/*  DreamChess
**
**  DreamChess is the legal property of its developers, whose names are too
**  numerous to list here. Please refer to the COPYRIGHT file distributed
**  with this source distribution.
**
**  This program is free software: you can redistribute it and/or modify
**  it under the terms of the GNU General Public License as published by
**  the Free Software Foundation, either version 3 of the License, or
**  (at your option) any later version.
**
**  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 General Public License
**  along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#include <gamegui/select.h>

gg_class_id gg_select_get_class_id(void)
{
    GG_CHILD(gg_container_get_class_id())
}

void gg_select_init(gg_select_t *select)
{
    gg_container_init((gg_container_t *) select);

    select->id = gg_select_get_class_id();
    select->sel = -1;
}

int gg_select_prev(gg_select_t *select, int input, int enabled)
{
    int sel = select->sel - 1;

    while (sel >= 0)
    {
        gg_widget_t *child = gg_container_get_child(GG_CONTAINER(select), sel);

        if ((enabled && !child->enabled)
                || (input && !child->input))
            sel--;
        else
            break;
    }

    if (sel >= 0)
    {
        select->sel = sel;
        return 1;
    }

    return 0;
}

int gg_select_next(gg_select_t *select, int input, int enabled)
{
    int sel = select->sel + 1;
    int size = gg_container_get_size(GG_CONTAINER(select));

    while (sel < size)
    {
        gg_widget_t *child = gg_container_get_child(GG_CONTAINER(select), sel);

        if ((enabled && !child->enabled)
                || (input && !child->input))
            sel++;
        else
            break;
    }

    if (sel < size)
    {
        select->sel = sel;
        return 1;
    }

    return 0;
}
