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# encoding: utf-8
#
# Normally when we provide the top left corner of a bounding box we
# express the coordinates are relative to the margin box. This is not the
# case when we have nested bounding boxes. Once nested the inner bounding box
# coordinates are relative to the outter bounding box.
#
# This example shows some nested bounding boxes with fixed and stretchy heights.
# Note how the <code>cursor</code> method returns coordinates relative to
# the current bounding box.
#
require File.expand_path(File.join(File.dirname(__FILE__),
%w[.. example_helper]))
filename = File.basename(__FILE__).gsub('.rb', '.pdf')
Prawn::Example.generate(filename) do
def box_content(string)
text "#{string} height"
transparent(0.5) { stroke_bounds }
end
gap = 20
bounding_box([50, cursor], :width => 400, :height => 200) do
box_content("Fixed")
bounding_box([gap, cursor - gap], :width => 300) do
text "Stretchy height"
bounding_box([gap, bounds.top - gap], :width => 100) do
text "Stretchy height"
transparent(0.5) { dash(1); stroke_bounds; undash }
end
bounding_box([gap * 7, bounds.top - gap], :width => 100, :height => 50) do
box_content("Fixed")
end
transparent(0.5) { dash(1); stroke_bounds; undash }
end
bounding_box([gap, cursor - gap], :width => 300, :height => 50) do
box_content("Fixed")
end
end
end
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