gecko-dev/other-licenses/ia2/AccessibleTableCell.idl

/*************************************************************************
 *
 *  File Name (AccessibleTableCell.idl)
 *
 *  IAccessible2 IDL Specification
 *
 *  Copyright (c) Linux Foundation 2007, 2009
 *  Copyright (c) IBM Corp. 2006
 *  Copyright (c) Sun Microsystems, Inc. 2000, 2006
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License version 2.1, as published by the Free Software Foundation; either
 *  version 2.1 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
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 ************************************************************************/

import "objidl.idl";
import "oaidl.idl";
import "oleacc.idl";
import "Accessible2.idl";

/** @brief This interface gives access to the cells of a two-dimensional table.

 Please also refer to the IAccessibleTable2 interface.

*/
[object, uuid(594116B1-C99F-4847-AD06-0A7A86ECE645)]
interface IAccessibleTableCell : IUnknown
{

  /** @brief Returns the number of columns occupied by this cell accessible.
        
   The result is greater than 1 if the specified cell spans multiple columns.
   @param [out] nColumnsSpanned
    Returns the 1 based column extent of the specified cell.
   @retval S_OK
  */
  [propget] HRESULT columnExtent
    (
     [out, retval] long *nColumnsSpanned 
    );

  /** @brief Returns the column headers as an array of cell accessibles.

   @param [out] cellAccessibles
    Pointer to an array of references to cell accessibles.  The array is allocated
	by the server.  Free it with CoTaskMemFree.
   @param [out] nColumnHeaderCells
    The number of accessibles returned; the size of the returned array.
   @retval S_OK
   @retval S_FALSE if there is no header, [out] values are NULL and 0 respectively 
  */
  [propget] HRESULT columnHeaderCells
    (
     [out, size_is(,*nColumnHeaderCells,)] IUnknown ***cellAccessibles,
     [out, retval] long *nColumnHeaderCells
    );

  /** @brief Translates this cell accessible into the corresponding column index.

   @param [out] columnIndex
    Returns the 0 based column index of the cell of the specified cell or the index of 
    the first column if the cell spans multiple columns.
   @retval S_OK
  */
  [propget] HRESULT columnIndex
    (
     [out, retval] long *columnIndex
    );

  /** @brief Returns the number of rows occupied by this cell accessible.
        
   @param [out] nRowsSpanned
    Returns the row extent of the specified cell.
   @retval S_OK
  */
  [propget] HRESULT rowExtent
    (
     [out, retval] long *nRowsSpanned
    );

  /** @brief Returns the row headers as an array of cell accessibles.

   @param [out] cellAccessibles
    Pointer to an array of references to cell accessibles.  The array is allocated
	by the server.  Free it with CoTaskMemFree.
   @param [out] nRowHeaderCells
    The number of accessibles returned; the size of the returned array.
   @retval S_OK
   @retval S_FALSE if there is no header, [out] values are NULL and 0 respectively 
  */
  [propget] HRESULT rowHeaderCells
    (
     [out, size_is(,*nRowHeaderCells,)] IUnknown ***cellAccessibles,
     [out, retval] long *nRowHeaderCells
    );

  /** @brief Translates this cell accessible into the corresponding row index.

   @param [out] rowIndex
    Returns the 0 based row index of the specified cell or the index of 
    the first row if the cell spans multiple rows.
   @retval S_OK
  */
  [propget] HRESULT rowIndex
    (
     [out, retval] long *rowIndex 
    );

  /** @brief Returns a boolean value indicating whether this cell is selected.

   @param [out] isSelected
    Returns TRUE if the specified cell is selected and FALSE otherwise.
   @retval S_OK
  */
  [propget] HRESULT isSelected
    (
     [out, retval] boolean *isSelected 
    );
  
  /** @brief Gets the row and column indexes and extents of this cell accessible
    and whether or not it is selected.

   This is a convenience function.  It is not mandatory to implement it.
   @param [out] row
    0 based row index.
   @param [out] column
    0 based column index.
   @param [out] rowExtents
    Number of cells spanned by this cell in this row.
   @param [out] columnExtents
    Number of cells spanned by this cell in this column.
   @param [out] isSelected
    Indicates if the specified cell is selected.
   @retval S_OK
  */
  [propget] HRESULT rowColumnExtents
    (
     [out] long *row,  
     [out] long *column,
     [out] long *rowExtents,
     [out] long *columnExtents,
     [out, retval] boolean *isSelected
    );

  /** @brief Returns a reference to the accessbile of the containing table.

   @param [out] table
    Returns a reference to the IUnknown of the containing table.
   @retval S_OK
  */
  [propget] HRESULT table
    (
     [out, retval] IUnknown **table
    );

}