private static void AddTextToCanvas(InkAnalysisRoot analysisRoot, Canvas drawingSurface)
{
//var rect = analysisRoot.BoundingRect;
//Rectangle r = new Rectangle();
//r.IsHitTestVisible = false;
//r.SetValue(Canvas.LeftProperty, rect.Left);
//r.SetValue(Canvas.TopProperty, rect.Top);
//r.SetValue(Canvas.WidthProperty, rect.Width);
//r.SetValue(Canvas.HeightProperty, rect.Height);
//r.Stroke = new SolidColorBrush(canvas.InkPresenter.CopyDefaultDrawingAttributes().Color);
//r.StrokeThickness = 1;
//drawingSurface.Children.Add(r);
//double rotationAngle = Math.Atan2(points[2].Y - points[0].Y, points[2].X - points[0].X);
//double rotationAngle = Math.Atan2(analysisRoot.BoundingRect.Height, analysisRoot.BoundingRect.Width);
//rotationAngle = -(rotationAngle * 180.0 / Math.PI);
var attributes = canvas.InkPresenter.CopyDefaultDrawingAttributes();
var container = new Viewbox();
container.RenderTransformOrigin = new Point(0.5, 0.5);
container.IsHitTestVisible = false;
container.SetValue(Canvas.LeftProperty, analysisRoot.BoundingRect.Left);
container.SetValue(Canvas.TopProperty, analysisRoot.BoundingRect.Top + analysisRoot.BoundingRect.Height);
container.Width = analysisRoot.BoundingRect.Width;
container.Height = analysisRoot.BoundingRect.Height;
//container.RenderTransform = new RotateTransform() { Angle = rotationAngle };
container.Child = new Border()
{
Child = new TextBlock()
{
Text = analysisRoot.RecognizedText,
IsHitTestVisible = false,
Foreground = new SolidColorBrush(attributes.Color)
}
};
drawingSurface.Children.Add(container);
if (RecognitionOccured != null)
{
RecognitionOccured(null, new RecognitionEventArgs(container)
{
Description = $"Text '{analysisRoot.RecognizedText}'"
});
}
}
private static void ConvertShapes(InkPresenter presenter, InkAnalysisRoot analysisRoot)
{
var drawingSurface = GetTargetCanvas(canvas);
if (drawingSurface == null)
{
return;
}
IReadOnlyList <IInkAnalysisNode> nodes = inkAnalyzer.AnalysisRoot.FindNodes(InkAnalysisNodeKind.WritingRegion);
foreach (var item in nodes)
{
AddTextToCanvas(analysisRoot, drawingSurface);
}
IReadOnlyList <IInkAnalysisNode> drawings = inkAnalyzer.AnalysisRoot.FindNodes(InkAnalysisNodeKind.InkDrawing);
if (drawings.Any())
{
ICommand cmd = null;
foreach (IInkAnalysisNode drawing in drawings)
{
var shape = (InkAnalysisInkDrawing)drawing;
if (shape.DrawingKind == InkAnalysisDrawingKind.Drawing)
{
// Omit unsupported shape
continue;
}
switch (shape.DrawingKind)
{
case InkAnalysisDrawingKind.Circle:
{
cmd = GetCircle(canvas);
AddEllipseToCanvas(shape, drawingSurface);
break;
}
case InkAnalysisDrawingKind.Ellipse:
{
AddEllipseToCanvas(shape, drawingSurface);
break;
}
case InkAnalysisDrawingKind.Triangle:
{
AddPolygonToCanvas(shape, drawingSurface);
break;
}
case InkAnalysisDrawingKind.IsoscelesTriangle:
{
AddPolygonToCanvas(shape, drawingSurface);
break;
}
case InkAnalysisDrawingKind.EquilateralTriangle:
{
AddPolygonToCanvas(shape, drawingSurface);
break;
}
case InkAnalysisDrawingKind.RightTriangle:
{
AddPolygonToCanvas(shape, drawingSurface);
break;
}
case InkAnalysisDrawingKind.Quadrilateral:
{
AddPolygonToCanvas(shape, drawingSurface);
break;
}
case InkAnalysisDrawingKind.Rectangle:
{
AddPolygonToCanvas(shape, drawingSurface);
break;
}
case InkAnalysisDrawingKind.Square:
{
cmd = GetSquare(canvas);
AddPolygonToCanvas(shape, drawingSurface);
break;
}
case InkAnalysisDrawingKind.Diamond:
{
AddPolygonToCanvas(shape, drawingSurface);
break;
}
case InkAnalysisDrawingKind.Trapezoid:
{
AddPolygonToCanvas(shape, drawingSurface);
break;
}
case InkAnalysisDrawingKind.Parallelogram:
{
AddPolygonToCanvas(shape, drawingSurface);
break;
}
case InkAnalysisDrawingKind.Pentagon:
{
AddPolygonToCanvas(shape, drawingSurface);
break;
}
case InkAnalysisDrawingKind.Hexagon:
{
AddPolygonToCanvas(shape, drawingSurface);
break;
}
}
// Select the strokes that were recognized, so we can delete them.
// The effect is that the shape added to the canvas replaces the strokes.
foreach (var strokeId in shape.GetStrokeIds())
{
InkStroke stroke = presenter.StrokeContainer.GetStrokeById(strokeId);
stroke.Selected = true;
}
cmd?.Execute(null);
}
}
// presenter.StrokeContainer.DeleteSelected();
presenter.StrokeContainer.Clear();
}
