a Sict;@sdZddlZddlZddlZddlZddlmZddlZddlm Z ddl Z ddl Z ddl mZmZmZeeZddddZGd d d ZdS) a Support for embedded TeX expressions in Matplotlib. Requirements: * LaTeX. * \*Agg backends: dvipng>=1.6. * PS backend: PSfrag, dvips, and Ghostscript>=9.0. * PDF and SVG backends: if LuaTeX is present, it will be used to speed up some post-processing steps, but note that it is not used to parse the TeX string itself (only LaTeX is supported). To enable TeX rendering of all text in your Matplotlib figure, set :rc:`text.usetex` to True. TeX and dvipng/dvips processing results are cached in ~/.matplotlib/tex.cache for reuse between sessions. `TexManager.get_rgba` can also be used to directly obtain raster output as RGBA NumPy arrays. N)Path)TemporaryDirectory)_apicbookdvireadoptioncCs&|durd|dnd}d||dS)a$ Output LaTeX code that loads a package (possibly with an option) if it hasn't been loaded yet. LaTeX cannot load twice a package with different options, so this helper can be used to protect against users loading arbitrary packages/options in their custom preamble. N[]z]\makeatletter\@ifpackageloaded{%(package)s}{}{\usepackage%(option)s{%(package)s}}\makeatotherpackagerr rrQ/var/www/html/django/DPS/env/lib/python3.9/site-packages/matplotlib/texmanager.py_usepackage_if_not_loaded's rc@sbeZdZdZejedZ iZ dZ ddddddd d d d d d dddddZ ddddddddddddd Z edZedZedZedZeddZedddZeddZeddZed8d d!Zed"d#Zed$d%Zed&d'Zed(d)Z edd*d+d,Z!ed-d.Z"ed/d0Z#ed9d1d2Z$ed:d4d5Z%ed;d6d7Z&dS)< TexManagerz Convert strings to dvi files using TeX, caching the results to a directory. Repeated calls to this constructor always return the same instance. z tex.cache)serif sans-serifcursive monospacez\renewcommand{\rmdefault}{pnc}z\renewcommand{\rmdefault}{pbk}z\usepackage{mathptmx}z\usepackage{mathpazo}z\usepackage{chancery}z\usepackage{charter}r z\usepackage{helvet}z\usepackage{avant}z\usepackage{courier}z\usepackage{type1ec})new century schoolbookbookmantimespalatino zapf chanceryrcharterrr helvetica avant gardecourierrcomputer modern romancomputer modern sans serifcomputer modern typewriterrrrr) rrrrrrrrrrr r!z3.5cCst|jjdddt|S)NT)parentsexist_ok)rtexcachemkdirobject__new__clsrrrr'lszTexManager.__new__z3.6cCs0|\}}|||}t|dS)Nutf-8)_get_font_preamble_and_commandget_custom_preamblehashlibmd5encode hexdigest)selfpreambleZfont_cmd preamblesrrrget_font_configqs zTexManager.get_font_configcCstjd}t|dkr"|dnd}t|dkrD||jvrD|dfSt|dkrh||jvrh|j|dfStdd |jd SdS) zsz.)rrrrz\usepackage{type1cm} rz \sffamilyrz \ttfamilyz \rmfamily) rBr;r<r7r8r:r>debugr?addr@sorted)r)Zrequested_familyZis_reduced_font font_familyfontcmdr2fontcmdrrErr+sH        z)TexManager._get_font_preamble_and_commandNcCs4|||t|}tj|jt|d S)zU Return a filename based on a hash of the string, fontsize, and dpi. r*) _get_tex_sourcestrospathr@r$r-r.r/r0)r)texfontsizedpisrcrrr get_basefileszTexManager.get_basefilecCs|\}}|S)zU Return a string containing font configuration for the tex preamble. )r+)r) font_preamblecommandrrrget_font_preambles zTexManager.get_font_preamblecCs tjdS)z>Return a string containing user additions to the tex preamble.ztext.latex.preamble)r7r8r(rrrr,szTexManager.get_custom_preamblec"Cs|\}}d|}dddddd|dd d d d d |ddtdddddtdddddddd|d|ddd |d!|dd"d#gS)$z;Return the complete TeX source for processing a TeX string.g?rGz\documentclass{article}z=% Pass-through \mathdefault, which is used in non-usetex modez>% to use the default text font but was historically suppressedz% in usetex mode.z \newcommand{\mathdefault}[1]{#1}z\usepackage[utf8]{inputenc}z.\DeclareUnicodeCharacter{2212}{\ensuremath{-}}z3% geometry is loaded before the custom preamble as z<% convert_psfrags relies on a custom preamble to change the z % geometry.z1\usepackage[papersize=72in, margin=1in]{geometry}z?% Use `underscore` package to take care of underscores in text.z?% The [strings] option allows to use underscores in file names. underscorestringsrz;% Custom packages (e.g. newtxtext) may already have loaded z"% textcomp with different options.Ztextcompz\pagestyle{empty}z\begin{document}z>% The empty hbox ensures that a page is printed even for emptyz=% inputs, except when using psfrag which gets confused by it.z;% matplotlibbaselinemarker is used by dviread to detect thez% last line's baseline.z \fontsize{z}{z}%z!\ifdefined\psfrag\else\hbox{}\fi%z {\obeylines z#\special{matplotlibbaselinemarker}%z\end{document})r+r@r,r)r)rSrTrXrNZ baselineskiprrrrOsD  zTexManager._get_tex_sourcecCs.|||d}t|j|||dd|S)zv Generate a tex file to render the tex string at a specific font size. Return the file name. z.texr*)encoding)rWr write_textrO)r)rSrTtexfilerrrmake_texs zTexManager.make_texcwdc Cstt|z$tj||dur$|n|jtjd}Wntyl}z t d |d|WYd}~n`d}~0tj y}z>t dj |dt|| d|j ddddWYd}~n d}~00t||S) N)rcstderrz?Failed to process string with tex because {} could not be foundrz{prog} was not able to process the following string: {tex!r} Here is the full command invocation and its output: {format_command} {exc} unicode_escaper*backslashreplace)progformat_commandrSexc)r>rHr_pformat_subprocess subprocess check_outputr$STDOUTFileNotFoundError RuntimeErrorformatCalledProcessErrorr/outputdecode)r)rYrSrcreportrirrr_run_checked_subprocesss6    z"TexManager._run_checked_subprocesscCs|||}d|}tj|st|||}tt|jdH}|jdddd|j g||dt|t|j  |Wdn1s0Y|S) zm Generate a dvi file containing latex's layout of tex string. Return the file name. z%s.dvi)dirlatexz-interaction=nonstopmodez--halt-on-errorz../rbN) rWrQrRexistsrrarparentrunamereplace)r)rSrTbasefiledvifiler`tmpdirrrrmake_dvis    6zTexManager.make_dvic Cs||||}d|}tj|s~|||}ddddt|ddd||g }ttd d rrtdj d krr| d d | |||S)zp Generate a png file containing latex's rendering of tex string. Return the file name. z%s.pngdvipngz-bgZ Transparentz-Dz-Ttightz-oZ_called_from_pytestFz1.16r6z --freetype0) rWrQrRrxrrPgetattrr7_get_executable_info raw_versioninsertru)r)rSrTrUr|pngfiler}rMrrrmake_png.s      zTexManager.make_pngcCs|stjd}|stjd}||||f}|j|}|dur||||}tjtj |j |}|dddddf|j|<}|S)zReturn the alpha channel.z font.sizez savefig.dpiN) r7r8rO _grey_arraydgetrimageimreadrQrRr@r$)r)rSrTrUkeyalpharrgbarrrget_greyFs    zTexManager.get_greyrrrcCsH||||}tg|jdR}tj||dddf<||d<|S)a* Return latex's rendering of the tex string as an rgba array. Examples -------- >>> texmanager = TexManager() >>> s = r"\TeX\ is $\displaystyle\sum_n\frac{-e^{i\pi}}{2^n}$!" >>> Z = texmanager.get_rgba(s, fontsize=12, dpi=80, rgb=(1, 0, 0)) .N).r)rnpemptyshaper7colorsto_rgb)r)rSrTrUrgbrrrrrget_rgbaUs zTexManager.get_rgbacCsz|dkrdS|||}|r*|dnd}t|d|}|\}Wdn1sZ0Y|j|j|j|jfS)z-Return width, height and descent of the text.r rg?r6HN)striprpoints_to_pixelsrDviwidthheightdescent)r)rSrTrendererr}Z dpi_fractiondvipagerrrget_text_width_height_descentfs  $z(TexManager.get_text_width_height_descent)N)NN)NNr)N)'__name__ __module__ __qualname____doc__rQrRr@r7 get_cachedirr$rr;r<r=rdeprecate_privatize_attributeZ grey_arraydrKZ font_familiesZ font_info functools lru_cacher' deprecatedr4 classmethodrBr+rWrZr,rOrarurrrrrrrrrr8s        (    %     r)rrr-loggingrQpathlibrrktempfilernumpyr matplotlibr7rrr getLoggerrr>rrrrrrs