/// <summary>
/// Converts a point from screen to client coordinates.
/// </summary>
/// <param name="visual">The visual.</param>
/// <param name="point">The point in screen coordinates.</param>
/// <returns>The point in client coordinates.</returns>
public static Point PointToClient(this IVisual visual, PixelPoint point)
{
var(root, offset) = GetRootAndPosition(visual);
var screenOffset = PixelPoint.FromPoint((Point)offset, root.RenderScaling);
var screenPoint = new PixelPoint(point.X - screenOffset.X, point.Y - screenOffset.Y);
return(root.PointToClient(screenPoint));
}
/// <summary>
/// Converts a <see cref="Rect"/> to device pixels using the specified scaling factor.
/// </summary>
/// <param name="rect">The rect.</param>
/// <param name="scale">The scaling factor.</param>
/// <returns>The device-independent point.</returns>
public static PixelRect FromRect(Rect rect, Vector scale) => new PixelRect(
PixelPoint.FromPoint(rect.Position, scale),
PixelSize.FromSize(rect.Size, scale));
/// <summary>
/// Converts a <see cref="Rect"/> to device pixels using the specified scaling factor.
/// </summary>
/// <param name="rect">The rect.</param>
/// <param name="scale">The scaling factor.</param>
/// <returns>The device-independent point.</returns>
public static PixelRect FromRect(Rect rect, Vector scale) => new PixelRect(
PixelPoint.FromPoint(rect.Position, scale),
FromPointCeiling(rect.BottomRight, scale));
