Example usage for java.awt.image BufferedImage createGraphics

Introduction

In this page you can find the example usage for java.awt.image BufferedImage createGraphics.

Prototype

public Graphics2D createGraphics() 

Source Link

Document

Creates a Graphics2D , which can be used to draw into this BufferedImage .

Usage

From source file:peakml.graphics.JFreeChartTools.java

/**
 * This method writes the given graph to the output stream in the PNG format.
 * // w w w . j  a v a2 s.  c o  m
 * @param out         The output stream to write to.
 * @param chart         The chart to be written.
 * @param width         The width of the image.
 * @param height      The height of the image.
 * @throws IOException   Thrown when an error occurs with the IO.
 */
public static void writeAsPNG(OutputStream out, JFreeChart chart, int width, int height) throws IOException {
    BufferedImage graph_img = new BufferedImage(800, 500, BufferedImage.TYPE_INT_ARGB);
    chart.draw(graph_img.createGraphics(), new java.awt.Rectangle(0, 0, 800, 500));
    javax.imageio.ImageIO.write(graph_img, "png", out);
}

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From source file:jmbench.plots.UtilPlotPdf.java

protected static BufferedImage draw(JFreeChart chart, int width, int height) {
    BufferedImage img = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
    Graphics2D g2 = img.createGraphics();

    chart.draw(g2, new Rectangle2D.Double(0, 0, width, height));

    g2.dispose();/*  w ww  .  j  a  va 2s . c om*/
    return img;
}

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From source file:Main.java

public static BufferedImage asCompatibleImage(Image img, int transparency) {
    BufferedImage ret = defaultScreenDeviceConfiguration().createCompatibleImage(img.getWidth(null),
            img.getHeight(null), transparency);
    Graphics2D gc = ret.createGraphics();
    gc.setComposite(AlphaComposite.Src);
    gc.drawImage(img, 0, 0, null);/*from w w  w.  j  ava  2  s .com*/
    gc.dispose();
    return ret;
}

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From source file:net.dv8tion.jda.utils.AvatarUtil.java

private static BufferedImage resize(BufferedImage originalImage) {
    BufferedImage resizedImage = new BufferedImage(SIZE, SIZE, BufferedImage.TYPE_INT_RGB);
    Graphics2D g = resizedImage.createGraphics();

    g.setComposite(AlphaComposite.Src);
    g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
    g.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
    g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);

    g.drawImage(originalImage, 0, 0, SIZE, SIZE, Color.white, null);

    g.dispose();//from   w  ww .  j a  v a  2s .  c om

    return resizedImage;
}

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From source file:com.seleniumtests.util.imaging.ImageProcessor.java

/**
 * cut part of an image/*  ww  w.  ja v a 2s  .c  om*/
 * @param img      source image
 * @param cropX      x coord of the top left point
 * @param cropY      y coord of the top left point
 * @param width      width of picture portion to keep
 * @param height   height of picture portion to keep
 * @return          cut image
 */
public static BufferedImage cropImage(BufferedImage img, Integer cropX, Integer cropY, Integer width,
        Integer height) {

    BufferedImage newImg = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
    newImg.createGraphics().drawImage(img, 0, 0, width, height, cropX, cropY, cropX + width, cropY + height,
            null);

    return newImg;
}

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From source file:QRCode.java

public static String createQRCode(String arg) {
    int size = 125;
    String fileType = "png";
    File myFile = null;/*  ww  w. j  a  v a  2s  .  c  o m*/
    UUID uuid = UUID.nameUUIDFromBytes(arg.getBytes());

    try {
        myFile = File.createTempFile("temp-file-name", ".png");

        Hashtable<EncodeHintType, ErrorCorrectionLevel> hintMap = new Hashtable<EncodeHintType, ErrorCorrectionLevel>();
        hintMap.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.L);
        QRCodeWriter qrCodeWriter = new QRCodeWriter();
        BitMatrix byteMatrix = qrCodeWriter.encode(uuid.toString(), BarcodeFormat.QR_CODE, size, size, hintMap);
        int CrunchifyWidth = byteMatrix.getWidth();
        BufferedImage image = new BufferedImage(CrunchifyWidth, CrunchifyWidth, BufferedImage.TYPE_INT_RGB);
        image.createGraphics();

        Graphics2D graphics = (Graphics2D) image.getGraphics();
        graphics.setColor(Color.WHITE);
        graphics.fillRect(0, 0, CrunchifyWidth, CrunchifyWidth);
        graphics.setColor(Color.BLACK);

        for (int i = 0; i < CrunchifyWidth; i++) {
            for (int j = 0; j < CrunchifyWidth; j++) {
                if (byteMatrix.get(i, j)) {
                    graphics.fillRect(i, j, 1, 1);
                }
            }
        }
        ImageIO.write(image, fileType, myFile);
        //System.out.println("\n\nYou have successfully created QR Code " + myFile.getCanonicalPath());
        return myFile.getCanonicalPath();
    } catch (WriterException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }

    return null;
}

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From source file:de.laures.cewolf.util.ImageHelper.java

public static BufferedImage loadBufferedImage(String fileName) {
    Image image = loadImage(fileName);
    if (image instanceof BufferedImage) {
        return (BufferedImage) image;
    }//ww  w  .j a  va  2s . c om
    /*        final boolean hasAlpha = hasAlpha(image);
    int transparency = Transparency.OPAQUE;
    if (hasAlpha) {
    transparency = Transparency.BITMASK;
    }*/
    int width = (int) Math.max(1.0, image.getWidth(null));
    int height = (int) Math.max(1.0, image.getHeight(null));
    // BufferedImage bimage = GRAPHICS_CONV.createCompatibleImage(width, height, transparency);
    BufferedImage bimage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
    final Graphics g = bimage.createGraphics();
    g.drawImage(image, 0, 0, null);
    g.dispose();
    return bimage;
}

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From source file:script.imglib.analysis.ChartUtils.java

public static final Image<RGBALegacyType> asImage(final JFreeChart chart, int width, int height) {
    ChartPanel panel = new ChartPanel(chart);
    Dimension d = panel.getPreferredSize();
    if (-1 == width && -1 == height) {
        width = d.width;/*from  w ww. java2 s . c o  m*/
        height = d.height;
        panel.setSize(d);
    } else {
        panel.setSize(width, height);
    }
    layoutComponent(panel);
    BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
    Graphics2D g = bi.createGraphics();
    if (!panel.isOpaque()) {
        g.setColor(panel.getBackground());
        g.fillRect(0, 0, width, height);
    }
    panel.paint(g);
    int[] pixels = new int[width * height];
    PixelGrabber pg = new PixelGrabber(bi, 0, 0, width, height, pixels, 0, width);
    try {
        pg.grabPixels();
    } catch (InterruptedException e) {
    }
    g.dispose();

    Array<RGBALegacyType, IntAccess> a = new Array<RGBALegacyType, IntAccess>(new ArrayContainerFactory(),
            new IntArray(pixels), new int[] { width, height }, 1);
    // create a Type that is linked to the container
    final RGBALegacyType linkedType = new RGBALegacyType(a);
    // pass it to the DirectAccessContainer
    a.setLinkedType(linkedType);

    return new Image<RGBALegacyType>(a, new RGBALegacyType());
}

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From source file:com.seleniumtests.util.imaging.ImageProcessor.java

/**
 * Agregate 2 pictures//w  ww .j  a  v a 2  s .  c o m
 * @param imgf1         first picture to agregate
 * @param imgf2         seconde picture to aggregate
 * @param img2PosX      X coord where second picture will be but, relative to first one 
 * @param img2PosY      Y coord where second picture will be but, relative to first one 
 * @return            the complete picture
 */
public static BufferedImage concat(BufferedImage img1, BufferedImage img2, Integer img2PosX, Integer img2PosY) {

    if (img2PosX < 0 || img2PosY < 0) {
        throw new IllegalArgumentException("relative position must be > 0");
    }

    Integer finalWidth = Math.max(img2.getWidth() + img2PosX, img1.getWidth());
    Integer finalHeight = Math.max(img2.getHeight() + img2PosY, img1.getHeight());

    BufferedImage img = new BufferedImage(finalWidth, finalHeight, BufferedImage.TYPE_INT_RGB);

    img.createGraphics().drawImage(img1, 0, 0, null);
    img.createGraphics().drawImage(img2, img2PosX, img2PosY, null);

    return img;
}

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From source file:Utils.java

/** 
 * Renders a component into an image, which is useful for playing with the component's 
 * resultant image in special effects or transitions
 *
 * @param component The component to render
 * @return A buffered image with the rendered component. 
 *///from w  w w  .  ja v  a 2  s  .c  o  m
public static BufferedImage renderComponentToImage(JComponent component) {
    //Create the image
    BufferedImage image = createCompatibleImage(component.getWidth(), component.getHeight());

    //Render the component onto the image
    Graphics graphics = image.createGraphics();
    //      component.update(graphics);
    component.paint(graphics);
    graphics.dispose();
    return image;
}

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