ruby-****@sourc*****
ruby-****@sourc*****
2012年 12月 6日 (木) 05:04:40 JST
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REMOTE_ADDR = 184.145.82.22
REMOTE_HOST =
URL = http://ruby-gnome2.sourceforge.jp/hiki.cgi?tut-gtk2-dnd-intro
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@@ -15,7 +15,7 @@
=== Identifying the DnD Objects
-Unlike to a GUI user, to a GUI developer identification of a drag-and-drop objects is not at all that obvious. While conceptually it should be always easy to determine what is the dragging object and its source and destination locations, in reality the lines between these items may be blurry. This is mostly due to the fact, that Gtk performs many tasks for you behind the scene, and also because the objects that are to be dragged are not at all directly referenced in drag-and-drop API. Instead, the methods in Gtk::Drag module and related classes refer to them as abstract((*targets*))which you have to identify not so much in terms of graphic objects but rather as Gtk+ abstraction defined in Gtk::TargetList. Gtk::TargetList object is an array of targets (i.e. draggable items), that are specified with an ordered list or a tuple of three parameters '[target, flags, info]'. The((*'target'*))parameter is a string identifying the object to be dragged from the source and dropped onto
a destination. The((*'flags'*))parameter is one of the constants defined in Gtk::Drag#TargetFlags (TARGET_SAME_APP, TARGET_SAME_WIDGET, TARGET_OTHER_APP, and TARGET_OTHER_WIDGET). The last((*'info'*))element in the targets tuple is by the application or the developer defined identification integer.
+Unlike to a GUI user, to a GUI developer identification of a drag-and-drop objects is not at all that obvious. While conceptually it should be always easy to determine what is the dragging object and its source and destination locations, in reality the lines between these items may be blurry. This is mostly due to the fact, that Gtk performs many tasks for you behind the scene, and also because the objects that are to be dragged are not at all directly referenced in drag-and-drop API. Instead, the methods in Gtk::Drag module and related classes refer to them as abstract((*targets*))which you have to identify not so much in terms of graphic objects but rather as Gtk+ abstraction defined in Gtk::TargetList. Gtk::TargetList object is an array of targets (i.e. draggable items), that are specified with an ordered list or a tuple of three elements '[target, flags, info]'. The((*'target'*))parameter is a string identifying the object to be dragged from the source and dropped onto a
destination. The((*'flags'*))parameter is one of the constants defined in Gtk::Drag#TargetFlags (TARGET_SAME_APP, TARGET_SAME_WIDGET, TARGET_OTHER_APP, and TARGET_OTHER_WIDGET). The last((*'info'*))element in the targets tuple is by the application or the developer defined identification integer.
:Note: