Revision: 6342
http://matplotlib.svn.sourceforge.net/matplotlib/?rev=6342&view=rev
Author: mdboom
Date: 2008-10-28 18:10:51 +0000 (Tue, 28 Oct 2008)
Log Message:
-----------
Add nearest neighbor search for fonts.
Modified Paths:
--------------
trunk/matplotlib/examples/pylab_examples/fonts_demo.py
trunk/matplotlib/examples/pylab_examples/fonts_demo_kw.py
trunk/matplotlib/lib/matplotlib/font_manager.py
trunk/matplotlib/lib/matplotlib/fontconfig_pattern.py
trunk/matplotlib/lib/matplotlib/text.py
Modified: trunk/matplotlib/examples/pylab_examples/fonts_demo.py
===================================================================
--- trunk/matplotlib/examples/pylab_examples/fonts_demo.py 2008-10-28
12:51:39 UTC (rev 6341)
+++ trunk/matplotlib/examples/pylab_examples/fonts_demo.py 2008-10-28
18:10:51 UTC (rev 6342)
@@ -11,7 +11,7 @@
subplot(111, axisbg='w')
font0 = FontProperties()
-alignment = {'horizontalalignment':'center', 'verticalalignment':'center'}
+alignment = {'horizontalalignment':'center', 'verticalalignment':'baseline'}
### Show family options
family = ['serif', 'sans-serif', 'cursive', 'fantasy', 'monospace']
@@ -53,7 +53,7 @@
t = text(0.0, 0.9, 'variant', fontproperties=font1,
**alignment)
-for k in range(1):
+for k in range(2):
font = font0.copy()
font.set_family('serif')
font.set_variant(variant[k])
Modified: trunk/matplotlib/examples/pylab_examples/fonts_demo_kw.py
===================================================================
--- trunk/matplotlib/examples/pylab_examples/fonts_demo_kw.py 2008-10-28
12:51:39 UTC (rev 6341)
+++ trunk/matplotlib/examples/pylab_examples/fonts_demo_kw.py 2008-10-28
18:10:51 UTC (rev 6342)
@@ -8,7 +8,7 @@
from pylab import *
subplot(111, axisbg='w')
-alignment = {'horizontalalignment':'center', 'verticalalignment':'center'}
+alignment = {'horizontalalignment':'center', 'verticalalignment':'baseline'}
### Show family options
family = ['serif', 'sans-serif', 'cursive', 'fantasy', 'monospace']
@@ -40,7 +40,7 @@
t = text(0.0, 0.9, 'variant', **alignment)
-for k in range(1):
+for k in range(2):
t = text( 0.0, yp[k], variant[k], family='serif', variant=variant[k],
**alignment)
Modified: trunk/matplotlib/lib/matplotlib/font_manager.py
===================================================================
--- trunk/matplotlib/lib/matplotlib/font_manager.py 2008-10-28 12:51:39 UTC
(rev 6341)
+++ trunk/matplotlib/lib/matplotlib/font_manager.py 2008-10-28 18:10:51 UTC
(rev 6342)
@@ -4,9 +4,9 @@
This module provides a single :class:`FontManager` instance that can
be shared across backends and platforms. The :func:`findfont`
function returns the best TrueType (TTF) font file in the local or
-system font path that matches the specified FontProperties. The
-FontManager also handles Adobe Font Metrics (AFM) font files for use
-by the PostScript backend.
+system font path that matches the specified :class:`FontProperties`
+instance. The :class:`FontManager` also handles Adobe Font Metrics
+(AFM) font files for use by the PostScript backend.
The design is based on the `W3C Cascading Style Sheet, Level 1 (CSS1)
font specification <http://www.w3.org/TR/1998/REC-CSS2-19980512/>`_.
@@ -64,15 +64,53 @@
verbose = matplotlib.verbose
-font_scalings = {'xx-small': 0.579, 'x-small': 0.694, 'small': 0.833,
- 'medium': 1.0, 'large': 1.200, 'x-large': 1.440,
- 'xx-large': 1.728, 'larger': 1.2, 'smaller': 0.833}
+font_scalings = {
+ 'xx-small' : 0.579,
+ 'x-small' : 0.694,
+ 'small' : 0.833,
+ 'medium' : 1.0,
+ 'large' : 1.200,
+ 'x-large' : 1.440,
+ 'xx-large' : 1.728,
+ 'larger' : 1.2,
+ 'smaller' : 0.833,
+ None : 1.0}
-weight_dict = {'light': 200, 'normal': 400, 'regular': 400, 'book': 400,
- 'medium': 500, 'roman': 500, 'semibold': 600, 'demibold': 600,
- 'demi': 600, 'bold': 700, 'heavy': 800, 'extra bold': 800,
- 'black': 900}
+stretch_dict = {
+ 'ultra-condensed' : 100,
+ 'extra-condensed' : 200,
+ 'condensed' : 300,
+ 'semi-condensed' : 400,
+ 'normal' : 500,
+ 'semi-expanded' : 600,
+ 'expanded' : 700,
+ 'extra-expanded' : 800,
+ 'ultra-expanded' : 900}
+weight_dict = {
+ 'ultralight' : 100,
+ 'light' : 200,
+ 'normal' : 400,
+ 'regular' : 400,
+ 'book' : 400,
+ 'medium' : 500,
+ 'roman' : 500,
+ 'semibold' : 600,
+ 'demibold' : 600,
+ 'demi' : 600,
+ 'bold' : 700,
+ 'heavy' : 800,
+ 'extra bold' : 800,
+ 'black' : 900}
+
+font_family_aliases = set([
+ 'serif',
+ 'sans-serif',
+ 'cursive',
+ 'fantasy',
+ 'monospace',
+ 'sans'])
+
# OS Font paths
MSFolders = \
r'Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders'
@@ -117,12 +155,14 @@
'afm': ('afm',)}[fontext]
def win32FontDirectory():
- """Return the user-specified font directory for Win32. This is
+ """
+ Return the user-specified font directory for Win32. This is
looked up from the registry key::
\\HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell
Folders\Fonts
- If the key is not found, $WINDIR/Fonts will be returned."""
+ If the key is not found, $WINDIR/Fonts will be returned.
+ """
try:
import _winreg
except ImportError:
@@ -331,19 +371,21 @@
return weight
-class FontKey(object):
+class FontEntry(object):
"""
A class for storing Font properties. It is used when populating
the font lookup dictionary.
"""
def __init__(self,
+ fname ='',
name ='',
style ='normal',
variant='normal',
weight ='normal',
stretch='normal',
- size ='medium'
+ size ='medium',
):
+ self.fname = fname
self.name = name
self.style = style
self.variant = variant
@@ -355,12 +397,12 @@
self.size = size
-def ttfFontProperty(font):
+def ttfFontProperty(fontpath, font):
"""
A function for populating the :class:`FontKey` by extracting
information from the TrueType font file.
- *font* is an :class:`FT2Font` instance.
+ *font* is a :class:`FT2Font` instance.
"""
name = font.family_name
@@ -447,10 +489,10 @@
# !!!! Incomplete
size_adjust = None
- return FontKey(name, style, variant, weight, stretch, size)
+ return FontEntry(fontpath, name, style, variant, weight, stretch, size)
-def afmFontProperty(font):
+def afmFontProperty(fontpath, font):
"""
A function for populating a :class:`FontKey` instance by
extracting information from the AFM font file.
@@ -507,37 +549,17 @@
# !!!! Incomplete
size_adjust = None
- return FontKey(name, style, variant, weight, stretch, size)
+ return FontEntry(fontpath, name, style, variant, weight, stretch, size)
-def add_filename(fontdict, prop, fname):
+def createFontList(fontfiles, fontext='ttf'):
"""
- A function to add a font file name to the font dictionary using
- the :class:`FontKey` properties. If a font property has no
- dictionary, then create it.
+ A function to create a font lookup list. The default is to create
+ a list of TrueType fonts. An AFM font list can optionally be
+ created.
"""
- try:
- size = str(float(prop.size))
- except ValueError:
- size = prop.size
- d = fontdict. \
- setdefault(prop.name, {}).\
- setdefault(prop.style, {}).\
- setdefault(prop.variant, {}).\
- setdefault(prop.weight, {}).\
- setdefault(prop.stretch, {})
- d[size] = fname
-
-
-def createFontDict(fontfiles, fontext='ttf'):
- """
- A function to create a font lookup dictionary. The default is to
- create a dictionary for TrueType fonts. An AFM font dictionary
- can optionally be created.
- """
-
- fontdict = {}
+ fontlist = []
# Add fonts from list of known font files.
seen = {}
for fpath in fontfiles:
@@ -559,7 +581,7 @@
except RuntimeError:
verbose.report("Could not parse font file %s"%fpath)
continue
- prop = afmFontProperty(font)
+ prop = afmFontProperty(fpath, font)
else:
try:
font = ft2font.FT2Font(str(fpath))
@@ -570,59 +592,12 @@
verbose.report("Cannot handle unicode filenames")
#print >> sys.stderr, 'Bad file is', fpath
continue
- try: prop = ttfFontProperty(font)
+ try: prop = ttfFontProperty(fpath, font)
except: continue
- add_filename(fontdict, prop, fpath)
- return fontdict
+ fontlist.append(prop)
+ return fontlist
-def setWeights(font):
- """
- A function to populate missing values in a font weight
- dictionary. This proceedure is necessary since the font finding
- algorithm always matches on the weight property.
- """
-
- # !!!! Not completely correct
- temp = font.copy()
- if len(temp) == 1:
- wgt = temp.keys()[0]
- for j in range(100, 1000, 100):
- font[j] = temp[wgt]
-
- if 400 in temp:
- for j in range(100, 1000, 100):
- font[j] = temp[400]
- if 500 in temp:
- if 400 in temp:
- for j in range(500, 1000, 100):
- font[j] = temp[500]
- else:
- for j in range(100, 1000, 100):
- font[j] = temp[500]
-
- if 300 in temp:
- for j in [100, 200, 300]:
- font[j] = temp[300]
- if 200 in temp:
- if 300 in temp:
- for j in [100, 200]:
- font[j] = temp[200]
- else:
- for j in [100, 200, 300]:
- font[j] = temp[200]
-
- if 800 in temp:
- for j in [600, 700, 800, 900]:
- font[j] = temp[800]
- if 700 in temp:
- if 800 in temp:
- for j in [600, 700]:
- font[j] = temp[700]
- else:
- for j in [600, 700, 800, 900]:
- font[j] = temp[700]
-
class FontProperties(object):
"""
A class for storing and manipulating font properties.
@@ -633,31 +608,33 @@
specification. The six properties are:
- family: A list of font names in decreasing order of priority.
- The last item is the default font name and is given the name
- of the font family, either 'serif', 'sans-serif', 'cursive',
- 'fantasy', or 'monospace'.
+ The items may include a generic font family name, either
+ 'serif', 'sans-serif', 'cursive', 'fantasy', or 'monospace'.
+ In that case, the actual font to be used will be looked up
+ from the associated rcParam in :file:`matplotlibrc`.
- style: Either 'normal', 'italic' or 'oblique'.
- variant: Either 'normal' or 'small-caps'.
- - stretch: Either an absolute value of 'ultra-condensed',
- 'extra- condensed', 'condensed', 'semi-condensed', 'normal',
- 'semi-expanded', 'expanded', 'extra-expanded' or
- 'ultra-expanded'; or a relative value of narrower or wider.
- This property is currently not implemented and is set to
- normal.
+ - stretch: A numeric value in the range 0-1000 or one of
+ 'ultra-condensed', 'extra-condensed', 'condensed',
+ 'semi-condensed', 'normal', 'semi-expanded', 'expanded',
+ 'extra-expanded' or 'ultra-expanded'
- - weight: A numeric value in the range 100, 200, 300, ..., 900.
+ - weight: A numeric value in the range 0-1000 or one of
+ 'ultralight', 'light', 'normal', 'regular', 'book', 'medium',
+ 'roman', 'semibold', 'demibold', 'demi', 'bold', 'heavy',
+ 'extra bold', 'black'
- - size: Either an absolute value of 'xx-small', 'x-small', 'small',
- 'medium', 'large', 'x-large', 'xx-large'; or a relative value
- of smaller or larger; or an absolute font size, e.g. 12;
- or 'scalable'.
+ - size: Either an relative value of 'xx-small', 'x-small',
+ 'small', 'medium', 'large', 'x-large', 'xx-large' or an
+ absolute font size, e.g. 12
- The default font property for TrueType fonts is::
+ The default font property for TrueType fonts (as specified in the
+ default :file:`matplotlibrc` file) is::
- sans-serif, normal, normal, normal, 400, scalable.
+ sans-serif, normal, normal, normal, normal, scalable.
Alternatively, a font may be specified using an absolute path to a
.ttf file, by using the *fname* kwarg.
@@ -672,9 +649,8 @@
<http://www.fontconfig.org/>`_ pattern, if it is the only argument
provided. See the documentation on `fontconfig patterns
<http://www.fontconfig.org/fontconfig-user.html>`_. This support
- does not require fontconfig to be installed or support for it to
- be enabled. We are merely borrowing its pattern syntax for use
- here.
+ does not require fontconfig to be installed. We are merely
+ borrowing its pattern syntax for use here.
Note that matplotlib's internal font manager and fontconfig use a
different algorithm to lookup fonts, so the results of the same pattern
@@ -760,6 +736,7 @@
if self._slant is None:
return rcParams['font.style']
return self._slant
+ get_slant = get_style
def get_variant(self):
"""
@@ -772,7 +749,10 @@
def get_weight(self):
"""
- Return the font weight.
+ Set the font weight. Options are: A numeric value in the
+ range 0-1000 or one of 'light', 'normal', 'regular', 'book',
+ 'medium', 'roman', 'semibold', 'demibold', 'demi', 'bold',
+ 'heavy', 'extra bold', 'black'
"""
if self._weight is None:
return rcParams['font.weight']
@@ -780,8 +760,9 @@
def get_stretch(self):
"""
- Return the font stretch or width. Options are: 'normal',
- 'narrow', 'condensed', or 'wide'.
+ Return the font stretch or width. Options are: 'ultra-condensed',
+ 'extra-condensed', 'condensed', 'semi-condensed', 'normal',
+ 'semi-expanded', 'expanded', 'extra-expanded', 'ultra-expanded'.
"""
if self._stretch is None:
return rcParams['font.stretch']
@@ -793,8 +774,17 @@
"""
if self._size is None:
return rcParams['font.size']
- return float(self._size)
+ return self._size
+ def get_size_in_points(self):
+ if self._size is not None:
+ try:
+ return float(self._size)
+ except ValueError:
+ pass
+ default_size = fontManager.get_default_size()
+ return default_size * font_scalings.get(self._size)
+
def get_file(self):
"""
Return the filename of the associated font.
@@ -849,46 +839,51 @@
def set_weight(self, weight):
"""
- Set the font weight.
+ Set the font weight. May be either a numeric value in the
+ range 0-1000 or one of 'ultralight', 'light', 'normal',
+ 'regular', 'book', 'medium', 'roman', 'semibold', 'demibold',
+ 'demi', 'bold', 'heavy', 'extra bold', 'black'
"""
- if (weight is not None and
- weight not in weight_dict and
- weight not in weight_dict.keys()):
- raise ValueError("weight is invalid")
+ if weight is not None:
+ try:
+ weight = int(weight)
+ if weight < 0 or weight > 1000:
+ raise ValueError()
+ except ValueError:
+ if weight not in weight_dict:
+ raise ValueError("weight is invalid")
self._weight = weight
def set_stretch(self, stretch):
"""
- Set the font stretch or width. Options are: 'normal', 'narrow',
- 'condensed', or 'wide'.
+ Set the font stretch or width. Options are: 'ultra-condensed',
+ 'extra-condensed', 'condensed', 'semi-condensed', 'normal',
+ 'semi-expanded', 'expanded', 'extra-expanded' or
+ 'ultra-expanded', or a numeric value in the range 0-1000.
"""
- if stretch not in ('normal', 'narrow', 'condensed', 'wide', None):
- raise ValueError("stretch is invalid")
+ if stretch is not None:
+ try:
+ stretch = int(stretch)
+ if stretch < 0 or stretch > 1000:
+ raise ValueError()
+ except ValueError:
+ if stretch not in stretch_dict:
+ raise ValueError("stretch is invalid")
self._stretch = stretch
def set_size(self, size):
"""
- Set the font size. Either an absolute value of 'xx-small',
- 'x-small', 'small', 'medium', 'large', 'x-large', 'xx-large';
- or a relative value of smaller or larger; or an absolute font
- size, e.g. 12; or 'scalable'.
+ Set the font size. Either an relative value of 'xx-small',
+ 'x-small', 'small', 'medium', 'large', 'x-large', 'xx-large'
+ or an absolute font size, e.g. 12.
"""
- if size is None:
- self._size = None
- else:
- if is_string_like(size):
- parent_size = fontManager.get_default_size()
- scaling = font_scalings.get(size)
- if scaling is not None:
- size = parent_size * scaling
- else:
- try:
- size = float(size)
- except ValueError:
- size = parent_size
- assert(type(size) in (int, float))
- self._size = size
- get_size_in_points = get_size
+ if size is not None:
+ try:
+ size = float(size)
+ except ValueError:
+ if size is not None and size not in font_scalings:
+ raise ValueError("size is invalid")
+ self._size = size
def set_file(self, file):
"""
@@ -958,24 +953,18 @@
class FontManager:
"""
On import, the :class:`FontManager` singleton instance creates a
- dictionary of TrueType fonts based on the font properties: name,
- style, variant, weight, stretch, and size. The :meth:`findfont`
- method searches this dictionary for a font file name that exactly
- matches the font properties of the specified text. If none is
- found, a default font is returned. By updating the dictionary
- with the properties of the found font, the font dictionary can act
- like a font cache.
-
- .. note:: The font lookup mechanism is very exact and brittle. If
- the *exact* font specified is not found, a default font is
- always returned. This should be improved in the future.
+ list of TrueType fonts based on the font properties: name, style,
+ variant, weight, stretch, and size. The :meth:`findfont` method
+ does a nearest neighbor search to find the font that most closely
+ matches the specification. If no good enough match is found, a
+ default font is returned.
"""
def __init__(self, size=None, weight='normal'):
self.__default_weight = weight
self.default_size = size
- paths = [os.path.join(rcParams['datapath'],'fonts','ttf'),
- os.path.join(rcParams['datapath'],'fonts','afm')]
+ paths = [os.path.join(rcParams['datapath'], 'fonts', 'ttf'),
+ os.path.join(rcParams['datapath'], 'fonts', 'afm')]
# Create list of font paths
for pathname in ['TTFPATH', 'AFMPATH']:
@@ -1002,7 +991,7 @@
# use anything
self.defaultFont = self.ttffiles[0]
- self.ttfdict = createFontDict(self.ttffiles)
+ self.ttflist = createFontList(self.ttffiles)
if rcParams['pdf.use14corefonts']:
# Load only the 14 PDF core fonts. These fonts do not need to be
@@ -1013,12 +1002,15 @@
# ZapfDingbats.
afmpath = os.path.join(rcParams['datapath'],'fonts','pdfcorefonts')
afmfiles = findSystemFonts(afmpath, fontext='afm')
- self.afmdict = createFontDict(afmfiles, fontext='afm')
+ self.afmlist = createFontList(afmfiles, fontext='afm')
else:
self.afmfiles = findSystemFonts(paths, fontext='afm') + \
findSystemFonts(fontext='afm')
- self.afmdict = createFontDict(self.afmfiles, fontext='afm')
+ self.afmlist = createFontList(self.afmfiles, fontext='afm')
+ self.ttf_lookup_cache = {}
+ self.afm_lookup_cache = {}
+
def get_default_weight(self):
"""
Return the default font weight.
@@ -1054,17 +1046,133 @@
# !!!! Needs implementing
raise NotImplementedError
+ # Each of the scoring functions below should return a value between
+ # 0.0 (perfect match) and 1.0 (terrible match)
+ def score_family(self, families, family2):
+ """
+ Returns a match score between the list of font families in
+ *families* and the font family name *family2*.
+
+ An exact match anywhere in the list returns 0.0.
+
+ A match by generic font name will return 0.1.
+
+ No match will return 1.0.
+ """
+ for i, family1 in enumerate(families):
+ if family1.lower() in font_family_aliases:
+ if family1 == 'sans':
+ family1 == 'sans-serif'
+ options = rcParams['font.' + family1]
+ if family2 in options:
+ idx = options.index(family2)
+ return 0.1
+ elif family1.lower() == family2.lower():
+ return 0.0
+ return 1.0
+
+ def score_style(self, style1, style2):
+ """
+ Returns a match score between *style1* and *style2*.
+
+ An exact match returns 0.0.
+
+ A match between 'italic' and 'oblique' returns 0.1.
+
+ No match returns 1.0.
+ """
+ if style1 == style2:
+ return 0.0
+ elif style1 in ('italic', 'oblique') and \
+ style2 in ('italic', 'oblique'):
+ return 0.1
+ return 1.0
+
+ def score_variant(self, variant1, variant2):
+ """
+ Returns a match score between *variant1* and *variant2*.
+
+ An exact match returns 0.0, otherwise 1.0.
+ """
+ if variant1 == variant2:
+ return 0.0
+ else:
+ return 1.0
+
+ def score_stretch(self, stretch1, stretch2):
+ """
+ Returns a match score between *stretch1* and *stretch2*.
+
+ The result is the absolute value of the difference between the
+ CSS numeric values of *stretch1* and *stretch2*, normalized
+ between 0.0 and 1.0.
+ """
+ try:
+ stretchval1 = int(stretch1)
+ except ValueError:
+ stretchval1 = stretch_dict.get(stretch1, 500)
+ try:
+ stretchval2 = int(stretch2)
+ except ValueError:
+ stretchval2 = stretch_dict.get(stretch2, 500)
+ return abs(stretchval1 - stretchval2) / 1000.0
+
+ def score_weight(self, weight1, weight2):
+ """
+ Returns a match score between *weight1* and *weight2*.
+
+ The result is the absolute value of the difference between the
+ CSS numeric values of *weight1* and *weight2*, normalized
+ between 0.0 and 1.0.
+ """
+ try:
+ weightval1 = int(weight1)
+ except ValueError:
+ weightval1 = weight_dict.get(weight1, 500)
+ try:
+ weightval2 = int(weight2)
+ except ValueError:
+ weightval2 = weight_dict.get(weight2, 500)
+ return abs(weightval1 - weightval2) / 1000.0
+
+ def score_size(self, size1, size2):
+ """
+ Returns a match score between *size1* and *size2*.
+
+ If *size2* (the size specified in the font file) is 'scalable', this
+ function always returns 0.0, since any font size can be generated.
+
+ Otherwise, the result is the absolute distance between *size1* and
+ *size2*, normalized so that the usual range of font sizes (6pt -
+ 72pt) will lie between 0.0 and 1.0.
+ """
+ if size2 == 'scalable':
+ return 0.0
+ # Size value should have already been
+ try:
+ sizeval1 = float(size1)
+ except ValueError:
+ sizeval1 = self.default_size * font_scalings(size1)
+ try:
+ sizeval2 = float(size2)
+ except ValueError:
+ return 1.0
+ return abs(sizeval1 - sizeval2) / 72.0
+
def findfont(self, prop, fontext='ttf'):
"""
- Search the font dictionary for a font that exactly or closely
- matches the specified font properties. See the
- :class:`FontProperties` class for a description.
+ Search the font list for the font that most closely matches
+ the :class:`FontProperties` *prop*.
- The properties are searched in the following order: name,
- style, variant, weight, stretch, and size. The font weight
- always matches returning the closest weight, and the font size
- always matches for scalable fonts. An oblique style font will
- be used inplace of a missing italic style font if present.
+ :meth:`findfont` performs a nearest neighbor search. Each
+ font is given a similarity score to the target font
+ properties. The first font with the highest score is
+ returned. If no matches below a certain threshold are found,
+ the default font (usually Vera Sans) is returned.
+
+ The result is cached, so subsequent lookups don't have to
+ perform the O(n) nearest neighbor search.
+
See the `W3C Cascading Style Sheet, Level 1
<http://www.w3.org/TR/1998/REC-CSS2-19980512/>`_ documentation
for a description of the font finding algorithm.
@@ -1078,108 +1186,45 @@
return fname
if fontext == 'afm':
- fontdict = self.afmdict
+ font_cache = self.afm_lookup_cache
+ fontlist = self.afmlist
else:
- fontdict = self.ttfdict
+ font_cache = self.ttf_lookup_cache
+ fontlist = self.ttflist
- original_name = prop.get_family()[0]
- style = prop.get_style()
- variant = prop.get_variant()
- weight = weight_as_number(prop.get_weight())
- stretch = prop.get_stretch()
- size = str(prop.get_size_in_points())
+ cached = font_cache.get(prop)
+ if cached:
+ return cached
- def lookup_name(name):
- try:
- fname = fontdict[name][style][variant][weight][stretch][size]
- verbose.report('\tfindfont cached %(name)s, %(style)s,
%(variant)s, %(weight)s, %(stretch)s, %(size)s'%locals(), 'debug')
- verbose.report('findfont returning %s'%fname, 'debug')
- return fname
- except KeyError:
- pass
+ best_score = 1e64
+ best_font = None
+ for font in fontlist:
+ # Matching family should have highest priority, so it is multiplied
+ # by 10.0
+ score = \
+ self.score_family(prop.get_family(), font.name) * 10.0 + \
+ self.score_style(prop.get_style(), font.style) + \
+ self.score_variant(prop.get_variant(), font.variant) + \
+ self.score_weight(prop.get_weight(), font.weight) + \
+ self.score_stretch(prop.get_stretch(), font.stretch) + \
+ self.score_size(prop.get_size(), font.size)
+ if score < best_score:
+ best_score = score
+ best_font = font
- fname = None
- font = fontdict
- if name in font:
- font = font[name]
- else:
- verbose.report('\tfindfont failed %(name)s'%locals(), 'debug')
- return None
+ if best_font is None or best_score > 10.0:
+ verbose.report('findfont: Could not match %s. Returning %s' %
+ (prop, self.defaultFont))
+ result = self.defaultFont
+ else:
+ verbose.report('findfont: Matching %s to %s (%s) with score of %f'
%
+ (prop, best_font.name, best_font.fname, best_score))
+ result = best_font.fname
- if style in font:
- font = font[style]
- elif style == 'italic' and 'oblique' in font:
- font = font['oblique']
- elif style == 'oblique' and 'italic' in font:
- font = font['italic']
- else:
- verbose.report('\tfindfont failed %(name)s,
%(style)s'%locals(), 'debug')
- return None
+ font_cache[prop] = result
+ return result
- if variant in font:
- font = font[variant]
- else:
- verbose.report('\tfindfont failed %(name)s, %(style)s,
%(variant)s'%locals(), 'debug')
- return None
- if weight not in font:
- setWeights(font)
- if weight not in font:
- return None
- font = font[weight]
-
- if stretch in font:
- stretch_font = font[stretch]
- if 'scalable' in stretch_font:
- fname = stretch_font['scalable']
- elif size in stretch_font:
- fname = stretch_font[size]
-
- if fname is None:
- for val in font.values():
- if 'scalable' in val:
- fname = val['scalable']
- break
-
- if fname is None:
- for val in font.values():
- if size in val:
- fname = val[size]
- break
-
- if fname is None:
- verbose.report('\tfindfont failed %(name)s, %(style)s,
%(variant)s %(weight)s, %(stretch)s'%locals(), 'debug')
- else:
- fontkey = FontKey(",".join(prop.get_family()), style, variant,
weight, stretch, size)
- add_filename(fontdict, fontkey, fname)
- verbose.report('\tfindfont found %(name)s, %(style)s,
%(variant)s %(weight)s, %(stretch)s, %(size)s'%locals(), 'debug')
- verbose.report('findfont returning %s'%fname, 'debug')
- return fname
-
- font_family_aliases = set(['serif', 'sans-serif', 'cursive',
- 'fantasy', 'monospace', 'sans'])
-
- for name in prop.get_family():
- if name in font_family_aliases:
- if name == 'sans':
- name = 'sans-serif'
- for name2 in rcParams['font.' + name]:
- fname = lookup_name(name2)
- if fname:
- break
- else:
- fname = lookup_name(name)
- if fname:
- break
-
- if not fname:
- fontkey = FontKey(",".join(prop.get_family()), style, variant,
weight, stretch, size)
- add_filename(fontdict, fontkey, self.defaultFont)
- verbose.report('Could not match %s, %s, %s. Returning %s' %
(name, style, weight, self.defaultFont))
- return self.defaultFont
- return fname
-
-
_is_opentype_cff_font_cache = {}
def is_opentype_cff_font(filename):
"""
@@ -1232,7 +1277,7 @@
return result
else:
- _fmcache = os.path.join(get_configdir(), 'fontManager.cache')
+ _fmcache = os.path.join(get_configdir(), 'fontList.cache')
fontManager = None
Modified: trunk/matplotlib/lib/matplotlib/fontconfig_pattern.py
===================================================================
--- trunk/matplotlib/lib/matplotlib/fontconfig_pattern.py 2008-10-28
12:51:39 UTC (rev 6341)
+++ trunk/matplotlib/lib/matplotlib/fontconfig_pattern.py 2008-10-28
18:10:51 UTC (rev 6342)
@@ -178,5 +178,4 @@
if val != []:
val = ','.join(val)
props.append(":%s=%s" % (key, val))
- print parse_fontconfig_pattern(''.join(props))
return ''.join(props)
Modified: trunk/matplotlib/lib/matplotlib/text.py
===================================================================
--- trunk/matplotlib/lib/matplotlib/text.py 2008-10-28 12:51:39 UTC (rev
6341)
+++ trunk/matplotlib/lib/matplotlib/text.py 2008-10-28 18:10:51 UTC (rev
6342)
@@ -445,9 +445,17 @@
"Return the :class:`~font_manager.FontProperties` object"
return self._fontproperties
+ def get_family(self):
+ "Return the list of font families used for font lookup"
+ return self._fontproperties.get_family()
+
+ def get_fontfamily(self):
+ 'alias for get_family'
+ return self.get_family()
+
def get_name(self):
"Return the font name as string"
- return self._fontproperties.get_family()[-1] # temporary hack.
+ return self._fontproperties.get_name()
def get_style(self):
"Return the font style as string"
@@ -457,26 +465,42 @@
"Return the font size as integer"
return self._fontproperties.get_size_in_points()
+ def get_variant(self):
+ "Return the font variant as a string"
+ return self._fontproperties.get_variant()
+
+ def get_fontvariant(self):
+ 'alias for get_variant'
+ return self.get_variant()
+
def get_weight(self):
- "Get the font weight as string"
+ "Get the font weight as string or number"
return self._fontproperties.get_weight()
def get_fontname(self):
'alias for get_name'
- return self._fontproperties.get_family()[-1] # temporary hack.
+ return self.get_name()
def get_fontstyle(self):
'alias for get_style'
- return self._fontproperties.get_style()
+ return self.get_style()
def get_fontsize(self):
'alias for get_size'
- return self._fontproperties.get_size_in_points()
+ return self.get_size()
def get_fontweight(self):
'alias for get_weight'
- return self._fontproperties.get_weight()
+ return self.get_weight()
+ def get_stretch(self):
+ 'Get the font stretch as a string or number'
+ return self._fontproperties.get_stretch()
+
+ def get_fontstretch(self):
+ 'alias for get_stretch'
+ return self.get_stretch()
+
def get_ha(self):
'alias for get_horizontalalignment'
return self.get_horizontalalignment()
@@ -645,35 +669,35 @@
def set_family(self, fontname):
"""
- Set the font family
+ Set the font family. May be either a single string, or a list
+ of strings in decreasing priority. Each string may be either
+ a real font name or a generic font class name. If the latter,
+ the specific font names will be looked up in the
+ :file:`matplotlibrc` file.
- ACCEPTS: [ 'serif' | 'sans-serif' | 'cursive' | 'fantasy' |
'monospace' ]
+ ACCEPTS: [ FONTNAME | 'serif' | 'sans-serif' | 'cursive' | 'fantasy' |
'monospace' ]
"""
self._fontproperties.set_family(fontname)
def set_variant(self, variant):
"""
- Set the font variant, eg,
+ Set the font variant, either 'normal' or 'small-caps'.
ACCEPTS: [ 'normal' | 'small-caps' ]
"""
self._fontproperties.set_variant(variant)
def set_name(self, fontname):
- """
- Set the font name,
+ """alias for set_family"""
+ return self.set_family(fontname)
- ACCEPTS: string eg, ['Sans' | 'Courier' | 'Helvetica' ...]
- """
- self._fontproperties.set_family(fontname)
-
def set_fontname(self, fontname):
- 'alias for set_name'
+ """alias for set_family"""
self.set_family(fontname)
def set_style(self, fontstyle):
"""
- Set the font style
+ Set the font style.
ACCEPTS: [ 'normal' | 'italic' | 'oblique']
"""
@@ -681,33 +705,45 @@
def set_fontstyle(self, fontstyle):
'alias for set_style'
- self._fontproperties.set_style(fontstyle)
+ return self.set_style(fontstyle)
def set_size(self, fontsize):
"""
- Set the font size, eg., 8, 10, 12, 14...
+ Set the font size. May be either a size string, relative to
+ the default font size, or an absolute font size in points.
- ACCEPTS: [ size in points | relative size eg 'smaller', 'x-large' ]
+ ACCEPTS: [ size in points | 'xx-small' | 'x-small' | 'small' |
'medium' | 'large' | 'x-large' | 'xx-large' ]
"""
self._fontproperties.set_size(fontsize)
def set_fontsize(self, fontsize):
'alias for set_size'
- self._fontproperties.set_size(fontsize)
+ return self.set_size(fontsize)
+ def set_weight(self, weight):
+ """
+ Set the font weight.
+
+ ACCEPTS: [ a numeric value in range 0-1000 | 'ultralight' | 'light' |
'normal' | 'regular' | 'book' | 'medium' | 'roman' | 'semibold' | 'demibold' |
'demi' | 'bold' | 'heavy' | 'extra bold' | 'black' ]
+ """
+ self._fontproperties.set_weight(weight)
+
def set_fontweight(self, weight):
'alias for set_weight'
- self._fontproperties.set_weight(weight)
+ return self.set_weight(weight)
- def set_weight(self, weight):
+ def set_stretch(self, stretch):
"""
- Set the font weight
+ Set the font stretch (horizontal condensation or expansion).
- ACCEPTS: [ 'normal' | 'bold' | 'heavy' | 'light' | 'ultrabold' |
- 'ultralight']
+ ACCEPTS: [ a numeric value in range 0-1000 | 'ultra-condensed' |
'extra-condensed' | 'condensed' | 'semi-condensed' | 'normal' | 'semi-expanded'
| 'expanded' | 'extra-expanded' | 'ultra-expanded' ]
"""
- self._fontproperties.set_weight(weight)
+ self._fontproperties.set_stretch(stretch)
+ def set_fontstretch(self, stretch):
+ 'alias for set_stretch'
+ return self.set_stretch(stretch)
+
def set_position(self, xy):
"""
Set the (*x*, *y*) position of the text
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