LegacyProject/ScreenSaverEf/MainForm.cs

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

namespace ScreenSaverEf
{
    public partial class MainForm : Form
    {
        readonly Image _imgSky = Properties.Resources.sky;
        readonly Image _imgDn = Properties.Resources.dn;
        readonly Image _imgC = Properties.Resources.st_kei10a02_;

        PointF _posSky;
        PointF _posDn;

        PointF _posSkyReset;
        PointF _posDnReset;

        PointF _posC = PointF.Empty;
        PointF _posCr;
        
        Rectangle _blkDn;

        #region POSC_DATA

        readonly float[] _cx = new float[] {
            -6,
            -5.5F,
            -5,
            -4,
            -3,
            -1.5F,
            0,
            1.5F,
            3,
            4,
            5,
            5.5F,
            6,5.5F,5,4,3,1.5F,0,-1.5F,-3,-4,-5,-5.5F,
        };

        int _cxi = 6;

        readonly float[] _cy = new float[] {
            -6,
            -5,
            -3,
            0,
            3,
            5,
            6,5,3,0,-3,-5
        };

        int _cyi = 3;
        #endregion

        int? _scrNo;

        public MainForm()
        {
            InitializeComponent();
        }

        public MainForm(int scrNo)
            : this()
        {
            _scrNo = scrNo;
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            var rect = _scrNo.HasValue ? Screen.AllScreens[_scrNo.Value].Bounds : Screen.PrimaryScreen.Bounds;

            var p = Location; p.Offset(rect.Location);
            Location = p;
            Size = rect.Size;
            FormBorderStyle = FormBorderStyle.None;
            TopMost = true;



            ResetPos();
            UpdateTimer.Start();
        }

        private void ResetPos()
        {
            _posSkyReset = _posSky = new PointF(-_imgSky.Width + Width, (Height - 600) / 2f);
            _posDnReset = _posDn = new PointF(-_imgDn.Width + Width, (Height - 600) / 2f);
            _posCr = new PointF(Width - _imgC.Width, (Height - 600) / 2f);

            _blkDn = new Rectangle(new Point(0, (int)_posSky.Y + _imgSky.Height), new Size(Width, (Height - 600) / 2));
        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            _posSky.X += .5f;//.5F;
            _posDn.X += 1.5f;//1.5F;

            _cxi++;

            if (_cxi % 2 == 0)
                _cyi++;

            if (_cxi > _cx.Length - 1) _cxi = 0;
            if (_cyi > _cy.Length - 1) _cyi = 0;

            _posC.X = _posCr.X + _cx[_cxi];
            _posC.Y = _posCr.Y + _cy[_cyi] - 14;

            Invalidate();
        }

        private void Form1_Paint(object sender, PaintEventArgs e)
        {
            var dc = e.Graphics;
            if (UpdateTimer.Enabled)
            {
                if (_posSky.X > 0 && _posSky.X <= Width)
                    dc.DrawImage(_imgSky, new PointF(-_imgSky.Width + _posSky.X, _posSky.Y));
                if (_posSky.X > Width)
                    _posSky.X = _posSkyReset.X;

                dc.DrawImage(_imgSky, _posSky);

                if (_posDn.X > 0 && _posDn.X <= Width)
                    dc.DrawImage(_imgDn, new PointF(-_imgDn.Width + _posDn.X, _posDn.Y));
                if (_posDn.X > Width)
                    _posDn.X = _posDnReset.X;

                dc.DrawImage(_imgDn, _posDn);


                dc.DrawImage(_imgC, _posC);

                dc.FillRectangle(Brushes.Black, _blkDn);
            }
            else
            {
                dc.DrawString("µã»÷¿ªÊ¼", new Font("΢ÈíÑźÚ", 20), Brushes.White, ClientSize.Width / 2f, ClientSize.Height / 2f);
            }
        }

        private void Form1_MouseClick(object sender, MouseEventArgs e)
        {
            if (UpdateTimer.Enabled)
                Application.Exit();
            else
                UpdateTimer.Start();
        }

        private void Form1_Resize(object sender, EventArgs e)
        {
            ResetPos();
        }

        private void Form1_KeyPress(object sender, KeyPressEventArgs e)
        {
            Application.Exit();
        }

        private void Form1_KeyDown(object sender, KeyEventArgs e)
        {
            Application.Exit();
        }

        private void Form1_KeyUp(object sender, KeyEventArgs e)
        {
            Application.Exit();
        }

        private void Form1_PreviewKeyDown(object sender, PreviewKeyDownEventArgs e)
        {
            Application.Exit();
        }
    }
}