add editor, fix some bugs

WIP

Azaion.Annotator/Controls/CanvasEditor.cs

@@ -13,7 +13,8 @@ namespace Azaion.Annotator.Controls;
 public class CanvasEditor : Canvas
 {
     private Point _lastPos;
-    
+    public SelectionState SelectionState { get; set; } = SelectionState.None;
+
     private readonly Rectangle _newAnnotationRect;
     private Point _newAnnotationStartPos;
     
@@ -30,6 +31,19 @@ public class CanvasEditor : Canvas
     public FormState FormState { get; set; } = null!;
     public IMediator Mediator { get; set; } = null!;
 
+    public static readonly DependencyProperty GetTimeFuncProp =
+        DependencyProperty.Register(
+            nameof(GetTimeFunc),
+            typeof(Func<TimeSpan>),
+            typeof(CanvasEditor),
+            new PropertyMetadata(null));
+
+    public Func<TimeSpan> GetTimeFunc
+    {
+        get => (Func<TimeSpan>)GetValue(GetTimeFuncProp);
+        set => SetValue(GetTimeFuncProp, value);
+    }
+
     private AnnotationClass _currentAnnClass = null!;
     public AnnotationClass CurrentAnnClass
     {
@@ -84,11 +98,7 @@ public class CanvasEditor : Canvas
             Stroke = new SolidColorBrush(Colors.Gray),
             Fill = new SolidColorBrush(Color.FromArgb(128, 128, 128, 128)),
         };
-        Loaded += Init;
-    }
 
-    private void Init(object sender, RoutedEventArgs e)
-    {
         KeyDown += (_, args) =>
         {
             Console.WriteLine($"pressed {args.Key}");
@@ -98,15 +108,21 @@ public class CanvasEditor : Canvas
         MouseUp += CanvasMouseUp;
         SizeChanged += CanvasResized;
         Cursor = Cursors.Cross;
-        _horizontalLine.X1 = 0;
-        _horizontalLine.X2 = ActualWidth;
-        _verticalLine.Y1 = 0;
-        _verticalLine.Y2 = ActualHeight;
-        
+
         Children.Add(_newAnnotationRect);
         Children.Add(_horizontalLine);
         Children.Add(_verticalLine);
         Children.Add(_classNameHint);
+
+        Loaded += Init;
+    }
+
+    private void Init(object sender, RoutedEventArgs e)
+    {
+        _horizontalLine.X1 = 0;
+        _horizontalLine.X2 = ActualWidth;
+        _verticalLine.Y1 = 0;
+        _verticalLine.Y2 = ActualHeight;
     }
 
     private void CanvasMouseDown(object sender, MouseButtonEventArgs e)
@@ -125,22 +141,22 @@ public class CanvasEditor : Canvas
         
         if (e.LeftButton != MouseButtonState.Pressed)
             return;
-        if (FormState.SelectionState == SelectionState.NewAnnCreating)
+        if (SelectionState == SelectionState.NewAnnCreating)
             NewAnnotationCreatingMove(sender, e);
         
-        if (FormState.SelectionState == SelectionState.AnnResizing) 
+        if (SelectionState == SelectionState.AnnResizing)
             AnnotationResizeMove(sender, e);
 
-        if (FormState.SelectionState == SelectionState.AnnMoving)
+        if (SelectionState == SelectionState.AnnMoving)
             AnnotationPositionMove(sender, e);
     }
 
     private void CanvasMouseUp(object sender, MouseButtonEventArgs e)
     {
-        if (FormState.SelectionState == SelectionState.NewAnnCreating) 
+        if (SelectionState == SelectionState.NewAnnCreating)
             CreateAnnotation(e.GetPosition(this));
         
-        FormState.SelectionState = SelectionState.None;
+        SelectionState = SelectionState.None;
         e.Handled = true;
     }
     
@@ -154,7 +170,7 @@ public class CanvasEditor : Canvas
     
     private void AnnotationResizeStart(object sender, MouseEventArgs e)
     {
-        FormState.SelectionState = SelectionState.AnnResizing;
+        SelectionState = SelectionState.AnnResizing;
         _lastPos = e.GetPosition(this);
         _curRec = (Rectangle)sender;
         _curAnn = (AnnotationControl)((Grid)_curRec.Parent).Parent;
@@ -163,7 +179,7 @@ public class CanvasEditor : Canvas
     
     private void AnnotationResizeMove(object sender, MouseEventArgs e)
     {
-        if (FormState.SelectionState != SelectionState.AnnResizing) 
+        if (SelectionState != SelectionState.AnnResizing)
             return;
         
         var currentPos = e.GetPosition(this);
@@ -224,13 +240,13 @@ public class CanvasEditor : Canvas
 
         _curAnn.IsSelected = true;
         
-        FormState.SelectionState = SelectionState.AnnMoving;
+        SelectionState = SelectionState.AnnMoving;
         e.Handled = true;
     }
     
     private void AnnotationPositionMove(object sender, MouseEventArgs e)
     {
-        if (FormState.SelectionState != SelectionState.AnnMoving)
+        if (SelectionState != SelectionState.AnnMoving)
             return;
         
         var currentPos = e.GetPosition(this);
@@ -255,12 +271,12 @@ public class CanvasEditor : Canvas
         SetTop(_newAnnotationRect, _newAnnotationStartPos.Y);
         _newAnnotationRect.MouseMove += NewAnnotationCreatingMove;
         
-        FormState.SelectionState = SelectionState.NewAnnCreating;
+        SelectionState = SelectionState.NewAnnCreating;
     }
     
     private void NewAnnotationCreatingMove(object sender, MouseEventArgs e)
     {
-        if (FormState.SelectionState != SelectionState.NewAnnCreating)
+        if (SelectionState != SelectionState.NewAnnCreating)
             return;
         
         var currentPos = e.GetPosition(this);
@@ -284,8 +300,7 @@ public class CanvasEditor : Canvas
         if (width < MIN_SIZE || height < MIN_SIZE)
             return;
 
-        var mainWindow = (MainWindow)((Window)((Grid)Parent).Parent).Owner;
-        var time = TimeSpan.FromMilliseconds(mainWindow.VideoView.MediaPlayer.Time);
+        var time = GetTimeFunc();
         CreateAnnotation(CurrentAnnClass, time, new CanvasLabel
         {
             Width = width,