Added copy/paste to instruction editing grid

Controls/Grid/InstructionGridControl.cs

@@ -22,6 +22,8 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
 #region Imports
 
 using System;
+using System.Collections.Generic;
+using System.Linq;
 using System.Windows.Forms;
 using Mono.Cecil;
 using Mono.Cecil.Cil;
@@ -34,11 +36,14 @@ namespace Reflexil.Editors
 {
 	public partial class InstructionGridControl : BaseInstructionGridControl
 	{
-		#region Methods
+
+
+	    #region Methods
 
 		public InstructionGridControl()
 		{
 			InitializeComponent();
+            _copiedItems = new List<Instruction>();
 		}
 
 		protected override void GridContextMenuStrip_Opened(object sender, EventArgs e)
@@ -48,6 +53,9 @@ protected override void GridContextMenuStrip_Opened(object sender, EventArgs e)
 			MenReplaceBody.Enabled = (!ReadOnly) && (OwnerDefinition != null) && (OwnerDefinition.Body != null);
 			MenDelete.Enabled = (!ReadOnly) && (SelectedItems.Length > 0);
 			MenDeleteAll.Enabled = (!ReadOnly) && (OwnerDefinition != null) && (OwnerDefinition.Body != null);
+
+		    MenCopy.Enabled = (!ReadOnly) && (SelectedItems.Length > 0);
+		    MenPaste.Enabled = (!ReadOnly) && (FirstSelectedItem != null) && (_copiedItems.Count > 0);
 		}
 
 		protected override void MenCreate_Click(object sender, EventArgs e)
@@ -158,6 +166,27 @@ private void MenReplaceNop_Click(object sender, EventArgs e)
 			RaiseGridUpdated();
 		}
 
+	    private readonly List<Instruction> _copiedItems;
+
+	    private void MenCopy_Click(object sender, EventArgs e)
+	    {
+            _copiedItems.Clear();
+            foreach (var item in SelectedItems)
+	        {
+	            _copiedItems.Add(item);
+	        }
+	    }
+
+	    private void MenPaste_Click(object sender, EventArgs e)
+	    {
+	        foreach (var item in _copiedItems)
+	        {
+                var copy = new Instruction(item.OpCode, item.Operand);
+	            OwnerDefinition.Body.GetILProcessor().InsertAfter(FirstSelectedItem, copy);
+	        }
+            RaiseGridUpdated();
+        }
+
 		#endregion
 	}