Application: gvSIG desktop

/* 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: PictureMarkerSymbol.java 15593 2007-10-29 13:01:13Z jdominguez $

 * $Log$

 * Revision 1.17  2007-09-21 12:25:32  jaume

 * cancellation support extended down to the IGeometry and ISymbol level

 *

 * Revision 1.16  2007/09/19 16:22:04  jaume

 * removed unnecessary imports

 *

 * Revision 1.15  2007/09/11 07:46:55  jaume

 * *** empty log message ***

 *

 * Revision 1.14  2007/08/16 06:55:19  jvidal

 * javadoc updated

 *

 * Revision 1.13  2007/08/09 06:42:24  jvidal

 * javadoc

 *

 * Revision 1.12  2007/08/08 12:05:17  jvidal

 * javadoc

 *

 * Revision 1.11  2007/07/18 06:54:35  jaume

 * continuing with cartographic support

 *

 * Revision 1.10  2007/07/03 10:58:29  jaume

 * first refactor on CartographicSupport

 *

 * Revision 1.9  2007/06/29 13:07:01  jaume

 * +PictureLineSymbol

 *

 * Revision 1.8  2007/06/11 12:25:48  jaume

 * ISymbol drawing integration tests (markers and lines)

 *

 * Revision 1.7  2007/06/07 06:50:40  jaume

 * *** empty log message ***

 *

 * Revision 1.6  2007/05/29 15:46:37  jaume

 * *** empty log message ***

 *

 * Revision 1.5  2007/05/08 08:47:40  jaume

 * *** empty log message ***

 *

 * Revision 1.4  2007/03/21 17:36:22  jaume

 * *** empty log message ***

 *

 * Revision 1.3  2007/03/09 11:20:57  jaume

 * Advanced symbology (start committing)

 *

 * Revision 1.1.2.4  2007/02/21 07:34:09  jaume

 * labeling starts working

 *

 * Revision 1.1.2.3  2007/02/16 10:54:12  jaume

 * multilayer splitted to multilayerline, multilayermarker,and  multilayerfill

 *

 * 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  2007/01/24 17:58:22  jaume

 * new features and architecture error fixes

 *

 *

 */

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

import java.awt.Graphics2D;

import java.awt.Rectangle;

import java.awt.geom.AffineTransform;

import java.io.IOException;

import java.net.URL;

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

import org.gvsig.fmap.geom.Geometry;

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.i18n.Messages;

import org.gvsig.symbology.fmap.mapcontext.rendering.symbol.marker.IPictureMarkerSymbol;

import org.gvsig.symbology.fmap.mapcontext.rendering.symbol.style.BackgroundFileStyle;

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;

/**

 * PictureMarkerSymbol allows to use an image file as a definition to be painted

 * instead of a marker symbol.

 */

public class PictureMarkerSymbol extends AbstractMarkerSymbol implements IPictureMarkerSymbol {

    private final Logger LOG =

        LoggerFactory.getLogger(PictureMarkerSymbol.class);

    public static final String PICTURE_MARKER_SYMBOL_PERSISTENCE_DEFINITION_NAME =

        "PictureMarkerSymbol";

    private static final String SELECTED = "selected";

    private static final String SELECTION_SYMBOL = "selectionSym";

    private static final String BACKGROUND_IMAGE = "bgImage";

    private static final String BACKGROUND_SELECTION_IMAGE = "bgSelImage";

//    private static final float SELECTION_OPACITY_FACTOR = .3F;

    private boolean selected;

    private PictureMarkerSymbol selectionSym;

    private BackgroundFileStyle bgImage;

    private BackgroundFileStyle bgSelImage;

    /**

     * Constructor method

     */

    public PictureMarkerSymbol() {

        super();

        setSize(18);

    }

    /**

     * Constructor method

     * 

     * @param imageURL

     *            , URL of the normal image

     * @param selImageURL

     *            , URL of the image when it is selected in the map

     * @throws IOException

     */

    public PictureMarkerSymbol(URL imageURL, URL selImageURL) throws IOException {

        setImage(imageURL);

        if (selImageURL != null)

            setSelImage(selImageURL);

        else

            setSelImage(imageURL);

    }

    /**

     * Sets the file for the image to be used as a marker symbol

     * 

     * @param imageFile

     *            , File

     * @throws IOException

     */

    public void setImage(URL imageUrl) throws IOException {

        bgImage = BackgroundFileStyle.createStyleByURL(imageUrl);

    }

    /**

     * Sets the file for the image to be used as a marker symbol (when it is

     * selected in the map)

     * 

     * @param imageFile

     *            , File

     * @throws IOException

     */

    public void setSelImage(URL imageFileUrl) throws IOException {

        bgSelImage = BackgroundFileStyle.createStyleByURL(imageFileUrl);

    }

    public ISymbol getSymbolForSelection() {

        if (selectionSym == null) {

            try {

                selectionSym = (PictureMarkerSymbol) this.clone();

            } catch (CloneNotSupportedException e) {

                LOG.error("Error creating the selection symbol for the symbol "

                    + this, e);

            }

            selectionSym.selected = true;

            selectionSym.selectionSym = selectionSym; // avoid too much lazy

                                                      // creations

        }

        return selectionSym;

    }

    public void draw(Graphics2D g,

        AffineTransform affineTransform,

        Geometry geom,

        Feature f,

        Cancellable cancel) {

                org.gvsig.fmap.geom.primitive.Point p = (org.gvsig.fmap.geom.primitive.Point)geom.cloneGeometry();

                if (affineTransform!=null) {

                        p.transform(affineTransform);

                }

        double x, y;

        int size = (int) Math.round(getSize());

        double halfSize = getSize() / 2;

        x = p.getX() - halfSize;

        y = p.getY() - halfSize;

        int xOffset = (int) getOffset().getX();

        int yOffset = (int) getOffset().getY();

        if (size > 0) {

            BackgroundFileStyle bg = (!selected) ? bgImage : bgSelImage;

            Rectangle rect = new Rectangle(size, size);

            g.translate(x + xOffset, y + yOffset);

            double auxRotation = getRotation();

            g.rotate(auxRotation, halfSize, halfSize);

            if (bg != null) {

                try {

                    bg.drawInsideRectangle(g, rect);

                } catch (SymbolDrawingException e) {

                    LOG.warn(Messages.getText("label_style_could_not_be_painted")

                        + ": " + bg.getSource().toString(),

                        e);

                }

            } else {

                LOG.warn(Messages.getText("label_style_could_not_be_painted")

                    + ": bg is Null");

            }

            g.rotate(-auxRotation, halfSize, halfSize);

            g.translate(-(x + xOffset), -(y + yOffset));

        }

    }

    public String getClassName() {

        return getClass().getName();

    }

    // public void print(Graphics2D g, AffineTransform at, FShape shape)

    // throws ReadDriverException {

    // // TODO Implement it

    // throw new Error("Not yet implemented!");

    //

    // }

     /**

      * Returns the URL of the image that is used as a marker symbol

      * @return imagePath,URL

      */

    public URL getSource() {

            return bgImage.getSource();

    }

    /**

     * Returns the URL of the image that is used as a marker symbol (when it

     is selected in the map)

     * @return selimagePath,URL

     */

    public URL getSelectedSource(){

            return bgSelImage.getSource();

    }

    public Object clone() throws CloneNotSupportedException {

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

        // clone selection

        if (selectionSym != null) {

                //to avoid an infinite loop

                if (this == selectionSym){

                        copy.selectionSym = copy;

                } else {

                        copy.selectionSym = (PictureMarkerSymbol) selectionSym.clone();

                }

        }

        // clone brackground image

        if (bgImage != null) {

            copy.bgImage = (BackgroundFileStyle) bgImage.clone();

        }

        // clone selection brackground image

        if (bgSelImage != null) {

            copy.bgSelImage = (BackgroundFileStyle) bgSelImage.clone();

        }

        return copy;

    }

    public void loadFromState(PersistentState state) throws PersistenceException {

        // Set parent style properties

        super.loadFromState(state);

        this.selected = (Boolean) state.get(SELECTED);

        this.selectionSym = (PictureMarkerSymbol) state.get(SELECTION_SYMBOL);

        this.bgImage = (BackgroundFileStyle) state.get(BACKGROUND_IMAGE);

        this.bgSelImage =

            (BackgroundFileStyle) state.get(BACKGROUND_SELECTION_IMAGE);

    }

    public void saveToState(PersistentState state) throws PersistenceException {

        // Save parent fill symbol properties

        super.saveToState(state);

        // Save own properties

        state.set(SELECTED, this.selected);

        state.set(SELECTION_SYMBOL, this.getSymbolForSelection());

        state.set(BACKGROUND_IMAGE, this.bgImage);

        state.set(BACKGROUND_SELECTION_IMAGE, this.bgSelImage);

    }

    public static class RegisterPersistence implements Callable {

        public Object call() throws Exception {

            PersistenceManager manager = ToolsLocator.getPersistenceManager();

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

                DynStruct definition =

                    manager.addDefinition(PictureMarkerSymbol.class,

                        PICTURE_MARKER_SYMBOL_PERSISTENCE_DEFINITION_NAME,

                        PICTURE_MARKER_SYMBOL_PERSISTENCE_DEFINITION_NAME

                            + " Persistence definition",

                        null,

                        null);

                // Extend the Style base definition

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

                definition.addDynFieldBoolean(SELECTED).setMandatory(false);

                definition.addDynFieldObject(SELECTION_SYMBOL).setMandatory(false)

                    .setClassOfValue(PictureMarkerSymbol.class).setMandatory(false);

                definition.addDynFieldObject(BACKGROUND_IMAGE)

                    .setClassOfValue(BackgroundFileStyle.class).setMandatory(false);

                definition.addDynFieldObject(BACKGROUND_SELECTION_IMAGE)

                    .setClassOfValue(BackgroundFileStyle.class).setMandatory(false);

            }

            return Boolean.TRUE;

        }

    }

        public static class RegisterSymbol implements Callable {

                public Object call() throws Exception {

                        SymbolManager manager = MapContextLocator.getSymbolManager();

                manager.registerSymbol(PictureMarkerSymbol.PICTURE_MARKER_SYMBOL_PERSISTENCE_DEFINITION_NAME,

                    PictureMarkerSymbol.class);

                        return Boolean.TRUE;

                }

        }

}