/// <summary>
/// Moves the annotation to a specific horizontal and vertical offset
/// </summary>
/// <param name="coordinates">The initial coordinates.</param>
/// <param name="horizOffset">The horizontal offset.</param>
/// <param name="vertOffset">The vertical offset.</param>
protected override void MoveAnnotationTo(AnnotationCoordinates coordinates, double horizOffset,
double vertOffset)
{
var pointsCoords = _startDragAnnotationsMousePoints;
for (int i = 0; i < pointsCoords.Length; i++)
{
var point = pointsCoords[i];
point.X += horizOffset;
point.Y += vertOffset;
MoveBasePointTo(point, i, XAxis, YAxis);
}
OnAnnotationDragging(new AnnotationDragDeltaEventArgs(horizOffset, vertOffset));
}
/// <summary>
/// This method is used in internally by the <see cref="AnnotationResizeAdorner" />. Gets the adorner point positions
/// </summary>
/// <param name="coordinates">The previously calculated <see cref="AnnotationCoordinates"/> in screen pixels.</param>
/// <returns>A list of points in screen pixels denoting the Adorner corners</returns>
protected override Point[] GetBasePoints(AnnotationCoordinates coordinates)
{
var lineAnnotations = Annotations;
var count = lineAnnotations.Count();
var points = new Point[count];
for (int i = 0; i < count; i++)
{
var annotation = lineAnnotations[i];
var xCoord = XAxis.GetCoordinate(annotation.X1);
var yCoord = YAxis.GetCoordinate(annotation.Y1);
points[i] = new Point(xCoord, yCoord);
}
return(points);
}
