[C#/WPF] DispatcherTimer 클래스 : 파동 형태로 이동시키기

TestProject.zip

다운로드

▶ MainWindow.xaml

<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 : 파동 형태로 이동시키기"
    FontFamily="나눔고딕코딩"
    FontSize="16">
    <Canvas Name="canvas" Margin="10">
        <Ellipse Name="ellipse" Canvas.Left="0" Canvas.Top="250" 
            Width="30"
            Height="30"
            Fill="Orange" />
        <Button Name="button" Canvas.Bottom="10" Canvas.Right="10"
            Width="100"
            Height="30"
            Content="실행" />
    </Canvas>
</Window>

 

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▶ MainWindow.xaml.cs

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>
        /// 진폭
        /// </summary>
        private const double AMPLITUDE = 50;

        /// <summary>
        /// 파장
        /// </summary>
        private const double WAVE_LENGTH = 100;

        /// <summary>
        /// 주기
        /// </summary>
        private const double CYCLE = 5;

        /// <summary>
        /// 시간
        /// </summary>
        private double time = 0;

        #endregion

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

        #region 생성자 - MainWindow()

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

            this.timer = new DispatcherTimer();

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

            this.timer.Tick   += timer_Tick;
            this.button.Click += button_Click;
        }

        #endregion

        //////////////////////////////////////////////////////////////////////////////////////////////////// Method
        ////////////////////////////////////////////////////////////////////////////////////////// Private

        #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)
        {
            double target = this.canvas.ActualWidth;

            double left = Canvas.GetLeft(this.ellipse) + 10;
            double top  = AMPLITUDE * Math.Sin(2 * Math.PI * this.time / CYCLE - 2 * Math.PI * left / WAVE_LENGTH) + 250;

            if(left + this.ellipse.Width > target)
            {
                this.timer.Stop();

                return;
            }

            this.time = this.time + 0.05;

            Canvas.SetLeft(this.ellipse, left);
            Canvas.SetTop (this.ellipse, top );
        }

        #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.time = 0;

            Canvas.SetLeft(this.ellipse, 0  );
            Canvas.SetTop (this.ellipse, 250);

            this.timer.Start();
        }

        #endregion
    }
}