■ EventManager 클래스의 RegisterRoutedEvent 정적 메소드를 사용해 라우팅 이벤트를 만드는 방법을 보여준다.
▶ KnockButton.cs
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using System; using System.Globalization; using System.Windows; using System.Windows.Controls; using System.Windows.Input; using System.Windows.Media; namespace TestProject { /// <summary> /// 노크 버튼 /// </summary> public class KnockButton : Control { //////////////////////////////////////////////////////////////////////////////////////////////////// Event ////////////////////////////////////////////////////////////////////////////////////////// Public #region 노크 이벤트 - Knock /// <summary> /// 노크 이벤트 /// </summary> public event RoutedEventHandler Knock { add { AddHandler(KnockEvent, value); } remove { RemoveHandler(KnockEvent, value); } } #endregion #region 노크 사전 이벤트 - PreviewKnock /// <summary> /// 노크 사전 이벤트 /// </summary> public event RoutedEventHandler PreviewKnock { add { AddHandler(PreviewKnockEvent, value); } remove { RemoveHandler(PreviewKnockEvent, value); } } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region Field /// <summary> /// 텍스트 속성 /// </summary> public static readonly DependencyProperty TextProperty; /// <summary> /// 노크 이벤트 /// </summary> public static readonly RoutedEvent KnockEvent; /// <summary> /// 노크 사전 이벤트 /// </summary> public static readonly RoutedEvent PreviewKnockEvent; #endregion ////////////////////////////////////////////////////////////////////////////////////////// Instance //////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 포맷 텍스트 /// </summary> private FormattedText formattedText; /// <summary> /// 마우스 상위 여부 /// </summary> private bool isMouseReallyOver; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 텍스트 - Text /// <summary> /// 텍스트 /// </summary> public string Text { set { SetValue(TextProperty, value == null ? " " : value); } get { return (string)GetValue(TextProperty); } } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Static #region 생성자 - KnockButton() /// <summary> /// 생성자 /// </summary> static KnockButton() { TextProperty = DependencyProperty.Register ( "Text", typeof(string), typeof(KnockButton), new FrameworkPropertyMetadata ( " ", FrameworkPropertyMetadataOptions.AffectsMeasure ) ); KnockEvent = EventManager.RegisterRoutedEvent ( "Knock", RoutingStrategy.Bubble, typeof(RoutedEventHandler), typeof(KnockButton) ); PreviewKnockEvent = EventManager.RegisterRoutedEvent ( "PreviewKnock", RoutingStrategy.Tunnel, typeof(RoutedEventHandler), typeof(KnockButton) ); } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Protected #region 노크시 처리하기 - OnKnock() /// <summary> /// 노크시 처리하기 /// </summary> protected virtual void OnKnock() { RoutedEventArgs e = new RoutedEventArgs(); e.RoutedEvent = KnockButton.KnockEvent; e.Source = this; RaiseEvent(e); } #endregion #region 프리뷰 노크시 처리하기 - OnPreviewKnock() /// <summary> /// 프리뷰 노크시 처리하기 /// </summary> protected virtual void OnPreviewKnock() { RoutedEventArgs e = new RoutedEventArgs(); e.RoutedEvent = KnockButton.PreviewKnockEvent; e.Source = this; RaiseEvent(e); } #endregion #region 마우스 진입시 처리하기 - OnMouseEnter(e) /// <summary> /// 마우스 진입시 처리하기 /// </summary> /// <param name="e">이벤트 인자</param> protected override void OnMouseEnter(MouseEventArgs e) { base.OnMouseEnter(e); InvalidateVisual(); } #endregion #region 마우스 이탈시 처리하기 - OnMouseLeave(e) /// <summary> /// 마우스 이탈시 처리하기 /// </summary> /// <param name="e">이벤트 인자</param> protected override void OnMouseLeave(MouseEventArgs e) { base.OnMouseLeave(e); InvalidateVisual(); } #endregion #region 마우스 이동시 처리하기 - OnMouseMove(e) /// <summary> /// 마우스 이동시 처리하기 /// </summary> /// <param name="e">이벤트 발생자</param> protected override void OnMouseMove(MouseEventArgs e) { base.OnMouseMove(e); Point mousePoint = e.GetPosition(this); bool isReallyOverNow = ( mousePoint.X >= 0 && mousePoint.X < ActualWidth && mousePoint.Y >= 0 && mousePoint.Y < ActualHeight ); if(isReallyOverNow != this.isMouseReallyOver) { this.isMouseReallyOver = isReallyOverNow; InvalidateVisual(); } } #endregion #region 마우스 왼쪽 버튼 DOWN 처리하기 - OnMouseLeftButtonDown(e) /// <summary> /// 마우스 왼쪽 버튼 DOWN 처리하기 /// </summary> /// <param name="e">이벤트 인자</param> protected override void OnMouseLeftButtonDown(MouseButtonEventArgs e) { base.OnMouseLeftButtonDown(e); CaptureMouse(); InvalidateVisual(); e.Handled = true; } #endregion #region 마우스 왼쪽 버튼 UP 처리하기 - OnMouseLeftButtonUp(e) /// <summary> /// 마우스 왼쪽 버튼 UP 처리하기 /// </summary> /// <param name="e">이벤트 인자</param> protected override void OnMouseLeftButtonUp(MouseButtonEventArgs e) { base.OnMouseLeftButtonUp(e); if(IsMouseCaptured) { if(this.isMouseReallyOver) { OnPreviewKnock(); OnKnock(); } e.Handled = true; Mouse.Capture(null); } } #endregion #region 마우스 캡처 해제시 처리하기 - OnLostMouseCapture(e) /// <summary> /// 마우스 캡처 해제시 처리하기 /// </summary> /// <param name="e">이벤트 인자</param> protected override void OnLostMouseCapture(MouseEventArgs e) { base.OnLostMouseCapture(e); InvalidateVisual(); } #endregion #region 키 DOWN 처리하기 - OnKeyDown(e) /// <summary> /// 키 DOWN 처리하기 /// </summary> /// <param name="e">이벤트 인자</param> protected override void OnKeyDown(KeyEventArgs e) { base.OnKeyDown(e); if(e.Key == Key.Space || e.Key == Key.Enter) { e.Handled = true; } } #endregion #region 키 UP 처리하기 - OnKeyUp(e) /// <summary> /// 키 UP 처리하기 /// </summary> /// <param name="e">이벤트 인자</param> protected override void OnKeyUp(KeyEventArgs e) { base.OnKeyUp(e); if(e.Key == Key.Space || e.Key == Key.Enter) { OnPreviewKnock(); OnKnock(); e.Handled = true; } } #endregion #region 측정하기 (오버라이딩) - MeasureOverride(availableSize) /// <summary> /// 측정하기 (오버라이딩) /// </summary> /// <param name="availableSize">이용 가능한 크기</param> /// <returns>측정 크기</returns> protected override Size MeasureOverride(Size availableSize) { this.formattedText = new FormattedText ( Text, CultureInfo.CurrentCulture, FlowDirection, new Typeface(FontFamily, FontStyle, FontWeight, FontStretch), FontSize, Foreground ); Size desiredSize = new Size(Math.Max(48, this.formattedText.Width) + 4, this.formattedText.Height + 4); desiredSize.Width += Padding.Left + Padding.Right; desiredSize.Height += Padding.Top + Padding.Bottom; desiredSize.Width = Math.Min(desiredSize.Width , availableSize.Width ); desiredSize.Height = Math.Min(desiredSize.Height, availableSize.Height); return desiredSize; } #endregion #region 렌더링 처리하기 - OnRender(drawingContext) /// <summary> /// 렌더링 처리하기 /// </summary> /// <param name="drawingContext">DrawingContext</param> protected override void OnRender(DrawingContext drawingContext) { Brush backgroundBrush = SystemColors.ControlBrush; if(this.isMouseReallyOver && IsMouseCaptured) { backgroundBrush = SystemColors.ControlDarkBrush; } Pen pen = new Pen(Foreground, IsMouseOver ? 2 : 1); drawingContext.DrawRoundedRectangle ( backgroundBrush, pen, new Rect(new Point(0, 0), RenderSize), 4, 4 ); this.formattedText.SetForegroundBrush ( IsEnabled ? Foreground : SystemColors.ControlDarkBrush ); Point textPoint = new Point(2, 2); switch(HorizontalContentAlignment) { case HorizontalAlignment.Left : textPoint.X += Padding.Left; break; case HorizontalAlignment.Right : textPoint.X += RenderSize.Width - this.formattedText.Width - Padding.Right; break; case HorizontalAlignment.Center : case HorizontalAlignment.Stretch : textPoint.X += (RenderSize.Width - this.formattedText.Width - Padding.Left - Padding.Right) / 2; break; } switch(VerticalContentAlignment) { case VerticalAlignment.Top : textPoint.Y += Padding.Top; break; case VerticalAlignment.Bottom : textPoint.Y += RenderSize.Height - this.formattedText.Height - Padding.Bottom; break; case VerticalAlignment.Center : case VerticalAlignment.Stretch : textPoint.Y += (RenderSize.Height - this.formattedText.Height - Padding.Top - Padding.Bottom) / 2; break; } drawingContext.DrawText(this.formattedText, textPoint); } #endregion } } |
▶ 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" xmlns:local="clr-namespace:TestProject" Width="800" Height="600" Title="EventManager 클래스 : RegisterRoutedEvent 정적 메소드를 사용해 라우팅 이벤트 만들기" FontFamily="나눔고딕코딩" FontSize="16"> <Grid> <local:KnockButton x:Name="button" HorizontalAlignment="Center" VerticalAlignment="Center" Width="100" Height="30" Text="테스트" /> </Grid> </Window> |
▶ MainWindow.xaml.cs
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using System.Windows; namespace TestProject { /// <summary> /// 메인 윈도우 /// </summary> public partial class MainWindow : Window { //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainWindow() /// <summary> /// 생성자 /// </summary> public MainWindow() { InitializeComponent(); this.button.PreviewKnock += button_PreviewKnock; this.button.Knock += button_Knock; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private #region 버튼 프리뷰 노크시 처리하기 - button_PreviewKnock(sender, e) /// <summary> /// 버튼 프리뷰 노크시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void button_PreviewKnock(object sender, RoutedEventArgs e) { MessageBox.Show(this, "버튼 프리뷰 노크 이벤트"); } #endregion #region 버튼 노크시 처리하기 - button_Knock(sender, e) /// <summary> /// 버튼 노크시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void button_Knock(object sender, RoutedEventArgs e) { MessageBox.Show(this, "버튼 노크 이벤트"); } #endregion } } |
