public static void WriteASCIIValue(Vt.Jpeg.Jpeg VtJpeg, string TextValue, PropertyTagId Id)
{
// load the image to change
Image PicImage = new Bitmap(VtJpeg.SourceBitmap);
System.Drawing.Imaging.Encoder Enc = System.Drawing.Imaging.Encoder.Transformation;
EncoderParameters EncParms = new EncoderParameters(1);
ImageCodecInfo CodecInfo = Vt.Jpeg.Jpeg.GetEncoderInfo("image/jpeg");
// put the new description into the right property item
PropertyItem[] PropertyItems = PicImage.PropertyItems;
PropertyItems[0].Id = (int)Id; // 0x010e;
PropertyItems[0].Type = (short)PropertyTagType.ASCII;
PropertyItems[0].Len = TextValue.Length;
PropertyItems[0].Value = VtStrings.StringToByteArray(TextValue);
PicImage.SetPropertyItem(PropertyItems[0]);
// for lossless rewriting must rotate the image by 90 degrees!
EncoderParameter EncParm = new EncoderParameter(Enc, (long)EncoderValue.TransformRotate90);
EncParms.Param[0] = EncParm;
// ulozim transformovany jpeg do streamu
MemoryStream TmpStream = new MemoryStream();
PicImage.Save(TmpStream, CodecInfo, EncParms);
// vymaz z pameti
PicImage.Dispose();
PicImage = null;
// ted ho otocim zpet a dam do puvodniho souboru
PicImage = Image.FromStream(TmpStream);
EncParm = new EncoderParameter(Enc, (long)EncoderValue.TransformRotate270);
EncParms.Param[0] = EncParm;
// PicImage.Save(Filename, CodecInfo, EncParms);
VtJpeg.LoadFromBitmap(PicImage as Bitmap);
PicImage.Dispose();
PicImage = null;
}
/// <summary>
/// zapise do jpegu ascii textovou exif informaci
/// </summary>
/// <param name="Filename">jmeno jpeg souboru</param>
/// <param name="TextValue">text</param>
/// <param name="Id">id cislo exif vlastnosti</param>
public static void SaveAndAddImageDateTime(string SourceFile, string DestinationFile, DateTime ImageDateTime)
{
// prevod datetime na str
string StrDateTime = ImageDateTime.ToString("yyyy:MM:dd HH:mm:ss");
// load the image to change
Image PicImage = Image.FromFile(SourceFile);
System.Drawing.Imaging.Encoder Enc = System.Drawing.Imaging.Encoder.Transformation;
EncoderParameters EncParms = new EncoderParameters(1);
ImageCodecInfo CodecInfo = Vt.Jpeg.Jpeg.GetEncoderInfo("image/jpeg");
// put the new description into the right property item
PropertyItem[] PropertyItems = PicImage.PropertyItems;
PropertyItems[0].Id = (int)PropertyTagId.DateTime;
PropertyItems[0].Type = (short)PropertyTagType.ASCII;
PropertyItems[0].Len = StrDateTime.Length;
PropertyItems[0].Value = VtStrings.StrToByteArrayCS(StrDateTime);
PicImage.SetPropertyItem(PropertyItems[0]);
// for lossless rewriting must rotate the image by 90 degrees!
EncoderParameter EncParm = new EncoderParameter(Enc, (long)EncoderValue.TransformRotate90);
EncParms.Param[0] = EncParm;
// ulozim transformovany jpeg do streamu
MemoryStream TmpStream = new MemoryStream();
PicImage.Save(TmpStream, CodecInfo, EncParms);
// vymaz z pameti
PicImage.Dispose();
PicImage = null;
// ted ho otocim zpet a dam do puvodniho souboru
PicImage = Image.FromStream(TmpStream);
EncParm = new EncoderParameter(Enc, (long)EncoderValue.TransformRotate270);
EncParms.Param[0] = EncParm;
PicImage.Save(DestinationFile, CodecInfo, EncParms);
PicImage.Dispose();
PicImage = null;
}
private void GetFileName(string cfgFileName)
{
if (!string.IsNullOrEmpty(cfgFileName))
{
// budu hledat v zaslanym souboru
_cfgFileName = cfgFileName;
}
else
{
// jinak jmeno cfg souboru dle exe - jen odriznu .vshost.exe
string exeFileName = AppDomain.CurrentDomain.FriendlyName;
if (exeFileName.EndsWith(".vshost.exe"))
{
exeFileName = exeFileName.Substring(0, exeFileName.Length - ".vshost.exe".Length);
}
if (exeFileName.EndsWith(".exe"))
{
exeFileName = exeFileName.Substring(0, exeFileName.Length - ".exe".Length);
}
_cfgFileName = VtStrings.AddSlash(AppDomain.CurrentDomain.BaseDirectory) + exeFileName + DEFAULT_EXT;
}
}
/// <summary>
/// samotny prevod PropertyItem.Value na string dle PropertyItem.Type
/// </summary>
/// <param name="PItem"></param>
/// <returns></returns>
static private string PropertyValueToString(PropertyItem PItem)
{
const int BYTEJUMP_SHORT = 2;
const int BYTEJUMP_LONG = 4;
const int BYTEJUMP_SLONG = 4;
const int BYTEJUMP_RATIONAL = 8;
const int BYTEJUMP_SRATIONAL = 8;
string Result = null;
switch ((PropertyTagType)PItem.Type)
{
case (PropertyTagType.Byte): // 1
{
Result = BitConverter.ToString(PItem.Value, 0, PItem.Len);
break;
}
case (PropertyTagType.ASCII): // 2
{
/* - puvodni, ale pak nejde cestina !!!
* System.Text.ASCIIEncoding Encoding = new System.Text.ASCIIEncoding();
* Result = Encoding.GetString(PItem.Value, 0, PItem.Len - 1);
*/
// spravny prevod do defaultniho kodovani, tj v ceskych win bude fungovat cestina
Result = VtStrings.BytesToStrCS(PItem.Value);
break;
}
case (PropertyTagType.Short): // 3
{
for (int i = 0; i < PItem.Len; i = i + BYTEJUMP_SHORT)
{
System.UInt16 Value = BitConverter.ToUInt16(PItem.Value, i);
Result += Value.ToString();
}
break;
}
case (PropertyTagType.Long): // 4
{
for (int i = 0; i < PItem.Len; i = i + BYTEJUMP_LONG)
{
System.UInt32 Value = BitConverter.ToUInt32(PItem.Value, i);
Result += Value.ToString();
}
break;
}
case (PropertyTagType.Rational): // 5
{
for (int i = 0; i < PItem.Len; i = i + BYTEJUMP_RATIONAL)
{
System.UInt32 Numer = BitConverter.ToUInt32(PItem.Value, i);
System.UInt32 Denom = BitConverter.ToUInt32(PItem.Value, i + BYTEJUMP_LONG);
if (Result != null)
{
Result += ' ';
}
Result += Numer.ToString() + '/' + Denom.ToString();
}
break;
}
case (PropertyTagType.Undefined): // 7
{
Result = BitConverter.ToString(PItem.Value, 0, PItem.Len);
break;
}
case (PropertyTagType.SLONG): // 9
{
for (int i = 0; i < PItem.Len; i = i + BYTEJUMP_SLONG)
{
System.Int32 Value = BitConverter.ToInt32(PItem.Value, i);
Result += Value.ToString();
}
break;
}
case (PropertyTagType.SRational): // 10
{
for (int i = 0; i < PItem.Len; i = i + BYTEJUMP_SRATIONAL)
{
System.Int32 Numer = BitConverter.ToInt32(PItem.Value, i);
System.Int32 Denom = BitConverter.ToInt32(PItem.Value, i + BYTEJUMP_SLONG);
if (Result != null)
{
Result += ' ';
}
Result += Numer.ToString() + '/' + Denom.ToString();
}
break;
}
default:
break;
}
return(Result);
}
