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#!/usr/bin/env ruby
top = File.expand_path(File.join(File.dirname(__FILE__), ".."))
$LOAD_PATH.unshift File.join(top, "ext", "cairo")
$LOAD_PATH.unshift File.join(top, "lib")
require 'cairo'
margin = 10
rectangle_width = 300
rectangle_height = 100
width = rectangle_width + 2 * margin
height = (rectangle_height + 2 * margin) * 3
surface = Cairo::ImageSurface.new(width, height)
context = Cairo::Context.new(surface)
context.set_source_color(:white)
context.paint
module Cairo
module Color
GRAY30 = Cairo::Color::RGB.new(0.3, 0.3, 0.3)
end
end
context.set_source_color(:gray30)
context.rectangle(margin, margin, rectangle_width, rectangle_height)
context.fill
context.pseudo_blur do
context.set_source_color(:gray30)
context.rectangle(margin, rectangle_height + 2 * margin + margin / 2,
rectangle_width, rectangle_height)
context.fill
end
context.pseudo_blur(5) do
context.set_source_color(:gray30)
context.rectangle(margin, (rectangle_height + 2 * margin) * 2 + margin / 2,
rectangle_width, rectangle_height)
context.fill
end
surface.write_to_png("blur.png")
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