Sun May  5 16:42:32 2002  Kristian Rietveld  <kris@gtk.org>

        The "big treeview focus patch". Fixes several issues and adds some
        goodies. Related bugs: #73676, #73734, #78660.

        * gtk/gtktreeview.h: add gtk_tree_view_set_cursor_on_cell

        * gtk/gtktreeview.c (gtk_tree_view_button_press): focus on a cell
        if applicable,
        (gtk_tree_view_bin_expose): set_cell_data before iterating columns,
        add support for row-spanning focus rectangles,
        (gtk_tree_view_has_special_cell): new function,
        (gtk_tree_view_move_cursor_left_right): add support for multiple
        focusable cells in one column,
        (gtk_tree_view_set_cursor): call _set_cursor_on_cell now,
        (gtk_tree_view_set_cursor_on_cell): copy of _set_cursor, extended
        with focus_cell parameter,
        (gtk_tree_view_search_iter): removed unused column variable,
        (gtk_tree_view_start_editing): add neighbor size code to allow
        for multiple editable cells in one column.

        * gtk/gtktreeviewcolumn.c (_GtkTreeViewColumnCellInfo): add
        in_editing_mode field,
        (gtk_tree_view_column_get_edited_cell): new function, removed
        _get_editable_cell,
        (_gtk_tree_view_column_get_cell_at_pos): new function,
        (gtk_tree_view_column_pack_end): s/g_new/g_new0/ ...,
        (gtk_tree_view_column_cell_process_action): loads of changes to get
        it right and to allow for multiple special cells, etc,
        (gtk_tree_view_column_cell_first): new function,
        (gtk_tree_view_column_cell_last): ditto,
        (gtk_tree_view_column_cell_next): ditto,
        (gtk_tree_view_column_cell_prev): ditto,
        (gtk_tree_view_column_cell_focus): add left and right parameters,
        allow for multiple special cells,
        (gtk_tree_view_column_cell_is_visible): add assertion,
        (gtk_tree_view_column_focus_cell): new function,
        (gtk_tree_view_column_stop_editing): unset in_editing_mode flag,
        (_gtk_tree_view_column_get_neighbor_sizes): iterate through cells
        correctly

        * gtk/gtktreeviewcolumn.h: add gtk_tree_view_column_focus_cell

        * gtk/gtktreeprivate.h: s/_get_editable_cell/_get_edited_cell/, add
        _gtk_tree_view_column_get_cell_at_pos, add new parameters to
        _gtk_tree_view_column_cell_focus.

        * tests/testtreeedit.c: add some cells in order to test new code.