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:org.jfree.graphics2d.demo.BufferedImageDemo.java

/**
 * Starting point for the demo./*from  w w w  .ja v  a  2  s. c o m*/
 * 
 * @param args  ignored.
 * 
 * @throws IOException 
 */
public static void main(String[] args) throws IOException {
    BufferedImage image = new BufferedImage(600, 400, BufferedImage.TYPE_INT_ARGB);
    Graphics2D g2 = image.createGraphics();
    ImageIcon icon = new ImageIcon(BufferedImageDemo.class.getResource("jfree_chart_1.jpg"));
    g2.rotate(Math.PI / 12);
    g2.setStroke(new BasicStroke(2.0f));
    g2.setPaint(Color.WHITE);
    g2.fill(new Rectangle(0, 0, 600, 400));
    g2.setPaint(Color.RED);
    g2.draw(new Rectangle(0, 0, 600, 400));
    g2.drawImage(icon.getImage(), 10, 20, null);
    ImageIO.write(image, "png", new File("image-test.png"));
}

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From source file:Main.java

public static void main(String[] argv) throws Exception {
    Image img = new ImageIcon("test.png").getImage();

    BufferedImage bufferedImage = new BufferedImage(img.getWidth(null), img.getHeight(null),
            BufferedImage.TYPE_INT_RGB);

    Graphics g = bufferedImage.createGraphics();
    g.drawImage(img, 0, 0, null);//w w  w.j a  v  a  2 s  . com
    g.dispose();

    ImageIO.write(bufferedImage, "png", new File("a.png"));
}

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From source file:Main.java

public static void main(String[] args) {
    SwingUtilities.invokeLater(new Runnable() {
        public void run() {
            JFrame f = new JFrame();
            f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            BufferedImage image = new BufferedImage(400, 300, BufferedImage.TYPE_INT_RGB);
            Graphics2D imageGraphics = image.createGraphics();
            GradientPaint gp = new GradientPaint(20f, 20f, Color.red, 380f, 280f, Color.orange);
            imageGraphics.setPaint(gp);/*from  w  ww.  j  ava  2  s  .c  om*/
            imageGraphics.fillRect(0, 0, 400, 300);

            JLabel textLabel = new JLabel("java2s.com");
            textLabel.setSize(textLabel.getPreferredSize());

            Dimension d = textLabel.getPreferredSize();
            BufferedImage bi = new BufferedImage(d.width, d.height, BufferedImage.TYPE_INT_ARGB);
            Graphics g = bi.createGraphics();
            g.setColor(new Color(255, 200, 255, 128));
            g.fillRoundRect(0, 0, bi.getWidth(f), bi.getHeight(f), 15, 10);
            g.setColor(Color.black);
            textLabel.paint(g);
            Graphics g2 = image.getGraphics();
            g2.drawImage(bi, 20, 20, f);

            ImageIcon ii = new ImageIcon(image);
            JLabel imageLabel = new JLabel(ii);

            f.getContentPane().add(imageLabel);
            f.pack();

            f.setVisible(true);
        }
    });
}

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From source file:Main.java

public static void main(String[] args) throws Exception {
    URL url = new URL("http://www.java2s.com/style/download.png");

    final BufferedImage originalImage = ImageIO.read(url);
    int width = originalImage.getWidth();
    int height = originalImage.getHeight();
    final BufferedImage textImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
    Graphics2D g = textImage.createGraphics();

    FontRenderContext frc = g.getFontRenderContext();
    Font font = new Font("Arial", Font.BOLD, 50);
    GlyphVector gv = font.createGlyphVector(frc, "java2s.com");

    int xOff = 0;
    int yOff = 50;

    Shape shape = gv.getOutline(xOff, yOff);
    g.setClip(shape);//from  ww  w.ja v  a 2s. c  o  m
    g.drawImage(originalImage, 0, 0, null);

    g.setStroke(new BasicStroke(2f));
    g.setColor(Color.BLACK);
    g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    g.draw(shape);
    g.dispose();

    ImageIO.write(textImage, "png", new File("cat-text.png"));

    SwingUtilities.invokeLater(new Runnable() {
        public void run() {
            JOptionPane.showMessageDialog(null, new JLabel(new ImageIcon(textImage)));
        }
    });
}

---

From source file:Main.java

public static void main(String[] args) throws IOException {
    URL url = new URL("http://www.java2s.com/style/download.png");
    BufferedImage im = ImageIO.read(url);
    URL url2 = new URL("http://www.java2s.com/style/download.png");
    BufferedImage im2 = ImageIO.read(url2);
    Graphics2D g = im.createGraphics();
    g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.4f));
    g.drawImage(im2, (im.getWidth() - im2.getWidth()) / 2, (im.getHeight() - im2.getHeight()) / 2, null);
    g.dispose();//  ww w . j  av  a 2  s. c  o  m

    display(im);
    ImageIO.write(im, "jpeg", new File("output.jpeg"));
}

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From source file:Main.java

public static void main(String[] args) throws Exception {
    String html = "<h1>Hello, world.</h1>";
    int width = 200, height = 100;

    BufferedImage image = GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice()
            .getDefaultConfiguration().createCompatibleImage(width, height);

    Graphics graphics = image.createGraphics();

    JEditorPane jep = new JEditorPane("text/html", html);
    jep.setSize(width, height);// w w w  .jav  a 2s . co m
    jep.print(graphics);

    ImageIO.write(image, "png", new File("Image.png"));
}

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From source file:MakeFades.java

public static void main(String[] args) throws IOException, NumberFormatException {

    // Create from and to colors based on those arguments
    Color from = Color.RED; // transparent
    Color to = Color.BLACK; // opaque

    // Loop through the sizes and directions, and create an image for each
    for (int s = 0; s < sizes.length; s++) {
        for (int d = 0; d < directions.length; d++) {
            // This is the size of the image
            int size = sizes[s];

            // Create a GradientPaint for this direction and size
            Paint paint = new GradientPaint(directions[d][0] * size, directions[d][1] * size, from,
                    directions[d][2] * size, directions[d][3] * size, to);

            // Start with a blank image that supports transparency
            BufferedImage image = new BufferedImage(size, size, BufferedImage.TYPE_INT_ARGB);

            // Now use fill the image with our color gradient
            Graphics2D g = image.createGraphics();
            g.setPaint(paint);//from w  w  w  . ja  v  a2s.  c om
            g.fillRect(0, 0, size, size);

            // This is the name of the file we'll write the image to
            File file = new File("fade-to-" + sizeNames[s] + "-" + directionNames[d] + ".png");

            // Save the image in PNG format using the javax.imageio API
            javax.imageio.ImageIO.write(image, "png", file);

            // Show the user our progress by printing the filename
            System.out.println(file);
        }
    }
}

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From source file:Main.java

public static void main(String[] args) throws IOException {
    BufferedImage image = ImageIO.read(new File("E:/Java_Dev/plasma.gif"));

    // crop image
    BufferedImage firstHalf = image.getSubimage(0, 0, (image.getWidth() / 2), image.getHeight());
    BufferedImage secondHalf = image.getSubimage(image.getWidth() / 2, 0, image.getWidth() / 2,
            image.getHeight());/*  ww w . jav a  2 s . c o  m*/

    File croppedFile1 = new File("E:/Java_Dev/half1.png");
    File croppedFile2 = new File("E:/Java_Dev/half2.png");

    ImageIO.write(firstHalf, "png", croppedFile1);
    ImageIO.write(secondHalf, "png", croppedFile2);

    // join image
    BufferedImage joined = new BufferedImage(image.getWidth(), image.getHeight(), image.getType());
    BufferedImage image1 = ImageIO.read(new File("E:/Java_Dev/half1.png"));
    BufferedImage image2 = ImageIO.read(new File("E:/Java_Dev/half2.png"));

    Graphics2D graph = joined.createGraphics();
    graph.drawImage(image1, 0, 0, null);
    graph.drawImage(image2, image1.getWidth(), 0, null);

    File joinedFile = new File("E:/Java_Dev/joined.png");
    ImageIO.write(joined, "png", joinedFile);
}

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From source file:akori.AKORI.java

public static void main(String[] args) throws IOException, InterruptedException {
    System.out.println("esto es AKORI");

    URL = "http://www.mbauchile.cl";
    PATH = "E:\\NetBeansProjects\\AKORI\\";
    NAME = "mbauchile.png";
    // Extrar DOM tree

    Document doc = Jsoup.connect(URL).timeout(0).get();

    // The Firefox driver supports javascript 
    WebDriver driver = new FirefoxDriver();
    driver.manage().window().maximize();
    System.out.println(driver.manage().window().getSize().toString());
    System.out.println(driver.manage().window().getPosition().toString());
    int xmax = driver.manage().window().getSize().width;
    int ymax = driver.manage().window().getSize().height;

    // Go to the URL page
    driver.get(URL);//w w  w .  ja  v  a 2  s.  com

    File screen = ((TakesScreenshot) driver).getScreenshotAs(OutputType.FILE);
    FileUtils.copyFile(screen, new File(PATH + NAME));

    BufferedImage img = ImageIO.read(new File(PATH + NAME));
    //Graphics2D graph = img.createGraphics();

    BufferedImage img1 = new BufferedImage(xmax, ymax, BufferedImage.TYPE_INT_ARGB);
    Graphics2D graph1 = img.createGraphics();
    double[][] matrix = new double[ymax][xmax];
    BufferedReader in = new BufferedReader(new FileReader("et.txt"));
    String linea;
    double max = 0;
    graph1.drawImage(img, 0, 0, null);
    HashMap<String, Integer> lista = new HashMap<String, Integer>();
    int count = 0;
    for (int i = 0; (linea = in.readLine()) != null && i < 10000; ++i) {
        String[] datos = linea.split(",");
        int x = (int) Double.parseDouble(datos[0]);
        int y = (int) Double.parseDouble(datos[2]);
        long time = Double.valueOf(datos[4]).longValue();
        if (x >= xmax || y >= ymax)
            continue;
        if (time < 691215)
            continue;
        if (time > 705648)
            break;
        if (lista.containsKey(x + "," + y))
            lista.put(x + "," + y, lista.get(x + "," + y) + 1);
        else
            lista.put(x + "," + y, 1);
        ++count;
    }
    System.out.println(count);
    in.close();
    Iterator iter = lista.entrySet().iterator();
    Map.Entry e;
    for (String key : lista.keySet()) {
        Integer i = lista.get(key);
        if (max < i)
            max = i;
    }
    System.out.println(max);
    max = 0;
    while (iter.hasNext()) {
        e = (Map.Entry) iter.next();
        String xy = (String) e.getKey();
        String[] datos = xy.split(",");
        int x = Integer.parseInt(datos[0]);
        int y = Integer.parseInt(datos[1]);
        matrix[y][x] += (int) e.getValue();
        double aux;
        if ((aux = normalMatrix(matrix, y, x, ((int) e.getValue()) * 4)) > max) {
            max = aux;
        }
        //normalMatrix(matrix,x,y,20);
        if (matrix[y][x] > max)
            max = matrix[y][x];
    }
    int A, R, G, B, n;
    for (int i = 0; i < xmax; ++i) {
        for (int j = 0; j < ymax; ++j) {
            if (matrix[j][i] != 0) {
                n = (int) Math.round(matrix[j][i] * 100 / max);
                R = Math.round((255 * n) / 100);
                G = Math.round((255 * (100 - n)) / 100);
                B = 0;
                A = Math.round((255 * n) / 100);
                ;
                if (R > 255)
                    R = 255;
                if (R < 0)
                    R = 0;
                if (G > 255)
                    G = 255;
                if (G < 0)
                    G = 0;
                if (R < 50)
                    A = 0;
                graph1.setColor(new Color(R, G, B, A));
                graph1.fillOval(i, j, 1, 1);
            }
        }
    }
    //graph1.dispose();

    ImageIO.write(img, "png", new File("example.png"));
    System.out.println(max);

    graph1.setColor(Color.RED);
    // Extraer elementos
    Elements e1 = doc.body().getAllElements();
    int i = 1;
    ArrayList<String> tags = new ArrayList<String>();
    for (Element temp : e1) {

        if (tags.indexOf(temp.tagName()) == -1) {
            tags.add(temp.tagName());

            List<WebElement> query = driver.findElements(By.tagName(temp.tagName()));
            for (WebElement temp1 : query) {
                Point po = temp1.getLocation();
                Dimension d = temp1.getSize();
                if (d.width <= 0 || d.height <= 0 || po.x < 0 || po.y < 0)
                    continue;
                System.out.println(i + " " + temp.nodeName());
                System.out.println("  x: " + po.x + " y: " + po.y);
                System.out.println("  width: " + d.width + " height: " + d.height);
                graph1.draw(new Rectangle(po.x, po.y, d.width, d.height));
                ++i;
            }
        }
    }

    graph1.dispose();
    ImageIO.write(img, "png", new File(PATH + NAME));

    driver.quit();

}

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From source file:Main.java

public static byte[] mergeImageAndText(String imageFilePath, String text, Point textPosition)
        throws IOException {

    BufferedImage im = ImageIO.read(new URL(imageFilePath));
    Graphics2D g2 = im.createGraphics();
    g2.drawString(text, textPosition.x, textPosition.y);
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    ImageIO.write(im, "png", baos);

    return baos.toByteArray();
}

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