/// <summary>
/// Bookkeeping for unregistering IDataSourceRenderer.
/// </summary>
/// <param name="idsr">Instance to unregister.</param>
protected void Unregister(IDataSourceRenderer idsr)
{
var source = DataSources.Cast <DataSource>().SingleOrDefault <DataSource>((dds) => dds.Name == idsr.DataSourceName);
if (source != null)
{
source.Unregister(idsr);
}
}
/// <summary>
/// Determine what kind of render is required, and run it.
/// If anything is dirty, full layout, else adjust transforms.
/// Once all components are "clean" only the visual transforms are updated; no data traversal is done.
/// </summary>
/// <param name="ls">The current layout state.</param>
protected void RenderComponents(LayoutState ls)
{
_trace.Verbose($"render-components {ls.Dimensions.Width}x{ls.Dimensions.Height}");
if (ls.Dimensions.Width == 0 || ls.Dimensions.Height == 0)
{
return;
}
if (DataSources.Cast <DataSource>().Any((ds) => ds.IsDirty))
{
FullLayout(ls);
}
else
{
TransformsLayout(ls);
}
}
