// throws ArgumentException if pointerPoint.pointerId is already in live rendering mode
public void EnterLiveRendering(Windows.UI.Input.PointerPoint pointerPoint, Windows.UI.Input.Inking.InkDrawingAttributes drawingAttributes)
{
uint pointerId = pointerPoint.PointerId;
// Create and initialize the data structures necessary to render a polyline in XAML.
var stroke = new Windows.UI.Xaml.Media.PolyLineSegment();
stroke.Points.Add(pointerPoint.Position);
var figure = new Windows.UI.Xaml.Media.PathFigure();
figure.StartPoint = pointerPoint.Position;
figure.Segments.Add(stroke);
var geometry = new Windows.UI.Xaml.Media.PathGeometry();
geometry.Figures.Add(figure);
var path = new Windows.UI.Xaml.Shapes.Path();
path.Data = geometry;
// Set the stroke's graphical properties, which are controlled by the Path object
path.Stroke = new Windows.UI.Xaml.Media.SolidColorBrush(drawingAttributes.Color);
path.StrokeThickness = drawingAttributes.Size.Width;
path.StrokeLineJoin = Windows.UI.Xaml.Media.PenLineJoin.Round;
path.StrokeStartLineCap = Windows.UI.Xaml.Media.PenLineCap.Round;
// Update dictionaries
liveStrokes.Add(pointerId, stroke); // throws ArgumentException if pointerId is already in the dictionary
livePaths.Add(pointerId, path); // throws ArgumentException if pointerId is already in the dictionary
// Add path to render so that it is rendered (on top of all the elements with same ZIndex).
// We want the live render to be on top of the Bezier render, so we set the ZIndex of the elements of the
// live render to 2 and that of the elements of the Bezier render to 1.
render.Children.Add(path);
Windows.UI.Xaml.Controls.Canvas.SetZIndex(path, 2);
}
// throws ArgumentException if pointerPoint.pointerId is already in live rendering mode
public void EnterLiveRendering(Windows.UI.Input.PointerPoint pointerPoint, Windows.UI.Input.Inking.InkDrawingAttributes drawingAttributes)
{
uint pointerId = pointerPoint.PointerId;
// Create and initialize the data structures necessary to render a polyline in XAML.
var stroke = new Windows.UI.Xaml.Media.PolyLineSegment();
stroke.Points.Add(pointerPoint.Position);
var figure = new Windows.UI.Xaml.Media.PathFigure();
figure.StartPoint = pointerPoint.Position;
figure.Segments.Add(stroke);
var geometry = new Windows.UI.Xaml.Media.PathGeometry();
geometry.Figures.Add(figure);
var path = new Windows.UI.Xaml.Shapes.Path();
path.Data = geometry;
// Set the stroke's graphical properties, which are controlled by the Path object
path.Stroke = new Windows.UI.Xaml.Media.SolidColorBrush(drawingAttributes.Color);
path.StrokeThickness = drawingAttributes.Size.Width;
path.StrokeLineJoin = Windows.UI.Xaml.Media.PenLineJoin.Round;
path.StrokeStartLineCap = Windows.UI.Xaml.Media.PenLineCap.Round;
// Update dictionaries
liveStrokes.Add(pointerId, stroke); // throws ArgumentException if pointerId is already in the dictionary
livePaths.Add(pointerId, path); // throws ArgumentException if pointerId is already in the dictionary
// Add path to render so that it is rendered (on top of all the elements with same ZIndex).
// We want the live render to be on top of the Bezier render, so we set the ZIndex of the elements of the
// live render to 2 and that of the elements of the Bezier render to 1.
render.Children.Add(path);
Windows.UI.Xaml.Controls.Canvas.SetZIndex(path, 2);
}
