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Accessibility::Table Interface Reference

An interface used by containers whose contained data is arranged in a "tabular" (i.e. row-column) fashion. More...

import "Accessibility_Table.idl";

List of all members.

Public Member Functions

Accessible getAccessibleAt (in long row, in long column)
 Get the table cell at the specified row and column indices.
long getIndexAt (in long row, in long column)
 Get the 1-D child index corresponding to the specified 2-D row and column indices.
long getRowAtIndex (in long index)
 Get the table row index occupied by the child at a particular 1-D child index.
long getColumnAtIndex (in long index)
 Get the table column index occupied by the child at a particular 1-D child index.
string getRowDescription (in long row)
 Get a text description of a particular table row.
string getColumnDescription (in long column)
 Get a text description of a particular table column.
long getRowExtentAt (in long row, in long column)
 Get the number of rows spanned by the table cell at the specific row and column.
long getColumnExtentAt (in long row, in long column)
 Get the number of columns spanned by the table cell at the specific row and column.
Accessible getRowHeader (in long row)
 Get the header associated with a table row, if available.
Accessible getColumnHeader (in long column)
 Get the header associated with a table column, if available, as an instance of Accessible.
LongSeq getSelectedRows ()
 Obtain the indices of all rows which are currently selected.
LongSeq getSelectedColumns ()
 Obtain the indices of all columns which are currently selected.
boolean isRowSelected (in long row)
 Determine whether a table row is selected.
boolean isColumnSelected (in long column)
 Determine whether a table column is selected.
boolean isSelected (in long row, in long column)
 Determine whether the cell at a specific row and column is selected.
boolean addRowSelection (in long row)
 Select the specified row, adding it to the current row selection, if the table's selection model permits it.
boolean addColumnSelection (in long column)
 Select the specified column, adding it to the current column selection, if the table's selection model permits it.
boolean removeRowSelection (in long row)
 Remove the specified row from current row selection, if the table's selection model permits it.
boolean removeColumnSelection (in long column)
 Remove the specified column from current column selection, if the table's selection model permits it.
boolean getRowColumnExtentsAtIndex (in index, out long row, out long col, out long row_extents, out long col_extents, out boolean is_selected)
 Given a child index, determine the row and column indices and extents, and whether the cell is currently selected.

Public Attributes

readonly attribute long nRows
 The total number of rows in this table (including empty rows), exclusive of any rows which are programmatically hidden.
readonly attribute long nColumns
 The total number of columns in this table (including empty columns), exclusive of columns which are programmatically hidden.
readonly attribute Accessible caption
 An Accessible which represents of a caption for a Table.
readonly attribute Accessible summary
 An accessible object which summarizes the contents of a Table.
readonly attribute long nSelectedRows
 The number of rows currently selected.
readonly attribute long nSelectedColumns
 The number of columns currently selected.


Detailed Description

An interface used by containers whose contained data is arranged in a "tabular" (i.e. row-column) fashion.

Tables may resemble a two-dimensional grid, as in a spreadsheet, or may feature objects which span multiple rows and/or columns, but whose bounds are aligned on a row/column matrix. Thus, the Table interface may be used to represent "spreadsheets" as well as "frames".

Objects within tables are children of the Table instance, and they may be referenced either via a child index or via a row/column pair. Their role may be ROLE_TABLE_CELL, but table 'cells' may have other roles as well. These 'cells' may implement other interfaces, such as Text, Action, Image, and Component, and should do so as appropriate to their onscreen representation and/or behavior.

Definition at line 43 of file Accessibility_Table.idl.


Member Function Documentation

Accessible Accessibility::Table::getAccessibleAt in long  row,
in long  column
 

Get the table cell at the specified row and column indices.

Note:
To get the accessible object at a particular (x, y) screen coordinate, use Accessible::getAccessibleAtPoint ().
Parameters:
row,: the specified table row, zero-indexed.
column,: the specified table column, zero-indexed.
Returns:
an Accessible object representing the specified table cell.

long Accessibility::Table::getIndexAt in long  row,
in long  column
 

Get the 1-D child index corresponding to the specified 2-D row and column indices.

Note:
To get the accessible object at a particular (x, y) screen coordinate, use Accessible::getAccessibleAtPoint.
Parameters:
row,: the specified table row, zero-indexed.
column,: the specified table column, zero-indexed.
See also:
getRowAtIndex, getColumnAtIndex
Returns:
a long integer which serves as the index of a specified cell in the table, in a form usable by Accessible::getChildAtIndex.

long Accessibility::Table::getRowAtIndex in long  index  ) 
 

Get the table row index occupied by the child at a particular 1-D child index.

Parameters:
index,: the specified child index, zero-indexed.
See also:
getIndexAt(), getColumnAtIndex()
Returns:
a long integer indicating the first row spanned by the child of a table, at the specified 1-D (zero-offset) index.

long Accessibility::Table::getColumnAtIndex in long  index  ) 
 

Get the table column index occupied by the child at a particular 1-D child index.

Parameters:
index,: the specified child index, zero-indexed.
See also:
getIndexAt(), getRowAtIndex()
Returns:
a long integer indicating the first column spanned by the child of a table, at the specified 1-D (zero-offset) index.

string Accessibility::Table::getRowDescription in long  row  ) 
 

Get a text description of a particular table row.

This differs from AccessibleTable_getRowHeader, which returns an Accessible.

Parameters:
row,: the specified table row, zero-indexed.
Returns:
a UTF-8 string describing the specified table row, if available.

string Accessibility::Table::getColumnDescription in long  column  ) 
 

Get a text description of a particular table column.

This differs from AccessibleTable_getColumnHeader, which returns an Accessible.

Parameters:
column,: the specified table column, zero-indexed.
Returns:
a UTF-8 string describing the specified table column, if available.

long Accessibility::Table::getRowExtentAt in long  row,
in long  column
 

Get the number of rows spanned by the table cell at the specific row and column.

(some tables can have cells which span multiple rows and/or columns).

Parameters:
row,: the specified table row, zero-indexed.
column,: the specified table column, zero-indexed.
Returns:
a long integer indicating the number of rows spanned by the specified cell.

long Accessibility::Table::getColumnExtentAt in long  row,
in long  column
 

Get the number of columns spanned by the table cell at the specific row and column.

(some tables can have cells which span multiple rows and/or columns).

Parameters:
row,: the specified table row, zero-indexed.
column,: the specified table column, zero-indexed.
Returns:
a long integer indicating the number of columns spanned by the specified cell.

Accessible Accessibility::Table::getRowHeader in long  row  ) 
 

Get the header associated with a table row, if available.

This differs from getRowDescription, which returns a string.

Parameters:
row,: the specified table row, zero-indexed.
Returns:
an Accessible representatin of the specified table row, if available.

Accessible Accessibility::Table::getColumnHeader in long  column  ) 
 

Get the header associated with a table column, if available, as an instance of Accessible.

This differs from getColumnDescription, which returns a string.

Parameters:
column,: the specified table column, zero-indexed.
Returns:
an Accessible representatin of the specified table column, if available.

LongSeq Accessibility::Table::getSelectedRows  ) 
 

Obtain the indices of all rows which are currently selected.

Note:
Not all tables support row selection.
Returns:
a sequence of integers comprising the indices of rows currently selected.

LongSeq Accessibility::Table::getSelectedColumns  ) 
 

Obtain the indices of all columns which are currently selected.

Note:
Not all tables support column selection.
Returns:
a sequence of integers comprising the indices of columns currently selected.

boolean Accessibility::Table::isRowSelected in long  row  ) 
 

Determine whether a table row is selected.

Note:
Not all tables support row selection.
Parameters:
row,: the row being queried.
Returns:
True if the specified row is currently selected, False if not.

boolean Accessibility::Table::isColumnSelected in long  column  ) 
 

Determine whether a table column is selected.

Note:
Not all tables support column selection.
Parameters:
column,: the column being queried.
Returns:
True if the specified column is currently selected, False if not.

boolean Accessibility::Table::isSelected in long  row,
in long  column
 

Determine whether the cell at a specific row and column is selected.

Parameters:
row a row occupied by the cell whose state is being queried.
column a column occupied by the cell whose state is being queried.
Returns:
True if the specified cell is currently selected, False if not.

boolean Accessibility::Table::addRowSelection in long  row  ) 
 

Select the specified row, adding it to the current row selection, if the table's selection model permits it.

Parameters:
row 
Note:
Possible reasons for addRowSelection to return False include:
  • The table does not support Selection
  • The table row includes cells which do not have STATE_SELECTABLE
  • The table does not support selection by row
  • The table does not support selection of multiple rows, and one row is already selected.
  • The table does not support non-contiguous selections (i.e. does not include STATE_MULTISELECTABLE), and the specified row would result in selection of non-contiguous rows.
  • The table does not support user-instigated selection.
Returns:
True if the specified row was successfully selected, False if not.

boolean Accessibility::Table::addColumnSelection in long  column  ) 
 

Select the specified column, adding it to the current column selection, if the table's selection model permits it.

Parameters:
column 
Note:
Possible reasons for addColumnSelection to return False include:
  • The table does not support Selection
  • The table column includes cells which do not have STATE_SELECTABLE
  • The table does not support selection by column
  • The table does not support selection of multiple columns, and one column is already selected.
  • The table does not support non-contiguous selections (i.e. does not include STATE_MULTISELECTABLE), and the specified column would result in selection of non-contiguous columns.
  • The table does not support user-instigated selection.
Returns:
True if the specified column was successfully selected, False if not.

boolean Accessibility::Table::removeRowSelection in long  row  ) 
 

Remove the specified row from current row selection, if the table's selection model permits it.

Parameters:
row 
Note:
Possible reasons for removeRowSelection to return False include:
  • The table does not support user-instigated Selection
  • The table has no selected rows or does not support deselection by row
Returns:
True if the specified row was successfully de-selected, False if not.

boolean Accessibility::Table::removeColumnSelection in long  column  ) 
 

Remove the specified column from current column selection, if the table's selection model permits it.

Parameters:
column 
Note:
Possible reasons for removeColumnSelection to return False include:
  • The table does not support user-instigated modification of selection state
  • The table has no selected columns or does not support deselection by column.
Returns:
True if the specified column was successfully de-selected, False if not.

boolean Accessibility::Table::getRowColumnExtentsAtIndex in  index,
out long  row,
out long  col,
out long  row_extents,
out long  col_extents,
out boolean  is_selected
 

Given a child index, determine the row and column indices and extents, and whether the cell is currently selected.

If the child at index is not a cell (for instance, if it is a summary, caption, etc.), False is returned.

Parameters:
index the index of the Table child whose row/column extents are requested.
row back-filled with the first table row associated with the cell with child index index.
col back-filled with the first table column associated with the cell with child index index.
row_extents back-filled with the number of table rows across which child i extends.
col_extents back-filled with the number of table columns across which child i extends.
is_selected a boolean which is back-filled with True if the child at index i corresponds to a selected table cell, False otherwise.
Example: If the Table child at index '6' extends across columns 5 and 6 of row 2 of a Table instance, and is currently selected, then
 retval = table::getRowColumnExtentsAtIndex (6, row, col, 
                                             row_extents,
                                             col_extents,
                                             is_selected);
will return True, and after the call row, col, row_extents, col_extents, and is_selected will contain 2, 5, 1, 2, and True, respectively.

Returns:
True if the index is associated with a valid table cell, False if the index does not correspond to a cell. If False is returned, the values of the out parameters are undefined.
Since:
AT-SPI 1.7.0


Member Data Documentation

readonly attribute long Accessibility::Table::nRows
 

The total number of rows in this table (including empty rows), exclusive of any rows which are programmatically hidden.

Rows which are merely scrolled out of view are included.

Definition at line 49 of file Accessibility_Table.idl.

readonly attribute long Accessibility::Table::nColumns
 

The total number of columns in this table (including empty columns), exclusive of columns which are programmatically hidden.

Columns which are scrolled out of view or clipped by the current viewport are included.

Definition at line 56 of file Accessibility_Table.idl.

readonly attribute Accessible Accessibility::Table::caption
 

An Accessible which represents of a caption for a Table.

Definition at line 60 of file Accessibility_Table.idl.

readonly attribute Accessible Accessibility::Table::summary
 

An accessible object which summarizes the contents of a Table.

This object is frequently itself a Table instance, albeit a simplified one.

Definition at line 65 of file Accessibility_Table.idl.

readonly attribute long Accessibility::Table::nSelectedRows
 

The number of rows currently selected.

A selected row is one in which all included cells are selected.

Note:
Not all tables support row selection.

Definition at line 71 of file Accessibility_Table.idl.

readonly attribute long Accessibility::Table::nSelectedColumns
 

The number of columns currently selected.

A selected column is one in which all included cells are selected.

Note:
Not all tables support column selection.

Definition at line 77 of file Accessibility_Table.idl.


The documentation for this interface was generated from the following file:
Generated on Fri Dec 2 15:20:47 2005 for AT_SPI_IDL by  doxygen 1.4.3