Example usage for java.awt MediaTracker MediaTracker

Introduction

In this page you can find the example usage for java.awt MediaTracker MediaTracker.

Prototype

public MediaTracker(Component comp) 

Source Link

Document

Creates a media tracker to track images for a given component.

Usage

From source file:Java2DExample.java

public ImagePanel(URL imageURL) {
    image = Toolkit.getDefaultToolkit().createImage(imageURL);
    MediaTracker mediaTracker = new MediaTracker(this);
    mediaTracker.addImage(image, 0);/*ww  w  . j a  v  a  2 s.  com*/

    try {
        mediaTracker.waitForAll();
    } catch (InterruptedException e) {
        e.printStackTrace();
    }
    originalImage = new BufferedImage(image.getWidth(null), image.getHeight(null), BufferedImage.TYPE_INT_RGB);
    displayImage = originalImage;
    Graphics2D graphics = displayImage.createGraphics();
    graphics.drawImage(image, null, null);

}

---

From source file:org.jfree.chart.demo.MultiShapesXYDemo.java

/**
 * A demonstration application showing a series with different shape attributes per item.
 *
 * @param title  the frame title.//w ww . j ava2s . c  om
 */
public MultiShapesXYDemo(final String title) {

    super(title);

    System.out.println("About to get images...");
    final URL url1 = getClass().getClassLoader().getResource("org/jfree/chart/demo/redball.png");
    final URL url2 = getClass().getClassLoader().getResource("org/jfree/chart/demo/arrow.png");
    if (url1 != null && url2 != null) {
        this.ballImage = new javax.swing.ImageIcon(url1).getImage();
        this.arrowImage = new javax.swing.ImageIcon(url2).getImage();
        final MediaTracker tracker = new MediaTracker(this);
        tracker.addImage(this.ballImage, 0);
        tracker.addImage(this.arrowImage, 1);
        try {
            tracker.waitForID(0);
            tracker.waitForID(1);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        System.out.println("Images loaded");
    } else {
        System.err.println("Can't find images");
    }
    System.out.println("Images done.");
    this.series = new XYSeries("Some Data");
    for (int i = 0; i < NUMBER_OF_POINTS; i++) {
        final double x = INCREMENT * i;
        final double y = Math.sin(x);
        this.series.add(x, y);
    }
    final XYSeriesCollection data = new XYSeriesCollection(this.series);
    final NumberAxis domainAxis = new NumberAxis("x");
    final NumberAxis rangeAxis = new NumberAxis("sin(x)");
    final DemoRenderer renderer = new DemoRenderer();
    final Plot plot = new XYPlot(data, domainAxis, rangeAxis, renderer);
    final JFreeChart chart = new JFreeChart(plot);
    final ChartPanel chartPanel = new ChartPanel(chart);
    chartPanel.setPreferredSize(new java.awt.Dimension(600, 380));
    setContentPane(chartPanel);

}

---

From source file:ColorApp.java

public void loadImage() {
    displayImage = Toolkit.getDefaultToolkit().getImage("largeJava2sLogo.jpg");
    MediaTracker mt = new MediaTracker(this);
    mt.addImage(displayImage, 1);// www  .ja v a2  s.  c  o m
    try {
        mt.waitForAll();
    } catch (Exception e) {
        System.out.println("Exception while loading.");
    }

    if (displayImage.getWidth(this) == -1) {
        System.out.println("No jpg file");
        System.exit(0);
    }
}

---

From source file:com.tomtom.speedtools.json.ImageSerializer.java

@Nonnull
private static BufferedImage convertToBufferedImage(@Nonnull final Image image) throws IOException {
    assert image != null;

    if (image instanceof BufferedImage) {
        return (BufferedImage) image;
    }/*from   w  w  w .  jav a 2 s  .  c om*/

    /**
     * Load the image in the background and wait
     * until is is downloaded.
     */
    final MediaTracker tracker = new MediaTracker(new Component() {
        // Empty.
    });
    tracker.addImage(image, 0);
    try {
        tracker.waitForAll();
    } catch (final InterruptedException e) {
        throw new IOException(e.getMessage(), e);
    }

    /**
     * Create a buffered image with the right dimensions.
     */
    final BufferedImage bufImage = new BufferedImage(image.getWidth(null), image.getHeight(null),
            BufferedImage.TYPE_INT_ARGB);

    /**
     * Draw the image in the buffer and return it as base64 data.
     */
    final Graphics g = bufImage.createGraphics();
    g.drawImage(image, 0, 0, null);
    return bufImage;
}

---

From source file:AffineTransformApp.java

public void loadImage() {
    displayImage = Toolkit.getDefaultToolkit().getImage("largeJava2sLogo.jpg");
    MediaTracker mt = new MediaTracker(this);
    mt.addImage(displayImage, 1);//from   www  . j a v a2 s  .c  o m
    try {
        mt.waitForAll();
    } catch (Exception e) {
        System.out.println("Exception while loading.");
    }

    if (displayImage.getWidth(this) == -1) {
        System.out.println(" Missing .jpg file");
        System.exit(0);
    }
}

---

From source file:CombineApp.java

public void loadImage() {
    displayImage = Toolkit.getDefaultToolkit().getImage("largeJava2sLogo.jpg");
    MediaTracker mt = new MediaTracker(this);
    mt.addImage(displayImage, 1);//from w  w  w .  java  2 s . c  o m
    try {
        mt.waitForAll();
    } catch (Exception e) {
        System.out.println("Exception while loading.");
    }
    if (displayImage.getWidth(this) == -1) {
        System.out.println("No jpg) file");
        System.exit(0);
    }
}

---

From source file:ColorApp.java

public void loadImage() {
    displayImage = Toolkit.getDefaultToolkit().getImage("a.jpg");
    MediaTracker mt = new MediaTracker(this);
    mt.addImage(displayImage, 1);/* w w w.j a  va  2s. c o  m*/
    try {
        mt.waitForAll();
    } catch (Exception e) {
        System.out.println("Exception while loading.");
    }

    if (displayImage.getWidth(this) == -1) {
        System.out.println("No jpg file");
        System.exit(0);
    }
}

---

From source file:com.cubusmail.server.services.RetrieveImageServlet.java

/**
 * @param bufInputStream//from  w  ww.  j  a v  a  2s  .  c  o m
 * @param outputStream
 */
private void writeScaledImage(BufferedInputStream bufInputStream, OutputStream outputStream) {

    long millis = System.currentTimeMillis();
    try {
        ByteArrayOutputStream bos = new ByteArrayOutputStream();

        int bytesRead = 0;
        byte[] buffer = new byte[8192];
        while ((bytesRead = bufInputStream.read(buffer, 0, 8192)) != -1) {
            bos.write(buffer, 0, bytesRead);
        }
        bos.close();

        byte[] imageBytes = bos.toByteArray();

        Image image = Toolkit.getDefaultToolkit().createImage(imageBytes);
        MediaTracker mediaTracker = new MediaTracker(new Container());
        mediaTracker.addImage(image, 0);
        mediaTracker.waitForID(0);
        // determine thumbnail size from WIDTH and HEIGHT
        int thumbWidth = 300;
        int thumbHeight = 200;
        double thumbRatio = (double) thumbWidth / (double) thumbHeight;
        int imageWidth = image.getWidth(null);
        int imageHeight = image.getHeight(null);
        double imageRatio = (double) imageWidth / (double) imageHeight;
        if (thumbRatio < imageRatio) {
            thumbHeight = (int) (thumbWidth / imageRatio);
        } else {
            thumbWidth = (int) (thumbHeight * imageRatio);
        }
        // draw original image to thumbnail image object and
        // scale it to the new size on-the-fly
        BufferedImage thumbImage = new BufferedImage(thumbWidth, thumbHeight, BufferedImage.TYPE_INT_RGB);
        Graphics2D graphics2D = thumbImage.createGraphics();
        graphics2D.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
                RenderingHints.VALUE_INTERPOLATION_BILINEAR);
        graphics2D.drawImage(image, 0, 0, thumbWidth, thumbHeight, null);

        JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(outputStream);
        JPEGEncodeParam param = encoder.getDefaultJPEGEncodeParam(thumbImage);
        int quality = 70;
        quality = Math.max(0, Math.min(quality, 100));
        param.setQuality((float) quality / 100.0f, false);
        encoder.setJPEGEncodeParam(param);
        encoder.encode(thumbImage);
    } catch (IOException ex) {
        log.error(ex.getMessage(), ex);
    } catch (InterruptedException ex) {
        log.error(ex.getMessage(), ex);
    } finally {
        log.debug("Time for thumbnail: " + (System.currentTimeMillis() - millis) + "ms");
    }
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• »