ruby-****@sourc*****
ruby-****@sourc*****
2013年 3月 20日 (水) 02:05:16 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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@@ -167,7 +167,7 @@
Gtk.main
-You should notice a few things in the above listing. First, a ((*parray*)) is used to track the points that are added to the drawing area. This is fine when we draw lines with the mouse, however when a Gdk::Drawable's drawing instance methods are used their output is not saved in the array. This is important, because every time ((*expose_event*)) is emitted (and this is every time focus is changed, or mouse is dragged outside our application window) the drawing area is cleared, and has to be repainted. We can repaint what we have saved but not what was generated by Gdk::Drawable's drawing instance methods!
+You should notice a few things in the above listing. First, the((*parray*))is used to track the points that are added to the drawing area. This is fine when we draw lines with the mouse, however when a Gdk::Drawable's drawing instance methods are used their output is not saved in the array. This is important, because every time ((*expose_event*)) is emitted (and this is every time focus is changed, or mouse is dragged outside our application window) the drawing area is cleared, and has to be repainted. We can repaint what we have saved but not what was generated by Gdk::Drawable's drawing instance methods!
{{image_right("agtkw-02-drawingareas.png")}}