2002-02-08  Jon K Hellan  <hellan@acm.org>

	* src/style-color.c (style_color_new_uninterned): Create with
	refcount 1.
	(style_color_new): Only increment refcount if using cached color.

	* src/sheet.c (sheet_duplicate): Clone auto pattern color

	* src/sheet-style.c (sheet_style_init): Move auto_pattern_color
	initialization forward. sheet_style_get_auto_pattern_color is
	called from sheet_style_find below.
	(sheet_style_set_auto_pattern_color): Tag it as an auto
	color. Unref the input color.

	* src/sheet-style.[ch]: (sheet_style_get_auto_pattern_color): constify.

	* src/mstyle.c (link_pattern_color): New function.  Replace auto
	pattern color in style with sheet's auto pattern color.
	(link_border_colors): New function. Replace auto border colors in
	style with sheet's auto pattern color.
	(mstyle_link_sheet): Use target sheet's auto pattern color by
	calling link_xxxx_color functions.
	(mstyle_set_border): Fix typo.

	* plugins/excel/ms-excel-read.c (ms_excel_read_window2): No
	need to unref pattern_color,
	sheet_style_set_auto_pattern_color now does that.