private string GetWidthAndHeight(string p_identifier, string p_returnType)
{
try
{
Extractor kdu = new Extractor();
string xmlMetadata = kdu.GetMetadata(p_identifier.EndsWith(".jp2") ? p_identifier : p_identifier + ".jp2");
XmlDocument doc = new XmlDocument();
doc.LoadXml(xmlMetadata);
Metadata data = new Metadata();
data.profile = "http://library.stanford.edu/iiif/image-api/compliance.html#level2";
data.identifier = p_identifier;
data.width = int.Parse(doc.GetElementsByTagName("Width")[0].InnerText);
data.height = int.Parse(doc.GetElementsByTagName("Height")[0].InnerText);
scale_factors scaleFactors = new scale_factors();
for (int i = 0; i < int.Parse(doc.GetElementsByTagName("Jp2levels")[0].InnerText); i++)
{
scaleFactors.Add(Convert.ToInt32(Math.Pow(2, i)));
}
data.scale_factors = scaleFactors;
formats formats = new formats();
formats.Add("jpg");
formats.Add("png");
formats.Add("gif");
data.formats = formats;
qualities qualities = new qualities();
qualities.Add("native");
qualities.Add("grey");
qualities.Add("bitonal");
data.qualities = qualities;
data.tile_width = int.Parse(doc.GetElementsByTagName("TileWidth")[0].InnerText);
data.tile_height = int.Parse(doc.GetElementsByTagName("TileHeight")[0].InnerText);
if (p_returnType.Equals("json"))
{
JavaScriptSerializer serializer = new JavaScriptSerializer();
return(serializer.Serialize(data));
}
else
{
return(getSerializedXML(data));
}
}
catch (Exception e)
{
err = new error();
try
{
err.parameter = "identifier";
XmlDocument doc = new XmlDocument();
doc.LoadXml(e.Message);
err.text = doc.GetElementsByTagName("Message")[0].InnerText;
err.statusCode = System.Net.HttpStatusCode.NotFound;
}
catch
{
err.statusCode = System.Net.HttpStatusCode.BadRequest;
err.parameter = "unknown";
err.text = e.Message;
}
return(getSerializedXML(err));
}
}
private string GetWidthAndHeight(string p_identifier, string p_returnType)
{
try
{
Extractor kdu = new Extractor();
string xmlMetadata = kdu.GetMetadata(p_identifier.EndsWith(".jp2") ? p_identifier : p_identifier + ".jp2");
XmlDocument doc = new XmlDocument();
doc.LoadXml(xmlMetadata);
Metadata data = new Metadata();
data.profile = "http://library.stanford.edu/iiif/image-api/compliance.html#level2";
data.identifier = p_identifier;
data.width = int.Parse(doc.GetElementsByTagName("Width")[0].InnerText);
data.height = int.Parse(doc.GetElementsByTagName("Height")[0].InnerText);
scale_factors scaleFactors = new scale_factors();
for (int i = 0; i < int.Parse(doc.GetElementsByTagName("Jp2levels")[0].InnerText); i++)
{
scaleFactors.Add(Convert.ToInt32(Math.Pow(2, i)));
}
data.scale_factors = scaleFactors;
formats formats = new formats();
formats.Add("jpg");
formats.Add("png");
formats.Add("gif");
data.formats = formats;
qualities qualities = new qualities();
qualities.Add("native");
qualities.Add("grey");
qualities.Add("bitonal");
data.qualities = qualities;
data.tile_width = int.Parse(doc.GetElementsByTagName("TileWidth")[0].InnerText);
data.tile_height = int.Parse(doc.GetElementsByTagName("TileHeight")[0].InnerText);
if (p_returnType.Equals("json"))
{
JavaScriptSerializer serializer = new JavaScriptSerializer();
return serializer.Serialize(data);
}
else
{
return getSerializedXML(data);
}
}
catch (Exception e)
{
err = new error();
try
{
err.parameter = "identifier";
XmlDocument doc = new XmlDocument();
doc.LoadXml(e.Message);
err.text = doc.GetElementsByTagName("Message")[0].InnerText;
err.statusCode = System.Net.HttpStatusCode.NotFound;
}
catch
{
err.statusCode = System.Net.HttpStatusCode.BadRequest;
err.parameter = "unknown";
err.text = e.Message;
}
return getSerializedXML(err);
}
}
private void GetImage(IAsyncResult p_res)
{
ImageRequestState state = (ImageRequestState)p_res.AsyncState;
if (state.err != null)
{
asynch.CompleteCall();
}
else
{
lock (lockobj)
{
try
{
Extractor kdu = new Extractor();
State kdu_state = new State();
kdu_state.File = state.identifier.EndsWith(".jp2") ? state.identifier : state.identifier + ".jp2";
kdu_state.SizeType = state.sizeType;
kdu_state.Size = string.IsNullOrEmpty(state.size) ? 0 : float.Parse(state.size);
kdu_state.Width = string.IsNullOrEmpty(state.width) ? 0 : int.Parse(state.width);
kdu_state.Height = string.IsNullOrEmpty(state.height) ? 0 : int.Parse(state.height);
kdu_state.Region = state.region;
kdu_state.Format = state.format;
kdu_state.Quality = state.quality;
Stream stream = kdu.GetImage(kdu_state);
Image img = Image.FromStream(stream);
if (state.sizeType.Equals("resize"))
{
int sizeWidth = img.Width;
int sizeHeight = img.Height;
if (!string.IsNullOrEmpty(state.width) && !string.IsNullOrEmpty(state.height))
{
sizeWidth = Convert.ToInt32(state.width);
sizeHeight = Convert.ToInt32(state.height);
}
else if (!string.IsNullOrEmpty(state.width))
{
sizeWidth = Convert.ToInt32(state.width);
sizeHeight = (int)(((float)sizeWidth / img.Width) * sizeHeight);
}
else if (!string.IsNullOrEmpty(state.height))
{
sizeHeight = Convert.ToInt32(state.height);
sizeWidth = (int)(((float)sizeHeight / img.Height) * sizeWidth);
}
img = ResizeImage(img, sizeWidth, sizeHeight);
}
else if (state.sizeType.Equals("best"))
{
int sizeWidth = Convert.ToInt32(state.width);
int sizeHeight = Convert.ToInt32(state.height);
double regionWidth = img.Width;
if (!string.IsNullOrEmpty(state.regionWidth))
{
regionWidth = Convert.ToDouble(state.regionWidth);
}
double regionHeight = img.Height;
if (!string.IsNullOrEmpty(state.regionHeight))
{
regionHeight = Convert.ToDouble(state.regionHeight);
}
double scalex = sizeWidth / regionWidth;
double scaley = sizeHeight / regionHeight;
if (scalex < scaley)
{
img = ResizeImage(img, (int)(regionWidth * scalex), (int)(regionHeight * scalex));
}
else
{
img = ResizeImage(img, (int)(regionWidth * scaley), (int)(regionHeight * scaley));
}
}
else if (state.sizeType.Equals("proportion"))
{
double regionWidth = 0;
double regionHeight = 0;
if (state.region.Equals("all"))
{
XmlDocument doc = new XmlDocument();
doc.LoadXml(kdu.GetMetadata(state.identifier.EndsWith(".jp2") ? state.identifier : state.identifier + ".jp2"));
regionWidth = Convert.ToInt32(doc.GetElementsByTagName("Width")[0].InnerText);
regionHeight = Convert.ToInt32(doc.GetElementsByTagName("Height")[0].InnerText);
}
else if (state.region.StartsWith("%"))
{
XmlDocument doc = new XmlDocument();
doc.LoadXml(kdu.GetMetadata(state.identifier.EndsWith(".jp2") ? state.identifier : state.identifier + ".jp2"));
regionWidth = Convert.ToDouble(state.regionWidth) * Convert.ToInt32(doc.GetElementsByTagName("Width")[0].InnerText);
regionHeight = Convert.ToDouble(state.regionHeight) * Convert.ToInt32(doc.GetElementsByTagName("Height")[0].InnerText);
}
else
{
regionWidth = Convert.ToInt32(state.regionWidth);
regionHeight = Convert.ToInt32(state.regionHeight);
}
regionWidth *= Convert.ToDouble(state.size);
regionHeight *= Convert.ToDouble(state.size);
if (regionWidth < 1 || regionHeight < 1)
{
state.err = new error();
state.err.parameter = "region / size";
state.err.text = "Invalid region /size specified";
state.err.statusCode = System.Net.HttpStatusCode.BadRequest;
}
else
{
img = ResizeImage(img, (int)regionWidth, (int)regionHeight);
}
}
if (state.err == null)
{
if (!string.IsNullOrEmpty(state.quality))
{
if (state.quality.Equals("grey"))
{
img = MakeGrayscale(new Bitmap(img));
}
else if (state.quality.Equals("bitonal"))
{
img = MakeBitonal(new Bitmap(img));
}
}
switch (state.rotation)
{
case "90": img.RotateFlip(RotateFlipType.Rotate90FlipNone); break;
case "180": img.RotateFlip(RotateFlipType.Rotate180FlipNone); break;
case "270": img.RotateFlip(RotateFlipType.Rotate270FlipNone); break;
}
_bitmap = new Bitmap(img);
}
}
catch (IIIFException e)
{
state.err = new error();
try
{
XmlDocument doc = new XmlDocument();
doc.LoadXml(e.Message);
if (doc.GetElementsByTagName("Code")[0].InnerText.Contains("i3f_200"))
{
state.err.parameter = "identifier";
state.err.text = doc.GetElementsByTagName("Message")[0].InnerText;
state.err.statusCode = System.Net.HttpStatusCode.NotFound;
}
else if (doc.GetElementsByTagName("Code")[0].InnerText.Contains("i3f_400"))
{
state.err.parameter = "region";
state.err.text = doc.GetElementsByTagName("Message")[0].InnerText;
state.err.statusCode = System.Net.HttpStatusCode.BadRequest;
}
else
{
state.err.parameter = "unknown";
state.err.text = e.Message;
state.err.statusCode = System.Net.HttpStatusCode.BadRequest;
}
}
catch (Exception ex)
{
state.err.parameter = "unknown";
state.err.text = ex.Message;
state.err.statusCode = System.Net.HttpStatusCode.BadRequest;
}
}
catch (Exception e)
{
state.err = new error();
state.err.parameter = "unknown";
state.err.text = e.Message;
state.err.statusCode = System.Net.HttpStatusCode.BadRequest;
}
finally
{
asynch.CompleteCall();
}
}
}
}
private void GetImage(IAsyncResult p_res)
{
ImageRequestState state = (ImageRequestState)p_res.AsyncState;
if (state.err != null)
{
asynch.CompleteCall();
}
else {
lock (lockobj)
{
try
{
Extractor kdu = new Extractor();
State kdu_state = new State();
kdu_state.File = state.identifier.EndsWith(".jp2") ? state.identifier : state.identifier + ".jp2";
kdu_state.SizeType = state.sizeType;
kdu_state.Size = string.IsNullOrEmpty(state.size) ? 0 : float.Parse(state.size);
kdu_state.Width = string.IsNullOrEmpty(state.width) ? 0 : int.Parse(state.width);
kdu_state.Height = string.IsNullOrEmpty(state.height) ? 0 : int.Parse(state.height);
kdu_state.Region = state.region;
kdu_state.Format = state.format;
kdu_state.Quality = state.quality;
Stream stream = kdu.GetImage(kdu_state);
Image img = Image.FromStream(stream);
if (state.sizeType.Equals("resize"))
{
int sizeWidth = img.Width;
int sizeHeight = img.Height;
if (!string.IsNullOrEmpty(state.width) && !string.IsNullOrEmpty(state.height))
{
sizeWidth = Convert.ToInt32(state.width);
sizeHeight = Convert.ToInt32(state.height);
}
else if (!string.IsNullOrEmpty(state.width))
{
sizeWidth = Convert.ToInt32(state.width);
sizeHeight = (int)(((float)sizeWidth / img.Width) * sizeHeight);
}
else if (!string.IsNullOrEmpty(state.height))
{
sizeHeight = Convert.ToInt32(state.height);
sizeWidth = (int)(((float)sizeHeight / img.Height) * sizeWidth);
}
img = ResizeImage(img, sizeWidth, sizeHeight);
}
else if (state.sizeType.Equals("best"))
{
int sizeWidth = Convert.ToInt32(state.width);
int sizeHeight = Convert.ToInt32(state.height);
double regionWidth = img.Width;
if (!string.IsNullOrEmpty(state.regionWidth))
regionWidth = Convert.ToDouble(state.regionWidth);
double regionHeight = img.Height;
if (!string.IsNullOrEmpty(state.regionHeight))
regionHeight = Convert.ToDouble(state.regionHeight);
double scalex = sizeWidth / regionWidth;
double scaley = sizeHeight / regionHeight;
if (scalex < scaley)
img = ResizeImage(img, (int)(regionWidth * scalex), (int)(regionHeight * scalex));
else
img = ResizeImage(img, (int)(regionWidth * scaley), (int)(regionHeight * scaley));
}
else if (state.sizeType.Equals("proportion"))
{
double regionWidth = 0;
double regionHeight = 0;
if (state.region.Equals("all"))
{
XmlDocument doc = new XmlDocument();
doc.LoadXml(kdu.GetMetadata(state.identifier.EndsWith(".jp2") ? state.identifier : state.identifier + ".jp2"));
regionWidth = Convert.ToInt32(doc.GetElementsByTagName("Width")[0].InnerText);
regionHeight = Convert.ToInt32(doc.GetElementsByTagName("Height")[0].InnerText);
}
else if (state.region.StartsWith("%"))
{
XmlDocument doc = new XmlDocument();
doc.LoadXml(kdu.GetMetadata(state.identifier.EndsWith(".jp2") ? state.identifier : state.identifier + ".jp2"));
regionWidth = Convert.ToDouble(state.regionWidth) * Convert.ToInt32(doc.GetElementsByTagName("Width")[0].InnerText);
regionHeight = Convert.ToDouble(state.regionHeight) * Convert.ToInt32(doc.GetElementsByTagName("Height")[0].InnerText);
}
else
{
regionWidth = Convert.ToInt32(state.regionWidth);
regionHeight = Convert.ToInt32(state.regionHeight);
}
regionWidth *= Convert.ToDouble(state.size);
regionHeight *= Convert.ToDouble(state.size);
if (regionWidth < 1 || regionHeight < 1)
{
state.err = new error();
state.err.parameter = "region / size";
state.err.text = "Invalid region /size specified";
state.err.statusCode = System.Net.HttpStatusCode.BadRequest;
}
else
{
img = ResizeImage(img, (int)regionWidth, (int)regionHeight);
}
}
if (state.err == null)
{
if (!string.IsNullOrEmpty(state.quality))
{
if (state.quality.Equals("grey"))
img = MakeGrayscale(new Bitmap(img));
else if (state.quality.Equals("bitonal"))
img = MakeBitonal(new Bitmap(img));
}
switch (state.rotation)
{
case "90": img.RotateFlip(RotateFlipType.Rotate90FlipNone); break;
case "180": img.RotateFlip(RotateFlipType.Rotate180FlipNone); break;
case "270": img.RotateFlip(RotateFlipType.Rotate270FlipNone); break;
}
_bitmap = new Bitmap(img);
}
}
catch (IIIFException e)
{
state.err = new error();
try
{
XmlDocument doc = new XmlDocument();
doc.LoadXml(e.Message);
if (doc.GetElementsByTagName("Code")[0].InnerText.Contains("i3f_200"))
{
state.err.parameter = "identifier";
state.err.text = doc.GetElementsByTagName("Message")[0].InnerText;
state.err.statusCode = System.Net.HttpStatusCode.NotFound;
}
else if (doc.GetElementsByTagName("Code")[0].InnerText.Contains("i3f_400"))
{
state.err.parameter = "region";
state.err.text = doc.GetElementsByTagName("Message")[0].InnerText;
state.err.statusCode = System.Net.HttpStatusCode.BadRequest;
}
else
{
state.err.parameter = "unknown";
state.err.text = e.Message;
state.err.statusCode = System.Net.HttpStatusCode.BadRequest;
}
}
catch (Exception ex)
{
state.err.parameter = "unknown";
state.err.text = ex.Message;
state.err.statusCode = System.Net.HttpStatusCode.BadRequest;
}
}
catch (Exception e)
{
state.err = new error();
state.err.parameter = "unknown";
state.err.text = e.Message;
state.err.statusCode = System.Net.HttpStatusCode.BadRequest;
}
finally
{
asynch.CompleteCall();
}
}
}
}
