Class: HexaPDF::Type::FontType3

Inherits:
FontSimple show all
Defined in:
lib/hexapdf/type/font_type3.rb

Overview

Represents a Type 3 font.

Note: We assume the /FontMatrix is only used for scaling, i.e. of the form [x 0 0 +/-x 0 0]. If it is of a different form, things won’t work correctly. This will be handled once such a case is found.

See: PDF2.0 s9.6.4

Constant Summary

Constants included from DictionaryFields

DictionaryFields::Boolean, DictionaryFields::PDFByteString, DictionaryFields::PDFDate

Instance Attribute Summary

Attributes inherited from Object

#data, #document, #must_be_indirect

Instance Method Summary collapse

Methods inherited from FontSimple

#decode, #encoding, #font_descriptor, #symbolic?, #to_utf8, #width, #word_spacing_applicable?, #writing_mode

Methods inherited from Font

#embedded?, #font_file, #font_wrapper, #font_wrapper=, #must_be_indirect?, #to_utf8

Methods inherited from Dictionary

#[], #[]=, define_field, define_type, #delete, #each, each_field, #empty?, field, #key?, #to_hash, type, #type

Methods inherited from Object

#<=>, #==, #cache, #cached?, #clear_cache, deep_copy, #deep_copy, #document?, #eql?, field, #gen, #gen=, #hash, #indirect?, #initialize, #inspect, make_direct, #must_be_indirect?, #null?, #oid, #oid=, #type, #validate, #value, #value=

Constructor Details

This class inherits a constructor from HexaPDF::Object

Instance Method Details

#bounding_box ⇒ Object

Returns the bounding box of the font.



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# File 'lib/hexapdf/type/font_type3.rb', line 58

def bounding_box
  matrix = self[:FontMatrix]
  bbox = self[:FontBBox].value
  if matrix[3] < 0 # Some writers invert the y-axis
    bbox = bbox.dup
    bbox[1], bbox[3] = -bbox[3], -bbox[1]
  end
  bbox
end

#glyph_scaling_factor ⇒ Object

Returns the glyph scaling factor for transforming from glyph space to text space.



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# File 'lib/hexapdf/type/font_type3.rb', line 69

def glyph_scaling_factor
  self[:FontMatrix][0]
end