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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

 *

 * Copyright (C) 2005 IVER T.I. and Generalitat Valenciana.

 *

 * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

 *

 * For more information, contact:

 *

 *  Generalitat Valenciana

 *   Conselleria d'Infraestructures i Transport

 *   Av. Blasco Ib??ez, 50

 *   46010 VALENCIA

 *   SPAIN

 *

 *      +34 963862235

 *   gvsig@gva.es

 *      www.gvsig.gva.es

 *

 *    or

 *

 *   IVER T.I. S.A

 *   Salamanca 50

 *   46005 Valencia

 *   Spain

 *

 *   +34 963163400

 *   dac@iver.es

 */

/* CVS MESSAGES:

*

* $Id: ZoomConstraintsImpl.java 10671 2007-03-09 08:33:43Z jaume $

* $Log$

* Revision 1.2  2007-03-09 08:33:43  jaume

* *** empty log message ***

*

* Revision 1.1.2.2  2007/02/15 16:23:44  jaume

* *** empty log message ***

*

* Revision 1.1.2.1  2007/02/09 07:47:05  jaume

* Isymbol moved

*

* Revision 1.1.2.1  2007/01/30 18:10:45  jaume

* start commiting labeling stuff

*

*

*/

package org.gvsig.symbology.fmap.mapcontext.rendering.legend.styling;

import org.gvsig.fmap.mapcontext.rendering.legend.styling.IZoomConstraints;

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.dynobject.DynStruct;

import org.gvsig.tools.persistence.PersistenceManager;

import org.gvsig.tools.persistence.PersistentState;

import org.gvsig.tools.persistence.exception.PersistenceException;

import org.gvsig.tools.util.Callable;

/**

 * @author  jaume dominguez faus - jaume.dominguez@iver.es

 */

public class ZoomConstraintsImpl implements IZoomConstraints {

        private static final String FIELD_MIN_SCALE = "minScale";

        private static final String FIELD_MAX_SCALE = "maxScale";

        private static final String FIELD_MODE = "mode";

        private static final String ZOOM_CONSTRAINTS_IMPL_PERSISTENCE_DEFINITION_NAME =

                        "ZoomConstraintsImpl";

        /**

         * @uml.property  name="mode"

         */

        private int mode = DEFINED_BY_THE_LAYER;

        /**

         * @uml.property  name="minScale"

         */

        private long minScale = -1;

        /**

         * @uml.property  name="maxScale"

         */

        private long maxScale = -1;

        /**

         * @param mode

         * @uml.property  name="mode"

         */

        public void setMode(int mode) {

                if (mode != DEFINED_BY_THE_LAYER &&

                        mode != DEFINED_BY_THE_USER)

                        throw new IllegalArgumentException();

                this.mode = mode;

        }

        /**

         * @return

         * @uml.property  name="maxScale"

         */

        public long getMaxScale() {

                return maxScale;

        }

        /**

         * @param maxScale

         * @uml.property  name="maxScale"

         */

        public void setMaxScale(long maxScale) {

                this.maxScale = maxScale;

        }

        /**

         * @return

         * @uml.property  name="minScale"

         */

        public long getMinScale() {

                return minScale;

        }

        /**

         * @param minScale

         * @uml.property  name="minScale"

         */

        public void setMinScale(long minScale) {

                this.minScale = minScale;

        }

        public boolean isUserDefined() {

                return mode == DEFINED_BY_THE_USER;

        }

        public boolean isLayerDefined() {

                return mode == DEFINED_BY_THE_LAYER;

        }

        public void loadFromState(PersistentState state)

                        throws PersistenceException {

                setMode(state.getInt(FIELD_MODE));

                setMaxScale(state.getLong(FIELD_MAX_SCALE));

                setMinScale(state.getLong(FIELD_MIN_SCALE));

        }

        public void saveToState(PersistentState state) throws PersistenceException {

                state.set(FIELD_MODE, mode);

                state.set(FIELD_MAX_SCALE, getMaxScale());

                state.set(FIELD_MIN_SCALE, getMinScale());

        }

        public static class RegisterPersistence implements Callable {

                public Object call() throws Exception {

                        PersistenceManager manager = ToolsLocator.getPersistenceManager();

                        if( manager.getDefinition(ZOOM_CONSTRAINTS_IMPL_PERSISTENCE_DEFINITION_NAME)==null ) {

                                DynStruct definition = manager.addDefinition(

                                                ZoomConstraintsImpl.class,

                                                ZOOM_CONSTRAINTS_IMPL_PERSISTENCE_DEFINITION_NAME,

                                                ZOOM_CONSTRAINTS_IMPL_PERSISTENCE_DEFINITION_NAME+" Persistence definition",

                                                null, 

                                                null

                                );

                                definition.addDynFieldInt(FIELD_MODE).setMandatory(true);

                                definition.addDynFieldLong(FIELD_MIN_SCALE).setMandatory(true);

                                definition.addDynFieldLong(FIELD_MAX_SCALE).setMandatory(true);

                        }

                        return Boolean.TRUE;

                }

        }

}