/// <summary>
/// Remove a tag from the file.
/// This command writes to disk.
/// </summary>
/// <param name="TagName">
/// A <see cref="System.String"/> indicating which tag to remove
/// </param>
/// <returns>
/// An <see cref="OggTagWriteCommandReturn"/> indicating the result of the operation
/// </returns>
public OggTagWriteCommandReturn RemoveTag(string TagName)
{
// Check that the tag name contains at least one character
if (TagName.Length < 1)
{
return(OggTagWriteCommandReturn.UnknownTag);
}
XiphComment XC = (XiphComment)m_TagLibFile.GetTag(TagTypes.Xiph, false);
if (XC != null)
{
// Remove the tag
XC.RemoveField(TagName);
// Copy the XC instance into our file (might need to clear the Xiph block first, but we'll see)
XC.CopyTo(m_TagLibFile.Tag, true);
// Save
m_TagLibFile.Save();
return(OggTagWriteCommandReturn.Success);
}
else
{
// Either there isn't a Xiph comment block or something went wrong
return(OggTagWriteCommandReturn.Error);
}
}
/// <summary>
/// Write a single Xiph tag to the file
/// This will overwrite the tag if it already exists, or create it if it doesn't
/// It will also create the Xiph tag block within the file if it doesn't already have one
/// This function writes to disk. If setting multiple tags consider using SetTags(OggTag[] Tags) to reduce the number of write operations
/// If setting an array, Tag.Values must contain at least one item. Tag.Value is ignored in this case
/// If setting a single value, Tag.Value must contain at least one character. Tag.Values is ignored in this case
/// </summary>
/// <param name="Tag">
/// The <see cref="OggTag"/> to write
/// </param>
/// <returns>
/// An <see cref="OggTagWriteCommandReturn"/> indicating the result of the operation
/// </returns>
public OggTagWriteCommandReturn SetTag(OggTag Tag)
{
// Validate Tag
if (Tag.IsEmpty)
{
return(OggTagWriteCommandReturn.InvalidValue);
}
if (Tag.Name.Length <= 0)
{
return(OggTagWriteCommandReturn.UnknownTag);
}
if (Tag.IsArray)
{
if (Tag.Values.Length <= 0)
{
return(OggTagWriteCommandReturn.InvalidValue);
}
}
else
{
if (Tag.Value.Length <= 0)
{
return(OggTagWriteCommandReturn.InvalidValue);
}
}
// Tag valid, try and write it
XiphComment XC = (XiphComment)m_TagLibFile.GetTag(TagTypes.Xiph, true);
if (XC != null)
{
string[] tmpStrArray;
if (Tag.IsArray)
{
tmpStrArray = Tag.Values;
}
else
{
tmpStrArray = new string[1]; tmpStrArray[0] = Tag.Value;
}
// Set field
XC.SetField(Tag.Name, tmpStrArray);
// Copy the XC instance into our file (not sure if this is needed)
XC.CopyTo(m_TagLibFile.Tag, true);
// Commit
m_TagLibFile.Save();
return(OggTagWriteCommandReturn.Success);
}
else
{
// If we're null something went wrong (we tried to create the XiphComment block and it failed probably)
return(OggTagWriteCommandReturn.Error);
}
}
/// <summary>
/// Write multiple Xiph tags to the file
/// This will overwrite any existing tags, and create them if they don't exist
/// It will also create the Xiph tag block within the file if it doesn't already have one
/// This function writes to disk. If setting only a single tag, consider using SetTag(OggTag Tag) to reduce the array handling overheads
/// If setting an array value Tags[i].Values must contain at least one item. Tags[i].Value is ignored in this case
/// If setting a single value, Tags[i].Value must contain at least one character. Tags[i].Values is ignored in this case
/// If AbortOnError is true, this function will abort (and not write) if any item in the Tags array is invalid.
/// If AbortOnError is false, this function will continue (and write) if items in the Tags array are invalid. It will still abort (and not write) if there are other errors.
/// </summary>
/// <param name="Tags">
/// An <see cref="OggTag[]"/> containing the tags to be written
/// </param>
/// <param name="AbortOnError">
/// A <see cref="System.bool"/> indicating whether to invalid items in the Tags array.
/// <returns>
/// An <see cref="OggTagWriteCommandReturn"/> indicating the result of the operation
/// </returns>
public OggTagWriteCommandReturn SetTags(OggTag[] Tags, bool AbortOnError)
{
// Check that the Tags array has at least one item in it
if (Tags.Length < 1)
{
return(OggTagWriteCommandReturn.UnknownTag);
}
XiphComment XC = (XiphComment)m_TagLibFile.GetTag(TagTypes.Xiph, true);
if (XC != null)
{
// Write the tags to the 'virtual' file
foreach (OggTag Tag in Tags)
{
// Validate tag
if (Tag.IsEmpty)
{
if (AbortOnError)
{
return(OggTagWriteCommandReturn.InvalidValue);
}
else
{
continue;
}
}
if (Tag.Name.Length <= 0)
{
if (AbortOnError)
{
return(OggTagWriteCommandReturn.UnknownTag);
}
else
{
continue;
}
}
if (Tag.IsArray)
{
if (Tag.Values.Length <= 0)
{
if (AbortOnError)
{
return(OggTagWriteCommandReturn.InvalidValue);
}
else
{
continue;
}
}
}
else
{
if (Tag.Value.Length <= 0)
{
if (AbortOnError)
{
return(OggTagWriteCommandReturn.InvalidValue);
}
else
{
continue;
}
}
}
string[] tmpStrArray;
if (Tag.IsArray)
{
tmpStrArray = Tag.Values;
}
else
{
tmpStrArray = new string[1]; tmpStrArray[0] = Tag.Value;
}
// Write tag
XC.SetField(Tag.Name, tmpStrArray);
}
// Copy the XC instance into our file (not sure if this is needed)
XC.CopyTo(m_TagLibFile.Tag, true);
// Save to disk
m_TagLibFile.Save();
return(OggTagWriteCommandReturn.Success);
}
else
{
// If we're null something went wrong (we tried to create the XiphComment block and it failed probably)
return(OggTagWriteCommandReturn.Error);
}
}
