2

.vs/VSWorkspaceState.json

@@ -4,6 +4,6 @@
     "\\KursiveWork",
     "\\KursiveWork\\KursiveWork"
   ],
-  "SelectedNode": "\\KursiveWork\\KursiveWork\\infoform.cs",
+  "SelectedNode": "\\KursiveWork\\KursiveWork\\MainForm.cs",
   "PreviewInSolutionExplorer": false
 }

KursiveWork/KursiveWork/LinkedListStorage.cs

@@ -102,7 +102,7 @@ public class LinkedListStorage
     }
     public List<LinkedListState> Load(string filename)
     {
-        states.Clear();
+        //states.Clear();
         currentIndex = 0;
 
         using (BinaryReader reader = new BinaryReader(File.Open(filename, FileMode.Open)))

KursiveWork/KursiveWork/LinkedListVisualizer.cs

@@ -22,10 +22,18 @@ public class LinkedListVisualizer
         {
             // Заливка фона
             g.Clear(Color.White);
-
+            //Отрисовка головы
+            g.DrawString("Head", new Font("Arial", 12), Brushes.Black, new Point(10, 15));
+            g.DrawLine(Pens.Black, 55, 25, 20 + NodeWidth + NodeSpacing, 25);
+            g.DrawPolygon(Pens.Black, new Point[] {
+                            new Point(28 + NodeWidth + NodeSpacing, 25),
+                            new Point(28 + NodeWidth + NodeSpacing - 5, 20),
+                            new Point(28 + NodeWidth + NodeSpacing - 5, 30)
+                        });
             // Рисование узлов
             Node current = state.Head;
-            int x = NodeSpacing;
+            int x = 70 + NodeSpacing;
+            
             while (current != null)
             {
                 // Рисование узла
@@ -35,17 +43,36 @@ public class LinkedListVisualizer
                 // Рисование стрелки
                 if (current.Next != null)
                 {
-                    g.DrawLine(Pens.Black, x + NodeWidth, 25, x + NodeWidth + NodeSpacing, 25);
+                    g.DrawLine(Pens.Black, x + NodeWidth, 25, x + NodeWidth + NodeSpacing - 7, 25);
                     g.DrawPolygon(Pens.Black, new Point[] {
                             new Point(x + NodeWidth + NodeSpacing, 25),
-                            new Point(x + NodeWidth + NodeSpacing + 5, 20),
-                            new Point(x + NodeWidth + NodeSpacing + 5, 30)
+                            new Point(x + NodeWidth + NodeSpacing - 5, 20),
+                            new Point(x + NodeWidth + NodeSpacing - 5, 30)
+                        });
+                }
+                else
+                {
+                    g.DrawLine(Pens.Black, x + NodeWidth, 25, x + NodeWidth + NodeSpacing - 7, 25);
+                    g.DrawPolygon(Pens.Black, new Point[] {
+                            new Point(x + NodeWidth + NodeSpacing, 25),
+                            new Point(x + NodeWidth + NodeSpacing - 5, 20),
+                            new Point(x + NodeWidth + NodeSpacing - 5, 30)
                         });
                 }
 
                 x += NodeWidth + NodeSpacing;
                 current = current.Next;
             }
+            if (current == null)
+            {
+                //g.DrawLine(Pens.Black, x + NodeWidth - 50, 25, x + NodeWidth + NodeSpacing - 50, 25);
+                //g.DrawPolygon(Pens.Black, new Point[] {
+                //            new Point(x + NodeWidth + NodeSpacing - 50, 25),
+                //            new Point(x + NodeWidth + NodeSpacing - 55, 20),
+                //            new Point(x + NodeWidth + NodeSpacing - 55, 30)
+                //        });
+                g.DrawString("NULL", new Font("Arial", 12), Brushes.Black, new Point(x + NodeWidth / 2 - 15, 15));
+            }
         }
         return bitmap;
     }

KursiveWork/KursiveWork/MainForm.cs

@@ -32,6 +32,7 @@ namespace KursiveWork
             manager = new LinkedListManager(parameters);
             Controls.Add(pictureBox);
             pictureBox.Image = visualizer.Visualize(list.CreateState());
+            manager.storage.AddState(list.CreateState());
         }
 
         private void ButtonAdd_Click(object sender, EventArgs e)
@@ -123,7 +124,9 @@ namespace KursiveWork
             if (saveFileDialog.FileName != "")
             {
                 manager.storage.Save(saveFileDialog.FileName); // Сохраняем в текстовый файл
+                MessageBox.Show("Файл сохранен");
             }
+            else MessageBox.Show("Ошибка сохранения");
         }
 
         private void LoadToolStripMenuItem_Click(object sender, EventArgs e)