Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / ndp / fx / src / DataEntity / System / Data / Common / Utils / TreePrinter.cs / 2 / TreePrinter.cs
//---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....] //--------------------------------------------------------------------- using System; using System.Collections.Generic; using System.Diagnostics; using System.Globalization; using System.Text; namespace System.Data.Common.Utils { ////// Represents a node in a hierarchical collection of information strings. /// Intended as a common way mechanism to represent tree structures for debugging (using the TreePrinter class). /// A node consists of a string (represented as a StringBuilder), its collection of child nodes, and an optional Tag value. /// internal class TreeNode { private StringBuilder _text; private List_children = new List (); private int _position; // Default constructor internal TreeNode() { _text = new StringBuilder(); } /// /// Constructs a new TreeNode with the specified text, tag value and child nodes /// /// The initial value of the new node's text /// An optional list of initial child nodes internal TreeNode(string text, params TreeNode[] children) { if (string.IsNullOrEmpty(text)) { _text = new StringBuilder(); } else { _text = new StringBuilder(text); } if (children != null) { _children.AddRange(children); } } // IEnumerable convenience constructors internal TreeNode(string text, Listchildren) : this(text) { if (children != null) { _children.AddRange(children); } } // 'public' properties /// /// The current text of this node. /// internal StringBuilder Text { get { return _text; } } ////// The collection of child nodes for this node, which may be empty. /// internal IListChildren { get { return _children; } } // Used only by the TreePrinter when generating the output string internal int Position { get { return _position; } set { _position = value; } } } /// /// Generates a formatted string from a hierarchy of tree nodes. Derived types may override /// the PreProcess, Before/AfterAppend, Print, PrintNode and PrintChildren methods to add /// specific functionality at particular points in process of building the string. /// internal abstract class TreePrinter { #region Private Instance Members private List_scopes = new List (); private bool _showLines = true; private char _horizontals = '_'; private char _verticals = '|'; #endregion #region 'Public' API /// /// Entry point method for the TreePrinter /// /// The TreeNode instance that is the root of the tree to be printed ///A string representation of the specified tree internal virtual string Print(TreeNode node) { this.PreProcess(node); StringBuilder text = new StringBuilder(); PrintNode(text, node); return text.ToString(); } #endregion #region 'Protected' API // 'protected' constructor internal TreePrinter() { } // 'protected' API that may be overriden to customize printing ////// Called once on the root of the tree before printing begins /// /// The TreeNode that is the root of the tree internal virtual void PreProcess(TreeNode node) { } ////// Called once for every node after indentation, connecting lines and the node's text value /// have been added to the output but before the line suffix (if any) has been added. /// /// The current node /// The StringBuilder into which the tree is being printed internal virtual void AfterAppend(TreeNode node, StringBuilder text) { } ////// Called once for every node immediately after the line prefix (if any) and appropriate /// indentation and connecting lines have been added to the output but before the node's /// text value has been added. /// /// The current node /// The StringBuilder into which the tree is being printed internal virtual void BeforeAppend(TreeNode node, StringBuilder text) { } ////// The recursive step of the printing process, called once for each TreeNode in the tree /// /// The StringBuilder into which the tree is being printed /// The current node that should be printed to the StringBuilder internal virtual void PrintNode(StringBuilder text, TreeNode node) { IndentLine(text); this.BeforeAppend(node, text); text.Append(node.Text.ToString()); this.AfterAppend(node, text); PrintChildren(text, node); } ////// Called to recursively visit the child nodes of the current TreeNode. /// /// The StringBuilder into which the tree is being printed /// The current node internal virtual void PrintChildren(StringBuilder text, TreeNode node) { _scopes.Add(node); node.Position = 0; foreach (TreeNode childNode in node.Children) { text.AppendLine(); node.Position++; PrintNode(text, childNode); } _scopes.RemoveAt(_scopes.Count - 1); } #endregion #region Private Implementation private void IndentLine(StringBuilder text) { int idx = 0; for (int scopeIdx = 0; scopeIdx < _scopes.Count; scopeIdx++) { TreeNode parentScope = _scopes[scopeIdx]; if (!_showLines || (parentScope.Position == parentScope.Children.Count && scopeIdx != _scopes.Count - 1)) { text.Append(' '); } else { text.Append(_verticals); } idx++; if (_scopes.Count == idx && _showLines) { text.Append(_horizontals); } else { text.Append(' '); } } } #endregion } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....] //--------------------------------------------------------------------- using System; using System.Collections.Generic; using System.Diagnostics; using System.Globalization; using System.Text; namespace System.Data.Common.Utils { ////// Represents a node in a hierarchical collection of information strings. /// Intended as a common way mechanism to represent tree structures for debugging (using the TreePrinter class). /// A node consists of a string (represented as a StringBuilder), its collection of child nodes, and an optional Tag value. /// internal class TreeNode { private StringBuilder _text; private List_children = new List (); private int _position; // Default constructor internal TreeNode() { _text = new StringBuilder(); } /// /// Constructs a new TreeNode with the specified text, tag value and child nodes /// /// The initial value of the new node's text /// An optional list of initial child nodes internal TreeNode(string text, params TreeNode[] children) { if (string.IsNullOrEmpty(text)) { _text = new StringBuilder(); } else { _text = new StringBuilder(text); } if (children != null) { _children.AddRange(children); } } // IEnumerable convenience constructors internal TreeNode(string text, Listchildren) : this(text) { if (children != null) { _children.AddRange(children); } } // 'public' properties /// /// The current text of this node. /// internal StringBuilder Text { get { return _text; } } ////// The collection of child nodes for this node, which may be empty. /// internal IListChildren { get { return _children; } } // Used only by the TreePrinter when generating the output string internal int Position { get { return _position; } set { _position = value; } } } /// /// Generates a formatted string from a hierarchy of tree nodes. Derived types may override /// the PreProcess, Before/AfterAppend, Print, PrintNode and PrintChildren methods to add /// specific functionality at particular points in process of building the string. /// internal abstract class TreePrinter { #region Private Instance Members private List_scopes = new List (); private bool _showLines = true; private char _horizontals = '_'; private char _verticals = '|'; #endregion #region 'Public' API /// /// Entry point method for the TreePrinter /// /// The TreeNode instance that is the root of the tree to be printed ///A string representation of the specified tree internal virtual string Print(TreeNode node) { this.PreProcess(node); StringBuilder text = new StringBuilder(); PrintNode(text, node); return text.ToString(); } #endregion #region 'Protected' API // 'protected' constructor internal TreePrinter() { } // 'protected' API that may be overriden to customize printing ////// Called once on the root of the tree before printing begins /// /// The TreeNode that is the root of the tree internal virtual void PreProcess(TreeNode node) { } ////// Called once for every node after indentation, connecting lines and the node's text value /// have been added to the output but before the line suffix (if any) has been added. /// /// The current node /// The StringBuilder into which the tree is being printed internal virtual void AfterAppend(TreeNode node, StringBuilder text) { } ////// Called once for every node immediately after the line prefix (if any) and appropriate /// indentation and connecting lines have been added to the output but before the node's /// text value has been added. /// /// The current node /// The StringBuilder into which the tree is being printed internal virtual void BeforeAppend(TreeNode node, StringBuilder text) { } ////// The recursive step of the printing process, called once for each TreeNode in the tree /// /// The StringBuilder into which the tree is being printed /// The current node that should be printed to the StringBuilder internal virtual void PrintNode(StringBuilder text, TreeNode node) { IndentLine(text); this.BeforeAppend(node, text); text.Append(node.Text.ToString()); this.AfterAppend(node, text); PrintChildren(text, node); } ////// Called to recursively visit the child nodes of the current TreeNode. /// /// The StringBuilder into which the tree is being printed /// The current node internal virtual void PrintChildren(StringBuilder text, TreeNode node) { _scopes.Add(node); node.Position = 0; foreach (TreeNode childNode in node.Children) { text.AppendLine(); node.Position++; PrintNode(text, childNode); } _scopes.RemoveAt(_scopes.Count - 1); } #endregion #region Private Implementation private void IndentLine(StringBuilder text) { int idx = 0; for (int scopeIdx = 0; scopeIdx < _scopes.Count; scopeIdx++) { TreeNode parentScope = _scopes[scopeIdx]; if (!_showLines || (parentScope.Position == parentScope.Children.Count && scopeIdx != _scopes.Count - 1)) { text.Append(' '); } else { text.Append(_verticals); } idx++; if (_scopes.Count == idx && _showLines) { text.Append(_horizontals); } else { text.Append(' '); } } } #endregion } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- FileUtil.cs
- CanonicalizationDriver.cs
- SimpleTextLine.cs
- ScrollChrome.cs
- TimeStampChecker.cs
- IncomingWebResponseContext.cs
- FontDifferentiator.cs
- DebugViewWriter.cs
- ToolZone.cs
- WhitespaceRuleReader.cs
- AspNetSynchronizationContext.cs
- ValueType.cs
- MobileUserControl.cs
- GCHandleCookieTable.cs
- KerberosSecurityTokenAuthenticator.cs
- DataQuery.cs
- IriParsingElement.cs
- AdornerPresentationContext.cs
- XmlWrappingReader.cs
- EditingCommands.cs
- HttpProtocolReflector.cs
- BoundingRectTracker.cs
- PrinterSettings.cs
- WebBrowserHelper.cs
- X509Chain.cs
- Rect.cs
- DataGridHeadersVisibilityToVisibilityConverter.cs
- GridViewColumnHeaderAutomationPeer.cs
- MetadataSource.cs
- TextClipboardData.cs
- MenuBindingsEditor.cs
- WindowsSlider.cs
- EntryWrittenEventArgs.cs
- TraceUtility.cs
- XPathNavigatorKeyComparer.cs
- AnnotationResourceChangedEventArgs.cs
- RefreshPropertiesAttribute.cs
- SqlClientWrapperSmiStreamChars.cs
- GenericTypeParameterBuilder.cs
- DataGridHeaderBorder.cs
- SqlUserDefinedTypeAttribute.cs
- CorrelationKey.cs
- NamespaceListProperty.cs
- PingReply.cs
- RepeaterItemEventArgs.cs
- Transform.cs
- DataGridViewAutoSizeColumnModeEventArgs.cs
- XmlLoader.cs
- COM2ICategorizePropertiesHandler.cs
- DataServiceStreamProviderWrapper.cs
- ACE.cs
- IntPtr.cs
- ConsoleKeyInfo.cs
- SectionVisual.cs
- AuthenticatingEventArgs.cs
- EntityModelBuildProvider.cs
- WebPartDescription.cs
- ProcessModelSection.cs
- ListViewSortEventArgs.cs
- TextModifier.cs
- SecurityHeaderLayout.cs
- ForwardPositionQuery.cs
- DiscardableAttribute.cs
- HMACSHA512.cs
- PixelShader.cs
- OleDbStruct.cs
- CodePageEncoding.cs
- XhtmlBasicObjectListAdapter.cs
- ExpandCollapsePattern.cs
- OdbcEnvironmentHandle.cs
- LongPath.cs
- Tag.cs
- ListViewHitTestInfo.cs
- InputProcessorProfiles.cs
- WorkflowFormatterBehavior.cs
- GlyphRunDrawing.cs
- RequestCacheValidator.cs
- MatcherBuilder.cs
- ScriptIgnoreAttribute.cs
- HttpVersion.cs
- XmlILTrace.cs
- TransformPattern.cs
- ApplicationHost.cs
- InstanceCompleteException.cs
- BoundField.cs
- InfoCardRSAPKCS1SignatureFormatter.cs
- ErrorFormatter.cs
- DoubleCollection.cs
- _CommandStream.cs
- TrustManagerMoreInformation.cs
- LicenseProviderAttribute.cs
- Visual.cs
- TreeSet.cs
- ToolstripProfessionalRenderer.cs
- ListMarkerSourceInfo.cs
- XmlSchemaChoice.cs
- KeyProperty.cs
- IPPacketInformation.cs
- CLRBindingWorker.cs
- ControlBindingsCollection.cs