---

8

using System;
using System.Drawing;
using System.IO;
using System.Windows.Forms;

namespace zadanie8
{
    public partial class Form1 : Form
    {
        RichTextBox editor = new RichTextBox();
        string fileName = "";

        public Form1()
        {
            InitializeComponent();

            Text = "Текстовый редактор";
            Size = new Size(800, 550);

            MenuStrip menu = new MenuStrip();

            ToolStripMenuItem file = new ToolStripMenuItem("Файл");
            ToolStripMenuItem edit = new ToolStripMenuItem("Правка");
            ToolStripMenuItem service = new ToolStripMenuItem("Сервис");
            ToolStripMenuItem font = new ToolStripMenuItem("Шрифт");
            ToolStripMenuItem about = new ToolStripMenuItem("О программе");

            menu.Items.Add(file);
            menu.Items.Add(edit);
            menu.Items.Add(service);
            menu.Items.Add(font);
            menu.Items.Add(about);

            editor.Dock = DockStyle.Fill;
            editor.Font = new Font("Arial", 12);

            Controls.Add(editor);
            Controls.Add(menu);
            MainMenuStrip = menu;

            file.DropDownItems.Add("Создать", null, (s, e) =>
            {
                editor.Clear();
                fileName = "";
            });

            file.DropDownItems.Add("Открыть", null, (s, e) =>
            {
                OpenFileDialog d = new OpenFileDialog();
                d.Filter = "RTF (*.rtf)|*.rtf|TXT (*.txt)|*.txt";

                if (d.ShowDialog() == DialogResult.OK)
                {
                    fileName = d.FileName;

                    if (Path.GetExtension(fileName).ToLower() == ".rtf")
                        editor.LoadFile(fileName, RichTextBoxStreamType.RichText);
                    else
                        editor.LoadFile(fileName, RichTextBoxStreamType.PlainText);
                }
            });

            file.DropDownItems.Add("Сохранить", null, (s, e) =>
            {
                SaveDocument();
            });

            file.DropDownItems.Add("Сохранить как", null, (s, e) =>
            {
                fileName = "";
                SaveDocument();
            });

            file.DropDownItems.Add("Выход", null, (s, e) =>
            {
                Close();
            });

            edit.DropDownItems.Add("Отменить", null, (s, e) => editor.Undo());
            edit.DropDownItems.Add("Повторить", null, (s, e) => editor.Redo());
            edit.DropDownItems.Add("Вырезать", null, (s, e) => editor.Cut());
            edit.DropDownItems.Add("Копировать", null, (s, e) => editor.Copy());
            edit.DropDownItems.Add("Вставить", null, (s, e) => editor.Paste());
            edit.DropDownItems.Add("Выделить всё", null, (s, e) => editor.SelectAll());

            service.DropDownItems.Add("По левому краю", null, (s, e) =>
            {
                editor.SelectionAlignment = HorizontalAlignment.Left;
            });

            service.DropDownItems.Add("По центру", null, (s, e) =>
            {
                editor.SelectionAlignment = HorizontalAlignment.Center;
            });

            service.DropDownItems.Add("По правому краю", null, (s, e) =>
            {
                editor.SelectionAlignment = HorizontalAlignment.Right;
            });

            service.DropDownItems.Add("Цвет фона", null, (s, e) =>
            {
                ColorDialog d = new ColorDialog();

                if (d.ShowDialog() == DialogResult.OK)
                {
                    BackColor = d.Color;
                    editor.BackColor = d.Color;
                }
            });

            font.DropDownItems.Add("Изменить шрифт", null, (s, e) =>
            {
                FontDialog d = new FontDialog();
                d.Font = editor.SelectionFont ?? editor.Font;

                if (d.ShowDialog() == DialogResult.OK)
                    editor.SelectionFont = d.Font;
            });

            font.DropDownItems.Add("Цвет текста", null, (s, e) =>
            {
                ColorDialog d = new ColorDialog();

                if (d.ShowDialog() == DialogResult.OK)
                    editor.SelectionColor = d.Color;
            });

            about.Click += (s, e) =>
            {
                MessageBox.Show(
                    "Простой текстовый редактор\nЗадание 8\nC# Windows Forms",
                    "О программе",
                    MessageBoxButtons.OK,
                    MessageBoxIcon.Information);
            };
        }

        void SaveDocument()
        {
            if (fileName == "")
            {
                SaveFileDialog d = new SaveFileDialog();
                d.Filter = "RTF (*.rtf)|*.rtf|TXT (*.txt)|*.txt";

                if (d.ShowDialog() == DialogResult.OK)
                    fileName = d.FileName;
                else
                    return;
            }

            if (Path.GetExtension(fileName).ToLower() == ".rtf")
                editor.SaveFile(fileName, RichTextBoxStreamType.RichText);
            else
                editor.SaveFile(fileName, RichTextBoxStreamType.PlainText);
        }
    }
}


9

using System;
using System.Drawing;
using System.IO;
using System.Windows.Forms;

namespace zadanie9
{
    public partial class Form1 : Form
    {
        static Form1[] windows = new Form1[5];
        static Random random = new Random();

        RichTextBox editor = new RichTextBox();
        Button button = new Button();
        ToolTip tip = new ToolTip();

        string fileName = "";
        int number;
        int next;

        public Form1()
        {
            CreateWindow(0);

            windows[0] = this;

            for (int i = 1; i < 5; i++)
                windows[i] = new Form1(i);

            ChooseNext();
        }

        public Form1(int n)
        {
            CreateWindow(n);
        }

        void CreateWindow(int n)
        {
            InitializeComponent();

            number = n;

            Text = "Окно " + (number + 1);
            Size = new Size(800, 550);

            MenuStrip menu = new MenuStrip();

            ToolStripMenuItem file = new ToolStripMenuItem("Файл");
            ToolStripMenuItem edit = new ToolStripMenuItem("Правка");
            ToolStripMenuItem service = new ToolStripMenuItem("Сервис");
            ToolStripMenuItem font = new ToolStripMenuItem("Шрифт");
            ToolStripMenuItem about = new ToolStripMenuItem("О программе");

            menu.Items.Add(file);
            menu.Items.Add(edit);
            menu.Items.Add(service);
            menu.Items.Add(font);
            menu.Items.Add(about);

            editor.Dock = DockStyle.Fill;
            editor.Font = new Font("Arial", 12);

            Panel panel = new Panel();
            panel.Dock = DockStyle.Bottom;
            panel.Height = 50;

            button.Text = "Перейти в другое окно";
            button.Size = new Size(200, 30);
            button.Location = new Point(10, 10);

            panel.Controls.Add(button);

            Controls.Add(editor);
            Controls.Add(panel);
            Controls.Add(menu);

            MainMenuStrip = menu;

            file.DropDownItems.Add("Создать", null, (s, e) =>
            {
                editor.Clear();
                fileName = "";
            });

            file.DropDownItems.Add("Открыть", null, (s, e) =>
            {
                OpenFileDialog d = new OpenFileDialog();
                d.Filter = "RTF (*.rtf)|*.rtf|TXT (*.txt)|*.txt";

                if (d.ShowDialog() == DialogResult.OK)
                {
                    fileName = d.FileName;

                    if (Path.GetExtension(fileName).ToLower() == ".rtf")
                        editor.LoadFile(fileName, RichTextBoxStreamType.RichText);
                    else
                        editor.LoadFile(fileName, RichTextBoxStreamType.PlainText);
                }
            });

            file.DropDownItems.Add("Сохранить", null, (s, e) =>
            {
                SaveDocument();
            });

            file.DropDownItems.Add("Сохранить как", null, (s, e) =>
            {
                fileName = "";
                SaveDocument();
            });

            file.DropDownItems.Add("Выход", null, (s, e) =>
            {
                Close();
            });

            edit.DropDownItems.Add("Отменить", null, (s, e) => editor.Undo());
            edit.DropDownItems.Add("Повторить", null, (s, e) => editor.Redo());
            edit.DropDownItems.Add("Вырезать", null, (s, e) => editor.Cut());
            edit.DropDownItems.Add("Копировать", null, (s, e) => editor.Copy());
            edit.DropDownItems.Add("Вставить", null, (s, e) => editor.Paste());
            edit.DropDownItems.Add("Выделить всё", null, (s, e) => editor.SelectAll());

            service.DropDownItems.Add("По левому краю", null, (s, e) =>
            {
                editor.SelectionAlignment = HorizontalAlignment.Left;
            });

            service.DropDownItems.Add("По центру", null, (s, e) =>
            {
                editor.SelectionAlignment = HorizontalAlignment.Center;
            });

            service.DropDownItems.Add("По правому краю", null, (s, e) =>
            {
                editor.SelectionAlignment = HorizontalAlignment.Right;
            });

            service.DropDownItems.Add("Цвет фона", null, (s, e) =>
            {
                ColorDialog d = new ColorDialog();

                if (d.ShowDialog() == DialogResult.OK)
                {
                    BackColor = d.Color;
                    editor.BackColor = d.Color;
                }
            });

            font.DropDownItems.Add("Изменить шрифт", null, (s, e) =>
            {
                FontDialog d = new FontDialog();
                d.Font = editor.SelectionFont ?? editor.Font;

                if (d.ShowDialog() == DialogResult.OK)
                    editor.SelectionFont = d.Font;
            });

            font.DropDownItems.Add("Цвет текста", null, (s, e) =>
            {
                ColorDialog d = new ColorDialog();

                if (d.ShowDialog() == DialogResult.OK)
                    editor.SelectionColor = d.Color;
            });

            about.Click += (s, e) =>
            {
                MessageBox.Show(
                    "Текстовый редактор\nОкно " + (number + 1) +
                    "\nЗадания 8 и 9",
                    "О программе",
                    MessageBoxButtons.OK,
                    MessageBoxIcon.Information);
            };

            button.Click += (s, e) =>
            {
                Hide();
                windows[next].ChooseNext();
                windows[next].Show();
                windows[next].Activate();
            };

            FormClosed += (s, e) =>
            {
                Application.Exit();
            };
        }

        void ChooseNext()
        {
            do
            {
                next = random.Next(0, 5);
            }
            while (next == number);

            tip.SetToolTip(button, "Перейти к окну " + (next + 1));
        }

        void SaveDocument()
        {
            if (fileName == "")
            {
                SaveFileDialog d = new SaveFileDialog();
                d.Filter = "RTF (*.rtf)|*.rtf|TXT (*.txt)|*.txt";

                if (d.ShowDialog() == DialogResult.OK)
                    fileName = d.FileName;
                else
                    return;
            }

            if (Path.GetExtension(fileName).ToLower() == ".rtf")
                editor.SaveFile(fileName, RichTextBoxStreamType.RichText);
            else
                editor.SaveFile(fileName, RichTextBoxStreamType.PlainText);
        }
    }
}