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/*
 *
 * 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)
 *
 */

#include <config.h>

#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;
}