    001    //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.4_testing/src/org/deegree/graphics/Selector.java $
    002    /*----------------------------------------------------------------------------
    003     This file is part of deegree, http://deegree.org/
    004     Copyright (C) 2001-2009 by:
    005       Department of Geography, University of Bonn
    006     and
    007       lat/lon GmbH
    008
    009     This library is free software; you can redistribute it and/or modify it under
    010     the terms of the GNU Lesser General Public License as published by the Free
    011     Software Foundation; either version 2.1 of the License, or (at your option)
    012     any later version.
    013     This library is distributed in the hope that it will be useful, but WITHOUT
    014     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
    015     FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
    016     details.
    017     You should have received a copy of the GNU Lesser General Public License
    018     along with this library; if not, write to the Free Software Foundation, Inc.,
    019     59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
    020
    021     Contact information:
    022
    023     lat/lon GmbH
    024     Aennchenstr. 19, 53177 Bonn
    025     Germany
    026     http://lat-lon.de/
    027
    028     Department of Geography, University of Bonn
    029     Prof. Dr. Klaus Greve
    030     Postfach 1147, 53001 Bonn
    031     Germany
    032     http://www.geographie.uni-bonn.de/deegree/
    033
    034     e-mail: info@deegree.org
    035    ----------------------------------------------------------------------------*/
    036
    037    package org.deegree.graphics;
    038
    039    import org.deegree.model.spatialschema.Envelope;
    040    import org.deegree.model.spatialschema.Position;
    041
    042    /**
    043     *
    044     * <p>
    045     * ------------------------------------------------------------------------
    046     * </p>
    047     *
    048     * @author <a href="mailto:poth@lat-lon.de">Andreas Poth</a>
    049     * @version $Revision: 18195 $ $Date: 2009-06-18 17:55:39 +0200 (Do, 18. Jun 2009) $
    050     */
    051    public interface Selector {
    052
    053        /**
    054         * adds a Theme to the Selector that shall be notified if something happens.
    055         * @param theme to add.
    056         */
    057        void addTheme( Theme theme );
    058
    059        /**
    060         * @param theme to be removed
    061         * @see Selector#addTheme(Theme)
    062         */
    063        void removeTheme( Theme theme );
    064
    065        /**
    066         * selects all features (display elements) that are located within the submitted bounding box.
    067         * @param boundingbox to select all features within
    068         *
    069         * @return id's of the selected features (display elements)
    070         */
    071        String[] select( Envelope boundingbox );
    072
    073        /**
    074         * selects all features (display elements) that intersects the submitted point. if a feature is
    075         * already selected it remains selected.
    076         * @param position to select the features with.
    077         *
    078         * @return id's of the selected features (display elements)
    079         */
    080        String[] select( Position position );
    081
    082        /**
    083         * selects all features (display elements) that are located within the circle described by the
    084         * position and the radius. if a feature is already selected it remains selected.
    085         * @param position to select al features
    086         * @param radius around the given position
    087         *
    088         * @return id's of the selected features (display elements)
    089         */
    090        String[] select( Position position, double radius );
    091
    092        /**
    093         * selects all features (display elements) that are specified by the submitted ids. if a feature
    094         * is already selected it remains selected.
    095         * @param ids to select
    096         *
    097         * @return ids of the selected features (display elements)
    098         */
    099        String[] select( String[] ids );
    100
    101        /**
    102         * inverts the current selection.
    103         * @return the id's of the inverted selection
    104         */
    105        String[] invertSelection();
    106
    107        /**
    108         * mark all features as unselected
    109         */
    110        void reset();
    111
    112    }