Tue Feb 19 17:36:31 2002  Kristian Rietveld  <kris@gtk.org>

        * gtktreeprivate.h, gtktreeviewcolumn.[ch], gtktreeview.c: change
        gtk_tree_view_column_cell_render,
        gtk_tree_view_column_cell_focus,
        gtk_tree_view_column_cell_draw_focus and
        gtk_tree_view_column_cell_set_dirty to be private functions.

        * gtktreeviewcolumn.[ch]: add install_handler argument to
        _cell_set_dirty to control if _mark_rows_col_dirty (which calls
        install_presize_handler) gets called, set widths correctly so
        autosizing works (#71870)

        * gtktreeview.c (gtk_tree_view_column_autosize): new function,
        (gtk_tree_view_button_press): make double click on column
        separator resize the row (#71870)
        (gtk_tree_view_get_dest_row_at_pos): change DnD threshold to 33%
        (#71869, suggestion by Anders Carlsson)