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36 lines
718 B
Ruby
36 lines
718 B
Ruby
# Copyright (c) 2005 Ruby-GNOME2 Project Team
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# This program is licenced under the same licence as Ruby-GNOME2.
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#
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# $Id: cairo-clip.rb,v 1.1 2005/10/12 05:38:30 ktou Exp $
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=begin
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= cairo/Clip
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This demo shows how to use GDK and cairo to use clip.
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From http://cairographics.org/samples/clip.html.
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=end
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require 'common'
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module Demo
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class CairoClip < CairoWindow
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def initialize
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super('cairo clip')
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end
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def draw(cr)
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cr.arc(0.5, 0.5, 0.3, 0, 2 * Math::PI)
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cr.clip
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cr.new_path
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cr.rectangle(0, 0, 1, 1)
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cr.fill
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cr.set_source_rgba(0, 1, 0)
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cr.move_to(0, 0)
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cr.line_to(1, 1)
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cr.move_to(1, 0)
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cr.line_to(0, 1)
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cr.stroke
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end
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end
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end
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