Example usage for java.awt.image BufferedImage getGraphics

Introduction

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

Prototype

public java.awt.Graphics getGraphics() 

Source Link

Document

This method returns a Graphics2D , but is here for backwards compatibility.

Usage

From source file:com.baobao121.baby.common.SimpleUploaderServlet.java

public static void changeDimension(InputStream bis, FileOutputStream desc, int w, int h) throws IOException {
    Image src = javax.imageio.ImageIO.read(bis); // Image
    int width = src.getWidth(null); // ?
    int height = src.getHeight(null); // ?
    if (width <= w && height <= h) {
        BufferedImage tag = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
        tag.getGraphics().drawImage(src, 0, 0, width, height, null); // ??
        JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(desc);
        encoder.encode(tag);//from   ww  w  .j  a  va  2 s  .co m
        desc.flush();
        desc.close();
        bis.close();
    } else {
        if (width != height) {
            if (w * height < h * width) {
                h = (int) (height * w / width);
            } else {
                w = (int) (width * h / height);
            }
        }
        BufferedImage tag = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
        tag.getGraphics().drawImage(src, 0, 0, w, h, null); // ??
        JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(desc);
        encoder.encode(tag);
        desc.flush();
        desc.close();
        bis.close();
    } // JPEG?
}

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From source file:org.polymap.core.data.image.ImageTransparencyProcessor.java

public static BufferedImage transparency(Image image, final Color markerColor) throws IOException {
    long start = System.currentTimeMillis();

    RGBImageFilter filter = new RGBImageFilter() {
        // the color we are looking for... Alpha bits are set to opaque
        public int markerRGB = markerColor.getRGB() | 0xFF000000;

        byte threshold = 25;

        double range = ((double) 0xFF) / (3 * threshold);

        public final int filterRGB(int x, int y, int rgb) {
            Color probe = new Color(rgb);
            //log.info( "probe=" + probe + ", marker=" + markerColor );

            // delta values
            int dRed = markerColor.getRed() - probe.getRed();
            int dGreen = markerColor.getGreen() - probe.getGreen();
            int dBlue = markerColor.getBlue() - probe.getBlue();
            //log.info( "    dRed=" + dRed + ", dGreen=" + dGreen );

            if (dRed >= 0 && dRed < threshold && dGreen >= 0 && dGreen < threshold && dBlue >= 0
                    && dBlue < threshold) {
                int alpha = (int) Math.round(range * (dRed + dGreen + dBlue));
                //log.info( "    -> alpha=" + alpha );

                return ((alpha << 24) | 0x00FFFFFF) & rgb;
            } else {
                // nothing to do
                return rgb;
            }/*from  ww w .  jav a  2 s  .  c o  m*/
        }
    };

    //        BufferedImage bimage = null;
    //        if (image instanceof BufferedImage) {
    //            bimage = (BufferedImage)image;
    //        }
    //        else {
    //            bimage = new BufferedImage(
    //                    image.getHeight( null ), image.getWidth( null ), BufferedImage.TYPE_INT_ARGB );
    //            Graphics g = bimage.getGraphics();
    //            g.drawImage( image, 0, 0, null );
    //            g.dispose();
    //        }

    ImageProducer ip = new FilteredImageSource(image.getSource(), filter);
    Image result = Toolkit.getDefaultToolkit().createImage(ip);

    BufferedImage bresult = new BufferedImage(image.getHeight(null), image.getWidth(null),
            BufferedImage.TYPE_INT_ARGB);
    Graphics g = bresult.getGraphics();
    g.drawImage(result, 0, 0, null);
    g.dispose();

    //        // XXX this can surely be done any more clever
    //        int width = bimage.getWidth();
    //        int height = bimage.getHeight();
    //        for (int x=bimage.getMinX(); x<width; x++) {
    //            for (int y=bimage.getMinY(); y<height; y++) {
    //                int filtered = filter.filterRGB( x, y, bimage.getRGB( x, y ) );
    //                result.setRGB( x, y, filtered );
    //            }
    //        }

    log.debug("Transparency done. (" + (System.currentTimeMillis() - start) + "ms)");
    return bresult;
}

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From source file:net.yacy.cora.util.Html2Image.java

/**
 * render a html page with a JEditorPane, which can do html up to html v 3.2. No CSS supported!
 * @param url/*from  ww w  . j a v  a2  s.c om*/
 * @param size
 * @throws IOException 
 */
public static void writeSwingImage(String url, Dimension size, File destination) throws IOException {

    // set up a pane for rendering
    final JEditorPane htmlPane = new JEditorPane();
    htmlPane.setSize(size);
    htmlPane.setEditable(false);
    final HTMLEditorKit kit = new HTMLEditorKit() {

        private static final long serialVersionUID = 1L;

        @Override
        public Document createDefaultDocument() {
            HTMLDocument doc = (HTMLDocument) super.createDefaultDocument();
            doc.setAsynchronousLoadPriority(-1);
            return doc;
        }

        @Override
        public ViewFactory getViewFactory() {
            return new HTMLFactory() {
                @Override
                public View create(Element elem) {
                    View view = super.create(elem);
                    if (view instanceof ImageView) {
                        ((ImageView) view).setLoadsSynchronously(true);
                    }
                    return view;
                }
            };
        }
    };
    htmlPane.setEditorKitForContentType("text/html", kit);
    htmlPane.setContentType("text/html");
    htmlPane.addPropertyChangeListener(new PropertyChangeListener() {
        @Override
        public void propertyChange(PropertyChangeEvent evt) {
        }
    });

    // load the page
    try {
        htmlPane.setPage(url);
    } catch (IOException e) {
        e.printStackTrace();
    }

    // render the page
    Dimension prefSize = htmlPane.getPreferredSize();
    BufferedImage img = new BufferedImage(prefSize.width, htmlPane.getPreferredSize().height,
            BufferedImage.TYPE_INT_ARGB);
    Graphics graphics = img.getGraphics();
    htmlPane.setSize(prefSize);
    htmlPane.paint(graphics);
    ImageIO.write(img, destination.getName().endsWith("jpg") ? "jpg" : "png", destination);
}

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From source file:com.igormaznitsa.sciareto.ui.UiUtils.java

@Nonnull
public static Image iconToImage(@Nonnull Component context, @Nullable final Icon icon) {
    if (icon instanceof ImageIcon) {
        return ((ImageIcon) icon).getImage();
    }/*from w ww.  ja  va  2  s . c  o  m*/
    final int width = icon == null ? 16 : icon.getIconWidth();
    final int height = icon == null ? 16 : icon.getIconHeight();
    final BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
    if (icon != null) {
        final Graphics g = image.getGraphics();
        try {
            icon.paintIcon(context, g, 0, 0);
        } finally {
            g.dispose();
        }
    }
    return image;
}

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From source file:org.jfree.experimental.swt.SWTUtils.java

/**
 * Converts an AWT image to SWT.//from   w ww. j av  a2s  .  c  o m
 *
 * @param image  the image (<code>null</code> not permitted).
 *
 * @return Image data.
 */
public static ImageData convertAWTImageToSWT(Image image) {
    ParamChecks.nullNotPermitted(image, "image");
    int w = image.getWidth(null);
    int h = image.getHeight(null);
    if (w == -1 || h == -1) {
        return null;
    }
    BufferedImage bi = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
    Graphics g = bi.getGraphics();
    g.drawImage(image, 0, 0, null);
    g.dispose();
    return convertToSWT(bi);
}

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

public static byte[] waterMarkJPG(String baseImagePath, String waterMartPath) {
    try {//from  ww  w.j  a  va2  s. com
        File origFile = new File(baseImagePath);
        ImageIcon icon = new ImageIcon(origFile.getPath());
        BufferedImage bufferedImage = new BufferedImage(icon.getIconWidth(), icon.getIconHeight(),
                BufferedImage.TYPE_INT_RGB);
        Graphics graphics = bufferedImage.getGraphics();
        graphics.drawImage(icon.getImage(), 0, 0, null);

        ImageIcon png = new ImageIcon(waterMartPath);
        graphics.drawImage(png.getImage(), 0, 0, null);

        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        ImageIO.write(bufferedImage, "jpg", baos);
        baos.flush();
        byte[] imageInByte = baos.toByteArray();

        return imageInByte;
    } catch (IOException e) {
        e.printStackTrace();
    }

    return null;
}

---

From source file:net.sf.webphotos.tools.Thumbnail.java

private static Image estampar(Image im) {
    try {/*from   ww  w .  java  2s. c om*/
        Image temp = new ImageIcon(im).getImage();

        BufferedImage buf = new BufferedImage(temp.getWidth(null), temp.getHeight(null),
                BufferedImage.TYPE_INT_RGB);

        Graphics2D g2 = (Graphics2D) buf.getGraphics();

        g2.drawImage(temp, 0, 0, null);
        g2.setBackground(Color.BLUE);

        Dimension dimensaoFoto = new Dimension(im.getWidth(null), im.getHeight(null));

        // aplicar texto
        if (texto != null) {
            Util.out.println("aplicando texto " + texto);

            Font fonte = new Font(txFamilia, txEstilo, txTamanho);
            g2.setFont(fonte);
            FontMetrics fm = g2.getFontMetrics(fonte);
            Dimension dimensaoTexto = new Dimension(fm.stringWidth(texto), fm.getHeight());
            Point posTexto = calculaPosicao(dimensaoFoto, dimensaoTexto, txMargem, txPosicao);

            g2.setPaint(txCorFundo);
            g2.drawString(texto, (int) posTexto.getX() + 1, (int) posTexto.getY() + 1 + fm.getHeight());
            g2.setPaint(txCorFrente);
            g2.drawString(texto, (int) posTexto.getX(), (int) posTexto.getY() + fm.getHeight());
        }

        // aplicar marca dagua
        if (marcadagua != null) {
            Image marca = new ImageIcon(marcadagua).getImage();
            int rule = AlphaComposite.SRC_OVER;
            float alpha = (float) mdTransparencia / 100;
            Point pos = calculaPosicao(dimensaoFoto, new Dimension(marca.getWidth(null), marca.getHeight(null)),
                    mdMargem, mdPosicao);

            g2.setComposite(AlphaComposite.getInstance(rule, alpha));
            g2.drawImage(marca, (int) pos.getX(), (int) pos.getY(), null);
        }

        g2.dispose();
        //return (Image) buf;
        return Toolkit.getDefaultToolkit().createImage(buf.getSource());
    } catch (Exception e) {
        Util.err.println("[Thumbnail.estampar]/ERRO: Inesperado - " + e.getMessage());
        e.printStackTrace(Util.err);
        return im;
    }
}

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

public static void clearImage(BufferedImage image) {
    if (image == null)
        return;//  w w  w. j  av a2 s. c  om

    Graphics2D g = null;
    try {
        g = (Graphics2D) image.getGraphics();
        Composite oldComposite = g.getComposite();
        g.setComposite(AlphaComposite.Clear);
        g.fillRect(0, 0, image.getWidth(), image.getHeight());
        g.setComposite(oldComposite);
    } finally {
        if (g != null) {
            g.dispose();
        }
    }
}

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From source file:de.darkblue.bongloader2.utils.ToolBox.java

public static BufferedImage grayScale(BufferedImage image) {
    BufferedImage newImage = new BufferedImage(image.getWidth(), image.getHeight(),
            BufferedImage.TYPE_BYTE_GRAY);
    Graphics g = newImage.getGraphics();
    g.drawImage(image, 0, 0, null);/*w ww  . j  a  v a  2s .  c om*/
    g.dispose();

    return newImage;
}

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

public static void clearImage(BufferedImage image) {

    if (image == null) {
        return;//from  ww  w .j  a va 2  s .  co m
    }

    Graphics2D g = null;
    try {

        g = (Graphics2D) image.getGraphics();
        Composite oldComposite = g.getComposite();

        g.setComposite(AlphaComposite.Clear);

        g.fillRect(0, 0, image.getWidth(), image.getHeight());

        g.setComposite(oldComposite);
    } finally {
        if (g != null) {
            g.dispose();
        }
    }
}

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