/// <summary>
/// Initialize after entering VT.
/// </summary>
/// <param name="icelc"></param>
void IRequireEnterLeave.Enter(IChartEnterLeaveContext icelc)
{
EnsureAxes(icelc as IChartComponentContext);
EnsureValuePath(icelc as IChartComponentContext);
Layer = icelc.CreateLayer();
_trace.Verbose($"{Name} enter v:{ValueAxisName} {ValueAxis} c:{CategoryAxisName} {CategoryAxis} d:{DataSourceName}");
if (PathTemplate == null)
{
if (Theme?.PathTemplate == null)
{
if (icelc is IChartErrorInfo icei)
{
icei.Report(new ChartValidationResult(NameOrType(), $"No {nameof(PathTemplate)} and {nameof(Theme.PathTemplate)} was not found", new[] { nameof(PathTemplate), nameof(Theme.PathTemplate) }));
}
}
}
AssignFromRef(icelc as IChartErrorInfo, NameOrType(), nameof(PathStyle), nameof(Theme.PathColumnSeries),
PathStyle == null, Theme != null, Theme.PathColumnSeries != null,
() => PathStyle = Theme.PathColumnSeries
);
BindPaths = new Evaluators(CategoryPath, ValuePath, ValueLabelPath);
if (!BindPaths.IsValid)
{
if (icelc is IChartErrorInfo icei)
{
icei.Report(new ChartValidationResult(NameOrType(), $"ValuePath: must be specified", new[] { nameof(ValuePath) }));
}
}
}
/// <summary>
/// Undo effects of Enter().
/// </summary>
/// <param name="icelc"></param>
void IRequireEnterLeave.Leave(IChartEnterLeaveContext icelc)
{
_trace.Verbose($"{Name} leave");
BindPaths = null;
ValueAxis = null;
CategoryAxis = null;
icelc.DeleteLayer(Layer);
Layer = null;
}
/// <summary>
/// Ctor.
/// </summary>
/// <param name="state">Starting state; SHOULD be empty.</param>
/// <param name="rc">The recycler.</param>
/// <param name="evs">Evaluators.</param>
internal RenderState_ValueAndLabel(List <SIS> state, Recycler <EL, SIS> rc, Evaluators evs) : base(state, rc)
{
#pragma warning disable IDE0016 // Use 'throw' expression
if (evs == null)
{
throw new ArgumentNullException(nameof(evs));
}
if (evs.by == null)
{
throw new ArgumentNullException(nameof(evs.by));
}
#pragma warning restore IDE0016 // Use 'throw' expression
this.evs = evs;
}
/// <summary>
/// Initialize after entering VT.
/// </summary>
/// <param name="icelc"></param>
void IRequireEnterLeave.Enter(IChartEnterLeaveContext icelc)
{
EnsureAxes(icelc as IChartComponentContext);
EnsureValuePath(icelc as IChartComponentContext);
Layer = icelc.CreateLayer(Segments);
_trace.Verbose($"enter v:{ValueAxisName}:{ValueAxis} c:{CategoryAxisName}:{CategoryAxis} d:{DataSourceName}");
AssignFromRef(icelc as IChartErrorInfo, NameOrType(), nameof(PathStyle), nameof(Theme.PathLineSeries),
PathStyle == null, Theme != null, Theme.PathLineSeries != null,
() => PathStyle = Theme.PathLineSeries
);
BindTo(this, nameof(PathStyle), Segments, FrameworkElement.StyleProperty);
BindPaths = new Evaluators(CategoryPath, ValuePath, ValueLabelPath);
if (!BindPaths.IsValid)
{
// report
}
}
void IRequireEnterLeave.Enter(IChartEnterLeaveContext icelc)
{
EnsureAxes(icelc as IChartComponentContext);
Layer = icelc.CreateLayer();
_trace.Verbose($"{Name} enter v:{ValueAxisName} {ValueAxis} c:{CategoryAxisName} {CategoryAxis} d:{DataSourceName}");
BindPaths = new Evaluators(CategoryPath, ValueLabelPath, ColumnStack.Select(cs => cs.ValuePath));
if (!BindPaths.IsValid)
{
for (int ix = 0; ix < ColumnStack.Count; ix++)
{
if (String.IsNullOrEmpty(ColumnStack[ix].ValuePath))
{
if (icelc is IChartErrorInfo icei)
{
icei.Report(new ChartValidationResult(NameOrType(), $"ValuePath[{ix}] was not set, NO values are generated", new[] { $"ValuePath[{ix}]" }));
}
}
}
}
}
/// <summary>
/// Initialize after entering VT.
/// </summary>
/// <param name="icelc"></param>
public void Enter(IChartEnterLeaveContext icelc)
{
EnsureAxes(icelc as IChartComponentContext);
Layer = icelc.CreateLayer();
_trace.Verbose($"enter v:{ValueAxisName}:{ValueAxis} c:{CategoryAxisName}:{CategoryAxis} d:{DataSourceName}");
AssignFromRef(icelc as IChartErrorInfo, NameOrType(), nameof(PathStyle), nameof(Theme.PathMarkerSeries),
PathStyle == null, Theme != null, Theme.PathMarkerSeries != null,
() => PathStyle = Theme.PathMarkerSeries
);
AssignFromRef(icelc as IChartErrorInfo, NameOrType(), nameof(ReversePathStyle), nameof(PathStyle),
ReversePathStyle == null, true, PathStyle != null,
() => ReversePathStyle = PathStyle
);
BindPaths = new Evaluators(CategoryPath, OpenValuePath, HighValuePath, LowValuePath, CloseValuePath, ValueLabelPath);
if (!BindPaths.IsValid)
{
if (icelc is IChartErrorInfo icei)
{
var props = new List <String>();
if (String.IsNullOrEmpty(OpenValuePath))
{
props.Add(nameof(OpenValuePath));
}
if (String.IsNullOrEmpty(HighValuePath))
{
props.Add(nameof(HighValuePath));
}
if (String.IsNullOrEmpty(LowValuePath))
{
props.Add(nameof(LowValuePath));
}
if (String.IsNullOrEmpty(CloseValuePath))
{
props.Add(nameof(CloseValuePath));
}
icei.Report(new ChartValidationResult(NameOrType(), $"{String.Join(",", props)}: must be specified", props));
}
}
}
/// <summary>
/// Core element creation.
/// </summary>
/// <param name="index"></param>
/// <param name="valuex"></param>
/// <param name="valuey"></param>
/// <param name="item"></param>
/// <param name="recycler"></param>
/// <param name="evs"></param>
/// <returns></returns>
ItemState <Path> ElementPipeline(int index, double valuex, double valuey, object item, Recycler <Path, ItemState <Path> > recycler, Evaluators evs)
{
var mappedy = ValueAxis.For(valuey);
var mappedx = CategoryAxis.For(valuex);
var markerx = mappedx + MarkerOffset;
_trace.Verbose($"[{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));
}
}
internal State(List <ItemState <Path> > sis, Recycler <Path, ItemState <Path> > rc, Evaluators evs) : base(sis, rc)
{
this.evs = evs;
}
/// <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($"{Name}[{index}] v:({valuex},{valuey}) m:({linex},{mappedy})");
var cs = evs.LabelFor(item);
if (cs == null)
{
return(new ItemState <Path>(index, mappedx, CategoryAxisOffset, mappedy, Segments));
}
else
{
return(new ItemStateCustom <Path>(index, mappedx, CategoryAxisOffset, mappedy, cs, Segments));
}
}
/// <summary>
/// Create the next series state.
/// </summary>
/// <param name="index"></param>
/// <param name="valuex"></param>
/// <param name="item"></param>
/// <param name="recycler"></param>
/// <param name="evs"></param>
/// <returns>New instance or NULL.</returns>
SeriesItemState ElementPipeline(int index, double valuex, object item, Recycler <Path, SeriesItemState> recycler, Evaluators evs)
{
var leftx = CategoryAxis.For(valuex);
var barx = BarOffset;
var rightx = barx + BarWidth;
var sis = evs.byl == null ? new SeriesItemState(index, leftx, BarOffset) : new SeriesItemState_Custom(index, leftx, BarOffset, evs.byl.For(item));
for (int ix = 0; ix < evs.bys.Length; ix++)
{
var valuey = CoerceValue(item, evs.bys[ix]);
if (double.IsNaN(valuey))
{
continue;
}
var colbase = valuey >= 0 ? sis.Max : sis.Min;
var colend = colbase + valuey;
var y1 = ValueAxis.For(colend);
var y2 = ValueAxis.For(colbase);
var topy = Math.Max(y1, y2);
var bottomy = Math.Min(y1, y2);
sis.UpdateLimits(y1);
_trace.Verbose($"{Name}[{index},{ix}] {valuey} ({barx},{topy}) ({rightx},{bottomy}) sis ({sis.Min},{sis.Max})");
var path = recycler.Next(null);
if (path == null)
{
return(null);
}
var shim = new GeometryWithOffsetShim <RectangleGeometry>()
{
PathData = new RectangleGeometry()
{
Rect = new Rect(new Point(barx, topy), new Point(rightx, bottomy))
}
};
path.Item2.DataContext = shim;
BindTo(ColumnStack[ix], "PathStyle", path.Item2, FrameworkElement.StyleProperty);
// bind offset
BindTo(shim, nameof(shim.Offset), path.Item2, Canvas.LeftProperty);
UpdateLimits(valuex, sis.Min, sis.Max);
sis.Elements.Add(new Tuple <double, Path>(valuey, path.Item2));
}
return(sis);
}
internal State(List <SeriesItemState> sis, Recycler <Path, SeriesItemState> rc, Evaluators evs) : base(sis, rc)
{
this.evs = evs;
}
/// <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));
}
}