C# PwGroup.TraverseTree方法代码示例

		public static PwObjectPool FromGroupRecursive(PwGroup pgRoot, bool bEntries)
		{
			if(pgRoot == null) throw new ArgumentNullException("pgRoot");

			PwObjectPool p = new PwObjectPool();

			if(!bEntries) p.m_dict[new PwUuidComparable(pgRoot.Uuid)] = pgRoot;
			GroupHandler gh = delegate(PwGroup pg)
			{
				p.m_dict[new PwUuidComparable(pg.Uuid)] = pg;
				return true;
			};

			EntryHandler eh = delegate(PwEntry pe)
			{
				p.m_dict[new PwUuidComparable(pe.Uuid)] = pe;
				return true;
			};

			pgRoot.TraverseTree(TraversalMethod.PreOrder, bEntries ? null : gh,
				bEntries ? eh : null);
			return p;
		}

        private void BinPoolBuild(PwGroup pgDataSource)
        {
            m_dictBinPool = new Dictionary<string, ProtectedBinary>();

            if(pgDataSource == null) { Debug.Assert(false); return; }

            EntryHandler eh = delegate(PwEntry pe)
            {
                foreach(PwEntry peHistory in pe.History)
                {
                    BinPoolAdd(peHistory.Binaries);
                }

                BinPoolAdd(pe.Binaries);
                return true;
            };

            pgDataSource.TraverseTree(TraversalMethod.PreOrder, null, eh);
        }

//.........这里部分代码省略.........
			bool bWarnedOnce = false;
			uint uGroupCount, uEntryCount, uEntriesSaved = 0;
			pgRoot.GetCounts(true, out uGroupCount, out uEntryCount);

			DateTime dtNeverExpire = KdbManager.GetNeverExpireTime();

			EntryHandler eh = delegate(PwEntry pe)
			{
				KdbEntry e = new KdbEntry();

				e.Uuid.Set(pe.Uuid.UuidBytes);

				if(pe.ParentGroup != pgRoot)
					e.GroupId = dictGroups[pe.ParentGroup];
				else
				{
					e.GroupId = 1;
					if((m_slLogger != null) && !bWarnedOnce)
					{
						m_slLogger.SetText(KdbPrefix +
							KPRes.FormatNoRootEntries, LogStatusType.Warning);
						bWarnedOnce = true;
					}

					if(dictGroups.Count == 0)
						throw new Exception(KPRes.FormatNoSubGroupsInRoot);
				}

				e.ImageId = (uint)pe.IconId;

				e.Title = pe.Strings.ReadSafe(PwDefs.TitleField);
				e.UserName = pe.Strings.ReadSafe(PwDefs.UserNameField);
				e.Password = pe.Strings.ReadSafe(PwDefs.PasswordField);
				e.Url = pe.Strings.ReadSafe(PwDefs.UrlField);

				string strNotes = pe.Strings.ReadSafe(PwDefs.NotesField);
				ExportCustomStrings(pe, ref strNotes);
				ExportAutoType(pe, ref strNotes);
				ExportUrlOverride(pe, ref strNotes);
				e.Additional = strNotes;

				e.PasswordLength = (uint)e.Password.Length;

				Debug.Assert(TimeUtil.PwTimeLength == 7);
				e.CreationTime.Set(pe.CreationTime);
				e.LastModificationTime.Set(pe.LastModificationTime);
				e.LastAccessTime.Set(pe.LastAccessTime);

				if(pe.Expires) e.ExpirationTime.Set(pe.ExpiryTime);
				else e.ExpirationTime.Set(dtNeverExpire);

				IntPtr hBinaryData = IntPtr.Zero;
				if(pe.Binaries.UCount >= 1)
				{
					foreach(KeyValuePair<string, ProtectedBinary> kvp in pe.Binaries)
					{
						e.BinaryDescription = kvp.Key;

						byte[] pbAttached = kvp.Value.ReadData();
						e.BinaryDataLength = (uint)pbAttached.Length;

						if(e.BinaryDataLength > 0)
						{
							hBinaryData = Marshal.AllocHGlobal((int)e.BinaryDataLength);
							Marshal.Copy(pbAttached, 0, hBinaryData, (int)e.BinaryDataLength);

							e.BinaryData = hBinaryData;
						}

						break;
					}

					if((pe.Binaries.UCount > 1) && (m_slLogger != null))
						m_slLogger.SetText(KdbPrefix + KPRes.FormatOnlyOneAttachment + "\r\n\r\n" +
							KPRes.Entry + ":\r\n" + KPRes.Title + ": " + e.Title + "\r\n" +
							KPRes.UserName + ": " + e.UserName, LogStatusType.Warning);
				}

				bool bResult = mgr.AddEntry(ref e);

				Marshal.FreeHGlobal(hBinaryData);
				hBinaryData = IntPtr.Zero;

				if(!bResult)
				{
					Debug.Assert(false);
					throw new InvalidOperationException();
				}

				++uEntriesSaved;
				if(m_slLogger != null)
					if(!m_slLogger.SetProgress((100 * uEntriesSaved) / uEntryCount))
						return false;

				return true;
			};

			if(!pgRoot.TraverseTree(TraversalMethod.PreOrder, null, eh))
				throw new InvalidOperationException();
		}

		private static void EnsureParentGroupsExported(PwGroup pgRoot, ref uint uGroupIndex,
			Dictionary<PwGroup, UInt32> dictGroups, DateTime dtNeverExpires,
			KdbManager mgr)
		{
			bool bHasAtLeastOneGroup = (dictGroups.Count > 0);
			uint uLocalIndex = uGroupIndex; // Local copy, can't use ref in delegate

			EntryHandler eh = delegate(PwEntry pe)
			{
				PwGroup pg = pe.ParentGroup;
				if(pg == null) { Debug.Assert(false); return true; }
				if(bHasAtLeastOneGroup && (pg == pgRoot)) return true;

				if(dictGroups.ContainsKey(pg)) return true;

				WriteGroup(pg, pgRoot, ref uLocalIndex, dictGroups, dtNeverExpires,
					mgr, true);
				return true;
			};

			pgRoot.TraverseTree(TraversalMethod.PreOrder, null, eh);
			uGroupIndex = uLocalIndex;
		}

		private static Dictionary<PwGroup, UInt32> WriteGroups(KdbManager mgr,
			PwGroup pgRoot)
		{
			Dictionary<PwGroup, UInt32> dictGroups = new Dictionary<PwGroup, uint>();

			uint uGroupIndex = 1;
			DateTime dtNeverExpire = KdbManager.GetNeverExpireTime();

			GroupHandler gh = delegate(PwGroup pg)
			{
				WriteGroup(pg, pgRoot, ref uGroupIndex, dictGroups, dtNeverExpire,
					mgr, false);
				return true;
			};

			pgRoot.TraverseTree(TraversalMethod.PreOrder, gh, null);
			Debug.Assert(dictGroups.Count == (int)(uGroupIndex - 1));

			EnsureParentGroupsExported(pgRoot, ref uGroupIndex, dictGroups,
				dtNeverExpire, mgr);
			return dictGroups;
		}

        private static Dictionary<PwGroup, UInt32> WriteGroups(Kdb3Manager mgr,
            PwGroup pgRoot)
        {
            Dictionary<PwGroup, UInt32> dictGroups = new Dictionary<PwGroup, uint>();

            uint uGroupIndex = 1;
            DateTime dtNeverExpire = Kdb3Manager.GetNeverExpireTime();

            GroupHandler gh = delegate(PwGroup pg)
            {
                if(pg == pgRoot) return true;

                Kdb3Group grp = new Kdb3Group();

                grp.GroupId = uGroupIndex;
                dictGroups[pg] = grp.GroupId;

                grp.ImageId = (uint)pg.IconId;
                grp.Name = pg.Name;
                grp.CreationTime.Set(pg.CreationTime);
                grp.LastModificationTime.Set(pg.LastModificationTime);
                grp.LastAccessTime.Set(pg.LastAccessTime);

                if(pg.Expires)
                    grp.ExpirationTime.Set(pg.ExpiryTime);
                else grp.ExpirationTime.Set(dtNeverExpire);

                grp.Level = (ushort)(pg.GetLevel() - 1);

                if(pg.IsExpanded) grp.Flags |= (uint)Kdb3GroupFlags.Expanded;

                if(!mgr.AddGroup(ref grp))
                {
                    Debug.Assert(false);
                    throw new InvalidOperationException();
                }

                ++uGroupIndex;
                return true;
            };

            pgRoot.TraverseTree(TraversalMethod.PreOrder, gh, null);
            Debug.Assert(dictGroups.Count == (int)(uGroupIndex - 1));
            return dictGroups;
        }

		private void WriteDocument(PwGroup pgRoot)
		{
			Debug.Assert(m_xmlWriter != null);
			if(m_xmlWriter == null) throw new InvalidOperationException();

			uint uNumGroups, uNumEntries, uCurEntry = 0;
			pgRoot.GetCounts(true, out uNumGroups, out uNumEntries);

			m_xmlWriter.WriteStartDocument(true);
			m_xmlWriter.WriteStartElement(ElemDocNode);

			WriteMeta();

			m_xmlWriter.WriteStartElement(ElemRoot);
			StartGroup(pgRoot);

			Stack<PwGroup> groupStack = new Stack<PwGroup>();
			groupStack.Push(pgRoot);

			GroupHandler gh = delegate(PwGroup pg)
			{
				Debug.Assert(pg != null);
				if(pg == null) throw new ArgumentNullException("pg");

				while(true)
				{
					if(pg.ParentGroup == groupStack.Peek())
					{
						groupStack.Push(pg);
						StartGroup(pg);
						break;
					}
					else
					{
						groupStack.Pop();
						if(groupStack.Count <= 0) return false;

						EndGroup();
					}
				}

				return true;
			};

			EntryHandler eh = delegate(PwEntry pe)
			{
				Debug.Assert(pe != null);
				WriteEntry(pe, false);

				++uCurEntry;
				if(m_slLogger != null)
					if(!m_slLogger.SetProgress((100 * uCurEntry) / uNumEntries))
						return false;

				return true;
			};

			if(!pgRoot.TraverseTree(TraversalMethod.PreOrder, gh, eh))
				throw new InvalidOperationException();

			while(groupStack.Count > 1)
			{
				m_xmlWriter.WriteEndElement();
				groupStack.Pop();
			}

			EndGroup();

			WriteList(ElemDeletedObjects, m_pwDatabase.DeletedObjects);
			m_xmlWriter.WriteEndElement(); // Root

			m_xmlWriter.WriteEndElement(); // ElemDocNode
			m_xmlWriter.WriteEndDocument();
		}