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GraphicImportExport.javaAPI DocExample5314Wed Nov 10 12:57:48 GMT 2004com.oreilly.qtjnotebook.ch04

GraphicImportExport

public class GraphicImportExport extends Object

Fields Summary
Button
exportButton
Frame
frame
GraphicsImporter
importer
static final int[]
imagetypes
Constructors Summary
public GraphicImportExport()

        try {
            QTSessionCheck.check();
            QTFile inFile =  QTFile.standardGetFilePreview (imagetypes);
            importer = new GraphicsImporter (inFile);
            // put image onscreen
            QTComponent qtc = QTFactory.makeQTComponent (importer);
            java.awt.Component c = qtc.asComponent();
            frame = new Frame ("Imported image");
            frame.setLayout (new BorderLayout());
            frame.add (c, BorderLayout.CENTER);
            exportButton = new Button ("Export");
            exportButton.addActionListener (new ActionListener() {
                public void actionPerformed (ActionEvent ae) {
                    try {
                        doExport();
                    } catch (QTException qte) {
                        qte.printStackTrace();
                    }
                }
            });
            frame.add (exportButton, BorderLayout.SOUTH);
            frame.pack();
            frame.setVisible(true);
        } catch (QTException qte) {
            qte.printStackTrace();
        }
Methods Summary
public voiddoExport()

        // build list of GraphicExporters
        Vector choices = new Vector();
        ComponentDescription cd =
            new ComponentDescription (
                StdQTConstants.graphicsExporterComponentType);
        ComponentIdentifier ci = null;
        while ( (ci = ComponentIdentifier.find(ci, cd)) != null) {
            choices.add (new ExportChoice (ci.getInfo().getName(),
                                           ci.getInfo().getSubType()));
        }

        // offer a choice of movie exporters
        JComboBox exportCombo = new JComboBox (choices);
        JOptionPane.showMessageDialog (frame,
                                       exportCombo,
                                       "Choose exporter",
                                       JOptionPane.PLAIN_MESSAGE);
        ExportChoice choice = 
            (ExportChoice) exportCombo.getSelectedItem();
        System.out.println ("chose " + choice.name);

        // build a GE, wire up to the GraphicsImporter
        GraphicsExporter exporter =
            new GraphicsExporter (choice.subtype);
        exporter.setInputGraphicsImporter (importer);

        // ask for destination, settings
        FileDialog fd =
            new FileDialog (frame, "Save As", 
                            FileDialog.SAVE);
        fd.setVisible(true);
        String filename = fd.getFile();
        if (filename.indexOf('.") == -1)
            filename = filename + "." +
                exporter.getDefaultFileNameExtension();
        File file = new File (fd.getDirectory(), filename);
        exporter.setOutputFile (new QTFile(file));
        exporter.requestSettings();

        // export
        exporter.doExport();

        // need to explicitly quit (since awt is running)
        System.exit(0);
public static voidmain(java.lang.String[] args)

    /* other interesting values:
        StdQTConstants.kQTFileTypeGIF,
        StdQTConstants.kQTFileTypeJPEG,
        StdQTConstants4.kQTFileTypePNG,
        StdQTConstants4.kQTFileTypeTIFF
        StdQTConstants.kQTFileTypeMacPaint,
        StdQTConstants.kQTFileTypePhotoShop,
        StdQTConstants.kQTFileTypePICS,
        StdQTConstants.kQTFileTypePicture,
    */

          
        new GraphicImportExport();