■ 시계 컨트롤을 만드는 방법을 보여준다.
▶ ClockControl.cs
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using System; using System.Drawing; using System.Drawing.Drawing2D; using System.Windows.Forms; namespace TestProject { /// <summary> /// 시계 컨트롤 /// </summary> public partial class ClockControl: UserControl { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 일시 /// </summary> private DateTime dateTime; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 일시 - DateTime /// <summary> /// 일시 /// </summary> public DateTime DateTime { get { return this.dateTime; } set { Graphics graphics = CreateGraphics(); InitializeCoordinate(graphics); Pen pen = new Pen(BackColor); if(this.dateTime.Hour != value.Hour) { DrawHourHand(graphics, pen); } if(this.dateTime.Minute != value.Minute) { DrawHourHand(graphics, pen); DrawMinuteHand(graphics, pen); } if(this.dateTime.Second != value.Second) { DrawMinuteHand(graphics, pen); DrawSecondHand(graphics, pen); } if(this.dateTime.Millisecond != value.Millisecond) { DrawSecondHand(graphics, pen); } this.dateTime = value; pen = new Pen(ForeColor); DrawHourHand(graphics, pen); DrawMinuteHand(graphics, pen); DrawSecondHand(graphics, pen); graphics.Dispose(); } } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - ClockControl() /// <summary> /// 생성자 /// </summary> public ClockControl() { InitializeComponent(); ResizeRedraw = true; Enabled = false; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Protected #region 페인트시 처리하기 - OnPaint(e) /// <summary> /// 페인트시 처리하기 /// </summary> /// <param name="e">이벤트 인자</param> protected override void OnPaint(PaintEventArgs e) { Graphics graphics = e.Graphics; Pen pen = new Pen(ForeColor); Brush brush = new SolidBrush(ForeColor); InitializeCoordinate(graphics); DrawDot(graphics, brush); DrawHourHand(graphics, pen); DrawMinuteHand(graphics, pen); DrawSecondHand(graphics, pen); } #endregion #region 시침 그리기 - DrawHourHand(graphics, pen) /// <summary> /// 시침 그리기 /// </summary> /// <param name="graphics">그래픽스</param> /// <param name="pen">펜</param> protected virtual void DrawHourHand(Graphics graphics, Pen pen) { GraphicsState graphicsState = graphics.Save(); graphics.RotateTransform(360f * DateTime.Hour / 12 + 30f * DateTime.Minute / 60); graphics.DrawPolygon ( pen, new Point[] { new Point( 0, 150), new Point( 100, 0), new Point( 0, -600), new Point(-100, 0) } ); graphics.Restore(graphicsState); } #endregion #region 분침 그리기 - DrawMinuteHand(graphics, pen) /// <summary> /// 분침 그리기 /// </summary> /// <param name="graphics">그래픽스</param> /// <param name="pen">펜</param> protected virtual void DrawMinuteHand(Graphics graphics, Pen pen) { GraphicsState graphicsState = graphics.Save(); graphics.RotateTransform(360f * DateTime.Minute / 60 + 6f * DateTime.Second / 60); graphics.DrawPolygon ( pen, new Point[] { new Point( 0, 200), new Point( 50, 0), new Point( 0, -800), new Point(-50, 0) } ); graphics.Restore(graphicsState); } #endregion #region 초침 그리기 - DrawSecondHand(graphics, pen) /// <summary> /// 초침 그리기 /// </summary> /// <param name="graphics">그래픽스</param> /// <param name="pen">펜</param> protected virtual void DrawSecondHand(Graphics graphics, Pen pen) { GraphicsState graphicsState = graphics.Save(); graphics.RotateTransform(360f * DateTime.Second / 60 + 6f * DateTime.Millisecond / 1000); graphics.DrawLine(pen, 0, 0, 0, -800); graphics.Restore(graphicsState); } #endregion ////////////////////////////////////////////////////////////////////////////////////////// Private #region 좌표계 초기화 하기 - InitializeCoordinate(graphics) /// <summary> /// 좌표계 초기화 하기 /// </summary> /// <param name="graphics">그래픽스</param> private void InitializeCoordinate(Graphics graphics) { if(Width == 0 || Height == 0) { return; } graphics.TranslateTransform(Width / 2, Height / 2); float inches = Math.Min(Width / graphics.DpiX, Height / graphics.DpiY); graphics.ScaleTransform ( inches * graphics.DpiX / 2000, inches * graphics.DpiY / 2000 ); } #endregion #region 도트 그리기 - DrawDot(graphics, brush) /// <summary> /// 도트 그리기 /// </summary> /// <param name="graphics">그래픽스</param> /// <param name="brush">브러시</param> private void DrawDot(Graphics graphics, Brush brush) { for(int i = 0; i < 60; i++) { int size = i % 5 == 0 ? 100 : 30; graphics.FillEllipse(brush, 0 - size / 2, -900 - size / 2, size, size); graphics.RotateTransform(6); } } #endregion } } |
