/*

 * Hedgewars for Android. An Android port of Hedgewars, a free turn based strategy game

 * Copyright (C) 2012 Simeon Maxein <smaxein@googlemail.com>

 *

 * 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 2

 * 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, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

 */

package org.hedgewars.hedgeroid.frontlib;

import com.sun.jna.DefaultTypeMapper;

import com.sun.jna.FromNativeContext;

import com.sun.jna.ToNativeContext;

import com.sun.jna.TypeConverter;

import com.sun.jna.TypeMapper;

class AndroidTypeMapper extends DefaultTypeMapper {

    static final int NATIVE_INT_SIZE = 4;

    static final int NATIVE_SIZE_T_SIZE = 4;

    static final int NATIVE_BOOL_SIZE = 1;

    public static final TypeMapper INSTANCE = new AndroidTypeMapper();

    protected AndroidTypeMapper() {

        addTypeConverter(Boolean.class, new BooleanConverter());

        addTypeConverter(NativeSizeT.class, new SizeTConverter());

    }

    private static final class BooleanConverter implements TypeConverter {

        public Class<Byte> nativeType() {

            return Byte.class;

        }

        public Object fromNative(Object value, FromNativeContext context) {

            return ((Byte)value).intValue() != 0 ? Boolean.TRUE : Boolean.FALSE;

        }

        public Object toNative(Object value, ToNativeContext context) {

            return Byte.valueOf((byte)(Boolean.TRUE.equals(value) ? 1 : 0));

        }

    }

    private static final class SizeTConverter implements TypeConverter {

        public Class<Integer> nativeType() {

            return Integer.class;

        }

        public Object fromNative(Object value, FromNativeContext context) {

            return NativeSizeT.valueOf((Integer)value);

        }

        public Object toNative(Object value, ToNativeContext context) {

            return Integer.valueOf(value==null ? 0 : ((NativeSizeT)value).intValue());

        }

    }

}