QuickLook.Plugin.WavLabelViewer/PlotAxisLimitRule.cs at main · Cardroid/QuickLook.Plugin.WavLabelViewer · GitHub

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using System;
using System.Linq;

using ScottPlot;

namespace QuickLook.Plugin.WavLabelViewer;

public class PlotAxisLimitRule(AxisLimits limits, IAxis axis) : IAxisRule
{
    public AxisLimits Limits { get; set; } = limits;
    public IAxis Axis { get; set; } = axis;

    public void Apply(RenderPack rp, bool beforeLayout)
    {
        if (rp.Plot.Axes.GetAxes().Any(ax => ax == this.Axis))
        {
            if (this.Axis is IXAxis xAxis)
            {
                double xSpan = Math.Min(xAxis.Range.Span, this.Limits.HorizontalSpan);

                if (xAxis.Range.Max > this.Limits.Right)
                {
                    xAxis.Range.Max = this.Limits.Right;
                    xAxis.Range.Min = this.Limits.Right - xSpan;
                }

                if (xAxis.Range.Min < this.Limits.Left)
                {
                    xAxis.Range.Min = this.Limits.Left;
                    xAxis.Range.Max = this.Limits.Left + xSpan;
                }
            }
            else if (this.Axis is IYAxis yAxis)
            {
                double ySpan = Math.Min(yAxis.Range.Span, this.Limits.VerticalSpan);

                if (yAxis.Range.Max > this.Limits.Top)
                {
                    yAxis.Range.Max = this.Limits.Top;
                    yAxis.Range.Min = this.Limits.Top - ySpan;
                }

                if (yAxis.Range.Min < this.Limits.Bottom)
                {
                    yAxis.Range.Min = this.Limits.Bottom;
                    yAxis.Range.Max = this.Limits.Bottom + ySpan;
                }
            }
        }
    }
}