/// <summary>
/// Core element creation.
/// </summary>
/// <param name="index"></param>
/// <param name="valuex"></param>
/// <param name="valuey"></param>
/// <param name="item"></param>
/// <param name="recycler"></param>
/// <param name="evs"></param>
/// <returns></returns>
ItemState <Path> ElementPipeline(int index, double valuex, double valuey, object item, Recycler <Path, ItemState <Path> > recycler, Evaluators evs)
{
var mappedy = ValueAxis.For(valuey);
var mappedx = CategoryAxis.For(valuex);
var markerx = mappedx + MarkerOffset;
_trace.Verbose($"[{index}] {valuey} ({markerx},{mappedy})");
var mk = MarkerTemplate.LoadContent() as Geometry;
// TODO allow MK to be other things like (Path or Image).
// TODO allow a MarkerTemplateSelector and a value Selector/Formatter
// no path yet
var el = recycler.Next(null);
if (el == null)
{
return(null);
}
var shim = new GeometryWithOffsetShim <Geometry>()
{
PathData = mk
};
el.Item2.DataContext = shim;
BindTo(shim, nameof(shim.Offset), el.Item2, Canvas.LeftProperty);
var cs = evs.LabelFor(item);
if (cs == null)
{
return(new ItemState_Matrix <Path>(index, mappedx, MarkerOffset, mappedy, el.Item2));
}
else
{
return(new ItemStateCustom_Matrix <Path>(index, mappedx, MarkerOffset, mappedy, cs, el.Item2));
}
}
/// <summary>
/// Core element creation.
/// </summary>
/// <param name="index"></param>
/// <param name="valuex"></param>
/// <param name="valuey"></param>
/// <param name="item"></param>
/// <param name="recycler"></param>
/// <param name="evs"></param>
/// <returns></returns>
ItemState <Image> ElementPipeline(int index, double valuex, double valuey, object item, Recycler <Image, ItemState <Image> > recycler, Evaluators evs)
{
var mappedy = ValueAxis.For(valuey);
var mappedx = CategoryAxis.For(valuex);
var markerx = mappedx + MarkerOffset;
_trace.Verbose($"[{index}] {valuey} ({markerx},{mappedy})");
// TODO allow a MarkerTemplateSelector and a value Selector/Formatter
// no path yet
var el = recycler.Next(null);
if (el == null)
{
return(null);
}
var cs = evs.LabelFor(item);
if (cs == null)
{
return(new ItemState_Matrix <Image>(index, mappedx, MarkerOffset, mappedy, el.Item2));
}
else
{
return(new ItemStateCustom_Matrix <Image>(index, mappedx, MarkerOffset, mappedy, cs, el.Item2));
}
}
/// <summary>
/// Prepare the item state, but no <see cref="Geometry"/>.
/// </summary>
/// <param name="index"></param>
/// <param name="valuex"></param>
/// <param name="valuey"></param>
/// <param name="item"></param>
/// <param name="evs"></param>
/// <returns></returns>
ItemState <Path> ElementPipeline(int index, double valuex, double valuey, object item, Evaluators evs)
{
var mappedy = ValueAxis.For(valuey);
var mappedx = CategoryAxis.For(valuex);
var linex = mappedx + CategoryAxisOffset;
_trace.Verbose($"{Name}[{index}] v:({valuex},{valuey}) m:({linex},{mappedy})");
var cs = evs.LabelFor(item);
if (cs == null)
{
return(new ItemState <Path>(index, mappedx, CategoryAxisOffset, mappedy, Segments));
}
else
{
return(new ItemStateCustom <Path>(index, mappedx, CategoryAxisOffset, mappedy, cs, Segments));
}
}
