Contents

# encoding: utf-8
#
# Rotating text is best avoided on free flowing text, so this example
# will only use the <code>text_box</code> method as we can have much more
# control over its output.
#
# To rotate text all we need to do is use the <code>:rotate</code> option
# passing an angle in degrees and an optional <code>:rotate_around</code> to
# indicate the origin of the rotation (the default is <code>:upper_left</code>).
#
require File.expand_path(File.join(File.dirname(__FILE__),
                                   %w[.. example_helper]))

filename = File.basename(__FILE__).gsub('.rb', '.pdf')
Prawn::ManualBuilder::Example.generate(filename) do
  width  = 100
  height = 60
  angle  = 30
  x      = 200
  y      = cursor - 30

  stroke_rectangle [0, y], width, height
  text_box("This text was not rotated",
           :at => [0, y], :width => width, :height => height)

  stroke_rectangle [0, y - 100], width, height
  text_box("This text was rotated around the center",
           :at => [0, y - 100], :width => width, :height => height,
           :rotate => angle, :rotate_around => :center)

  [:lower_left, :upper_left,
   :lower_right, :upper_right].each_with_index do |corner, index|
    y = y - 100 if index == 2
    stroke_rectangle [x + (index % 2) * 200, y], width, height
    text_box("This text was rotated around the #{corner} corner.",
             :at     => [x + (index % 2) * 200, y],
             :width  => width,
             :height => height,
             :rotate => angle,
             :rotate_around => corner)
  end
end

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
prawn-2.1.0	manual/text/rotation.rb
prawn-2.0.2	manual/text/rotation.rb