ICODEBROKER

<Window x:Class="TestProject.MainWindow"

    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

    Width="800"

    Height="600"

    Title="DispatcherTimer 클래스 : 원 형태으로 이동시키기"

    FontFamily="나눔고딕코딩"

    FontSize="16">

    <Canvas Name="canvas" Margin="10">

        <Ellipse Name="ellipse"

            Width="30"

            Height="30"

            Fill="Orange" />

        <Button Name="button" Canvas.Right="10" Canvas.Bottom="10"

            Width="100"

            Height="30"

            Content="실행" />

    </Canvas>

</Window>

using System;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Threading;

namespace TestProject

{

    /// <summary>

    /// 메인 윈도우

    /// </summary>

    public partial class MainWindow : Window

    {

        //////////////////////////////////////////////////////////////////////////////////////////////////// Field

        ////////////////////////////////////////////////////////////////////////////////////////// Private

        #region Field

        /// <summary>

        /// 타이머

        /// </summary>

        private DispatcherTimer timer;

        /// <summary>

        /// 캔버스 중심 X

        /// </summary>

        private double canvasCenterX;

        /// <summary>

        /// 캔버스 중심 Y

        /// </summary>

        private double canvasCenterY;

        /// <summary>

        /// 타원 1/2 너비

        /// </summary>

        private double ellipseHalfWidth;

        /// <summary>

        /// 타원 1/2 높이

        /// </summary>

        private double ellipseHalfHeight;

        /// <summary>

        /// 반지름

        /// </summary>

        private double radius = 250;

        /// <summary>

        /// 각도

        /// </summary>

        private double angle = 0;

        #endregion

        //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor

        ////////////////////////////////////////////////////////////////////////////////////////// Public

        #region 생성자 - MainWindow()

        /// <summary>

        /// 생성자

        /// </summary>

        public MainWindow()

        {

            InitializeComponent();

            this.timer = new DispatcherTimer();

            this.timer.Interval = TimeSpan.FromMilliseconds(100);

            SizeChanged       += Window_SizeChanged;

            Loaded            += Window_Loaded;

            this.timer.Tick   += timer_Tick;

            this.button.Click += button_Click;

        }

        #endregion

        //////////////////////////////////////////////////////////////////////////////////////////////////// Method

        ////////////////////////////////////////////////////////////////////////////////////////// Private

        #region 윈도우 크기 변경시 처리하기 - Window_SizeChanged(sender, e)

        /// <summary>

        /// 윈도우 크기 변경시 처리하기

        /// </summary>

        /// <param name="sender">이벤트 발생자</param>

        /// <param name="e">이벤트 인자</param>

        private void Window_SizeChanged(object sender, SizeChangedEventArgs e)

        {

            this.canvasCenterX = this.canvas.ActualWidth  / 2;

            this.canvasCenterY = this.canvas.ActualHeight / 2;

        }

        #endregion

        #region 윈도우 로드시 처리하기 - Window_Loaded(sender, e)

        /// <summary>

        /// 윈도우 로드시 처리하기

        /// </summary>

        /// <param name="sender">이벤트 발생자</param>

        /// <param name="e">이벤트 인자</param>

        private void Window_Loaded(object sender, RoutedEventArgs e)

        {

            this.ellipseHalfWidth  = this.ellipse.Width  / 2;

            this.ellipseHalfHeight = this.ellipse.Height / 2;

            double ellipseLeft = this.canvasCenterX               - this.ellipseHalfWidth;

            double ellipseTop  = this.canvasCenterY + this.radius - this.ellipseHalfHeight;

            Canvas.SetLeft(this.ellipse, ellipseLeft);

            Canvas.SetTop (this.ellipse, ellipseTop );

        }

        #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)

        {

            this.angle = this.angle + 10;

            if(this.angle > 360)

            {

                this.angle = 0;

            }

            double radian = this.angle * Math.PI / 180;

            double ellipseLeft = this.canvasCenterX + this.radius * Math.Sin(radian) - this.ellipseHalfWidth;

            double ellipseTop  = this.canvasCenterY + this.radius * Math.Cos(radian) - this.ellipseHalfHeight;

            Canvas.SetLeft(this.ellipse, ellipseLeft);

            Canvas.SetTop (this.ellipse, ellipseTop );

        }

        #endregion

        #region 실행 버튼 클릭시 처리하기 - button_Click(sender, e)

        /// <summary>

        /// 실행 버튼 클릭시 처리하기

        /// </summary>

        /// <param name="sender">이벤트 발생자</param>

        /// <param name="e">이벤트 인자</param>

        private void button_Click(object sender, RoutedEventArgs e)

        {

            this.angle = 0;

            double ellipseLeft = this.canvasCenterX               - this.ellipseHalfWidth;

            double ellipseTop  = this.canvasCenterY + this.radius - this.ellipseHalfHeight;

            Canvas.SetLeft(this.ellipse, ellipseLeft);

            Canvas.SetTop (this.ellipse, ellipseTop );

            this.timer.Start();

        }

        #endregion

    }

}