ruby-****@sourc*****
ruby-****@sourc*****
2012年 12月 8日 (土) 00:55:28 JST
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REMOTE_ADDR = 184.145.84.49
REMOTE_HOST =
URL = http://ruby-gnome2.sourceforge.jp/hiki.cgi?tut-gtk2-dnd-intro
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@@ -175,6 +175,10 @@
You almost certainly by now are aware, that for these drag-and-drop actions neither the source button widget nor the destination label widgets offer any particular help with the drag-and-drop operations (actions). We have to provide the appropriate signal handler callbacks, and perform the swapping of the widgets' positions ourselves. However, as you will learn shortly, by registering widgets, that natively do not support dnd behaviour, as dnd source and destination widgets, you actually ask Gtk to chip in, and start providing the basic dnd services such as taking care of cursor shape during dnd operations and some other, to a user not obvious, dnd services.
+We will next look at the code of our 'button to label dnd' example program, which I believe, will provide a more concrete revelations of some of the abstract dnd concepts we have been discussing up to now and finally get your feet 'dnd' wet. But first, we should get ready for a switch from procedural programming paradigm, in which all the examples so far were written, to the object oriented one in which all your future Gtk programming should really be done.
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