public static BitmapImage LoadBitmapImageFromPackage(AdminShellPackageEnv package, string path)
{
if (package == null || path == null)
{
return(null);
}
// ReSharper disable EmptyGeneralCatchClause
try
{
var thumbStream = package.GetLocalStreamFromPackage(path);
if (thumbStream == null)
{
return(null);
}
// load image
var bi = new BitmapImage();
bi.BeginInit();
bi.CacheOption = BitmapCacheOption.OnLoad;
bi.StreamSource = thumbStream;
bi.EndInit();
// note: no closing required!
// give this back
return(bi);
}
catch { }
// ReSharper enable EmptyGeneralCatchClause
return(null);
}
public static BitmapImage LoadBitmapImageFromPackage(AdminShellPackageEnv package, string path)
{
if (package == null || path == null)
{
return(null);
}
try
{
var thumbStream = package.GetLocalStreamFromPackage(path);
if (thumbStream == null)
{
return(null);
}
// load image
var bi = new BitmapImage();
bi.BeginInit();
bi.CacheOption = BitmapCacheOption.OnLoad;
bi.StreamSource = thumbStream;
bi.EndInit();
// note: no closing required!
// give this back
return(bi);
}
catch (Exception ex)
{
AdminShellNS.LogInternally.That.SilentlyIgnoredError(ex);
}
return(null);
}
public UInt32 Open(Byte mode)
{
// access file handle
if (this.package == null || this.file == null)
{
throw new InvalidOperationException("no admin-shell package or file");
}
var nh = GetMaxHandle() + 1;
var fh = new PackageFileHandle(nh);
fh.packStream = package.GetLocalStreamFromPackage(file.value);
if (fh.packStream == null)
{
throw new InvalidOperationException("no admin-shell package or file");
}
handles.Add(nh, fh);
// care about the particularities of write
fh.UaMode = mode;
fh.IsRead = ((mode & 0x01) > 0);
fh.IsWrite = ((mode & 0x02) > 0);
if ((mode & 0x04) > 0)
{
// Erase existing
fh.packStream.Seek(0, SeekOrigin.Begin);
fh.packStream.SetLength(0);
fh.packStream.Flush();
}
if ((mode & 0x08) > 0)
{
// Append
fh.packStream.Seek(0, SeekOrigin.End);
fh.packStream.Flush();
}
// done
return(nh);
}
/// <summary>
/// Checks, if a FileType node is advisable for representing an AASX file ..
/// Shall be TRUE for local, existing files ..
/// </summary>
/// <returns></returns>
public bool CheckSuitablity(AdminShellPackageEnv package, AdminShell.File file)
{
// trivial
if (package == null || file == null)
{
return(false);
}
// try get a stream ..
Stream s = null;
try
{
s = package.GetLocalStreamFromPackage(file.value);
}
catch
{
return(false);
}
// ok?
return(s != null);
}
/// <summary>
/// Checks, if a FileType node is advisable for representing an AASX file ..
/// Shall be TRUE for local, existing files ..
/// </summary>
/// <returns></returns>
public bool CheckSuitablity(AdminShellPackageEnv package, AdminShell.File file)
{
// trivial
if (package == null || file == null)
{
return(false);
}
// try get a stream ..
Stream s = null;
try
{
s = package.GetLocalStreamFromPackage(file.value);
}
catch (Exception ex)
{
AdminShellNS.LogInternally.That.SilentlyIgnoredError(ex);
return(false);
}
// ok?
return(s != null);
}
