■ Form 클래스에서 마우스 위치에 따라 폼 불투명도를 변경하는 방법을 보여준다.
▶ MainForm.cs
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using System; using System.Drawing; using System.Drawing.Drawing2D; using System.Windows.Forms; using System.Threading; namespace TestProject { /// <summary> /// 메인 폼 /// </summary> public partial class MainForm : Form { //////////////////////////////////////////////////////////////////////////////////////////////////// Delegate ////////////////////////////////////////////////////////////////////////////////////////// Private #region Delegate /// <summary> /// 불투명도 변경하기 대리자 /// </summary> /// <param name="value">값</param> private delegate void ChangeOpacityDelegate(double value); #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 마우스 이탈시 불투명도 /// </summary> private double mouseLeaveOpacity = 0.7; /// <summary> /// FADE 비율 /// </summary> private double fadeRate = 0.001; /// <summary> /// FADE IN 스레드 /// </summary> private Thread fadeInThread; /// <summary> /// FADE OUT 스레드 /// </summary> private Thread fadeOutThread; /// <summary> /// 마지막 마우스 위치 /// </summary> private Point lastPoint; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainForm() /// <summary> /// 생성자 /// </summary> public MainForm() { InitializeComponent(); Load += Form_Load; Paint += Form_Paint; MouseEnter += Form_MouseEnter; MouseDown += Form_MouseDown; MouseMove += Form_MouseMove; MouseLeave += Form_MouseLeave; this.exitButton.Click += exitButton_Click; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private //////////////////////////////////////////////////////////////////////////////// Event #region 폼 로드시 처리하기 - Form_Load(sender, e) /// <summary> /// 폼 로드시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void Form_Load(object sender, EventArgs e) { DoubleBuffered = true; TransparencyKey = Color.Lime; Opacity = mouseLeaveOpacity; this.fadeInThread = new Thread(new ThreadStart(ProcessFadeIn )); this.fadeOutThread = new Thread(new ThreadStart(ProcessFadeOut)); } #endregion #region 폼 마우스 진입시 처리하기 - Form_MouseEnter(sender, e) /// <summary> /// 폼 마우스 진입시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void Form_MouseEnter(object sender, EventArgs e) { if(this.fadeInThread.ThreadState == ThreadState.Running) { this.fadeInThread.Abort(); } if(this.fadeOutThread.ThreadState == ThreadState.Running) { fadeOutThread.Abort(); } this.fadeInThread = new Thread(new ThreadStart(ProcessFadeIn)); this.fadeInThread.Start(); } #endregion #region 폼 마우스 DOWN 처리하기 - Form_MouseDown(sender, e) /// <summary> /// 폼 마우스 DOWN 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void Form_MouseDown(object sender, MouseEventArgs e) { this.lastPoint = new Point(e.X, e.Y); } #endregion #region 폼 마우스 이동시 처리하기 - Form_MouseMove(sender, e) /// <summary> /// 폼 마우스 이동시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void Form_MouseMove(object sender, MouseEventArgs e) { if(e.Button == MouseButtons.Left || e.Button == MouseButtons.Right) { Left += e.X - this.lastPoint.X; Top += e.Y - this.lastPoint.Y; } } #endregion #region 폼 마우스 이탈시 처리하기 - Form_MouseLeave(sender, e) /// <summary> /// 폼 마우스 이탈시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void Form_MouseLeave(object sender, EventArgs e) { if(Bounds.Contains(Cursor.Position)) { return; } if(this.fadeInThread.ThreadState == ThreadState.Running) { this.fadeInThread.Abort(); } if(this.fadeOutThread.ThreadState == ThreadState.Running) { this.fadeOutThread.Abort(); } this.fadeOutThread = new Thread(new ThreadStart(ProcessFadeOut)); this.fadeOutThread.Start(); } #endregion #region 폼 페인트시 처리하기 - Form_Paint(sender, e) /// <summary> /// 폼 페인트시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void Form_Paint(object sender, PaintEventArgs e) { Graphics graphics = e.Graphics; graphics.SmoothingMode = SmoothingMode.AntiAlias; Rectangle areaRectangle = this.ClientRectangle; areaRectangle.Width -= 1; areaRectangle.Height -= 1; using(Pen outlinePen = new Pen(Color.Gold, 1)) { graphics.FillRectangle(Brushes.LightYellow, ClientRectangle); graphics.DrawRectangle(outlinePen, areaRectangle); } } #endregion #region 종료 버튼 클릭시 처리하기 - exitButton_Click(sender, e) /// <summary> /// 종료 버튼 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void exitButton_Click(object sender, EventArgs e) { Close(); } #endregion //////////////////////////////////////////////////////////////////////////////// Function #region 불투명도 변경하기 - ChangeOpacity(value) /// <summary> /// 불투명도 변경하기 /// </summary> /// <param name="value">값</param> private void ChangeOpacity(double value) { if(InvokeRequired) { ChangeOpacityDelegate changeOpacityDelegate = new ChangeOpacityDelegate(ChangeOpacity); this.Invoke(changeOpacityDelegate, value); } else { Opacity = value; } } #endregion #region FADE IN 처리하기 - ProcessFadeIn() /// <summary> /// FADE IN 처리하기 /// </summary> private void ProcessFadeIn() { for(double i = Opacity; i <= 1; i += this.fadeRate) { ChangeOpacity(i); } if(Opacity != 1.0) { ChangeOpacity(1.0); } } #endregion #region FADE OUT 처리하기 - ProcessFadeOut() /// <summary> /// FADE OUT 처리하기 /// </summary> private void ProcessFadeOut() { for(double i = Opacity; i >= this.mouseLeaveOpacity; i -= this.fadeRate) { ChangeOpacity(i); } if(Opacity != this.mouseLeaveOpacity) { ChangeOpacity(this.mouseLeaveOpacity); } } #endregion } } |
