Text::Layout::FontConfig(3pm)

1Text::Layout::FontConfiUgs(e3r)Contributed Perl DocumentTaetxito:n:Layout::FontConfig(3)
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NAME

6       Text::Layout::FontConfig - Pango style font description for
7       Text::Layout
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SYNOPSIS

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.
56
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           •   "underline_thickness", "underline_position" - Overrides the
64               font specified or calculated values for underline thickness
65               and/or position.  This may improve results for some fonts.
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67           •   "strikeline_thickness", "strikeline_position" - Overrides the
68               font specified or calculated values for strikeline thickness
69               and/or position.  This may improve results for some fonts.
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71               Note that strikeline thickness will default to underline
72               thickness, if set.
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74           •   "overline_thickness", "overline_position" - Overrides the font
75               specified or calculated values for overline thickness and/or
76               position.
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78               This may improve results for some fonts.
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80               Note that overline thickness will default to underline
81               thickness, if set.
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83       add_fontdirs( @dirs )
84           Adds one or more file paths to be searched for font files.
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86       register_aliases( $family, $aliases, ... )
87           Adds aliases for existing font families.
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89           Multiple aliases can be specified, e.g.
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91               $layout->register_aliases( "times", "serif, default" );
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93           or
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95               $layout->register_aliases( "times", "serif", "default" );
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97       register_corefonts( $noaliases )
98           This is a convenience method that registers all built-in corefonts.
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100           Aliases for families "serif", "sans", and "monospace" are added
101           unless $noaliases is specified.
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103           You do not need to call this method if you provide your own font
104           registrations.
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106       find_font( $family, $style, $weight )
107           Returns a font descriptor based on the given family, style and
108           weight.
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110           On Linux, fallback using fontconfig.
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112       from_string( $description )
113           Returns a font descriptor using a Pango-style font description,
114           e.g.  "Sans Italic 14".
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116           On Linux, fallback using fontconfig.
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118       parse( $description )
119           Parses a Pango-style font description and returns a hash ref with
120           keys "family", "style", "weight", and "size".
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122           Unspecified items are returned as empty strings or, in the case of
123           "size", zero.
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125       from_filename( $filename )
126           Returns a font descriptor from a filename. Tries to infer Pango
127           data from the name.
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AUTHOR

133       Johan Vromans, "<JV at CPAN dot org>"
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SUPPORT

136       This module is part of <Text::Layout>.
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138       Development takes place on GitHub:
139       <https://github.com/sciurius/perl-Text-Layout>.
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141       You can find documentation for this module with the perldoc command.
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143         perldoc Text::Layout::FontConfig
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145       Please report any bugs or feature requests using the issue tracker for
146       Text::Layout on GitHub.
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LICENSE

149       See Text::Layout, Text::Layout::FontDescriptor, HarfBuzz::Shaper.
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153perl v5.34.0                      2022-02-04       Text::Layout::FontConfig(3)

NAME

SYNOPSIS

SEE ALSO

AUTHOR

SUPPORT

LICENSE