Example usage for java.awt.image BufferedImage createGraphics

Introduction

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

Prototype

public Graphics2D createGraphics() 

Source Link

Document

Creates a Graphics2D , which can be used to draw into this BufferedImage .

Usage

From source file:Main.java

public void paint(Graphics g) {
    BufferedImage bim;

    TexturePaint tp;/* w w w  .  j a  v  a  2  s .  c  om*/

    String mesg = "www.java2s.com";

    Font myFont = new Font("Lucida Regular", Font.BOLD, 72);

    Color[] colors = { Color.red, Color.blue, Color.yellow, };

    int width = 8, height = 8;
    bim = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
    Graphics2D g2 = bim.createGraphics();
    for (int i = 0; i < width; i++) {
        g2.setPaint(colors[(i / 2) % colors.length]);
        g2.drawLine(0, i, i, 0);
        g2.drawLine(width - i, height, width, height - i);
    }
    Rectangle r = new Rectangle(0, 0, bim.getWidth(), bim.getHeight());
    tp = new TexturePaint(bim, r);
    System.out.println(tp.getTransparency());

    Graphics2D g2d = (Graphics2D) g;
    g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    g2d.setPaint(tp);
    g2d.setFont(myFont);
    g2d.drawString(mesg, 20, 100);
}

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From source file:Main.java

public void paint(Graphics g) {
    BufferedImage bim;

    TexturePaint tp;/*from  ww w  .  jav a 2s .  c o  m*/

    String mesg = "www.java2s.com";

    Font myFont = new Font("Lucida Regular", Font.BOLD, 72);

    Color[] colors = { Color.red, Color.blue, Color.yellow, };

    int width = 8, height = 8;
    bim = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
    Graphics2D g2 = bim.createGraphics();
    for (int i = 0; i < width; i++) {
        g2.setPaint(colors[(i / 2) % colors.length]);
        g2.drawLine(0, i, i, 0);
        g2.drawLine(width - i, height, width, height - i);
    }
    Rectangle r = new Rectangle(0, 0, bim.getWidth(), bim.getHeight());
    tp = new TexturePaint(bim, r);
    tp.createContext(ColorModel.getRGBdefault(), new Rectangle(10, 10, 20, 20), null, null, null);

    Graphics2D g2d = (Graphics2D) g;
    g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    g2d.setPaint(tp);
    g2d.setFont(myFont);
    g2d.drawString(mesg, 20, 100);
}

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From source file:com.krawler.esp.handlers.genericFileUpload.java

private BufferedImage toBufferedCompanyImage(Image image) {
    image = new ImageIcon(image).getImage();
    BufferedImage bufferedImage = new BufferedImage(image.getWidth(null), image.getHeight(null),
            BufferedImage.TYPE_INT_ARGB);
    Graphics2D g = bufferedImage.createGraphics();
    //       java.awt.Color transparent = new java.awt.Color(255, 255, 255, 1);
    //                g.setColor(transparent);
    //                int rule = java.awt.AlphaComposite.SRC_OVER;
    //                        
    //                java.awt.AlphaComposite ac = java.awt.AlphaComposite.getInstance(rule,1);
    //                g.setComposite(ac);
    //      g.fillRect(0, 0, image.getWidth(null), image.getHeight(null));
    g.drawImage(image, 0, 0, null);//from  w w w. j a  v a 2  s. c  o m
    g.dispose();

    return bufferedImage;
}

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From source file:edu.csudh.goTorosBank.WithdrawServlet.java

public String writeIntoCheck(String filePath, String username, String theAmount, String amountInWords,
        String dateWrote, String person_payingto, String billType) throws IOException, NullPointerException {

    File blueCheck = new File("blank-blue-check.jpg");
    String pathToOriginal = getServletContext().getRealPath("/" + blueCheck);

    File file = new File(pathToOriginal);
    BufferedImage imageToCopy = null;
    try {//from   w ww  . ja  v a 2 s  .  c  o m
        imageToCopy = ImageIO.read(file);
    } catch (IOException e) {
        e.printStackTrace();
    }

    String amount = theAmount;
    String person_gettingPayed = person_payingto;
    String amountinWords = amountInWords;
    String date = dateWrote;
    String bill_type = billType;

    int w = imageToCopy.getWidth();
    int h = imageToCopy.getHeight();
    BufferedImage img = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
    Graphics2D g2d = img.createGraphics();
    g2d.setColor(g2d.getBackground());
    g2d.fillRect(0, 0, w, h);
    g2d.drawImage(imageToCopy, 0, -100, null);
    g2d.setPaint(Color.black);
    g2d.setFont(new java.awt.Font("Serif", Font.BOLD, 36));
    //g2d.setFont(new Font("Serif", Font.BOLD, 36));

    FontMetrics fm = g2d.getFontMetrics();
    int x = img.getWidth() - fm.stringWidth(amount) - 100;
    int y = fm.getHeight();
    g2d.drawString(amount, x - 70, y + 335);
    g2d.drawString(person_gettingPayed, x - 800, y + 329);
    g2d.drawString(amountinWords, x - 940, y + 390);
    g2d.drawString(date, x - 340, y + 245);
    g2d.drawString(bill_type, x - 900, y + 530);

    String signature = "Use The Force";
    g2d.setFont(new java.awt.Font("Monotype Corsiva", Font.BOLD | Font.ITALIC, 36));
    g2d.drawString(signature, x - 340, y + 530);
    g2d.dispose();
    /*write check to file*/
    String filename = fileNameGenerator(username);
    String fullname = filePath + "_" + filename + ".jpg";
    ImageIO.write(img, "jpg", new File(fullname));
    return fullname;
}

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From source file:com.fengduo.bee.service.impl.file.FileServiceImpl.java

/**
 * ?/*from w  w  w . j  a  v  a2 s  . c o  m*/
 * 
 * @param source
 * @param targetW
 * @param targetH
 * @param ifScaling ?
 * @return
 */
public static BufferedImage resize(BufferedImage source, int targetW, int targetH, boolean ifScaling) {
    // targetWtargetH
    int type = source.getType();
    BufferedImage target = null;
    double sx = (double) targetW / source.getWidth();
    double sy = (double) targetH / source.getHeight();
    // targetWtargetH??,?if else???
    if (ifScaling) {
        if (sx > sy) {
            sx = sy;
            targetW = (int) (sx * source.getWidth());
        } else {
            sy = sx;
            targetH = (int) (sy * source.getHeight());
        }
    }
    if (type == BufferedImage.TYPE_CUSTOM) { // handmade
        ColorModel cm = source.getColorModel();
        WritableRaster raster = cm.createCompatibleWritableRaster(targetW, targetH);
        boolean alphaPremultiplied = cm.isAlphaPremultiplied();
        target = new BufferedImage(cm, raster, alphaPremultiplied, null);
    } else
        target = new BufferedImage(targetW, targetH, type);
    Graphics2D g = target.createGraphics();
    // smoother than exlax:
    g.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
    g.drawRenderedImage(source, AffineTransform.getScaleInstance(sx, sy));
    g.dispose();
    return target;
}

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From source file:org.kuali.mobility.people.service.PeopleServiceImpl.java

@Override
public BufferedImage generateObfuscatedImage(String text) {
    int width = 250;
    int height = 25;

    BufferedImage bufferedImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);

    Graphics2D g2d = bufferedImage.createGraphics();
    Font font = new Font("Arial", Font.PLAIN, 14);
    g2d.setFont(font);//from ww w  .j a v  a 2  s  .  c o m

    RenderingHints rh = new RenderingHints(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    rh.put(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);

    g2d.setRenderingHints(rh);

    Paint bg = new Color(255, 255, 255);
    g2d.setPaint(bg);
    g2d.fillRect(0, 0, width, height);

    int x = 0;
    int y = height - 7;

    Paint textPaint = new Color(0, 0, 0);
    g2d.setPaint(textPaint);
    g2d.drawString(text, x, y);

    g2d.dispose();
    return bufferedImage;
}

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From source file:dcstore.web.ImagesWeb.java

private void resizeImage(String inPath, int w, int h, String outPath) {
    try {/*from  w w  w. j av  a 2s .c  o m*/
        BufferedImage originalImage = ImageIO.read(new File(inPath));
        int ow, oh;
        ow = originalImage.getWidth();
        oh = originalImage.getHeight();
        double ratio = (double) ow / (double) oh;
        int type = originalImage.getType() == 0 ? BufferedImage.TYPE_INT_ARGB : originalImage.getType();
        int ch = (int) Math.round(w / ratio);

        BufferedImage resizedImage = new BufferedImage(w, h, type);
        Graphics2D g = resizedImage.createGraphics();
        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);
        g.setColor(Color.white);
        g.fillRect(0, 0, w, h);
        g.drawImage(originalImage, 0, (int) (((float) h - (float) ch) / 2), w, ch, null);
        g.dispose();
        ImageIO.write(resizedImage, "jpg", new File(outPath));
    } catch (Exception e) {
        FacesContext.getCurrentInstance().addMessage("",
                new FacesMessage("Error while resizeing image: " + e.getMessage()));
    }
}

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From source file:edu.csun.ecs.cs.multitouchj.application.whiteboard.ui.InteractiveCanvas.java

protected void drawPoints() {
    synchronized (previousPoints) {
        synchronized (resizableBufferedImage) {
            // clear points for pen if it's been long since last changed
            long currentTime = new Date().getTime();
            for (int id : pens.keySet()) {
                if (previousTimes.containsKey(id)) {
                    long time = previousTimes.get(id);
                    if ((currentTime - time) > POINT_CLEAR_DURATION) {
                        previousPoints.remove(id);
                        previousTimes.remove(id);
                    }//  ww w  . j a  v a2s .c om
                }
            }

            DisplayMode displayMode = getWindowManager().getDisplayManager().getCurrentDisplayMode();
            BufferedImage bufferedImage = resizableBufferedImage.getBufferedImage();

            Graphics2D graphics = bufferedImage.createGraphics();
            for (int id : pens.keySet()) {
                Pen pen = pens.get(id);
                LinkedList<Point> points = previousPoints.get(id);
                if ((pen != null) && (points != null) && (points.size() > 1)) {
                    log.debug("id: " + id + ", points: " + points.size());

                    Point previousPoint = points.removeFirst();
                    Iterator<Point> iterator = points.iterator();
                    while (iterator.hasNext()) {
                        Point point = iterator.next();
                        if (iterator.hasNext()) {
                            iterator.remove();
                        }

                        graphics.setStroke(pen.getStroke());
                        graphics.setPaint(pen.getPaint());
                        graphics.drawLine((int) Math.floor(previousPoint.getX()),
                                (displayMode.getHeight() - (int) Math.floor(previousPoint.getY())),
                                (int) Math.floor(point.getX()),
                                (displayMode.getHeight() - (int) Math.floor(point.getY())));

                        previousPoint = point;
                    }

                    setDirty(true);
                }
            }
            graphics.dispose();
        }
    }
}

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From source file:IconDemoApp.java

/**
 * Resizes an image using a Graphics2D object backed by a BufferedImage.
 * //from  ww  w. j a v a 2s.c  o 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:GraphEditorDemo.java

/**
 * copy the visible part of the graph to a file as a jpeg image
 * @param file//from  www .  j a  v a2  s  .  com
 */
public void writeJPEGImage(File file) {
    int width = vv.getWidth();
    int height = vv.getHeight();

    BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
    Graphics2D graphics = bi.createGraphics();
    vv.paint(graphics);
    graphics.dispose();

    try {
        ImageIO.write(bi, "jpeg", file);
    } catch (Exception e) {
        e.printStackTrace();
    }
}

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