/// <summary>Initializes this form with the given key pair.</summary>
public void Initialize(PrimaryKey key)
{
if(key == null) throw new ArgumentNullException();
txtPrimaryId.Text = key.PrimaryUserId.Name;
txtKeyId.Text = key.ShortKeyId +
(key.KeyId.Length > 8 ? " (long ID: " + key.KeyId + ")" : null);
txtKeyType.Text = (key.HasSecretKey ? "public key" : "public and secret key pair");
txtKeyValidity.Text = PGPUI.GetKeyValidityDescription(key);
txtOwnerTrust.Text = PGPUI.GetTrustDescription(key.OwnerTrust);
txtFingerprint.Text = key.Fingerprint;
List<string> capabilities = new List<string>();
if(key.HasCapabilities(KeyCapabilities.Authenticate)) capabilities.Add("authenticate");
if(key.HasCapabilities(KeyCapabilities.Certify)) capabilities.Add("certify");
if(key.HasCapabilities(KeyCapabilities.Encrypt)) capabilities.Add("encrypt");
if(key.HasCapabilities(KeyCapabilities.Sign)) capabilities.Add("sign");
txtCapabilities.Text = capabilities.Count == 0 ? "none" : string.Join(", ", capabilities.ToArray());
keyList.Items.Clear();
keyList.AddKey(key);
foreach(Subkey subkey in key.Subkeys) keyList.AddKey(subkey);
}