Class PreloaderBMP

java.lang.Object
org.apache.xmlgraphics.image.loader.impl.AbstractImagePreloader
org.apache.xmlgraphics.image.loader.impl.PreloaderBMP
All Implemented Interfaces:
ImagePreloader

public class PreloaderBMP extends AbstractImagePreloader
Image preloader for BMP images.
  • Field Details

    • BMP_SIG_LENGTH

      protected static final int BMP_SIG_LENGTH
      Length of the BMP header
      See Also:
  • Constructor Details

    • PreloaderBMP

      public PreloaderBMP()
  • Method Details

    • preloadImage

      public ImageInfo preloadImage(String uri, Source src, ImageContext context) throws IOException, ImageException
      "Preloads" an image, i.e. indentifies whether the source image is supported by this implementation and determines the image's intrinsic size and possibly some additional information. The image is usually not fully loaded at this time to conserve memory. The method returns null if the image was not identified. An ImageException is only thrown if the image is identified but some error has happened while working on the file.
      Parameters:
      uri - the original (unresolved) URI of the image
      src - a image source the image is loaded from
      context - the context object that provides configuration information
      Returns:
      an image info object with the basic information about an image or null if the image is not supported by this implementation
      Throws:
      IOException - if an I/O error occurs while preloading the image
      ImageException - if an error occurs while preloading the image