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:TexturedPanel.java

/**
 * Creates a new TexturePaint using the provided icon.
 *///from w  w w. j  ava  2  s .c  o m
private void setupIconPainter(Icon texture) {
    if (texture == null) {
        ourPainter = null;
        return;
    }

    int w = texture.getIconWidth();
    int h = texture.getIconHeight();

    if (w <= 0 || h <= 0) {
        ourPainter = null;
        return;
    }

    BufferedImage buff = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB_PRE);

    Graphics2D g2 = buff.createGraphics();
    texture.paintIcon(this, g2, 0, 0);
    ourPainter = new TexturePaint(buff, new Rectangle(0, 0, w, h));

    g2.dispose();
}

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From source file:IconDemoApp.java

/**
 * Resizes an image using a Graphics2D object backed by a BufferedImage.
 * //from  w w  w. j  a  v a2s  .co m
 * @param srcImg -
 *            source image to scale
 * @param w -
 *            desired width
 * @param h -
 *            desired height
 * @return - the new resized image
 */
private Image getScaledImage(Image srcImg, int w, int h) {
    BufferedImage resizedImg = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
    Graphics2D g2 = resizedImg.createGraphics();
    g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
    g2.drawImage(srcImg, 0, 0, w, h, null);
    g2.dispose();
    return resizedImg;
}

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From source file:com.datamyne.charts.FinallyDemo.java

/**
 * Creates PDf file.// w  w w  .java  2 s. co  m
 * @param outputStream {@link OutputStream}.
 * @throws DocumentException
 * @throws IOException
 */
public void create(OutputStream outputStream) throws DocumentException, IOException {
    Document document = null;
    PdfWriter writer = null;

    try {
        //instantiate document and writer
        document = new Document();
        writer = PdfWriter.getInstance(document, outputStream);

        //open document
        document.open();

        //get dummy text
        String text = getText();
        //create text font
        com.itextpdf.text.Font font = new com.itextpdf.text.Font(FontFamily.TIMES_ROMAN, 10.0f);

        //add text before
        document.add(new Paragraph(new Chunk(text, font)));

        //add image
        int width = 300;
        int height = 300;
        JFreeChart chart = getChart();

        //create PdfContentByte
        //if you work with this object, you write to
        //the top most layer, meaning anything behind
        //will be clipped
        PdfContentByte contentByte = writer.getDirectContent();
        //create PdfTemplate from PdfContentByte
        PdfTemplate template = contentByte.createTemplate(width, height);
        //create Graphics2D from PdfTemplate
        Graphics2D g2 = template.createGraphics(width, height, new DefaultFontMapper());
        //setup the drawing area
        Rectangle2D r2D = new Rectangle2D.Double(0, 0, width, height);
        //pass the Graphics2D and drawing area to JFreeChart
        chart.draw(g2, r2D, null);
        g2.dispose(); //always dispose this

        //create Image from PdfTemplate
        Image image = Image.getInstance(template);
        document.add(image);

        //add text after
        document.add(new Paragraph(new Chunk(text, font)));

        //release resources
        document.close();
        document = null;

        writer.close();
        writer = null;
    } catch (DocumentException de) {
        throw de;
    } finally {
        //release resources
        if (null != document) {
            try {
                document.close();
            } catch (Exception ex) {
            }
        }

        if (null != writer) {
            try {
                writer.close();
            } catch (Exception ex) {
            }
        }
    }
}

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From source file:doge.photo.DogePhotoManipulator.java

private void render(BufferedImage sourceImage, BufferedImage destinationImage) {
    Graphics2D destinationGraphics = destinationImage.createGraphics();
    try {/* w ww  .ja va  2  s.  com*/
        setGraphicsHints(destinationGraphics);
        renderBackground(sourceImage, destinationImage, destinationGraphics);
        renderOverlay(destinationImage, destinationGraphics);
    } finally {
        destinationGraphics.dispose();
    }
}

---

From source file:com.funambol.foundation.util.MediaUtils.java

/**
 * Creates the thumbnail.// ww  w .j av a  2  s .c o m
 *
 * @param imageFile the image file
 * @param thumbFile the empty thumbnail file
 * @param thumbX the width of the thumbnail
 * @param thumbY the height of the thumbnail
 * @param imageName the image file name with extension
 * @param tolerance the percentage of tolerance before creating a thumbnail
 * @return true is the thumbnail has been created, false otherwise
 * @throws IOException if an error occurs
 */
private static boolean createThumbnail(File imageFile, File thumbFile, int thumbX, int thumbY, String imageName,
        double tolerance) throws IOException {

    FileInputStream fileis = null;
    ImageInputStream imageis = null;

    Iterator readers = null;

    try {

        readers = ImageIO.getImageReadersByFormatName(imageName.substring(imageName.lastIndexOf('.') + 1));
        if (readers == null || (!readers.hasNext())) {
            throw new IOException("File not supported");
        }

        ImageReader reader = (ImageReader) readers.next();

        fileis = new FileInputStream(imageFile);
        imageis = ImageIO.createImageInputStream(fileis);
        reader.setInput(imageis, true);

        // Determines thumbnail height, width and quality
        int thumbWidth = thumbX;
        int thumbHeight = thumbY;

        double thumbRatio = (double) thumbWidth / (double) thumbHeight;
        int imageWidth = reader.getWidth(0);
        int imageHeight = reader.getHeight(0);

        //
        // Don't create the thumbnail if the original file is smaller
        // than required size increased by % tolerance
        //
        if (imageWidth <= (thumbWidth * (1 + tolerance / 100))
                && imageHeight <= (thumbHeight * (1 + tolerance / 100))) {

            return false;
        }

        double imageRatio = (double) imageWidth / (double) imageHeight;
        if (thumbRatio < imageRatio) {
            thumbHeight = (int) (thumbWidth / imageRatio);
        } else {
            thumbWidth = (int) (thumbHeight * imageRatio);
        }

        ImageReadParam param = reader.getDefaultReadParam();
        param.setSourceSubsampling(3, 3, 0, 0);

        BufferedImage bi = reader.read(0, param);

        Image thumb = bi.getScaledInstance(thumbWidth, thumbHeight, Image.SCALE_SMOOTH);

        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(thumb, 0, 0, thumbWidth, thumbHeight, null);

        FileOutputStream fileOutputStream = new FileOutputStream(thumbFile);
        ImageIO.write(thumbImage, "jpg", fileOutputStream);

        thumb.flush();
        thumbImage.flush();
        fileOutputStream.flush();
        fileOutputStream.close();
        graphics2D.dispose();

    } finally {
        if (fileis != null) {
            fileis.close();
        }
        if (imageis != null) {
            imageis.close();
        }
    }

    return true;
}

---

From source file:net.sf.jasperreports.charts.util.ImageChartRendererFactory.java

@Override
public Renderable getRenderable(JasperReportsContext jasperReportsContext, JFreeChart chart,
        ChartHyperlinkProvider chartHyperlinkProvider, Rectangle2D rectangle) {
    int dpi = JRPropertiesUtil.getInstance(jasperReportsContext)
            .getIntegerProperty(Renderable.PROPERTY_IMAGE_DPI, 72);
    double scale = dpi / 72d;

    BufferedImage bi = new BufferedImage((int) (scale * (int) rectangle.getWidth()),
            (int) (scale * rectangle.getHeight()), BufferedImage.TYPE_INT_ARGB);

    List<JRPrintImageAreaHyperlink> areaHyperlinks = null;

    Graphics2D grx = bi.createGraphics();
    try {/*from w ww  . j  ava  2s.com*/
        grx.scale(scale, scale);

        if (chartHyperlinkProvider != null && chartHyperlinkProvider.hasHyperlinks()) {
            areaHyperlinks = ChartUtil.getImageAreaHyperlinks(chart, chartHyperlinkProvider, grx, rectangle);
        } else {
            chart.draw(grx, rectangle);
        }
    } finally {
        grx.dispose();
    }

    try {
        return new SimpleDataRenderer(
                JRImageLoader.getInstance(jasperReportsContext).loadBytesFromAwtImage(bi, ImageTypeEnum.PNG),
                areaHyperlinks);
    } catch (JRException e) {
        throw new JRRuntimeException(e);
    }
}

---

From source file:com.kahlon.guard.controller.PersonImageManager.java

private BufferedImage resizeImage(BufferedImage originalImage, int type) {
    BufferedImage resizedImage = new BufferedImage(IMG_WIDTH, IMG_HEIGHT, type);
    Graphics2D g = resizedImage.createGraphics();
    g.drawImage(originalImage, 0, 0, IMG_WIDTH, IMG_HEIGHT, null);
    g.dispose();

    return resizedImage;
}

---

From source file:Main.java

public void drawImage() {
    Graphics2D g = img.createGraphics();
    RenderingHints hints = new RenderingHints(RenderingHints.KEY_ANTIALIASING,
            RenderingHints.VALUE_ANTIALIAS_ON);
    g.setRenderingHints(hints);/*  w w w  .  j a  v a  2  s  . c  o m*/

    g.setColor(Color.RED);
    int x = (int) mouse.getX();
    int y = (int) mouse.getY();
    g.setStroke(new BasicStroke(2));
    int s = 3;
    g.drawLine(x - s, y, x + s, y);
    g.drawLine(x, y - s, x, y + s);
    l.setIcon(new ImageIcon(img));

    g.dispose();
}

---

From source file:com.kahlon.guard.controller.PersonImageManager.java

private BufferedImage resizeImageWithHint(BufferedImage originalImage, int type) {

    BufferedImage resizedImage = new BufferedImage(IMG_WIDTH, IMG_HEIGHT, type);
    Graphics2D g = resizedImage.createGraphics();
    g.drawImage(originalImage, 0, 0, IMG_WIDTH, IMG_HEIGHT, null);
    g.dispose();
    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);

    return resizedImage;
}

---

From source file:com.sire.web.CajFacturaEnviadaBean.java

private void savePicture() {
    if (file != null) {
        try {/*from  ww  w . ja v  a 2s .co m*/
            BufferedImage originalImage = ImageIO.read(file.getInputstream());

            BufferedImage outputImage = new BufferedImage((int) (originalImage.getWidth() * 0.25),
                    (int) (originalImage.getHeight() * 0.25), originalImage.getType());

            Graphics2D g2d = outputImage.createGraphics();
            g2d.drawImage(originalImage, 0, 0, (int) (originalImage.getWidth() * 0.25),
                    (int) (originalImage.getHeight() * 0.25), null);
            g2d.dispose();

            String imagesFolder = System.getProperty("imagesFolder");

            if (imagesFolder == null) {
                String currentUsersHomeDir = System.getProperty("user.home");
                imagesFolder = currentUsersHomeDir + File.separator + "photos";
            }

            Iterator iter = ImageIO.getImageWritersByFormatName("jpeg");
            ImageWriter writer = (ImageWriter) iter.next();
            ImageWriteParam iwp = writer.getDefaultWriteParam();

            iwp.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
            float quality = 1.0f; // reduce quality by 0%  
            iwp.setCompressionQuality(quality);

            File f = new File(imagesFolder + File.separator + fileName);
            try (FileImageOutputStream output = new FileImageOutputStream(f)) {
                writer.setOutput(output);

                IIOImage image = new IIOImage(outputImage, null, null);
                writer.write(null, image, iwp);
                writer.dispose();
            }
        } catch (IOException ex) {
            LOGGER.severe(ex.getMessage());
        }
    }
}

---

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