ruby-****@sourc*****
ruby-****@sourc*****
2013年 3月 26日 (火) 05:20:57 JST
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REMOTE_ADDR = 70.49.48.128
REMOTE_HOST =
URL = http://ruby-gnome2.sourceforge.jp/hiki.cgi?tut-gtk2-dancr-rbcatut
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@@ -375,6 +375,33 @@
{{image_right("123-05-fill.png")}}
+ The ((<cairo_fill()|URL:http://www.cairographics.org/manual/cairo-cairo-t.html#cairo-fill>)) operation instead uses the path like the lines of a coloring book, and allows the source through the mask within the hole whose boundaries are the path. For complex paths (paths with multiple closed sub-paths様ike a donut熔r paths that self-intersect) this is influenced by the ((<fill rule|URL:http://www.cairographics.org/manual/cairo-cairo-t.html#cairo-set-fill-rule>)). Note that while stroking the path transfers the source for half of the line width on each side of the path, filling a path fills directly up to the edge of the path and no further.
+
+ {{br}}{{image_right("1203-p05-00-stroke.png")}}
+
+ #!/usr/bin/env ruby
+ $: << '~/work/HikiLib'
+ require 'hiki2-gtk-w-cairo.rb'
+ include HikiGtk
+ class StrokeDemo < CairoWindow
+ def draw(cr, da)
+ #width, height = da.window.size
+ # Your code goes between the two dashed lines:
+ # -- your code - start ----------------------------------------- -s-
+ cr.scale(120, 120)
+ cr.line_width = 0.1
+ cr.set_source_rgb(0, 0, 0)
+ cr.rectangle(0.25, 0.25, 0.5, 0.5)
+ cr.stroke
+ # -- your code - end ------------------------------------------- -e-
+ end
+ end # // EndOf class StrokeDemo
+ window = StrokeDemo.new("Stroke Tut. Example")
+ window.show_all
+ Gtk.main
+
+
+
:Show Text / Glyphs
(12.3.1.2.3){{br}}