ruby-****@sourc*****
ruby-****@sourc*****
2009年 2月 18日 (水) 05:06:47 JST
------------------------- REMOTE_ADDR = 74.15.84.244 REMOTE_HOST = URL = http://ruby-gnome2.sourceforge.jp/hiki.cgi?tut-gtk2-treev-pxbr ------------------------- @@ -1,6 +1,8 @@ = The Tree View Widget {{link "tut-gtk2-treev-crs", "tut-gtk2-treev", "tut-gtk", "tut-gtk2-treev-spbttr"}} += Sorry this page is still under construction + == Pixbuf Renderers Adding images in the form of Gdk::Pixbuf object as a column in the Gtk::TreeView is a very useful feature provided by Gtk::CellRendererPixbuf. @@ -9,8 +11,9 @@ {{image_left("treev-trees-ok.png")}} -However, currently (as of Ruby 1.8.6 and Ruby-GNOME2 rel.: 2-0.17.0-rc1) there is a problem with Gtk::CellRendererPixbuf -{{image_right("dialog-warning.png")}}, and it looks as a combined C GTK+ as well as Ruby GTK+ problem. I have compiled the C example from Andrew Klause's book, and it exhibits exactly the same problems as my Ruby translation. You may check it out by clicking on ((<pixbuf-rdr.c|tut-gtk2-treev-treev-pxbr-cgtk-01>)) +As you can see there are no pixbuf objects on this image on the left. This is because of a problem in GTK+. Namely, currently (as of Ruby 1.8.6 and Ruby-GNOME2 rel.: 2-0.17.0-rc1) {{image_right("dialog-warning.png")}}two important methods: Gtk::CellRendererPixbuf#set_attributes and Gtk::CellRendererPixbuf#set_attributes, do not work as expected. It looks that this is a combined C GTK+ as well as Ruby GTK+ problem. I have compiled the C example from Andrew Klause's book, and it exhibits exactly the same problems as my Ruby translation. You may check it out by clicking on ((<pixbuf-rdr.c|tut-gtk2-treev-treev-pxbr-cgtk-01>)) {{br}} @@ -139,7 +140,8 @@ window.show_all Gtk.main -For your convenience I have included the two offending methods: +For your convenience I have included the API documentation for the two offending methods: #--- Gtk::TreeViewColumn#add_attribute(cell_renderer, attribute, column) #