/// <summary>Returns <c>List</c> of gif image frames</summary>
/// <param name="url">url of gif image</param>
/// <returns>all frames of gif image</returns>
public static IList <ImageData> CreateGifFrames(Uri url)
{
ValidateImageType(url, ImageType.GIF);
GifImageData image = new GifImageData(url);
GifImageHelper.ProcessImage(image);
return(image.GetFrames());
}
/// <summary>Returns <c>List</c> of gif image frames</summary>
/// <param name="bytes">byte array of gif image</param>
/// <returns>all frames of gif image</returns>
public static IList <ImageData> CreateGifFrames(byte[] bytes)
{
ValidateImageType(bytes, ImageType.GIF);
GifImageData image = new GifImageData(bytes);
GifImageHelper.ProcessImage(image);
return(image.GetFrames());
}
/// <summary>Return a GifImage object.</summary>
/// <remarks>Return a GifImage object. This object cannot be added to a document</remarks>
/// <param name="bytes">array containing the raw image data</param>
/// <returns>GifImageData instance.</returns>
public static GifImageData CreateGif(byte[] bytes)
{
ValidateImageType(bytes, ImageType.GIF);
GifImageData image = new GifImageData(bytes);
GifImageHelper.ProcessImage(image);
return(image);
}
/// <summary>Returns <CODE>List</CODE> of gif image frames</summary>
/// <param name="url">url of gif image</param>
/// <returns>all frames of gif image</returns>
public static IList <ImageData> CreateGifFrames(Uri url)
{
byte[] imageType = ReadImageType(url);
if (ImageTypeIs(imageType, gif))
{
GifImageData image = new GifImageData(url);
GifImageHelper.ProcessImage(image);
return(image.GetFrames());
}
throw new ArgumentException("GIF image expected.");
}
/// <summary>Returns a specified frame of the gif image</summary>
/// <param name="bytes">byte array of gif image</param>
/// <param name="frame">number of frame to be returned</param>
/// <returns>GifImageData instance.</returns>
public static ImageData CreateGifFrame(byte[] bytes, int frame)
{
byte[] imageType = ReadImageType(bytes);
if (ImageTypeIs(imageType, gif))
{
GifImageData image = new GifImageData(bytes);
GifImageHelper.ProcessImage(image, frame - 1);
return(image.GetFrames()[frame - 1]);
}
throw new ArgumentException("GIF image expected.");
}
/// <summary>Return a GifImage object.</summary>
/// <remarks>Return a GifImage object. This object cannot be added to a document</remarks>
/// <param name="bytes">array containing the raw image data</param>
/// <returns>GifImageData instance.</returns>
public static GifImageData CreateGif(byte[] bytes)
{
byte[] imageType = ReadImageType(bytes);
if (ImageTypeIs(imageType, gif))
{
GifImageData image = new GifImageData(bytes);
GifImageHelper.ProcessImage(image);
return(image);
}
throw new ArgumentException("GIF image expected.");
}
private static IList <ImageData> ProcessGifImageAndExtractFrames(int[] frameNumbers, GifImageData image)
{
JavaUtil.Sort(frameNumbers);
GifImageHelper.ProcessImage(image, frameNumbers[frameNumbers.Length - 1] - 1);
IList <ImageData> frames = new List <ImageData>();
foreach (int frame in frameNumbers)
{
frames.Add(image.GetFrames()[frame - 1]);
}
return(frames);
}
private static ImageData CreateImageInstance(byte[] bytes, bool recoverImage)
{
ImageType imageType = ImageTypeDetector.DetectImageType(bytes);
switch (imageType)
{
case ImageType.GIF: {
GifImageData image = new GifImageData(bytes);
GifImageHelper.ProcessImage(image, 0);
return(image.GetFrames()[0]);
}
case ImageType.JPEG: {
ImageData image = new JpegImageData(bytes);
JpegImageHelper.ProcessImage(image);
return(image);
}
case ImageType.JPEG2000: {
ImageData image = new Jpeg2000ImageData(bytes);
Jpeg2000ImageHelper.ProcessImage(image);
return(image);
}
case ImageType.PNG: {
ImageData image = new PngImageData(bytes);
PngImageHelper.ProcessImage(image);
return(image);
}
case ImageType.BMP: {
ImageData image = new BmpImageData(bytes, false);
BmpImageHelper.ProcessImage(image);
return(image);
}
case ImageType.TIFF: {
ImageData image = new TiffImageData(bytes, recoverImage, 1, false);
TiffImageHelper.ProcessImage(image);
return(image);
}
case ImageType.JBIG2: {
ImageData image = new Jbig2ImageData(bytes, 1);
Jbig2ImageHelper.ProcessImage(image);
return(image);
}
default: {
throw new iText.IO.IOException(iText.IO.IOException.ImageFormatCannotBeRecognized);
}
}
}
/// <summary>Returns <CODE>List</CODE> of gif image frames</summary>
/// <param name="url">url of gif image</param>
/// <param name="frameNumbers">array of frame numbers of gif image</param>
/// <returns>All frames of gif image.</returns>
public static IList <ImageData> CreateGifFrames(Uri url, int[] frameNumbers)
{
byte[] imageType = ReadImageType(url);
if (ImageTypeIs(imageType, gif))
{
GifImageData image = new GifImageData(url);
iText.IO.Util.JavaUtil.Sort(frameNumbers);
GifImageHelper.ProcessImage(image, frameNumbers[frameNumbers.Length - 1] - 1);
IList <ImageData> frames = new List <ImageData>();
foreach (int frame in frameNumbers)
{
frames.Add(image.GetFrames()[frame - 1]);
}
return(frames);
}
throw new ArgumentException("GIF image expected.");
}
private static ImageData CreateImageInstance(byte[] bytes, bool recoverImage)
{
byte[] imageType = ReadImageType(bytes);
if (ImageTypeIs(imageType, gif))
{
GifImageData image = new GifImageData(bytes);
GifImageHelper.ProcessImage(image, 0);
return(image.GetFrames()[0]);
}
else
{
if (ImageTypeIs(imageType, jpeg))
{
ImageData image = new JpegImageData(bytes);
JpegImageHelper.ProcessImage(image);
return(image);
}
else
{
if (ImageTypeIs(imageType, jpeg2000_1) || ImageTypeIs(imageType, jpeg2000_2))
{
ImageData image = new Jpeg2000ImageData(bytes);
Jpeg2000ImageHelper.ProcessImage(image);
return(image);
}
else
{
if (ImageTypeIs(imageType, png))
{
ImageData image = new PngImageData(bytes);
PngImageHelper.ProcessImage(image);
return(image);
}
else
{
if (ImageTypeIs(imageType, bmp))
{
ImageData image = new BmpImageData(bytes, false, 0);
BmpImageHelper.ProcessImage(image);
return(image);
}
else
{
if (ImageTypeIs(imageType, tiff_1) || ImageTypeIs(imageType, tiff_2))
{
ImageData image = new TiffImageData(bytes, recoverImage, 1, false);
TiffImageHelper.ProcessImage(image);
return(image);
}
else
{
if (ImageTypeIs(imageType, jbig2))
{
ImageData image = new Jbig2ImageData(bytes, 1);
Jbig2ImageHelper.ProcessImage(image);
return(image);
}
}
}
}
}
}
}
throw new iText.IO.IOException(iText.IO.IOException.ImageFormatCannotBeRecognized);
}
