imagereader.java

gcc的组建

      {
	Iterator it = progressListeners.iterator();

	while (it.hasNext())
	  {
	    IIOReadProgressListener listener =
	      (IIOReadProgressListener) it.next();
	    listener.imageStarted(this, imageIndex);
	  }
      }
  }

  /**
   * Notifies all installed read update listeners, by calling their
   * imageUpdate methods, that the set of samples has changed.
   *
   * @param image the buffered image that is being updated
   * @param minX the X coordinate of the top-left pixel in this pass
   * @param minY the Y coordinate of the top-left pixel in this pass
   * @param width the total width of the rectangle covered by this
   * pass, including skipped pixels
   * @param height the total height of the rectangle covered by this
   * pass, including skipped pixels
   * @param periodX the horizontal sample interval
   * @param periodY the vertical sample interval
   * @param bands the affected bands in the destination
   */
  protected void processImageUpdate(BufferedImage image, int minX, int minY,
				    int width, int height, int periodX,
				    int periodY, int[] bands)
  {
    if (updateListeners != null)
      {
	Iterator it = updateListeners.iterator();

	while (it.hasNext())
	  {
	    IIOReadUpdateListener listener = (IIOReadUpdateListener) it.next();
	    listener.imageUpdate(this, image, minX, minY, width, height,
				 periodX, periodY, bands);
	  }
      }
  }

  /**
   * Notifies all installed update progress listeners, by calling
   * their passComplete methods, that a progressive pass has
   * completed.
   *
   * @param image the image that has being updated
   */
  protected void processPassComplete(BufferedImage image)
  {
    if (updateListeners != null)
      {
	Iterator it = updateListeners.iterator();

	while (it.hasNext())
	  {
	    IIOReadUpdateListener listener = (IIOReadUpdateListener) it.next();
	    listener.passComplete(this, image);
	  }
      }
  }

  /**
   * Notifies all installed read update listeners, by calling their
   * passStarted methods, that a new pass has begun.
   *
   * @param image the buffered image that is being updated
   * @param pass the current pass number
   * @param minPass the pass at which decoding will begin
   * @param maxPass the pass at which decoding will end
   * @param minX the X coordinate of the top-left pixel in this pass
   * @param minY the Y coordinate of the top-left pixel in this pass
   * @param width the total width of the rectangle covered by this
   * pass, including skipped pixels
   * @param height the total height of the rectangle covered by this
   * pass, including skipped pixels
   * @param periodX the horizontal sample interval
   * @param periodY the vertical sample interval
   * @param bands the affected bands in the destination
   */
  protected void processPassStarted(BufferedImage image, int pass, int minPass,
				    int maxPass, int minX, int minY,
				    int periodX, int periodY, int[] bands)
  {
    if (updateListeners != null)
      {
	Iterator it = updateListeners.iterator();

	while (it.hasNext())
	  {
	    IIOReadUpdateListener listener = (IIOReadUpdateListener) it.next();
	    listener.passStarted(this, image, pass, minPass, maxPass, minX,
				 minY, periodX, periodY, bands);
	  }
      }
  }

  /**
   * Notifies all installed read progress listeners that image loading
   * has been aborted by calling their readAborted methods.
   */
  protected void processReadAborted()
  {
     if (progressListeners != null)
      {
	Iterator it = progressListeners.iterator();

	while (it.hasNext())
	  {
	    IIOReadProgressListener listener =
	      (IIOReadProgressListener) it.next();
	    listener.readAborted(this);
	  }
      }
  }
  /**
   * Notifies all installed read progress listeners, by calling their
   * sequenceComplete methods, that a sequence of images has completed
   * loading.
   */
  protected void processSequenceComplete()
  {
     if (progressListeners != null)
      {
	Iterator it = progressListeners.iterator();

	while (it.hasNext())
	  {
	    IIOReadProgressListener listener =
	      (IIOReadProgressListener) it.next();
	    listener.sequenceComplete(this);
	  }
      }
  }

  /**
   * Notifies all installed read progress listeners, by calling their
   * sequenceStarted methods, a sequence of images has started
   * loading.
   *
   * @param minIndex the index of the first image in the sequence
   */
  protected void processSequenceStarted(int minIndex)
  {

    if (progressListeners != null)
      {
	Iterator it = progressListeners.iterator();

	while (it.hasNext())
	  {
	    IIOReadProgressListener listener =
	      (IIOReadProgressListener) it.next();
	    listener.sequenceStarted(this, minIndex);
	  }
      }
  }

  /**
   * Notifies all installed read progress listeners, by calling their
   * thumbnailComplete methods, that a thumbnail has completed
   * loading.
   */
  protected void processThumbnailComplete()
  {
    if (progressListeners != null)
      {
	Iterator it = progressListeners.iterator();

	while (it.hasNext())
	  {
	    IIOReadProgressListener listener =
	      (IIOReadProgressListener) it.next();
	    listener.thumbnailComplete(this);
	  }
      }
  }

  /**
   * Notifies all installed update progress listeners, by calling
   * their thumbnailPassComplete methods, that a progressive pass has
   * completed on a thumbnail.
   *
   * @param thumbnail the thumbnail that has being updated
   */
  protected void processThumbnailPassComplete(BufferedImage thumbnail)
  {
    if (updateListeners != null)
      {
	Iterator it = updateListeners.iterator();

	while (it.hasNext())
	  {
	    IIOReadUpdateListener listener = (IIOReadUpdateListener) it.next();
	    listener.thumbnailPassComplete(this, thumbnail);
	  }
      }
  }

  /**
   * Notifies all installed read update listeners, by calling their
   * thumbnailPassStarted methods, that a new pass has begun.
   *
   * @param thumbnail the thumbnail that is being updated
   * @param pass the current pass number
   * @param minPass the pass at which decoding will begin
   * @param maxPass the pass at which decoding will end
   * @param minX the X coordinate of the top-left pixel in this pass
   * @param minY the Y coordinate of the top-left pixel in this pass
   * @param width the total width of the rectangle covered by this
   * pass, including skipped pixels
   * @param height the total height of the rectangle covered by this
   * pass, including skipped pixels
   * @param periodX the horizontal sample interval
   * @param periodY the vertical sample interval
   * @param bands the affected bands in the destination
   */
  protected void processThumbnailPassStarted(BufferedImage thumbnail, int pass,
					     int minPass, int maxPass, int minX,
					     int minY, int periodX, int periodY,
					     int[] bands)
  {
    if (updateListeners != null)
      {
	Iterator it = updateListeners.iterator();

	while (it.hasNext())
	  {
	    IIOReadUpdateListener listener = (IIOReadUpdateListener) it.next();
	    listener.thumbnailPassStarted(this, thumbnail, pass, minPass,
					  maxPass, minX, minY, periodX,
					  periodY, bands);
	  }
      }
  }

  /**
   * Notifies all installed read progress listeners that a certain
   * percentage of a thumbnail has been loaded, by calling their
   * thumbnailProgress methods.
   *
   * @param percentageDone the percentage of thumbnail data that has
   * been loaded
   */
  protected void processThumbnailProgress(float percentageDone)
  {
    if (progressListeners != null)
      {
	Iterator it = progressListeners.iterator();

	while (it.hasNext())
	  {
	    IIOReadProgressListener listener =
	      (IIOReadProgressListener) it.next();
	    listener.thumbnailProgress(this, percentageDone);
	  }
      }
  }

  /**
   * Notifies all installed read progress listeners, by calling their
   * imageStarted methods, that thumbnail loading has started on the
   * given thumbnail of the given image.
   *
   * @param imageIndex the frame index of the image one of who's
   * thumbnails has started loading
   * @param thumbnailIndex the index of the thumbnail that has started
   * loading
   */
  protected void processThumbnailStarted(int imageIndex, int thumbnailIndex)
  {
    if (progressListeners != null)
      {
	Iterator it = progressListeners.iterator();

	while (it.hasNext())
	  {
	    IIOReadProgressListener listener =
	      (IIOReadProgressListener) it.next();
	    listener.thumbnailStarted(this, imageIndex, thumbnailIndex);
	  }
      }
  }

  /**
   * Notifies all installed read update listeners, by calling their
   * thumbnailUpdate methods, that the set of samples has changed.
   *
   * @param image the buffered image that is being updated
   * @param minX the X coordinate of the top-left pixel in this pass
   * @param minY the Y coordinate of the top-left pixel in this pass
   * @param width the total width of the rectangle covered by this
   * pass, including skipped pixels
   * @param height the total height of the rectangle covered by this
   * pass, including skipped pixels
   * @param periodX the horizontal sample interval
   * @param periodY the vertical sample interval
   * @param bands the affected bands in the destination
   */
  protected void processThumbnailUpdate(BufferedImage image, int minX, int minY,
					int width, int height, int periodX,
					int periodY, int[] bands)
  {
    if (updateListeners != null)
      {
	Iterator it = updateListeners.iterator();

	while (it.hasNext())
	  {
	    IIOReadUpdateListener listener = (IIOReadUpdateListener) it.next();
	    listener.thumbnailUpdate(this, image, minX, minY, width, height,
				     periodX, periodY, bands);
	  }
      }
  }

  /**
   * Notifies all installed warning listeners, by calling their
   * warningOccurred methods, that a warning message has been raised.
   *
   * @param warning the warning message
   *
   * @exception IllegalArgumentException if warning is null
   */
  protected void processWarningOccurred(String warning)
  {
    if (warning == null)
      throw new IllegalArgumentException ("null argument");
    if (warningListeners != null)
      {
	Iterator it = warningListeners.iterator();

	while (it.hasNext())
	  {
	    IIOReadWarningListener listener =
	      (IIOReadWarningListener) it.next();
	    listener.warningOccurred(this, warning);
	  }
      }
  }

  /**
   * Notify all installed warning listeners, by calling their
   * warningOccurred methods, that a warning message has been raised.
   * The warning message is retrieved from a resource bundle, using
   * the given basename and keyword.
   *
   * @param baseName the basename of the resource from which to
   * retrieve the warning message
   * @param keyword the keyword used to retrieve the warning from the
   * resource bundle
   *
   * @exception IllegalArgumentException if either baseName or keyword
   * is null
   * @exception IllegalArgumentException if no resource bundle is
   * found using baseName
   * @exception IllegalArgumentException if the given keyword produces
   * no results from the resource bundle
   * @exception IllegalArgumentException if the retrieved object is
   * not a String
   */
  protected void processWarningOccurred(String baseName,
					String keyword)
  {
    if (baseName == null || keyword == null)
      throw new IllegalArgumentException ("null argument");

    ResourceBundle b = null;

    try
      {
	b = ResourceBundle.getBundle(baseName, getLocale());
      }
    catch (MissingResourceException e)
      {
	throw new IllegalArgumentException ("no resource bundle found");
      }

    Object str = null;

    try
      {
	str = b.getObject(keyword);
      }
    catch (MissingResourceException e)
      {
	throw new IllegalArgumentException ("no results found for keyword");
      }

    if (! (str instanceof String))
      throw new IllegalArgumentException ("retrieved object not a String");

    String warning = (String) str;

    if (warningListeners != null)
      {
	Iterator it = warningListeners.iterator();

	while (it.hasNext())
	  {
	    IIOReadWarningListener listener =
	      (IIOReadWarningListener) it.next();
	    listener.warningOccurred(this, warning);
	  }
      }