public override ArcFile TryOpen(ArcView file)
{
using (var input = file.CreateStream())
using (var reader = new PsbReader(input))
{
foreach (var key in KnownKeys)
{
try
{
if (reader.Parse(key))
{
return(OpenArcFile(reader, file));
}
if (!reader.IsEncrypted)
{
break;
}
}
catch { /* ignore parse errors caused by invalid key */ }
}
if (reader.ParseNonEncrypted())
{
return(OpenArcFile(reader, file));
}
return(null);
}
}
public override ArcFile TryOpen(ArcView file)
{
using (var input = file.CreateStream())
using (var reader = new PsbReader(input))
{
foreach (var key in KnownKeys)
{
if (reader.Parse(key))
{
var dir = reader.GetTextures();
if (null == dir || 0 == dir.Count)
{
return(null);
}
else
{
return(new ArcFile(file, this, dir));
}
}
if (!reader.IsEncrypted)
{
break;
}
}
return(null);
}
}
ArcFile OpenArcFile(PsbReader reader, ArcView file)
{
var dir = reader.GetTextures();
if (null == dir)
{
dir = reader.GetLayers();
}
if (null == dir || 0 == dir.Count)
{
return(null);
}
return(new ArcFile(file, this, dir));
}