■ DrawLine 클래스의 Select/DraggedLine 이벤트를 사용해 라인을 드래그하는 방법을 보여준다.
▶ MainForm.cs
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using System.Drawing; using System.Windows.Forms; using Steema.TeeChart.Drawing; using Steema.TeeChart.Styles; using Steema.TeeChart.Tools; namespace TestProject { /// <summary> /// 메인 폼 /// </summary> public partial class MainForm : Form { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 라인 /// </summary> private Line line; /// <summary> /// 라인 그리기 /// </summary> private DrawLine drawLine; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainForm() /// <summary> /// 생성자 /// </summary> public MainForm() { InitializeComponent(); Text = "DrawLine 클래스 : Select/DraggedLine 이벤트를 사용해 라인 드래그하기"; this.tChart.Panel.Pen = new ChartPen(Color.Black); this.line = new Line(this.tChart.Chart); this.line.FillSampleValues(30); this.drawLine = new DrawLine(this.tChart.Chart); this.drawLine.Pen.Width = 2; this.drawLine.Pen.Color = Color.Blue; this.drawLine.Active = true; this.drawLine.EnableDraw = true; this.drawLine.EnableSelect = true; this.drawLine.Button = MouseButtons.Left; DrawLineItem item = new DrawLineItem(this.drawLine); double delta = line.YValues.Range / 5.0; item.StartPos = new PointDouble(5 , this.line.YValues.Maximum - delta); item.EndPos = new PointDouble(15, this.line.YValues.Minimum + delta); this.drawLine.Select += drawLine_Select; this.drawLine.DraggedLine += drawLine_DraggedLine; this.drawLine.NewLine += drawLine_NewLine; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private //////////////////////////////////////////////////////////////////////////////// Event #region 라인 그리기 선택시 처리하기 - drawLine_Select(sender) /// <summary> /// 라인 그리기 선택시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> private void drawLine_Select(DrawLine sender) { SetLinePositionValueLebelData(); } #endregion #region 라인 그리기 라인 드래그시 처리하기 - drawLine_DraggedLine(sender) /// <summary> /// 라인 그리기 라인 드래그시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> private void drawLine_DraggedLine(DrawLine sender) { SetLinePositionValueLebelData(); } #endregion #region 라인 그리기 신규 라인 생성시 처리하기 - drawLine_NewLine(sender) /// <summary> /// 라인 그리기 신규 라인 생성시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> private void drawLine_NewLine(DrawLine sender) { SetLinePositionValueLebelData(); } #endregion //////////////////////////////////////////////////////////////////////////////// Function #region 라인 위치 값 레이블 데이터 설정하기 - SetLinePositionValueLebelData() /// <summary> /// 라인 위치 값 레이블 데이터 설정하기 /// </summary> private void SetLinePositionValueLebelData() { DrawLineItem item = this.drawLine.Selected; this.linePositionValueLabel.Text = $"({item.StartPos.X:0.00}, {item.StartPos.Y:0.00}) - ({item.EndPos.X:0.00}, {item.EndPos.Y:0.00})"; } #endregion } } |
