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:CompositingDST_ATOP.java

public void paint(Graphics g) {
    Graphics2D g2d = (Graphics2D) g;

    AlphaComposite ac = AlphaComposite.getInstance(AlphaComposite.SRC, 0.5f);

    BufferedImage buffImg = new BufferedImage(60, 60, BufferedImage.TYPE_INT_ARGB);
    Graphics2D gbi = buffImg.createGraphics();

    gbi.setPaint(Color.red);/*from   w w  w  .  ja va  2  s  .  co  m*/
    gbi.fillRect(0, 0, 40, 40);
    gbi.setComposite(ac);

    gbi.setPaint(Color.green);
    gbi.fillRect(5, 5, 40, 40);

    g2d.drawImage(buffImg, 20, 20, null);
}

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From source file:CompositingDST.java

public void paint(Graphics g) {
    Graphics2D g2d = (Graphics2D) g;

    AlphaComposite ac = AlphaComposite.getInstance(AlphaComposite.DST, 0.5f);

    BufferedImage buffImg = new BufferedImage(60, 60, BufferedImage.TYPE_INT_ARGB);
    Graphics2D gbi = buffImg.createGraphics();

    gbi.setPaint(Color.red);/*from w  w  w.  ja  va2 s  .  c  om*/
    gbi.fillRect(0, 0, 40, 40);
    gbi.setComposite(ac);

    gbi.setPaint(Color.green);
    gbi.fillRect(5, 5, 40, 40);

    g2d.drawImage(buffImg, 20, 20, null);
}

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From source file:CompositingDST_ATOP.java

public void paint(Graphics g) {
    Graphics2D g2d = (Graphics2D) g;

    AlphaComposite ac = AlphaComposite.getInstance(AlphaComposite.DST_OUT, 0.5f);

    BufferedImage buffImg = new BufferedImage(60, 60, BufferedImage.TYPE_INT_ARGB);
    Graphics2D gbi = buffImg.createGraphics();

    gbi.setPaint(Color.red);/*from ww w. j a  va2 s.  com*/
    gbi.fillRect(0, 0, 40, 40);
    gbi.setComposite(ac);

    gbi.setPaint(Color.green);
    gbi.fillRect(5, 5, 40, 40);

    g2d.drawImage(buffImg, 20, 20, null);
}

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From source file:Main.java

public MyPanel() {
    this.setLayout(new GridLayout());
    this.setPreferredSize(new Dimension(W, H));
    int w = W / 2;
    int h = H / 2;
    int r = w / 5;
    BufferedImage bi = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
    Graphics2D g = bi.createGraphics();
    g.setColor(Color.gray);//from w ww. ja va 2s  .  com
    g.fillRect(0, 0, w, h);
    g.setColor(Color.blue);
    g.fillRect(w / 2 - r, h / 2 - r / 2, 2 * r, r);
    g.dispose();
    this.add(new JLabel(new ImageIcon(bi), JLabel.CENTER));
}

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From source file:TexturePaintDemo.java

public void paint(Graphics g) {
    Graphics2D g2 = (Graphics2D) g;
    BufferedImage bi = new BufferedImage(5, 5, BufferedImage.TYPE_INT_RGB);
    Graphics2D big = bi.createGraphics();
    big.setColor(Color.blue);/*from w ww.ja va  2s . c  o  m*/
    big.fillRect(0, 0, 5, 5);
    big.setColor(Color.lightGray);
    big.fillOval(0, 0, 5, 5);
    Rectangle r = new Rectangle(0, 0, 5, 5);
    g2.setPaint(new TexturePaint(bi, r));

    Rectangle rect = new Rectangle(5, 5, 200, 200);

    g2.fill(rect);
}

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From source file:ImageOpByRomain.java

/**
 * <p>//from   www  .java 2s.c  o  m
 * Returns a thumbnail of a source image. <code>newSize</code> defines the
 * length of the longest dimension of the thumbnail. The other dimension is
 * then computed according to the dimensions ratio of the original picture.
 * </p>
 * <p>
 * This method favors speed over quality. When the new size is less than half
 * the longest dimension of the source image,
 * {@link #createThumbnail(BufferedImage, int)} or
 * {@link #createThumbnail(BufferedImage, int, int)} should be used instead to
 * ensure the quality of the result without sacrificing too much performance.
 * </p>
 * 
 * @see #createThumbnailFast(java.awt.image.BufferedImage, int, int)
 * @see #createThumbnail(java.awt.image.BufferedImage, int)
 * @see #createThumbnail(java.awt.image.BufferedImage, int, int)
 * @param image
 *            the source image
 * @param newSize
 *            the length of the largest dimension of the thumbnail
 * @return a new compatible <code>BufferedImage</code> containing a
 *         thumbnail of <code>image</code>
 * @throws IllegalArgumentException
 *             if <code>newSize</code> is larger than the largest dimension
 *             of <code>image</code> or &lt;= 0
 */
public static BufferedImage createThumbnailFast(BufferedImage image, int newSize) {
    float ratio;
    int width = image.getWidth();
    int height = image.getHeight();

    if (width > height) {
        if (newSize >= width) {
            throw new IllegalArgumentException("newSize must be lower than" + " the image width");
        } else if (newSize <= 0) {
            throw new IllegalArgumentException("newSize must" + " be greater than 0");
        }

        ratio = (float) width / (float) height;
        width = newSize;
        height = (int) (newSize / ratio);
    } else {
        if (newSize >= height) {
            throw new IllegalArgumentException("newSize must be lower than" + " the image height");
        } else if (newSize <= 0) {
            throw new IllegalArgumentException("newSize must" + " be greater than 0");
        }

        ratio = (float) height / (float) width;
        height = newSize;
        width = (int) (newSize / ratio);
    }

    BufferedImage temp = createCompatibleImage(image, width, height);
    Graphics2D g2 = temp.createGraphics();
    g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
    g2.drawImage(image, 0, 0, temp.getWidth(), temp.getHeight(), null);
    g2.dispose();

    return temp;
}

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From source file:Main.java

private Image createImage(Color color) {
    BufferedImage bImg = new BufferedImage(Width, Height, BufferedImage.TYPE_INT_ARGB);
    Graphics2D g2 = bImg.createGraphics();
    g2.setBackground(color);//from www  .jav a 2s .c o  m
    g2.clearRect(0, 0, Width, Height);
    g2.dispose();
    return bImg;
}

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From source file:GraphicsInfo.java

public void paint(Graphics g) {
    Graphics2D g2d = (Graphics2D) g;
    GraphicsConfiguration gc = g2d.getDeviceConfiguration();
    printModelType(gc.getColorModel());/*from   w ww .  ja v  a  2  s . co  m*/
    BufferedImage bi = new BufferedImage(20, 20, BufferedImage.TYPE_BYTE_INDEXED);
    Graphics2D g2d2 = bi.createGraphics();
    GraphicsConfiguration gc2 = g2d2.getDeviceConfiguration();
    printModelType(gc2.getColorModel());
    bi = new BufferedImage(20, 20, BufferedImage.TYPE_INT_ARGB);
    g2d2 = bi.createGraphics();
    gc2 = g2d2.getDeviceConfiguration();
    printModelType(gc2.getColorModel());
    bi = new BufferedImage(20, 20, BufferedImage.TYPE_USHORT_565_RGB);
    g2d2 = bi.createGraphics();
    gc2 = g2d2.getDeviceConfiguration();
    printModelType(gc2.getColorModel());
}

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From source file:TexturedText.java

private BufferedImage getTextureImage() {
    // Create the test image.
    int size = 8;
    BufferedImage bi = new BufferedImage(size, size, BufferedImage.TYPE_INT_ARGB);
    Graphics2D g2 = bi.createGraphics();
    g2.setPaint(Color.red);//from  ww w  .  j  av  a 2  s  .c om
    g2.fillRect(0, 0, size / 2, size / 2);
    g2.setPaint(Color.yellow);
    g2.fillRect(size / 2, 0, size, size / 2);
    g2.setPaint(Color.green);
    g2.fillRect(0, size / 2, size / 2, size);
    g2.setPaint(Color.blue);
    g2.fillRect(size / 2, size / 2, size, size);
    return bi;
}

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From source file:ImageOpByRomain.java

/**
 * <p>//  ww w  .j av  a2s . co  m
 * Returns a thumbnail of a source image.
 * </p>
 * <p>
 * This method offers a good trade-off between speed and quality. The result
 * looks better than
 * {@link #createThumbnailFast(java.awt.image.BufferedImage, int)} when the
 * new size is less than half the longest dimension of the source image, yet
 * the rendering speed is almost similar.
 * </p>
 * 
 * @see #createThumbnailFast(java.awt.image.BufferedImage, int)
 * @see #createThumbnailFast(java.awt.image.BufferedImage, int, int)
 * @see #createThumbnail(java.awt.image.BufferedImage, int)
 * @param image
 *            the source image
 * @param newWidth
 *            the width of the thumbnail
 * @param newHeight
 *            the height of the thumbnail
 * @return a new compatible <code>BufferedImage</code> containing a
 *         thumbnail of <code>image</code>
 * @throws IllegalArgumentException
 *             if <code>newWidth</code> is larger than the width of
 *             <code>image</code> or if code>newHeight</code> is larger
 *             than the height of <code>image or if one the dimensions is not
 *             &gt; 0</code>
 */
public static BufferedImage createThumbnail(BufferedImage image, int newWidth, int newHeight) {
    int width = image.getWidth();
    int height = image.getHeight();

    if (newWidth >= width || newHeight >= height) {
        throw new IllegalArgumentException(
                "newWidth and newHeight cannot" + " be greater than the image" + " dimensions");
    } else if (newWidth <= 0 || newHeight <= 0) {
        throw new IllegalArgumentException("newWidth and newHeight must" + " be greater than 0");
    }

    BufferedImage thumb = image;

    do {
        if (width > newWidth) {
            width /= 2;
            if (width < newWidth) {
                width = newWidth;
            }
        }

        if (height > newHeight) {
            height /= 2;
            if (height < newHeight) {
                height = newHeight;
            }
        }

        BufferedImage temp = createCompatibleImage(image, width, height);
        Graphics2D g2 = temp.createGraphics();
        g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
        g2.drawImage(thumb, 0, 0, temp.getWidth(), temp.getHeight(), null);
        g2.dispose();

        thumb = temp;
    } while (width != newWidth || height != newHeight);

    return thumb;
}

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