1Text::Layout::FontConfiUgs(e3r)Contributed Perl DocumentTaetxito:n:Layout::FontConfig(3)
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6 Text::Layout::FontConfig - Pango style font description for
7 Text::Layout
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10 Font descriptors are strings that identify the characteristics of the
11 desired font. For example, "Sans Italic 20".
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13 The PDF context deals with physical fonts, e.g. built-in fonts like
14 "Times-Bold" and fonts loaded from font files like
15 "/usr/share/fonts/dejavu/DejaVuSans.ttf".
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17 To map font descriptions to physical fonts, these fonts must be
18 registered. This defines a font family, style, and weight for the font.
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20 Note that Text::Layout::FontConfig is a singleton. Creating objects
21 with new() will always return the same object.
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23 METHODS
24 new( [ atts... ] )
25 For convenience only. Text::Layout::FontConfig is a singleton.
26 Creating objects with new() will always return the same object.
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28 Attributes:
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30 corefonts
31 If true, a predefined set of font names (the PDF corefonts) is
32 registered.
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34 register_fonts( $font, $family, $style [ , $weight ] [ , $props ] )
35 Registers a font fmaily, style and weight for the given font.
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37 $font can be the name of a built-in font, or the name of a TrueType
38 or OpenType font file.
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40 $family is a font family name such as "normal", "sans", "serif", or
41 "monospace". It is possible to specify multiple family names, e.g.,
42 "times, serif".
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44 $style is the slant style, one of "normal", "oblique", or "italic".
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46 $weight is the font weight, like "normal", or "bold".
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48 For convenience, style combinations like "bolditalic" are allowed.
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50 A final hash reference can be passed to specify additional
51 properties for this font. Recognized properties are:
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53 · "shaping" - If set to a true value, this font will require text
54 shaping. This is required for fonts that deal with complex
55 glyph rendering and ligature handling like Devanagari.
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57 Text shaping requires module HarfBuzz::Shaper.
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59 · "interline" - If set to a true value, an alternative way to
60 determine glyph height is used. This may improve results for
61 some fonts.
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63 add_fontdirs( @dirs )
64 Adds one or more file paths to be searched for font files.
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66 register_aliases( $family, $aliases, ... )
67 Adds aliases for existing font families.
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69 Multiple aliases can be specified, e.g.
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71 $layout->register_aliases( "times", "serif, default" );
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73 or
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75 $layout->register_aliases( "times", "serif", "default" );
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77 register_corefonts( $noaliases )
78 This is a convenience method that registers all built-in corefonts.
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80 Aliases for families "serif", "sans", and "monospace" are added
81 unless $noaliases is specified.
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83 You do not need to call this method if you provide your own font
84 registrations.
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86 find_font( $family, $style, $weight )
87 Returns a font descriptor based on the given family, style and
88 weight.
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90 On Linux, fallback using fontconfig.
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92 from_string( $description )
93 Returns a font descriptor using a Pango-style font description,
94 e.g. "Sans Italic 14".
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96 On Linux, fallback using fontconfig.
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98 parse( $description )
99 Parses a Pango-style font description and returns a hash ref with
100 keys "family", "style", "weight", and "size".
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102 Unspecified items are returned as empty strings or, in the case of
103 "size", zero.
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105 from_filename( $filename )
106 Returns a font descriptor from a filename. Tries to infer Pango
107 data from the name.
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110 Text::Layout, Text::Layout::FontDescriptor.
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113 Johan Vromans, "<JV at CPAN dot org>"
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116 This module is part of <Text::Layout>.
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118 Development takes place on GitHub:
119 <https://github.com/sciurius/perl-Text-Layout>.
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121 You can find documentation for this module with the perldoc command.
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123 perldoc Text::Layout::FontConfig
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125 Please report any bugs or feature requests using the issue tracker for
126 Text::Layout on GitHub.
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129 See Text::Layout, Text::Layout::FontDescriptor, HarfBuzz::Shaper.
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133perl v5.32.0 2020-08-16 Text::Layout::FontConfig(3)