void RenderStroke(InkStroke inkStroke)
{
Brush brush = new SolidColorBrush(inkStroke.DrawingAttributes.Color);
IReadOnlyList <InkStrokeRenderingSegment> inkSegments = inkStroke.GetRenderingSegments();
for (int i = 1; i < inkSegments.Count; i++)
{
InkStrokeRenderingSegment inkSegment = inkSegments[i];
BezierSegment bezierSegment = new BezierSegment
{
Point1 = inkSegment.BezierControlPoint1,
Point2 = inkSegment.BezierControlPoint2,
Point3 = inkSegment.Position
};
PathFigure pathFigure = new PathFigure
{
StartPoint = inkSegments[i - 1].Position,
IsClosed = false,
IsFilled = false
};
pathFigure.Segments.Add(bezierSegment);
PathGeometry pathGeometry = new PathGeometry();
pathGeometry.Figures.Add(pathFigure);
Path path = new Path
{
Stroke = brush,
StrokeThickness = inkStroke.DrawingAttributes.Size.Width,// * inkSegment.Pressure,
StrokeStartLineCap = PenLineCap.Round,
StrokeEndLineCap = PenLineCap.Round,
Data = pathGeometry
};
StrokeGrid.Children.Add(path);
}
}
/// <summary>
/// A private helper method used to produce BezierPaths from InkStorkes
/// </summary>
/// <param name="stroke">The InkStroke used to render the permanent ink</param>
/// <param name="drawAttr">The InkDrawingAttributes used to render the permanent ink</param>
/// <returns>A new Path built from BezierSegments</returns>
private Path ProduceBezierPath(InkStroke stroke, InkDrawingAttributes drawAttr)
{
//Create a new PathFeagure instance
PathFigure figure = new PathFigure();
//Get all of the InkStroke's rendering segments
IReadOnlyList <InkStrokeRenderingSegment> curveSegments = stroke.GetRenderingSegments();
//Check if we have any segments to work with
if (curveSegments.Count > 0)
{
//Use the first segment to set the figure's start position
figure.StartPoint = curveSegments[0].Position;
}
//Iterate over the segment collection, beginning from the 2nd element
for (int i = 1; i < curveSegments.Count; ++i)
{
//Get an InkStrokeRenderingSegemnt instance from the collection
InkStrokeRenderingSegment pathSegment = curveSegments[i];
//Create a new BezierSegment instance
BezierSegment segment = new BezierSegment();
//Set the segment's control points
segment.Point1 = pathSegment.BezierControlPoint1;
segment.Point2 = pathSegment.BezierControlPoint2;
//Set the segment's position
segment.Point3 = pathSegment.Position;
//Add the new segment to the figure
figure.Segments.Add(segment);
}
//Create a new Path instance
Path path = new Path();
//Populate the path's data with a new PathGeometry instancce
path.Data = new PathGeometry();
//Add the figure instance to the new PathGeometry
(path.Data as PathGeometry).Figures.Add(figure);
//Set the path's stroke color to the drawAttr's color
path.Stroke = new SolidColorBrush(drawAttr.Color);
//Set the path's stroke thickness to the drawAttr's Width
path.StrokeThickness = drawAttr.Size.Width;
//Set the path's stroke line join to best fit the drawAttr's pen tip
path.StrokeLineJoin = drawAttr.PenTip == PenTipShape.Circle ? Windows.UI.Xaml.Media.PenLineJoin.Round
: Windows.UI.Xaml.Media.PenLineJoin.Miter;
//Set the path's stroke line cap to best fit the drawAttr's pen tip
path.StrokeStartLineCap = drawAttr.PenTip == PenTipShape.Circle ? Windows.UI.Xaml.Media.PenLineCap.Round
: Windows.UI.Xaml.Media.PenLineCap.Square;
//Return the new path
return(path);
}
void RenderStroke(InkStroke inkStroke)
{
Brush brush = new SolidColorBrush(inkStroke.DrawingAttributes.Color);
IReadOnlyList <InkStrokeRenderingSegment> inkSegments = inkStroke.GetRenderingSegments();
for (int i = 1; i < inkSegments.Count; i++)
{
InkStrokeRenderingSegment inkSegment = inkSegments[i];
BezierSegment bezierSegment = new BezierSegment
{
Point1 = inkSegment.BezierControlPoint1,
Point2 = inkSegment.BezierControlPoint2,
Point3 = inkSegment.Position
};
PathFigure pathFigure = new PathFigure
{
StartPoint = inkSegments[i - 1].Position,
IsClosed = false,
IsFilled = false
};
pathFigure.Segments.Add(bezierSegment);
PathGeometry pathGeometry = new PathGeometry();
pathGeometry.Figures.Add(pathFigure);
Path path = new Path
{
Stroke = brush,
StrokeThickness = inkStroke.DrawingAttributes.Size.Width,// * inkSegment.Pressure,
StrokeStartLineCap = PenLineCap.Round,
StrokeEndLineCap = PenLineCap.Round,
Data = pathGeometry
};
StrokeGrid.Children.Add(path);
#if DEBUG
Ellipse el = new Ellipse()
{
Width = 10,
Height = 10,
Fill = new SolidColorBrush(Color.FromArgb(200, 0, 0, 0)),
IsHitTestVisible = false
};
Canvas.SetLeft(el, inkSegment.Position.X - 5);
Canvas.SetTop(el, inkSegment.Position.Y - 5);
//TestCanvas.Children.Add(el);
#endif
}
}
static void RenderBeziers(Panel panel, InkStroke inkStroke, Color color, double penSize)
{
Brush brush = new SolidColorBrush(color);
IReadOnlyList <InkStrokeRenderingSegment> inkSegments = inkStroke.GetRenderingSegments();
for (int i = 1; i < inkSegments.Count; i++)
{
InkStrokeRenderingSegment inkSegment = inkSegments[i];
BezierSegment bezierSegment = new BezierSegment
{
Point1 = inkSegment.BezierControlPoint1,
Point2 = inkSegment.BezierControlPoint2,
Point3 = inkSegment.Position
};
PathFigure pathFigure = new PathFigure
{
StartPoint = inkSegments[i - 1].Position,
IsClosed = false,
IsFilled = false
};
pathFigure.Segments.Add(bezierSegment);
PathGeometry pathGeometry = new PathGeometry();
pathGeometry.Figures.Add(pathFigure);
Path path = new Path
{
Stroke = brush,
StrokeThickness = penSize * inkSegment.Pressure,
StrokeStartLineCap = PenLineCap.Round,
StrokeEndLineCap = PenLineCap.Round,
Data = pathGeometry
};
panel.Children.Add(path);
}
}
protected override void OnPointerReleased(PointerRoutedEventArgs args)
{
if (args.Pointer.PointerDeviceType != PointerDeviceType.Pen && hasPen)
{
return;
}
inkManager.ProcessPointerUp(args.GetCurrentPoint(this));
// Render the most recent InkStroke
IReadOnlyList <InkStroke> inkStrokes = inkManager.GetStrokes();
InkStroke inkStroke = inkStrokes[inkStrokes.Count - 1];
// Create SolidColorBrush used for all segments in the stroke
Brush brush = new SolidColorBrush(inkStroke.DrawingAttributes.Color);
// Get the segments
IReadOnlyList <InkStrokeRenderingSegment> inkSegments = inkStroke.GetRenderingSegments();
// Notice loop starts at 1
for (int i = 1; i < inkSegments.Count; i++)
{
InkStrokeRenderingSegment inkSegment = inkSegments[i];
// Create a BezierSegment from the points
BezierSegment bezierSegment = new BezierSegment
{
Point1 = inkSegment.BezierControlPoint1,
Point2 = inkSegment.BezierControlPoint2,
Point3 = inkSegment.Position
};
// Create a PathFigure that begins at the preceding Position
PathFigure pathFigure = new PathFigure
{
StartPoint = inkSegments[i - 1].Position,
IsClosed = false,
IsFilled = false
};
pathFigure.Segments.Add(bezierSegment);
// Create a PathGeometry with that PathFigure
PathGeometry pathGeometry = new PathGeometry();
pathGeometry.Figures.Add(pathFigure);
// Create a Path with that PathGeometry
Path path = new Path
{
Stroke = brush,
StrokeThickness = inkStroke.DrawingAttributes.Size.Width *
inkSegment.Pressure,
StrokeStartLineCap = PenLineCap.Round,
StrokeEndLineCap = PenLineCap.Round,
Data = pathGeometry
};
// Add it to the Grid
contentGrid.Children.Add(path);
}
base.OnPointerReleased(args);
}
