[DEVEXPRESS/WINFORM] GaugeControl 클래스 : 게이지 컨트롤 커스텀 그리기

TestProject.zip

다운로드

▶ MainForm.cs

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

using DevExpress.XtraEditors;
using DevExpress.XtraGauges.Core.Primitive;
using DevExpress.XtraGauges.Core.Model;

namespace TestProject
{
    /// <summary>
    /// 메인 폼
    /// </summary>
    public partial class MainForm : XtraForm
    {
        //////////////////////////////////////////////////////////////////////////////////////////////////// Field
        ////////////////////////////////////////////////////////////////////////////////////////// Private

        #region Field

        /// <summary>
        /// 타이머
        /// </summary>
        private Timer timer;

        /// <summary>
        /// 애니메이션 잠금 카운터
        /// </summary>
        private int animationLockCounter = 0;

        /// <summary>
        /// 커스텀 그리기 여부
        /// </summary>
        private bool customDraw = false;

        #endregion

        //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor
        ////////////////////////////////////////////////////////////////////////////////////////// Public

        #region 생성자 - MainForm()

        /// <summary>
        /// 생성자
        /// </summary>
        public MainForm()
        {
            InitializeComponent();

            this.Load                                               += Form_Load;
            this.arcScaleNeedleComponent.CustomDrawElement          += arcScaleNeedleComponent_CustomDrawElement;
            this.arcScaleBackgroundLayerComponent.CustomDrawElement += arcScaleBackgroundLayerComponent_CustomDrawElement;
            this.arcScaleComponent.CustomDrawElement                += arcScaleComponent_CustomDrawElement;
            this.checkEdit.CheckStateChanged                        += checkEdit_CheckStateChanged;
        }

        #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)
        {
            this.timer = new Timer();

            this.timer.Interval = 150;

            this.timer.Tick += timer_Tick;

            this.timer.Start();
        }

        #endregion
        #region 아크 스케일 컴포넌트 요소 커스텀 그리기 - arcScaleComponent_CustomDrawElement(sender, e)

        /// <summary>
        /// 아크 스케일 컴포넌트 요소 커스텀 그리기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void arcScaleComponent_CustomDrawElement(object sender, CustomDrawElementEventArgs e)
        {
            if(this.customDraw)
            {
                e.Handled = true;
            }
        }

        #endregion
        #region 아크 스케일 배경 레이어 컴포넌트 요소 커스텀 그리기 - arcScaleBackgroundLayerComponent_CustomDrawElement(sender, e)

        /// <summary>
        /// 아크 스케일 배경 레이어 컴포넌트 요소 커스텀 그리기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void arcScaleBackgroundLayerComponent_CustomDrawElement(object sender, CustomDrawElementEventArgs e)
        {
            if(this.customDraw)
            {
                RectangleF rectangle = RectangleF.Inflate(e.Info.BoundBox, -15, -15);

                e.Context.Graphics.FillEllipse(Brushes.Black, rectangle);

                rectangle.Inflate(-2, -2);

                e.Context.Graphics.SetClip
                (
                    new RectangleF
                    (
                        rectangle.Left + rectangle.Width * 0.5f,
                        rectangle.Top,
                        rectangle.Width * 0.5f,
                        rectangle.Height
                    )
                );

                e.Context.Graphics.FillEllipse(Brushes.White, rectangle);

                e.Context.Graphics.ResetClip();

                e.Context.Graphics.FillEllipse
                (
                    Brushes.White,
                    new RectangleF
                    (
                        rectangle.Left + rectangle.Width * 0.25f,
                        rectangle.Top,
                        rectangle.Width * 0.5f,
                        rectangle.Height * 0.5f
                    )
                );

                e.Context.Graphics.FillEllipse
                (
                    Brushes.Black,
                    new RectangleF
                    (
                        rectangle.Left + rectangle.Width * 0.25f,
                        rectangle.Top + rectangle.Height * 0.5f,
                        rectangle.Width * 0.5f,
                        rectangle.Height * 0.5f
                    )
                );

                e.Handled = true;
            }
        }

        #endregion
        #region 아크 스케일 바늘 컴포넌트 요소 커스텀 그리기 - arcScaleNeedleComponent_CustomDrawElement(sender, e)

        /// <summary>
        /// 아크 스케일 바늘 컴포넌트 요소 커스텀 그리기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void arcScaleNeedleComponent_CustomDrawElement(object sender, CustomDrawElementEventArgs e)
        {
            if(this.customDraw)
            {
                e.Context.Graphics.FillEllipse(Brushes.White, new RectangleF(50, 112.5f, 25, 25));

                e.Context.Graphics.FillEllipse(Brushes.Black, new RectangleF(175, 112.5f, 25, 25));

                e.Handled = true;
            }
        }

        #endregion
        #region 체크 에디터 체크 상태 변경시 처리하기 - checkEdit_CheckStateChanged(sender, e)

        /// <summary>
        /// 체크 에디터 체크 상태 변경시 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void checkEdit_CheckStateChanged(object sender, EventArgs e)
        {
            this.customDraw = this.checkEdit.Checked;

            this.arcScaleBackgroundLayerComponent.Self.ResetCache(CacheKeys.RenderedImage);

            this.gaugeControl.Refresh();
        }

        #endregion
        #region 타이머 틱 처리하기 - timer_Tick(sender, e)

        /// <summary>
        /// 타이머 틱 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void timer_Tick(object sender, EventArgs e)
        {
            if(this.animationLockCounter > 0)
            {
                return;
            }

            this.animationLockCounter++;

            this.arcScaleComponent.Value = AnimateScaleValue(this.arcScaleComponent, 0.05f);

            this.animationLockCounter--;
        }

        #endregion

        //////////////////////////////////////////////////////////////////////////////// Function

        #region 스케일 값 애니메이션 처리하기 - AnimateScaleValue(baseScale, factor)

        /// <summary>
        /// 스케일 값 애니메이션 처리하기
        /// </summary>
        /// <param name="baseScale">베이스 스케일 인터페이스</param>
        /// <param name="factor">인자</param>
        /// <returns>스케일 값</returns>
        private float AnimateScaleValue(IBaseScale baseScale, float factor)
        {
            Random random = new Random(DateTime.Now.Millisecond);

            float deviation = ((float)random.NextDouble() - baseScale.Percent);

            return (baseScale.Value + (baseScale.ScaleLength * factor) * deviation);
        }

        #endregion
    }
}