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Command.cs
Package: DrawTools2005.rar [view]
Upload User: sxsgcs
Upload Date: 2013-10-21
Package Size: 110k
Code Size: 1k
Category:
CAD
Development Platform:
C#
- using System;
- using System.Collections.Generic;
- using System.Text;
- /// Undo-Redo code is written using the article:
- /// http://www.codeproject.com/cs/design/commandpatterndemo.asp
- // The Command Pattern and MVC Architecture
- // By David Veeneman.
- namespace DrawTools
- {
- /// <summary>
- /// Base class for commands used for Undo - Redo
- /// </summary>
- abstract class Command
- {
- // This function is used to make Undo operation.
- // It makes action opposite to the original command.
- public abstract void Undo(GraphicsList list);
- // This command is used to make Redo operation.
- // It makes original command again.
- public abstract void Redo(GraphicsList list);
- // Derived classes have members which contain enough information
- // to make Undo and Redo operations for every specific command.
- }
- }