ruby-****@sourc*****
ruby-****@sourc*****
2012年 9月 5日 (水) 04:03:00 JST
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REMOTE_ADDR = 70.49.49.99
REMOTE_HOST =
URL = http://ruby-gnome2.sourceforge.jp/hiki.cgi?tut-gtk2-txtw-itrsmrks
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@@ -137,7 +137,14 @@
iter = textview.buffer.get_iter_at_mark(mark)
-The other method for retrieving text iterators in our function called "retrieve_text" is Gtk::TextBuffer#bounds. It returns an array with the starting and ending Gtk::TextIter objects, which identify the selected text interval in the text buffer.
+The other method for retrieving text iterators in our function called "retrieve_text" is Gtk::TextBuffer#bounds. It returns an array with the starting and ending Gtk::TextIter objects, which identify the starting and ending points of the entire text buffer.
+
+:Note:
+ In Gtk::TextBuffer there are three methods with a semantically similar name pertaining to((*BOUND/S*)). Do not confuse them. They are:
+
+ * Gtk::TextBuffer::selection_bound - singular. Returns the mark that represents the selection bound, and is equivalent to calling Gtk::TextBuffer#get_mark to get the mark named "selection_bound".
+ * Gtk::TextBuffer::selection_bounds - plural. Obtains selected text and returns an array:((*[start, end, selected]*))
+ * Gtk::TextBuffer::bounds. Retrieves the first and last iterators in the buffer, i.e. the entire buffer lies within the range [start, end]. Accordingly returns an array:((*[start, end]*))
When you have the two iterators you have to supply them to Gtk::TextBuffer#get_text(start, end, show_invisible=false), to retrieve the selection.