Application: gvSIG desktop

/*

 * Created on 03-dic-2004

 *

 * TODO To change the template for this generated file go to

 * Window - Preferences - Java - Code Generation - Code and Comments

 */

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

 *

 * Copyright (C) 2004 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

 */

package com.iver.cit.gvsig.gui.toc;

import java.awt.AlphaComposite;

import java.awt.Dimension;

import java.awt.Graphics2D;

import java.awt.Image;

import java.awt.datatransfer.DataFlavor;

import java.awt.datatransfer.UnsupportedFlavorException;

import java.awt.image.BufferedImage;

import java.io.File;

import java.io.IOException;

import java.net.URL;

import javax.swing.Icon;

import javax.swing.ImageIcon;

import com.iver.andami.PluginServices;

import com.iver.cit.gvsig.fmap.layers.FLayer;

import com.iver.cit.gvsig.fmap.layers.FLyrDefault;

/**

 * @author FJP

 *

 * TODO To change the template for this generated type comment go to

 * Window - Preferences - Java - Code Generation - Code and Comments

 */

public class TocItemBranch implements ITocItem {

        private ImageIcon icolayer = null;

        private ImageIcon finalIcon = null;

        private BufferedImage unavailableImg = null;

        private final String defaultIcon = "images/icolayer.PNG";

        private final String unavailableImgPath = "images/unavailable.png";

        private boolean isAvailable = true;

        private FLayer lyr;

        private Dimension sz;

    final public static DataFlavor INFO_FLAVOR =

            new DataFlavor(TocItemBranch.class, "ItemBranch");

    static DataFlavor flavors[] = {INFO_FLAVOR };

        public TocItemBranch(FLayer lyr)

        {

                this.lyr = lyr;

        }

        /* (non-Javadoc)

         * @see com.iver.cit.gvsig.gui.toc.ITocItem#getLabel()

         */

        public String getLabel() {

                /*if (lyr instanceof FLyrVect && ((FLyrVect)lyr).isBroken())

                {

                        return lyr.getName() + "(broken)";

                }

                else*/

                        return lyr.getName();

        }

        /* (non-Javadoc)

         * @see com.iver.cit.gvsig.gui.toc.ITocItem#getIcon()

         */

        public Icon getIcon() {

                // TODO Pedirle el icono a la capa. Por defecto habr? un icono

                // para vectoriales y otro para raster, pero se podr?n cambiar.

                if (finalIcon == null) {

                        this.setIcon(this.lyr.getTocImageIcon());                        

                }

                updateStateIcon();

                return finalIcon;

        }

        private void setIcon(String path) {

                File f = new File(path);

                if (f.exists()) {

                        icolayer = new ImageIcon(f.getAbsolutePath());                        

                } else {

                        URL url =PluginServices.getPluginServices("com.iver.cit.gvsig").getClassLoader().getResource(path);

                        if (url!=null) {                

                                icolayer = new ImageIcon(url);

                                return;

                        }

                }

                updateStateIcon();

        }

        private void updateStateIcon() {

                if (icolayer == null) return;

                if (this.lyr.isAvailable() != this.isAvailable || finalIcon==null) { 

                        if (!this.lyr.isAvailable()) {

                                BufferedImage newImage = new BufferedImage(icolayer.getIconWidth(),icolayer.getIconHeight(),BufferedImage.TYPE_INT_ARGB);                        

                                Graphics2D grp = newImage.createGraphics();                        

                                grp.drawImage(icolayer.getImage(),0,0,null);

                                /*grp.setComposite(AlphaComposite.getInstance(

                                 AlphaComposite.SRC_OVER, (float) 1));*/

                                BufferedImage img = this.getUnavailableImage();

                                grp.drawImage(

                                                img,

                                                0,

                                                icolayer.getIconHeight() -img.getHeight(),

                                                null

                                );

                                this.finalIcon = new ImageIcon(newImage);

                        } else {

                                this.finalIcon = new ImageIcon(icolayer.getImage());

                        }

                        this.isAvailable =(this.lyr.isAvailable());

                }                

        }

        private void setIcon(ImageIcon icon) {

                if (icon!=null) {                

                        icolayer = icon;                        

                } else {

                        this.setIcon(defaultIcon);

                }

                updateStateIcon();

        }

        public FLayer getLayer() {

                return lyr;

        }

        /* (non-Javadoc)

         * @see java.awt.datatransfer.Transferable#getTransferDataFlavors()

         */

        public DataFlavor[] getTransferDataFlavors() {

                return flavors;

        }

        /* (non-Javadoc)

         * @see java.awt.datatransfer.Transferable#isDataFlavorSupported(java.awt.datatransfer.DataFlavor)

         */

        public boolean isDataFlavorSupported(DataFlavor dF) {

                return dF.equals(INFO_FLAVOR);

        }

        /* (non-Javadoc)

         * @see java.awt.datatransfer.Transferable#getTransferData(java.awt.datatransfer.DataFlavor)

         */

        public Object getTransferData(DataFlavor dF) throws UnsupportedFlavorException, IOException {

            if (dF.equals(INFO_FLAVOR)) {

                return this;

              }

              else throw new UnsupportedFlavorException(dF);

        }

        /* (non-Javadoc)

         * @see com.iver.cit.gvsig.gui.toc.ITocItem#getSize()

         */

        public Dimension getSize() {

                return sz;

        }

        /* (non-Javadoc)

         * @see com.iver.cit.gvsig.gui.toc.ITocItem#setSize(java.awt.Dimension)

         */

        public void setSize(Dimension sz) {

                this.sz = sz;

        }

        private BufferedImage getUnavailableImage() {

                if (this.unavailableImg == null) {

                        URL url =PluginServices.getPluginServices("com.iver.cit.gvsig").getClassLoader().getResource(this.unavailableImgPath);

                        if (url!=null) {

                                ImageIcon uIcon = new ImageIcon(url);                                

                                this.unavailableImg = new BufferedImage(uIcon.getIconWidth(),uIcon.getIconHeight(),BufferedImage.TYPE_INT_RGB);

                                this.unavailableImg.getGraphics().drawImage(uIcon.getImage(),0,0,null);

                        }

                }

                return this.unavailableImg;

        }

}