Examples of java.awt.image.ImageFilter

java.awt.image.ImageFilter
This class implements a filter for the set of interface methods that are used to deliver data from an ImageProducer to an ImageConsumer. It is meant to be used in conjunction with a FilteredImageSource object to produce filtered versions of existing images. It is a base class that provides the calls needed to implement a "Null filter" which has no effect on the data being passed through. Filters should subclass this class and override the methods which deal with the data that needs to be filtered and modify it as necessary. @see FilteredImageSource @see ImageConsumer @version 1.32 11/17/05 @author Jim Graham

                && icon.getIconWidth() > 0
                && icon.getIconHeight() > 0) {
            BufferedImage img = new BufferedImage(icon.getIconWidth(),
                    icon.getIconWidth(), BufferedImage.TYPE_INT_ARGB);
            icon.paintIcon(component, img.getGraphics(), 0, 0);
            ImageFilter filter = new RGBGrayFilter();
            ImageProducer producer = new FilteredImageSource(img.getSource(), filter);
            Image resultImage = component.createImage(producer);
            return new ImageIconUIResource(resultImage);
        }
        return super.getDisabledIcon(component, icon);

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     * @see        java.awt.Image#SCALE_REPLICATE
     * @see        java.awt.Image#SCALE_AREA_AVERAGING
     * @since      JDK1.1
     */
    public Image getScaledInstance(int width, int height, int hints) {
        ImageFilter filter;
        if ((hints & (SCALE_SMOOTH | SCALE_AREA_AVERAGING)) != 0) {
            filter = new AreaAveragingScaleFilter(width, height);
        } else {
            filter = new ReplicateScaleFilter(width, height);
        }

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    public Rectangle applyFilterDimensions(int width, int height) {


        Rectangle base = new Rectangle(width, height);
        Iterator i = m_renderSettings.getImageFilters().iterator();
        while (i.hasNext()) {
            ImageFilter filter = (ImageFilter)i.next();
            if (filter instanceof WholeImageFilter) {
                WholeImageFilter wholeFilter = (WholeImageFilter)filter;
                base = wholeFilter.getTransformedSpace(base);
            }
        }

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        threadSetNice();


        Iterator i = m_renderSettings.getImageFilters().iterator();
        while (i.hasNext()) {
            ImageFilter filter = (ImageFilter)i.next();
            image = applyFilter(image, filter);
        }


        threadSetNormal();

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      return null;
    }


    // Get the colorizing filter
    int[] targetColors = _getTargetColors(requestedProperties);
    ImageFilter filter = new ColorizingFilter(_SOURCE_COLORS, targetColors);


    Toolkit toolkit = Toolkit.getDefaultToolkit();
    ImageProducer producer = icon.getSource();


    // If direction is RTL, flip the source image

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    public Rectangle applyFilterDimensions(int width, int height) {


        Rectangle base = new Rectangle(width, height);
        Iterator i = m_renderSettings.getImageFilters().iterator();
        while (i.hasNext()) {
            ImageFilter filter = (ImageFilter)i.next();
            if (filter instanceof WholeImageFilter) {
                WholeImageFilter wholeFilter = (WholeImageFilter)filter;
                base = wholeFilter.getTransformedSpace(base);
            }
        }

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        threadSetNice();


        Iterator i = m_renderSettings.getImageFilters().iterator();
        while (i.hasNext()) {
            ImageFilter filter = (ImageFilter)i.next();
            image = applyFilter(image, filter);
        }


        threadSetNormal();

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        // Create the actual Image for output
        // Pass old image through grayscale filter, creating new image
        // This is necessary since GIFs are limited to 255 colors.
        // The easiest way to guarantee this is to convert to greyscale.
        Image oldImage = createOutputImage();
        ImageFilter filter = new GreyscaleFilter();
        Image newImage = createImage(new FilteredImageSource(oldImage.getSource(), filter));


        // Use MediaTracker to wait for new image to be created
        try {
            MediaTracker tracker = new MediaTracker(this);

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          MapImage mapImage = map.render(renderParam);
          BufferedImage image = mapImage.getImage();


          for (int i = rowMin; i < rowMin + createSpread; i++) {
            for (int j = colMin; j < colMin + createSpread; j++) {
              ImageFilter cropFilter = new CropImageFilter(
                  (j - colMin) * width,
                  (i - rowMin) * height, width, height);
              Image destImage = Toolkit.getDefaultToolkit()
                  .createImage(
                      new FilteredImageSource(image

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                && icon.getIconWidth() > 0
                && icon.getIconHeight() > 0) {
            BufferedImage img = new BufferedImage(icon.getIconWidth(),
                    icon.getIconWidth(), BufferedImage.TYPE_INT_ARGB);
            icon.paintIcon(component, img.getGraphics(), 0, 0);
            ImageFilter filter = new RGBGrayFilter();
            ImageProducer producer = new FilteredImageSource(img.getSource(), filter);
            Image resultImage = component.createImage(producer);
            return new ImageIconUIResource(resultImage);
        }
        return super.getDisabledIcon(component, icon);

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