QuickImage – Rev 1

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using System;

namespace CraftSynth.ImageEditor
{
        /// <summary>
        /// Add new object command
        /// </summary>
        internal class CommandAdd : Command, IDisposable
        {
                private DrawObject drawObject;

                // Create this command with DrawObject instance added to the list
                public CommandAdd(DrawObject drawObject) : base()
                {
                        // Keep copy of added object
                        this.drawObject = drawObject.Clone();
                }

                /// <summary>
                /// Undo last Add command
                /// </summary>
                /// <param name="list">Layers collection</param>
                public override void Undo(Layers list)
                {
                        list[list.ActiveLayerIndex].Graphics.DeleteLastAddedObject();
                }

                /// <summary>
                /// Redo last Add command
                /// </summary>
                /// <param name="list">Layers collection</param>
                public override void Redo(Layers list)
                {
                        list[list.ActiveLayerIndex].Graphics.UnselectAll();
                        list[list.ActiveLayerIndex].Graphics.Add(drawObject);
                        
                        if (drawObject is DrawImage && (drawObject as DrawImage).IsInitialImage)
                        {
                                drawObject.Selected = true;
                                list[list.ActiveLayerIndex].Graphics.MoveSelectionToBack();
                                list[list.ActiveLayerIndex].Graphics.UnselectAll();
                        }
                }

                #region Destruction
                // Flag: Has Dispose already been called? 
                bool _disposed = false;

                // Protected implementation of Dispose pattern. 
                public override void Dispose(bool disposing)
                {
                        if (!this._disposed)
                        {

                                if (disposing)
                                {
                                        // Free any managed objects here. 
                                        //
                                        if (this.drawObject != null)
                                        {
                                                this.drawObject.Dispose();
                                        }
                                }

                                // Free any unmanaged objects here. 
                                //

                                this._disposed = true;
                        }
                }

                ~CommandAdd()
                {
                         this.Dispose(false);
                }
                #endregion
        }
}

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