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

namespace lab_2_2._0_var1_5
{
    public partial class Form1 : Form
    {
        public enum Direction { Right, Down, Left, Up, Stop, Go};
        public Direction direction = Direction.Right;

        public Form1()
        {
            InitializeComponent();
        }

        private void label1_Click(object sender, EventArgs e)
        {


        }

        private void timer1_Tick(object sender, EventArgs e)
        {

            if (label1.Left > ClientRectangle.Width - label1.Width)
            {
                direction = Direction.Down;
                label1.Left = ClientRectangle.Width - label1.Width;

            }

            if (label1.Top > ClientRectangle.Height - label1.Height)
            {
                direction = Direction.Left;

                label1.Top = ClientRectangle.Height - label1.Height;
            }

            if (label1.Left < 0)
            {
                direction = Direction.Up;
                label1.Left = 0;

            }

            if (label1.Top < 0)
            {
                    direction = Direction.Right;
                    label1.Top = 0;
            }


            switch (direction)
            {
                case Direction.Right:
                    label1.Left += 10;
                    if (label1.Left < ClientRectangle.Width - label1.Width)
                    {
                        label1.ForeColor = Color.FromArgb(label1.Left * 255 / (ClientRectangle.Width - label1.Width), 0, 0);
                    }
                    break;

                case Direction.Down:
                    label1.Top += 10;//243 249 40
                    if (label1.Top < ClientRectangle.Height - label1.Height)
                    {
                        label1.ForeColor = Color.FromArgb(255, label1.Top * 255 / (ClientRectangle.Height - label1.Height), 0);
                    }
                    break;

                case Direction.Left:
                    label1.Left -= 10;
                    if (label1.Left > 0)
                    {
                        label1.ForeColor = Color.FromArgb(255, 255, ((ClientRectangle.Width - label1.Width) - label1.Left) * 255 / (ClientRectangle.Width));
                    }
                    break;

                case Direction.Up:
                    label1.Top -= 10;
                    if (label1.Top > 0)
                    {
                        label1.ForeColor = Color.FromArgb(label1.Top * 255 / (ClientRectangle.Height - label1.Height), label1.Top * 255 / (ClientRectangle.Height - label1.Height), label1.Top * 255 / (ClientRectangle.Height - label1.Height));
                    }
                    break;

                case Direction.Stop:
                    break;

                case Direction.Go:
                    if (label1.Top == 0)
                        direction = Direction.Right;
                    if (label1.Top == ClientRectangle.Height - label1.Height)
                        direction = Direction.Left;
                    if (label1.Left == 0)
                        direction = Direction.Up;
                    if (label1.Left == ClientRectangle.Width - label1.Width)
                        direction = Direction.Down;
                    break;
            }
        }

        private void Form1_Shown(object sender, EventArgs e)
        {

        }

        private void Form1_Load_1(object sender, EventArgs e)
        {
            Form2 newForm = new Form2();
            newForm.Show();
            newForm.form1 = this;
        }

        private void button1_Click(object sender, EventArgs e)
        {
            MessageBox.Show(label1.Top.ToString() + "\n" + "label координата: " + label1.Left.ToString() + "\nклиент ширина: " + ClientRectangle.Width.ToString() + "\nlabel ширина: " + label1.Width.ToString() + "\nразница: " + (ClientRectangle.Width - label1.Width).ToString() );
        }
    }
}



________________________________________________________________________________________________________





using System;
using System.Windows.Forms;

namespace lab_2_2._0_var1_5
{
    public partial class Form2 : Form
    {
        public Form1 form1;

        int counter = 0; // счетсик строк
        int dlina;
        public Form2()
        {
            InitializeComponent();
            dlina = label1.Text.Length - 1;
        }

        private void Form2_Load(object sender, EventArgs e)
        {

        }

        private void button1_Click(object sender, EventArgs e)
        {
            if (button1.Text == "Выключить")
            {
                form1.direction = Form1.Direction.Stop;

                button1.Text = "Включить";
            }
            else
            {
                form1.direction = Form1.Direction.Go;

                button1.Text = "Выключить";
            }

        }

        private void label1_Click(object sender, EventArgs e)// количество строк
        {

        }

        private void richTextBox1_TextChanged(object sender, EventArgs e)//
        {

        }

        private void button2_Click(object sender, EventArgs e)// добавить строку
        {
            if (textBox1.Text == "")
                MessageBox.Show("Введите строку");
            else
            {
                richTextBox1.Text += textBox1.Text + "\n";
                textBox1.Text = "";
                label1.Text = label1.Text.Remove(label1.Text.Length - (label1.Text.Length - dlina));
                label1.Text += (++counter);
            }
        }

        private void button3_Click(object sender, EventArgs e)// удалить строку
        {
            if (richTextBox1.Text != "")
            {
                richTextBox1.Text = richTextBox1.Text.Remove(richTextBox1.GetFirstCharIndexFromLine(0), richTextBox1.Lines[0].Length + 1); // из интерента удаление строки
                label1.Text = label1.Text.Remove(label1.Text.Length - (label1.Text.Length - dlina));
                label1.Text += (--counter);
            }
        }

        private void textBox1_TextChanged(object sender, EventArgs e) // поле ввода
        {

        }
    }
}