/// <summary>
/// Converts a bitmap file (whatever format, i.e. RAW or BMP) into a file which format depends of the encoder passed as argument.
/// A new BitmapEncoder has to be created in the Encoding event handler for each file (because the Save method can be called only once).
/// </summary>
/// <param name="originalFilename">The original image file name, without path.</param>
/// <param name="originalPath">The path of the original file.</param>
/// <param name="convertedPath">The path of the converted file.</param>
/// <param name="overwriteExistingFile">Indicates if an existing converted file should be overwritten.</param>
public void ConvertFile(
string originalFilename,
string originalPath,
string convertedPath,
bool overwriteExistingFile)
{
Directory.CreateDirectory(convertedPath);
BitmapDecoder decoder = GetDecoder(originalFilename, originalPath);
if (_encoding != null)
{
BitmapConverterEventArgs e = new BitmapConverterEventArgs(
originalFilename, "", originalPath, convertedPath);
_encoding(this, e);
if (!String.IsNullOrEmpty(e.ConvertedFileExtension))
{
e.ConvertedFilename = System.IO.Path.ChangeExtension(originalFilename, e.ConvertedFileExtension);
}
string convertedFullFilename = System.IO.Path.Combine(convertedPath, e.ConvertedFilename);
if (overwriteExistingFile || !File.Exists(convertedFullFilename))
{
using (FileStream fs = File.OpenWrite(convertedFullFilename))
{
if (e.Encoder != null)
{
e.Encoder.Frames.Add(decoder.Frames[0]);
e.Encoder.Save(fs);
if (_encoded != null)
{
_encoded(this, e);
}
}
}
}
}
}
void _converter_Encoding(object sender, BitmapConverterEventArgs e)
{
e.Encoder = new JpegBitmapEncoder();
(e.Encoder as JpegBitmapEncoder).QualityLevel = _qualityLevel;
e.ConvertedFileExtension = ".jpg";
}
void _converter_Encoding(object sender, BitmapConverterEventArgs e)
{
e.Encoder = new PngBitmapEncoder();
(e.Encoder as PngBitmapEncoder).Interlace = _interlace;
e.ConvertedFileExtension = ".png";
}
