TASKPM/ganttzk/src/main/java/org/zkoss/ganttz/IDatesMapper.java

/*
 * This file is part of NavalPlan
 *
 * Copyright (C) 2009-2010 Fundación para o Fomento da Calidade Industrial e
 *                         Desenvolvemento Tecnolóxico de Galicia
 * Copyright (C) 2010-2011 Igalia, S.L.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.zkoss.ganttz;

import org.apache.commons.lang.math.Fraction;
import org.joda.time.LocalDate;
import org.joda.time.ReadableDuration;
import org.zkoss.ganttz.util.Interval;

public interface IDatesMapper {

    final long MILISECONDS_PER_HOUR = 3600000;

    int toPixels(LocalDate date);

    LocalDate toDate(int pixel);

    int toPixels(ReadableDuration duration);

    ReadableDuration toDuration(int pixels);

    int toPixelsAbsolute(long milliseconds);

    long getMilisecondsPerPixel();

    int getHorizontalSize();

    Fraction getPixelsPerDay();

    Interval getInterval();
}