/// <summary>
/// If the newly selected item is of type referenceKey, allow jump on double click
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void propGrid_SelectedGridItemChanged(object sender, SelectedGridItemChangedEventArgs e)
{
m_selectedObject = e.NewSelection.Value as MXFObject;
m_currentReference = null;
if (m_selectedObject != null)
{
// Select the reference itself by default
m_currentReference = m_selectedObject;
// Refkey, then select the reference it points too
MXFRefKey refkey = m_selectedObject as MXFRefKey;
if (refkey != null)
{
if (refkey.Reference != null)
{
m_currentReference = refkey.Reference;
}
else
{
m_currentReference = null; // Reset
}
}
}
this.btnSelectReference.Enabled = (m_currentReference != null);
}
/// <summary>
/// Read a list of keys
/// </summary>
/// <param name="reader"></param>
/// <param name="categoryName"></param>
/// <returns></returns>
protected UInt32 ReadKeyList(MXFReader reader, string categoryName, string singleItem)
{
UInt32 nofItems = reader.ReadD();
UInt32 objectSize = reader.ReadD(); // useless size of objects, always 16 according to specs
MXFObject keylist = new MXFObject(categoryName, reader.Position);
if (nofItems < UInt32.MaxValue)
{
for (int n = 0; n < nofItems; n++)
{
MXFRefKey key = new MXFRefKey(reader, objectSize, singleItem);
keylist.AddChild(key);
}
}
this.AddChild(keylist);
return(nofItems);
}
/// <summary>
/// Overridden method to process local tags
/// </summary>
/// <param name="localTag"></param>
protected override bool ParseLocalTag(MXFReader reader, MXFLocalTag localTag)
{
switch (localTag.Tag)
{
case 0x4403:
this.TracksCount = ReadKeyList(reader, "Tracks", "Track");
return(true);
case 0x4401: // UMID
this.ULUID = new MXFRefKey(reader);
this.PackageUID = new MXFRefKey(reader);
return(true);
case 0x4701: // Descriptor
this.DescriptorUID = new MXFRefKey(reader);
return(true);
}
return(false); // Not parsed, use default parsing
}
/// <summary>
/// Overridden method to process local tags
/// </summary>
/// <param name="localTag"></param>
protected override bool ParseLocalTag(MXFReader reader, MXFLocalTag localTag)
{
switch (localTag.Tag)
{
case 0x3B02: this.LastModificationDate = reader.ReadTimestamp(); return(true);
case 0x3B05: this.Version = reader.ReadW(); return(true);
case 0x3B07: this.ObjectModelVersion = reader.ReadD(); return(true);
case 0x3B03: this.ContentStorageUID = new MXFRefKey(reader, 16, "ContentStorageUID"); return(true);
case 0x3B08: this.PrimaryPackageUID = new MXFRefKey(reader, 16, "PrimaryPackageUID"); return(true);
case 0x3B09: this.OperationalPatternUL = new MXFKey(reader, 16); return(true);
case 0x3B06: ReadKeyList(reader, "Identifications", "Identification"); return(true);
case 0x3B0A: ReadKeyList(reader, "Essencecontainers", "Essencecontainer"); return(true);
case 0x3B0B: ReadKeyList(reader, "Metadata Schemes", "Metadata scheme"); return(true);
}
return(false); // Not parsed, use default parsing
}
