■ UIElement 클래스를 사용해 잉크 입력 컨트롤에서 잉크를 선택하는 방법을 보여준다.
▶ InkMode.cs
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namespace TestProject { /// <summary> /// 잉크 모드 /// </summary> public enum InkMode { /// <summary> /// 잉크 /// </summary> Ink, /// <summary> /// 선택 /// </summary> Select } } |
▶ InkControl.cs
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using System; using System.Windows; using System.Windows.Controls; using System.Windows.Ink; using System.Windows.Input; using System.Windows.Input.StylusPlugIns; using System.Windows.Media; namespace TestProject { /// <summary> /// 잉크 컨트롤 /// </summary> public class InkControl : Label { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 잉크 모드 /// </summary> private InkMode mode; /// <summary> /// 잉크 드로잉 어트리뷰트 /// </summary> private DrawingAttributes inkDrawingAttributes; /// <summary> /// 선택 드로잉 어트리뷰트 /// </summary> private DrawingAttributes selectionDrawingAttributes; /// <summary> /// 잉크 프리젠터 /// </summary> private InkPresenter presenter; /// <summary> /// 선택 증분 올가미 히트 테스터 /// </summary> private IncrementalLassoHitTester selectionIncrementalLassoHitTester; /// <summary> /// 선택 스트로크 컬렉션 /// </summary> private StrokeCollection selectedStrokeCollection = new StrokeCollection(); /// <summary> /// 스타일러스 포인트 컬렉션 /// </summary> private StylusPointCollection stylusPointCollection; /// <summary> /// 올가미 경로 스트로크 /// </summary> private Stroke lassoPathStroke; /// <summary> /// 동적 렌더러 /// </summary> private DynamicRenderer renderer; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 모드 - Mode /// <summary> /// 모드 /// </summary> public InkMode Mode { get { return this.mode; } set { this.mode = value; if(this.mode == InkMode.Ink) { this.renderer.DrawingAttributes = this.inkDrawingAttributes; } else { this.renderer.DrawingAttributes = this.selectionDrawingAttributes; } this.presenter.DetachVisuals(this.renderer.RootVisual); this.presenter.AttachVisuals(this.renderer.RootVisual, this.renderer.DrawingAttributes); } } #endregion #region 잉크 드로잉 어트리뷰트 - InkDrawingAttributes /// <summary> /// 잉크 드로잉 어트리뷰트 /// </summary> public DrawingAttributes InkDrawingAttributes { get { return this.inkDrawingAttributes; } } #endregion #region 선택 드로잉 어트리뷰트 - SelectionDrawingAttributes /// <summary> /// 선택 드로잉 어트리뷰트 /// </summary> public DrawingAttributes SelectionDrawingAttributes { get { return this.selectionDrawingAttributes; } } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Static #region 생성자 - InkControl() /// <summary> /// 생성자 /// </summary> static InkControl() { Type ownerType = typeof(InkControl); ClipToBoundsProperty.OverrideMetadata(ownerType, new FrameworkPropertyMetadata(true)); } #endregion ////////////////////////////////////////////////////////////////////////////////////////// Instance //////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - InkControl() /// <summary> /// 생성자 /// </summary> public InkControl() { this.mode = InkMode.Ink; this.presenter = new InkPresenter(); Content = this.presenter; this.inkDrawingAttributes = new DrawingAttributes(); this.inkDrawingAttributes.Width = 5; this.inkDrawingAttributes.Height = 5; this.selectionDrawingAttributes = new DrawingAttributes(); this.selectionDrawingAttributes.Color = Colors.DarkGray; this.selectionDrawingAttributes.Width = 3; this.selectionDrawingAttributes.Height = 3; this.inkDrawingAttributes.AttributeChanged += new PropertyDataChangedEventHandler(drawingAttributes_AttributeChanged); this.selectionDrawingAttributes.AttributeChanged += new PropertyDataChangedEventHandler(drawingAttributes_AttributeChanged); this.renderer = new DynamicRenderer(); this.renderer.DrawingAttributes = this.inkDrawingAttributes; StylusPlugIns.Add(this.renderer); this.presenter.AttachVisuals(this.renderer.RootVisual, this.renderer.DrawingAttributes); } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Protected #region 스타일러스 DOWN 처리하기 - OnStylusDown(e) /// <summary> /// 스타일러스 DOWN 처리하기 /// </summary> /// <param name="e">이벤트 인자</param> protected override void OnStylusDown(StylusDownEventArgs e) { base.OnStylusDown(e); Stylus.Capture(this); this.stylusPointCollection = new StylusPointCollection(); StylusPointCollection pointCollection = e.GetStylusPoints(this, this.stylusPointCollection.Description); this.stylusPointCollection.Add(pointCollection); InitializeHitTester(pointCollection); } #endregion #region 스타일러스 이동시 처리하기 - OnStylusMove(e) /// <summary> /// 스타일러스 이동시 처리하기 /// </summary> /// <param name="e">이벤트 인자</param> protected override void OnStylusMove(StylusEventArgs e) { if(this.stylusPointCollection == null) { return; } StylusPointCollection pointCollection = e.GetStylusPoints(this, this.stylusPointCollection.Description); this.stylusPointCollection.Add(pointCollection); AddPointsToHitTester(pointCollection); } #endregion #region 스타일러스 UP 처리하기 - OnStylusUp(e) /// <summary> /// 스타일러스 UP 처리하기 /// </summary> /// <param name="e">이벤트 발생자</param> protected override void OnStylusUp(StylusEventArgs e) { this.stylusPointCollection = this.stylusPointCollection ?? new StylusPointCollection(); StylusPointCollection pointCollection = e.GetStylusPoints(this, this.stylusPointCollection.Description); this.stylusPointCollection.Add(pointCollection); AddPointsToHitTester(pointCollection); AddStrokeToPresenter(Mode == InkMode.Select); this.stylusPointCollection = null; Stylus.Capture(null); } #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); Mouse.Capture(this); if(e.StylusDevice != null) { return; } Point point = e.GetPosition(this); StylusPointCollection pointCollection = new StylusPointCollection(new Point[] { point }); this.stylusPointCollection = new StylusPointCollection(); this.stylusPointCollection.Add(pointCollection); InitializeHitTester(pointCollection); } #endregion #region 마우스 이동시 처리하기 - OnMouseMove(e) /// <summary> /// 마우스 이동시 처리하기 /// </summary> /// <param name="e">이벤트 인자</param> protected override void OnMouseMove(MouseEventArgs e) { base.OnMouseMove(e); if(e.StylusDevice != null) { return; } if(e.LeftButton == MouseButtonState.Released) { return; } this.stylusPointCollection = this.stylusPointCollection ?? new StylusPointCollection(); Point point = e.GetPosition(this); StylusPointCollection pointCollection = new StylusPointCollection(new Point[] { point }); this.stylusPointCollection.Add(pointCollection); AddPointsToHitTester(pointCollection); } #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(e.StylusDevice != null) { return; } if(this.stylusPointCollection == null) { this.stylusPointCollection = new StylusPointCollection(); } Point point = e.GetPosition(this); StylusPointCollection pointCollection = new StylusPointCollection(new Point[] { point }); this.stylusPointCollection.Add(pointCollection); AddPointsToHitTester(pointCollection); AddStrokeToPresenter(Mode == InkMode.Select); this.stylusPointCollection = null; Mouse.Capture(null); } #endregion ////////////////////////////////////////////////////////////////////////////////////////// Private //////////////////////////////////////////////////////////////////////////////// Event #region 드로잉 어트리뷰트 어트리뷰트 변경시 처리하기 - drawingAttributes_AttributeChanged(sender, e) /// <summary> /// 드로잉 어트리뷰트 어트리뷰트 변경시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void drawingAttributes_AttributeChanged(object sender, PropertyDataChangedEventArgs e) { this.presenter.DetachVisuals(this.renderer.RootVisual); this.presenter.AttachVisuals(this.renderer.RootVisual, this.renderer.DrawingAttributes); } #endregion #region 선택 증분 올가미 히트 테스터 선택 변경시 처리하기 - selectionIncrementalLassoHitTester_SelectionChanged(sender, e) /// <summary> /// 선택 증분 올가미 히트 테스터 선택 변경시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void selectionIncrementalLassoHitTester_SelectionChanged(object sender, LassoSelectionChangedEventArgs e) { foreach(Stroke selectedStroke in e.SelectedStrokes) { selectedStroke.DrawingAttributes.Color = Colors.Red; this.selectedStrokeCollection.Add(selectedStroke); } foreach(Stroke unselectedStroke in e.DeselectedStrokes) { unselectedStroke.DrawingAttributes.Color = this.inkDrawingAttributes.Color; this.selectedStrokeCollection.Remove(unselectedStroke); } } #endregion //////////////////////////////////////////////////////////////////////////////// Function #region 히트 테스터 초기화하기 - InitializeHitTester(pointCollection) /// <summary> /// 히트 테스터 초기화하기 /// </summary> /// <param name="pointCollection">포인트 컬렉션</param> private void InitializeHitTester(StylusPointCollection pointCollection) { foreach(Stroke selectedStroke in this.selectedStrokeCollection) { selectedStroke.DrawingAttributes.Color = this.inkDrawingAttributes.Color; } this.selectedStrokeCollection.Clear(); if(this.mode == InkMode.Select) { if(this.lassoPathStroke != null) { this.presenter.Strokes.Remove(this.lassoPathStroke); this.lassoPathStroke = null; } this.selectionIncrementalLassoHitTester = this.presenter.Strokes.GetIncrementalLassoHitTester(80); this.selectionIncrementalLassoHitTester.SelectionChanged += selectionIncrementalLassoHitTester_SelectionChanged; this.selectionIncrementalLassoHitTester.AddPoints(pointCollection); } } #endregion #region 히트 테스트에 포인트 추가하기 - AddPointsToHitTester(pointCollection) /// <summary> /// 히트 테스트에 포인트 추가하기 /// </summary> /// <param name="pointCollection">포인트 컬렉션</param> private void AddPointsToHitTester(StylusPointCollection pointCollection) { if(this.mode == InkMode.Select && this.selectionIncrementalLassoHitTester != null && this.selectionIncrementalLassoHitTester.IsValid) { this.selectionIncrementalLassoHitTester.AddPoints(pointCollection); } } #endregion #region 프리젠터에 스트로크 추가하기 - AddStrokeToPresenter() /// <summary> /// 프리젠터에 스트로크 추가하기 /// </summary> private void AddStrokeToPresenter(bool up = false) { Stroke newStroke = new Stroke(this.stylusPointCollection); if(this.mode == InkMode.Ink) { newStroke.DrawingAttributes = this.inkDrawingAttributes.Clone(); this.presenter.Strokes.Add(newStroke); } if(this.mode == InkMode.Select && this.lassoPathStroke == null) { if(up) { this.presenter.Strokes.Remove(this.lassoPathStroke); } else { this.lassoPathStroke = newStroke; this.lassoPathStroke.DrawingAttributes = this.selectionDrawingAttributes.Clone(); this.presenter.Strokes.Add(this.lassoPathStroke); this.selectionIncrementalLassoHitTester.SelectionChanged -= selectionIncrementalLassoHitTester_SelectionChanged; this.selectionIncrementalLassoHitTester.EndHitTesting(); } } } #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="TestProject" FontFamily="나눔고딕코딩" FontSize="16"> <Grid> <local:InkControl x:Name="inkControl" /> <StackPanel HorizontalAlignment="Left" VerticalAlignment="Top" Margin="10" Orientation="Vertical"> <Button Name="inkButton" HorizontalAlignment="Left" Width="100" Height="30" Content="잉크" /> <Button Name="selectButton" HorizontalAlignment="Left" Margin="0 10 0 0" Width="100" Height="30" Content="선택하기" /> </StackPanel> </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.inkButton.Click += inkButton_Click; this.selectButton.Click += selectButton_Click; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private #region 잉크 버튼 클릭시 처리하기 - inkButton_Click(sender, e) /// <summary> /// 잉크 버튼 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void inkButton_Click(object sender, RoutedEventArgs e) { this.inkControl.Mode = InkMode.Ink; } #endregion #region 선택하기 버튼 클릭시 처리하기 - selectButton_Click(sender, e) /// <summary> /// 선택하기 버튼 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void selectButton_Click(object sender, RoutedEventArgs e) { this.inkControl.Mode = InkMode.Select; } #endregion } } |
