2000-12-17  Jody Goldberg <jgoldberg@home.com>

	* src/sheet.c (sheet_find_boundary_horizontal) : support merged cells
	  fully.
	(sheet_find_boundary_vertical) : Ditto.

	* src/gnumeric-sheet.c (gnumeric_sheet_set_cursor_bounds) : Remove
	  unnecessary sanity checks.
	(cursor_horizontal_move) : pass the base row.
	(cursor_vertical_move) : Ditto.
	(rangesel_horizontal_move) : Ditto.
	(rangesel_vertical_move) : Ditto.
	(rangesel_horizontal_extend) : Ditto.
	(rangesel_vertical_extend) : Ditto.

	* src/selection.c (sheet_selection_extend) : Pass the base row/col.
	* src/item-cursor.c (item_cursor_selection_event) : Ditto.