protected override void PullImageProperties()
{
PngHeader png = new PngHeader(Stream);
foreach (PngFile.Chunk chunk in png.Chunks)
{
if (chunk is PngFile.IhdrChunk)
{
PngFile.IhdrChunk ihdr = (PngFile.IhdrChunk)chunk;
Width = (int)ihdr.Width;
Height = (int)ihdr.Height;
Depth = ihdr.Depth;
bool hasAlpha = false;
string colorType = null;
switch (ihdr.Color)
{
case PngFile.ColorType.Gray:
colorType = "Greyscale";
hasAlpha = false;
break;
case PngFile.ColorType.Rgb:
colorType = "Truecolor";
hasAlpha = false;
break;
case PngFile.ColorType.Indexed:
colorType = "Indexed";
hasAlpha = false;
break;
case PngFile.ColorType.GrayAlpha:
colorType = "Greyscale";
hasAlpha = true;
break;
case PngFile.ColorType.RgbA:
colorType = "Truecolor";
hasAlpha = true;
break;
}
AddProperty(Beagle.Property.NewUnsearched("fixme:colortype", colorType));
AddProperty(Beagle.Property.NewBool("fixme:hasalpha", hasAlpha));
}
else if (chunk is PngFile.TextChunk)
{
ExtractTextProperty((PngFile.TextChunk)chunk);
}
}
Finished();
}
protected override void PullImageProperties ()
{
PngHeader png = new PngHeader (Stream);
foreach (PngFile.Chunk chunk in png.Chunks){
if (chunk is PngFile.IhdrChunk) {
PngFile.IhdrChunk ihdr = (PngFile.IhdrChunk)chunk;
Width = (int)ihdr.Width;
Height = (int)ihdr.Height;
Depth = ihdr.Depth;
bool hasAlpha = false;
string colorType = null;
switch (ihdr.Color) {
case PngFile.ColorType.Gray:
colorType = "Greyscale";
hasAlpha = false;
break;
case PngFile.ColorType.Rgb:
colorType = "Truecolor";
hasAlpha = false;
break;
case PngFile.ColorType.Indexed:
colorType = "Indexed";
hasAlpha = false;
break;
case PngFile.ColorType.GrayAlpha:
colorType = "Greyscale";
hasAlpha = true;
break;
case PngFile.ColorType.RgbA:
colorType = "Truecolor";
hasAlpha = true;
break;
}
AddProperty (Beagle.Property.NewUnsearched ("fixme:colortype", colorType));
AddProperty (Beagle.Property.NewBool ("fixme:hasalpha", hasAlpha));
} else if (chunk is PngFile.TextChunk) {
ExtractTextProperty ((PngFile.TextChunk) chunk);
}
}
Finished ();
}
