/// <summary>
/// Snaps a stroke thickness to device pixels if required by the edge rendering mode.
/// </summary>
/// <param name="strokeThickness">The stroke thickness.</param>
/// <param name="edgeRenderingMode">The edge rendering mode.</param>
/// <returns>The processed stroke thickness.</returns>
private double GetActualStrokeThickness(double strokeThickness, EdgeRenderingMode edgeRenderingMode)
{
switch (edgeRenderingMode)
{
case EdgeRenderingMode.PreferSharpness:
return(PixelLayout.SnapStrokeThickness(strokeThickness, this.DpiScale));
default:
return(strokeThickness);
}
}
/// <summary>
/// Snaps a rectangle to device pixels if required by the edge rendering mode.
/// </summary>
/// <param name="rect">The rectangle.</param>
/// <param name="strokeThickness">The stroke thickness.</param>
/// <param name="edgeRenderingMode">The edge rendering mode.</param>
/// <returns>The processed rectangle.</returns>
private Rect GetActualRect(OxyRect rect, double strokeThickness, EdgeRenderingMode edgeRenderingMode)
{
switch (edgeRenderingMode)
{
case EdgeRenderingMode.PreferGeometricAccuracy:
case EdgeRenderingMode.PreferSpeed:
return(ToRect(rect));
default:
return(PixelLayout.Snap(ToRect(rect), strokeThickness, this.VisualOffset, this.DpiScale));
}
}
/// <summary>
/// Snaps points to pixels if required by the edge rendering mode.
/// </summary>
/// <param name="points">The points.</param>
/// <param name="strokeThickness">The stroke thickness.</param>
/// <param name="edgeRenderingMode">The edge rendering mode.</param>
/// <returns>The processed points.</returns>
private IEnumerable <Point> GetActualPoints(IList <ScreenPoint> points, double strokeThickness, EdgeRenderingMode edgeRenderingMode)
{
switch (edgeRenderingMode)
{
case EdgeRenderingMode.Adaptive when RenderContextBase.IsStraightLine(points):
case EdgeRenderingMode.Automatic when RenderContextBase.IsStraightLine(points):
case EdgeRenderingMode.PreferSharpness:
return(points.Select(p => PixelLayout.Snap(p.X, p.Y, strokeThickness, this.VisualOffset, this.DpiScale)));
default:
return(points.Select(p => new Point(p.X, p.Y)));
}
}
