use HarfBuzz::Font;

#| A HarfBuzz FreeType face integrated font
unit class HarfBuzz::Font::FreeType:ver<0.0.8>
    is HarfBuzz::Font; #| HarfBuzz FreeType bound font data-type

use HarfBuzz::Raw;
use HarfBuzz::Font::FreeType::Raw;
use Font::FreeType::Face;
has Font::FreeType::Face:D $.ft-face is required;



head

use HarfBuzz::Font::FreeType;
use HarfBuzz::Shaper;
use Font::FreeType::Face;
my  Font::FreeType::Face $ft-face .= new: ...;
my  HarfBuzz::Font::FreeType() .= %( :$ft-face, :@features, :$size, :@scale );
my  HarfBuzz::Shaper $shaper .= new: :$font, :buf{ :text<Hello> };


This modules supports L<FreeType integration|https://harfbuzz.github.io/integration-freetype.html> for the HarfBuzz library.


It may be used to do L<HarfBuzz> shaping from a L<Font::FreeType> object.


Note that HarfBuzz can load OpenType and TrueType format fonts directly. The FreeType integration most likely to be useful for
other font formats, that can be loaded by [Font::FreeType](https://harfbuzz-raku.github.io/Font-FreeType-raku/).


This class inherits from L<HarfBuzz::Font> and has all its methods available.


para



submethod TWEAK(:$funcs = True, Num:D() :$size = 12e0, :@scale) {
    unless @scale {
        my uint32 $sc = ($!ft-face.units-per-EM * $size / 32).round;
        self.raw.set-scale: $sc, $sc;
    }

    $!ft-face.set-char-size($size);
    self.raw.ft-set-funcs()
        if $funcs;
}



code

    =begin code :lang<raku>
    use Font::FreeType::Face;
    use HarfBuzz::Font::FreeType;
    method new(
        Font::FreeType::Face:D :$ft-face!, # FreeeType face
        Bool  :$funcs = True,              # use FreeType functions
        Num() :$size = 12e0,               # font size (points)
        :@scale,                           # font scale [x, y?]
    ) returns HarfBuzz::Font::FreeType:D
    =end code



multi method COERCE(% ( Font::FreeType::Face:D :$ft-face!, :$file, :@features, |etc) --> HarfBuzz::Font::FreeType:D) {
    my hb_ft_font $raw = hb_ft_font::create($ft-face.raw);
    my HarfBuzz::Face() $face = $raw.get-face();
    self.new(:$raw, :$face, :$ft-face, :@features, |etc)
}


=begin code :lang<raku>
multi method COERCE(
    % (Font::FreeType::Face:D :$ft-face!, |etc)
) returns HarfBuzz::Font::FreeType:D
=end code


Coerces a FreeType integrated font, from an options hash.



method raw(--> hb_ft_font) handles <ft-set-load-flags ft-get-load-flags ft-font-has-changed> {
    callsame();
}

#| Get or set the FreeType load flags
method ft-load-flags is rw returns Int {
    Proxy.new(
        FETCH => { self.ft-get-load-flags },
        STORE => -> $, UInt:D $flags {
            self.ft-set-load-flags($flags);
        }
    );
}



root

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FreeType

Synopsis

Description

Methods

new

HarfBuzz::Font::FreeType v0.0.8

Authors

License

Dependencies

Test Dependencies

Provides

Documentation