/* ----------------------------------------------------------------- */
///
/// ImageConverter
///
/// <summary>
/// オブジェクトを初期化します。
/// </summary>
///
/// <param name="format">変換後のフォーマット</param>
/// <param name="io">I/O オブジェクト</param>
///
/* ----------------------------------------------------------------- */
public ImageConverter(Format format, IO io) : base(format, io)
{
if (!SupportedFormats.Contains(format))
{
throw new NotSupportedException();
}
}
/// <summary>
/// Process image looking for corners.
/// </summary>
///
/// <param name="image">Source image to process.</param>
///
/// <returns>Returns list of found corners (X-Y coordinates).</returns>
///
/// <exception cref="UnsupportedImageFormatException">The source image has incorrect pixel format.</exception>
///
public new List <IntPoint> ProcessImage(Bitmap image)
{
// check image format
if (!SupportedFormats.Contains(image.PixelFormat))
{
throw new UnsupportedImageFormatException("Unsupported pixel format of the source image.");
}
// lock source image
BitmapData imageData = image.LockBits(ImageLockMode.ReadOnly);
List <IntPoint> corners;
try
{
// process the image
corners = ProcessImage(new UnmanagedImage(imageData));
}
finally
{
// unlock image
image.UnlockBits(imageData);
}
return(corners);
}
/// <summary>
/// Applies the transformation to an input, producing an associated output.
/// </summary>
///
/// <param name="input">The input data to which the transformation should be applied.</param>
///
/// <returns>The output generated by applying this transformation to the given input.</returns>
///
public IEnumerable <TFeature> Transform(Signal input)
{
// check image format
if (!SupportedFormats.Contains(input.SampleFormat))
{
throw new UnsupportedSampleFormatException("Unsupported pixel format of the source image.");
}
return(InnerTransform(input));
}
/// <summary>
/// Process image looking for corners.
/// </summary>
///
/// <param name="input">Source image data to process.</param>
///
/// <returns>Returns list of found corners (X-Y coordinates).</returns>
///
/// <exception cref="UnsupportedImageFormatException">The source image has incorrect pixel format.</exception>
///
public new List <IntPoint> ProcessImage(UnmanagedImage input)
{
// check image format
if (!SupportedFormats.Contains(input.PixelFormat))
{
throw new UnsupportedImageFormatException("Unsupported pixel format of the source image.");
}
return(InnerProcess(input));
}
public DiscordImage Download(DiscordCDNImageFormat format = DiscordCDNImageFormat.Any)
{
if (format != DiscordCDNImageFormat.Any && SupportedFormats != null && !SupportedFormats.Contains(format))
{
throw new NotSupportedException("Image format not supported. Supported formats for this endpoint: " + string.Join(", ", SupportedFormats));
}
string extension = format == DiscordCDNImageFormat.Any ? "" : $".{format.ToString().ToLower()}";
try
{
return(new DiscordImage((Bitmap) new ImageConverter().ConvertFrom(new HttpClient().GetByteArrayAsync(Url + extension).Result)));
}
catch
{
return(null);
}
}
public bool CheckImage(FilePath path)
{
int width, height;
string errorTitle = null;
string errorMessage = null;
using (var type = Pixbuf.GetFileInfo(path, out width, out height))
{
if (type == null)
{
errorTitle = GettextCatalog.GetString("Invalid file selected");
errorMessage = GettextCatalog.GetString("Selected file was not a valid image.");
}
else if (type.IsDisabled)
{
errorTitle = GettextCatalog.GetString("Unsupported image selected");
errorMessage = GettextCatalog.GetString("Support for loading images of type '{0}' has not been enabled.", type.Name);
}
else if (AcceptedSize != Size.Empty && AcceptedSize != new Size(width, height))
{
errorTitle = GettextCatalog.GetString("Incorrect image dimensions");
errorMessage = GettextCatalog.GetString(
"Only images with size {0}x{1} are allowed. Picture was {2}x{3}.",
AcceptedSize.Width, AcceptedSize.Height, width, height);
}
else if (!SupportedFormats.Contains(type.Name))
{
var formats = string.Join(", ", SupportedFormats.Select(f => "'" + f + "'"));
errorTitle = GettextCatalog.GetString("Invalid image selected");
errorMessage = GettextCatalog.GetString("An image of type '{0}' has been selected but you must select an image of type '{1}'.", type.Name, formats);
}
else
{
return(true);
}
LoggingService.LogError("{0}: {1}", errorTitle, errorMessage);
MessageService.ShowError(errorTitle, errorMessage);
return(false);
}
}