■ Gradient 클래스에서 커스텀 그라디언트를 사용하는 방법을 보여준다.
▶ MainForm.cs
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using System; using System.Drawing; using System.Windows.Forms; using Steema.TeeChart.Drawing; using Steema.TeeChart.Tools; namespace TestProject { /// <summary> /// 메인 폼 /// </summary> public partial class MainForm : Form { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 사각형 도구 /// </summary> private RectangleTool rectangleTool; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainForm() /// <summary> /// 생성자 /// </summary> public MainForm() { InitializeComponent(); Text = "Gradient 클래스 : 커스텀 그라디언트 사용하기"; this.radialRadioButton.Checked = true; this.xOffsetNumericUpDown.Value = 50; this.yOffsetNumericUpDown.Value = 50; this.tChart.Panel.Pen = new ChartPen(Color.Black); this.rectangleTool = new RectangleTool(this.tChart.Chart); SetGradient(this.rectangleTool.Shape.Gradient, PathGradientMode.Radial); this.tChart.Resize += tChart_Resize; this.radialRadioButton.CheckedChanged += radialRadioButton_CheckedChanged; this.fromCenterRadioButton.CheckedChanged += fromCenterRadioButton_CheckedChanged; this.xOffsetNumericUpDown.ValueChanged += xOffsetNumericUpDown_ValueChanged; this.yOffsetNumericUpDown.ValueChanged += yOffsetNumericUpDown_ValueChanged; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private //////////////////////////////////////////////////////////////////////////////// Event #region 방사형 라디오 버튼 체크 변경시 처리하기 - radialRadioButton_CheckedChanged(sender, e) /// <summary> /// 방사형 라디오 버튼 체크 변경시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void radialRadioButton_CheckedChanged(object sender, EventArgs e) { if(this.radialRadioButton.Checked) { this.rectangleTool.Shape.Gradient.Style.Direction = PathGradientMode.Radial; } } #endregion #region 중심에서 라디오 버튼 체크 변경시 처리하기 - fromCenterRadioButton_CheckedChanged(sender, e) /// <summary> /// 중심에서 라디오 버튼 체크 변경시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void fromCenterRadioButton_CheckedChanged(object sender, EventArgs e) { if(this.fromCenterRadioButton.Checked) { this.rectangleTool.Shape.Gradient.Style.Direction = PathGradientMode.FromCenter; } } #endregion #region X 오프셋 숫자 UP/DOWN 값 변경시 처리하기 - xOffsetNumericUpDown_ValueChanged(sender, e) /// <summary> /// X 오프셋 숫자 UP/DOWN 값 변경시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void xOffsetNumericUpDown_ValueChanged(object sender, EventArgs e) { this.rectangleTool.Shape.Gradient.Style.CenterXOffset = (int)this.xOffsetNumericUpDown.Value; } #endregion #region Y 오프셋 숫자 UP/DOWN 값 변경시 처리하기 - yOffsetNumericUpDown_ValueChanged(sender, e) /// <summary> /// Y 오프셋 숫자 UP/DOWN 값 변경시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void yOffsetNumericUpDown_ValueChanged(object sender, EventArgs e) { this.rectangleTool.Shape.Gradient.Style.CenterYOffset = (int)this.yOffsetNumericUpDown.Value; } #endregion #region TChart 크기 변경시 처리하기 - tChart_Resize(sender, e) /// <summary> /// TChart 크기 변경시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void tChart_Resize(object sender, EventArgs e) { if(this.rectangleTool != null) { this.radialRadioButton.Checked = true; } } #endregion //////////////////////////////////////////////////////////////////////////////// Function #region 그라디언트 설정하기 - SetGradient(gradient, pathGradientMode) /// <summary> /// 그라디언트 설정하기 /// </summary> /// <param name="gradient">그라디언트</param> /// <param name="pathGradientMode">경로 그라디언트 모드</param> private void SetGradient(Gradient gradient, PathGradientMode pathGradientMode) { Color[] customGradientPaletteColorArray = new Color[] { Color.FromArgb(120, Color.Red ), Color.FromArgb(120, Color.Yellow), Color.FromArgb(120, Color.Blue ), Color.FromArgb(120, Color.Violet) }; gradient.CustomTargetRectangle = new Rectangle(0, 0, this.tChart.Width, this.tChart.Height); gradient.ExtendedColorPalette = customGradientPaletteColorArray; gradient.Style.Direction = pathGradientMode; gradient.Style.CenterXOffset = 50; gradient.Style.CenterYOffset = 50; gradient.Style.Visible = true; gradient.Visible = true; } #endregion } } |
