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# frozen_string_literal: true
# Prints a list of all of the glyphs that can be rendered by Adobe's built
# in fonts, along with their character widths and WinAnsi codes. Be sure
# to pass these glyphs as UTF-8, and Prawn will transcode them for you.
require_relative '../example_helper'
filename = File.basename(__FILE__).gsub('.rb', '.pdf')
Prawn::ManualBuilder::Example.generate(filename) do
font_size = 9.5
x = 0
y = bounds.top
fields = [
[20, :right], [8, :left], [12, :center], [30, :right], [8, :left],
[0, :left]
]
font 'Helvetica', size: font_size
start_new_page
Prawn::Encoding::WinAnsi::CHARACTERS.each_with_index do |name, index|
next if name == '.notdef'
y -= font_size
if y < font_size
y = bounds.top - font_size
x += 170
end
code = format('%<index>d.', index: index)
char = index.chr.force_encoding(::Encoding::Windows_1252)
width = 1000 * width_of(char, size: font_size) / font_size
size = format('%<width>d', width: width)
data = [code, nil, char, size, nil, name]
dx = x
fields.zip(data).each do |(total_width, align), field|
if field
width = width_of(field, size: font_size)
case align
when :left then offset = 0
when :right then offset = total_width - width
when :center then offset = (total_width - width) / 2
end
text_box(
field.dup.force_encoding('windows-1252').encode('UTF-8'),
at: [dx + offset, y]
)
end
dx += total_width
end
end
end
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