[Raku PDF Project] / [Font-FreeType Module]

Font-FreeType-raku - Raku binding to the FreeType font library (version 2)

Classes in this Distribution

• Font::FreeType - Font Library Instance

• Font::FreeType::Face - Font Properties

• Font::FreeType::Glyph - Glyph properties

• Font::FreeType::GlyphImage - Glyph outlines and bitmaps

• Font::FreeType::Outline - Scalable glyph images

• Font::FreeType::BitMap - Rendered glyph bitmaps

• Font::FreeType::CharMap - Font Encodings

• Font::FreeType::SizeMetrics - Scaled font metrics

• Font::FreeType::Raw - Bindings to the FreeType library

• Font::FreeType::Raw::Defs - Data types and enumerations

• Font::FreeType::Raw::TT_Sfnt - Direct access to raw font tables

Synopsis

use Font::FreeType;

my Font::FreeType $freetype .= new;
my $face = $freetype.face('t/fonts/Vera.ttf');

$face.set-font-size(12, 12, 72, 72);
for $face.glyph-images('ABC') {
    my $outline = .outline;
    my $bitmap = .bitmap;
    # ...
}

Description

This module allows Raku programs to conveniently read information from font files. All the font access is done through the FreeType2 library, which supports many formats. It can render images of characters with high-quality hinting and anti-aliasing, extract metrics information, and extract the outlines of characters in scalable formats like TrueType.

Please see Font::FreeType.

Scripts

font-say

font-say [--resolution=<Int>] [--pixels=<Int] [--kern] [--hint] [--ascend=<Int>] [--descend=<Int>] [--char-spacing=<Int>] [--word-spacing=<Int>] [--bold=<Int>] [--mode=<Mode> (lcd lcd-v light mono normal)] [--verbose] <font-file> <text>

This script displays text as bitmapped characters, using a given font. For example:

% bin/font-say --hint --pixels=14 t/fonts/Vera.ttf 'FreeType!'
#######                            ##########                              ##
##                                     ##                                  ##
##      #####   ######    ######       ##    ###   ##  #######    ######   ##
##      ####    #######   #######      ##    ###  ###  #######    #######  ##
######  ##     ###   ##  ###   ##      ##     ##  ###  ##   ##   ###   ##  ##
##      ##     ########  ########      ##     ### ##   ##   ###  ########  ##
##      ##     ###       ###           ##      #####   ##   ###  ###
##      ##     ###       ###           ##      ####    ##   ##   ###
##      ##      #######   #######      ##      ####    #######    #######  ##
##      ##       ######    ######      ##       ###    #######     ######  ##
                                                ##     ##
                                               ###     ##
                                              ###      ##

Install

Font::FreeType depends on the freetype native library, so you must install that prior to using this module.

Debian/Ubuntu Linux

sudo apt-get install freetype6-dev

Alpine Linux

doas apk add freetype-dev

Max OS X

brew update
brew install freetype

Windows

This module uses prebuilt DLLs on Windows. No additional configuration is needed.

Testing

To checkout and test this module from the Git repository:

$ git checkout https://github.com/pdf-raku/Font-FreeType-raku.git
$ zef build .  # -OR- raku Build.rakumod
$ prove -e'raku -I .' -v t

Authors

Geoff Richards [email protected]

Ivan Baidakou [email protected]

David Warring [email protected] (Raku Port)

Copyright

Copyright 2004, Geoff Richards.

Ported from Perl to Raku by David Warring [email protected] Copyright 2017.

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.