/// <summary>
/// Initializes the scroll axis.
/// </summary>
/// <param name="scrollAxis">The scroll axis.</param>
public void InitializeScrollAxis(ScrollAxisBase scrollAxis)
{
var pixelScrollAxis = scrollAxis as PixelScrollAxis;
if (lineNested.Count > 0 && pixelScrollAxis == null)
{
throw new InvalidOperationException("When you have nested line collections you need to use PixelScrolling!");
}
//scrollAxis.distances.Clear();
scrollAxis.DefaultLineSize = DefaultLineSize;
scrollAxis.LineCount = LineCount;
foreach (RangeValuePair <double> entry in lineSizes)
{
if (entry.Value != -2)
{
scrollAxis.SetLineSize(entry.Start, entry.End, entry.Value < 0 ? DefaultLineSize : entry.Value);
}
}
foreach (KeyValuePair <int, LineSizeCollection> entry in lineNested)
{
pixelScrollAxis.SetNestedLines(entry.Key, entry.Value.Distances);
}
foreach (RangeValuePair <bool> entry in lineHidden)
{
scrollAxis.SetLineHiddenState(entry.Start, entry.End, entry.Value);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="PixelScrollAxis"/> class which
/// is nested as a single line in a parent scroll axis.
/// </summary>
/// <param name="parentScrollAxis">The parent scroll axis.</param>
/// <param name="sb">The scrollbar state.</param>
/// <param name="scrollLinesHost">The scroll lines host.</param>
/// <param name="distancesHost">The distances host.</param>
public PixelScrollAxis(ScrollAxisBase parentScrollAxis, IScrollBar sb, ILineSizeHost scrollLinesHost, IDistancesHost distancesHost)
: base(sb, scrollLinesHost)
{
// GridCellGridRenderer passes in Distances. LineSizeCollection holds them.
// This allows faster construction of grids when they were scrolled out of view
// and unloaded.
this.parentScrollAxis = parentScrollAxis;
this.distancesHost = distancesHost;
if (Distances == null)
{
throw new ArgumentNullException("Distances");
}
}
