g_utf8_offset_to_pointer scans the buffer. Too expensive. This is why I ask why the text iterator doesn't cache the byte index. Thanks, Gang 2011/8/11 <ian.liu88@xxxxxxxxx>: > You can use g_utf8_offset_to_pointer, and then its just a pointer > arithmetic: > > gchar *buffer = ... ; > gint offset = gtk_tree_iter_get_offset(iter); > gint index = g_utf8_offset_to_pointer(buffer, offset) - buffer; > > Cheers > Ian L. > > On , Gang Chen <gang.chen.cn@xxxxxxxxx> wrote: >> gtk-text-get-offset() returns the character offset, not byte indexes. >> >> >> >> 2011/8/10 Ian Liu Rodrigues ian.liu88@xxxxxxxxx>: >> >> > gtk_text_iter_get_offset - >> >> > >> > http://developer.gnome.org/gtk/stable/GtkTextIter.html#gtk-text-iter-get-offset >> >> > >> >> > Ian L. >> >> > >> >> > On Mon, Aug 8, 2011 at 11:51 PM, Gang Chen gang.chen.cn@xxxxxxxxx> >> > wrote: >> >> >> >> >> >> Hi all, >> >> >> >> >> >> My application has its own text buffer which uses byte indexes to >> >> >> index the text. I create a GtkTextBuffer as a mirror of the text >> >> >> buffer in order to display the text in a GtkTextView. I need to >> >> >> retrieve the byte index of a GtkTextIter but found no such function >> >> >> exists. How to? >> >> >> >> >> >> Thanks, >> >> >> Gang >> >> >> _______________________________________________ >> >> >> gtk-list mailing list >> >> >> gtk-list@xxxxxxxxx >> >> >> http://mail.gnome.org/mailman/listinfo/gtk-list >> >> > >> >> > >> >> _______________________________________________ gtk-list mailing list gtk-list@xxxxxxxxx http://mail.gnome.org/mailman/listinfo/gtk-list
