■ Adorner 클래스를 사용해 크기 조정 어도너를 만드는 방법을 보여준다.
▶ ResizingAdorner.cs
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using System; using System.Windows; using System.Windows.Controls.Primitives; using System.Windows.Documents; using System.Windows.Input; using System.Windows.Media; namespace TestProject { /// <summary> /// 크기 조정 어도너 /// </summary> public class ResizingAdorner : Adorner { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 좌상단 썸 /// </summary> private Thumb topLeftThumb; /// <summary> /// 우상단 썸 /// </summary> private Thumb topRightThumb; /// <summary> /// 좌하단 썸 /// </summary> private Thumb bottomLeftThumb; /// <summary> /// 우하단 썸 /// </summary> private Thumb bottomRightThumb; /// <summary> /// 비주얼 컬렉션 /// </summary> private VisualCollection visualCollection; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Protected #region 비주얼 자식 수 - VisualChildrenCount /// <summary> /// 비주얼 자식 수 /// </summary> protected override int VisualChildrenCount { get { return this.visualCollection.Count; } } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - ResizingAdorner(targetElement) /// <summary> /// 생성자 /// </summary> /// <param name="targetElement">타겟 엘리먼트</param> public ResizingAdorner(UIElement targetElement) : base(targetElement) { this.visualCollection = new VisualCollection(this); SetThumb(ref this.topLeftThumb , Cursors.SizeNWSE); SetThumb(ref this.topRightThumb , Cursors.SizeNESW); SetThumb(ref this.bottomLeftThumb , Cursors.SizeNESW); SetThumb(ref this.bottomRightThumb, Cursors.SizeNWSE); this.topLeftThumb.DragDelta += topLeftThumb_DragDelta; this.topRightThumb.DragDelta += topRightThumb_DragDelta; this.bottomLeftThumb.DragDelta += bottomLeftThumb_DragDelta; this.bottomRightThumb.DragDelta += bottomRightThumb_DragDelta; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Protected //////////////////////////////////////////////////////////////////////////////// Function #region 비주얼 자식 수 구하기 - GetVisualChild(index) /// <summary> /// 비주얼 자식 수 구하기 /// </summary> /// <param name="index">인덱스</param> /// <returns>비주얼 자식 수</returns> protected override Visual GetVisualChild(int index) { return this.visualCollection[index]; } #endregion #region 배열하기 (오버라이드) - ArrangeOverride(finalSize) /// <summary> /// 배열하기 (오버라이드) /// </summary> /// <param name="finalSize">최종 크기</param> /// <returns>크기</returns> protected override Size ArrangeOverride(Size finalSize) { double desiredWidth = AdornedElement.DesiredSize.Width; double desiredHeight = AdornedElement.DesiredSize.Height; double adornerWidth = DesiredSize.Width; double adornerHeight = DesiredSize.Height; this.topLeftThumb.Arrange ( new Rect ( -adornerWidth / 2, -adornerHeight / 2, adornerWidth, adornerHeight ) ); this.topRightThumb.Arrange ( new Rect ( desiredWidth - adornerWidth / 2, -adornerHeight / 2, adornerWidth, adornerHeight ) ); this.bottomLeftThumb.Arrange ( new Rect ( -adornerWidth / 2, desiredHeight - adornerHeight / 2, adornerWidth, adornerHeight ) ); this.bottomRightThumb.Arrange ( new Rect ( desiredWidth - adornerWidth / 2, desiredHeight - adornerHeight / 2, adornerWidth, adornerHeight ) ); return finalSize; } #endregion ////////////////////////////////////////////////////////////////////////////////////////// Private //////////////////////////////////////////////////////////////////////////////// Event #region 좌상단 썸 드래그 델타 처리하기 - topLeftThumb_DragDelta(sender, e) /// <summary> /// 좌상단 썸 드래그 델타 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void topLeftThumb_DragDelta(object sender, DragDeltaEventArgs e) { FrameworkElement element = AdornedElement as FrameworkElement; Thumb thumb = sender as Thumb; if(element == null || thumb == null) { return; } SetSize(element); element.Width = Math.Max(element.Width - e.HorizontalChange, thumb.DesiredSize.Width ); element.Height = Math.Max(element.Height - e.VerticalChange , thumb.DesiredSize.Height); } #endregion #region 우상단 썸 드래그 델타 처리하기 - topRightThumb_DragDelta(sender, e) /// <summary> /// 우상단 썸 드래그 델타 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void topRightThumb_DragDelta(object sender, DragDeltaEventArgs e) { FrameworkElement element = AdornedElement as FrameworkElement; Thumb thumb = sender as Thumb; if(element == null || thumb == null) { return; } SetSize(element); element.Width = Math.Max(element.Width + e.HorizontalChange, thumb.DesiredSize.Width ); element.Height = Math.Max(element.Height - e.VerticalChange , thumb.DesiredSize.Height); } #endregion #region 좌하단 썸 드래그 델타 처리하기 - bottomLeftThumb_DragDelta(sender, e) /// <summary> /// 좌하단 썸 드래그 델타 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void bottomLeftThumb_DragDelta(object sender, DragDeltaEventArgs e) { FrameworkElement element = AdornedElement as FrameworkElement; Thumb thumb = sender as Thumb; if(element == null || thumb == null) { return; } SetSize(element); element.Width = Math.Max(element.Width - e.HorizontalChange, thumb.DesiredSize.Width ); element.Height = Math.Max(e.VerticalChange + element.Height , thumb.DesiredSize.Height); } #endregion #region 우하단 썸 드래그 델타 처리하기 - bottomRightThumb_DragDelta(sender, e) /// <summary> /// 우하단 썸 드래그 델타 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void bottomRightThumb_DragDelta(object sender, DragDeltaEventArgs e) { FrameworkElement element = AdornedElement as FrameworkElement; Thumb thumb = sender as Thumb; if(element == null || thumb == null) { return; } SetSize(element); element.Width = Math.Max(element.Width + e.HorizontalChange, thumb.DesiredSize.Width ); element.Height = Math.Max(e.VerticalChange + element.Height , thumb.DesiredSize.Height); } #endregion //////////////////////////////////////////////////////////////////////////////// Function #region 썸 설정하기 - SetThumb(thumb, cursor) /// <summary> /// 썸 설정하기 /// </summary> /// <param name="thumb">코너 썸</param> /// <param name="cursor">커서</param> private void SetThumb(ref Thumb thumb, Cursor cursor) { if(thumb != null) { return; } thumb = new Thumb(); thumb.Height = thumb.Width = 10; thumb.Opacity = 0.40; thumb.Background = new SolidColorBrush(Colors.MediumBlue); thumb.Cursor = cursor; this.visualCollection.Add(thumb); } #endregion #region 크기 설정하기 - SetSize(targetElement) /// <summary> /// 크기 설정하기 /// </summary> /// <param name="targetElement">타겟 엘리먼트</param> private void SetSize(FrameworkElement targetElement) { if(targetElement.Width.Equals(Double.NaN)) { targetElement.Width = targetElement.DesiredSize.Width; } if(targetElement.Height.Equals(Double.NaN)) { targetElement.Height = targetElement.DesiredSize.Height; } FrameworkElement parentElement = targetElement.Parent as FrameworkElement; if(parentElement != null) { targetElement.MaxHeight = parentElement.ActualHeight; targetElement.MaxWidth = parentElement.ActualWidth; } } #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" Width="800" Height="600" Title="Adorner 클래스 : 크기 조정 어도너 사용하기" FontFamily="나눔고딕코딩" FontSize="16"> <Grid Name="grid" ClipToBounds="True" ShowGridLines="True"> <Grid.ColumnDefinitions> <ColumnDefinition /> <ColumnDefinition /> <ColumnDefinition /> </Grid.ColumnDefinitions> <Grid.RowDefinitions> <RowDefinition /> <RowDefinition /> </Grid.RowDefinitions> <Grid Grid.Row="0" Grid.Column="0"> <Button Width="100" Height="30" HorizontalAlignment="Center" VerticalAlignment="Center" Content="Button" /> </Grid> <Grid Grid.Row="0" Grid.Column="1"> <TextBlock HorizontalAlignment="Center" VerticalAlignment="Center" Text="TextBlock" /> </Grid> <Grid Grid.Row="0" Grid.Column="2"> <TextBox Width="100" Height="30" HorizontalAlignment="Center" VerticalAlignment="Center" Text="TextBox" /> </Grid> <Grid Grid.Row="1" Grid.Column="0"> <CheckBox HorizontalAlignment="Center" VerticalAlignment="Center" Content=" CheckBox" /> </Grid> <Grid Grid.Row="1" Grid.Column="1"> <ComboBox HorizontalAlignment="Center" VerticalAlignment="Center"> <ComboBoxItem Content="Item 1" /> <ComboBoxItem Content="Item 2" /> <ComboBoxItem Content="Item 3" /> </ComboBox> </Grid> <Grid Grid.Column="2" Grid.Row="1"> <FlowDocumentPageViewer Width="200" Height="200" HorizontalAlignment="Center" VerticalAlignment="Center" /> </Grid> </Grid> </Window> |
▶ MainWindow.xaml.cs
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using System.Windows; using System.Windows.Controls; using System.Windows.Documents; namespace TestProject { /// <summary> /// 메인 윈도우 /// </summary> public partial class MainWindow : Window { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 어도너 레이어 /// </summary> private AdornerLayer adornerLayer; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainWindow() /// <summary> /// 생성자 /// </summary> public MainWindow() { InitializeComponent(); Loaded += Window_Loaded; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private #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.adornerLayer = AdornerLayer.GetAdornerLayer(this.grid); foreach(Panel panel in grid.Children) { this.adornerLayer.Add(new ResizingAdorner(panel.Children[0])); } } #endregion } } |
