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.funambol.foundation.util.MediaUtils.java

/**
 * Rotates given buffered image by given amount of degree.
 * The valid degree values are 0, 90, 180, 270.
 * If the image is a jpg, the rotation is lossless, exif data are preserved
 * and image size is almost the same./*w  ww.  j a  v  a  2s .co  m*/
 *
 * @param bufImage the buffered image
 * @param degree amount of degree to apply
 * @return a buffered image containing rotated image data
 * @throws PicturesException if amount of degree is invalid or if an
 *         IOException occurs
 */
private static BufferedImage rotateImage(BufferedImage bufImage, int degree)
        throws FileDataObjecyUtilsException {

    degree = degree % 360;
    int h;
    int w;

    switch (degree) {
    case 0:
    case 180:
        h = bufImage.getHeight();
        w = bufImage.getWidth();
        break;
    case 90:
    case 270:
        h = bufImage.getWidth();
        w = bufImage.getHeight();
        break;
    default:
        throw new FileDataObjecyUtilsException(
                "Error rotating image since the '" + degree + "' degree value is unsupported");
    }

    BufferedImage out = null;

    int bufImageType = bufImage.getType();
    if (BufferedImage.TYPE_BYTE_INDEXED == bufImageType || BufferedImage.TYPE_BYTE_BINARY == bufImageType) {

        IndexColorModel model = (IndexColorModel) bufImage.getColorModel();
        out = new BufferedImage(w, h, bufImage.getType(), model);

    } else if (BufferedImage.TYPE_CUSTOM == bufImageType) {

        // we don't know what type of image it can be

        // there's a bug in some VM that cause some PNG images to have 
        // type custom: this should take care of this issue

        //check if we need to have alpha channel
        boolean alpha = bufImage.getTransparency() != BufferedImage.OPAQUE;

        if (alpha) {
            // TYPE_INT_ARGB_PRE gives you smaller output images
            // than TYPE_INT_ARGB
            out = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB_PRE);
        } else {
            out = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
        }

    } else {

        out = new BufferedImage(w, h, bufImage.getType());
    }

    Graphics2D g2d = out.createGraphics();

    Map renderingHints = new HashMap();

    renderingHints.put(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
    renderingHints.put(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);

    g2d.setRenderingHints(renderingHints);
    g2d.rotate(Math.toRadians(degree));

    switch (degree) {
    case 90:
        g2d.translate(0, -w);
        break;
    case 180:
        g2d.translate(-w, -h);
        break;
    case 270:
        g2d.translate(-h, 0);
        break;
    }

    g2d.drawImage(bufImage, null, 0, 0);
    g2d.dispose();

    return out;
}

---

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);//ww  w .  j  a  v  a2 s . c  o m

    g.setStroke(new BasicStroke(4));
    for (Ellipse2D shape : shapes) {
        g.setColor(Color.blue);
        g.fill(shape);
        if (shape.contains(mouse)) {
            g.setColor(Color.RED);
        } else {
            g.setColor(Color.YELLOW);
        }
        g.draw(shape);
    }

    l.setIcon(new ImageIcon(img));

    g.dispose();
}

---

From source file:com.sketchy.image.ImageProcessingThread.java

public static BufferedImage resizeImage(BufferedImage image, int drawingWidth, int drawingHeight,
        CenterOption centerOption, ScaleOption scaleOption) {

    int imageWidth = image.getWidth();
    int imageHeight = image.getHeight();

    double widthScale = drawingWidth / (double) imageWidth;
    double heightScale = drawingHeight / (double) imageHeight;
    double scale = Math.min(widthScale, heightScale);

    int scaleWidth = (int) (imageWidth * scale);
    int scaleHeight = (int) (imageHeight * scale);

    BufferedImage resizedImage = new BufferedImage(scaleWidth, scaleHeight, BufferedImage.TYPE_INT_ARGB);
    Graphics2D g = resizedImage.createGraphics();

    if (scaleOption == ScaleOption.SCALE_AREA_AVERAGING) {
        ImageProducer prod = new FilteredImageSource(image.getSource(),
                new AreaAveragingScaleFilter(scaleWidth, scaleHeight));
        Image img = Toolkit.getDefaultToolkit().createImage(prod);
        g.drawImage(img, 0, 0, scaleWidth, scaleHeight, null); // it's already scaled
    } else {/* w  w w.  j  a  va 2s .c  om*/
        if (scaleOption == ScaleOption.SCALE_NEAREST_NEIGHBOR) {
            g.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
                    RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR);
        } else if (scaleOption == ScaleOption.SCALE_BICUBIC) {
            g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
        } else if (scaleOption == ScaleOption.SCALE_BILINEAR) {
            g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
        }
        g.drawImage(image, 0, 0, scaleWidth, scaleHeight, 0, 0, imageWidth, imageHeight, null);
    }
    g.dispose();

    int cropWidth = (int) Math.min(scaleWidth, drawingWidth);
    int cropHeight = (int) Math.min(scaleHeight, drawingHeight);

    int drawingLeft = 0;
    int drawingTop = 0;
    if ((centerOption == CenterOption.CENTER_HORIZONTAL) || (centerOption == CenterOption.CENTER_BOTH)) {
        drawingLeft = (int) ((drawingWidth - cropWidth) / 2.0);
    }
    if ((centerOption == CenterOption.CENTER_VERTICAL) || (centerOption == CenterOption.CENTER_BOTH)) {
        drawingTop = (int) ((drawingHeight - cropHeight) / 2.0);
    }

    BufferedImage croppedImage = resizedImage.getSubimage(0, 0, cropWidth, cropHeight);
    resizedImage = null;

    BufferedImage drawingImage = new BufferedImage(drawingWidth, drawingHeight, BufferedImage.TYPE_INT_ARGB);
    g = drawingImage.createGraphics();
    g.drawImage(croppedImage, drawingLeft, drawingTop, drawingLeft + cropWidth, drawingTop + cropHeight, 0, 0,
            cropWidth, cropHeight, null);
    g.dispose();

    croppedImage = null;
    return drawingImage;
}

---

From source file:krasa.cpu.CpuUsagePanel.java

/**
 * it will probably be better synchronized, not sure
 *//* w ww .  j av  a2 s . c o m*/
private synchronized void draw(Graphics g, Image bufferedImage) {
    UIUtil.drawImage(g, bufferedImage, 0, 0, null);
    if (UIUtil.isJreHiDPI((Graphics2D) g) && !UIUtil.isUnderDarcula()) {
        Graphics2D g2 = (Graphics2D) g.create(0, 0, getWidth(), getHeight());
        float s = JBUI.sysScale(g2);
        g2.scale(1 / s, 1 / s);
        g2.setColor(UIUtil.isUnderIntelliJLaF() ? Gray.xC9 : Gray.x91);
        g2.drawLine(0, 0, (int) (s * getWidth()), 0);
        g2.scale(1, 1);
        g2.dispose();
    }
}

---

From source file:edu.umn.cs.spatialHadoop.nasa.MultiHDFPlot.java

/**
 * Draws a scale used with the heat map/*from   www  .  j a va2 s.  co  m*/
 * @param output
 * @param valueRange
 * @param width
 * @param height
 * @throws IOException
 */
private static void drawVerticalScale(Path output, double min, double max, int width, int height,
        OperationsParams params) throws IOException {
    BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
    Graphics2D g = image.createGraphics();
    g.setBackground(Color.BLACK);
    g.clearRect(0, 0, width, height);

    // fix this part to work according to color1, color2 and gradient type
    HDFPlot.HDFRasterizer gradient = new HDFPlot.HDFRasterizer();
    gradient.configure(params);
    HDFRasterLayer gradientLayer = (HDFRasterLayer) gradient.createCanvas(0, 0, new Rectangle());
    for (int y = 0; y < height; y++) {
        Color color = gradientLayer.calculateColor(height - y, 0, height);
        g.setColor(color);
        g.drawRect(width * 3 / 4, y, width / 4, 1);
    }

    int fontSize = 24;
    g.setFont(new Font("Arial", Font.BOLD, fontSize));
    double step = (max - min) * fontSize * 5 / height;
    step = (int) (Math.pow(10.0, Math.round(Math.log10(step))));
    double min_value = Math.floor(min / step) * step;
    double max_value = Math.floor(max / step) * step;

    g.setColor(Color.WHITE);
    for (double value = min_value; value <= max_value; value += step) {
        double y = ((value - min) + (max - value) * (height - fontSize)) / (max - min);
        g.drawString(String.valueOf((int) value), 5, (int) y);
    }

    g.dispose();

    FileSystem fs = output.getFileSystem(new Configuration());
    FSDataOutputStream outStream = fs.create(output, true);
    ImageIO.write(image, "png", outStream);
    outStream.close();
}

---

From source file:edu.umn.cs.spatialHadoop.nasa.MultiHDFPlot.java

/**
 * Draws a scale used with the heat map/*from w  ww  .  jav  a 2s  .com*/
 * @param output
 * @param valueRange
 * @param width
 * @param height
 * @throws IOException
 */
private static void drawHorizontalScale(Path output, double min, double max, int width, int height,
        OperationsParams params) throws IOException {
    BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
    Graphics2D g = image.createGraphics();
    g.setBackground(Color.BLACK);
    g.clearRect(0, 0, width, height);

    int fontSize = 24;
    // fix this part to work according to color1, color2 and gradient type
    HDFPlot.HDFRasterizer gradient = new HDFPlot.HDFRasterizer();
    gradient.configure(params);
    HDFRasterLayer gradientLayer = (HDFRasterLayer) gradient.createCanvas(0, 0, new Rectangle());
    for (int x = 0; x < width; x++) {
        Color color = gradientLayer.calculateColor(x, 0, width);
        g.setColor(color);
        g.drawRect(x, height - (fontSize - 5), 1, fontSize - 5);
    }

    g.setFont(new Font("Arial", Font.BOLD, fontSize));
    double step = (max - min) * fontSize * 5 / width;
    step = (int) (Math.pow(10.0, Math.round(Math.log10(step))));
    double min_value = Math.floor(min / step) * step;
    double max_value = Math.floor(max / step) * step;

    g.setColor(Color.WHITE);
    for (double value = min_value; value <= max_value; value += step) {
        double x = ((value - min) * (width - fontSize) + (max - value)) / (max - min);
        g.drawString(String.valueOf((int) value), (int) x, fontSize);
    }

    g.dispose();

    FileSystem fs = output.getFileSystem(new Configuration());
    FSDataOutputStream outStream = fs.create(output, true);
    ImageIO.write(image, "png", outStream);
    outStream.close();
}

---

From source file:com.skcraft.launcher.swing.InstanceTableModel.java

private ImageIcon buildDownloadIcon(BufferedImage instanceIcon) {
    try {//www. j  a  va 2s. c o m
        BufferedImage iconBg = instanceIcon;
        BufferedImage iconFg = ImageIO.read(Launcher.class.getResource("download_icon_overlay.png"));
        BufferedImage iconCombined = new BufferedImage(iconBg.getWidth(), iconBg.getHeight(),
                BufferedImage.TYPE_INT_ARGB);
        Graphics2D canvas = iconCombined.createGraphics();
        canvas.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.5f));
        canvas.drawImage(iconBg, 0, 0, null);
        canvas.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 1.0f));
        canvas.drawImage(iconFg, iconBg.getWidth() - iconFg.getWidth(), iconBg.getHeight() - iconFg.getHeight(),
                null);
        canvas.dispose();
        return new ImageIcon(iconCombined);
    } catch (IOException e) {
        e.printStackTrace();
    }
    return null;
}

---

From source file:org.deegree.test.gui.StressTestController.java

private void renderResizedImage(HttpServletResponse response, String shot, int width, int height)
        throws IOException {
    BufferedImage originalImage = ImageIO.read(new File(shot));

    BufferedImage scaledImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
    Graphics2D graphics = scaledImage.createGraphics();
    graphics.setComposite(AlphaComposite.Src);
    graphics.drawImage(originalImage, 0, 0, width, height, null);
    graphics.dispose();

    response.setContentType("image/jpeg");
    OutputStream out = response.getOutputStream();
    ImageIO.write(scaledImage, "jpg", out);
    out.close();/*from  w  w  w. j a  v  a2  s  . c o m*/

}

---

From source file:Servlet3.java

@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    try {//ww  w  .  j av  a2  s  .  co m
        System.out.println("inside servlet");
        String a = request.getParameter("countryf");
        String c = request.getParameter("submit");
        String b = request.getParameter("paramf");

        String CurentUID = request.getParameter("UIDvalue2f");
        String URLRequest = request.getRequestURL().append('?').append(request.getQueryString()).toString();
        Calendar cal = Calendar.getInstance();
        cal.add(Calendar.DATE, 1);
        SimpleDateFormat format1 = new SimpleDateFormat("EEE MMM dd hh:mm:ss yyyy");
        String date1 = cal.getTime().toString();

        System.out.println("inside servlet");

        Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
        Connection con = DriverManager.getConnection("jdbc:odbc:server");

        // To Insert data to UserActivity table for Recent Activities Tab
        Statement sthistoryinsert3 = con.createStatement();
        String insertstring = "Insert into UserActivity values('" + CurentUID + "','" + date1
                + "','Future Data Forecast','" + a + "','" + b + "','" + URLRequest + "')";
        sthistoryinsert3.executeUpdate(insertstring);
        sthistoryinsert3.close();
        System.out.println("\n Step 1");
        Statement st = con.createStatement();
        XYSeriesCollection dataset = new XYSeriesCollection();
        XYSeries series = new XYSeries(b);

        String query = "SELECT [2000],[2012] FROM country where CountryName='" + a + "' AND SeriesName='" + b
                + "'";
        System.out.println(query);
        ResultSet rs = st.executeQuery(query);
        if (rs == null)
            System.out.println("\n no rows ");
        else
            System.out.println("Rows present ");
        rs.next();

        Double start = Double.parseDouble(rs.getString(1));
        Double end = Double.parseDouble(rs.getString(2));
        Double period = 13.0;
        Double growth = Math.pow((end / start), (1 / period)) - 1;
        System.out.println("growth percentage =" + growth);
        rs.close();
        String query2 = "select [2011],[2012] from country where CountryName='" + a + "' AND SeriesName='" + b
                + "'";
        rs = st.executeQuery(query2);
        rs.next();
        series.add(2011, Double.parseDouble(rs.getString(1)));
        Double second = Double.parseDouble(rs.getString(2));
        series.add(2012, second);

        Double growthvalue = second + (second * growth);

        series.add(2013, growthvalue);
        for (int i = 2014; i <= 2016; i++) {
            System.out.println("actual growth value = " + growthvalue);
            series.add((i++), (growthvalue + growthvalue * growth));
            growthvalue = growthvalue + growthvalue * growth;
        }
        rs.close();
        dataset.addSeries(series);
        DecimalFormat format_2Places = new DecimalFormat("0.00");
        growth = growth * 100;
        growth = Double.valueOf(format_2Places.format(growth));
        JFreeChart chart = ChartFactory.createXYLineChart(
                "Energy forecasting for " + a + " based on " + b + " with growth value estimated at " + growth
                        + "% ",
                "Year", "Energy consumed in millions", dataset, PlotOrientation.VERTICAL, true, true, false);
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        chart.setBackgroundPaint(Color.white);
        final XYPlot plot = chart.getXYPlot();
        plot.setBackgroundPaint(Color.white);
        plot.setDomainGridlinesVisible(true);
        plot.setRangeGridlinesVisible(true);
        plot.setDomainGridlinePaint(Color.black);
        plot.setRangeGridlinePaint(Color.black);

        final XYLineAndShapeRenderer renderer = new XYLineAndShapeRenderer();
        renderer.setSeriesLinesVisible(2, false);
        renderer.setSeriesShapesVisible(2, false);
        plot.setRenderer(renderer);
        // To insert colored Pie Chart into the PDF file using
        // iText now   
        if (c.equals("View Graph in Browser")) {
            ChartUtilities.writeChartAsPNG(bos, chart, 700, 500);
            response.setContentType("image/png");
            OutputStream out = new BufferedOutputStream(response.getOutputStream());
            out.write(bos.toByteArray());
            out.flush();
            out.close();
        }

        else {
            int width = 640; /* Width of our chart */
            int height = 480; /* Height of our chart */
            Document PieChart = new Document(new com.itextpdf.text.Rectangle(width, height));
            java.util.Date date = new java.util.Date();
            String chartname = "My_Colored_Chart" + date.getTime() + ".pdf";
            PdfWriter writer = PdfWriter.getInstance(PieChart, new FileOutputStream(chartname));
            PieChart.open();

            PieChart.addTitle("Pie-Chart");
            PieChart.addAuthor("MUurugappan");

            PdfContentByte Add_Chart_Content = writer.getDirectContent();
            PdfTemplate template_Chart_Holder = Add_Chart_Content.createTemplate(width, height);
            Graphics2D Graphics_Chart = template_Chart_Holder.createGraphics(width, height,
                    new DefaultFontMapper());
            Rectangle2D Chart_Region = new Rectangle2D.Double(0, 0, 540, 380);
            chart.draw(Graphics_Chart, Chart_Region);
            Graphics_Chart.dispose();
            Add_Chart_Content.addTemplate(template_Chart_Holder, 0, 0);
            PieChart.close();

            PdfReader reader = new PdfReader(chartname);
            PdfStamper stamper = null;
            try {
                stamper = new PdfStamper(reader, bos);
            } catch (DocumentException e) {
                e.printStackTrace();
            }
            try {
                stamper.close();
            } catch (DocumentException e) {

                e.printStackTrace();
            }

            // set response headers to view PDF
            response.setHeader("Expires", "0");
            response.setHeader("Cache-Control", "must-revalidate, post-check=0, pre-check=0");
            response.setHeader("Pragma", "public");
            response.setContentType("application/pdf");
            response.setContentLength(bos.size());

            OutputStream os = response.getOutputStream();
            bos.writeTo(os);
            os.flush();
            os.close();
        }
    }

    catch (Exception i) {
        i.printStackTrace();
    }

}

---

From source file:common.utils.ImageUtils.java

/**
 *
 * @param src images to draw, they must be resized to an appropriate size
 * @param dst image where given images will be drawen
 *//*from w  w  w .j  a va 2s .c o m*/
public static void draw4on1(BufferedImage[] src, BufferedImage dst) {
    Graphics2D g2 = dst.createGraphics();
    g2.setColor(java.awt.Color.WHITE);
    g2.fillRect(0, 0, dst.getWidth(), dst.getHeight());
    int dxi;
    int dyi = 0;

    int x0 = dst.getWidth() - 5;
    int y0 = 5;
    int x = x0;
    int y = y0;
    for (int i = 0; i < src.length; i++) {
        if (i % 2 == 0) {
            dxi = -10;
        } else {
            dxi = 0;
        }
        //g2.draw3DRect(dx - 1 , dy-tmp_bi.getHeight() - 1, tmp_bi.getWidth() + 1 , tmp_bi.getHeight() + 1, true);
        g2.drawImage(src[i], x - src[i].getWidth() + dxi, y + dyi, null);
        g2.drawString("#" + i, x - src[i].getWidth() + dxi, y + dyi + 20);
        //g2.rotate(Math.toRadians(4));
        y = y + src[i].getHeight() / 2;
        if (y > dst.getHeight() - src[i].getHeight()) {
            y = y0;
            if (dyi == 0)
                dyi = 10;
            else
                dyi = 0;
            if (x < src[i].getWidth()) {
                x = dst.getWidth();
            }
            x = x - src[i].getWidth() / 2;
        }
    }
    g2.setColor(Color.gray);
    g2.drawRect(0, 0, dst.getWidth() - 1, dst.getHeight() - 1);
    g2.dispose();
}

---

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