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 com.iver.cit.gvsig;

import java.awt.Color;

import java.awt.Graphics;

import java.awt.Graphics2D;

import java.awt.print.PageFormat;

import java.awt.print.Printable;

import java.awt.print.PrinterException;

import java.awt.print.PrinterJob;

import javax.swing.JTable;

import org.apache.log4j.Logger;

import com.iver.andami.PluginServices;

import com.iver.andami.plugins.Extension;

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

import com.iver.cit.gvsig.gui.Table;

/**

 * Extensi?n para imprimir una tabla.

 *

 * @author Vicente Caballero Navarro

 */

public class PrintTable extends Extension implements Printable {

        private static Logger logger = Logger.getLogger(PrintTable.class.getName());

        private JTable table = null;

        /**

     * DOCUMENT ME!

     */

    public void initialize() {

    }

    /**

     * DOCUMENT ME!

     *

     * @param actionCommand DOCUMENT ME!

     */

    public void execute(String s) {

            if (s.compareTo("PRINTTABLE") == 0){

                    View f = PluginServices.getMDIManager().getActiveView();

                    table=((Table)f).getTable();

                    PluginServices.backgroundExecution(new Runnable() {

                                public void run() {

                                        PrinterJob pj=PrinterJob.getPrinterJob();

                                pj.setPrintable(PrintTable.this);

                                if (pj.printDialog()){

                                try{ 

                                        pj.print();

                                }catch (Exception PrintException) {}

                                }

                                }

                        });

            }

    }

    /**

     * DOCUMENT ME!

     *

     * @return DOCUMENT ME!

     */

    public boolean isEnabled() {

        return true;

    }

    /**

     * DOCUMENT ME!

     *

     * @return DOCUMENT ME!

     */

    public boolean isVisible() {

            View f = PluginServices.getMDIManager().getActiveView();

                if (f == null) {

                        return false;

                }

                if (f.getClass() == Table.class) {

                        return true; 

                } else {

                        return false;

                }

    }

    public int print(Graphics g, PageFormat pageFormat, 

            int pageIndex) throws PrinterException {

                 Graphics2D  g2 = (Graphics2D) g;

                 g2.setColor(Color.black);

                 int fontHeight=g2.getFontMetrics().getHeight();

                 int fontDesent=g2.getFontMetrics().getDescent();

                 //leave room for page number

                 double pageHeight = 

                   pageFormat.getImageableHeight()-fontHeight;

                 double pageWidth = 

                   pageFormat.getImageableWidth();

                 double tableWidth = (double) 

              table.getColumnModel(

              ).getTotalColumnWidth();

                 double scale = 1; 

                 if (tableWidth >= pageWidth) {

                    scale =  pageWidth / tableWidth;

            }

                 double headerHeightOnPage=

                     table.getTableHeader(

                     ).getHeight()*scale;

                 double tableWidthOnPage=tableWidth*scale;

                 double oneRowHeight=(table.getRowHeight()+

                          table.getRowMargin())*scale;

                 int numRowsOnAPage=

                  (int)((pageHeight-headerHeightOnPage)/

                                      oneRowHeight);

                 double pageHeightForTable=oneRowHeight*

                                             numRowsOnAPage;

                 int totalNumPages= 

                       (int)Math.ceil((

                    (double)table.getRowCount())/

                                        numRowsOnAPage);

                 if(pageIndex>=totalNumPages) {

                          return NO_SUCH_PAGE;

                 }

                 g2.translate(pageFormat.getImageableX(), 

                           pageFormat.getImageableY());

//    bottom center

                 g2.drawString("Page: "+(pageIndex+1),

                     (int)pageWidth/2-35, (int)(pageHeight

                     +fontHeight-fontDesent));

                 g2.translate(0f,headerHeightOnPage);

                 g2.translate(0f,-pageIndex*pageHeightForTable);

                 //If this piece of the table is smaller 

                 //than the size available,

                 //clip to the appropriate bounds.

                 if (pageIndex + 1 == totalNumPages) {

               int lastRowPrinted = 

                     numRowsOnAPage * pageIndex;

               int numRowsLeft = 

                     table.getRowCount() 

                     - lastRowPrinted;

               g2.setClip(0, 

                 (int)(pageHeightForTable * pageIndex),

                 (int) Math.ceil(tableWidthOnPage),

                 (int) Math.ceil(oneRowHeight * 

                                   numRowsLeft));

                 }

                 //else clip to the entire area available.

                 else{    

                 g2.setClip(0, 

                 (int)(pageHeightForTable*pageIndex), 

                 (int) Math.ceil(tableWidthOnPage),

                 (int) Math.ceil(pageHeightForTable));        

                 }

                 g2.scale(scale,scale);

                 table.paint(g2);

                 g2.scale(1/scale,1/scale);

                 g2.translate(0f,pageIndex*pageHeightForTable);

                 g2.translate(0f, -headerHeightOnPage);

                 g2.setClip(0, 0,

                   (int) Math.ceil(tableWidthOnPage), 

              (int)Math.ceil(headerHeightOnPage));

                 g2.scale(scale,scale);

                 table.getTableHeader().paint(g2);

                 //paint header at top

                 return Printable.PAGE_EXISTS;

       }

}