ViewportListener.java example

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ceres-master
/*
 * Copyright (C) 2010 Brockmann Consult GmbH (info@brockmann-consult.de)
 *
 * 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/
 */

package com.bc.ceres.grender;

/**
 * A change listener which can be added to viewports.
 */
public interface ViewportListener {
    // todo - declare flags: int ORIENTATION=0x01,OFFSET=0x02,SCALE=0x04;  (nf - 25.03.2009)
    // todo - replace orientationChanged by changeMask and use flags (nf - 25.03.2009)
    /**
     * Called if the given viewport has changed.
     *
     * @param viewport The viewport.
     * @param orientationChanged true, if the viewport's orientation has changed.
     */
    void handleViewportChanged(Viewport viewport, boolean orientationChanged);
}