ruby-****@sourc*****
ruby-****@sourc*****
2013年 3月 20日 (水) 03:02:19 JST
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REMOTE_ADDR = 184.145.81.215
REMOTE_HOST =
URL = http://ruby-gnome2.sourceforge.jp/hiki.cgi?tut-gtk2-agtkw-draww
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@@ -199,6 +199,6 @@
end
-When we draw our lines we add four additional points around the original (x,y) position, which has a line thickening effect. With this program we only scratched the surface demonstrating how vector graphic is implemented in GTK+, and more importantly how user interactions with the program are handled. One should study this area of GTK programming intensely and very carefully. Failing to understand how and when drawing areas are repainted will undoubtedly hamper your ability to write attractive, usable graphic programs. Unfortunately, the inclusion of a more powerful Cairo graphics library into GTK does not make it easier for a novice to learn the ropes of graphic programming, if anything, it makes it more difficult, by confusing the would be graphic programmer with comments that mark quite a few original GTK features if not useless but rather obsolete and deprecated. Regardless, my advice is, you take time to learn the basics by ignoring Cairo library at first, at least for
so long, you get to understand programs like the one above.
+When we draw our lines we add four additional points around the original (x,y) position, which has a line thickening effect. With this program we only scratched the surface demonstrating how vector graphic is implemented in GTK+, and more importantly how user interactions with the program are handled. One should study this area of GTK programming intensely and very carefully. Failing to understand how and when drawing areas are repainted will undoubtedly hamper your ability to write attractive, usable graphic programs. Unfortunately, the inclusion of a more powerful Cairo graphics library into GTK does not make it easier for a novice to learn the ropes of graphic programming. If anything, it makes it more difficult, by confusing the would be graphic programmer with comments that mark quite a few original GTK features if not useless but rather obsolete and deprecated. Regardless, my advice is, you take time to learn the basics by ignoring Cairo library at first, at least for
so long, you get to understand programs like the one above.