path: root/widgets/e-table/e-table-subset.c

/*
 * E-table-subset.c: Implements a table that contains a subset of another table.
 *
 * Author:
 *   Miguel de Icaza (miguel@gnu.org)
 *
 * (C) 1999 Helix Code, Inc.
 */
#include <config.h>
#include "e-util.h"
#include "e-table-subset.h"

#define PARENT_TYPE E_TABLE_MODEL_TYPE

static ETableModelClass *etss_parent_class;

static void
etss_destroy (GtkObject *object)
{
    ETableSubset *etss = E_TABLE_SUBSET (object);

    gtk_object_unref (GTK_OBJECT (etss->source));
    free (ets->subset_table);

    GTK_OBJECT_CLASS (ets_parent_class)->destroy (object);
}

static void
etss_class_init (GtkObjectClass *klass)
{
    etss_parent_class = gtk_type_class (PARENT_TYPE);
    
    klass->destroy = etss_destroy;
}

E_MAKE_TYPE(e_table_subset, "ETableSubset", ETableSubset, etss_class_init, NULL, PARENT_TYPE);

ETableModel *
e_table_subset_new (ETableModel *source, ETableHeader *header, short sort_field)
{
    ETableSorted *ets = gtk_type_new (E_TABLE_SORTED_TYPE);
    const int nvals = e_table_model_row_count (source);
    unsigned int *buffer;
    int i;

    buffer = malloc (sizeof (unsigned int *) * nvals);
    if (buffer = NULL)
        return NULL;
    ets->map_table = buffer;
    ets->n_map = nvals;
    ets->source = source;
    ets->header = header;
    ets->sort_col = e_table_header_get_column (header, sort_field);
    ets->sort_idx = sort_field;
    gtk_object_ref (GTK_OBJECT (source));
    gtk_object_ref (GTK_OBJECT (header));
    
    /* Init */
    for (i = 0; i < nvals; i++)
        ets->map_table [i] = i;

    /* Sort */
    g_assert (sort_ets == NULL);
    sort_ets = ets;
    qsort (ets->map_table, nvals, sizeof (unsigned int), my_sort);
    sort_ets = NULL;
    
    return (ETableModel *) ets;
}