B
    àz÷b«.  ã               @   s$  d dl Z d dlZd dlZd dlZd dlZd dlZddlmZmZ ddl	m
Z e d¡Ze d¡ZdZej d¡ržd dlZx$dD ]Ze e¡dk	r~eZP q~W d	Zd
d„ Zddd„ZG dd„ dƒZdd„ ZG dd„ dejƒZddd„Ze ejee¡ e eje¡ e ejddg¡ e ejd¡ dS )é    Né   )ÚImageÚ	ImageFile)Úi32lez^%%([^:]*):[ \t]*(.*)[ \t]*$z^%[%!\w]([^:]*)[ \t]*$Úwin)Zgswin32cZgswin64cÚgsFc               C   sF   t rdS tj d¡sBytjddgtjd dS  tk
r@   Y nX dS )NTr   r   z	--version)ÚstdoutF)Úgs_windows_binaryÚsysÚplatformÚ
startswithÚ
subprocessÚ
check_callZDEVNULLÚOSError© r   r   ú1lib/python3.7/site-packages/PIL/EpsImagePlugin.pyÚhas_ghostscript3   s    r   c             C   sZ  | d \}} }}|\}}	t |ƒp"d}|d | |d | f}d|d  |	d |	d   d|d  |	d |	d   f}
t ¡ \}}t |¡ d}t|dƒr®tj |j¡r®|j}n’t ¡ \}}t |¡ |}t	|dƒh}| 
dtj¡ | ¡ }| 
d¡ |}x<|dkr4| t|d	ƒ¡}|sP |t|ƒ8 }| |¡ qúW W dQ R X |rJd
nd}ddd| d|
 dddd|› d|› d|	d  › d|	d  › dd|ddg}tdk	r¼ts´tdƒ‚t|d< zNd}tj d¡rèt ¡ }| jtjO  _tj||d t 	|¡}| ¡  W dyt |¡ |r(t |¡ W n tk
r@   Y nX X |j  ¡ }| ¡  |S )z!Render an image using Ghostscriptr   r   g      R@é   é   NÚnameÚwbi  ZpngalphaZppmrawr   z-qz-g%dx%dz-r%fx%fz-dBATCHz	-dNOPAUSEz-dSAFERz	-sDEVICE=z-sOutputFile=z-cú z
 translatez-fZshowpagez%Unable to locate Ghostscript on pathsr   )Ústartupinfo)!ÚintÚtempfileZmkstempÚosÚcloseÚhasattrÚpathÚexistsr   ÚopenÚseekÚioÚSEEK_ENDÚtellÚreadÚminÚlenÚwriter	   r   r
   r   r   r   ZSTARTUPINFOZdwFlagsZSTARTF_USESHOWWINDOWr   r   ÚloadÚunlinkÚimÚcopy)ÚtileÚsizeÚfpÚscaleÚtransparencyÚdecoderÚoffsetÚdataÚlengthZbboxZresZout_fdZoutfileZinfile_tempZinfileZin_fdÚfZfsizeZ
lengthfileÚsZdeviceZcommandr   Zout_imr+   r   r   r   ÚGhostscript@   s|    






r8   c               @   s.   e Zd ZdZdd„ Zejfdd„Zdd„ ZdS )	ÚPSFilezP
    Wrapper for bytesio object that treats either CR or LF as end of line.
    c             C   s   || _ d | _d S )N)r/   Úchar)Úselfr/   r   r   r   Ú__init__¦   s    zPSFile.__init__c             C   s   d | _ | j ||¡ d S )N)r:   r/   r!   )r;   r3   Úwhencer   r   r   r!   ª   s    zPSFile.seekc             C   sx   | j pdg}d | _ | j d¡}x*|dkrHt|ƒrH| |¡ | j d¡}q W | j d¡| _ | j dkrhd | _ d |¡ d¡S )Nó    r   s   
zlatin-1)r:   r/   r%   r'   ÚappendÚjoinÚdecode)r;   r7   Úcr   r   r   Úreadline®   s    

zPSFile.readlineN)	Ú__name__Ú
__module__Ú__qualname__Ú__doc__r<   r"   ÚSEEK_SETr!   rC   r   r   r   r   r9   ¡   s   r9   c             C   s(   | d d… dkp&t | ƒdko&t| ƒdkS )Né   s   %!PSl   ÅP§ )r'   Úi32)Úprefixr   r   r   Ú_accept¿   s    rL   c               @   sH   e Zd ZdZdZdZdddddœZd	d
„ Zdd„ Zddd„Z	dd„ Z
dS )ÚEpsImageFilez.EPS File Parser for the Python Imaging LibraryZEPSzEncapsulated PostscriptÚLZLABÚRGBÚCMYK)r   r   r   rI   c          
   C   sÄ  |   | j¡\}}t| jƒ}| |¡ d }d| _d| _| ¡ }| d¡}x˜|rà|r¶t|ƒdkrjt	dƒ‚yt
 |¡}W n. tjk
r¦ } zt	dƒ|‚W d d }~X Y nX |r>| dd¡\}	}
|
| j|	< |	dkr¶yRd	d
„ |
 
¡ D ƒ}|d |d  |d |d  f| _dd| j |||ffg| _W n tk
r:   Y nX nxt |¡}|rž| d¡}	|	dkrdP |	d d… dkr’|	dd … | j|	d d… < n
d| j|	< n|d dkr®ntdƒ‚| ¡ }| d¡}|rJ|d d… dkrJP qJW xÎ|d d… dkr°t|ƒdkrt	dƒ‚|d d… dkr–|dd …  
d d¡d d… \}}}}t|ƒdkrRP y| jt|ƒ | _W n tk
r~   P Y nX t|ƒt|ƒf| _d S | ¡  d¡}|säP qäW |sÀtdƒ‚d S )NrO   )r   r   z
éÿ   znot an EPS filer   r   ZBoundingBoxc             S   s   g | ]}t t|ƒƒ‘qS r   )r   Úfloat)Ú.0Úir   r   r   ú
<listcomp>÷   s    z&EpsImageFile._open.<locals>.<listcomp>r   r   Úeps)r   r   ZEndCommentsé   zPS-Adobeé	   Ú ú%zbad EPS headeré   z%ImageData:é   rI   z!cannot determine EPS bounding box)Ú_find_offsetr/   r9   r!   ÚmodeÚ_sizerC   Ústripr'   ÚSyntaxErrorÚsplitÚmatchÚreÚerrorÚgroupÚinfor.   r-   Ú	ExceptionÚfieldr   r   Úmode_mapÚ
ValueError)r;   r5   r3   r/   ZboxZs_rawr7   ÚmÚeÚkÚvÚxÚyZbiZmor   r   r   Ú_openÐ   sv    





"



$zEpsImageFile._openc             C   sj   |  d¡}|d d… dkr6| dtj¡ | ¡ }d}n,t|dƒdkrZt|dƒ}t|dƒ}ntdƒ‚||fS )Né    rI   s   %!PSr   l   ÅP§ rW   znot an EPS file)r%   r!   r"   r#   r$   rJ   ra   )r;   r/   r7   r5   r3   r   r   r   r]   4  s    

zEpsImageFile._find_offsetr   Fc             C   sD   | j r8t| j | j| j||ƒ| _| jj| _| jj| _g | _ tj | ¡S )N)	r-   r8   r.   r/   r+   r^   r_   r   r)   )r;   r0   r1   r   r   r   r)   J  s    

zEpsImageFile.loadc             O   s   d S )Nr   )r;   ÚargsÚkwargsr   r   r   Ú	load_seekS  s    zEpsImageFile.load_seekN)r   F)rD   rE   rF   rG   ÚformatZformat_descriptionrj   rr   r]   r)   rv   r   r   r   r   rM   È   s   d
	rM   c             C   s”  |   ¡  | jdkrd}n(| jdkr(d}n| jdkr8d}ntdƒ‚|r¤| d¡ | d	¡ | d
| j ¡ | d¡ | d¡ | d¡ | d| j ¡ | d| ¡ | d¡ | d¡ | d| jd |d   ¡ | d| j ¡ | d| j ¡ | d| jd | jd | jd f ¡ | d¡ | |d d ¡ t|dƒrJ| ¡  t | |dd| j ddfg¡ | d¡ | d ¡ t|dƒr| ¡  dS )!z*EPS Writer for the Python Imaging Library.rN   )rW   r   s   imagerO   )rW   r   s   false 3 colorimagerP   )rW   rI   s   false 4 colorimagezimage mode is not supporteds   %!PS-Adobe-3.0 EPSF-3.0
s   %%Creator: PIL 0.1 EpsEncode
s   %%%%BoundingBox: 0 0 %d %d
s   %%Pages: 1
s   %%EndComments
s   %%Page: 1 1
s   %%ImageData: %d %d s   %d %d 0 1 1 "%s"
s   gsave
s   10 dict begin
s   /buf %d string def
r   r   s   %d %d scale
s   %d %d 8
s   [%d 0 0 -%d 0 %d]
s+   { currentfile buf readhexstring pop } bind
r   ó   
ÚflushrV   )r   r   Ns   
%%%%EndBinary
s   grestore end
)	r)   r^   rk   r(   r.   r   ry   r   Ú_save)r+   r/   ÚfilenamerV   Úoperatorr   r   r   rz   ]  s@    









&


rz   z.psz.epszapplication/postscript)r   F)r   ) r"   r   rd   r   r
   r   rY   r   r   Z_binaryr   rJ   Úcompilerb   ri   r	   r   r   ZshutilZbinaryÚwhichr   r8   r9   rL   rM   rz   Zregister_openrw   Zregister_saveZregister_extensionsZregister_mimer   r   r   r   Ú<module>   s8   



a	 
8