Module org.apache.xmlgraphics.commons
Package org.apache.xmlgraphics.image.loader.impl

Class PreloaderRawPNG

java.lang.Object
org.apache.xmlgraphics.image.loader.impl.AbstractImagePreloader
org.apache.xmlgraphics.image.loader.impl.PreloaderRawPNG
All Implemented Interfaces:
ImagePreloader
public class PreloaderRawPNG extends AbstractImagePreloader

  • Constructor Details

    • PreloaderRawPNG

      public PreloaderRawPNG()

  • Method Details

    • preloadImage

      public ImageInfo preloadImage(String uri, Source src, ImageContext context) throws ImageException, IOException
      Description copied from interface: ImagePreloader
      "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:
      ImageException - if an error occurs while preloading the image
      IOException - if an I/O error occurs while preloading the image

    • getPriority

      public int getPriority()
      Description copied from class: AbstractImagePreloader
      Returns the priority of the preloader. The lower the value, the higher the preloader's priority.
      Specified by:
      getPriority in interface ImagePreloader
      Overrides:
      getPriority in class AbstractImagePreloader
      Returns:
      an integer (default is 1000)