| gvSIG desktop 1

/*

 * Created on 26-abr-2005

 *

 * 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 org.gvsig.app.gui.styling;

import java.awt.BorderLayout;

import java.awt.Component;

import java.awt.Graphics;

import java.awt.Graphics2D;

import java.awt.Rectangle;

import java.awt.RenderingHints;

import java.awt.image.BufferedImage;

import java.io.File;

import javax.swing.JLabel;

import javax.swing.JList;

import javax.swing.JPanel;

import javax.swing.ListCellRenderer;

import org.apache.batik.bridge.BridgeContext;

import org.apache.batik.bridge.DocumentLoader;

import org.apache.batik.bridge.GVTBuilder;

import org.apache.batik.bridge.UserAgentAdapter;

import org.apache.batik.bridge.ViewBox;

import org.apache.batik.gvt.GraphicsNode;

import org.apache.batik.gvt.renderer.StaticRenderer;

import org.w3c.dom.Document;

import org.w3c.dom.Element;

import org.w3c.dom.svg.SVGDocument;

/**

*

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

*

*/

public class SLDListBoxCellRenderer extends JPanel implements ListCellRenderer {

    /**

         * 

         */

        private static final long serialVersionUID = 1458566622433802796L;

        private String str;

    private GVTBuilder gvtBuilder = new GVTBuilder();

    private StaticRenderer renderer = new StaticRenderer();

    private Element elt;

    private GraphicsNode gvtRoot;

    DocumentLoader loader;

    private UserAgentAdapter userAgent;

    BridgeContext  ctx;

    BufferedImage image;

    protected static RenderingHints defaultRenderingHints;

    static {

        defaultRenderingHints = new RenderingHints(null);

        defaultRenderingHints.put(RenderingHints.KEY_ANTIALIASING,

                                  RenderingHints.VALUE_ANTIALIAS_ON);

        defaultRenderingHints.put(RenderingHints.KEY_INTERPOLATION,

                                  RenderingHints.VALUE_INTERPOLATION_BILINEAR);

    }

    /**

     * Constructor method

     *

     */

    public SLDListBoxCellRenderer() {

        setOpaque(true);

        setLayout(new BorderLayout(3,3));

        userAgent = new UserAgentAdapter();

        loader    = new DocumentLoader(userAgent);

        ctx       = new BridgeContext(userAgent, loader);

        renderer.setDoubleBuffered(true);

        /* canvas = new JSVGCanvas();

        // canvas.setMySize(getWidth()-3, getHeight()-3);

        canvas.setMySize(new Dimension(getWidth()-3, getHeight()-3));

        // add(canvas,BorderLayout.CENTER);

        canvas.setVisible(true); */

        /* setHorizontalAlignment(CENTER);

        setVerticalAlignment(CENTER); */

    }

    public Component getListCellRendererComponent(JList list, Object value,

            int index, boolean isSelected, boolean cellHasFocus) {

//      Get the selected index. (The index param isn't

//      always valid, so just use the value.)

      String selectedSymbol = ((String)value).toString();

      str = selectedSymbol;

      if (isSelected) {

          setBackground(list.getSelectionBackground());

          setForeground(list.getSelectionForeground());

      } else {

          setBackground(list.getBackground());

          setForeground(list.getForeground());

      }

      /* try {

          canvas.setURI( new File("D:/java/eclipse30/eclipse/workspace/FMap 03/docs/fill1.svg").toURL().toString() );

      } catch (MalformedURLException e1) {

          // TODO Auto-generated catch block

          e1.printStackTrace();

      } */

      gvtRoot = null;

      try

      {

          File f = new File(str);

          Document svgDoc = loader.loadDocument(f.toURI().toString());

          gvtRoot = gvtBuilder.build(ctx, svgDoc);

          renderer.setTree(gvtRoot);

          elt = ((SVGDocument)svgDoc).getRootElement();

      } catch (Exception ex) {

          ex.printStackTrace();

      }

//      Set the icon and text.  If icon was null, say so.

      // ImageIcon icon = images[selectedIndex];

      String pet = selectedSymbol; // petStrings[selectedIndex];

      /* setIcon(icon);

      if (icon != null) { */

          // setText(pet);

          setFont(list.getFont());

          repaint();

      /* } else {

          // setUhOhText(pet + " (no image available)", list.getFont());

      } */

      return this;

    }

    /* (non-Javadoc)

     * @see javax.swing.JComponent#paintComponent(java.awt.Graphics)

     */

    protected void paintComponent(Graphics g) {

        super.paintComponent(g);

        /* renderer.setTransform

        (ViewBox.getViewTransform

         (null, elt, getWidth()-1, getHeight()-1));

        renderer.updateOffScreen(getWidth()-1,

                                 getHeight()-1);

        Rectangle r = new Rectangle(0, 0,

                                    getWidth()-1,

                                    getHeight()-1);

        renderer.repaint(r);

        image = renderer.getOffScreen();

        g.drawImage(image,0,0, null); */

        Graphics2D g2 = (Graphics2D) g;

        RenderingHints renderingHints = defaultRenderingHints;

        g2.setRenderingHints(renderingHints);

        try {

                gvtRoot.setTransform((ViewBox.getViewTransform(null, elt, getWidth()-1, getHeight()-1, ctx)));

                gvtRoot.paint(g2);

        } catch (Exception e) {

                Rectangle bounds = getBounds();

                JLabel errLbl = new JLabel("<html><b>"+"Cannot render north"+/*PluginServices.getText(this, "cannot_render_north")+*/"</b></html>");

                errLbl.setPreferredSize(bounds.getSize());

                errLbl.setSize(bounds.getSize());

                errLbl.setBounds(bounds);

                errLbl.paint(g);

        }

        // g2.setTransform(oldTx);

    }

}