| public static IfTrue ( string paramName, bool condition, string message ) : void | ||
| paramName | string | |
| condition | bool | |
| message | string | |
| return | void | |
private void CheckValue(object value)
{
if (value == null)
{
return;
}
Type type = value.GetType();
if (DataType == ExifDataType.Ascii)
{
Throw.IfFalse(nameof(value), type == typeof(string), "Value should be a string.");
return;
}
if (type.IsArray)
{
Throw.IfTrue(nameof(value), !IsArray, "Value should not be an array.");
type = type.GetElementType();
}
else
{
Throw.IfTrue(nameof(value), IsArray, "Value should be an array.");
}
switch (DataType)
{
case ExifDataType.Byte:
Throw.IfFalse(nameof(value), type == typeof(byte), "Value should be a byte{0}", IsArray ? " array." : ".");
break;
case ExifDataType.DoubleFloat:
Throw.IfFalse(nameof(value), type == typeof(double), "Value should be a double{0}", IsArray ? " array." : ".");
break;
case ExifDataType.Long:
Throw.IfFalse(nameof(value), type == typeof(uint), "Value should be an unsigned int{0}", IsArray ? " array." : ".");
break;
case ExifDataType.Rational:
Throw.IfFalse(nameof(value), type == typeof(Rational), "Value should be a rational{0}", IsArray ? " array." : ".");
break;
case ExifDataType.Short:
Throw.IfFalse(nameof(value), type == typeof(ushort), "Value should be an unsigned short{0}", IsArray ? " array." : ".");
break;
case ExifDataType.SignedByte:
Throw.IfFalse(nameof(value), type == typeof(sbyte), "Value should be a signed byte{0}", IsArray ? " array." : ".");
break;
case ExifDataType.SignedLong:
Throw.IfFalse(nameof(value), type == typeof(int), "Value should be an int{0}", IsArray ? " array." : ".");
break;
case ExifDataType.SignedRational:
Throw.IfFalse(nameof(value), type == typeof(SignedRational), "Value should be a signed rational{0}", IsArray ? " array." : ".");
break;
case ExifDataType.SignedShort:
Throw.IfFalse(nameof(value), type == typeof(short), "Value should be a short{0}", IsArray ? " array." : ".");
break;
case ExifDataType.SingleFloat:
Throw.IfFalse(nameof(value), type == typeof(float), "Value should be a float{0}", IsArray ? " array." : ".");
break;
case ExifDataType.Undefined:
Throw.IfFalse(nameof(value), type == typeof(byte), "Value should be a byte array.");
break;
default:
throw new NotSupportedException();
}
}
private static void CheckChannels(int channels)
{
Throw.IfTrue(nameof(channels), channels < 1 || channels > 5, "Invalid number of channels (supported sizes are 1-5).");
}
internal static ExifValue Create(ExifTag tag, object value)
{
Throw.IfTrue(nameof(tag), tag == ExifTag.Unknown, "Invalid Tag");
ExifValue exifValue = null;
Type type = value != null?value.GetType() : null;
if (type != null && type.IsArray)
{
type = type.GetElementType();
}
switch (tag)
{
case ExifTag.ImageDescription:
case ExifTag.Make:
case ExifTag.Model:
case ExifTag.Software:
case ExifTag.DateTime:
case ExifTag.Artist:
case ExifTag.HostComputer:
case ExifTag.Copyright:
case ExifTag.DocumentName:
case ExifTag.PageName:
case ExifTag.InkNames:
case ExifTag.TargetPrinter:
case ExifTag.ImageID:
case ExifTag.MDLabName:
case ExifTag.MDSampleInfo:
case ExifTag.MDPrepDate:
case ExifTag.MDPrepTime:
case ExifTag.MDFileUnits:
case ExifTag.SEMInfo:
case ExifTag.SpectralSensitivity:
case ExifTag.DateTimeOriginal:
case ExifTag.DateTimeDigitized:
case ExifTag.SubsecTime:
case ExifTag.SubsecTimeOriginal:
case ExifTag.SubsecTimeDigitized:
case ExifTag.RelatedSoundFile:
case ExifTag.FaxSubaddress:
case ExifTag.OffsetTime:
case ExifTag.OffsetTimeOriginal:
case ExifTag.OffsetTimeDigitized:
case ExifTag.SecurityClassification:
case ExifTag.ImageHistory:
case ExifTag.ImageUniqueID:
case ExifTag.OwnerName:
case ExifTag.SerialNumber:
case ExifTag.LensMake:
case ExifTag.LensModel:
case ExifTag.LensSerialNumber:
case ExifTag.GDALMetadata:
case ExifTag.GDALNoData:
case ExifTag.GPSLatitudeRef:
case ExifTag.GPSLongitudeRef:
case ExifTag.GPSSatellites:
case ExifTag.GPSStatus:
case ExifTag.GPSMeasureMode:
case ExifTag.GPSSpeedRef:
case ExifTag.GPSTrackRef:
case ExifTag.GPSImgDirectionRef:
case ExifTag.GPSMapDatum:
case ExifTag.GPSDestLatitudeRef:
case ExifTag.GPSDestLongitudeRef:
case ExifTag.GPSDestBearingRef:
case ExifTag.GPSDestDistanceRef:
case ExifTag.GPSDateStamp:
exifValue = new ExifValue(tag, ExifDataType.Ascii, true);
break;
case ExifTag.ClipPath:
case ExifTag.VersionYear:
case ExifTag.XMP:
case ExifTag.CFAPattern2:
case ExifTag.TIFFEPStandardID:
case ExifTag.XPTitle:
case ExifTag.XPComment:
case ExifTag.XPAuthor:
case ExifTag.XPKeywords:
case ExifTag.XPSubject:
case ExifTag.GPSVersionID:
exifValue = new ExifValue(tag, ExifDataType.Byte, true);
break;
case ExifTag.FaxProfile:
case ExifTag.ModeNumber:
case ExifTag.GPSAltitudeRef:
exifValue = new ExifValue(tag, ExifDataType.Byte, false);
break;
case ExifTag.FreeOffsets:
case ExifTag.FreeByteCounts:
case ExifTag.ColorResponseUnit:
case ExifTag.TileOffsets:
case ExifTag.SMinSampleValue:
case ExifTag.SMaxSampleValue:
case ExifTag.JPEGQTables:
case ExifTag.JPEGDCTables:
case ExifTag.JPEGACTables:
case ExifTag.StripRowCounts:
case ExifTag.IntergraphRegisters:
case ExifTag.TimeZoneOffset:
exifValue = new ExifValue(tag, ExifDataType.Long, true);
break;
case ExifTag.SubfileType:
case ExifTag.SubIFDOffset:
case ExifTag.GPSIFDOffset:
case ExifTag.T4Options:
case ExifTag.T6Options:
case ExifTag.XClipPathUnits:
case ExifTag.YClipPathUnits:
case ExifTag.ProfileType:
case ExifTag.CodingMethods:
case ExifTag.T82ptions:
case ExifTag.JPEGInterchangeFormat:
case ExifTag.JPEGInterchangeFormatLength:
case ExifTag.MDFileTag:
case ExifTag.StandardOutputSensitivity:
case ExifTag.RecommendedExposureIndex:
case ExifTag.ISOSpeed:
case ExifTag.ISOSpeedLatitudeyyy:
case ExifTag.ISOSpeedLatitudezzz:
case ExifTag.FaxRecvParams:
case ExifTag.FaxRecvTime:
case ExifTag.ImageNumber:
exifValue = new ExifValue(tag, ExifDataType.Long, false);
break;
case ExifTag.WhitePoint:
case ExifTag.PrimaryChromaticities:
case ExifTag.YCbCrCoefficients:
case ExifTag.ReferenceBlackWhite:
case ExifTag.PixelScale:
case ExifTag.IntergraphMatrix:
case ExifTag.ModelTiePoint:
case ExifTag.ModelTransform:
case ExifTag.GPSLatitude:
case ExifTag.GPSLongitude:
case ExifTag.GPSTimestamp:
case ExifTag.GPSDestLatitude:
case ExifTag.GPSDestLongitude:
exifValue = new ExifValue(tag, ExifDataType.Rational, true);
break;
case ExifTag.XPosition:
case ExifTag.YPosition:
case ExifTag.XResolution:
case ExifTag.YResolution:
case ExifTag.BatteryLevel:
case ExifTag.ExposureTime:
case ExifTag.FNumber:
case ExifTag.MDScalePixel:
case ExifTag.CompressedBitsPerPixel:
case ExifTag.ApertureValue:
case ExifTag.MaxApertureValue:
case ExifTag.SubjectDistance:
case ExifTag.FocalLength:
case ExifTag.FlashEnergy2:
case ExifTag.FocalPlaneXResolution2:
case ExifTag.FocalPlaneYResolution2:
case ExifTag.ExposureIndex2:
case ExifTag.Humidity:
case ExifTag.Pressure:
case ExifTag.Acceleration:
case ExifTag.FlashEnergy:
case ExifTag.FocalPlaneXResolution:
case ExifTag.FocalPlaneYResolution:
case ExifTag.ExposureIndex:
case ExifTag.DigitalZoomRatio:
case ExifTag.LensInfo:
case ExifTag.GPSAltitude:
case ExifTag.GPSDOP:
case ExifTag.GPSSpeed:
case ExifTag.GPSTrack:
case ExifTag.GPSImgDirection:
case ExifTag.GPSDestBearing:
case ExifTag.GPSDestDistance:
exifValue = new ExifValue(tag, ExifDataType.Rational, false);
break;
case ExifTag.BitsPerSample:
case ExifTag.MinSampleValue:
case ExifTag.MaxSampleValue:
case ExifTag.GrayResponseCurve:
case ExifTag.ColorMap:
case ExifTag.ExtraSamples:
case ExifTag.PageNumber:
case ExifTag.TransferFunction:
case ExifTag.Predictor:
case ExifTag.HalftoneHints:
case ExifTag.SampleFormat:
case ExifTag.TransferRange:
case ExifTag.DefaultImageColor:
case ExifTag.JPEGLosslessPredictors:
case ExifTag.JPEGPointTransforms:
case ExifTag.YCbCrSubsampling:
case ExifTag.CFARepeatPatternDim:
case ExifTag.IntergraphPacketData:
case ExifTag.ISOSpeedRatings:
case ExifTag.SubjectArea:
case ExifTag.SubjectLocation:
exifValue = new ExifValue(tag, ExifDataType.Short, true);
break;
case ExifTag.OldSubfileType:
case ExifTag.Compression:
case ExifTag.PhotometricInterpretation:
case ExifTag.Thresholding:
case ExifTag.CellWidth:
case ExifTag.CellLength:
case ExifTag.FillOrder:
case ExifTag.Orientation:
case ExifTag.SamplesPerPixel:
case ExifTag.PlanarConfiguration:
case ExifTag.GrayResponseUnit:
case ExifTag.ResolutionUnit:
case ExifTag.CleanFaxData:
case ExifTag.InkSet:
case ExifTag.NumberOfInks:
case ExifTag.DotRange:
case ExifTag.Indexed:
case ExifTag.OPIProxy:
case ExifTag.JPEGProc:
case ExifTag.JPEGRestartInterval:
case ExifTag.YCbCrPositioning:
case ExifTag.Rating:
case ExifTag.RatingPercent:
case ExifTag.ExposureProgram:
case ExifTag.Interlace:
case ExifTag.SelfTimerMode:
case ExifTag.SensitivityType:
case ExifTag.MeteringMode:
case ExifTag.LightSource:
case ExifTag.FocalPlaneResolutionUnit2:
case ExifTag.SensingMethod2:
case ExifTag.Flash:
case ExifTag.ColorSpace:
case ExifTag.FocalPlaneResolutionUnit:
case ExifTag.SensingMethod:
case ExifTag.CustomRendered:
case ExifTag.ExposureMode:
case ExifTag.WhiteBalance:
case ExifTag.FocalLengthIn35mmFilm:
case ExifTag.SceneCaptureType:
case ExifTag.GainControl:
case ExifTag.Contrast:
case ExifTag.Saturation:
case ExifTag.Sharpness:
case ExifTag.SubjectDistanceRange:
case ExifTag.GPSDifferential:
exifValue = new ExifValue(tag, ExifDataType.Short, false);
break;
case ExifTag.Decode:
exifValue = new ExifValue(tag, ExifDataType.SignedRational, true);
break;
case ExifTag.ShutterSpeedValue:
case ExifTag.BrightnessValue:
case ExifTag.ExposureBiasValue:
case ExifTag.AmbientTemperature:
case ExifTag.WaterDepth:
case ExifTag.CameraElevationAngle:
exifValue = new ExifValue(tag, ExifDataType.SignedRational, false);
break;
case ExifTag.JPEGTables:
case ExifTag.OECF:
case ExifTag.ExifVersion:
case ExifTag.ComponentsConfiguration:
case ExifTag.MakerNote:
case ExifTag.UserComment:
case ExifTag.FlashpixVersion:
case ExifTag.SpatialFrequencyResponse:
case ExifTag.SpatialFrequencyResponse2:
case ExifTag.Noise:
case ExifTag.CFAPattern:
case ExifTag.DeviceSettingDescription:
case ExifTag.ImageSourceData:
case ExifTag.GPSProcessingMethod:
case ExifTag.GPSAreaInformation:
exifValue = new ExifValue(tag, ExifDataType.Undefined, true);
break;
case ExifTag.FileSource:
case ExifTag.SceneType:
exifValue = new ExifValue(tag, ExifDataType.Undefined, false);
break;
case ExifTag.StripOffsets:
case ExifTag.TileByteCounts:
case ExifTag.ImageLayer:
exifValue = CreateNumber(tag, type, true);
break;
case ExifTag.ImageWidth:
case ExifTag.ImageLength:
case ExifTag.TileWidth:
case ExifTag.TileLength:
case ExifTag.BadFaxLines:
case ExifTag.ConsecutiveBadFaxLines:
case ExifTag.PixelXDimension:
case ExifTag.PixelYDimension:
exifValue = CreateNumber(tag, type, false);
break;
default:
throw new NotSupportedException();
}
exifValue.Value = value;
return(exifValue);
}
