Module: NSWTopo::Font

Extended by:
Font
Includes:
Log
Included in:
Font
Defined in:
lib/nswtopo/font.rb,
lib/nswtopo/font/chrome.rb,
lib/nswtopo/font/generic.rb

Defined Under Namespace

Modules: Chrome, Generic

Constant Summary

Constants included from Log

Log::FAILURE, Log::NEUTRAL, Log::SUCCESS, Log::UPDATE

Instance Method Summary collapse

Methods included from Log

#log_abort, #log_neutral, #log_success, #log_update, #log_warn

Instance Method Details

#glyph_length(*args) ⇒ Object 



9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
 
# File 'lib/nswtopo/font.rb', line 9

def glyph_length(*args)
  chrome_path = Config["chrome"]
  case
  when !defined? PTY
    self.extend Generic
  when !chrome_path
    log_warn "chrome browser not configured - using generic font measurements"
    self.extend Generic
  else
    begin
      stdout, stderr, status = Open3.capture3 chrome_path, "--version"
      raise unless status.success?
      self.extend Chrome
    rescue Errno::ENOENT, RuntimeError
      log_warn "couldn't run chrome - using generic font measurements"
      self.extend Generic
    end
  end
  glyph_length *args
end

#in_two(string, attributes) ⇒ Object 



30
31
32
33
34
35
36
37
38
39
40
41
 
# File 'lib/nswtopo/font.rb', line 30

def in_two(string, attributes)
  words = string.split(string[?\n] || string[?/] || ?\s).map(&:strip)
  (1...words.size).map do |index|
    [words[0...index].join(?\s), words[index...words.size].join(?\s)]
  end.map do |lines|
    lines.map do |line|
      [line, glyph_length(line, attributes)]
    end
  end.min_by do |lines_widths|
    lines_widths.map(&:last).max
  end || [[words[0], glyph_length(words[0], attributes)]]
end