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Commitf240057

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committed
Add language parameter to Text objects
1 parentf017a0e commitf240057

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11 files changed

+84
-15
lines changed

11 files changed

+84
-15
lines changed

‎lib/matplotlib/_text_helpers.py

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -43,7 +43,7 @@ def warn_on_missing_glyph(codepoint, fontnames):
4343
f"Matplotlib currently does not support{block} natively.")
4444

4545

46-
deflayout(string,font,*,kern_mode=Kerning.DEFAULT):
46+
deflayout(string,font,language,*,kern_mode=Kerning.DEFAULT):
4747
"""
4848
Render *string* with *font*.
4949
@@ -65,7 +65,7 @@ def layout(string, font, *, kern_mode=Kerning.DEFAULT):
6565
"""
6666
x=0
6767
prev_glyph_idx=None
68-
char_to_font=font._get_fontmap(string)
68+
char_to_font=font._get_fontmap(string)# TODO: Pass in language.
6969
base_font=font
7070
forcharinstring:
7171
# This has done the fallback logic

‎lib/matplotlib/backends/backend_agg.py

Lines changed: 2 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -189,7 +189,8 @@ def draw_text(self, gc, x, y, s, prop, angle, ismath=False, mtext=None):
189189
font=self._prepare_font(prop)
190190
# We pass '0' for angle here, since it will be rotated (in raster
191191
# space) in the following call to draw_text_image).
192-
font.set_text(s,0,flags=get_hinting_flag())
192+
font.set_text(s,0,flags=get_hinting_flag(),
193+
language=mtext.get_language()ifmtextisnotNoneelseNone)
193194
font.draw_glyphs_to_bitmap(
194195
antialiased=gc.get_antialiased())
195196
d=font.get_descent()/64.0

‎lib/matplotlib/backends/backend_pdf.py

Lines changed: 4 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -2345,6 +2345,7 @@ def draw_text(self, gc, x, y, s, prop, angle, ismath=False, mtext=None):
23452345
returnself.draw_mathtext(gc,x,y,s,prop,angle)
23462346

23472347
fontsize=prop.get_size_in_points()
2348+
language=mtext.get_language()ifmtextisnotNoneelseNone
23482349

23492350
ifmpl.rcParams['pdf.use14corefonts']:
23502351
font=self._get_font_afm(prop)
@@ -2355,7 +2356,7 @@ def draw_text(self, gc, x, y, s, prop, angle, ismath=False, mtext=None):
23552356
fonttype=mpl.rcParams['pdf.fonttype']
23562357

23572358
ifgc.get_url()isnotNone:
2358-
font.set_text(s)
2359+
font.set_text(s,language=language)
23592360
width,height=font.get_width_height()
23602361
self.file._annotations[-1][1].append(_get_link_annotation(
23612362
gc,x,y,width/64,height/64,angle))
@@ -2389,7 +2390,8 @@ def draw_text(self, gc, x, y, s, prop, angle, ismath=False, mtext=None):
23892390
multibyte_glyphs= []
23902391
prev_was_multibyte=True
23912392
prev_font=font
2392-
foritemin_text_helpers.layout(s,font,kern_mode=Kerning.UNFITTED):
2393+
foritemin_text_helpers.layout(s,font,language,
2394+
kern_mode=Kerning.UNFITTED):
23932395
if_font_supports_glyph(fonttype,ord(item.char)):
23942396
ifprev_was_multibyteoritem.ft_object!=prev_font:
23952397
singlebyte_chunks.append((item.ft_object,item.x, []))

‎lib/matplotlib/backends/backend_ps.py

Lines changed: 2 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -795,9 +795,10 @@ def draw_text(self, gc, x, y, s, prop, angle, ismath=False, mtext=None):
795795
thisx+=width*scale
796796

797797
else:
798+
language=mtext.get_language()ifmtextisnotNoneelseNone
798799
font=self._get_font_ttf(prop)
799800
self._character_tracker.track(font,s)
800-
foritemin_text_helpers.layout(s,font):
801+
foritemin_text_helpers.layout(s,font,language):
801802
ps_name= (item.ft_object.postscript_name
802803
.encode("ascii","replace").decode("ascii"))
803804
glyph_name=item.ft_object.get_glyph_name(item.glyph_idx)

‎lib/matplotlib/text.py

Lines changed: 31 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -136,6 +136,7 @@ def __init__(self,
136136
super().__init__()
137137
self._x,self._y=x,y
138138
self._text=''
139+
self._language=None
139140
self._reset_visual_defaults(
140141
text=text,
141142
color=color,
@@ -1422,6 +1423,36 @@ def _va_for_angle(self, angle):
14221423
return'baseline'ifanchor_at_leftelse'top'
14231424
return'top'ifanchor_at_leftelse'baseline'
14241425

1426+
defget_language(self):
1427+
"""Return the language this Text is in."""
1428+
returnself._language
1429+
1430+
defset_language(self,language):
1431+
"""
1432+
Set the language of the text.
1433+
1434+
Parameters
1435+
----------
1436+
language : str or list[tuple[str, int, int]]
1437+
1438+
"""
1439+
_api.check_isinstance((list,str,None),language=language)
1440+
ifisinstance(language,list):
1441+
forvalinlanguage:
1442+
ifnotisinstance(val,tuple)orlen(val)!=3:
1443+
raiseValueError('language must be list of tuple, not {language!r}')
1444+
sublang,start,end=val
1445+
ifnotisinstance(sublang,str):
1446+
raiseValueError(
1447+
'sub-language specification must be str, not {sublang!r}')
1448+
ifnotisinstance(start,int):
1449+
raiseValueError('start location must be int, not {start!r}')
1450+
ifnotisinstance(end,int):
1451+
raiseValueError('end location must be int, not {end!r}')
1452+
1453+
self._language=language
1454+
self.stale=True
1455+
14251456

14261457
classOffsetFrom:
14271458
"""Callable helper class for working with `Annotation`."""

‎lib/matplotlib/text.pyi

Lines changed: 2 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -108,6 +108,8 @@ class Text(Artist):
108108
defset_antialiased(self,antialiased:bool)->None: ...
109109
def_ha_for_angle(self,angle:Any)->Literal['center','right','left']|None: ...
110110
def_va_for_angle(self,angle:Any)->Literal['center','top','baseline']|None: ...
111+
defget_language(self)->str|list[tuple[str,int,int]]|None: ...
112+
defset_language(self,language:str|list[tuple[str,int,int]]|None)->None: ...
111113

112114
classOffsetFrom:
113115
def__init__(

‎lib/matplotlib/textpath.py

Lines changed: 5 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -69,7 +69,7 @@ def get_text_width_height_descent(self, s, prop, ismath):
6969
d/=64.0
7070
returnw*scale,h*scale,d*scale
7171

72-
defget_text_path(self,prop,s,ismath=False):
72+
defget_text_path(self,prop,s,ismath=False,language=None):
7373
"""
7474
Convert text *s* to path (a tuple of vertices and codes for
7575
matplotlib.path.Path).
@@ -109,7 +109,8 @@ def get_text_path(self, prop, s, ismath=False):
109109
glyph_info,glyph_map,rects=self.get_glyphs_tex(prop,s)
110110
elifnotismath:
111111
font=self._get_font(prop)
112-
glyph_info,glyph_map,rects=self.get_glyphs_with_font(font,s)
112+
glyph_info,glyph_map,rects=self.get_glyphs_with_font(font,s,
113+
language=language)
113114
else:
114115
glyph_info,glyph_map,rects=self.get_glyphs_mathtext(prop,s)
115116

@@ -130,7 +131,7 @@ def get_text_path(self, prop, s, ismath=False):
130131
returnverts,codes
131132

132133
defget_glyphs_with_font(self,font,s,glyph_map=None,
133-
return_new_glyphs_only=False):
134+
return_new_glyphs_only=False,language=None):
134135
"""
135136
Convert string *s* to vertices and codes using the provided ttf font.
136137
"""
@@ -145,7 +146,7 @@ def get_glyphs_with_font(self, font, s, glyph_map=None,
145146

146147
xpositions= []
147148
glyph_ids= []
148-
foritemin_text_helpers.layout(s,font):
149+
foritemin_text_helpers.layout(s,font,language):
149150
char_id=self._get_char_id(item.ft_object,ord(item.char))
150151
glyph_ids.append(char_id)
151152
xpositions.append(item.x)

‎lib/matplotlib/textpath.pyi

Lines changed: 3 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -16,14 +16,16 @@ class TextToPath:
1616
self,s:str,prop:FontProperties,ismath:bool|Literal["TeX"]
1717
)->tuple[float,float,float]: ...
1818
defget_text_path(
19-
self,prop:FontProperties,s:str,ismath:bool|Literal["TeX"]= ...
19+
self,prop:FontProperties,s:str,ismath:bool|Literal["TeX"]= ...,
20+
language:str|list[tuple[str,int,int]]|None= ...,
2021
)->list[np.ndarray]: ...
2122
defget_glyphs_with_font(
2223
self,
2324
font:FT2Font,
2425
s:str,
2526
glyph_map:dict[str,tuple[np.ndarray,np.ndarray]]|None= ...,
2627
return_new_glyphs_only:bool= ...,
28+
language:str|list[tuple[str,int,int]]|None= ...,
2729
)->tuple[
2830
list[tuple[str,float,float,float]],
2931
dict[str,tuple[np.ndarray,np.ndarray]],

‎src/ft2font.cpp

Lines changed: 2 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -399,7 +399,8 @@ void FT2Font::set_kerning_factor(int factor)
399399
}
400400

401401
voidFT2Font::set_text(
402-
std::u32string_view text,double angle, FT_Int32 flags, std::vector<double> &xys)
402+
std::u32string_view text,double angle, FT_Int32 flags, LanguageType languages,
403+
std::vector<double> &xys)
403404
{
404405
FT_Matrix matrix;/* transformation matrix*/
405406

‎src/ft2font.h

Lines changed: 5 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -6,6 +6,7 @@
66
#ifndef MPL_FT2FONT_H
77
#defineMPL_FT2FONT_H
88

9+
#include<optional>
910
#include<set>
1011
#include<string>
1112
#include<string_view>
@@ -70,6 +71,9 @@ class FT2Font
7071
typedefvoid (*WarnFunc)(FT_ULong charcode, std::set<FT_String*> family_names);
7172

7273
public:
74+
using LanguageRange = std::tuple<std::string,int,int>;
75+
using LanguageType = std::optional<std::vector<LanguageRange>>;
76+
7377
FT2Font(FT_Open_Args &open_args,long hinting_factor,
7478
std::vector<FT2Font *> &fallback_list, WarnFunc warn);
7579
virtual~FT2Font();
@@ -78,7 +82,7 @@ class FT2Font
7882
voidset_charmap(int i);
7983
voidselect_charmap(unsignedlong i);
8084
voidset_text(std::u32string_view codepoints,double angle, FT_Int32 flags,
81-
std::vector<double> &xys);
85+
LanguageType languages,std::vector<double> &xys);
8286
intget_kerning(FT_UInt left, FT_UInt right, FT_Kerning_Mode mode,bool fallback);
8387
intget_kerning(FT_UInt left, FT_UInt right, FT_Kerning_Mode mode, FT_Vector &delta);
8488
voidset_kerning_factor(int factor);

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