Example usage for javax.imageio.event IIOReadProgressListener IIOReadProgressListener

Introduction

In this page you can find the example usage for javax.imageio.event IIOReadProgressListener IIOReadProgressListener.

Prototype

IIOReadProgressListener

Source Link

Usage

From source file:Main.java

static public void main(String args[]) throws Exception {
    FileInputStream fin = new FileInputStream("a.gif");
    Iterator readers = ImageIO.getImageReadersBySuffix("GIF");
    ImageReader imageReader = (ImageReader) readers.next();
    ImageInputStream iis = ImageIO.createImageInputStream(fin);
    imageReader.setInput(iis, false);//from   w  ww.j  a  v  a  2 s. c  o  m

    imageReader.addIIOReadProgressListener(new IIOReadProgressListener() {
        public void imageComplete(ImageReader source) {
            System.out.println("image complete " + source);
        }

        public void imageProgress(ImageReader source, float percentageDone) {
            System.out.println("image progress " + source + ": " + percentageDone + "%");
        }

        public void imageStarted(ImageReader source, int imageIndex) {
            System.out.println("image #" + imageIndex + " started " + source);
        }

        public void readAborted(ImageReader source) {
            System.out.println("read aborted " + source);
        }

        public void sequenceComplete(ImageReader source) {
            System.out.println("sequence complete " + source);
        }

        public void sequenceStarted(ImageReader source, int minIndex) {
            System.out.println("sequence started " + source + ": " + minIndex);
        }

        public void thumbnailComplete(ImageReader source) {
            System.out.println("thumbnail complete " + source);
        }

        public void thumbnailProgress(ImageReader source, float percentageDone) {
            System.out.println("thumbnail started " + source + ": " + percentageDone + "%");
        }

        public void thumbnailStarted(ImageReader source, int imageIndex, int thumbnailIndex) {
            System.out.println("thumbnail progress " + source + ", " + thumbnailIndex + " of " + imageIndex);
        }
    });

    BufferedImage image = imageReader.read(0);

    Iterator imageWriters = ImageIO.getImageWritersBySuffix("JPG");
    ImageWriter imageWriter = (ImageWriter) imageWriters.next();
    File file = new File("b.JPG");
    ImageOutputStream ios = ImageIO.createImageOutputStream(file);
    imageWriter.setOutput(ios);
    imageWriter.write(image);
}

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From source file:de.cismet.cids.custom.objecteditors.wunda_blau.WebDavPicturePanel.java

/**
 * DOCUMENT ME!//from   ww w. j  av a  2 s .co  m
 *
 * @param   fileName  DOCUMENT ME!
 *
 * @return  DOCUMENT ME!
 *
 * @throws  Exception  DOCUMENT ME!
 */
private BufferedImage downloadImageFromWebDAV(final String fileName) throws Exception {
    final InputStream iStream = webdavHelper.getFileFromWebDAV(fileName, webdavDirectory,
            getConnectionContext());
    try {
        final ImageInputStream iiStream = ImageIO.createImageInputStream(iStream);
        final Iterator<ImageReader> itReader = ImageIO.getImageReaders(iiStream);
        if (itReader.hasNext()) {
            final ImageReader reader = itReader.next();
            final ProgressMonitor monitor = new ProgressMonitor(this, "Bild wird bertragen...", "", 0, 100);
            //            monitor.setMillisToPopup(500);
            reader.addIIOReadProgressListener(new IIOReadProgressListener() {

                @Override
                public void sequenceStarted(final ImageReader source, final int minIndex) {
                }

                @Override
                public void sequenceComplete(final ImageReader source) {
                }

                @Override
                public void imageStarted(final ImageReader source, final int imageIndex) {
                    monitor.setProgress(monitor.getMinimum());
                }

                @Override
                public void imageProgress(final ImageReader source, final float percentageDone) {
                    if (monitor.isCanceled()) {
                        try {
                            iiStream.close();
                        } catch (final IOException ex) {
                            // NOP
                        }
                    } else {
                        monitor.setProgress(Math.round(percentageDone));
                    }
                }

                @Override
                public void imageComplete(final ImageReader source) {
                    monitor.setProgress(monitor.getMaximum());
                }

                @Override
                public void thumbnailStarted(final ImageReader source, final int imageIndex,
                        final int thumbnailIndex) {
                }

                @Override
                public void thumbnailProgress(final ImageReader source, final float percentageDone) {
                }

                @Override
                public void thumbnailComplete(final ImageReader source) {
                }

                @Override
                public void readAborted(final ImageReader source) {
                    monitor.close();
                }
            });

            final ImageReadParam param = reader.getDefaultReadParam();
            reader.setInput(iiStream, true, true);
            final BufferedImage result;
            try {
                result = reader.read(0, param);
            } finally {
                reader.dispose();
                iiStream.close();
            }
            return result;
        } else {
            return null;
        }
    } finally {
        IOUtils.closeQuietly(iStream);
    }
}

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