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.symbology.fmap.mapcontext.rendering.symbol.style;

import java.awt.Component;

import java.awt.Graphics2D;

import java.awt.Rectangle;

import java.io.File;

import java.io.IOException;

import java.net.MalformedURLException;

import java.net.URL;

import org.gvsig.expressionevaluator.SymbolTable;

import org.gvsig.fmap.mapcontext.MapContextLocator;

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

import org.gvsig.fmap.mapcontext.rendering.symbols.styles.IBackgroundFileStyle;

import org.gvsig.tools.ToolsLocator;

import org.gvsig.tools.dynobject.DynStruct;

import org.gvsig.tools.persistence.PersistenceManager;

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

import org.gvsig.tools.util.Callable;

/**

 * Defines methods that allows the user to create an style based in a

 * background file.For this reason, BackgroundFileStyle will

 * have a parameter that will be an string in order to specify this source file.

 *

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

 */

public abstract class BackgroundFileStyle extends AbstractStyle

implements IBackgroundFileStyle {

    public static final String BACKGROUND_FILE_STYLE_PERSISTENCE_DEFINITION_NAME = "BackgroundFileStyle";

    protected static final String SOURCE_SYMBOL_IN_LIBRARY = "sourceSymbolInLibrary";

    public static BackgroundFileStyle createStyleByURL(URL url) throws IOException {

        BackgroundFileStyle bgImage;

        String l = url.toString().toLowerCase();

        if (l.startsWith("http://") ||

            l.startsWith("https://"))  {

            bgImage = new RemoteFileStyle();

        } else if (l.toLowerCase().endsWith(".svg")) {

            bgImage = new SVGStyle();

        } else {

            bgImage = new ImageStyle();

        }

        bgImage.setSource(url);

        return bgImage;

    }

    protected URL source;

    protected SymbolTable symbolTable;

    /**

     * Sets the file that is used as a source to create the Background

     * @param f, File

     * @throws IOException

     */

    public abstract void setSource(URL url) throws IOException;

    /**

     * Gets the bounding <code>Rectangle</code> of this <code>Rectangle</code>.

     * <p>

     * This method is included for completeness, to parallel the

     * <code>getBounds</code> method of

     * {@link Component}.

     * @return    a new <code>Rectangle</code>, equal to the

     * bounding <code>Rectangle</code> for this <code>Rectangle</code>.

     * @see       java.awt.Component#getBounds

     * @see       #setBounds(Rectangle)

     * @see       #setBounds(int, int, int, int)

     * @since     JDK1.1

     */

    public abstract Rectangle getBounds();

    /**

     * Obtains the source of the file which is used to create the background

     * @return

     */

    public final URL getSource() {

        return source;

    }

    public final void drawInsideRectangle(Graphics2D g, Rectangle r) throws SymbolDrawingException {

        drawInsideRectangle(g, r, true);

    }

    public abstract void drawInsideRectangle(Graphics2D g, Rectangle r, boolean keepAspectRatio) throws SymbolDrawingException ;

    public Object clone() throws CloneNotSupportedException {

        return super.clone();

    }

    protected boolean isLibrarySymbol() {

            return source.toString().startsWith(getSymbolLibraryURL().toString());

    }

    protected URL getSymbolLibraryURL(){

            String symbolLibraryPath = MapContextLocator.getSymbolManager().getSymbolPreferences().getSymbolLibraryPath();

            URL symbolLibraryURL = null;

            try {

                        symbolLibraryURL = new File(symbolLibraryPath).toURI().toURL();

                } catch (MalformedURLException e) {

                        new RuntimeException(e);

                }

            return symbolLibraryURL;

    }

    /**

     * Return the final substring of the URL symbol in the library

     * 

     * @return

     */

    protected String getSourceSymbolInLibrary(){

            return source.toString().substring(getSymbolLibraryURL().toString().length());

    }

    @Override

    public void setSymbolTable(SymbolTable symbolTable) {

        this.symbolTable = symbolTable;

    }

    public static class RegisterPersistence implements Callable {

        public Object call() throws Exception {

            PersistenceManager manager = ToolsLocator.getPersistenceManager();

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

                DynStruct definition = manager.addDefinition(

                    BackgroundFileStyle.class,

                    BACKGROUND_FILE_STYLE_PERSISTENCE_DEFINITION_NAME,

                    BACKGROUND_FILE_STYLE_PERSISTENCE_DEFINITION_NAME+" Persistence definition",

                    null, 

                    null

                );

                // Extend the Style base definition

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

            }

            return Boolean.TRUE;

        }

    }

    public class PersistenceCantSetSourceException extends PersistenceException{

        /**

         * 

         */

        private static final long serialVersionUID = -3783412193739147977L;

        /**

         * 

         */

        private final static String MESSAGE_FORMAT = "Can't set source file.";

        private final static String MESSAGE_KEY = "_PersistenceCantSetSourceException";

        public PersistenceCantSetSourceException() {

            super(MESSAGE_FORMAT, MESSAGE_KEY, serialVersionUID);

        }

        public PersistenceCantSetSourceException(Throwable cause) {

            super(MESSAGE_FORMAT, cause, MESSAGE_KEY, serialVersionUID);

        }

    }

}