/* 
 * AT-SPI - Assistive Technology Service Provider Interface 
 * (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
 *
 * Copyright 2001 Sun Microsystems, Inc.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

module Accessibility {

  enum TEXT_BOUNDARY_TYPE {
    TEXT_BOUNDARY_CHAR,
    TEXT_BOUNDARY_CURSOR_POS,
    TEXT_BOUNDARY_WORD_START,
    TEXT_BOUNDARY_WORD_END,
    TEXT_BOUNDARY_SENTENCE_START,
    TEXT_BOUNDARY_SENTENCE_END,
    TEXT_BOUNDARY_LINE_START,
    TEXT_BOUNDARY_LINE_END
};

  interface Text {
        long getCharacterCount ();
        string getText (in long startOfffset, in long endOffset);
        long getCaretOffset ();
        boolean setCaretOffset (in long offset);
        string getTextBeforeOffset (in long offset, in TEXT_BOUNDARY_TYPE type);
        string getTextAtOffset (in long offset, in TEXT_BOUNDARY_TYPE type);
        string getTextAfterOffset (in long offset, in TEXT_BOUNDARY_TYPE type);
        /* could be string instead, to allow unicode chars > 16 bits */
        wchar getCharacterAtOffset (in long offset);
        void getRowColAtOffset (in long offset, out long row, out long column);
        string getAttributes (in long startOffset, in long endOffset);
        boolean getCharacterExtents (in long offset, out long x, out long y, out long length, out long width);
        long getOffsetAtPoint (in long x, in long y);
        string getSelectedText ();
        void getSelectionBounds (out long startOffset, out long endOffset);
        boolean setSelectionBounds (in long startOffset, in long endOffset);
  };
};