o
    tBh                     @   s   d Z ddlmZ ddlZddlmZ ddlZddlm	Z	m
Z
 ddlmZ ddlmZ ed	d
d Zdd ZG dd dZG dd deZdS )z7
Common functionality between the PDF and PS backends.
    )BytesION)subset   )font_managerft2font)AFM)RendererBase2   c                 C   s6   t | d}t|W  d    S 1 sw   Y  d S )Nrb)openr   )fnamefh r   z/var/www/html/riverr-enterprise-integrations-main/venv/lib/python3.10/site-packages/matplotlib/backends/_backend_pdf_ps.py_cached_get_afm_from_fname   s   $r   c                 C   s   t jddd}| jg d7  _| drd|_t | |%}t j|d}|j|d | | t }|j	|dd	 |W  d
   S 1 sFw   Y  d
S )aD  
    Subset a TTF font

    Reads the named fontfile and restricts the font to the characters.
    Returns a serialization of the subset font as file-like object.

    Parameters
    ----------
    symbol : str
        Path to the font file
    characters : str
        Continuous set of characters to include in subset
    T)glyph_namesrecommended_glyphs)FFTMPfEdBDFz.ttcr   )options)textF)reorderTablesN)
r   Optionsdrop_tablesendswithfont_number	load_font	Subsetterpopulater   save)fontfile
charactersr   font	subsetterr   r   r   r   get_glyphs_subset   s   

$r%   c                   @   s(   e Zd ZdZdd Zdd Zdd ZdS )	CharacterTrackerz
    Helper for font subsetting by the pdf and ps backends.

    Maintains a mapping of font paths to the set of character codepoints that
    are being used from that font.
    c                 C   s
   i | _ d S N)usedselfr   r   r   __init__?   s   
zCharacterTracker.__init__c                 C   s"   | j |jt tt| dS )z:Record that string *s* is being typeset using font *font*.N)r(   
setdefaultr   setupdatemapord)r*   r#   sr   r   r   trackB   s   "zCharacterTracker.trackc                 C   s   | j |jt | dS )zARecord that codepoint *glyph* is being typeset using font *font*.N)r(   r,   r   r-   add)r*   r#   glyphr   r   r   track_glyphF   s   zCharacterTracker.track_glyphN)__name__
__module____qualname____doc__r+   r2   r5   r   r   r   r   r&   7   s
    r&   c                       sT   e Zd Z fddZdd Zdd Zdd Zd	d
 Zdd Zdd Z	dd Z
  ZS )RendererPDFPSBasec                    s   t    || _|| _d S r'   )superr+   widthheight)r*   r<   r=   	__class__r   r   r+   P   s   

zRendererPDFPSBase.__init__c                 C      dS )NFr   r)   r   r   r   flipyU      zRendererPDFPSBase.flipyc                 C   r@   )NTr   r)   r   r   r   option_scale_imageY   rB   z$RendererPDFPSBase.option_scale_imagec                 C   s   t jd  S )Nzimage.composite_image)mplrcParamsr)   r   r   r   option_image_nocomposite]   s   z*RendererPDFPSBase.option_image_nocompositec                 C   s   | j d | jd fS )Ng      R@)r<   r=   r)   r   r   r   get_canvas_width_heightb   s   z)RendererPDFPSBase.get_canvas_width_heightc                 C   s,  |dkr|   }| }|j||| d\}}}|||fS |r?ddlm}	 | jjj|d|t| |	o4t	j
d d}
|
j|
j|
jfS t	j
| j rk| |}||\}}}}}| d }||9 }||9 }||9 }|||fS | |}|j|d	tjd
 | \}}| }d}||9 }||9 }||9 }|||fS )NTeX)rendererr   )
RendererPSH   z	ps.useafm)_force_standard_ps_fontsi  g        )flagsg      ?)get_texmanagerget_size_in_pointsget_text_width_height_descentmatplotlib.backends.backend_psrJ   
_text2pathmathtext_parserparse
isinstancerD   rE   r<   r=   depth_use_afm_rc_name_get_font_afmget_str_bbox_and_descent_get_font_ttfset_textr   LOAD_NO_HINTINGget_width_heightget_descent)r*   r1   propismath
texmanagerfontsizewhdrJ   rT   r#   lbscaler   r   r   rP   f   s@   





z/RendererPDFPSBase.get_text_width_height_descentc                 C   s   t j|d| jd}t|S )Nafm)fontext	directory)r   findfont_afm_font_dirr   )r*   r_   r   r   r   r   rX      s   zRendererPDFPSBase._get_font_afmc                 C   s0   t |}t |}|  || d |S )NrK   )r   rl   get_fontclearset_sizerO   )r*   r_   r   r#   r   r   r   rZ      s
   

zRendererPDFPSBase._get_font_ttf)r6   r7   r8   r+   rA   rC   rF   rG   rP   rX   rZ   __classcell__r   r   r>   r   r:   K   s    #r:   )r9   ior   	functools	fontToolsr   
matplotlibrD    r   r   ri   r   backend_basesr   	lru_cacher   r%   r&   r:   r   r   r   r   <module>   s    
!