Gtk2::Editable(3)

NAME
Gtk2::Editable

HIERARCHY
  Glib::Interface
  +----Gtk2::Editable

METHODS

  string = $editable->get_chars ($start_pos, $end_pos)

•   $start_pos (integer)

•   $end_pos (integer)

  $editable->copy_clipboard

  $editable->cut_clipboard

  $editable->delete_selection

  $editable->delete_text ($start_pos, $end_pos)

•   $start_pos (integer)

•   $end_pos (integer)

  boolean = $editable->get_editable

  $editable->set_editable ($is_editable)

•   $is_editable (boolean)

  new_position = $editable->insert_text (new_text, position)

•   $new_text (string)

•   ... (list)

  $editable->paste_clipboard

  integer = $editable->get_position

  $editable->set_position ($position)

•   $position (integer)

  $editable->select_region ($start, $end)

•   $start (integer)

•   $end (integer)

  (start, end) = $editable->get_selection_bounds
Returns integers, start and end.

SIGNALS

changed (Gtk2::Editable)
insert-text (Gtk2::Editable, string, integer, gpointer)
delete-text (Gtk2::Editable, integer, integer)

The "insert-text" signal handler can optionally alter the text to be inserted. It may

•   Return no values for no change. Be sure to end with an empty "return".

        sub my_insert_text_handler {
          my ($widget, $text, $len, $pos, $userdata) = @_;
          print "inserting '$text' at char position '$pos'\n";
          return;  # no values
        }

•   Return two values "($text, $pos)" which are the new text and character position.

        sub my_insert_text_handler {
          my ($widget, $text, $len, $pos, $userdata) = @_;
          return (uc($text), $pos);  # force to upper case
        }

•   Return no values and modify the text in $_[1] and/or position in $_[3]. For example,

        sub my_insert_text_handler {
          $_[1] = uc($_[1]);   # force to upper case
          $_[3] = 0;           # force position to the start
          return;  # no values
        }

Note that currently in a Perl subclass of a "Gtk2::Editable" widget, a class closure (ie. class default signal handler) for "insert-text" does not work this way. It instead sees the C level "($text, $len, $pos_pointer)", where $pos_pointer is a machine address and cannot be used easily. Hopefully this will change in the future. A "signal_chain_from_overridden" with the args as passed works, but for anything else the suggestion is to use a "signal_connect" instead.

SEE ALSO
Gtk2, Glib::Interface

COPYRIGHT
Copyright (C) 2003-2011 by the gtk2-perl team.

This software is licensed under the LGPL. See Gtk2 for a full notice.