bdffont

Bdffont

BDFFont est une bibliothèque pour manipuler les polices de format de distribution Bitmap Glyph Bitmap (BDF).

Installation

pip install bdffont

Usage

Charger

 import shutil

from bdffont import BdfFont
from examples import assets_dir , build_dir


def main ():
    outputs_dir = build_dir . joinpath ( 'load' )
    if outputs_dir . exists ():
        shutil . rmtree ( outputs_dir )
    outputs_dir . mkdir ( parents = True )

    font = BdfFont . load ( assets_dir . joinpath ( 'unifont' , 'unifont-16.0.02.bdf' ))
    print ( f'name: { font . name } ' )
    print ( f'size: { font . point_size } ' )
    print ( f'ascent: { font . properties . font_ascent } ' )
    print ( f'descent: { font . properties . font_descent } ' )
    print ()
    for glyph in font . glyphs :
        print ( f'char: { chr ( glyph . encoding ) } ( { glyph . encoding :04X } )' )
        print ( f'glyph_name: { glyph . name } ' )
        print ( f'advance_width: { glyph . device_width_x } ' )
        print ( f'dimensions: { glyph . dimensions } ' )
        print ( f'origin: { glyph . origin } ' )
        for bitmap_row in glyph . bitmap :
            text = '' . join ( '  ' if alpha == 0 else '██' for alpha in bitmap_row )
            print ( f' { text } *' )
        print ()
    font . save ( outputs_dir . joinpath ( 'unifont-16.0.02.bdf' ))


if __name__ == '__main__' :
    main ()

Créer

 import shutil

from bdffont import BdfFont , BdfGlyph
from examples import build_dir


def main ():
    outputs_dir = build_dir . joinpath ( 'create' )
    if outputs_dir . exists ():
        shutil . rmtree ( outputs_dir )
    outputs_dir . mkdir ( parents = True )

    font = BdfFont (
        point_size = 16 ,
        resolution = ( 75 , 75 ),
        bounding_box = ( 16 , 16 , 0 , - 2 ),
    )

    font . glyphs . append ( BdfGlyph (
        name = 'A' ,
        encoding = ord ( 'A' ),
        scalable_width = ( 500 , 0 ),
        device_width = ( 8 , 0 ),
        bounding_box = ( 8 , 16 , 0 , - 2 ),
        bitmap = [
            [ 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 ],
            [ 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 ],
            [ 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 ],
            [ 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 ],
            [ 0 , 0 , 0 , 1 , 1 , 0 , 0 , 0 ],
            [ 0 , 0 , 1 , 0 , 0 , 1 , 0 , 0 ],
            [ 0 , 0 , 1 , 0 , 0 , 1 , 0 , 0 ],
            [ 0 , 1 , 0 , 0 , 0 , 0 , 1 , 0 ],
            [ 0 , 1 , 0 , 0 , 0 , 0 , 1 , 0 ],
            [ 0 , 1 , 1 , 1 , 1 , 1 , 1 , 0 ],
            [ 0 , 1 , 0 , 0 , 0 , 0 , 1 , 0 ],
            [ 0 , 1 , 0 , 0 , 0 , 0 , 1 , 0 ],
            [ 0 , 1 , 0 , 0 , 0 , 0 , 1 , 0 ],
            [ 0 , 1 , 0 , 0 , 0 , 0 , 1 , 0 ],
            [ 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 ],
            [ 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 ],
        ],
    ))

    font . properties . foundry = 'Pixel Font Studio'
    font . properties . family_name = 'Demo Pixel'
    font . properties . weight_name = 'Medium'
    font . properties . slant = 'R'
    font . properties . setwidth_name = 'Normal'
    font . properties . add_style_name = 'Sans Serif'
    font . properties . pixel_size = font . point_size
    font . properties . point_size = font . point_size * 10
    font . properties . resolution_x = font . resolution_x
    font . properties . resolution_y = font . resolution_y
    font . properties . spacing = 'P'
    font . properties . average_width = round ( sum ([ glyph . device_width_x * 10 for glyph in font . glyphs ]) / len ( font . glyphs ))
    font . properties . charset_registry = 'ISO10646'
    font . properties . charset_encoding = '1'
    font . generate_name_as_xlfd ()

    font . properties . default_char = - 1
    font . properties . font_ascent = 14
    font . properties . font_descent = 2
    font . properties . x_height = 5
    font . properties . cap_height = 7

    font . properties . font_version = '1.0.0'
    font . properties . copyright = 'Copyright (c) TakWolf'

    font . save ( outputs_dir . joinpath ( 'my-font.bdf' ))


if __name__ == '__main__' :
    main ()

Tester les polices

• Glyphes GNU Unifont
• 美咲フォント / Misaki

Références

• X11 - Format de distribution Bitmap - Version 2.1
• Adobe - Spécification du format de distribution Bitmap Glyph (BDF) - Version 2.2
• X LOGICAL DESCONS Description Conventions - X Consortium Standard

Licence

Sous la licence du MIT.