh   rl   ro   rp   rv   r   r   r   r   <module>   s    6