Лабораторная работа № 6

ProjectTrolleybus/ProjectTrolleybus/CollectionGenericObjects/AbstractCompany.cs

@@ -46,7 +46,7 @@ public abstract class AbstractCompany
         _pictureWidth = picWidth;
         _pictureHeight = picHeight;
         _collection = collection;
-        _collection.SetMaxCount = GetMaxCount;
+        _collection.MaxCount = GetMaxCount;
     }
 
     /// <summary>

ProjectTrolleybus/ProjectTrolleybus/CollectionGenericObjects/ICollectionGenericObjects.cs

@@ -15,7 +15,7 @@ public interface ICollectionGenericObjects<T>
     /// <summary>
     /// Установка максимального кол-ва объектов
     /// </summary>
-    int SetMaxCount { set; }
+    int MaxCount { get; set; }
 
     /// <summary>
     /// Добавление объекта в коллецию
@@ -44,4 +44,16 @@ public interface ICollectionGenericObjects<T>
     /// <param name="position">Позиция</param>
     /// <returns>Объект</returns>
     T? Get(int position);
+
+    /// <summary>
+    /// Получение типа коллекции
+    /// </summary>
+    CollectionType GetCollectionType { get; }
+
+    /// <summary>
+    /// Получение объектов коллекции по одному
+    /// </summary>
+    /// <returns>Поэлементный вывод элементов коллекции</returns>
+    IEnumerable<T?> GetItems();
+
 }

ProjectTrolleybus/ProjectTrolleybus/CollectionGenericObjects/ListGenericObjects.cs

@@ -19,7 +19,9 @@ public class ListGenericObjects<T> : ICollectionGenericObjects<T>
 
     public int Count => _collection.Count;
 
-    public int SetMaxCount { set { if (value > 0) { _maxCount = value; } } }
+    public int MaxCount { get { return _collection.Count; } set { if (value > 0) { _maxCount = value; } } }
+
+    public CollectionType GetCollectionType => CollectionType.List;
 
     /// <summary>
     /// конструктор
@@ -68,4 +70,12 @@ public class ListGenericObjects<T> : ICollectionGenericObjects<T>
         }
         return null;
     }
+
+    public IEnumerable<T?> GetItems()
+    {
+        for (int i = 0; i < _collection.Count; i++)
+        {
+            yield return _collection[i];
+        }
+    }
 }

ProjectTrolleybus/ProjectTrolleybus/CollectionGenericObjects/MassiveGenericObjects.cs

@@ -14,8 +14,13 @@ public class MassiveGenericObjects<T> : ICollectionGenericObjects<T>
 
     public int Count => _collection.Length;
 
-    public int SetMaxCount
+    public int MaxCount
     {
+        get
+        {
+            return _collection.Length;
+        }
+
         set
         {
             if (value > 0)
@@ -32,6 +37,10 @@ public class MassiveGenericObjects<T> : ICollectionGenericObjects<T>
         }
     }
 
+
+    public CollectionType GetCollectionType => CollectionType.Massive;
+
+
     /// <summary>
     /// Конструктор
     /// </summary>
@@ -119,4 +128,13 @@ public class MassiveGenericObjects<T> : ICollectionGenericObjects<T>
         _collection[position] = null;
         return temp;
     }
+
+    public IEnumerable<T?> GetItems()
+    {
+        for (int i = 0; i < _collection.Length; i++)
+        {
+            yield return _collection[i];
+        }
+    }
+
 }

ProjectTrolleybus/ProjectTrolleybus/CollectionGenericObjects/StorageCollection.cs

@@ -1,11 +1,14 @@
-namespace ProjectTrolleybus.CollectionGenericObjects;
+using ProjectTrolleybus.Drawnings;
+using System.Text;
+
+namespace ProjectTrolleybus.CollectionGenericObjects;
 
 /// <summary>
 /// Класс-хранилище коллекций
 /// </summary>
 /// <typeparam name="T"></typeparam>
 public class StorageCollection<T>
-    where T : class
+    where T : DrawningTrolleyB
 {
     /// <summary>
     /// Словарь (хранилище) с коллекциями
@@ -16,7 +19,22 @@ public class StorageCollection<T>
     /// Возвращение списка названий коллекций
     /// </summary>
     public List<string> Keys => _storages.Keys.ToList();
-    
+
+    /// <summary>
+    /// Ключевое слово, с которого должен начинаться файл
+    /// </summary>
+    private readonly string _collectionKey = "CollectionStorage";
+
+    /// <summary>
+    /// Разделитель для записи ключа и значения элемента словаря
+    /// </summary>
+    private readonly string _separatorForKeyValue = "|";
+
+    /// <summary>
+    /// Разделитель для записей коллекции данных в файл
+    /// </summary>
+    private readonly string _separatorItems = ";";
+
     /// <summary>
     /// Конструктор
     /// </summary>
@@ -69,4 +87,145 @@ public class StorageCollection<T>
             return null;
         }
     }
+
+    /// <summary>
+    /// Сохранение информации по автомобилям в хранилище в файл
+    /// </summary>
+    /// <param name="filename">Путь и имя файла</param>
+    /// <returns>true - сохранение прошло успешно, false - ошибка при сохранении данных</returns>
+    public bool SaveData(string filename)
+    {
+        if (_storages.Count == 0)
+        {
+            return false;
+        }
+
+        if (File.Exists(filename))
+        {
+            File.Delete(filename);
+        }
+
+        StringBuilder sb = new();
+
+        sb.Append(_collectionKey);
+        foreach (KeyValuePair<string, ICollectionGenericObjects<T>> value in _storages)
+        {
+            sb.Append(Environment.NewLine);
+            // не сохраняем пустые коллекции
+            if (value.Value.Count == 0)
+            {
+                continue;
+            }
+
+            sb.Append(value.Key);
+            sb.Append(_separatorForKeyValue);
+            sb.Append(value.Value.GetCollectionType);
+            sb.Append(_separatorForKeyValue);
+            sb.Append(value.Value.MaxCount);
+            sb.Append(_separatorForKeyValue);
+
+            foreach (T? item in value.Value.GetItems())
+            {
+                string data = item?.GetDataForSave() ?? string.Empty;
+                if (string.IsNullOrEmpty(data))
+                {
+                    continue;
+                }
+
+                sb.Append(data);
+                sb.Append(_separatorItems);
+            }
+        }
+
+        using FileStream fs = new(filename, FileMode.Create);
+        byte[] info = new UTF8Encoding(true).GetBytes(sb.ToString());
+        fs.Write(info, 0, info.Length);
+        return true;
+    }
+
+    /// <summary>
+    /// Загрузка информации по автомобилям в хранилище из файла
+    /// </summary>
+    /// <param name="filename">Путь и имя файла</param>
+    /// <returns>true - загрузка прошла успешно, false - ошибка при загрузке данных</returns>
+    public bool LoadData(string filename)
+    {
+        if (!File.Exists(filename))
+        {
+            return false;
+        }
+
+        string bufferTextFromFile = "";
+        using (FileStream fs = new(filename, FileMode.Open))
+        {
+            byte[] b = new byte[fs.Length];
+            UTF8Encoding temp = new(true);
+            while (fs.Read(b, 0, b.Length) > 0)
+            {
+                bufferTextFromFile += temp.GetString(b);
+            }
+        }
+
+        string[] strs = bufferTextFromFile.Split(new char[] { '\n', '\r' }, StringSplitOptions.RemoveEmptyEntries);
+        if (strs == null || strs.Length == 0)
+        {
+            return false;
+        }
+
+        if (!strs[0].Equals(_collectionKey))
+        {
+            //если нет такой записи, то это не те данные
+            return false;
+        }
+
+        _storages.Clear();
+        foreach (string data in strs)
+        {
+            string[] record = data.Split(_separatorForKeyValue, StringSplitOptions.RemoveEmptyEntries);
+            if (record.Length != 4)
+            {
+                continue;
+            }
+
+            CollectionType collectionType = (CollectionType)Enum.Parse(typeof(CollectionType), record[1]);
+            ICollectionGenericObjects<T>? collection = StorageCollection<T>.CreateCollection(collectionType);
+            if (collection == null)
+            {
+                return false;
+            }
+
+            collection.MaxCount = Convert.ToInt32(record[2]);
+
+            string[] set = record[3].Split(_separatorItems, StringSplitOptions.RemoveEmptyEntries);
+            foreach (string elem in set)
+            {
+                if (elem?.CreateDrawningTrolleyB() is T trolleyB)
+                {
+                    if (collection.Insert(trolleyB) == -1)
+                    {
+                        return false;
+                    }
+                }
+            }
+
+            _storages.Add(record[0], collection);
+        }
+
+        return true;
+    }
+
+    /// <summary>
+    /// Создание коллекции по типу
+    /// </summary>
+    /// <param name="collectionType"></param>
+    /// <returns></returns>
+    private static ICollectionGenericObjects<T>? CreateCollection(CollectionType collectionType)
+    {
+        return collectionType switch
+        {
+            CollectionType.Massive => new MassiveGenericObjects<T>(),
+            CollectionType.List => new ListGenericObjects<T>(),
+            _ => null,
+        };
+    }
 }

ProjectTrolleybus/ProjectTrolleybus/Drawnings/DrawningTrolleyB.cs

@@ -62,7 +62,7 @@ public class DrawningTrolleyB
     /// <summary>
     /// Пустой конструктор
     /// </summary>
-    private DrawningTrolleyB()
+    public DrawningTrolleyB()
     {
         _pictureHeight = null;
         _pictureWidth = null;
@@ -93,6 +93,15 @@ public class DrawningTrolleyB
         _drawningVehicleHeight = drawningVehicleHeight;
     }
 
+    /// <summary>
+    /// Конструктор, принимающий объект EntityTrolleyB в качестве параметра
+    /// </summary>
+    /// <param name="entityBulldozer"></param>
+    public DrawningTrolleyB(EntityTrolleyB entityTrolleyB)
+    {
+        EntityTrolleyB = entityTrolleyB;
+    }
+
     /// <summary>
     /// Установка границ поля
     /// </summary>

ProjectTrolleybus/ProjectTrolleybus/Drawnings/DrawningTrolleybus.cs

@@ -22,6 +22,15 @@ public class DrawningTrolleybus : DrawningTrolleyB
         EntityTrolleyB = new EntityTrolleybus(speed, weight, bodyColor, additionalColor, batteryCompartment, horns);
     }
 
+    /// <summary>
+    /// Конструктор, принимающий объект EntityTrolleyB в качестве параметра
+    /// </summary>
+    /// <param name="entityBulldozer"></param>
+    public DrawningTrolleybus(EntityTrolleyB entityTrolleyB)
+    {
+        EntityTrolleyB = entityTrolleyB;
+    }
+
     public override void DrawTransport(Graphics g)
     {
 

ProjectTrolleybus/ProjectTrolleybus/Drawnings/ExtentionDrawningTrolleyB.cs

@@ -0,0 +1,54 @@
+using ProjectTrolleybus.Entities;
+
+namespace ProjectTrolleybus.Drawnings;
+
+/// <summary>
+/// Расширение для класса EntityTrolleyB
+/// </summary>
+public static class ExtentionDrawningTrolleyB
+{
+    /// <summary>
+    /// Разделитель для записи информации по объекту в файл
+    /// </summary>
+    private static readonly string _separatorForObject = ":";
+
+    /// <summary>
+    /// Создание объекта из строки
+    /// </summary>
+    /// <param name="info">Строка с данными для создания объекта</param>
+    /// <returns>Объект</returns>
+    public static DrawningTrolleyB? CreateDrawningTrolleyB(this string info)
+    {
+        string[] strs = info.Split(_separatorForObject);
+        EntityTrolleyB? trolleyB = EntityTrolleybus.CreateEntityTrolleybus(strs);
+        if (trolleyB != null)
+        {
+            return new DrawningTrolleybus((EntityTrolleybus)trolleyB);
+        }
+
+        trolleyB = EntityTrolleyB.CreateEntityTrolleyB(strs);
+        if (trolleyB != null)
+        {
+            return new DrawningTrolleyB(trolleyB);
+        }
+
+        return null;
+    }
+
+    /// <summary>
+    /// Получение данных для сохранения в файл
+    /// </summary>
+    /// <param name="drawningTrolleyB">Сохраняемый объект</param>
+    /// <returns>Строка с данными по объекту</returns>
+    public static string GetDataForSave(this DrawningTrolleyB drawningTrolleyB)
+    {
+        string[]? array = drawningTrolleyB?.EntityTrolleyB?.GetStringRepresentation();
+
+        if (array == null)
+        {
+            return string.Empty;
+        }
+
+        return string.Join(_separatorForObject, array);
+    }
+}

ProjectTrolleybus/ProjectTrolleybus/Entities/EntityTrolleyB.cs

@@ -43,4 +43,28 @@ public class EntityTrolleyB
         Weight = weight;
         BodyColor = bodyColor;
     }
+
+    /// <summary>
+    /// Получение строк со значениями свойств объекта класса-сущности
+    /// </summary>
+    /// <returns></returns>
+    public virtual string[] GetStringRepresentation()
+    {
+        return new[] { nameof(EntityTrolleyB), Speed.ToString(), Weight.ToString(), BodyColor.Name };
+    }
+
+    /// <summary>
+    /// Создание объекта из массива строк
+    /// </summary>
+    /// <param name="strs"></param>
+    /// <returns></returns>
+    public static EntityTrolleyB? CreateEntityTrolleyB(string[] strs)
+    {
+        if (strs.Length != 4 || strs[0] != nameof(EntityTrolleyB))
+        {
+            return null;
+        }
+
+        return new EntityTrolleyB(Convert.ToInt32(strs[1]), Convert.ToDouble(strs[2]), Color.FromName(strs[3]));
+    }
 }

ProjectTrolleybus/ProjectTrolleybus/Entities/EntityTrolleybus.cs

@@ -39,4 +39,28 @@ public class EntityTrolleybus : EntityTrolleyB
         BatteryCompartment = batteryCompartment;
         Horns = horns;
     }
+
+    /// <summary>
+    /// Получение строк со значениями свойств объекта класса-сущности
+    /// </summary>
+    /// <returns></returns>
+    public override string[] GetStringRepresentation()
+    {
+        return new[] { nameof(EntityTrolleybus), Speed.ToString(), Weight.ToString(), BodyColor.Name, AdditionalColor.Name, BatteryCompartment.ToString(), Horns.ToString() };
+    }
+
+    /// <summary>
+    /// Создание объекта из массива строк
+    /// </summary>
+    /// <param name="strs"></param>
+    /// <returns></returns>
+    public static EntityTrolleybus? CreateEntityTrolleybus(string[] strs)
+    {
+        if (strs.Length != 7 || strs[0] != nameof(EntityTrolleybus))
+        {
+            return null;
+        }
+
+        return new EntityTrolleybus(Convert.ToInt32(strs[1]), Convert.ToDouble(strs[2]), Color.FromName(strs[3]), Color.FromName(strs[4]), Convert.ToBoolean(strs[5]), Convert.ToBoolean(strs[6]));
+    }
 }

ProjectTrolleybus/ProjectTrolleybus/FormTrolleyBCollection.Designer.cs

@@ -46,10 +46,17 @@
             labelCollectionName = new Label();
             comboBoxSelectorCompany = new ComboBox();
             pictureBox = new PictureBox();
+            menuStrip = new MenuStrip();
+            файлToolStripMenuItem = new ToolStripMenuItem();
+            SaveToolStripMenuItem = new ToolStripMenuItem();
+            LoadToolStripMenuItem = new ToolStripMenuItem();
+            saveFileDialog = new SaveFileDialog();
+            openFileDialog = new OpenFileDialog();
             groupBoxTools.SuspendLayout();
             panelCompanyTools.SuspendLayout();
             panelStorage.SuspendLayout();
             ((System.ComponentModel.ISupportInitialize)pictureBox).BeginInit();
+            menuStrip.SuspendLayout();
             SuspendLayout();
             // 
             // groupBoxTools
@@ -59,9 +66,9 @@
             groupBoxTools.Controls.Add(panelStorage);
             groupBoxTools.Controls.Add(comboBoxSelectorCompany);
             groupBoxTools.Dock = DockStyle.Right;
-            groupBoxTools.Location = new Point(861, 0);
+            groupBoxTools.Location = new Point(875, 24);
             groupBoxTools.Name = "groupBoxTools";
-            groupBoxTools.Size = new Size(201, 645);
+            groupBoxTools.Size = new Size(201, 636);
             groupBoxTools.TabIndex = 0;
             groupBoxTools.TabStop = false;
             groupBoxTools.Text = "Инструменты";
@@ -75,7 +82,7 @@
             panelCompanyTools.Controls.Add(buttonGoToCheck);
             panelCompanyTools.Dock = DockStyle.Bottom;
             panelCompanyTools.Enabled = false;
-            panelCompanyTools.Location = new Point(3, 364);
+            panelCompanyTools.Location = new Point(3, 355);
             panelCompanyTools.Name = "panelCompanyTools";
             panelCompanyTools.Size = new Size(195, 278);
             panelCompanyTools.TabIndex = 8;
@@ -136,7 +143,7 @@
             // 
             // buttonCreateCompany
             // 
-            buttonCreateCompany.Location = new Point(12, 335);
+            buttonCreateCompany.Location = new Point(12, 324);
             buttonCreateCompany.Name = "buttonCreateCompany";
             buttonCreateCompany.Size = new Size(177, 23);
             buttonCreateCompany.TabIndex = 7;
@@ -241,19 +248,62 @@
             // pictureBox
             // 
             pictureBox.Dock = DockStyle.Fill;
-            pictureBox.Location = new Point(0, 0);
+            pictureBox.Location = new Point(0, 24);
             pictureBox.Name = "pictureBox";
-            pictureBox.Size = new Size(861, 645);
+            pictureBox.Size = new Size(875, 636);
             pictureBox.TabIndex = 1;
             pictureBox.TabStop = false;
             // 
+            // menuStrip
+            // 
+            menuStrip.Items.AddRange(new ToolStripItem[] { файлToolStripMenuItem });
+            menuStrip.Location = new Point(0, 0);
+            menuStrip.Name = "menuStrip";
+            menuStrip.Size = new Size(1076, 24);
+            menuStrip.TabIndex = 2;
+            menuStrip.Text = "menuStrip1";
+            // 
+            // файлToolStripMenuItem
+            // 
+            файлToolStripMenuItem.DropDownItems.AddRange(new ToolStripItem[] { SaveToolStripMenuItem, LoadToolStripMenuItem });
+            файлToolStripMenuItem.Name = "файлToolStripMenuItem";
+            файлToolStripMenuItem.Size = new Size(48, 20);
+            файлToolStripMenuItem.Text = "Файл";
+            // 
+            // SaveToolStripMenuItem
+            // 
+            SaveToolStripMenuItem.Name = "SaveToolStripMenuItem";
+            SaveToolStripMenuItem.ShortcutKeys = Keys.Control | Keys.S;
+            SaveToolStripMenuItem.Size = new Size(181, 22);
+            SaveToolStripMenuItem.Text = "Сохранение";
+            SaveToolStripMenuItem.Click += SaveToolStripMenuItem_Click;
+            // 
+            // LoadToolStripMenuItem
+            // 
+            LoadToolStripMenuItem.Name = "LoadToolStripMenuItem";
+            LoadToolStripMenuItem.ShortcutKeys = Keys.Control | Keys.L;
+            LoadToolStripMenuItem.Size = new Size(181, 22);
+            LoadToolStripMenuItem.Text = "Загрузка";
+            LoadToolStripMenuItem.Click += LoadToolStripMenuItem_Click;
+            // 
+            // saveFileDialog
+            // 
+            saveFileDialog.Filter = "txt file | *.txt";
+            // 
+            // openFileDialog
+            // 
+            openFileDialog.FileName = "openFileDialog1";
+            openFileDialog.Filter = "txt file | *.txt";
+            // 
             // FormTrolleyBCollection
             // 
             AutoScaleDimensions = new SizeF(7F, 15F);
             AutoScaleMode = AutoScaleMode.Font;
-            ClientSize = new Size(1062, 645);
+            ClientSize = new Size(1076, 660);
             Controls.Add(pictureBox);
             Controls.Add(groupBoxTools);
+            Controls.Add(menuStrip);
+            MainMenuStrip = menuStrip;
             Name = "FormTrolleyBCollection";
             Text = "Коллекция троллейбусов";
             groupBoxTools.ResumeLayout(false);
@@ -262,7 +312,10 @@
             panelStorage.ResumeLayout(false);
             panelStorage.PerformLayout();
             ((System.ComponentModel.ISupportInitialize)pictureBox).EndInit();
+            menuStrip.ResumeLayout(false);
+            menuStrip.PerformLayout();
             ResumeLayout(false);
+            PerformLayout();
         }
 
         #endregion
@@ -285,5 +338,11 @@
         private ListBox listBoxCollection;
         private Button buttonCreateCompany;
         private Panel panelCompanyTools;
+        private MenuStrip menuStrip;
+        private ToolStripMenuItem файлToolStripMenuItem;
+        private ToolStripMenuItem SaveToolStripMenuItem;
+        private ToolStripMenuItem LoadToolStripMenuItem;
+        private SaveFileDialog saveFileDialog;
+        private OpenFileDialog openFileDialog;
     }
 }

ProjectTrolleybus/ProjectTrolleybus/FormTrolleyBCollection.cs

@@ -1,5 +1,6 @@
 using ProjectTrolleybus.CollectionGenericObjects;
 using ProjectTrolleybus.Drawnings;
+using System.Windows.Forms;
 
 namespace ProjectTrolleybus;
 
@@ -245,4 +246,46 @@ public partial class FormTrolleyBCollection : Form
             }
         }
     }
+
+    /// <summary>
+    /// Обработка нажатия "Сохранение"
+    /// </summary>
+    /// <param name="sender"></param>
+    /// <param name="e"></param>
+    private void SaveToolStripMenuItem_Click(object sender, EventArgs e)
+    {
+        if (saveFileDialog.ShowDialog() == DialogResult.OK)
+        {
+            if (_storageCollection.SaveData(saveFileDialog.FileName))
+            {
+                MessageBox.Show("Сохранение прошло успешно", "Результат", MessageBoxButtons.OK, MessageBoxIcon.Information);
+            }
+            else
+            {
+                MessageBox.Show("Не сохранилось", "Результат", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+    }
+
+    /// <summary>
+    /// Обработка нажатия "Загрузка"
+    /// </summary>
+    /// <param name="sender"></param>
+    /// <param name="e"></param>
+    private void LoadToolStripMenuItem_Click(object sender, EventArgs e)
+    {
+        if (openFileDialog.ShowDialog() == DialogResult.OK)
+        {
+            if (_storageCollection.LoadData(openFileDialog.FileName))
+            {
+                MessageBox.Show("Загрузка прошла успешно", "Результат", MessageBoxButtons.OK, MessageBoxIcon.Information);
+
+                RerfreshListBoxItems();
+            }
+            else
+            {
+                MessageBox.Show("Не загрузилось", "Результат", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+    }
 }

ProjectTrolleybus/ProjectTrolleybus/FormTrolleyBCollection.resx

@@ -117,4 +117,16 @@
   <resheader name="writer">
     <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
   </resheader>
+  <metadata name="menuStrip.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
+    <value>17, 17</value>
+  </metadata>
+  <metadata name="saveFileDialog.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
+    <value>126, 17</value>
+  </metadata>
+  <metadata name="openFileDialog.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
+    <value>261, 17</value>
+  </metadata>
+  <metadata name="$this.TrayHeight" type="System.Int32, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>52</value>
+  </metadata>
 </root>