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/* gvSIG. Geographic Information System of the Valencian Government

 *

 * Copyright (C) 2007-2008 Infrastructures and Transports Department

 * of the Valencian Government (CIT)

 * 

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

 * MA  02110-1301, USA.

 * 

 */

package org.gvsig.symbology.fmap.mapcontext.rendering.symbol.fill.impl;

import java.awt.Color;

import java.awt.Graphics2D;

import java.awt.Rectangle;

import java.awt.geom.AffineTransform;

import org.gvsig.compat.print.PrintAttributes;

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

import org.gvsig.fmap.geom.Geometry;

import org.gvsig.fmap.geom.Geometry.SUBTYPES;

import org.gvsig.fmap.geom.GeometryLocator;

import org.gvsig.fmap.geom.GeometryManager;

import org.gvsig.fmap.geom.exception.CreateGeometryException;

import org.gvsig.fmap.geom.primitive.GeneralPathX;

import org.gvsig.fmap.mapcontext.MapContextLocator;

import org.gvsig.fmap.mapcontext.rendering.symbols.ISymbol;

import org.gvsig.fmap.mapcontext.rendering.symbols.SymbolDrawingException;

import org.gvsig.fmap.mapcontext.rendering.symbols.SymbolManager;

import org.gvsig.symbology.fmap.mapcontext.rendering.symbol.fill.IFillSymbol;

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.task.Cancellable;

import org.gvsig.tools.util.Callable;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

/**

 * Basic fill symbol. It will allow to paint a shape with its filling color (and transparency) and the outline.

 * @author 2005-2008  jaume dominguez faus - jaume.dominguez@iver.es

 * @author 2009-     <a href="cordinyana@gvsig.org">C?sar Ordi?ana</a> - gvSIG team

 */

public class SimpleFillSymbol extends AbstractFillSymbol {

        private static final String SIMPLE_FILL_SYMBOL_PERSISTENCE_DEFINITION_NAME = "SimpleFillSymbol";

        private static final Logger LOG = LoggerFactory.getLogger(SimpleFillSymbol.class);

        private static final GeometryManager geomManager = GeometryLocator.getGeometryManager();

    private static final String FIELD_SYMBOL_FOR_SELECTION = "symbolForSelection";

        private SimpleFillSymbol symbolForSelection;

        public ISymbol getSymbolForSelection() {

                if (symbolForSelection == null) {

                        SimpleFillSymbol selectionSymbol = (SimpleFillSymbol) cloneForSelection();

                        if (selectionSymbol != null) {

                                selectionSymbol.setHasFill(true);

                                setSymbolForSelection(selectionSymbol);

                        }

                }

                return symbolForSelection;

        }

        public void draw(Graphics2D g, AffineTransform affineTransform,

                        Geometry geom, Feature feature, Cancellable cancel) {

                Color c = getFillColor();

                if (c!=null && hasFill()) {

                        g.setColor(c);

                        g.fill(geom);

                }

                if (getOutline() != null && hasOutline()) {

                        getOutline().draw(g, affineTransform, geom, feature, cancel);

                }

        }

        public int getSymbolType() {

                return Geometry.TYPES.SURFACE;

        }

        public void drawInsideRectangle(Graphics2D g,

                        AffineTransform scaleInstance, Rectangle r, PrintAttributes properties) throws SymbolDrawingException {

                Rectangle rect = new Rectangle(r.x, r.y, r.width, r.height);

                rect.setFrame(((int) rect.getMinX())+1, ((int) rect.getMinY())+1, ((int) rect.getWidth())-2, ((int) rect.getHeight())-2);

                Geometry geom;

                try {

                        geom = geomManager.createSurface(new GeneralPathX(rect.getPathIterator(null)), SUBTYPES.GEOM2D);

                } catch (CreateGeometryException e) {

                        LOG.error("Creating a surface", e);

                        throw new SymbolDrawingException(getSymbolType());

                }

                Color c = getFillColor();

                if (c != null && hasFill()) {

                        g.setColor(c);

                        g.fillRect(rect.x, rect.y, rect.width, rect.height);

                }

                if (getOutline() != null && hasOutline()) {

                        if (properties==null)

                                getOutline().draw(g, scaleInstance, geom, null, null);

                        else

                                print(g, new AffineTransform(), geom, properties);

                }

        }

        public String getClassName() {

                return getClass().getName();

        }

        public void print(Graphics2D g, AffineTransform at, Geometry geom, PrintAttributes properties) {

                Color c = getFillColor();

                if (c!=null && hasFill()) {

                        g.setColor(c);

                        g.fill(geom);

                }

                if (getOutline() != null && hasOutline()) {

                        getOutline().print(g, at, geom, properties);

                }

        }

        public Object clone() throws CloneNotSupportedException {

                SimpleFillSymbol copy = (SimpleFillSymbol) super.clone();

                // Clone selection

                if (symbolForSelection != null) {

                        copy.symbolForSelection = (SimpleFillSymbol) symbolForSelection

                                        .clone();

                }

                return copy;

        }

        private void setSymbolForSelection(SimpleFillSymbol symbolForSelection) {

                this.symbolForSelection = symbolForSelection;

        }

        public void loadFromState(PersistentState state)

                        throws PersistenceException {

                // Set parent fill symbol properties

                super.loadFromState(state);

//                LOG.warn("FIXME, need to implement loadFromState");

                 setSymbolForSelection((SimpleFillSymbol)state.get(FIELD_SYMBOL_FOR_SELECTION));

        }

        public void saveToState(PersistentState state) throws PersistenceException {

                // Save parent fill symbol properties

                super.saveToState(state);

//                LOG.warn("FIXME, need to implement saveToState");

                // Don't use the getSymbolForSelection method, as it will create it

                // if it does not exist, and persistence will enter an infinite loop

                 state.set(FIELD_SYMBOL_FOR_SELECTION, symbolForSelection);

        }

        public static class RegisterPersistence implements Callable {

                public Object call() throws Exception {

                        PersistenceManager manager = ToolsLocator.getPersistenceManager();

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

                                DynStruct definition = manager.addDefinition(

                                                SimpleFillSymbol.class,

                                                SIMPLE_FILL_SYMBOL_PERSISTENCE_DEFINITION_NAME,

                                                SIMPLE_FILL_SYMBOL_PERSISTENCE_DEFINITION_NAME+" Persistence definition",

                                                null, 

                                                null

                                );

                                // Extend the FillSymbol base definition

                                definition.extend(manager.getDefinition(FILL_SYMBOL_PERSISTENCE_DEFINITION_NAME));

                                // Selection Symbol

                                // definition.addDynFieldSingle(FIELD_SYMBOL_FOR_SELECTION).setType(

                                // DataTypes.OBJECT);

                                definition.addDynFieldObject(FIELD_SYMBOL_FOR_SELECTION).setClassOfValue(SimpleFillSymbol.class).setMandatory(false);

                        }

                        return Boolean.TRUE;

                }

        }

        public static class RegisterSymbol implements Callable {

                public Object call() throws Exception {

                int[] shapeTypes;

                SymbolManager manager = MapContextLocator.getSymbolManager();

                shapeTypes =

                    new int[] { Geometry.TYPES.SURFACE, Geometry.TYPES.CIRCLE,

                        Geometry.TYPES.ELLIPSE, Geometry.TYPES.MULTISURFACE };

                manager.registerSymbol(IFillSymbol.SYMBOL_NAME,

                    shapeTypes,

                    SimpleFillSymbol.class);

                        return Boolean.TRUE;

                }

        }

}