pixel-font-builder 0.0.53

A library that helps create pixel style fonts

Pixel Font Builder

A library that helps create pixel style fonts.

Installation

pip install pixel-font-builder

Usage

import shutil
from datetime import datetime

from examples import build_dir
from pixel_font_builder import FontBuilder, WeightName, SerifStyle, SlantStyle, WidthStyle, Glyph, opentype


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

    builder = FontBuilder()
    builder.font_metric.font_size = 16
    builder.font_metric.horizontal_layout.ascent = 14
    builder.font_metric.horizontal_layout.descent = -2
    builder.font_metric.vertical_layout.ascent = 8
    builder.font_metric.vertical_layout.descent = -8
    builder.font_metric.x_height = 7
    builder.font_metric.cap_height = 10
    builder.font_metric.underline_position = -2
    builder.font_metric.underline_thickness = 1
    builder.font_metric.strikeout_position = 6
    builder.font_metric.strikeout_thickness = 1

    builder.meta_info.version = '1.0.0'
    builder.meta_info.created_time = datetime.fromisoformat('2024-01-01T00:00:00Z')
    builder.meta_info.modified_time = builder.meta_info.created_time
    builder.meta_info.family_name = 'My Font'
    builder.meta_info.weight_name = WeightName.REGULAR
    builder.meta_info.serif_style = SerifStyle.SANS_SERIF
    builder.meta_info.slant_style = SlantStyle.NORMAL
    builder.meta_info.width_style = WidthStyle.MONOSPACED
    builder.meta_info.manufacturer = 'Pixel Font Studio'
    builder.meta_info.designer = 'TakWolf'
    builder.meta_info.description = 'A pixel font'
    builder.meta_info.copyright_info = 'Copyright (c) TakWolf'
    builder.meta_info.license_info = 'This Font Software is licensed under the SIL Open Font License, Version 1.1'
    builder.meta_info.vendor_url = 'https://github.com/TakWolf/pixel-font-builder'
    builder.meta_info.designer_url = 'https://takwolf.com'
    builder.meta_info.license_url = 'https://openfontlicense.org'

    builder.glyphs.append(Glyph(
        name='.notdef',
        horizontal_offset=(0, -2),
        advance_width=8,
        vertical_offset=(-4, 0),
        advance_height=16,
        bitmap=[
            [1, 1, 1, 1, 1, 1, 1, 1],
            [1, 0, 0, 0, 0, 0, 0, 1],
            [1, 0, 0, 0, 0, 0, 0, 1],
            [1, 0, 0, 0, 0, 0, 0, 1],
            [1, 0, 0, 0, 0, 0, 0, 1],
            [1, 0, 0, 0, 0, 0, 0, 1],
            [1, 0, 0, 0, 0, 0, 0, 1],
            [1, 0, 0, 0, 0, 0, 0, 1],
            [1, 0, 0, 0, 0, 0, 0, 1],
            [1, 0, 0, 0, 0, 0, 0, 1],
            [1, 0, 0, 0, 0, 0, 0, 1],
            [1, 0, 0, 0, 0, 0, 0, 1],
            [1, 0, 0, 0, 0, 0, 0, 1],
            [1, 0, 0, 0, 0, 0, 0, 1],
            [1, 0, 0, 0, 0, 0, 0, 1],
            [1, 1, 1, 1, 1, 1, 1, 1],
        ],
    ))
    builder.glyphs.append(Glyph(
        name='CAP_LETTER_A',
        horizontal_offset=(0, -2),
        advance_width=8,
        vertical_offset=(-4, 0),
        advance_height=16,
        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],
        ],
    ))

    builder.character_mapping.update({
        65: 'CAP_LETTER_A',
    })

    builder.save_otf(outputs_dir.joinpath('my-font.otf'))
    builder.save_otf(outputs_dir.joinpath('my-font.otf.woff'), flavor=opentype.Flavor.WOFF)
    builder.save_otf(outputs_dir.joinpath('my-font.otf.woff2'), flavor=opentype.Flavor.WOFF2)
    builder.save_ttf(outputs_dir.joinpath('my-font.ttf'))
    builder.save_ttf(outputs_dir.joinpath('my-font.ttf.woff'), flavor=opentype.Flavor.WOFF)
    builder.save_ttf(outputs_dir.joinpath('my-font.ttf.woff2'), flavor=opentype.Flavor.WOFF2)
    builder.save_ms_bitmap_ttf(outputs_dir.joinpath('my-font.ms.bitmap.ttf'))
    builder.save_otb(outputs_dir.joinpath('my-font.otb'))
    builder.save_dfont(outputs_dir.joinpath('my-font.dfont'))
    builder.save_bdf(outputs_dir.joinpath('my-font.bdf'))
    builder.save_pcf(outputs_dir.joinpath('my-font.pcf'))

    builder.meta_info.family_name = 'My Font SquareDot'
    builder.opentype_config.outlines_painter = opentype.SquareDotOutlinesPainter()
    builder.save_otf(outputs_dir.joinpath('my-font-square_dot.otf'))
    builder.save_otf(outputs_dir.joinpath('my-font-square_dot.otf.woff'), flavor=opentype.Flavor.WOFF)
    builder.save_otf(outputs_dir.joinpath('my-font-square_dot.otf.woff2'), flavor=opentype.Flavor.WOFF2)
    builder.save_ttf(outputs_dir.joinpath('my-font-square_dot.ttf'))
    builder.save_ttf(outputs_dir.joinpath('my-font-square_dot.ttf.woff'), flavor=opentype.Flavor.WOFF)
    builder.save_ttf(outputs_dir.joinpath('my-font-square_dot.ttf.woff2'), flavor=opentype.Flavor.WOFF2)

    builder.meta_info.family_name = 'My Font CircleDot'
    builder.opentype_config.outlines_painter = opentype.CircleDotOutlinesPainter()
    builder.save_otf(outputs_dir.joinpath('my-font-circle_dot.otf'))
    builder.save_otf(outputs_dir.joinpath('my-font-circle_dot.otf.woff'), flavor=opentype.Flavor.WOFF)
    builder.save_otf(outputs_dir.joinpath('my-font-circle_dot.otf.woff2'), flavor=opentype.Flavor.WOFF2)
    builder.save_ttf(outputs_dir.joinpath('my-font-circle_dot.ttf'))
    builder.save_ttf(outputs_dir.joinpath('my-font-circle_dot.ttf.woff'), flavor=opentype.Flavor.WOFF)
    builder.save_ttf(outputs_dir.joinpath('my-font-circle_dot.ttf.woff2'), flavor=opentype.Flavor.WOFF2)


if __name__ == '__main__':
    main()

Coordinate Systems

Use the same coordinate systems as OpenType.

Horizontal Layout

Vertical Layout

Supported Output Formats

Format	File Extension
OpenType	.otf, .otc
TrueType	.ttf, .ttc
WOFF File Format 1.0	.otf.woff, .ttf.woff
WOFF File Format 2.0	.otf.woff2, .ttf.woff2
Microsoft Bitmap Only SFNT	.ms.bitmap.ttf
X11 OpenType Bitmap	.otb
Macintosh Datafork TrueType	.dfont
Glyph Bitmap Distribution Format	.bdf
Portable Compiled Format	.pcf

Dependencies

• FontTools
• BdfFont - Python
• PcfFont - Python

References

• Microsoft - OpenType Specification
• FreeType Glyph Conventions - Glyph Metrics
• OpenType Feature File Specification
• FontForge - Several formats for bitmap only sfnts

License

MIT License