| gvSIG desktop 1

package org.gvsig.hyperlink.actions;

import java.awt.BorderLayout;

import java.awt.Component;

import java.awt.Container;

import java.awt.Dimension;

import java.awt.FlowLayout;

import java.awt.Toolkit;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.print.PageFormat;

import java.awt.print.Paper;

import java.awt.print.PrinterException;

import java.awt.print.PrinterJob;

import java.beans.PropertyChangeEvent;

import java.beans.PropertyChangeListener;

import java.net.URI;

import java.net.URL;

import javax.print.attribute.HashPrintRequestAttributeSet;

import javax.print.attribute.PrintRequestAttributeSet;

import javax.print.attribute.SetOfIntegerSyntax;

import javax.print.attribute.standard.PageRanges;

import javax.swing.ImageIcon;

import javax.swing.JButton;

import javax.swing.JLabel;

import javax.swing.JOptionPane;

import javax.swing.JPanel;

import javax.swing.JScrollPane;

import javax.swing.JTextField;

import org.gvsig.hyperlink.AbstractHyperLinkPanel;

import org.jpedal.Display;

import org.jpedal.PdfDecoder;

import org.jpedal.exception.PdfException;

import org.jpedal.objects.PrinterOptions;

import com.iver.andami.PluginServices;

import com.iver.andami.messages.NotificationManager;

import com.iver.andami.ui.mdiManager.IWindow;

import com.iver.andami.ui.mdiManager.WindowInfo;

public class PdfPanel extends AbstractHyperLinkPanel

                implements PropertyChangeListener, IWindow {

        private static final long serialVersionUID = 1L;

        private WindowInfo m_viewInfo;

        private PdfDecoder pf = null;

        private int currentPage=1;

        private final JLabel pageCounter1=new JLabel(" "+PluginServices.getText(this,"Pagina")+" ");

        private JTextField pageCounter2=new JTextField(4);

        private JLabel pageCounter3=new JLabel(PluginServices.getText(this,"de"));

        public PdfPanel(URI doc){

                super(doc);

                initialize();

        }

        private void initialize(){

                pf = new PdfDecoder();

                try{

                        if (document!=null && document.isAbsolute()) {

                                String urlString = document.toURL().toString();

                                // avoid the openPdfFileFromURL method in first term, to avoid the download dialog

                                if (urlString.startsWith("file:")) { 

                                        urlString = urlString.replaceFirst("file:/*", "/"); //keep just one slash at the beginning

                                        urlString = urlString.replaceAll("%20", " "); // PdfDecoder doesn't correctly digest %20 spaces

                                        pf.openPdfFile(urlString);

                                }

                                else {

                                        pf.openPdfFileFromURL(urlString);

                                }

                        }

                        else {

                                PluginServices.getLogger().warn(PluginServices.getText(this, "Hyperlink_linked_field_doesnot_exist"));

                                return;

                        }

                        //these 2 lines opens page 1 at 100% scaling

                        pf.decodePage(currentPage);

                        float scaling =(float) 1.5;

                        pf.setPageParameters(scaling,1); //values scaling (1=100%). page number

                        pf.setDisplayView(Display.SINGLE_PAGE,Display.DISPLAY_CENTERED);

                }catch(Exception e){

                        NotificationManager.addWarning(PluginServices.getText(this, "Hyperlink_linked_field_doesnot_exist"), e);

                        return;

                }

                //setup our GUI display

                initializeViewer();

                //set page number display

                pageCounter2.setText(currentPage+"");

                pageCounter3.setText(PluginServices.getText(this,"de")+" "+pf.getPageCount()+" ");

        }

        public void setCurrentURL(URI currentURL) {

                document = currentURL;

        }

        private void initializeViewer() {

                Container cPane = this;

                cPane.setLayout(new BorderLayout());

//                JButton open = initOpenBut();//setup open button

                Component[] itemsToAdd = initChangerPanel();//setup page display and changer

                JPanel topBar = new JPanel();

                topBar.setLayout(new FlowLayout(FlowLayout.CENTER,0,0));

//                topBar.add(pageChanger);

                for(int i=0;i<itemsToAdd.length;i++){

            topBar.add(itemsToAdd[i]);

        }

                cPane.add(topBar,BorderLayout.NORTH);

                JScrollPane display = getJPaneViewer();//setup scrollpane with pdf display inside

                cPane.add(display,BorderLayout.CENTER);

                //pack();

                Dimension screen = Toolkit.getDefaultToolkit().getScreenSize();

                setSize(screen.width/2,screen.height/2);

                //<start-13>

                //setLocationRelativeTo(null);//centre on screen

                //<end-13>

                setVisible(true);

        }

private Component[] initChangerPanel(){

        Component[] list = new Component[12];

                /**back to page 1*/

                JButton start = new JButton();

                start.setBorderPainted(false);

                URL startImage =getClass().getResource("/org/jpedal/examples/simpleviewer/res/start.gif");

                start.setIcon(new ImageIcon(startImage));

                start.setToolTipText(PluginServices.getText(this,"primera_pagina"));

//                currentBar1.add(start);

        list[0] = start;

                start.addActionListener(new ActionListener() {

                        public void actionPerformed(ActionEvent e) {

                                if (pf!=null && currentPage!=1) {

                                    currentPage = 1;

                                    try {

                                                pf.decodePage(currentPage);

                                                pf.invalidate();

                                                repaint();

                                        } catch (Exception e1) {

                                                System.err.println("back to page 1");

                                                e1.printStackTrace();

                                        }

                                    //set page number display

                                        pageCounter2.setText(currentPage+"");

                            }

                        }

                });

                /**back 10 icon*/

                JButton fback = new JButton();

                fback.setBorderPainted(false);

                URL fbackImage =getClass().getResource("/org/jpedal/examples/simpleviewer/res/fback.gif");

                fback.setIcon(new ImageIcon(fbackImage));

                fback.setToolTipText(PluginServices.getText(this,"diez_paginas_atras"));

//                currentBar1.add(fback);

        list[1] = fback;

                fback.addActionListener(new ActionListener() {

                        public void actionPerformed(ActionEvent e) {

                                if(pf!=null && currentPage>10){

                                        currentPage -= 10;

                                    try {

                                                pf.decodePage(currentPage);

                                                pf.invalidate();

                                                repaint();

                                        } catch (Exception e1) {

                                                System.err.println("back 10 pages");

                                                e1.printStackTrace();

                                        }

//                                    set page number display

                                        pageCounter2.setText(currentPage+"");

                                }

                        }

                });

                /**back icon*/

                JButton back = new JButton();

                back.setBorderPainted(false);

                URL backImage =getClass().getResource("/org/jpedal/examples/simpleviewer/res/back.gif");

                back.setIcon(new ImageIcon(backImage));

                back.setToolTipText(PluginServices.getText(this,"pagina_atras"));

//                currentBar1.add(back);

        list[2] = back;

                back.addActionListener(new ActionListener() {

                        public void actionPerformed(ActionEvent e) {

                        if(pf!=null && currentPage>1){

                                currentPage -= 1;

                            try {

                                        pf.decodePage(currentPage);

                                        pf.invalidate();

                                        repaint();

                                } catch (Exception e1) {

                                        System.err.println("back 1 page");

                                        e1.printStackTrace();

                                }

//                            set page number display

                                pageCounter2.setText(currentPage+"");

                        }

                        }

                });

                pageCounter2.setEditable(true);

                pageCounter2.addActionListener(new ActionListener(){

                    public void actionPerformed(ActionEvent a) {

                        String value=pageCounter2.getText().trim();

                        int newPage;

                        //allow for bum values

                        try{

                            newPage=Integer.parseInt(value);

                            if((newPage>pf.getPageCount())|(newPage<1)){

                                    return;

                            }

                            currentPage=newPage;

                            try{

                                    pf.decodePage(currentPage);

                                    pf.invalidate();

                                                repaint();

                            }catch(Exception e){

                                    System.err.println("page number entered");

                                    e.printStackTrace();

                            }

                        }catch(Exception e){

                            JOptionPane.showMessageDialog(null,">"+value+ "< "+PluginServices.getText(this,"valor_incorrecto")+pf.getPageCount());

                                }

                    }

                });

                /**put page count in middle of forward and back*/

//                currentBar1.add(pageCounter1);

//                currentBar1.add(new JPanel());//add gap

//                currentBar1.add(pageCounter2);

//                currentBar1.add(new JPanel());//add gap

//                currentBar1.add(pageCounter3);

        list[3] = pageCounter1;

        list[4] = new JPanel();

        list[5] = pageCounter2;

        list[6] = new JPanel();

        list[7] = pageCounter3;

                /**forward icon*/

                JButton forward = new JButton();

                forward.setBorderPainted(false);

                URL fowardImage =getClass().getResource("/org/jpedal/examples/simpleviewer/res/forward.gif");

                forward.setIcon(new ImageIcon(fowardImage));

                forward.setToolTipText(PluginServices.getText(this, "pagina_delante"));

//                currentBar1.add(forward);

        list[8] = forward;

                forward.addActionListener(new ActionListener() {

                        public void actionPerformed(ActionEvent e) {

                        if(pf!=null && currentPage<pf.getPageCount()){

                                currentPage += 1;

                                try {

                                        pf.decodePage(currentPage);

                                        pf.invalidate();

                                        repaint();

                                } catch (Exception e1) {

                                        System.err.println("forward 1 page");

                                        e1.printStackTrace();

                                }

//                                set page number display

                                pageCounter2.setText(currentPage+"");

                        }

                        }

                });

                /**fast forward icon*/

                JButton fforward = new JButton();

                fforward.setBorderPainted(false);

                URL ffowardImage =getClass().getResource("/org/jpedal/examples/simpleviewer/res/fforward.gif");

                fforward.setIcon(new ImageIcon(ffowardImage));

                fforward.setToolTipText(PluginServices.getText(this,"10_paginas_delante"));

//                currentBar1.add(fforward);

        list[9] = fforward;

                fforward.addActionListener(new ActionListener() {

                        public void actionPerformed(ActionEvent e) {

                        if(pf!=null && currentPage<pf.getPageCount()-9){

                                currentPage += 10;

                                try {

                                        pf.decodePage(currentPage);

                                        pf.invalidate();

                                        repaint();

                                } catch (Exception e1) {

                                        System.err.println("forward 10 pages");

                                        e1.printStackTrace();

                                }

//                                set page number display

                                pageCounter2.setText(currentPage+"");

                        }

                        }

                });

                /**goto last page*/

                JButton end = new JButton();

                end.setBorderPainted(false);

                URL endImage =getClass().getResource("/org/jpedal/examples/simpleviewer/res/end.gif");

                end.setIcon(new ImageIcon(endImage));

                end.setToolTipText(PluginServices.getText(this,"ultima_pagina"));

//                currentBar1.add(end);

        list[10] = end;

                end.addActionListener(new ActionListener() {

                        public void actionPerformed(ActionEvent e) {

                        if(pf!=null && currentPage<pf.getPageCount()){

                                currentPage = pf.getPageCount();

                                try {

                                        pf.decodePage(currentPage);

                                        pf.invalidate();

                                        repaint();

                                } catch (Exception e1) {

                                        System.err.println("forward to last page");

                                        e1.printStackTrace();

                                }

//                                set page number display

                                pageCounter2.setText(currentPage+"");

                        }

                        }

                });

                /**Print*/

                JButton print = new JButton();

                print.setBorderPainted(false);

                URL printImage =getClass().getResource("/org/jpedal/examples/simpleviewer/res/print.gif");

                print.setIcon(new ImageIcon(printImage));

                print.setToolTipText(PluginServices.getText(this,"imprimir"));

//                currentBar1.add(end);

        list[11] = print;

                print.addActionListener(new ActionListener() {

                        public void actionPerformed(ActionEvent e) {

                                printPDF();

                        }

                });

                return list;

        }

        public void printPDF(){

                PrinterJob printJob = PrinterJob.getPrinterJob();

                printJob.setPageable(pf);

                //decode_pdf.setPageFormat(pf);

                /**

                 * this additional functionality is available under printable interface

                 */

                //setup default values to add into JPS

                PrintRequestAttributeSet aset=new HashPrintRequestAttributeSet();

                aset.add(new PageRanges(1,pf.getPageCount()));

                boolean printFile=printJob.printDialog(aset);

                //set page range

                PageRanges r=(PageRanges) aset.get(PageRanges.class);

                if(r!=null)

                        try {

                                PageFormat pformat = printJob.defaultPage();

                                Paper paper = new Paper();

                                paper.setSize(595, 842); //default A4

                                paper.setImageableArea(43, 43, 545, 792); //actual print 'zone'

                                pformat.setPaper(paper);

                                //pageable provides a method getPageFormat(int p) - this method allows it to be set by JPedal

                                pf.setPageFormat(pformat);

                                pf.setPagePrintRange((SetOfIntegerSyntax) r);

                        } catch (PdfException e) {

                                // TODO Auto-generated catch block

                                e.printStackTrace();

                        }

                /**

                 * generic call to both Pageable and printable

                 */

                if (printFile)

                        try {

                                pf.setPrintPageScalingMode(PrinterOptions.PAGE_SCALING_FIT_TO_PRINTER_MARGINS);

                                printJob.print();

                        } catch (PrinterException e) {

                                // TODO Auto-generated catch block

                                e.printStackTrace();

                        }

        }

        private JScrollPane getJPaneViewer(){

                JScrollPane currentScroll = new JScrollPane();

                currentScroll.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);

                currentScroll.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED);

                currentScroll.setViewportView(pf);

        return currentScroll;

        }

        /**

         * This is not used by hyperlink, but it's kept as it may be

         * useful to get a quick PDF window in gvSIG.

         */

        public WindowInfo getWindowInfo() {

                if (m_viewInfo==null) {

                        m_viewInfo = new WindowInfo(WindowInfo.PALETTE);

                        m_viewInfo.setMaximizable(true);

                        m_viewInfo.setWidth(this.getWidth());

                        m_viewInfo.setHeight(this.getHeight());

                        m_viewInfo.setTitle(PluginServices.getText(this, "pdf_viewer"));

                }

                return m_viewInfo;

        }

        public void propertyChange(PropertyChangeEvent arg0) {

                // TODO Auto-generated method stub

        }

        public Object getWindowProfile() {

                return WindowInfo.EDITOR_PROFILE;

        }

}