ruby-****@sourc*****
ruby-****@sourc*****
2012年 9月 20日 (木) 08:41:09 JST
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REMOTE_ADDR = 184.145.80.187
REMOTE_HOST =
URL = http://ruby-gnome2.sourceforge.jp/hiki.cgi?tut-gtk2-treev-parts
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@@ -47,7 +47,9 @@
After you have created the tree model, the view is used to display the data. By separating the tree view and the model, you are able to display the same set of data in multiple views. These views can be exact copies of each other, or the data can be displayed in varying ways. All views will be updated simultaneously as you make alterations to a model.
-As we will see later one can query for the value of a model at a certain node and a certain column on that node. There are two structures used to reference a particular node in a model. They are the Gtk::TreePath and the Gtk::TreeIter. Most of the interface consists of operations on a Gtk::TreeIter.
+:Navigating tree model:
+ As we will see later one can query for the value of a model at a certain node and a certain column on that node. There are two structures used to reference a particular node in a model. They are the Gtk::TreePath and the Gtk::TreeIter. Most of the interface consists of operations on a Gtk::TreeIter.
+
Models are composed of columns that contain the same data type, and rows that hold the entire heterogeneous set of data for a row. On the other hand each model column can hold a single type of data (note that rows contain heterogeneous while columns homogeneous data types). A tree model column should not be confused with a tree view column, which is composed of a single header but may be rendered with data from multiple model columns.