■ DispatcherTimer 클래스를 사용해 파동 형태로 이동시키는 방법을 보여준다.
▶ MainWindow.xaml
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<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> |
▶ MainWindow.xaml.cs
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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 } } |
