/// <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); } }