o
    Ԧ/f                     @  s   d dl mZ d dlZd dlmZ ddlmZmZmZm	Z	 G dd dZ
dd	d
Zdd Zdd ZdddZdddZdddZdddZdd ZdS )    )annotationsN)Sequence   )GimpGradientFileGimpPaletteFile
ImageColorPaletteFilec                   @  s   e Zd ZdZdd d
dZedd Zejdd Zedd Zejdd Zdd Z	dd Z
dd ZeZd!ddZd"d#ddZ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modestrpaletteSequence[int] | NonereturnNonec                 C  s"   || _ d | _|p
t | _d | _d S N)r   rawmode	bytearrayr   dirty)selfr   r    r   0lib/python3.10/site-packages/PIL/ImagePalette.py__init__&   s   
zImagePalette.__init__c                 C  s   | j S r   )_paletter   r   r   r   r   ,   s   zImagePalette.palettec                 C  s   d | _ || _d S r   )_colorsr   )r   r   r   r   r   r   0   s   
c                 C  sh   | j d u r1t| j}i | _ tdt| j|D ]}t| j|||  }|| j v r)q|| | j |< q| j S )Nr   )r   lenr   ranger   tuple)r   Zmode_lenicolorr   r   r   colors5   s   


zImagePalette.colorsc                 C  s
   || _ d S r   )r   )r   r!   r   r   r   r!   A   s   
c                 C  s<   t  }| j|_| j|_| jd ur| jd d  |_| j|_|S r   )r	   r   r   r   r   )r   newr   r   r   copyE   s   
zImagePalette.copyc                 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   getdataP   s   zImagePalette.getdatac                 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   bytesarrayr$   )r   msgZarrr   r   r   r$   [   s   zImagePalette.tobytesc                 C  s   t | jtst| j| _t| jd }d}|r/|jd|jdf}||v r/|d7 }||v s'|dkr[|rPttt	|
 D ]\}}|dkrO||vrO|} nq?|dkr[d}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   imageeindexZspecial_colorsr   countr,   r   r   r   _new_color_indexk   s,   


zImagePalette._new_color_indexintc              
   C  s6  | j r	d}t|t|tr| jdkr,t|dkr+|d dkr%d}t||dd }n| jdkr;t|dkr;|d	7 }z| j| W S  ty } zB| ||}|| j|< |d t| j	k rw| j	d|d  t
| | j	|d d d  | _n	|  jt
|7  _d
| _|W  Y d}~S d}~ww dt| }t|)zgGiven an rgb tuple, allocate palette entry.

        .. warning:: This method is experimental.
        r&   r
      r-      z/cannot add non-opaque RGBA color to RGB paletteNZRGBAr;   r   zunknown color specifier: )r   r(   r)   r   r   r   r!   KeyErrorr8   r   r*   r   r   repr)r   r    r4   r,   r5   r6   r   r   r   getcolor   sB   



zImagePalette.getcolorc              
   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
y\   |d	 Y q?w |d q&|  d
S )zVSave palette to text file.

        .. warning:: This method is experimental.
        r&   wz
# Palette
z# Mode: 
r.   r    z 0N)r   r(   r)   r   openwriter   r   r   r   
IndexErrorclose)r   fpr,   r   jr   r   r   save   s"   


&zImagePalette.save)r
   N)r   r   r   r   r   r   )NNr   )r   r9   )__name__
__module____qualname____doc__r   propertyr   setterr!   r#   r%   r$   Ztostringr8   r?   rI   r   r   r   r   r	      s$    




&r	   r   c                 C  s   t  }| |_||_d|_|S )Nr   )r	   r   r   r   )r   datar   r   r   r   raw   s
   rQ   c                   s*   | dkr fddt dD S d}t|)Nr   c                   s   g | ]} | d  qS r<   r   .0r   whiter   r   
<listcomp>       z#make_linear_lut.<locals>.<listcomp>r.   z"unavailable when black is non-zero)r   NotImplementedError)ZblackrU   r,   r   rT   r   make_linear_lut   s   rY   c                   s    fddt dD S )Nc                   s$   g | ]}t |d    d  d qS )g     o@g      ?)r9   rR   Zexpr   r   rV      s   $ z"make_gamma_lut.<locals>.<listcomp>r.   )r   rZ   r   rZ   r   make_gamma_lut   s   r[   r
   c                   s4   t tdt  }|  t  fdd|D S )Nr.   c                      g | ]}|t   qS r   r   rR   r   r   r   rV      rW   znegative.<locals>.<listcomp>)r2   r   r   reverser	   r   r   r   r^   r   negative   s   ra   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   )rS   _rb   r   r   rV          zrandom.<locals>.<listcomp>r.   )randomrc   r   r   r	   r`   r   rb   r   rf      s   
rf   #fff0c0c                   s0   dd t | D  td fddtdD S )Nc                 S  s   g | ]}t d |qS )r   )rY   )rS   Zbandr   r   r   rV      re   zsepia.<locals>.<listcomp>r
   c                   s    g | ]} |d   |d   qS )r-   r   rR   Zbandsr   r   rV      s     i   )r   Zgetrgbr	   r   rT   r   rh   r   sepia   s   ri   c                   s,   t tdt  }t  fdd|D S )Nr.   c                   r\   r   r]   rR   r^   r   r   rV      rW   zwedge.<locals>.<listcomp>)r2   r   r   r	   r`   r   r^   r   wedge   s   rj   c                 C  s   t | d7}tjtjtjfD ]}z|d || }|r!W  nW q ttfy-   Y qw d}t|W d    |S 1 s?w   Y  |S )Nrbr   zcannot load palette)	rC   r   r   r   seekZ
getpaletteSyntaxErrorr(   OSError)filenamerG   ZpaletteHandlerZlutr,   r   r   r   load   s*   

rp   )r   r	   )r
   )rg   )Z
__future__r   r+   typingr    r   r   r   r   r	   rQ   rY   r[   ra   rf   ri   rj   rp   r   r   r   r   <module>   s    
+



