Class: ChemScanner::ChemDraw::FontTable

Inherits:
BaseNode
  • Object
show all
Defined in:
lib/chem_scanner/chem_draw/node/font_table.rb

Overview

CDX Graphic parser

Constant Summary

Constants included from BaseValue

BaseValue::ARROW_NOGO_CROSS, BaseValue::CDXML_ARROW_TYPE, BaseValue::CDXML_ATOM_EXTERNAL_CONNECTION_TYPE, BaseValue::CDXML_CDX_POINT, BaseValue::CDXML_GRAPHIC_TYPE, BaseValue::CDXML_LINE_TYPE, BaseValue::CDXML_NODE_TYPE, BaseValue::CDXML_ORBITAL_TYPE, BaseValue::CDXML_OVAL_TYPE, BaseValue::TEXT_ATTRIBUTES

Instance Attribute Summary collapse

Attributes inherited from BaseNode

#id, #parser, #parser_type, #polygon

Instance Method Summary collapse

Methods inherited from BaseNode

#assign_center, #bounding_box, #cdx_read, #cdxml_read, #center_x, #center_y, #get_tempid, #parse_node, #post_parse_node, #pre_parse_node, #set_cdx, #set_cdxml

Methods included from BaseValue

#binary_chunks, #cdx_styles, #cdx_text, #cdxml_text, #do_unhandled, #point_2d, #point_3d, #polygon_from_bb, #read_bounding_box, #read_ids, #read_int, #read_type, #read_value

Constructor Details

#initialize(parser_type, data) ⇒ FontTable

Returns a new instance of FontTable.



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# File 'lib/chem_scanner/chem_draw/node/font_table.rb', line 9

def initialize(parser_type, data)
  @parser_type = parser_type
  @data = data
end

Instance Attribute Details

#table ⇒ Object (readonly)

Returns the value of attribute table.



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# File 'lib/chem_scanner/chem_draw/node/font_table.rb', line 7

def table
  @table
end

Instance Method Details

#read ⇒ Object 



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# File 'lib/chem_scanner/chem_draw/node/font_table.rb', line 14

def read
  @parser_type == "cdx" ? read_cdx : read_cdxml
end

#read_cdx ⇒ Object 



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# File 'lib/chem_scanner/chem_draw/node/font_table.rb', line 18

def read_cdx
  @table = []
  run_count = read_int(@data[2, 2], true)

  iter = 4
  (1..run_count).each do
    font, length = read_cdx_font_attribute(iter)
    @table.push(font)
    iter += 6 + length
  end

  @table
end

#read_cdx_font_attribute(iter) ⇒ Object 



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# File 'lib/chem_scanner/chem_draw/node/font_table.rb', line 32

def read_cdx_font_attribute(iter)
  id = read_int(@data[iter, 2], true)
  charset = read_int(@data[iter + 2, 2], true)
  length = read_int(@data[iter + 4, 2], true)
  name = @data[iter + 6, length]

  [{ id: id, charset: charset, name: name }, length]
end

#read_cdxml ⇒ Object 



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# File 'lib/chem_scanner/chem_draw/node/font_table.rb', line 41

def read_cdxml
  @table = @data.element_children.each_with_object([]) do |font, table|
    next if font.name != "font"

    id = font.attr("id").to_i
    charset = font.attr("charset")
    name = font.attr("name")

    table.push(id: id, charset: charset, name: name)
  end
end