Browse Source
git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/trunk@4695 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61shortcuts
Daniel Grunwald
16 years ago
5 changed files with 0 additions and 209 deletions
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@@ -1,19 +0,0 @@
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// <file>
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// <copyright see="prj:///doc/copyright.txt"/>
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// <license see="prj:///doc/license.txt"/>
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// <owner name="Mike Krüger" email="mike@icsharpcode.net"/>
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// <version>$Revision$</version>
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// </file>
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namespace ICSharpCode.SharpDevelop.Internal.Undo |
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{ |
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/// <summary>
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/// This Interface describes a the basic Undo/Redo operation
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/// all Undo Operations must implement this interface.
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/// </summary>
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public interface IUndoableOperation |
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{ |
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void Undo(); |
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void Redo(); |
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} |
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} |
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// <file>
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// <copyright see="prj:///doc/copyright.txt"/>
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// <license see="prj:///doc/license.txt"/>
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// <owner name="Mike Krüger" email="mike@icsharpcode.net"/>
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// <version>$Revision$</version>
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// </file>
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using System; |
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using System.Collections.Generic; |
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namespace ICSharpCode.SharpDevelop.Internal.Undo |
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{ |
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/// <summary>
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/// This class stacks the last x operations from the undostack and makes
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/// one undo/redo operation from it.
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/// </summary>
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internal class UndoQueue : IUndoableOperation |
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{ |
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List<IUndoableOperation> undolist = new List<IUndoableOperation>(); |
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public UndoQueue(UndoStack stack, int numops) |
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{ |
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if (stack == null) { |
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throw new ArgumentNullException("stack"); |
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} |
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System.Diagnostics.Debug.Assert(numops > 0 , "ICSharpCode.SharpDevelop.Internal.Undo.UndoQueue : numops should be > 0"); |
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for (int i = 0; i < numops; ++i) { |
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if (stack._UndoStack.Count > 0) { |
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undolist.Add(stack._UndoStack.Pop()); |
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} |
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} |
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} |
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public void Undo() |
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{ |
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for (int i = 0; i < undolist.Count; ++i) { |
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undolist[i].Undo(); |
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} |
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} |
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public void Redo() |
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{ |
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for (int i = undolist.Count - 1 ; i >= 0 ; --i) { |
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((IUndoableOperation)undolist[i]).Redo(); |
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} |
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} |
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} |
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} |
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@@ -1,126 +0,0 @@
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// <file>
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// <copyright see="prj:///doc/copyright.txt"/>
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// <license see="prj:///doc/license.txt"/>
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// <owner name="Mike Krüger" email="mike@icsharpcode.net"/>
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// <version>$Revision$</version>
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// </file>
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using System; |
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using System.Collections.Generic; |
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namespace ICSharpCode.SharpDevelop.Internal.Undo |
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{ |
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/// <summary>
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/// This class implements an undo stack
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/// </summary>
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public class UndoStack |
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{ |
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Stack<IUndoableOperation> undostack = new Stack<IUndoableOperation>(); |
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Stack<IUndoableOperation> redostack = new Stack<IUndoableOperation>(); |
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public event EventHandler ActionUndone; |
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public event EventHandler ActionRedone; |
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public bool AcceptChanges = true; |
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/// <summary>
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/// This property is EXCLUSIVELY for the UndoQueue class, don't USE it
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/// </summary>
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internal Stack<IUndoableOperation> _UndoStack { |
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get { |
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return undostack; |
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} |
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} |
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public bool CanUndo { |
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get { |
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return undostack.Count > 0; |
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} |
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} |
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public bool CanRedo { |
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get { |
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return redostack.Count > 0; |
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} |
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} |
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// /// <summary>
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// /// You call this method to pool the last x operations from the undo stack
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// /// to make 1 operation from it.
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// /// </summary>
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// public void UndoLast(int x)
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// {
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// undostack.Push(new UndoQueue(this, x));
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// }
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/// <summary>
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/// Call this method to undo the last operation on the stack
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/// </summary>
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public void Undo() |
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{ |
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if (undostack.Count > 0) { |
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IUndoableOperation uedit = (IUndoableOperation)undostack.Pop(); |
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redostack.Push(uedit); |
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uedit.Undo(); |
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OnActionUndone(); |
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} |
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} |
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/// <summary>
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/// Call this method to redo the last undone operation
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/// </summary>
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public void Redo() |
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{ |
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if (redostack.Count > 0) { |
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IUndoableOperation uedit = (IUndoableOperation)redostack.Pop(); |
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undostack.Push(uedit); |
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uedit.Redo(); |
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OnActionRedone(); |
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} |
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} |
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/// <summary>
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/// Call this method to push an UndoableOperation on the undostack, the redostack
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/// will be cleared, if you use this method.
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/// </summary>
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public void Push(IUndoableOperation operation) |
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{ |
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if (operation == null) { |
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throw new ArgumentNullException("UndoStack.Push(UndoableOperation operation) : operation can't be null"); |
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} |
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if (AcceptChanges) { |
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undostack.Push(operation); |
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ClearRedoStack(); |
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} |
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} |
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/// <summary>
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/// Call this method, if you want to clear the redo stack
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/// </summary>
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public void ClearRedoStack() |
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{ |
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redostack.Clear(); |
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} |
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public void ClearAll() |
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{ |
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undostack.Clear(); |
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redostack.Clear(); |
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} |
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protected void OnActionUndone() |
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{ |
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if (ActionUndone != null) { |
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ActionUndone(null, null); |
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} |
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} |
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protected void OnActionRedone() |
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{ |
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if (ActionRedone != null) { |
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ActionRedone(null, null); |
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} |
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} |
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} |
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} |
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