[cairo-commit] rcairo/samples blur.rb,NONE,1.1

[Kouhei Sutou]

Committed by: kou

Update of /cvs/cairo/rcairo/samples
In directory kemper:/tmp/cvs-serv17824/samples

Added Files:
	blur.rb 
Log Message:
* src/lib/cairo/context.rb, src/lib/cairo/context/blur.rb: added
  Cairo::Context#pseudo_blur.

* samples/blur.rb: added a sample script for Cairo::Context#pseudo_blur.


--- NEW FILE: blur.rb ---
#!/USO/bin/env ruby

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(Cairo::FORMAT_ARGB32, width, height)
context = Cairo::Context.new(surface)

context.set_source_rgb(1, 1, 1)
context.paint

context.set_source_rgb(0.3, 0.3, 0.3)
context.rectangle(margin, margin, rectangle_width, rectangle_height)
context.fill

context.pseudo_blur do
  context.set_source_rgb(0.3, 0.3, 0.3)
  context.rectangle(margin, rectangle_height + 2 * margin + margin / 2,
                    rectangle_width, rectangle_height)
  context.fill
end

context.pseudo_blur(5) do
  context.set_source_rgb(0.3, 0.3, 0.3)
  context.rectangle(margin, (rectangle_height + 2 * margin) * 2 + margin / 2,
                    rectangle_width, rectangle_height)
  context.fill
end

surface.write_to_png("blur.png")