/*
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) version 3.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with the program; if not, see <http://www.gnu.org/licenses/>
 *
 *
 * Authors:
 *		Chris Lahey <clahey@ximian.com>
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <libintl.h>		/* This file uses dgettext() but no _() */
#include <string.h>

#include "e-util/e-util.h"
#include "e-util/e-unicode.h"

#include "e-table-utils.h"
#include "e-table-header-utils.h"

ETableHeader *
e_table_state_to_header (GtkWidget *widget,
                         ETableHeader *full_header,
                         ETableState *state)
{
	ETableHeader *nh;
	GtkStyle *style;
	const gint max_cols = e_table_header_count (full_header);
	gint column;
	GValue *val = g_new0 (GValue, 1);

	g_return_val_if_fail (widget, NULL);
	g_return_val_if_fail (full_header, NULL);
	g_return_val_if_fail (state, NULL);

	style = gtk_widget_get_style (widget);

	nh = e_table_header_new ();
	g_value_init (val, G_TYPE_DOUBLE);
	g_value_set_double (val, e_table_header_width_extras (style));
	g_object_set_property (G_OBJECT(nh), "width_extras", val);
	g_free (val);

	for (column = 0; column < state->col_count; column++) {
		gint col;
		gdouble expansion;
		ETableCol *table_col;

		col = state->columns[column];
		expansion = state->expansions[column];

		if (col >= max_cols)
			continue;

		table_col = e_table_header_get_column (full_header, col);

		if (expansion >= -1)
			table_col->expansion = expansion;

		e_table_header_add_column (nh, table_col, -1);
	}

	return nh;
}

static ETableCol *
et_col_spec_to_col (ETableColumnSpecification *col_spec,
                    ETableExtras *ete,
                    const gchar *domain)
{
	ETableCol *col = NULL;
	ECell *cell = NULL;
	GCompareDataFunc compare = NULL;
	ETableSearchFunc search = NULL;

	if (col_spec->cell)
		cell = e_table_extras_get_cell (ete, col_spec->cell);
	if (col_spec->compare)
		compare = e_table_extras_get_compare (ete, col_spec->compare);
	if (col_spec->search)
		search = e_table_extras_get_search (ete, col_spec->search);

	if (cell && compare) {
		gchar *title = dgettext (domain, col_spec->title);

		title = g_strdup (title);

		if (col_spec->pixbuf && *col_spec->pixbuf) {
			const gchar *icon_name;

			icon_name = e_table_extras_get_icon_name (
				ete, col_spec->pixbuf);
			if (icon_name != NULL) {
				col = e_table_col_new (
					col_spec->model_col,
					title, icon_name,
					col_spec->expansion,
					col_spec->minimum_width,
					cell, compare,
					col_spec->resizable,
					col_spec->disabled,
					col_spec->priority);
			}
		}

		if (col == NULL && col_spec->title && *col_spec->title) {
			col = e_table_col_new (
				col_spec->model_col, title, NULL,
				col_spec->expansion,
				col_spec->minimum_width,
				cell, compare,
				col_spec->resizable,
				col_spec->disabled,
				col_spec->priority);
		}

		col->search = search;
		if (col_spec->sortable && !strcmp(col_spec->sortable, "false"))
			col->sortable = FALSE;
		else
			col->sortable = TRUE;
		g_free (title);
	}
	if (col && col_spec->compare_col != col_spec->model_col)
		g_object_set (col,
			      "compare_col", col_spec->compare_col,
			      NULL);
	return col;
}

ETableHeader *
e_table_spec_to_full_header (ETableSpecification *spec,
                             ETableExtras *ete)
{
	ETableHeader *nh;
	gint column;

	g_return_val_if_fail (spec, NULL);
	g_return_val_if_fail (ete, NULL);

	nh = e_table_header_new ();

	for (column = 0; spec->columns[column]; column++) {
		ETableCol *col = et_col_spec_to_col (
			spec->columns[column], ete, spec->domain);

		if (col) {
			e_table_header_add_column (nh, col, -1);
			g_object_unref (col);
		}
	}

	return nh;
}

static gboolean
check_col (ETableCol *col,
           gpointer user_data)
{
	return col->search ? TRUE : FALSE;
}

ETableCol *
e_table_util_calculate_current_search_col (ETableHeader *header,
                                           ETableHeader *full_header,
                                           ETableSortInfo *sort_info,
                                           gboolean always_search)
{
	gint i;
	gint count;
	ETableCol *col = NULL;
	count = e_table_sort_info_grouping_get_count (sort_info);
	for (i = 0; i < count; i++) {
		ETableSortColumn column = e_table_sort_info_grouping_get_nth (sort_info, i);

		col = e_table_header_get_column (full_header, column.column);

		if (col && col->search)
			break;

		col = NULL;
	}

	if (col == NULL) {
		count = e_table_sort_info_sorting_get_count (sort_info);
		for (i = 0; i < count; i++) {
			ETableSortColumn column = e_table_sort_info_sorting_get_nth (sort_info, i);

			col = e_table_header_get_column (full_header, column.column);

			if (col && col->search)
				break;

			col = NULL;
		}
	}

	if (col == NULL && always_search) {
		col = e_table_header_prioritized_column_selected (header, check_col, NULL);
	}

	return col;
}