/// <summary>
/// Measures this series.
/// </summary>
/// <param name="chart">The chart.</param>
/// <param name="secondaryAxis">The secondary axis.</param>
/// <param name="primaryAxis">The primary axis.</param>
/// <exception cref="NullReferenceException">Unexpected null stacker</exception>
public override void Measure(
CartesianChart <TDrawingContext> chart, IAxis <TDrawingContext> secondaryAxis, IAxis <TDrawingContext> primaryAxis)
{
var drawLocation = chart.DrawMarginLocation;
var drawMarginSize = chart.DrawMarginSize;
var secondaryScale = new Scaler(drawLocation, drawMarginSize, primaryAxis);
var previousSecondaryScale =
primaryAxis.PreviousDataBounds == null ? null : new Scaler(drawLocation, drawMarginSize, primaryAxis);
var primaryScale = new Scaler(drawLocation, drawMarginSize, secondaryAxis);
var uw = secondaryScale.ToPixels(1f) - secondaryScale.ToPixels(0f);
var uwm = 0.5f * uw;
var sw = Stroke?.StrokeThickness ?? 0;
var p = primaryScale.ToPixels(pivot);
var pos = chart.SeriesContext.GetStackedColumnPostion(this);
var count = chart.SeriesContext.GetStackedColumnSeriesCount();
var cp = 0f;
if (count > 1)
{
uw /= count;
uwm = 0.5f * uw;
cp = (pos - count / 2f) * uw + uwm;
}
if (uw > MaxBarWidth)
{
uw = (float)MaxBarWidth;
uwm = uw / 2f;
}
var actualZIndex = ZIndex == 0 ? ((ISeries)this).SeriesId : ZIndex;
if (Fill != null)
{
Fill.ZIndex = actualZIndex + 0.1;
Fill.ClipRectangle = new RectangleF(drawLocation, drawMarginSize);
chart.Canvas.AddDrawableTask(Fill);
}
if (Stroke != null)
{
Stroke.ZIndex = actualZIndex + 0.2;
Stroke.ClipRectangle = new RectangleF(drawLocation, drawMarginSize);
chart.Canvas.AddDrawableTask(Stroke);
}
if (DataLabelsDrawableTask != null)
{
DataLabelsDrawableTask.ZIndex = actualZIndex + 0.3;
DataLabelsDrawableTask.ClipRectangle = new RectangleF(drawLocation, drawMarginSize);
chart.Canvas.AddDrawableTask(DataLabelsDrawableTask);
}
var dls = (float)DataLabelsSize;
var toDeletePoints = new HashSet <ChartPoint>(everFetched);
var stacker = chart.SeriesContext.GetStackPosition(this, GetStackGroup());
if (stacker == null)
{
throw new NullReferenceException("Unexpected null stacker");
}
var rx = (float)Rx;
var ry = (float)Ry;
foreach (var point in Fetch(chart))
{
var visual = point.Context.Visual as TVisual;
var secondary = secondaryScale.ToPixels(point.SecondaryValue);
if (point.IsNull)
{
if (visual != null)
{
visual.X = p;
visual.Y = secondary - uwm + cp;
visual.Width = 0;
visual.Height = uw;
visual.RemoveOnCompleted = true;
point.Context.Visual = null;
}
continue;
}
if (visual == null)
{
var yi = secondary - uwm + cp;
if (previousSecondaryScale != null)
{
yi = previousSecondaryScale.ToPixels(point.SecondaryValue) - uwm + cp;
}
var r = new TVisual
{
X = p,
Y = yi,
Width = 0,
Height = uw,
Rx = rx,
Ry = ry
};
visual = r;
point.Context.Visual = visual;
OnPointCreated(point);
r.CompleteAllTransitions();
_ = everFetched.Add(point);
}
if (Fill != null)
{
Fill.AddGeometryToPaintTask(visual);
}
if (Stroke != null)
{
Stroke.AddGeometryToPaintTask(visual);
}
var sizedGeometry = visual;
var sy = stacker.GetStack(point);
var primaryI = primaryScale.ToPixels(sy.Start);
var primaryJ = primaryScale.ToPixels(sy.End);
var y = secondary - uwm + cp;
sizedGeometry.X = primaryJ;
sizedGeometry.Y = y;
sizedGeometry.Width = primaryI - primaryJ;
sizedGeometry.Height = uw;
sizedGeometry.Rx = rx;
sizedGeometry.Ry = ry;
sizedGeometry.RemoveOnCompleted = false;
point.Context.HoverArea = new RectangleHoverArea().SetDimensions(secondary - uwm + cp, primaryJ, uw, primaryI - primaryJ);
OnPointMeasured(point);
_ = toDeletePoints.Remove(point);
if (DataLabelsDrawableTask != null)
{
var label = (TLabel?)point.Context.Label;
if (label == null)
{
var l = new TLabel {
X = secondary - uwm + cp, Y = p
};
_ = l.TransitionateProperties(nameof(l.X), nameof(l.Y))
.WithAnimation(animation =>
animation
.WithDuration(AnimationsSpeed ?? chart.AnimationsSpeed)
.WithEasingFunction(EasingFunction ?? chart.EasingFunction));
l.CompleteAllTransitions();
label = l;
point.Context.Label = label;
}
DataLabelsDrawableTask.AddGeometryToPaintTask(label);
label.Text = DataLabelsFormatter(point);
label.TextSize = dls;
label.Padding = DataLabelsPadding;
var labelPosition = GetLabelPosition(
primaryJ, y, primaryI - primaryJ, uw, label.Measure(DataLabelsDrawableTask), DataLabelsPosition, SeriesProperties, point.PrimaryValue > Pivot);
label.X = labelPosition.X;
label.Y = labelPosition.Y;
}
}
foreach (var point in toDeletePoints)
{
if (point.Context.Chart != chart.View)
{
continue;
}
SoftDeletePoint(point, primaryScale, secondaryScale);
_ = everFetched.Remove(point);
}
}
/// <inheritdoc cref="ICartesianSeries{TDrawingContext}.Measure(CartesianChart{TDrawingContext}, IAxis{TDrawingContext}, IAxis{TDrawingContext})"/>
public override void Measure(
CartesianChart <TDrawingContext> chart, IAxis <TDrawingContext> secondaryAxis, IAxis <TDrawingContext> primaryAxis)
{
var drawLocation = chart.DrawMarginLocation;
var drawMarginSize = chart.DrawMarginSize;
var secondaryScale = new Scaler(drawLocation, drawMarginSize, secondaryAxis);
var primaryScale = new Scaler(drawLocation, drawMarginSize, primaryAxis);
var previousPrimaryScale =
primaryAxis.PreviousDataBounds == null ? null : new Scaler(drawLocation, drawMarginSize, primaryAxis, true);
var previousSecondaryScale =
secondaryAxis.PreviousDataBounds == null ? null : new Scaler(drawLocation, drawMarginSize, secondaryAxis, true);
var uw = secondaryScale.ToPixels((float)secondaryAxis.UnitWidth) - secondaryScale.ToPixels(0f);
var puw = previousSecondaryScale == null ? 0 : previousSecondaryScale.ToPixels((float)secondaryAxis.UnitWidth) - previousSecondaryScale.ToPixels(0f);
uw -= (float)GroupPadding;
puw -= (float)GroupPadding;
var uwm = 0.5f * uw;
var pos = chart.SeriesContext.GetColumnPostion(this);
var count = chart.SeriesContext.GetColumnSeriesCount();
var cp = 0f;
if (!IgnoresBarPosition && count > 1)
{
uw /= count;
puw /= count;
uwm = 0.5f * uw;
cp = (pos - count / 2f) * uw + uwm;
}
if (uw > MaxBarWidth)
{
uw = (float)MaxBarWidth;
uwm = uw * 0.5f;
puw = uw;
}
var sw = Stroke?.StrokeThickness ?? 0;
var p = primaryScale.ToPixels(pivot);
var actualZIndex = ZIndex == 0 ? ((ISeries)this).SeriesId : ZIndex;
if (Fill != null)
{
Fill.ZIndex = actualZIndex + 0.1;
Fill.ClipRectangle = new RectangleF(drawLocation, drawMarginSize);
chart.Canvas.AddDrawableTask(Fill);
}
if (Stroke != null)
{
Stroke.ZIndex = actualZIndex + 0.2;
Stroke.ClipRectangle = new RectangleF(drawLocation, drawMarginSize);
chart.Canvas.AddDrawableTask(Stroke);
}
if (DataLabelsDrawableTask != null)
{
DataLabelsDrawableTask.ZIndex = actualZIndex + 0.3;
DataLabelsDrawableTask.ClipRectangle = new RectangleF(drawLocation, drawMarginSize);
chart.Canvas.AddDrawableTask(DataLabelsDrawableTask);
}
var dls = (float)DataLabelsSize;
var toDeletePoints = new HashSet <ChartPoint>(everFetched);
var rx = (float)Rx;
var ry = (float)Ry;
foreach (var point in Fetch(chart))
{
var visual = point.Context.Visual as TVisual;
var primary = primaryScale.ToPixels(point.PrimaryValue);
var secondary = secondaryScale.ToPixels(point.SecondaryValue);
var b = Math.Abs(primary - p);
if (point.IsNull)
{
if (visual != null)
{
visual.X = secondary - uwm + cp;
visual.Y = p;
visual.Width = uw;
visual.Height = 0;
visual.RemoveOnCompleted = true;
point.Context.Visual = null;
}
continue;
}
if (visual == null)
{
var xi = secondary - uwm + cp;
var pi = p;
var uwi = uw;
var hi = 0f;
if (previousSecondaryScale != null && previousPrimaryScale != null)
{
var previousP = previousPrimaryScale.ToPixels(pivot);
var previousPrimary = previousPrimaryScale.ToPixels(point.PrimaryValue);
var bp = Math.Abs(previousPrimary - previousP);
var cyp = point.PrimaryValue > pivot ? previousPrimary : previousPrimary - bp;
xi = previousSecondaryScale.ToPixels(point.SecondaryValue) - uwm + cp;
pi = chart.IsZoomingOrPanning ? cyp : previousP;
uwi = puw;
hi = chart.IsZoomingOrPanning ? bp : 0;
}
var r = new TVisual
{
X = xi,
Y = pi,
Width = uwi,
Height = 0,
Rx = rx,
Ry = ry
};
visual = r;
point.Context.Visual = visual;
OnPointCreated(point);
r.CompleteAllTransitions();
_ = everFetched.Add(point);
}
if (Fill != null)
{
Fill.AddGeometryToPaintTask(visual);
}
if (Stroke != null)
{
Stroke.AddGeometryToPaintTask(visual);
}
var cy = point.PrimaryValue > pivot ? primary : primary - b;
var x = secondary - uwm + cp;
visual.X = x;
visual.Y = cy;
visual.Width = uw;
visual.Height = b;
visual.Rx = rx;
visual.Ry = ry;
visual.RemoveOnCompleted = false;
var ha = new RectangleHoverArea().SetDimensions(secondary - uwm + cp, cy, uw, b);
point.Context.HoverArea = ha;
OnPointMeasured(point);
_ = toDeletePoints.Remove(point);
if (DataLabelsDrawableTask != null)
{
var label = (TLabel?)point.Context.Label;
if (label == null)
{
var l = new TLabel {
X = secondary - uwm + cp, Y = p
};
_ = l.TransitionateProperties(nameof(l.X), nameof(l.Y))
.WithAnimation(animation =>
animation
.WithDuration(AnimationsSpeed ?? chart.AnimationsSpeed)
.WithEasingFunction(EasingFunction ?? chart.EasingFunction));
l.CompleteAllTransitions();
label = l;
point.Context.Label = l;
}
DataLabelsDrawableTask.AddGeometryToPaintTask(label);
label.Text = DataLabelsFormatter(point);
label.TextSize = dls;
label.Padding = DataLabelsPadding;
var labelPosition = GetLabelPosition(
x, cy, uw, b, label.Measure(DataLabelsDrawableTask), DataLabelsPosition, SeriesProperties, point.PrimaryValue > Pivot);
label.X = labelPosition.X;
label.Y = labelPosition.Y;
}
}
foreach (var point in toDeletePoints)
{
if (point.Context.Chart != chart.View)
{
continue;
}
SoftDeletePoint(point, primaryScale, secondaryScale);
_ = everFetched.Remove(point);
}
}
