a
    Sic                     @   s   d Z ddlmZmZmZmZ ddlmZ dZdd Z	dd	 Z
d
d Zdd Zdd Ze	e
eeegZG dd dZG dd deZdS )z
Stuff to translate curve segments to palette values (derived from
the corresponding code in GIMP, written by Federico Mena Quintero.
See the GIMP distribution for more information.)
    )logpisinsqrt   )o8g|=c                 C   sR   || kr"| t k rdS d| |  S n,||  }d|  } | t k r>dS dd| |   S d S )Ng              ?      ?)EPSILONmiddlepos r   P/var/www/html/django/DPS/env/lib/python3.9/site-packages/PIL/GimpGradientFile.pylinear   s    r   c                 C   s   |t dt t| t  S )Nr   )r   maxr
   r   r   r   r   curved.   s    r   c                 C   s$   t t d tt| |  d d S )Ng       @r	   )r   r   r   r   r   r   r   sine2   s    r   c                 C   s   t dt| |d d  S Nr	      r   r   r   r   r   r   sphere_increasing6   s    r   c                 C   s   dt dt| |d   S r   r   r   r   r   r   sphere_decreasing:   s    r   c                   @   s   e Zd ZdZdddZdS )GradientFileN   c                 C   sl  g }d}| j | \}}}}}}	t|D ]4}
|
|d  }||k r`|d7 }| j | \}}}}}}	q8|| }|tk r||	dd}n|	|| | || | }ttd|d |d  | |d   d }ttd|d |d  | |d   d }ttd|d |d  | |d   d }ttd|d |d  | |d   d }||| | |  q&d|dfS )	Nr   r   r      r          RGBA)gradientranger
   r   intappendjoin)selfentriespaletteixx0x1xmrgb0rgb1segmentixwscalergbar   r   r   
getpaletteF   s$    ,,,,zGradientFile.getpalette)r   )__name__
__module____qualname__r   r6   r   r   r   r   r   B   s   r   c                   @   s   e Zd ZdZdd ZdS )GimpGradientFilez(File handler for GIMP's gradient format.c              	   C   s   |  d d dkrtd|  }|dr:|   }t|}g }t|D ]}|   }dd |d d D }|d |d	  }}	|d
 }
|dd }|dd }tt|d  }t|d }|dkrtd|	||	|
|||f qN|| _
d S )N   s   GIMP Gradientznot a GIMP gradient files   Name: c                 S   s   g | ]}t |qS r   )float).0r/   r   r   r   
<listcomp>}   r   z-GimpGradientFile.__init__.<locals>.<listcomp>   r   r   r   r         zcannot handle HSV colour space)readlineSyntaxError
startswithstripr!   r    splitSEGMENTSOSErrorr"   r   )r$   fplinecountr   r.   sr0   r(   r)   r*   r+   r,   r-   Zcspacer   r   r   __init__k   s(    
zGimpGradientFile.__init__N)r7   r8   r9   __doc__rM   r   r   r   r   r:   h   s   r:   N)rN   mathr   r   r   r   _binaryr   r
   r   r   r   r   r   rG   r   r:   r   r   r   r   <module>   s   &