ruby-****@sourc*****
ruby-****@sourc*****
2012年 9月 6日 (木) 12:40:06 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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@@ -37,14 +37,14 @@
By default, text marks have((*gravity*))set to the right, hence a text mark will move to the right as new text is added. If text is removed the mark will move between the two pieces of text on either side of the removed text. Then if the text is inserted at that position, because of its right gravity setting, the mark will remain on the right side of the inserted text. You can see that the text mark behaves just like a cursor in most text editors.
-:Text mark Visibility:
+:Text Mark Visibility:
By default, text marks are invisible within the text, however, you can make them visible by setting Gtk::TextBuffer#visible=(boolean) to true.
Text marks can be accessed in two ways. You can retrieve a text mark at a specific Gtk::TextIter location. It is also possible to set up text mark with a string as its name, which makes it easy to keep track of.
-=== Creating a text mark:
+=== Creating a Text Mark:
:Gtk::TextBuffer#create_mark(mark_name, iter, left_gravity)
Creates a mark at position iter. If mark_name is nil, the mark is anonymous; otherwise, the mark can be retrieved by name using Gtk::TextBuffer#get_mark. If a mark has left gravity, and text is inserted at the mark's current location, the mark will be moved to the left of the newly-inserted text. If the mark has right gravity (left_gravity = false), the mark will end up on the right of newly-inserted text. The standard left-to-right cursor is a mark with right gravity (when you type, the cursor stays on the right side of the text you're typing). The caller of this method does not own a reference to the returned Gtk::TextMark, so you can ignore the return value if you like. Marks are owned by the buffer and go away when the buffer does. Emits the "mark_set" signal as notification of the mark's initial placement.