Proprietà carattere

Questo esempio elenca gli attributi di un FT2Fontoggetto, che descrivono le proprietà globali dei caratteri. Per le metriche dei singoli caratteri, utilizzare l' Glyph oggetto, come restituito da load_char.

Num faces:   1
Num glyphs:  5343
Family name: DejaVu Sans
Style name:  Oblique
PS name:     DejaVuSans-Oblique
Num fixed:   0
Bbox:                (-2080, -717, 3398, 2187)
EM:                  2048
Ascender:            1901
Descender:           -483
Height:              2384
Max adv width:       3461
Max adv height:      2384
Underline pos:       -175
Underline thickness: 90
Italic:           True
Bold:             False
Scalable:         True
Fixed sizes:      False
Fixed width:      False
SFNT:             False
Horizontal:       False
Vertical:         False
Kerning:          False
Fast glyphs:      False
Multiple masters: False
Glyph names:      False
External stream:  False

import os

import matplotlib
import matplotlib.ft2font as ft


font = ft.FT2Font(
    # Use a font shipped with Matplotlib.
    os.path.join(matplotlib.get_data_path(),
                 'fonts/ttf/DejaVuSans-Oblique.ttf'))

print('Num faces:  ', font.num_faces)        # number of faces in file
print('Num glyphs: ', font.num_glyphs)       # number of glyphs in the face
print('Family name:', font.family_name)      # face family name
print('Style name: ', font.style_name)       # face style name
print('PS name:    ', font.postscript_name)  # the postscript name
print('Num fixed:  ', font.num_fixed_sizes)  # number of embedded bitmaps

# the following are only available if face.scalable
if font.scalable:
    # the face global bounding box (xmin, ymin, xmax, ymax)
    print('Bbox:               ', font.bbox)
    # number of font units covered by the EM
    print('EM:                 ', font.units_per_EM)
    # the ascender in 26.6 units
    print('Ascender:           ', font.ascender)
    # the descender in 26.6 units
    print('Descender:          ', font.descender)
    # the height in 26.6 units
    print('Height:             ', font.height)
    # maximum horizontal cursor advance
    print('Max adv width:      ', font.max_advance_width)
    # same for vertical layout
    print('Max adv height:     ', font.max_advance_height)
    # vertical position of the underline bar
    print('Underline pos:      ', font.underline_position)
    # vertical thickness of the underline
    print('Underline thickness:', font.underline_thickness)

for style in ('Italic',
              'Bold',
              'Scalable',
              'Fixed sizes',
              'Fixed width',
              'SFNT',
              'Horizontal',
              'Vertical',
              'Kerning',
              'Fast glyphs',
              'Multiple masters',
              'Glyph names',
              'External stream'):
    bitpos = getattr(ft, style.replace(' ', '_').upper()) - 1
    print(f"{style+':':17}", bool(font.style_flags & (1 << bitpos)))