This implementation uses iText PDF, which is under the Affero General Public License (AGPL). Thus, use of this package is optional. To add the "Export PDF" menu choice to the GraphEditor, add the following to the configuration
<property name="_exportPDFClassName"
class="ptolemy.data.expr.StringParameter"
value="ptolemy.vergil.basic.export.itextpdf.ExportPDFAction"/>
{@link ptolemy.vergil.basic.BasicGraphFrame} checks for this parameter
and adds the "Export PDF" menu choice if the class named by that parameter exists.
The $PTII/ptolemy/configs/defaultFullConfiguration.xml file
already has this parameter. The ptiny configuration does not have
this parameter so that we have a smaller download and have a non-GPL executable.
@author Edward A. Lee, Christopher Brooks
@version $Id: ExportPDFAction.java 70402 2014-10-23 00:52:20Z cxh $
@since Ptolemy II 10.0
@Pt.ProposedRating Red (cxh)
@Pt.AcceptedRating Red (cxh)
*/
@SuppressWarnings("serial")
public class ExportPDFAction extends AbstractAction {
/** Create a new action to export PDF.
* @param frame The Frame which to which this action is added.
*/
public ExportPDFAction(Top frame) {
super("Export PDF");
_frame = frame;
putValue("tooltip", "Export PDF to a file.");
putValue(GUIUtilities.MNEMONIC_KEY, Integer.valueOf(KeyEvent.VK_X));
}
///////////////////////////////////////////////////////////////////
//// ppublic methods ////
/** Export PDF. */
@Override
public void actionPerformed(ActionEvent e) {
if (!(_frame instanceof Printable)) {
MessageHandler.error("Export PDF not supported.");
}
_exportPDF();
}
///////////////////////////////////////////////////////////////////
//// protected methods ////
/** Export PDF to a file.
* This uses the iText library at http://itextpdf.com/.
*
*
If {@link ptolemy.gui.PtGUIUtilities#useFileDialog()} returns true * then a java.awt.FileDialog is used, otherwise a javax.swing.JFileChooser * is used.
*/ private void _exportPDF() { Dimension size = _frame.getContentSize(); Rectangle pageSize = null; try { pageSize = new Rectangle(size.width, size.height); } catch (Throwable ex) { // This exception will occur if the iText library is not installed. MessageHandler .error("iText library is not installed. See http://itextpdf.com/." + " You must have iText.jar in your classpath. Sometimes, " + "iText.jar may be found in $PTII/vendors/itext/iText.jar.", ex); return; } Document document = new Document(pageSize); JFileChooserBugFix jFileChooserBugFix = new JFileChooserBugFix(); Color background = null; PtFileChooser ptFileChooser = null; try { background = jFileChooserBugFix.saveBackground(); ptFileChooser = new PtFileChooser(_frame, "Specify a pdf file to be written.", JFileChooser.SAVE_DIALOG); LinkedList extensions = new LinkedList(); extensions.add("pdf"); ptFileChooser.addChoosableFileFilter(new ExtensionFilenameFilter( extensions)); BasicGraphFrame basicGraphFrame = null; if (_frame instanceof BasicGraphFrame) { basicGraphFrame = (BasicGraphFrame) _frame; ptFileChooser.setCurrentDirectory(basicGraphFrame .getLastDirectory()); ptFileChooser.setSelectedFile(new File(basicGraphFrame .getModel().getName() + ".pdf")); } int returnVal = ptFileChooser.showDialog(_frame, "Export PDF"); if (returnVal == JFileChooser.APPROVE_OPTION) { if (basicGraphFrame != null) { basicGraphFrame.setLastDirectory(ptFileChooser .getCurrentDirectory()); } File pdfFile = ptFileChooser.getSelectedFile() .getCanonicalFile(); if (pdfFile.getName().indexOf(".") == -1) { // If the user has not given the file an extension, add it pdfFile = new File(pdfFile.getAbsolutePath() + ".pdf"); } // The Mac OS X FileDialog will ask if we want to save before this point. if (pdfFile.exists() && !PtGUIUtilities.useFileDialog()) { if (!MessageHandler.yesNoQuestion("Overwrite " + pdfFile.getName() + "?")) { return; } } PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(pdfFile)); // To ensure Latex compatibility, use earlier PDF version. writer.setPdfVersion(PdfWriter.VERSION_1_3); document.open(); PdfContentByte contentByte = writer.getDirectContent(); PdfTemplate template = contentByte.createTemplate(size.width, size.height); Graphics2D graphics = template.createGraphics(size.width, size.height); template.setWidth(size.width); template.setHeight(size.height); Paper paper = new Paper(); paper.setSize(size.width, size.height); paper.setImageableArea(0.0, 0.0, size.width, size.height); PageFormat format = new PageFormat(); format.setPaper(paper); ((Printable) _frame).print(graphics, format, 0); graphics.dispose(); contentByte.addTemplate(template, 0, 0); // Open the PDF file. // FIXME: _read is protected in BasicGraphFrame //_read(pdfFile.toURI().toURL()); // Open the image pdfFile. if (basicGraphFrame == null) { MessageHandler.message("PDF file exported to " + pdfFile.getName()); /* Remove the following. The extra click is annoying... } else { if (MessageHandler.yesNoQuestion("Open \"" + pdfFile.getCanonicalPath() + "\" in a browser?")) { Configuration configuration = basicGraphFrame .getConfiguration(); try { URL imageURL = new URL(pdfFile.toURI().toURL() .toString() + "#in_browser"); configuration.openModel(imageURL, imageURL, imageURL.toExternalForm(), BrowserEffigy.staticFactory); } catch (Throwable throwable) { MessageHandler.error( "Failed to open \"" + pdfFile.getName() + "\".", throwable); } } */ } } } catch (Exception e) { MessageHandler.error("Export to PDF failed", e); } finally { try { document.close(); } finally { jFileChooserBugFix.restoreBackground(background); } } } /////////////////////////////////////////////////////////////////// //// private variables /** The top-level window of the contents to be exported. */ Top _frame; }