Application: gvSIG desktop

/* 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.panels;

import java.awt.BorderLayout;

import java.awt.Dimension;

import java.awt.Graphics2D;

import java.awt.GridBagConstraints;

import java.awt.GridBagLayout;

import java.awt.GridLayout;

import java.awt.RenderingHints;

import java.awt.event.ComponentEvent;

import java.awt.event.ComponentListener;

import java.awt.geom.AffineTransform;

import java.awt.geom.Rectangle2D;

import java.awt.image.BufferedImage;

import java.io.File;

import java.io.IOException;

import java.net.MalformedURLException;

import java.net.URI;

import java.net.URL;

import javax.swing.ImageIcon;

import javax.swing.JButton;

import javax.swing.JDialog;

import javax.swing.JLabel;

import javax.swing.JPanel;

import javax.swing.JScrollPane;

import javax.swing.JTextPane;

import javax.swing.event.HyperlinkEvent;

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.gvsig.andami.PluginServices;

import org.gvsig.andami.messages.NotificationManager;

import org.gvsig.andami.ui.mdiManager.IWindow;

import org.gvsig.andami.ui.mdiManager.WindowInfo;

import org.gvsig.app.project.documents.gui.PDFViewerWindow;

import org.gvsig.app.project.documents.view.toolListeners.LinkListener;

import org.gvsig.utils.BrowserControl;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import org.w3c.dom.Document;

import org.w3c.dom.Element;

import org.w3c.dom.svg.SVGDocument;

import com.sun.jimi.core.Jimi;

/**

 * This class extends JPanel. This class implements a Panel to show the content of the URI

 * that the constructor of the class receives. The URI is interpreted according to the type

 * of the HyperLink. The allowed types are Text, WWW, image (jpg,gif,tiff,bmp,ico), PDF

 * documents and SVG images. Implements listener to resize the component that contains the

 * text when resize the window.

 *

 * @author Vicente Caballero Navarro

 *

 */

public class LinkPanel extends JPanel implements IWindow, ComponentListener {

    private static final Logger logger = LoggerFactory

            .getLogger(LinkPanel.class);

        private JPanel jPane = null;

        private JScrollPane jScrollPane = null;

//        private JEditorPane jEditorPane1 = null;

        private JPanel jPanel = null; //  @jve:decl-index=0:visual-constraint="220,10"

        private URI uri=null;

        private int type=LinkListener.TYPELINKIMAGE;

        private JPanel jPanel1Izq = null;

        private JPanel jPanel1Der = null;

        private JLabel jLabelUri = null;

        private JButton jButtonCerrar = null;

        private JScrollPane scroll=null;

        private int alto;

        private int ancho;

        private WindowInfo m_ViewInfo;

        private JTextPane textPane;

        private Element elt;

    private GVTBuilder gvtBuilder = new GVTBuilder();

    private GraphicsNode gvtRoot = null;

    private BridgeContext ctx = null;

    private StaticRenderer renderer = new StaticRenderer();

    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);

    }

        /**

         * This is the default constructor. Needs the URI with the information of the HyperLink

         * and the type of the HyperLink

         */

        public LinkPanel(URI Uri, int t){

                super();

                type=t;

                uri=Uri;

                addComponentListener(this);

                initialize();

        }

        /**

         * This method initializes this

         */

        private void initialize() {

                this.setLayout(new BorderLayout());

                this.setSize(600, 450);

                alto=this.getHeight()-100;

                ancho=this.getWidth()-100;

                this.add(getJScrollPane(), java.awt.BorderLayout.CENTER);

                this.add(getJPanel(), java.awt.BorderLayout.SOUTH);

        }

        /**

         * This method initializes jScrollPane

         *

         * @return javax.swing.JScrollPane

         */

        private JScrollPane getJScrollPane() {

                if (jScrollPane == null) {

                        jScrollPane = new JScrollPane();

                        jScrollPane.setPreferredSize(new java.awt.Dimension(300, 400));

                        jScrollPane.setViewportView(getJPane());

                }

                return jScrollPane;

        }

        /**

         * This method initializes jEditorPane1. Check the type of the HyperLink and analize the

         * URI. According to the type, adds to the panel the necessary components to show the

         * content of the URI. If the type is "0" (text/WWW) adds a ScrollPane with the text.

         * If the type "1" (smages) adds a ImageIcon with a label. If the type is "2" uses the

         * library "JPedal" to open PDF documents and if the type is "3" implements some methods

         * to open SVG images

         *

         * @return javax.swing.JEditorPane

         */

        private JPanel getJPane() {

                if (jPane == null) {

                        jPane=new JPanel();

                        System.out.println(type);

                        //Enlazar a documento de texto o WWW

                        if (type==1){

                                textPane = new JTextPane();

                                scroll = new JScrollPane(textPane);

                                scroll.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS );

                        scroll.setPreferredSize(new Dimension(ancho-100,alto-100));

                        scroll.setMinimumSize(new Dimension(ancho-100,alto-100));

                        textPane.setEditable(false);

                                if(uri==null) {

                                        System.out.println("NULO");

                                }

                                if (uri != null) {

                                        URL url=null;

                                        try {

                                                url=uri.normalize().toURL();

                                        } catch (MalformedURLException e1) {

                                                NotificationManager.addError(e1);

                                        }

                                        try {

                                                textPane.setPage(url);

                                                textPane.addHyperlinkListener(new javax.swing.event.HyperlinkListener() {

                                                        public void hyperlinkUpdate(javax.swing.event.HyperlinkEvent e) {

                                                                if (e.getEventType() == HyperlinkEvent.EventType.ACTIVATED) {

                                                                        System.out.println("hyperlinkUpdate()");

                                                                        BrowserControl.displayURL(e.getURL().toString());

                                                                        }

                                                                }

                                                        });

                                        } catch (IOException e) {

                                                System.err.println("Attempted to read a bad URL: " +

                                                uri);

                                        }

                                        jPane.add(scroll);

                                } else {

                                        System.err.println("Couldn't find file.");

                                }

                        }

                        //Enlazar a archivo de Im?gen

                        else if (type==0){

                                ImageIcon image = null;

                                String iString=uri.toString();

                                iString=iString.toLowerCase();

                                if (uri == null){

                                        System.out.println("Uri creada incorrectamente");

                                        return null;}

                                if (iString.endsWith("jpg") || iString.endsWith("jpeg") ||

                                iString.endsWith("gif")) {

                            try {

                                                image = new ImageIcon(Jimi.getImage(uri.toURL()));

                                        } catch (MalformedURLException e) {

                                                e.printStackTrace();

                                        }

                        } else

                                if (iString.endsWith("png") || iString.endsWith("tiff") ||

                                iString.endsWith("ico") || iString.endsWith("xpm")) {

                            try {

                                                image = new ImageIcon(Jimi.getImage(uri.toURL()));

                                        } catch (MalformedURLException e) {

                                                e.printStackTrace();

                                        }

                        }else {

                                try {

                                                image=new ImageIcon(uri.toURL());

                                        } catch (MalformedURLException e) {

                                                e.printStackTrace();

                                        }

                        }

                                if (image==null) {

                                        return null;

                                }

                                JLabel label = new JLabel(image);

                                jPane.add(label);

                                jPane.setVisible(true);

                        }

                        //Tipo 2: Enlazar a documentos PDF

                        else if (type==2){

                                String aux=null;

                                try {

                                        aux = uri.normalize().toURL().toString();

                                } catch (MalformedURLException e) {

                                        e.printStackTrace();

                                }

                                aux=aux.replaceFirst("file:/","");

                                System.out.println(aux);

                                PDFViewerWindow pdf =new PDFViewerWindow(aux);

                                jPane.add(pdf);

                                jPane.setVisible(true);

                        }

                        //Tipo 3: Enlazar a im?genes SDV

                        else if (type==3){

                                String iString=uri.toString();

                                iString=iString.toLowerCase();

                                if (uri == null){

                                        System.out.println("Uri creada incorrectamente");

                                        return null;}

                                File file=new File(uri);

                                iString=uri.toString().replaceFirst("file:/","");

                                if (iString.endsWith("svg")){

                                        paintSVGToPanel(file);

                                }

                        }

                }

                return jPane;

         }

        /**

         * Allows paint SVG images in the panel.

         *

         * @param file, this file has been extracted from the URI

         */

        private void paintSVGToPanel(File file) {

                BufferedImage image = new BufferedImage(this.getWidth(), this.getHeight(),

                                BufferedImage.TYPE_INT_ARGB);

            Graphics2D g = image.createGraphics();

                Rectangle2D rect = new Rectangle2D.Double();

                rect.setFrame(0,0,this.getWidth(),this.getHeight());

                obtainStaticRenderer(file);

                drawSVG(g,rect, null);

                jPane.setVisible(true);

                ImageIcon icon=new ImageIcon(image);

                JLabel label = new JLabel(icon);

                jPane.add(label);

        }

        /**

         * Render the image to add to the panel.

         * @param file, this file has been extracted from the URI

         */

        private void obtainStaticRenderer(File file) {

        try {

            UserAgentAdapter userAgent = new UserAgentAdapter();

            DocumentLoader loader = new DocumentLoader(userAgent);

            ctx = new BridgeContext(userAgent, loader);

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

            gvtRoot = gvtBuilder.build(ctx, svgDoc);

            renderer.setTree(gvtRoot);

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

        } catch (Exception ex) {

            ex.printStackTrace();

        }

    }

         /**

         * Draw SVG in the Graphics that receives like parameter.

     *

     * @param g Graphics

     * @param rect Rectangle that fills the Graphic.

     * @param rv Rectangle. This forms the visible part in the Layout

     */

    private void drawSVG(Graphics2D g, Rectangle2D rect, Rectangle2D rv) {

        if ((rv == null) || rv.contains(rect)) {

            AffineTransform ataux = new AffineTransform();

            ataux.translate(rect.getX(), rect.getY());

            try {

                ataux.concatenate(ViewBox.getViewTransform(null, elt,

                        (float) rect.getWidth(), (float) rect.getHeight(), ctx));

                gvtRoot.setTransform(ataux);

            } catch (Exception e) {

                // TODO: handle exception

            }

        } else {

            AffineTransform ataux = new AffineTransform();

            ataux.translate(rect.getX(), rect.getY());

            ataux.concatenate(ViewBox.getViewTransform(null, elt,

                    (float) rect.getWidth(), (float) rect.getHeight(), ctx));

            gvtRoot.setTransform(ataux);

        }

        RenderingHints renderingHints = defaultRenderingHints;

        g.setRenderingHints(renderingHints);

        if (gvtRoot != null) {

            gvtRoot.paint(g);

        }

    }

        /**

         * This method initializes jPanel

         *

         * @return javax.swing.JPanel

         */

        private JPanel getJPanel() {

                if (jPanel == null) {

                        //JLabel name = new JLabel();

                        GridLayout gridLayout = new GridLayout();

                        gridLayout.setRows(1);

                        jPanel = new JPanel();

                        jPanel.setLayout(gridLayout);

                        jPanel.setPreferredSize(new java.awt.Dimension(10, 50));

                        jPanel.setSize(411, 50);

                        jPanel.add(getJPanel1Izq(), null);

                        jPanel.add(getJPanel1Der(), null);

                        String auxext="";

                }

                return jPanel;

        }

        /* (non-Javadoc)

         * @see com.iver.mdiApp.ui.MDIManager.View#getViewInfo()

         */

        public WindowInfo getWindowInfo() {

                m_ViewInfo = new WindowInfo(WindowInfo.RESIZABLE | WindowInfo.MAXIMIZABLE | WindowInfo.ICONIFIABLE);

                m_ViewInfo.setTitle(PluginServices.getText(this,"Hiperenlace"));

                return m_ViewInfo;

        }

        /* (non-Javadoc)

         * @see com.iver.mdiApp.ui.MDIManager.View#viewActivated()

         */

        public void viewActivated() {

                // TODO Auto-generated method stub

        }

        /**

         * This method initializes jPanel1Izq

         *

         * @return javax.swing.JPanel

         */

        private JPanel getJPanel1Izq() {

                if (jPanel1Izq == null) {

                        GridBagConstraints gridBagConstraints = new GridBagConstraints();

                        gridBagConstraints.gridx = 0;

                        gridBagConstraints.gridy = 0;

                        jLabelUri = new JLabel();

                        jLabelUri.setText(uri.toString());

                        jLabelUri.setPreferredSize(new java.awt.Dimension(172,17));

                        jPanel1Izq = new JPanel();

                        jPanel1Izq.setLayout(new GridBagLayout());

                        jPanel1Izq.setPreferredSize(new java.awt.Dimension(10,10));

                        jPanel1Izq.setAlignmentX(0.5F);

                        jPanel1Izq.add(jLabelUri, gridBagConstraints);

                }

                return jPanel1Izq;

        }

        /**

         * This method initializes jPanel1Der

         *

         * @return javax.swing.JPanel

         */

        private JPanel getJPanel1Der() {

                if (jPanel1Der == null) {

                        GridBagConstraints gridBagConstraints1 = new GridBagConstraints();

                        gridBagConstraints1.gridx = 0;

                        gridBagConstraints1.gridy = 0;

                        jPanel1Der = new JPanel();

                        jPanel1Der.setLayout(new GridBagLayout());

                        jPanel1Der.add(getJButtonCerrar(), gridBagConstraints1);

                }

                return jPanel1Der;

        }

        /**

         * Initializes jButtonCerrar, and implements the Listener to close the window

         *

         * @return javax.swing.JButton

         */

        private JButton getJButtonCerrar() {

                if (jButtonCerrar == null) {

                        jButtonCerrar = new JButton();

                        jButtonCerrar.setPreferredSize(new java.awt.Dimension(94,25));

                        jButtonCerrar.setText(PluginServices.getText(this,"Cerrar"));

                        jButtonCerrar.addActionListener(new java.awt.event.ActionListener() {

                                public void actionPerformed(java.awt.event.ActionEvent e) {

                                        System.out.println("actionPerformed()"); // TODO Auto-generated Event stub actionPerformed()

                                        if (PluginServices.getMainFrame() != null) {

                                                PluginServices.getMDIManager().closeWindow(LinkPanel.this);

                                        } else {

                                                ((JDialog) (getParent().getParent().getParent()

                                                                                .getParent())).dispose();

                                        }

                                }

                        });

                }

                return jButtonCerrar;

        }

        /**

         * Resizes the scroll that contains the text when the window changes its own size

         */

        private void redimensionarScroll(){

                Dimension currentSize = getSize();

                scroll.setPreferredSize(new Dimension(currentSize.width-100,currentSize.height-100));

        scroll.setMinimumSize(new Dimension(currentSize.width-100,currentSize.height-100));

                scroll.updateUI();

                System.out.println(scroll.getSize().toString());

        }

        /**

         * Invoked when the frame?s size changes

         */

        public void componentResized(ComponentEvent e) {

                if(type==1) {

                        redimensionarScroll();

                }

        }

        /*

         *  (non-Javadoc)

         * @see java.awt.event.ComponentListener#componentMoved(java.awt.event.ComponentEvent)

         */

        public void componentMoved(ComponentEvent e) {

                // TODO Auto-generated method stub

        }

        /*

         *  (non-Javadoc)

         * @see java.awt.event.ComponentListener#componentShown(java.awt.event.ComponentEvent)

         */

        public void componentShown(ComponentEvent e) {

                // TODO Auto-generated method stub

        }

        /*

         *  (non-Javadoc)

         * @see java.awt.event.ComponentListener#componentHidden(java.awt.event.ComponentEvent)

         */

        public void componentHidden(ComponentEvent e) {

                // TODO Auto-generated method stub

        }

        public Object getWindowProfile() {

                return WindowInfo.TOOL_PROFILE;

        }

}