Example usage for java.awt Graphics2D setColor

List of usage examples for java.awt Graphics2D setColor

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Introduction

In this page you can find the example usage for java.awt Graphics2D setColor.

Prototype

public abstract void setColor(Color c);

Source Link

Document

Sets this graphics context's current color to the specified color.

Usage

From source file:Main.java

public static BufferedImage highlightRegions(Image img, int[][] regions, int regionId, Color fgColour) {
    BufferedImage canvas = new BufferedImage(img.getWidth(null), img.getHeight(null),
            BufferedImage.TYPE_INT_ARGB);
    Graphics2D g2d = canvas.createGraphics();
    g2d.drawImage(img, 0, 0, null);/* ww  w  .jav  a 2s.  c  om*/
    g2d.setColor(fgColour);
    for (int y = 0; y < regions.length; y++) {
        for (int x = 0; x < regions[y].length; x++) {
            if (regions[y][x] == regionId) {
                g2d.drawRect(x, y, 1, 1);
            }
        }
    }

    return canvas;
}

From source file:Main.java

private static BufferedImage dye(BufferedImage image, Color color) {
    int w = image.getWidth();
    int h = image.getHeight();
    BufferedImage dyed = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB);
    Graphics2D g = dyed.createGraphics();
    g.drawImage(image, 0, 0, null);//from   w  w  w  . j a  v  a2 s.com
    g.setComposite(AlphaComposite.SrcAtop);
    g.setColor(color);
    g.fillRect(0, 0, w, h);
    g.dispose();
    return dyed;
}

From source file:com.liusoft.dlog4j.servlet.DLOG_RandomImageServlet.java

/**
 * ???,,?16,//from  ww w.j av a  2  s .c om
 * @param num   ??
 * @param out   ?
 * @throws IOException
 */
protected static void render(String num, boolean gif, OutputStream out) throws IOException {
    if (num.getBytes().length > 4)
        throw new IllegalArgumentException("The length of param num cannot exceed 4.");
    int width = 40;
    int height = 15;
    BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
    Graphics2D g = (Graphics2D) bi.getGraphics();
    g.setColor(Color.WHITE);
    g.fillRect(0, 0, width, height);
    Font mFont = new Font("Tahoma", Font.PLAIN, 14);
    g.setFont(mFont);
    g.setColor(Color.BLACK);
    g.drawString(num, 2, 13);
    if (gif) {
        AnimatedGifEncoder e = new AnimatedGifEncoder();
        e.setTransparent(Color.WHITE);
        e.start(out);
        e.setDelay(0);
        e.addFrame(bi);
        e.finish();
    } else {
        ImageIO.write(bi, "png", out);
    }
}

From source file:Main.java

/**
 * Clears the given area of the specified graphics object with the given
 * color or makes the region transparent.
 *///from w w  w .  j a v  a2s  .  c  o m
public static void clearRect(Graphics2D g, Rectangle rect, Color background) {
    if (background != null) {
        g.setColor(background);
        g.fillRect(rect.x, rect.y, rect.width, rect.height);
    } else {
        g.setComposite(AlphaComposite.getInstance(AlphaComposite.CLEAR, 0.0f));
        g.fillRect(rect.x, rect.y, rect.width, rect.height);
        g.setComposite(AlphaComposite.SrcOver);
    }
}

From source file:Main.java

public static BufferedImage drawBoundingBoxes(BufferedImage canvas, List<Rectangle> boxes, Color fgColour,
        Color bgColour) {/*from   w  w w  .j a  va  2 s.com*/
    Graphics2D g2d = canvas.createGraphics();
    for (Rectangle r : boxes) {
        g2d.setColor(bgColour);
        g2d.drawRect(r.x - 1, r.y - 1, r.width + 2, r.height + 2);
        g2d.drawRect(r.x + 1, r.y + 1, r.width - 2, r.height - 2);
        g2d.setColor(fgColour);
        g2d.drawRect(r.x, r.y, r.width, r.height);
    }

    return canvas;
}

From source file:Main.java

public static BufferedImage joinBufferedImage(BufferedImage img1, BufferedImage img2) {
    int offset = 2;
    int width = img1.getWidth() + img2.getWidth() + offset;
    int height = Math.max(img1.getHeight(), img2.getHeight()) + offset;
    BufferedImage newImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
    Graphics2D g2 = newImage.createGraphics();
    Color oldColor = g2.getColor();
    g2.setPaint(Color.BLACK);// w  w w.  ja v  a2  s . c  o  m
    g2.fillRect(0, 0, width, height);
    g2.setColor(oldColor);
    g2.drawImage(img1, null, 0, 0);
    g2.drawImage(img2, null, img1.getWidth() + offset, 0);
    g2.dispose();
    return newImage;
}

From source file:irille.pub.verify.RandomImageServlet.java

/**
 * ???,,?16,//from ww w .j av a 2s. com
 * @param num   ??
 * @param out   ?
 * @throws IOException
 */
protected static void render(String num, boolean gif, OutputStream out) throws IOException {
    if (num.getBytes().length > 4)
        throw new IllegalArgumentException("The length of param num cannot exceed 4.");
    int width = 50;
    int height = 18;
    BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
    Graphics2D g = (Graphics2D) bi.getGraphics();
    g.setColor(Color.WHITE);
    g.fillRect(0, 0, width, height);
    Font mFont = new Font("Tahoma", Font.BOLD | Font.ITALIC, 16);
    g.setFont(mFont);
    g.setColor(Color.BLACK);
    g.drawString(num, 2, 15);
    if (gif) {
        AnimatedGifEncoder e = new AnimatedGifEncoder();
        e.setTransparent(Color.WHITE);
        e.start(out);
        e.setDelay(0);
        e.addFrame(bi);
        e.finish();
    } else {
        ImageIO.write(bi, "png", out);
    }
}

From source file:Main.java

public static BufferedImage drawBoundingBoxes(BufferedImage canvas, Rectangle[] boxes, Color fgColour,
        Color bgColour) {//from   w  w w.j a v a2  s .c o m
    Graphics2D g2d = canvas.createGraphics();
    for (int i = 0; i < boxes.length; i++) {
        g2d.setColor(bgColour);
        g2d.drawRect(boxes[i].x - 1, boxes[i].y - 1, boxes[i].width + 2, boxes[i].height + 2);
        g2d.drawRect(boxes[i].x + 1, boxes[i].y + 1, boxes[i].width - 2, boxes[i].height - 2);
        g2d.setColor(fgColour);
        g2d.drawRect(boxes[i].x, boxes[i].y, boxes[i].width, boxes[i].height);
    }

    return canvas;
}

From source file:net.noday.core.utils.Captcha.java

public static BufferedImage gen(String text, int width, int height) throws IOException {
    BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_INT_BGR);
    Graphics2D g = (Graphics2D) bi.getGraphics();
    g.setColor(Color.GRAY);
    g.fillRect(0, 0, width, height);// ww  w  .ja v a  2  s.  c  o m
    for (int i = 0; i < 10; i++) {
        g.setColor(randColor(150, 250));
        g.drawOval(random.nextInt(110), random.nextInt(24), 5 + random.nextInt(10), 5 + random.nextInt(10));
        Font f = new Font("Arial", Font.ITALIC, 20);
        g.setFont(f);
        g.setColor(randColor(10, 240));
        g.drawString(text, 4, 24);
    }
    return bi;
}

From source file:QRCode.java

public static String createQRCode(String arg) {
    int size = 125;
    String fileType = "png";
    File myFile = null;//from  w  ww .j ava  2  s  .  com
    UUID uuid = UUID.nameUUIDFromBytes(arg.getBytes());

    try {
        myFile = File.createTempFile("temp-file-name", ".png");

        Hashtable<EncodeHintType, ErrorCorrectionLevel> hintMap = new Hashtable<EncodeHintType, ErrorCorrectionLevel>();
        hintMap.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.L);
        QRCodeWriter qrCodeWriter = new QRCodeWriter();
        BitMatrix byteMatrix = qrCodeWriter.encode(uuid.toString(), BarcodeFormat.QR_CODE, size, size, hintMap);
        int CrunchifyWidth = byteMatrix.getWidth();
        BufferedImage image = new BufferedImage(CrunchifyWidth, CrunchifyWidth, BufferedImage.TYPE_INT_RGB);
        image.createGraphics();

        Graphics2D graphics = (Graphics2D) image.getGraphics();
        graphics.setColor(Color.WHITE);
        graphics.fillRect(0, 0, CrunchifyWidth, CrunchifyWidth);
        graphics.setColor(Color.BLACK);

        for (int i = 0; i < CrunchifyWidth; i++) {
            for (int j = 0; j < CrunchifyWidth; j++) {
                if (byteMatrix.get(i, j)) {
                    graphics.fillRect(i, j, 1, 1);
                }
            }
        }
        ImageIO.write(image, fileType, myFile);
        //System.out.println("\n\nYou have successfully created QR Code " + myFile.getCanonicalPath());
        return myFile.getCanonicalPath();
    } catch (WriterException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }

    return null;
}