public virtual void TestGetReciprocal()
{
Rational rational = new Rational(1, 3);
Rational reciprocal = rational.GetReciprocal();
Sharpen.Tests.AreEqual("new rational should be reciprocal", new Rational(3, 1), reciprocal);
Sharpen.Tests.AreEqual("original reciprocal should remain unchanged", new Rational(1, 3), rational);
}
public virtual void TestCreateRational()
{
Rational rational = new Rational(1, 3);
Sharpen.Tests.AreEqual(1, rational.GetNumerator());
Sharpen.Tests.AreEqual(3, rational.GetDenominator());
Sharpen.Tests.AreEqual(1d / 3d, rational.DoubleValue(), 0.0001);
}
public virtual void TestToSimpleString()
{
Rational third1 = new Rational(1, 3);
Rational third2 = new Rational(2, 6);
Sharpen.Tests.AreEqual("1/3", third1.ToSimpleString(true));
Sharpen.Tests.AreEqual("1/3", third2.ToSimpleString(true));
Sharpen.Tests.AreEqual(third1, third2);
Rational twoThirds = new Rational(10, 15);
Sharpen.Tests.AreEqual("2/3", twoThirds.ToSimpleString(true));
Rational two = new Rational(10, 5);
Sharpen.Tests.IsTrue(two.IsInteger());
Sharpen.Tests.AreEqual("2", two.ToSimpleString(true));
Sharpen.Tests.AreEqual("2", two.ToSimpleString(false));
Rational twoFifths = new Rational(4, 10);
Sharpen.Tests.AreEqual("0.4", twoFifths.ToSimpleString(true));
Sharpen.Tests.AreEqual("2/5", twoFifths.ToSimpleString(false));
Rational threeEigths = new Rational(3, 8);
Sharpen.Tests.AreEqual("3/8", threeEigths.ToSimpleString(true));
Rational zero = new Rational(0, 8);
Sharpen.Tests.IsTrue(zero.IsInteger());
Sharpen.Tests.AreEqual("0", zero.ToSimpleString(true));
Sharpen.Tests.AreEqual("0", zero.ToSimpleString(false));
zero = new Rational(0, 0);
Sharpen.Tests.IsTrue(zero.IsInteger());
Sharpen.Tests.AreEqual("0", zero.ToSimpleString(true));
Sharpen.Tests.AreEqual("0", zero.ToSimpleString(false));
}
private static void ProcessTag(Com.Drew.Metadata.Directory directory, int tagType, int tagValueOffset, int componentCount, int formatCode, RandomAccessReader reader)
{
switch (formatCode)
{
case FmtUndefined:
{
// Directory simply stores raw values
// The display side uses a Descriptor class per directory to turn the raw values into 'pretty' descriptions
// this includes exif user comments
directory.SetByteArray(tagType, reader.GetBytes(tagValueOffset, componentCount));
break;
}
case FmtString:
{
string @string = reader.GetNullTerminatedString(tagValueOffset, componentCount);
directory.SetString(tagType, @string);
break;
}
case FmtSrational:
{
if (componentCount == 1)
{
directory.SetRational(tagType, new Rational(reader.GetInt32(tagValueOffset), reader.GetInt32(tagValueOffset + 4)));
}
else
{
if (componentCount > 1)
{
Rational[] rationals = new Rational[componentCount];
for (int i = 0; i < componentCount; i++)
{
rationals[i] = new Rational(reader.GetInt32(tagValueOffset + (8 * i)), reader.GetInt32(tagValueOffset + 4 + (8 * i)));
}
directory.SetRationalArray(tagType, rationals);
}
}
break;
}
case FmtUrational:
{
if (componentCount == 1)
{
directory.SetRational(tagType, new Rational(reader.GetUInt32(tagValueOffset), reader.GetUInt32(tagValueOffset + 4)));
}
else
{
if (componentCount > 1)
{
Rational[] rationals = new Rational[componentCount];
for (int i = 0; i < componentCount; i++)
{
rationals[i] = new Rational(reader.GetUInt32(tagValueOffset + (8 * i)), reader.GetUInt32(tagValueOffset + 4 + (8 * i)));
}
directory.SetRationalArray(tagType, rationals);
}
}
break;
}
case FmtSingle:
{
if (componentCount == 1)
{
directory.SetFloat(tagType, reader.GetFloat32(tagValueOffset));
}
else
{
float[] floats = new float[componentCount];
for (int i = 0; i < componentCount; i++)
{
floats[i] = reader.GetFloat32(tagValueOffset + (i * 4));
}
directory.SetFloatArray(tagType, floats);
}
break;
}
case FmtDouble:
{
if (componentCount == 1)
{
directory.SetDouble(tagType, reader.GetDouble64(tagValueOffset));
}
else
{
double[] doubles = new double[componentCount];
for (int i = 0; i < componentCount; i++)
{
doubles[i] = reader.GetDouble64(tagValueOffset + (i * 4));
}
directory.SetDoubleArray(tagType, doubles);
}
break;
}
case FmtSbyte:
{
//
// Note that all integral types are stored as int32 internally (the largest supported by TIFF)
//
if (componentCount == 1)
{
directory.SetInt(tagType, reader.GetInt8(tagValueOffset));
}
else
{
int[] bytes = new int[componentCount];
for (int i = 0; i < componentCount; i++)
{
bytes[i] = reader.GetInt8(tagValueOffset + i);
}
directory.SetIntArray(tagType, bytes);
}
break;
}
case FmtByte:
{
if (componentCount == 1)
{
directory.SetInt(tagType, reader.GetUInt8(tagValueOffset));
}
else
{
int[] bytes = new int[componentCount];
for (int i = 0; i < componentCount; i++)
{
bytes[i] = reader.GetUInt8(tagValueOffset + i);
}
directory.SetIntArray(tagType, bytes);
}
break;
}
case FmtUshort:
{
if (componentCount == 1)
{
int i = reader.GetUInt16(tagValueOffset);
directory.SetInt(tagType, i);
}
else
{
int[] ints = new int[componentCount];
for (int i = 0; i < componentCount; i++)
{
ints[i] = reader.GetUInt16(tagValueOffset + (i * 2));
}
directory.SetIntArray(tagType, ints);
}
break;
}
case FmtSshort:
{
if (componentCount == 1)
{
int i = reader.GetInt16(tagValueOffset);
directory.SetInt(tagType, i);
}
else
{
int[] ints = new int[componentCount];
for (int i = 0; i < componentCount; i++)
{
ints[i] = reader.GetInt16(tagValueOffset + (i * 2));
}
directory.SetIntArray(tagType, ints);
}
break;
}
case FmtSlong:
case FmtUlong:
{
// NOTE 'long' in this case means 32 bit, not 64
if (componentCount == 1)
{
int i = reader.GetInt32(tagValueOffset);
directory.SetInt(tagType, i);
}
else
{
int[] ints = new int[componentCount];
for (int i = 0; i < componentCount; i++)
{
ints[i] = reader.GetInt32(tagValueOffset + (i * 4));
}
directory.SetIntArray(tagType, ints);
}
break;
}
default:
{
directory.AddError("Unknown format code " + formatCode + " for tag " + tagType);
break;
}
}
}
public virtual void TestToString()
{
Rational rational = new Rational(1, 3);
Sharpen.Tests.AreEqual("1/3", rational.ToString());
}
/// <exception cref="System.IO.IOException"/>
private static void ProcessTag([NotNull] TiffHandler handler, int tagId, int tagValueOffset, int componentCount, int formatCode, [NotNull] RandomAccessReader reader)
{
switch (formatCode)
{
case TiffDataFormat.CodeUndefined:
{
// this includes exif user comments
handler.SetByteArray(tagId, reader.GetBytes(tagValueOffset, componentCount));
break;
}
case TiffDataFormat.CodeString:
{
handler.SetString(tagId, reader.GetNullTerminatedString(tagValueOffset, componentCount));
break;
}
case TiffDataFormat.CodeRationalS:
{
if (componentCount == 1)
{
handler.SetRational(tagId, new Rational(reader.GetInt32(tagValueOffset), reader.GetInt32(tagValueOffset + 4)));
}
else
{
if (componentCount > 1)
{
Rational[] array = new Rational[componentCount];
for (int i = 0; i < componentCount; i++)
{
array[i] = new Rational(reader.GetInt32(tagValueOffset + (8 * i)), reader.GetInt32(tagValueOffset + 4 + (8 * i)));
}
handler.SetRationalArray(tagId, array);
}
}
break;
}
case TiffDataFormat.CodeRationalU:
{
if (componentCount == 1)
{
handler.SetRational(tagId, new Rational(reader.GetUInt32(tagValueOffset), reader.GetUInt32(tagValueOffset + 4)));
}
else
{
if (componentCount > 1)
{
Rational[] array = new Rational[componentCount];
for (int i = 0; i < componentCount; i++)
{
array[i] = new Rational(reader.GetUInt32(tagValueOffset + (8 * i)), reader.GetUInt32(tagValueOffset + 4 + (8 * i)));
}
handler.SetRationalArray(tagId, array);
}
}
break;
}
case TiffDataFormat.CodeSingle:
{
if (componentCount == 1)
{
handler.SetFloat(tagId, reader.GetFloat32(tagValueOffset));
}
else
{
float[] array = new float[componentCount];
for (int i = 0; i < componentCount; i++)
{
array[i] = reader.GetFloat32(tagValueOffset + (i * 4));
}
handler.SetFloatArray(tagId, array);
}
break;
}
case TiffDataFormat.CodeDouble:
{
if (componentCount == 1)
{
handler.SetDouble(tagId, reader.GetDouble64(tagValueOffset));
}
else
{
double[] array = new double[componentCount];
for (int i = 0; i < componentCount; i++)
{
array[i] = reader.GetDouble64(tagValueOffset + (i * 4));
}
handler.SetDoubleArray(tagId, array);
}
break;
}
case TiffDataFormat.CodeInt8S:
{
if (componentCount == 1)
{
handler.SetInt8s(tagId, reader.GetInt8(tagValueOffset));
}
else
{
sbyte[] array = new sbyte[componentCount];
for (int i = 0; i < componentCount; i++)
{
array[i] = reader.GetInt8(tagValueOffset + i);
}
handler.SetInt8sArray(tagId, array);
}
break;
}
case TiffDataFormat.CodeInt8U:
{
if (componentCount == 1)
{
handler.SetInt8u(tagId, reader.GetUInt8(tagValueOffset));
}
else
{
short[] array = new short[componentCount];
for (int i = 0; i < componentCount; i++)
{
array[i] = reader.GetUInt8(tagValueOffset + i);
}
handler.SetInt8uArray(tagId, array);
}
break;
}
case TiffDataFormat.CodeInt16S:
{
if (componentCount == 1)
{
handler.SetInt16s(tagId, (int)reader.GetInt16(tagValueOffset));
}
else
{
short[] array = new short[componentCount];
for (int i = 0; i < componentCount; i++)
{
array[i] = reader.GetInt16(tagValueOffset + (i * 2));
}
handler.SetInt16sArray(tagId, array);
}
break;
}
case TiffDataFormat.CodeInt16U:
{
if (componentCount == 1)
{
handler.SetInt16u(tagId, reader.GetUInt16(tagValueOffset));
}
else
{
int[] array = new int[componentCount];
for (int i = 0; i < componentCount; i++)
{
array[i] = reader.GetUInt16(tagValueOffset + (i * 2));
}
handler.SetInt16uArray(tagId, array);
}
break;
}
case TiffDataFormat.CodeInt32S:
{
// NOTE 'long' in this case means 32 bit, not 64
if (componentCount == 1)
{
handler.SetInt32s(tagId, reader.GetInt32(tagValueOffset));
}
else
{
int[] array = new int[componentCount];
for (int i = 0; i < componentCount; i++)
{
array[i] = reader.GetInt32(tagValueOffset + (i * 4));
}
handler.SetInt32sArray(tagId, array);
}
break;
}
case TiffDataFormat.CodeInt32U:
{
// NOTE 'long' in this case means 32 bit, not 64
if (componentCount == 1)
{
handler.SetInt32u(tagId, reader.GetUInt32(tagValueOffset));
}
else
{
long[] array = new long[componentCount];
for (int i = 0; i < componentCount; i++)
{
array[i] = reader.GetUInt32(tagValueOffset + (i * 4));
}
handler.SetInt32uArray(tagId, array);
}
break;
}
default:
{
handler.Error(Sharpen.Extensions.StringFormat("Unknown format code %d for tag %d", formatCode, tagId));
break;
}
}
}
/// <summary>Sets a <code>Rational</code> value for the specified tag.</summary>
/// <param name="tagType">the tag's value as an int</param>
/// <param name="rational">rational number</param>
public virtual void SetRational(int tagType, Rational rational)
{
SetObject(tagType, rational);
}
/// <summary>Sets a <code>Rational[]</code> (array) for the specified tag.</summary>
/// <param name="tagType">the tag identifier</param>
/// <param name="rationals">the Rational array to store</param>
public virtual void SetRationalArray(int tagType, Rational[] rationals)
{
SetObjectArray(tagType, rationals);
}
public virtual void TestToString()
{
Rational rational = new Rational(1, 3);
Sharpen.Tests.AreEqual("1/3", Sharpen.Extensions.ConvertToString(rational));
}
/// <summary>Reads an property value with given namespace URI and property name.</summary>
/// <remarks>Reads an property value with given namespace URI and property name. Add property value to directory if exists</remarks>
/// <exception cref="Com.Adobe.Xmp.XMPException"/>
private static void ProcessXmpTag([NotNull] XMPMeta meta, [NotNull] XmpDirectory directory, int tagType, int formatCode)
{
string schemaNS = XmpDirectory._tagSchemaMap.Get(tagType);
string propName = XmpDirectory._tagPropNameMap.Get(tagType);
string property = meta.GetPropertyString(schemaNS, propName);
if (property == null)
{
return;
}
switch (formatCode)
{
case FmtRational:
{
string[] rationalParts = property.Split("/", 2);
if (rationalParts.Length == 2)
{
try
{
Rational rational = new Rational((long)float.Parse(rationalParts[0]), (long)float.Parse(rationalParts[1]));
directory.SetRational(tagType, rational);
}
catch (FormatException)
{
directory.AddError(Sharpen.Extensions.StringFormat("Unable to parse XMP property %s as a Rational.", propName));
}
}
else
{
directory.AddError("Error in rational format for tag " + tagType);
}
break;
}
case FmtInt:
{
try
{
directory.SetInt(tagType, (int)Sharpen.Extensions.ValueOf(property));
}
catch (FormatException)
{
directory.AddError(Sharpen.Extensions.StringFormat("Unable to parse XMP property %s as an int.", propName));
}
break;
}
case FmtDouble:
{
try
{
directory.SetDouble(tagType, (double)double.Parse(property));
}
catch (FormatException)
{
directory.AddError(Sharpen.Extensions.StringFormat("Unable to parse XMP property %s as an double.", propName));
}
break;
}
case FmtString:
{
directory.SetString(tagType, property);
break;
}
case FmtStringArray:
{
//XMP iterators are 1-based
int count = meta.CountArrayItems(schemaNS, propName);
string[] array = new string[count];
for (int i = 1; i <= count; ++i)
{
array[i - 1] = meta.GetArrayItem(schemaNS, propName, i).GetValue();
}
directory.SetStringArray(tagType, array);
break;
}
default:
{
directory.AddError(Sharpen.Extensions.StringFormat("Unknown format code %d for tag %d", formatCode, tagType));
break;
}
}
}
public static double? DegreesMinutesSecondsToDecimal(Rational degs, Rational mins, Rational secs, bool isNegative)
{
double @decimal = Math.Abs(degs.DoubleValue()) + mins.DoubleValue() / 60.0d + secs.DoubleValue() / 3600.0d;
if (double.IsNaN(@decimal))
{
return null;
}
if (isNegative)
{
@decimal *= -1;
}
return @decimal;
}
/// <summary>Reads an property value with given namespace URI and property name.</summary>
/// <remarks>Reads an property value with given namespace URI and property name. Add property value to directory if exists</remarks>
/// <exception cref="Com.Adobe.Xmp.XMPException"/>
private void ProcessXmpTag(XMPMeta meta, XmpDirectory directory, string schemaNS, string propName, int tagType, int formatCode)
{
string property = meta.GetPropertyString(schemaNS, propName);
if (property == null)
{
return;
}
switch (formatCode)
{
case FmtRational:
{
string[] rationalParts = property.Split("/", 2);
if (rationalParts.Length == 2)
{
try
{
Rational rational = new Rational((long)float.Parse(rationalParts[0]), (long)float.Parse(rationalParts[1]));
directory.SetRational(tagType, rational);
}
catch (FormatException)
{
directory.AddError(Sharpen.Extensions.StringFormat("Unable to parse XMP property %s as a Rational.", propName));
}
}
else
{
directory.AddError("Error in rational format for tag " + tagType);
}
break;
}
case FmtInt:
{
try
{
directory.SetInt(tagType, Sharpen.Extensions.ValueOf(property));
}
catch (FormatException)
{
directory.AddError(Sharpen.Extensions.StringFormat("Unable to parse XMP property %s as an int.", propName));
}
break;
}
case FmtDouble:
{
try
{
directory.SetDouble(tagType, double.Parse(property));
}
catch (FormatException)
{
directory.AddError(Sharpen.Extensions.StringFormat("Unable to parse XMP property %s as an double.", propName));
}
break;
}
case FmtString:
{
directory.SetString(tagType, property);
break;
}
default:
{
directory.AddError(Sharpen.Extensions.StringFormat("Unknown format code %d for tag %d", formatCode, tagType));
break;
}
}
}
public virtual void TestToString()
{
Rational rational = new Rational(1, 3);
Sharpen.Tests.AreEqual("1/3", rational.ToString());
}
