Example usage for java.awt Graphics2D dispose

Introduction

In this page you can find the example usage for java.awt Graphics2D dispose.

Prototype

public abstract void dispose();

Source Link

Document

Disposes of this graphics context and releases any system resources that it is using.

Usage

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;//  w w  w  . j a va 2s.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:QuestionGUI.java

/**
 * Converts a given Image into a BufferedImage
 *
 * CREDIT/*w w w . j  av  a  2s .  co m*/
 * https://code.google.com/p/game-engine-for-java/source/browse/src/com/gej/util/ImageTool.java#31
 *
 * @param img The Image to be converted
 * @return The converted BufferedImage
 */
private static BufferedImage toBufferedImage(Image img) {
    if (img instanceof BufferedImage) {
        return (BufferedImage) img;
    }

    // Create a buffered image with transparency
    BufferedImage bimage = new BufferedImage(img.getWidth(null), img.getHeight(null),
            BufferedImage.TYPE_INT_ARGB);

    // Draw the image on to the buffered image
    Graphics2D bGr = bimage.createGraphics();
    bGr.drawImage(img, 0, 0, null);
    bGr.dispose();

    // Return the buffered image
    return bimage;
}

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From source file:com.reydentx.core.common.PhotoUtils.java

public static byte[] scaleBufferedImage(boolean isPNG, BufferedImage originalImage, int x, int y, int width,
        int height) {
    byte[] imageFinal = null;
    try {// w ww  .j ava  2  s  .c  om
        if (originalImage != null) {
            int type = (originalImage.getType() == 0) ? BufferedImage.TYPE_INT_ARGB : originalImage.getType();
            BufferedImage resizedImage = new BufferedImage(width, height, type);
            Graphics2D g = resizedImage.createGraphics();
            ByteArrayOutputStream outstream = new ByteArrayOutputStream();
            g.drawImage(originalImage, x, y, width, height, null);
            g.dispose();

            if (isPNG) {
                ImageIO.write(resizedImage, "png", outstream);
            } else {
                ImageIO.write(resizedImage, "jpg", outstream);
            }
            imageFinal = outstream.toByteArray();
        }
    } catch (IOException ex) {
    }
    return imageFinal;
}

---

From source file:it.reexon.lib.files.FileUtils.java

/**
 * Convenience method that returns a scaled instance of the provided {@code BufferedImage}. 
 *  /*from   w  w w .  j a v a  2  s .c  o m*/
 * @param img the original image to be scaled 
 * @param targetWidth the desired width of the scaled instance, in pixels 
 * @param targetHeight the desired height of the scaled instance, in pixels 
 * @param hint one of the rendering hints that corresponds to {@code RenderingHints.KEY_INTERPOLATION} (e.g. 
 *        {@code RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR}, {@code RenderingHints.VALUE_INTERPOLATION_BILINEAR}, 
 *        {@code RenderingHints.VALUE_INTERPOLATION_BICUBIC}) 
 * @param higherQuality if true, this method will use a multi-step scaling technique that provides higher quality than the 
 *        usual one-step technique (only useful in downscaling cases, where {@code targetWidth} or {@code targetHeight} is 
 *        smaller than the original dimensions, and generally only when the {@code BILINEAR} hint is specified) 
 * @return a scaled version of the original {@code BufferedImage} 
 */
public static BufferedImage getScaledInstance(BufferedImage img, int targetWidth, int targetHeight, Object hint,
        boolean higherQuality) {
    final int type = img.getTransparency() == Transparency.OPAQUE ? BufferedImage.TYPE_INT_RGB
            : BufferedImage.TYPE_INT_ARGB;
    BufferedImage ret = img;
    int w;
    int h;
    if (higherQuality) {
        // Use multi-step technique: start with original size, then 
        // scale down in multiple passes with drawImage() 
        // until the target size is reached 
        w = img.getWidth();
        h = img.getHeight();
    } else {
        // Use one-step technique: scale directly from original 
        // size to target size with a single drawImage() call 
        w = targetWidth;
        h = targetHeight;
    }

    do {
        if (higherQuality && w > targetWidth) {
            w /= 2;
            if (w < targetWidth) {
                w = targetWidth;
            }
        }

        if (higherQuality && h > targetHeight) {
            h /= 2;
            if (h < targetHeight) {
                h = targetHeight;
            }
        }

        final BufferedImage tmp = new BufferedImage(w, h, type);
        final Graphics2D g2 = tmp.createGraphics();
        g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION, hint);
        g2.drawImage(ret, 0, 0, w, h, null);
        g2.dispose();

        ret = tmp;
    } while (w != targetWidth || h != targetHeight);

    return ret;
}

---

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();

    return resizedImage;
}

---

From source file:net.sf.mcf2pdf.mcfelements.util.ImageUtil.java

/**
 * Rotates the given buffered image by the given angle, and returns a newly
 * created image, containing the rotated image.
 *
 * @param img Image to rotate.//  w  ww  . jav  a 2s. c  om
 * @param angle Angle, in radians, by which to rotate the image.
 * @param drawOffset Receives the offset which is required to draw the image,
 * relative to the original (0,0) corner, so that the center of the image is
 * still on the same position.
 *
 * @return A newly created image containing the rotated image.
 */
public static BufferedImage rotateImage(BufferedImage img, float angle, Point drawOffset) {
    int w = img.getWidth();
    int h = img.getHeight();

    AffineTransform tf = AffineTransform.getRotateInstance(angle, w / 2.0, h / 2.0);

    // get coordinates for all corners to determine real image size
    Point2D[] ptSrc = new Point2D[4];
    ptSrc[0] = new Point(0, 0);
    ptSrc[1] = new Point(w, 0);
    ptSrc[2] = new Point(w, h);
    ptSrc[3] = new Point(0, h);

    Point2D[] ptTgt = new Point2D[4];
    tf.transform(ptSrc, 0, ptTgt, 0, ptSrc.length);

    Rectangle rc = new Rectangle(0, 0, w, h);

    for (Point2D p : ptTgt) {
        if (p.getX() < rc.x) {
            rc.width += rc.x - p.getX();
            rc.x = (int) p.getX();
        }
        if (p.getY() < rc.y) {
            rc.height += rc.y - p.getY();
            rc.y = (int) p.getY();
        }
        if (p.getX() > rc.x + rc.width)
            rc.width = (int) (p.getX() - rc.x);
        if (p.getY() > rc.y + rc.height)
            rc.height = (int) (p.getY() - rc.y);
    }

    BufferedImage imgTgt = new BufferedImage(rc.width, rc.height, BufferedImage.TYPE_INT_ARGB);
    Graphics2D g2d = imgTgt.createGraphics();

    // create a NEW rotation transformation around new center
    tf = AffineTransform.getRotateInstance(angle, rc.getWidth() / 2, rc.getHeight() / 2);
    g2d.setTransform(tf);
    g2d.drawImage(img, -rc.x, -rc.y, null);
    g2d.dispose();

    drawOffset.x += rc.x;
    drawOffset.y += rc.y;

    return imgTgt;
}

---

From source file:net.imglib2.script.analysis.ChartUtils.java

public static final Img<ARGBType> asImage(final JFreeChart chart, int width, int height) {
    final ChartPanel panel = new ChartPanel(chart);
    final Dimension d = panel.getPreferredSize();
    if (-1 == width && -1 == height) {
        width = d.width;/*from w w w. j  a va2s. co m*/
        height = d.height;
        panel.setSize(d);
    } else {
        panel.setSize(width, height);
    }
    layoutComponent(panel);
    final BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
    final Graphics2D g = bi.createGraphics();
    if (!panel.isOpaque()) {
        g.setColor(panel.getBackground());
        g.fillRect(0, 0, width, height);
    }
    panel.paint(g);
    final int[] pixels = new int[width * height];
    final PixelGrabber pg = new PixelGrabber(bi, 0, 0, width, height, pixels, 0, width);
    try {
        pg.grabPixels();
    } catch (final InterruptedException e) {
    }
    g.dispose();

    final ArrayImg<ARGBType, IntArray> a = new ArrayImg<ARGBType, IntArray>(new IntArray(pixels),
            new long[] { width, height }, 1);

    // create a Type that is linked to the container
    final ARGBType linkedType = new ARGBType(a);
    // pass it to the DirectAccessContainer
    a.setLinkedType(linkedType);

    return a;
}

---

From source file:com.galenframework.utils.GalenUtils.java

/**
 * Check the devicePixelRatio and adapts the size of the screenshot as if the ratio was 1.0
 * @param driver/*w  w  w. j av a 2s . c  o  m*/
 * @param screenshotImage
 * @return
 */
public static BufferedImage resizeScreenshotIfNeeded(WebDriver driver, BufferedImage screenshotImage) {
    Double devicePixelRatio = ((Number) ((JavascriptExecutor) driver)
            .executeScript(JS_RETRIEVE_DEVICE_PIXEL_RATIO)).doubleValue();

    if (devicePixelRatio > 1.0 && screenshotImage.getWidth() > 0) {
        Long screenSize = (Long) ((JavascriptExecutor) driver).executeScript(
                "return Math.max(" + "document.body.scrollWidth, document.documentElement.scrollWidth,"
                        + "document.body.offsetWidth, document.documentElement.offsetWidth,"
                        + "document.body.clientWidth, document.documentElement.clientWidth);");

        Double estimatedPixelRatio = ((double) screenshotImage.getWidth()) / ((double) screenSize);

        if (estimatedPixelRatio > 1.0) {

            int newWidth = (int) (screenshotImage.getWidth() / estimatedPixelRatio);
            int newHeight = (int) (screenshotImage.getHeight() / estimatedPixelRatio);

            Image tmp = screenshotImage.getScaledInstance(newWidth, newHeight, Image.SCALE_SMOOTH);
            BufferedImage scaledImage = new BufferedImage(newWidth, newHeight, BufferedImage.TYPE_INT_RGB);

            Graphics2D g2d = scaledImage.createGraphics();
            g2d.drawImage(tmp, 0, 0, null);
            g2d.dispose();

            return scaledImage;
        } else
            return screenshotImage;
    } else
        return screenshotImage;
}

---

From source file:com.shending.support.CompressPic.java

/**
 * ?//from w  w w.ja v a 2 s .c om
 *
 * @param srcFile
 * @param dstFile
 * @param widthRange
 * @param heightRange
 */
public static void cutSquare(String srcFile, String dstFile, int widthRange, int heightRange, int width,
        int height) {
    int x = 0;
    int y = 0;
    try {
        ImageInputStream iis = ImageIO.createImageInputStream(new File(srcFile));
        Iterator<ImageReader> iterator = ImageIO.getImageReaders(iis);
        ImageReader reader = (ImageReader) iterator.next();
        reader.setInput(iis, true);
        ImageReadParam param = reader.getDefaultReadParam();
        int oldWidth = reader.getWidth(0);
        int oldHeight = reader.getHeight(0);
        int newWidth, newHeight;
        if (width <= oldWidth && height <= oldHeight) {
            newWidth = oldHeight * widthRange / heightRange;
            if (newWidth < oldWidth) {
                newHeight = oldHeight;
                x = (oldWidth - newWidth) / 2;
            } else {
                newWidth = oldWidth;
                newHeight = oldWidth * heightRange / widthRange;
                y = (oldHeight - newHeight) / 2;
            }
            Rectangle rectangle = new Rectangle(x, y, newWidth, newHeight);
            param.setSourceRegion(rectangle);
            BufferedImage bi = reader.read(0, param);
            BufferedImage tag = new BufferedImage((int) width, (int) height, BufferedImage.TYPE_INT_RGB);
            tag.getGraphics().drawImage(bi.getScaledInstance(width, height, Image.SCALE_SMOOTH), 0, 0, null);
            File file = new File(dstFile);
            ImageIO.write(tag, reader.getFormatName(), file);
        } else {
            BufferedImage bi = reader.read(0, param);
            BufferedImage tag = new BufferedImage((int) width, (int) height, BufferedImage.TYPE_INT_RGB);
            Graphics2D g2d = tag.createGraphics();
            g2d.setColor(Color.WHITE);
            g2d.fillRect(0, 0, tag.getWidth(), tag.getHeight());
            g2d.drawImage(bi.getScaledInstance(bi.getWidth(), bi.getHeight(), Image.SCALE_SMOOTH),
                    (width - bi.getWidth()) / 2, (height - bi.getHeight()) / 2, null);
            g2d.dispose();
            File file = new File(dstFile);
            ImageIO.write(tag, reader.getFormatName(), file);
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}

---

From source file:de.mprengemann.intellij.plugin.androidicons.images.ImageUtils.java

private static void enforceBorderColors(BufferedImage inputImage) {
    Graphics2D g = inputImage.createGraphics();
    g.setBackground(new Color(0, 0, 0, 0));
    g.clearRect(1, 1, inputImage.getWidth() - 2, inputImage.getHeight() - 2);
    g.dispose();
    int w = inputImage.getWidth();
    int h = inputImage.getHeight();
    int[] rgb = new int[w * h];

    inputImage.getRGB(0, 0, w, h, rgb, 0, w);

    for (int i = 0; i < rgb.length; i++) {
        if ((0xff000000 & rgb[i]) != 0) {
            rgb[i] = 0xff000000;/*from   w w w. j av  a2s  .c  o  m*/
        }
    }
    inputImage.setRGB(0, 0, w, h, rgb, 0, w);
}

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