com.aspose.imaging.fileformats.gif.blocks

Field Detail

• EXTENSION_LABEL

  public static final int EXTENSION_LABEL

  Block extension label.

  See Also:

  Constant Field Values

• IMAGE_DESCRIPTOR_SIZE

  public static final int IMAGE_DESCRIPTOR_SIZE

  The image descriptor size.

  See Also:

  Constant Field Values

Constructor Detail

• GifFrameBlock

  public GifFrameBlock(int width,
                       int height)

  Initializes a new instance of the GifFrameBlock class.

  Parameters:

  width - The image width.

  height - The image height.

  Code example:

  The following example shows how to compose an animated GIF image from individual GIF blocks.

  ---

  String dir = "c:\\temp\\";
  
  // Create a GIF image 100 x 100 px.
  // The first block is fully black by default.
  com.aspose.imaging.fileformats.gif.blocks.GifFrameBlock firstBlock = new com.aspose.imaging.fileformats.gif.blocks.GifFrameBlock(100, 100);
  com.aspose.imaging.fileformats.gif.GifImage gifImage = new com.aspose.imaging.fileformats.gif.GifImage(firstBlock);
  try {
      // The first circle is red
      com.aspose.imaging.brushes.SolidBrush brush1 = new com.aspose.imaging.brushes.SolidBrush(com.aspose.imaging.Color.getRed());
  
      // The second circle is black
      com.aspose.imaging.brushes.SolidBrush brush2 = new com.aspose.imaging.brushes.SolidBrush(com.aspose.imaging.Color.getBlack());
  
      // Gradually increase the angle of the red arc shape.
      for (int angle = 10; angle <= 360; angle += 10) {
          com.aspose.imaging.fileformats.gif.blocks.GifFrameBlock block = new com.aspose.imaging.fileformats.gif.blocks.GifFrameBlock(100, 100);
  
          com.aspose.imaging.Graphics gr = new com.aspose.imaging.Graphics(block);
          gr.fillPie(brush1, block.getBounds(), 0, angle);
  
          gifImage.addBlock(block);
      }
  
      // Gradually increase the angle of the black arc and wipe out the red arc.
      for (int angle = 10; angle <= 360; angle += 10) {
          com.aspose.imaging.fileformats.gif.blocks.GifFrameBlock block = new com.aspose.imaging.fileformats.gif.blocks.GifFrameBlock(100, 100);
  
          com.aspose.imaging.Graphics gr = new com.aspose.imaging.Graphics(block);
          gr.fillPie(brush2, block.getBounds(), 0, angle);
          gr.fillPie(brush1, block.getBounds(), angle, 360 - angle);
  
          gifImage.addBlock(block);
      }
  
      gifImage.save(dir + "animated_radar.gif");
  } finally {
      firstBlock.dispose();
      gifImage.dispose();
  }
  

  ---

• GifFrameBlock

  public GifFrameBlock(int left,
                       int top,
                       int width,
                       int height)

  Initializes a new instance of the GifFrameBlock class.

  Parameters:

  left - The left image position.

  top - The top image position.

  width - The image width.

  height - The image height.

• GifFrameBlock

  public GifFrameBlock(int left,
                       int top,
                       int width,
                       int height,
                       IColorPalette colorPalette,
                       boolean isPaletteSorted,
                       boolean isGifFrameInterlaced,
                       byte bitsPerPixel)

  Initializes a new instance of the GifFrameBlock class.

  Parameters:

  left - The left image position.

  top - The top image position.

  width - The image Width.

  height - The image Height.

  colorPalette - The color palette.

  isPaletteSorted - if set to true the color palette is sorted.

  isGifFrameInterlaced - if set to true the GIF frame is interlaced.

  bitsPerPixel - The bits per pixel.

• GifFrameBlock

  public GifFrameBlock(RasterImage image)

  Initializes a new instance of the GifFrameBlock class.

  Parameters:

  image - The image to initialize frame pixel and palette data with.

• GifFrameBlock

  public GifFrameBlock(RasterImage image,
                       int left,
                       int top)

  Initializes a new instance of the GifFrameBlock class.

  Parameters:

  image - The image to initialize frame pixel and palette data with.

  left - The left image position.

  top - The top image position.

• GifFrameBlock

  public GifFrameBlock(RasterImage image,
                       int left,
                       int top,
                       boolean isPaletteSorted,
                       boolean isGifFrameInterlaced,
                       byte lzwCodeSize)

  Initializes a new instance of the GifFrameBlock class.

  Parameters:

  image - The image to initialize frame pixel and palette data with.

  left - The left image position.

  top - The top image position.

  isPaletteSorted - if set to true the color palette is sorted.

  isGifFrameInterlaced - if set to true the GIF frame is interlaced.

  lzwCodeSize - The bits per pixel.

• GifFrameBlock

  public GifFrameBlock(InputStream stream)

  Initializes a new instance of the GifFrameBlock class.

  Parameters:

  stream - The stream to load an image from and initialize frame pixel and palette data with.

• GifFrameBlock

  public GifFrameBlock(com.aspose.ms.System.IO.Stream stream)

• GifFrameBlock

  public GifFrameBlock(InputStream stream,
                       int left,
                       int top)

  Initializes a new instance of the GifFrameBlock class.

  Parameters:

  stream - The stream to load an image from and initialize frame pixel and palette data with.

  left - The left image position.

  top - The top image position.

• GifFrameBlock

  public GifFrameBlock(InputStream stream,
                       int left,
                       int top,
                       boolean isPaletteSorted,
                       boolean isGifFrameInterlaced,
                       byte lzwCodeSize)

  Initializes a new instance of the GifFrameBlock class.

  Parameters:

  stream - The stream to load an image from and initialize frame pixel and palette data with.

  left - The left image position.

  top - The top image position.

  isPaletteSorted - if set to true the color palette is sorted.

  isGifFrameInterlaced - if set to true the GIF frame is interlaced.

  lzwCodeSize - The bits per pixel.

• GifFrameBlock

  public GifFrameBlock(String path)

  Initializes a new instance of the GifFrameBlock class.

  Parameters:

  path - The path to load an image from and initialize frame pixel and palette data with.

• GifFrameBlock

  public GifFrameBlock(String path,
                       int left,
                       int top)

  Initializes a new instance of the GifFrameBlock class.

  Parameters:

  path - The path to load an image from and initialize frame pixel and palette data with.

  left - The left image position.

  top - The top image position.

• GifFrameBlock

  public GifFrameBlock(String path,
                       int left,
                       int top,
                       boolean isPaletteSorted,
                       boolean isGifFrameInterlaced,
                       byte lzwCodeSize)

  Initializes a new instance of the GifFrameBlock class.

  Parameters:

  path - The path to load an image from and initialize frame pixel and palette data with.

  left - The left image position.

  top - The top image position.

  isPaletteSorted - if set to true the color palette is sorted.

  isGifFrameInterlaced - if set to true the GIF frame is interlaced.

  lzwCodeSize - The bits per pixel.

Method Detail

• getColorPalette

  public static IColorPalette getColorPalette(IColorPalette framePalette,
                                              IColorPalette containerPalette)

  Gets the associated color palette.

  Parameters:

  framePalette - The frame palette.

  containerPalette - The container palette.

  Returns:

  The color palette.

• createFlags

  public static byte createFlags(IColorPalette colorPalette,
                                 boolean isPaletteSorted,
                                 boolean isGifFrameInterlaced)

  Creates the flags.

  Parameters:

  colorPalette - The color palette.

  isPaletteSorted - if set to true the colors in color palette are sorted.

  isGifFrameInterlaced - if set to true the GIF frame image is interlaced.

  Returns:

  The created flags.

• getFileFormat

  public long getFileFormat()

  Gets a value of file format

  Overrides:

  getFileFormat in class Image

• getWidth

  public int getWidth()

  Gets the image width.

  Specified by:

  getWidth in interface IObjectWithBounds

  Specified by:

  getWidth in class Image

  Returns:

  The image width.

• getHeight

  public int getHeight()

  Gets the image height.

  Specified by:

  getHeight in interface IObjectWithBounds

  Specified by:

  getHeight in class Image

  Returns:

  The image height.

• getBitsPerPixel

  public int getBitsPerPixel()

  Gets the image bits per pixel count.

  Specified by:

  getBitsPerPixel in class Image

  Returns:

  The image bits per pixel count.

• getFrameTime

  public final int getFrameTime()

  Gets the duration.

  Value: The duration. <autogeneratedoc></autogeneratedoc>

  Specified by:

  getFrameTime in interface IAnimationFrame

  Returns:

  the duration.

• getInterlaced

  public boolean getInterlaced()

  Gets or sets a value indicating whether this GifFrameBlock is interlaced.

  Returns:

  true if interlaced; otherwise, false.

• setInterlaced

  public void setInterlaced(boolean value)

  Gets or sets a value indicating whether this GifFrameBlock is interlaced.

  Parameters:

  value - true if interlaced; otherwise, false.

• isPaletteSorted

  public boolean isPaletteSorted()

  Gets or sets a value indicating whether color palette is sorted.

  Returns:

  true if color palette is sorted; otherwise, false.

• setPaletteSorted

  public void setPaletteSorted(boolean value)

  Gets or sets a value indicating whether color palette is sorted.

  Parameters:

  value - true if color palette is sorted; otherwise, false.

• getGifFrameBitsPerPixel

  public byte getGifFrameBitsPerPixel()

  Gets or sets the GIF frame bits per pixel.

  Returns:

  The GIF frame bits per pixel.

• setGifFrameBitsPerPixel

  public void setGifFrameBitsPerPixel(byte value)

  Gets or sets the GIF frame bits per pixel.

  Parameters:

  value - The GIF frame bits per pixel.

• getLeft

  public int getLeft()

  Gets or sets the left image location.

  Returns:

  The left image location.

• setLeft

  public void setLeft(int value)

  Gets or sets the left image location.

  Parameters:

  value - The left image location.

• getTop

  public int getTop()

  Gets or sets the top image location.

  Returns:

  The top image location.

• setTop

  public void setTop(int value)

  Gets or sets the top image location.

  Parameters:

  value - The top image location.

• getFrameTop

  public final int getFrameTop()

  Converts to p.

  Value: The top. <autogeneratedoc></autogeneratedoc>

  Specified by:

  getFrameTop in interface IAnimationFrame

• getFrameLeft

  public final int getFrameLeft()

  Gets the left.

  Value: The left. <autogeneratedoc></autogeneratedoc>

  Specified by:

  getFrameLeft in interface IAnimationFrame

  Returns:

  the left.

• getFlags

  public byte getFlags()

  Gets or sets the flags.

  Returns:

  The flags.

• setFlags

  public void setFlags(byte value)

  Gets or sets the flags.

  Parameters:

  value - The flags.

• getControlBlock

  public GifGraphicsControlBlock getControlBlock()

  Gets the graphics control block associated with this block.

  Returns:

  The control block.

• hasTransparentColor

  public boolean hasTransparentColor()

  Gets a value indicating whether frame block has transparent color.

  Overrides:

  hasTransparentColor in class RasterImage

• setTransparentColor

  public void setTransparentColor(boolean value)

  Gets a value indicating whether frame block has transparent color.

  Overrides:

  setTransparentColor in class RasterImage

• getTransparentColor

  public Color getTransparentColor()

  Gets the transparent color of frame block.

  Overrides:

  getTransparentColor in class RasterImage

• setTransparentColor

  public void setTransparentColor(Color value)

  Gets the transparent color of frame block.

  Overrides:

  setTransparentColor in class RasterImage

• adjustBrightness

  public void adjustBrightness(int brightness)

  Adjust of a brightness for image.

  Overrides:

  adjustBrightness in class RasterCachedImage

  Parameters:

  brightness - Brightness value.

• replaceColor

  public void replaceColor(int oldColorArgb,
                           byte oldColorDiff,
                           int newColorArgb)

  Replaces one color to another with allowed difference and preserves original alpha value to save smooth edges.

  Overrides:

  replaceColor in class RasterImage

  Parameters:

  oldColorArgb - Old color ARGB value to be replaced.

  oldColorDiff - Allowed difference in old color to be able to widen replaced color tone.

  newColorArgb - New color ARGB value to replace old color with.

• replaceNonTransparentColors

  public void replaceNonTransparentColors(int newColorArgb)

  Replaces all non-transparent colors with new color and preserves original alpha value to save smooth edges. Note: if you use it on images without transparency, all colors will be replaced with a single one.

  Overrides:

  replaceNonTransparentColors in class RasterImage

  Parameters:

  newColorArgb - New color ARGB value to replace non transparent colors with.