com.aspose.imaging.fileformats.djvu

Field Detail

• PageExportedAction

  public static final com.aspose.ms.lang.Event<OnPageExportedAction> PageExportedAction

  Occurs when [page exported action].

• PropertyChanged

  public final com.aspose.ms.lang.Event<com.aspose.ms.System.ComponentModel.PropertyChangedEventHandler> PropertyChanged

Method Detail

• getBitsPerPixel

  public int getBitsPerPixel()

  Gets the image bits per pixel count.

  Value: The image bits per pixel count.

  Specified by:

  getBitsPerPixel in class Image

  Returns:

  The image bits per pixel count.

• getParentImage

  public DjvuImage getParentImage()

  Gets the parent image the page belongs to

  Value: The document.

• getWidth

  public int getWidth()

  Gets the width of the page

  Value: The width.

  Specified by:

  getWidth in interface IObjectWithBounds

  Specified by:

  getWidth in class Image

  Returns:

  The image width.

• getHeight

  public int getHeight()

  Gets the height of the page

  Value: The height.

  Specified by:

  getHeight in interface IObjectWithBounds

  Specified by:

  getHeight in class Image

  Returns:

  The image height.

• getHeader

  public DirmComponent getHeader()

  Gets the header.

  Value: The header.

• getImage

  public DjvuRaster getImage()

  Gets the image.

  Value: The image.

• getThumbnailImage

  public DjvuRaster getThumbnailImage()

  Gets or sets the thumbnail image for the page

  Value: The thumbnail image.

• setThumbnailImage

  public void setThumbnailImage(DjvuRaster value)

  Gets or sets the thumbnail image for the page

  Value: The thumbnail image.

• getPageNumber

  public int getPageNumber()

  Gets the page number.

  Value: The page number.

  Code example:

  This example shows how to load a DJVU image from a file stream and print information about the pages.

  ---

  String dir = "c:\\temp\\";
  
  // Load a DJVU image from a file stream.
  java.io.FileInputStream stream = new java.io.FileInputStream(dir + "sample.djvu");
  try {
      com.aspose.imaging.fileformats.djvu.DjvuImage djvuImage = new com.aspose.imaging.fileformats.djvu.DjvuImage(stream);
      try {
          System.out.println("The total number of pages: " + djvuImage.getPages().length);
          System.out.println("The active page number:    " + djvuImage.getActivePage().getPageNumber());
          System.out.println("The first page number:     " + djvuImage.getFirstPage().getPageNumber());
          System.out.println("The last page number:      " + djvuImage.getLastPage().getPageNumber());
  
          for (com.aspose.imaging.fileformats.djvu.DjvuPage djvuPage : djvuImage.getPages()) {
              System.out.println("--------------------------------------------------");
              System.out.println("Page number:     " + djvuPage.getPageNumber());
              System.out.println("Page size:       " + djvuPage.getSize());
              System.out.println("Page raw format: " + djvuPage.getRawDataFormat());
          }
      } finally {
          djvuImage.dispose();
      }
  } finally {
      stream.close();
  }
  
  //The output may look like this:
  //The total number of pages: 2
  //The active page number:    1
  //The first page number:     1
  //The last page number:      2
  //--------------------------------------------------
  //Page number:     1
  //Page size:       { Width = 2481, Height = 3508}
  //Page raw format: RgbIndexed1Bpp, used channels: 1
  //--------------------------------------------------
  //Page number:     2
  //Page size:       { Width = 2481, Height = 3508}
  //Page raw format: RgbIndexed1Bpp, used channels: 1
  

  ---

• isColor

  public boolean isColor()

  Gets a value indicating whether this instance is color.

  Value: true if this instance is color; otherwise, false.

• getTextForLocation

  public String getTextForLocation(Rectangle rect)

  Gets the text for the rectangle location

  Parameters:

  rect - The location rect.

  Returns:

  Text found on location

• getForegroundImage

  public DjvuRaster getForegroundImage()

  Gets the foreground image for the page

  Returns:

  Bitmap image

• getForegroundImage

  public DjvuRaster getForegroundImage(int subsample)

  Gets the foreground image for the page

  Parameters:

  subsample - The subsample.

  Returns:

  Bitmap image

• getTextImage

  public DjvuRaster getTextImage()

  Gets the text image.

  Returns:

  The bitmap

• getTextImage

  public DjvuRaster getTextImage(int subsample)

  Gets the text image.

  Parameters:

  subsample - The subsample.

  Returns:

  The bitmap

• getBackgroundImage

  public DjvuRaster getBackgroundImage()

  Gets the background image.

  Returns:

  The bitmap

• extractThumbnailImage

  public DjvuRaster extractThumbnailImage()

  Extracts the thumbnail image from the Djvu page.

  Returns:

  The Djvu raster image.