org.interpss.editor.codecs.FileExportPDF.java Source code

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Here is the source code for org.interpss.editor.codecs.FileExportPDF.java

Source

/*
 * @(#)FileExportJPG.java 1.2 01.02.2003
 * 
 * Copyright (C) 2001-2004 Gaudenz Alder
 * 
 * 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.
 *  
 */
package org.interpss.editor.codecs;

import java.awt.Dimension;
import java.awt.Graphics2D;
import java.awt.event.ActionEvent;
import java.awt.geom.Rectangle2D;
import java.io.FileOutputStream;
import java.io.IOException;

import org.interpss.editor.coreframework.actions.IpssAbstractGraphActionFile;
import org.interpss.editor.resources.Translator;
import org.jgraph.JGraph;

import com.lowagie.text.Document;
import com.lowagie.text.DocumentException;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfWriter;

public class FileExportPDF extends IpssAbstractGraphActionFile {

    protected transient String fileType = "pdf";

    /**
     * @see java.awt.event.ActionListener#actionPerformed(ActionEvent)
     */
    public void actionPerformed(ActionEvent e) {
        Document document = new Document();
        try {

            String file = saveDialog(Translator.getString("FileSaveAsLabel") + " " + fileType.toUpperCase(),
                    fileType.toLowerCase(), fileType.toUpperCase() + " Image");
            if (file == null)
                return;

            JGraph graph = getCurrentGraph();
            Object[] cells = graph.getDescendants(graph.getRoots());
            if (cells.length > 0 && file != null && file.length() > 0) {
                PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(file));
                document.open();

                Rectangle2D bounds = graph.getCellBounds(cells);
                graph.toScreen(bounds);
                Dimension d = bounds.getBounds().getSize();

                Object[] selection = graph.getSelectionCells();
                boolean gridVisible = graph.isGridVisible();
                boolean doubleBuffered = graph.isDoubleBuffered();
                graph.setGridVisible(false);
                graph.setDoubleBuffered(false);
                graph.clearSelection();

                PdfContentByte cb = writer.getDirectContent();
                cb.saveState();
                cb.concatCTM(1, 0, 0, 1, 50, 400);
                Graphics2D g2 = cb.createGraphics(d.width + 10, d.height + 10);

                g2.setColor(graph.getBackground());
                g2.fillRect(0, 0, d.width + 10, d.height + 10);
                g2.translate(-bounds.getX() + 5, -bounds.getY() + 5);

                graph.paint(g2);

                graph.setSelectionCells(selection);
                graph.setGridVisible(gridVisible);
                graph.setDoubleBuffered(doubleBuffered);

                g2.dispose();
                cb.restoreState();
            }
        } catch (IOException ex) {
            graphpad.error(ex.getMessage());
        } catch (DocumentException e2) {
            graphpad.error(e2.getMessage());
        }
        document.close();
    }

}