/// <summary>
/// Moves the cross to the next plot item. If no plot item is found in this layer, it moves the cross to the next layer.
/// </summary>
/// <param name="increment"></param>
private void MoveUpDown(double increment)
{
_positionOfCrossInRootLayerCoordinates = _positionOfCrossInRootLayerCoordinates.WithYPlus(increment);
DisplayCrossCoordinates();
_grac.RenderOverlay(); // no refresh necessary, only invalidate to show the cross
}
public MeasuredLabelItem(Graphics g, FontX font, StringFormat strfmt, string itemtext, double lineSpacing, StringAlignment horizontalAlignment, StringAlignment verticalAlignment, StringAlignment textBlockAligment)
{
_text = itemtext.Split(new char[] { '\r', '\n' }, StringSplitOptions.RemoveEmptyEntries);
_stringSize = new PointD2D[_text.Length];
_font = font;
_horizontalAlignment = horizontalAlignment;
_verticalAlignment = verticalAlignment;
_textBlockAligment = textBlockAligment;
_strfmt = strfmt;
_lineSpacing = lineSpacing;
_size = SizeF.Empty;
var bounds = RectangleD2D.Empty;
var position = new PointD2D();
for (int i = 0; i < _text.Length; ++i)
{
_stringSize[i] = g.MeasureString(_text[i], GdiFontManager.ToGdi(_font), new PointF(0, 0), strfmt);
bounds.ExpandToInclude(new RectangleD2D(position, _stringSize[i]));
position = position.WithYPlus(_stringSize[i].Y * _lineSpacing);
}
_size = bounds.Size;
}