Example usage for java.awt Image getWidth

Introduction

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

Prototype

public abstract int getWidth(ImageObserver observer);

Source Link

Document

Determines the width of the image.

Usage

From source file:Main.java

/**
 * This method returns a buffered image with the contents of an image
 * This snippet was taken from: http://www.exampledepot.com/egs/java.awt.image/Image2Buf.html
 * @param image//from ww  w.  ja v  a2 s  . c o  m
 * @return The buffered image
 */
public static BufferedImage toBufferedImage(Image image) {
    if (image instanceof BufferedImage) {
        return (BufferedImage) image;
    }

    // This code ensures that all the pixels in the image are loaded
    image = new ImageIcon(image).getImage();

    // Determine if the image has transparent pixels; for this method's
    // implementation, see e661 Determining If an Image Has Transparent Pixels
    boolean hasAlpha = hasAlpha(image);

    // Create a buffered image with a format that's compatible with the screen
    BufferedImage bimage = null;
    GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
    try {
        // Determine the type of transparency of the new buffered image
        int transparency = Transparency.OPAQUE;
        if (hasAlpha) {
            transparency = Transparency.BITMASK;
        }

        // Create the buffered image
        GraphicsDevice gs = ge.getDefaultScreenDevice();
        GraphicsConfiguration gc = gs.getDefaultConfiguration();
        bimage = gc.createCompatibleImage(image.getWidth(null), image.getHeight(null), transparency);
    } catch (HeadlessException e) {
        // The system does not have a screen
    }

    if (bimage == null) {
        // Create a buffered image using the default color model
        int type = BufferedImage.TYPE_INT_RGB;
        if (hasAlpha) {
            type = BufferedImage.TYPE_INT_ARGB;
        }
        bimage = new BufferedImage(image.getWidth(null), image.getHeight(null), type);
    }

    // Copy image to buffered image
    Graphics g = bimage.createGraphics();

    // Paint the image onto the buffered image
    g.drawImage(image, 0, 0, null);
    g.dispose();

    return bimage;
}

From source file:net.rptools.lib.image.ThumbnailManager.java

private Image createThumbnail(File file) throws IOException {
    // Gather info
    File thumbnailFile = getThumbnailFile(file);
    if (thumbnailFile.exists()) {
        return ImageUtil.getImage(thumbnailFile);
    }/*from w w w. ja  v a2  s.  com*/

    Image image = ImageUtil.getImage(file);
    Dimension imgSize = new Dimension(image.getWidth(null), image.getHeight(null));

    // Test if we Should we bother making a thumbnail ?
    // Jamz: New size 100k (was 30k) and put in check so we're not creating thumbnails LARGER than the original...
    if (file.length() < 102400
            || (imgSize.width <= thumbnailSize.width && imgSize.height <= thumbnailSize.height)) {
        return image;
    }
    // Transform the image
    SwingUtil.constrainTo(imgSize, Math.min(image.getWidth(null), thumbnailSize.width),
            Math.min(image.getHeight(null), thumbnailSize.height));
    BufferedImage thumbnailImage = new BufferedImage(imgSize.width, imgSize.height,
            ImageUtil.pickBestTransparency(image));

    Graphics2D g = thumbnailImage.createGraphics();
    g.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
    g.drawImage(image, 0, 0, imgSize.width, imgSize.height, null);
    g.dispose();

    // Use png to preserve transparency
    FileUtils.writeByteArrayToFile(thumbnailFile, ImageUtil.imageToBytes(thumbnailImage, "png"));

    return thumbnailImage;
}

From source file:org.kitodo.imagemanagementmodule.ImageManagementModuleIT.java

@Test
public void testChangeDpi() throws IOException, InfoException {
    assert new File(_00000001_TIF).exists();
    ImageManagementInterface module = new ImageManagementModule();
    Image image = module.changeDpi(new File(_00000001_TIF).toURI(), 300);
    assertThat(72 * image.getWidth(null) / new Info(_00000001_TIF, true).getImageWidth(), is(equalTo(300)));

}

From source file:org.kitodo.imagemanagement.ImageManagementIT.java

@Test
public void testChangeDpi() throws IOException, InfoException {
    assert new File(_00000001_TIF).exists();
    ImageManagementInterface module = new ImageManagement();
    Image image = module.changeDpi(new File(_00000001_TIF).toURI(), 300);
    assertEquals(300, 72 * image.getWidth(null) / new Info(_00000001_TIF, true).getImageWidth());

}

From source file:org.kitodo.imagemanagementmodule.ImageManagementModuleIT.java

@Test
public void testGetSizedWebImage() throws IOException {
    assert new File(_00000001_TIF).exists();
    ImageManagementInterface module = new ImageManagementModule();
    Image scaledWebImage = module.getSizedWebImage(new File(_00000001_TIF).toURI(), 150);
    assertThat(scaledWebImage.getWidth(null), is(equalTo(150)));
}

From source file:org.kitodo.imagemanagementmodule.ImageManagementModuleIT.java

@Test
public void testGetScaledWebImage() throws IOException, InfoException {
    assert new File(_00000001_TIF).exists();
    ImageManagementInterface module = new ImageManagementModule();
    Image scaledWebImage = module.getScaledWebImage(new File(_00000001_TIF).toURI(), 0.3);
    assertThat(scaledWebImage.getWidth(null),
            is((int) Math.round(0.3 * new Info(_00000001_TIF, true).getImageWidth())));
}

From source file:net.sf.maltcms.chromaui.project.spi.nodes.DescriptorNode.java

@Override
public Image getIcon(int type) {
    Image descrImage = DescriptorFactory.getImage(getBean());
    int w = descrImage.getWidth(null);
    int h = descrImage.getHeight(null);
    if (getBean() instanceof IColorizableDescriptor) {
        IColorizableDescriptor colorDescr = (IColorizableDescriptor) getBean();
        Color c = colorDescr.getColor();
        if (c != null) {
            BufferedImage bi = new BufferedImage(w / 10, h / 10, BufferedImage.TYPE_INT_ARGB);
            Graphics2D g2 = bi.createGraphics();

            g2.setColor(colorDescr.getColor());
            g2.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.9f));
            g2.fillRect(0, 0, bi.getWidth(), bi.getHeight());
            descrImage = ImageUtilities.mergeImages(bi, descrImage, w - bi.getWidth(), h - bi.getHeight());
        }//from www.j  a va2 s .  c o m
    }
    return descrImage;
}

From source file:org.kitodo.imagemanagement.ImageManagementIT.java

@Test
public void testGetSizedWebImage() throws IOException {
    assert new File(_00000001_TIF).exists();
    ImageManagementInterface module = new ImageManagement();
    Image scaledWebImage = module.getSizedWebImage(new File(_00000001_TIF).toURI(), 150);
    assertEquals(150, scaledWebImage.getWidth(null));
}

From source file:ScreenCapture.java

public void setImage(Image image) {
    this.image = image;
    setPreferredSize(new Dimension(image.getWidth(this), image.getHeight(this)));
    revalidate();//from   w  w w  . j  a  va 2  s.c o  m
    startPoint.x = endPoint.x;
    startPoint.y = endPoint.y;
    repaint();
}

From source file:ImageProcessingTest.java

/**
 * Open a file and load the image.//w w  w  .  j  a va  2 s . c o m
 */
public void openFile() {
    JFileChooser chooser = new JFileChooser();
    chooser.setCurrentDirectory(new File("."));
    String[] extensions = ImageIO.getReaderFileSuffixes();
    chooser.setFileFilter(new FileNameExtensionFilter("Image files", extensions));
    int r = chooser.showOpenDialog(this);
    if (r != JFileChooser.APPROVE_OPTION)
        return;

    try {
        Image img = ImageIO.read(chooser.getSelectedFile());
        image = new BufferedImage(img.getWidth(null), img.getHeight(null), BufferedImage.TYPE_INT_RGB);
        image.getGraphics().drawImage(img, 0, 0, null);
    } catch (IOException e) {
        JOptionPane.showMessageDialog(this, e);
    }
    repaint();
}