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:com.actelion.research.orbit.imageAnalysis.utils.ImageUtils.java

/**
 * Rescales using arbitrary intensities and converts to 8bit. Works for gray- and rgb color images.
 *
 * @param bi16//from w  w  w.  j a  va  2s.  co m
 * @return
 */
public static BufferedImage convertTo8bit(BufferedImage bi16, double intScalingMin, double intScalignMax) {
    // TODO: use min,max from plate meta data, not image specific
    int[][] minMax = ImageUtils.getMinMaxIntensitiesOfBI(bi16);
    BufferedImage bi = null;
    if (bi16.getSampleModel().getNumBands() == 1) {
        bi16 = ImageUtils.scaleIntensities(bi16, getPercentileIntensity(bi16, intScalingMin),
                getPercentileIntensity(bi16, intScalignMax));
        bi = new BufferedImage(bi16.getWidth(), bi16.getHeight(), BufferedImage.TYPE_BYTE_GRAY);
    } else if (bi16.getSampleModel().getNumBands() == 3) {
        bi16 = ImageUtils.scaleIntensities(bi16, getPercentileIntensity(bi16, intScalingMin),
                getPercentileIntensity(bi16, intScalignMax));
        bi = new BufferedImage(bi16.getWidth(), bi16.getHeight(), BufferedImage.TYPE_INT_RGB);
    } else {
        throw new IllegalArgumentException(
                "Only images with 1 band (gray-color) or 3 bands (rgb) supported. This image has "
                        + bi16.getSampleModel().getNumBands() + " bands.");
    }
    Graphics2D g2d = bi.createGraphics();
    g2d.drawImage(bi16, 0, 0, null);
    g2d.dispose();
    return bi;
}

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From source file:Main.java

public static void draw(BufferedImage imageBG, BufferedImage imageFG) {
    Ellipse2D.Double ellipse1 = new Ellipse2D.Double(20, 20, 30, 30);
    Ellipse2D.Double ellipse2 = new Ellipse2D.Double(25, 25, 30, 30);
    Area circle = new Area(ellipse1);
    circle.subtract(new Area(ellipse2));

    Graphics2D g = imageBG.createGraphics();
    g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    g.setRenderingHint(RenderingHints.KEY_DITHERING, RenderingHints.VALUE_DITHER_ENABLE);
    g.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS, RenderingHints.VALUE_FRACTIONALMETRICS_ON);
    g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
    g.setClip(circle);//from   w  w w .jav  a2 s  .c o  m
    g.drawImage(imageFG, 0, 0, null);
    g.setClip(null);
    Stroke s = new BasicStroke(2);
    g.setStroke(s);
    g.setColor(Color.BLACK);
    g.draw(circle);
    g.dispose();

    JLabel l = new JLabel(new ImageIcon(imageBG));
    JOptionPane.showMessageDialog(null, l);
}

---

From source file:com.actelion.research.orbit.imageAnalysis.utils.ImageUtils.java

/**
 * Rescales using plate intensities and converts to 8bit. Works for gray- and rgb color images.
 *
 * @param bi16//from   w w w.  j  ava 2  s.c om
 * @return
 */
public static BufferedImage convertTo8bit(int rdfId, BufferedImage bi16, PlateScalingMin plateScalingMin,
        PlateScalingMax plateScalingMax) throws Exception {
    RawDataFile rdf = DALConfig.getImageProvider().LoadRawDataFile(rdfId);
    /*
    if (plateScalingMin==defaultPlateScalingMin && plateScalingMax==defaultPlateScalingMax) {
        // /orbitvol1/2014-11/4309324.1002.jpg
        String url = RawUtils.STR_SERVER+"/rawFile?rawFile="+rdf.getDataPath()+"/"+rdfId+"."+RawUtils.LEVEL_8BITPREVIEW+".jpg";
        System.out.println("url: " + url);
        return ImageIO.read(new URL(url));
    }
    */

    RawData rd = DALConfig.getImageProvider().LoadRawData(rdf.getRawDataId());
    List<RawMeta> rmList = DALConfig.getImageProvider().LoadRawMetasByRawDataFile(rdfId);
    List<RawMeta> rmDataList = DALConfig.getImageProvider().LoadRawMetasByRawData(rd.getRawDataId());
    rmList.addAll(rmDataList);
    HashMap<String, RawMeta> rmHash = RawUtilsCommon.getHashFromMetaList(rmList);

    if (!rmHash.containsKey(RawUtilsCommon.STR_META_CHANNEL))
        throw new Exception("Error: Meta data 'Channel' not available for RawDataFile " + rdfId);
    //int channel = Integer.parseInt(rmHash.get(RawUtils.STR_META_CHANNEL).getValue()) - 1;
    int channel = Integer.parseInt(rmHash.get(RawUtilsCommon.STR_META_CHANNEL).getValue());
    String metaKey = "Percentiles_wvlength_" + channel + "_channel_0";
    if (!rmHash.containsKey(metaKey))
        throw new Exception("Error: Meta data '" + metaKey + "' not available for RawDataFile " + rdfId);
    String val = rmHash.get(metaKey).getValue();
    int[] minmax = parseMinMax(val, plateScalingMin, plateScalingMax);

    BufferedImage bi = null;
    if (bi16.getSampleModel().getNumBands() == 1) {
        bi16 = ImageUtils.scaleIntensities(bi16, new int[] { minmax[0] }, new int[] { minmax[1] });
        bi = new BufferedImage(bi16.getWidth(), bi16.getHeight(), BufferedImage.TYPE_BYTE_GRAY);
    } else {
        throw new IllegalArgumentException("Only images with 1 band (gray-color) supported. This image has "
                + bi16.getSampleModel().getNumBands() + " bands.");
    }
    Graphics2D g2d = bi.createGraphics();
    g2d.drawImage(bi16, 0, 0, null);
    g2d.dispose();
    return bi;
}

---

From source file:Main.java

public static BufferedImage createRotatedTextImage(String text, int angle, Font ft) {
    Graphics2D g2d = null;
    try {/*from  w  ww. ja v  a  2  s  . c o m*/
        if (text == null || text.trim().length() == 0) {
            return null;
        }

        BufferedImage stringImage = new BufferedImage(1, 1, BufferedImage.TYPE_INT_ARGB);

        g2d = (Graphics2D) stringImage.getGraphics();
        g2d.setFont(ft);

        FontMetrics fm = g2d.getFontMetrics();
        Rectangle2D bounds = fm.getStringBounds(text, g2d);

        TextLayout tl = new TextLayout(text, ft, g2d.getFontRenderContext());

        g2d.dispose();
        g2d = null;

        return createRotatedImage(tl, (int) bounds.getWidth(), (int) bounds.getHeight(), angle);
    } catch (Exception e) {
        e.printStackTrace();

        if (g2d != null) {
            g2d.dispose();
        }
    }

    return null;
}

---

From source file:Main.java

public static BufferedImage takeScreenShot(Component component, String... watermarks) {

    Dimension size = component.getSize();

    BufferedImage screenshot = new BufferedImage(size.width, size.height, Transparency.OPAQUE);
    Graphics2D g = screenshot.createGraphics();
    g.setClip(0, 0, size.width - 1, size.height - 1);

    component.update(g);/*from   w w w . jav a2 s .  co m*/

    FontMetrics fm = g.getFontMetrics();
    int y = fm.getDescent();
    for (String watermark : watermarks)
        if (watermark != null) {
            int x = size.width - SwingUtilities.computeStringWidth(fm, watermark);

            g.setColor(Color.black);
            g.drawString(watermark, x, y);

            g.setColor(Color.white);
            g.drawString(watermark, x - 1, y - 1);

            y -= fm.getHeight();
        }

    g.dispose();

    return screenshot;
}

---

From source file:be.fedict.eid.applet.maven.DocbookMojo.java

private static void graphToFile(BasicVisualizationServer<String, String> visualization, File file)
        throws IOException {
    Dimension size = visualization.getSize();
    int width = (int) (size.getWidth() + 1);
    int height = (int) (size.getHeight() + 1);
    BufferedImage bufferedImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
    Graphics2D graphics = bufferedImage.createGraphics();
    graphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    graphics.setColor(Color.WHITE);
    graphics.fillRect(0, 0, 900, 650);//  w w  w  . ja  v  a2 s. co m
    visualization.setBounds(0, 0, 900, 650);
    visualization.paint(graphics);
    graphics.dispose();
    ImageIO.write(bufferedImage, "png", file);
}

---

From source file:Main.java

private static BufferedImage renderRotatedObject(Object src, double angle, int width, int height, double tx,
        double ty) {
    BufferedImage dest = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);

    Graphics2D g2d = (Graphics2D) dest.getGraphics();
    g2d.setColor(Color.black);// ww  w. j  a  va  2  s .c o m
    g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
    g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);

    AffineTransform at = AffineTransform.getRotateInstance(angle);
    at.translate(tx, ty);
    g2d.setTransform(at);

    if (src instanceof TextLayout) {
        TextLayout tl = (TextLayout) src;
        tl.draw(g2d, 0, tl.getAscent());
    } else if (src instanceof Image) {
        g2d.drawImage((Image) src, 0, 0, null);
    }
    g2d.dispose();

    return dest;
}

---

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

/**
 * Create a copy of the image that is compatible with the current graphics context and scaled to the supplied size
 *//*  ww w  .  j  ava  2s.  c  o m*/
public static BufferedImage createCompatibleImage(Image img, int width, int height, Map<String, Object> hints) {
    width = Math.max(width, 1);
    height = Math.max(height, 1);

    int transparency;
    if (hints != null && hints.containsKey(HINT_TRANSPARENCY)) {
        transparency = (Integer) hints.get(HINT_TRANSPARENCY);
    } else {
        transparency = pickBestTransparency(img);
    }
    BufferedImage compImg = new BufferedImage(width, height, transparency);

    Graphics2D g = null;
    try {
        g = compImg.createGraphics();
        g.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);

        g.drawImage(img, 0, 0, width, height, null);
    } finally {
        if (g != null) {
            g.dispose();
        }
    }
    return compImg;
}

---

From source file:de.xirp.chart.ChartUtil.java

/**
 * Exports the given chart as PDF in the specified size. The
 * export is written to the given path./*from  ww w  . j  av a2s  .  c  om*/
 * 
 * @param chart
 *            The chart to export.
 * @param width
 *            The desired width of the PDF.
 * @param height
 *            The desired height of the PDF.
 * @param path
 *            The path to write the PDF to.
 * @see org.jfree.chart.JFreeChart
 */
private static void exportPDF(JFreeChart chart, int width, int height, String path) {
    Document document = new Document(new Rectangle(width, height));
    try {
        PdfWriter writer;
        writer = PdfWriter.getInstance(document, new FileOutputStream(path));
        document.open();
        PdfContentByte cb = writer.getDirectContent();
        PdfTemplate tp = cb.createTemplate(width, height);
        Graphics2D g2d = tp.createGraphics(width, height, new DefaultFontMapper());
        Rectangle2D r2d = new Rectangle2D.Double(0, 0, width, height);
        chart.draw(g2d, r2d);
        g2d.dispose();
        cb.addTemplate(tp, 0, 0);
    } catch (Exception e) {
        logClass.error("Error: " + e.getMessage() //$NON-NLS-1$
                + Constants.LINE_SEPARATOR, e);
    }
    document.close();
}

---

From source file:com.t3.image.ImageUtil.java

/**
 * Create a copy of the image that is compatible with the current graphics context
 * and scaled to the supplied size/*from w  ww .j  a va  2  s  .  c  o  m*/
 */
public static BufferedImage createCompatibleImage(Image img, int width, int height, Map<String, Object> hints) {

    width = Math.max(width, 1);
    height = Math.max(height, 1);

    int transparency;
    if (hints != null && hints.containsKey(HINT_TRANSPARENCY)) {
        transparency = (Integer) hints.get(HINT_TRANSPARENCY);
    } else {
        transparency = pickBestTransparency(img);
    }
    BufferedImage compImg = new BufferedImage(width, height, transparency);

    Graphics2D g = null;
    try {
        g = compImg.createGraphics();
        g.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);

        g.drawImage(img, 0, 0, width, height, null);
    } finally {
        if (g != null) {
            g.dispose();
        }
    }

    return compImg;
}

---

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