Application: gvSIG desktop

/**

 * gvSIG. Desktop Geographic Information System.

 *

 * Copyright (C) 2007-2013 gvSIG Association.

 *

 * 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, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,

 * MA  02110-1301, USA.

 *

 * For any additional information, do not hesitate to contact us

 * at info AT gvsig.com, or visit our website www.gvsig.com.

 */

package org.gvsig.labeling.gui.layerproperties;

import java.beans.PropertyChangeListener;

import javax.swing.JPanel;

import org.gvsig.fmap.dal.exception.DataException;

import org.gvsig.fmap.dal.exception.ReadException;

import org.gvsig.fmap.dal.feature.FeatureType;

import org.gvsig.fmap.mapcontext.layers.vectorial.FLyrVect;

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

public abstract class AbstractLabelingMethodPanel extends JPanel implements PropertyChangeListener {

        public static final String PLACEMENT_CONSTRAINTS = "PLACEMENT_CONSTRAINTS";

        public static final String ALLOW_OVERLAP = "ALLOW_OVERLAP";

        public static final String ZOOM_CONSTRAINTS= "ZOOM_CONSTRAINTS";

        protected FLyrVect layer;

        protected ILabelingMethod method;

        public abstract String getName();

        public abstract Class<? extends ILabelingMethod> getLabelingMethodClass();

        public void setModel(ILabelingMethod method, FLyrVect srcLayer)

                        throws ReadException {

                if (srcLayer == null) {

                        throw new ReadException("FLyrVect is null",

                                        new Exception("FLyrVect is null"));

                }

                this.layer = srcLayer;

                try {

                        if (method!= null && method.getClass().equals(getLabelingMethodClass())) {

                                this.method = method;

                        } else {

                                this.method = getLabelingMethodClass().newInstance();

                        }

                        initializePanel();

                } catch (Exception e) {

                        throw new ReadException(

                                        srcLayer.getFeatureStore().getName(), 

                                        new Exception("Unable to load labeling method. Is it in your classpath?", e)); 

                }

                try {

                        fillPanel(this.method, srcLayer.getFeatureStore().getDefaultFeatureType());

                } catch (DataException de) {

                        throw new ReadException(srcLayer.getFeatureStore().getName(), de);

                }

        }

        protected abstract void initializePanel() ;

        public abstract void fillPanel(

                        ILabelingMethod method,

                        FeatureType ftype) throws ReadException;

        public String toString() {

                return getName();

        }

        public ILabelingMethod getMethod() {

                return method; 

        }

        public boolean equals(Object obj) {

                if (obj == null) return false;

                return getClass().equals(obj.getClass());

        }

}