^j= d Z ddlmZ ddlmZ ddlmZ ddlZddlZddl Z ddl
m Z ddl Z
ddlmZmZ dd lmZ dd
lmZ e j* r"dd lmZ dd lmZ d
dlmZ d
dlmZmZm Z ddl m Z dddZ ej@ d d Z! G d de jD Z# d dZ$d Z% G d d Z& G d d Z' G d d e Z(y)!z7
Common functionality between the PDF and PS backends.
) annotations)contextmanager)BytesION)subset ) font_managerft2font)AFM) RendererBase) Generator)AbstractContextManager )FontPath)CharacterCodeTypeFT2FontGlyphIndexType)TTFont i ) * 2 c \ t | d 5 }t | cd d d S # 1 sw Y y xY w)Nrb)openr
)fnamefhs n/var/www/ramen.bs-engineer-server.com/venv/lib/python3.12/site-packages/matplotlib/backends/_backend_pdf_ps.py_cached_get_afm_from_fnamer $ s*
eT b2w s "+c 8 e Zd ZU dZded< ded< edd Zy)
SubsetResultsa
The results of a subsetting operation on a font.
Attributes
----------
font : TTFont
An open font object representing the subset.
glyph_index_map : dict
Mapping of requested glyph indices to actual subset glyph indices.
r fontz$dict[GlyphIndexType, GlyphIndexType]glyph_index_mapc # V K | j 5 | d d d y # 1 sw Y y xY wwN)r! selfs r _as_cmzSubsetResults._as_cm9 s&
YY J s
) )&)N)returnz$Generator[SubsetResults, None, None])__name__
__module__ __qualname____doc____annotations__r r' r r r * s& L99 r/ r c f t j dd }|xj g dz
c_ | j |_ t j
| | }t j | }|j | |j | t ||j j S )ab
Subset a TTF font.
Reads the named fontfile and restricts the font to the glyphs.
Parameters
----------
fontfile : FontPath
Path to the font file
glyphs : set[GlyphIndexType]
Set of glyph indices to include in subset.
Returns
-------
SubsetResults
The font and new glyph index mapping.
T) glyph_namesrecommended_glyphs)FFTMPfEdBDFmetaMERGTSIVZapfbdatbloccidgfdscfeatfmtxfondjustkerxltagmorxtrakxref)options)gids) r Options drop_tables
face_index font_number load_font Subsetterpopulater r" r' )fontfileglyphsrG r! subsetters r get_glyphs_subsetrS ? s ( nn$GG . #--G Hg .D 1I
F#
T y 8 8 9 @ @ BBr/ c @ t }| j |d |S )z
Convert a TTFont object into a file-like object.
Parameters
----------
font : fontTools.ttLib.ttFont.TTFont
A font object
Returns
-------
BytesIO
A file object with the font saved into it
F)
reorderTables)r save)r! r s r font_as_filerW v s
BIIbI&
Ir/ c H e Zd ZdZddZ ddZ d dZ d
dZy) GlyphMapa
A two-way glyph mapping.
The forward glyph map is from (character string, glyph index)-pairs to
(subset index, subset character code)-pairs.
The inverse glyph map is from to (subset index, subset character code)-pairs to
(character string, glyph index)-pairs.
c i | _ i | _ y r$ _forward_inverser% s r __init__zGlyphMap.__init__ s =?
IK
r/ c < | j j ||f S )z
Get the forward mapping from a (character string, glyph index)-pair.
This may return *None* if the pair is not currently mapped.
)r\ get)r& charcodes glyph_indexs r r` z GlyphMap.get s }} )[!9::r/ c $ | j ||f S )z>Get the inverse mapping from a (subset, subset charcode)-pair.)r] )r& r subset_charcodes r igetz
GlyphMap.iget s }}fo 677r/ c P ||f| j ||f< ||f| j ||f< y)a
Add a mapping to this instance.
Parameters
----------
charcode : CharacterCodeType
The character code to record.
glyph_index : GlyphIndexType
The corresponding glyph index to record.
subset : int
The subset in which the subset character code resides.
subset_charcode : CharacterCodeType
The subset character code within the above subset.
Nr[ )r& charcoderb r rd s r addz GlyphMap.add s4 39/1J
x-.4`_.
Returns
-------
list[tuple[int, CharacterCodeType]]
A list of subset and character code pairs corresponding to the input string.
If a *subset_size* is specified on this instance, then the character code
will correspond with the given subset (and not necessarily the string as a
whole). If *subset_size* is not specified, then the subset will always be 0
and the character codes will be returned from the string unchanged.
)featureslanguage)_layoutr LoadFlags
NO_HINTING track_glyph ft_objectcharrb )r& r! srs rt raqm_items r trackzCharacterTracker.track sh B "\\!W->->-I-I3;h * P
Y 0 0)..)BWBW X
s 8A+c t |t rt |d }n
|}t | }t j
|j |j }| j j |t }|j || x}r|S | j j |i g }t | dkD xs) | j dk7 xr || j k\ xs ||d v } | rWt | dk( st |d | j k( r|j i t | dz
}
t |d } nd}
|} |||
| < |j! |||
| |
| fS )a
Record character code *charcode* at glyph index *glyph* as using font *font*.
Parameters
----------
font : FT2Font
A font that is being used for the provided string.
chars : str or CharacterCodeType
The character(s) to record. This may be a single character code, or multiple
characters in a string, if the glyph maps to several characters. It will be
normalized to a string internally.
glyph : GlyphIndexType
The corresponding glyph index to record.
Returns
-------
subset : int
The subset in which the returned character code resides. If *subset_size*
was not specified on this instance, then this is always 0.
subset_charcode : CharacterCodeType
The character code within the above subset. If *subset_size* was not
specified on this instance, then this is just *charcode* unmodified.
r r )
isinstancerj ordchrr r r rK rp
setdefaultrY r` ro lenrq appendrh ) r& r! charsglyphrg font_path glyph_mapresult subset_mapsuse_next_charmapr rd s r rx z CharacterTracker.track_glyph sd 2 eS !58}H HJE ))$**dooF OO..y(*E ]]5%0 06 0Mii**9rd;
JN
!
D , ,, . {1~- ; 1$KO(<@P@P(P""2&%)F !+b/ 2OF &O/4 FO,
eUFO<((r/ c F | j | j || d S )a
Map a subset index and character code to a Unicode character code.
Parameters
----------
fontname : str
The name of the font, from the *used* dictionary key.
subset : int
The subset index within a font.
subset_charcode : CharacterCodeType
The character code within a subset to map back.
Returns
-------
str
The Unicode character(s) corresponding to the subsetted character code.
r )rp re )r& fontnamer rd s r subset_to_unicodez"CharacterTracker.subset_to_unicodeH s% & x(--foFqIIr/ )r )rq rk )NN)
r! r r{ rj rs ztuple[str, ...] | Nonert z-str | tuple[tuple[str, int, int], ...] | Noner( z#list[tuple[int, CharacterCodeType]])r! r r zstr | CharacterCodeTyper r r( z tuple[int, CharacterCodeType])r rj r rk rd r r( rj )r) r* r+ r, r^ r} rx r r. r/ r rm rm sb 4
' 26HL#
.#
E#
7#
J>))>).K>)@J+<JADJr/ rm c R e Zd Z fdZd Zd Zd Zd Zd Z fdZ d Z
d Z xZ S )
RendererPDFPSBasec > t | || _ || _ y r$ )superr^ widthheight)r& r r __class__s r r^ zRendererPDFPSBase.__init__c s
r/ c y)NFr. r% s r flipyzRendererPDFPSBase.flipyh s r/ c y)NTr. r% s r option_scale_imagez$RendererPDFPSBase.option_scale_imagel s r/ c * t j d S )Nzimage.composite_image)mplrcParamsr% s r option_image_nocompositez*RendererPDFPSBase.option_image_nocompositep s << 7888r/ c > | j dz | j dz fS )Ng R@)r r r% s r get_canvas_width_heightz)RendererPDFPSBase.get_canvas_width_heightu s zzD $++"444r/ c t j | j sy| j | }|j dz }|j |z }|j
|z }||z dz }|||fS )a
Return the ascent, descent, and line gap for font described by *prop*.
TODO: This is a temporary method until we design a proper API for the backends.
Parameters
----------
prop : `.font_manager.FontProperties`
The properties describing the font to measure.
Returns
-------
ascent, descent, line_gap : float or None
The ascent, descent and line gap of the determined font, or None to fall
back to normal measurements.
)NNN g?)r r _use_afm_rc_name
_get_font_afmget_size_in_points get_ascender
get_descender)r& propr! scaleadgs r _get_font_height_metricsz*RendererPDFPSBase._get_font_height_metricsy s} " ||D 1 12#!!$''')D0 % '
! !E )
UcM!Qwr/ c |dk( rt | ||| S |rJ| j j j |d| }|j
|j |j fS t j | j rO| j | }|j | \ }}}} }
|j dz } || z }| | z } |
| z }
|| |
fS | j | }|j |dt j" j$ |j' \ }} |j) }
d} || z }| | z } |
| z }
|| |
fS )NTeXH r g )flagsg ?)r get_text_width_height_descent
_text2pathmathtext_parserparser r depthr r r r get_str_bbox_and_descentr
_get_font_ttfset_textr rv rw get_width_height get_descent)
r& r{ r ismathr r! lbwhr r r s
r r z/RendererPDFPSBase.get_text_width_height_descent sF U?78D&I I
OO3399!RFE;; ekk9 9
\\$//
0%%d+D 9 9! t j j | } t j | }|j |j |j
d |S # t $ r+ t j t j d| w xY w)Nr zMThe PostScript/PDF backend does not currently support the selected font (%s).) r fontManager_find_fonts_by_propsget_fontclearset_sizer RuntimeErrorlogging getLoggerr) warning)r& r fnamesr! s r r z RendererPDFPSBase._get_font_ttf s ))>>tD ((0D JJL MM$113R 8K h ' / /239
;
s AA( (4B )
r) r* r+ r^ r r r r r r r r
__classcell__)r s @r r r ^ s0
9
5441
r/ r )rP r rQ zset[GlyphIndexType]r( z%AbstractContextManager[SubsetResults]))r,
__future__r
contextlibr ior functoolsr typing fontToolsr
matplotlibr r r _afmr
backend_basesr
TYPE_CHECKINGcollections.abcr r
r r r r fontTools.ttLibr _FONT_MAX_GLYPH lru_cacher
NamedTupler rS rW rY rm r r. r/ r r s # %
$ (
)1&CC&
R
F%% *4C4C 34C*4Cn&0K 0Kf_J _JD_ _r/