path: root/e-util/e-table-one.c

/*
 *
 * 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.
 *
 * 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 General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this 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 "e-table-one.h"

/* Forward Declarations */
static void e_table_one_table_model_init
                    (ETableModelInterface *iface);

G_DEFINE_TYPE_WITH_CODE (
    ETableOne,
    e_table_one,
    G_TYPE_OBJECT,
    G_IMPLEMENT_INTERFACE (
        E_TYPE_TABLE_MODEL,
        e_table_one_table_model_init))

static void
table_one_dispose (GObject *object)
{
    ETableOne *one = E_TABLE_ONE (object);

    if (one->data) {
        gint i;
        gint col_count;

        if (one->source) {
            col_count = e_table_model_column_count (one->source);

            for (i = 0; i < col_count; i++)
                e_table_model_free_value (one->source, i, one->data[i]);
        }

        g_free (one->data);
    }
    one->data = NULL;

    g_clear_object (&one->source);

    /* Chain up to parent's dispose() method. */
    G_OBJECT_CLASS (e_table_one_parent_class)->dispose (object);
}

static gint
table_one_column_count (ETableModel *etm)
{
    ETableOne *one = E_TABLE_ONE (etm);

    if (one->source)
        return e_table_model_column_count (one->source);
    else
        return 0;
}

static gint
table_one_row_count (ETableModel *etm)
{
    return 1;
}

static gpointer
table_one_value_at (ETableModel *etm,
                    gint col,
                    gint row)
{
    ETableOne *one = E_TABLE_ONE (etm);

    if (one->data)
        return one->data[col];
    else
        return NULL;
}

static void
table_one_set_value_at (ETableModel *etm,
                        gint col,
                        gint row,
                        gconstpointer val)
{
    ETableOne *one = E_TABLE_ONE (etm);

    if (one->data && one->source) {
        e_table_model_free_value (one->source, col, one->data[col]);
        one->data[col] = e_table_model_duplicate_value (one->source, col, val);
    }
}

static gboolean
table_one_is_cell_editable (ETableModel *etm,
                            gint col,
                            gint row)
{
    ETableOne *one = E_TABLE_ONE (etm);

    if (one->source)
        return e_table_model_is_cell_editable (one->source, col, -1);
    else
        return FALSE;
}

/* The default for one_duplicate_value is to return the raw value. */
static gpointer
table_one_duplicate_value (ETableModel *etm,
                           gint col,
                           gconstpointer value)
{
    ETableOne *one = E_TABLE_ONE (etm);

    if (one->source)
        return e_table_model_duplicate_value (one->source, col, value);
    else
        return (gpointer) value;
}

static void
table_one_free_value (ETableModel *etm,
                      gint col,
                      gpointer value)
{
    ETableOne *one = E_TABLE_ONE (etm);

    if (one->source)
        e_table_model_free_value (one->source, col, value);
    if (one->data)
        one->data[col] = one->source ? e_table_model_initialize_value (one->source, col) : NULL;
}

static gpointer
table_one_initialize_value (ETableModel *etm,
                            gint col)
{
    ETableOne *one = E_TABLE_ONE (etm);

    if (one->source)
        return e_table_model_initialize_value (one->source, col);
    else
        return NULL;
}

static gboolean
table_one_value_is_empty (ETableModel *etm,
                          gint col,
                          gconstpointer value)
{
    ETableOne *one = E_TABLE_ONE (etm);

    if (one->source)
        return e_table_model_value_is_empty (one->source, col, value);
    else
        return FALSE;
}

static gchar *
table_one_value_to_string (ETableModel *etm,
                           gint col,
                           gconstpointer value)
{
    ETableOne *one = E_TABLE_ONE (etm);

    if (one->source)
        return e_table_model_value_to_string (one->source, col, value);
    else
        return g_strdup ("");
}

static void
e_table_one_class_init (ETableOneClass *class)
{
    GObjectClass *object_class;

    object_class = G_OBJECT_CLASS (class);
    object_class->dispose = table_one_dispose;
}

static void
e_table_one_table_model_init (ETableModelInterface *iface)
{
    iface->column_count = table_one_column_count;
    iface->row_count = table_one_row_count;

    iface->value_at = table_one_value_at;
    iface->set_value_at = table_one_set_value_at;
    iface->is_cell_editable = table_one_is_cell_editable;

    iface->duplicate_value = table_one_duplicate_value;
    iface->free_value = table_one_free_value;
    iface->initialize_value = table_one_initialize_value;
    iface->value_is_empty = table_one_value_is_empty;
    iface->value_to_string = table_one_value_to_string;
}

static void
e_table_one_init (ETableOne *one)
{
}

ETableModel *
e_table_one_new (ETableModel *source)
{
    ETableOne *eto;
    gint col_count;
    gint i;

    eto = g_object_new (E_TYPE_TABLE_ONE, NULL);
    eto->source = source;

    col_count = e_table_model_column_count (source);
    eto->data = g_new (gpointer , col_count);
    for (i = 0; i < col_count; i++) {
        eto->data[i] = e_table_model_initialize_value (source, i);
    }

    if (source)
        g_object_ref (source);

    return (ETableModel *) eto;
}

void
e_table_one_commit (ETableOne *one)
{
    if (one->source) {
        gint empty = TRUE;
        gint col;
        gint cols = e_table_model_column_count (one->source);
        for (col = 0; col < cols; col++) {
            if (!e_table_model_value_is_empty (one->source, col, one->data[col])) {
                empty = FALSE;
                break;
            }
        }
        if (!empty) {
            e_table_model_append_row (one->source, E_TABLE_MODEL (one), 0);
        }
    }
}