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:be.fedict.eid.idp.sp.PhotoServlet.java

@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    LOG.debug("doGet");
    response.setContentType("image/jpg");
    response.setHeader("Cache-Control", "no-cache, no-store, must-revalidate, max-age=-1"); // http 1.1
    response.setHeader("Pragma", "no-cache, no-store"); // http 1.0
    response.setDateHeader("Expires", -1);
    ServletOutputStream out = response.getOutputStream();
    HttpSession session = request.getSession();

    byte[] photoData = (byte[]) session.getAttribute(PHOTO_SESSION_ATTRIBUTE);

    if (null != photoData) {
        BufferedImage photo = ImageIO.read(new ByteArrayInputStream(photoData));
        if (null == photo) {
            /*//from  w ww. j  a va  2s .  co m
             * In this case we render a photo containing some error message.
             */
            photo = new BufferedImage(140, 200, BufferedImage.TYPE_INT_RGB);
            Graphics2D graphics = (Graphics2D) photo.getGraphics();
            RenderingHints renderingHints = new RenderingHints(RenderingHints.KEY_TEXT_ANTIALIASING,
                    RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
            graphics.setRenderingHints(renderingHints);
            graphics.setColor(Color.WHITE);
            graphics.fillRect(1, 1, 140 - 1 - 1, 200 - 1 - 1);
            graphics.setColor(Color.RED);
            graphics.setFont(new Font("Dialog", Font.BOLD, 20));
            graphics.drawString("Photo Error", 0, 200 / 2);
            graphics.dispose();
            ImageIO.write(photo, "jpg", out);
        } else {
            out.write(photoData);
        }
    }
    out.close();
}

---

From source file:be.fedict.eid.applet.service.PhotoServlet.java

@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    LOG.debug("doGet");
    response.setContentType("image/jpg");
    response.setHeader("Cache-Control", "no-cache, no-store, must-revalidate, max-age=-1"); // http 1.1
    response.setHeader("Pragma", "no-cache, no-store"); // http 1.0
    response.setDateHeader("Expires", -1);
    ServletOutputStream out = response.getOutputStream();
    HttpSession session = request.getSession();
    byte[] photoData = (byte[]) session.getAttribute(IdentityDataMessageHandler.PHOTO_SESSION_ATTRIBUTE);
    if (null != photoData) {
        BufferedImage photo = ImageIO.read(new ByteArrayInputStream(photoData));
        if (null == photo) {
            /*//from   w w  w  . j a  v  a  2s .  com
             * In this case we render a photo containing some error message.
             */
            photo = new BufferedImage(140, 200, BufferedImage.TYPE_INT_RGB);
            Graphics2D graphics = (Graphics2D) photo.getGraphics();
            RenderingHints renderingHints = new RenderingHints(RenderingHints.KEY_TEXT_ANTIALIASING,
                    RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
            graphics.setRenderingHints(renderingHints);
            graphics.setColor(Color.WHITE);
            graphics.fillRect(1, 1, 140 - 1 - 1, 200 - 1 - 1);
            graphics.setColor(Color.RED);
            graphics.setFont(new Font("Dialog", Font.BOLD, 20));
            graphics.drawString("Photo Error", 0, 200 / 2);
            graphics.dispose();
            ImageIO.write(photo, "jpg", out);
        } else {
            out.write(photoData);
        }
    }
    out.close();
}

---

From source file:edu.gcsc.vrl.jfreechart.JFExport.java

/**
 * Export jfreechart to image format. File must have an extension like jpg,
 * png, pdf, svg, eps. Otherwise export will fail.
 *
 * @param file Destination Filedescriptor
 * @param chart JFreechart/*from   w w  w  . j  a  v  a 2s  .c o m*/
 * @throws Exception
 */
public boolean export(File file, JFreeChart chart) throws Exception {

    /*Get extension from file - File must have one extension of
     jpg,png,pdf,svg,eps. Otherwise the export will fail.
     */
    String ext = JFUtils.getExtension(file);

    //  TODO - Make x,y variable
    int x, y;
    // Set size for image (jpg)
    x = 550;
    y = 470;

    int found = 0;

    // JPEG
    if (ext.equalsIgnoreCase("jpg")) {
        ChartUtilities.saveChartAsJPEG(file, chart, x, y);
        found++;
    }
    // PNG
    if (ext.equalsIgnoreCase("png")) {
        ChartUtilities.saveChartAsPNG(file, chart, x, y);
        found++;
    }

    // PDF
    if (ext.equalsIgnoreCase("pdf")) {

        //JRAbstractRenderer jfcRenderer = new JFreeChartRenderer(chart);
        // Use here size of r2d2 (see below, Rectangel replaced by Rectangle2D !)
        Rectangle pagesize = new Rectangle(x, y);

        Document document = new Document(pagesize, 50, 50, 50, 50);
        PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(file));
        document.open();
        PdfContentByte cb = writer.getDirectContent();
        PdfTemplate tp = cb.createTemplate(x, y);

        Graphics2D g2 = tp.createGraphics(x, y, new DefaultFontMapper());

        // Draw doesn't works with Rectangle argument - use rectangle2D instead !
        //chart.draw(g2, (java.awt.geom.Rectangle2D) new Rectangle(x,y));
        Rectangle2D r2d2 = new Rectangle2D.Double(0, 0, x, y);
        chart.draw(g2, r2d2);

        g2.dispose();
        cb.addTemplate(tp, 0, 0);
        document.close();

        found++;

    }

    // SVG
    if (ext.equalsIgnoreCase("svg")) {
        // When exporting to SVG don't forget this VERY important line:
        // svgGenerator.setSVGCanvasSize(new Dimension(width, height));
        // Otherwise renderers will not know the size of the image. It will be drawn to the correct rectangle, but the image will not have a correct default siz
        // Get a DOMImplementation
        DOMImplementation domImpl = SVGDOMImplementation.getDOMImplementation();
        org.w3c.dom.Document document = domImpl.createDocument(null, "svg", null);
        SVGGraphics2D svgGenerator = new SVGGraphics2D(document);
        //chart.draw(svgGenerator,new Rectangle(x,y));
        chart.draw(svgGenerator, new Rectangle2D.Double(0, 0, x, y));

        boolean useCSS = true; // we want to use CSS style attribute

        Writer out = new OutputStreamWriter(new FileOutputStream(file), "UTF-8");
        svgGenerator.stream(out, useCSS);
        out.close();
        found++;
    }

    if (ext.equalsIgnoreCase("eps")) {

        //Graphics2D g = new EpsGraphics2D();
        FileOutputStream out = new FileOutputStream(file);
        //Writer out=new FileWriter(file);
        Graphics2D g = new EpsGraphics(file.getName(), out, 0, 0, x, y, ColorMode.COLOR_RGB);

        chart.draw(g, new Rectangle2D.Double(0, 0, x, y));
        //Writer out=new FileWriter(file);
        out.write(g.toString().getBytes());
        out.close();
        found++;
    }

    if (found == 0) {
        throw new IllegalArgumentException("File format '" + ext + "' not supported!");
    }

    return true;

}

---

From source file:org.shredzone.commons.captcha.impl.DefaultCaptchaGenerator.java

@Override
public BufferedImage createCaptcha(char[] text) {
    if (text == null || text.length == 0) {
        throw new IllegalArgumentException("No captcha text given");
    }// ww  w.j a  v  a  2s  .c om

    BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
    Graphics2D g2d = image.createGraphics();
    g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    g2d.setBackground(Color.WHITE);
    g2d.setColor(Color.BLACK);

    clearCanvas(g2d);

    if (showGrid) {
        drawGrid(g2d);
    }

    int charMaxWidth = width / text.length;
    int xPos = 0;
    for (char ch : text) {
        drawCharacter(g2d, ch, xPos, charMaxWidth);
        xPos += charMaxWidth;
    }

    g2d.dispose();
    return image;
}

---

From source file:PSDReader.java

/**
 * Gets the image contents of frame n. Note that this expands the image to the
 * full frame size (if the layer was smaller) and any subsequent use of
 * getLayer() will return the full image.
 * /*www .j a  va  2 s .  c  o  m*/
 * @return BufferedImage representation of frame, or null if n is invalid.
 */
public BufferedImage getFrame(int n) {
    BufferedImage im = null;
    if ((n >= 0) && (n < nLayers)) {
        im = frames[n];
        LayerInfo info = layers[n];
        if ((info.w != width) || (info.h != height)) {
            BufferedImage temp = new BufferedImage(width, height, ImageType);
            Graphics2D gc = temp.createGraphics();
            gc.drawImage(im, info.x, info.y, null);
            gc.dispose();
            im = temp;
            frames[n] = im;
        }
    }
    return im;
}

---

From source file:SimpleAttributes.java

public void paintComponent(Graphics g) {
    Graphics2D g2d = (Graphics2D) g.create();
    g2d.setBackground(Color.GRAY);
    g2d.clearRect(0, 0, getWidth(), getHeight());

    // String and line with default attributes
    g2d.drawString("Default Font", 10, 20);
    g2d.drawLine(10, 22, 80, 22);/*from  ww w  .  j  av  a 2s. co  m*/

    // Change the font, foreground color, and Stroke
    g2d.setFont(g.getFont().deriveFont(Font.BOLD | Font.ITALIC, 24f));
    g2d.setColor(Color.WHITE);
    g2d.setStroke(new BasicStroke(10f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_MITER));

    // String and line with new attributes
    g2d.drawString("New Font", 10, 50);
    g2d.drawLine(10, 57, 120, 57);
    g2d.dispose();
}

---

From source file:eu.udig.style.advanced.utils.Utilities.java

/**
 * Creates an image from a set of {@link RuleWrapper}s.
 * //from   w ww .j a v a 2  s  . c  o  m
 * @param rulesWrapperList the list of rules wrapper.
 * @param width the image width.
 * @param height the image height.
 * @return the new created {@link BufferedImage}.
 */
public static BufferedImage lineRulesWrapperToImage(final List<RuleWrapper> rulesWrapperList, int width,
        int height) {
    BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
    Graphics2D g2d = image.createGraphics();
    g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    for (RuleWrapper rule : rulesWrapperList) {
        BufferedImage tmpImage = Utilities.lineRuleWrapperToImage(rule, width, height);
        g2d.drawImage(tmpImage, 0, 0, null);
    }
    g2d.dispose();
    return image;
}

---

From source file:eu.udig.style.advanced.utils.Utilities.java

/**
 * Creates an image from a set of {@link RuleWrapper}s.
 * //from w  ww  .j av  a 2  s. co  m
 * @param rulesWrapperList the list of rules wrapper.
 * @param width the image width.
 * @param height the image height.
 * @return the new created {@link BufferedImage}.
 */
public static BufferedImage polygonRulesWrapperToImage(final List<RuleWrapper> rulesWrapperList, int width,
        int height) {
    BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
    Graphics2D g2d = image.createGraphics();
    g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    for (RuleWrapper rule : rulesWrapperList) {
        BufferedImage tmpImage = Utilities.polygonRuleWrapperToImage(rule, width, height);
        g2d.drawImage(tmpImage, 0, 0, null);
    }
    g2d.dispose();
    return image;
}

---

From source file:editeurpanovisu.ReadWriteImage.java

/**
 *
 * @param img//from w  ww  .java 2  s  . c o m
 * @param destFile
 * @param quality
 * @param sharpen
 * @param sharpenLevel
 * @throws IOException
 */
public static void writeJpeg(Image img, String destFile, float quality, boolean sharpen, float sharpenLevel)
        throws IOException {
    sharpenMatrix = calculeSharpenMatrix(sharpenLevel);
    BufferedImage imageRGBSharpen = null;
    IIOImage iioImage = null;
    BufferedImage image = SwingFXUtils.fromFXImage(img, null); // Get buffered image.

    BufferedImage imageRGB = new BufferedImage(image.getWidth(), image.getHeight(), BufferedImage.OPAQUE); // Remove alpha-channel from buffered image.

    Graphics2D graphics = imageRGB.createGraphics();
    graphics.drawImage(image, 0, 0, null);
    if (sharpen) {
        imageRGBSharpen = new BufferedImage(image.getWidth(), image.getHeight(), BufferedImage.TYPE_INT_RGB);
        Kernel kernel = new Kernel(3, 3, sharpenMatrix);
        ConvolveOp cop = new ConvolveOp(kernel, ConvolveOp.EDGE_NO_OP, null);
        cop.filter(imageRGB, imageRGBSharpen);
    }
    ImageWriter writer = null;
    FileImageOutputStream output = null;
    try {
        writer = ImageIO.getImageWritersByFormatName("jpeg").next();
        ImageWriteParam param = writer.getDefaultWriteParam();
        param.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
        param.setCompressionQuality(quality);
        output = new FileImageOutputStream(new File(destFile));
        writer.setOutput(output);
        if (sharpen) {
            iioImage = new IIOImage(imageRGBSharpen, null, null);
        } else {
            iioImage = new IIOImage(imageRGB, null, null);
        }
        writer.write(null, iioImage, param);
    } catch (IOException ex) {
        throw ex;
    } finally {
        if (writer != null) {
            writer.dispose();
        }
        if (output != null) {
            output.close();
        }
    }
    graphics.dispose();
}

---

From source file:de.tuttas.restful.SchuelerManager.java

private BufferedImage createResizedCopy(Image originalImage, int scaledWidth, int scaledHeight,
        boolean preserveAlpha) {
    int imageType = preserveAlpha ? BufferedImage.TYPE_INT_RGB : BufferedImage.TYPE_INT_ARGB;
    BufferedImage scaledBI = new BufferedImage(scaledWidth, scaledHeight, imageType);
    Graphics2D g = scaledBI.createGraphics();
    if (preserveAlpha) {
        g.setComposite(AlphaComposite.Src);
    }/*from w  ww .jav a2 s  . com*/
    g.drawImage(originalImage, 0, 0, scaledWidth, scaledHeight, null);
    g.dispose();
    return scaledBI;
}

---

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