source: branches/HeuristicLab.Problems.GrammaticalOptimization/DynamicDataDisplay/GenericChartPlotter.cs @ 12899

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.Research.DynamicDataDisplay.Charts;
using System.Windows;
using Microsoft.Research.DynamicDataDisplay.Common;

namespace Microsoft.Research.DynamicDataDisplay
{
  public sealed class GenericChartPlotter<THorizontal, TVertical>
  {
    private readonly AxisBase<THorizontal> horizontalAxis;
    public AxisBase<THorizontal> HorizontalAxis
    {
      get { return horizontalAxis; }
    }

    private readonly AxisBase<TVertical> verticalAxis;
    public AxisBase<TVertical> VerticalAxis
    {
      get { return verticalAxis; }
    }

    private readonly ChartPlotter plotter;
    public ChartPlotter Plotter
    {
      get { return plotter; }
    }

    public Func<THorizontal, double> HorizontalToDoubleConverter
    {
      get { return horizontalAxis.ConvertToDouble; }
    }

    public Func<double, THorizontal> DoubleToHorizontalConverter
    {
      get { return horizontalAxis.ConvertFromDouble; }
    }

    public Func<TVertical, double> VerticalToDoubleConverter
    {
      get { return verticalAxis.ConvertToDouble; }
    }

    public Func<double, TVertical> DoubleToVerticalConverter
    {
      get { return verticalAxis.ConvertFromDouble; }
    }

    internal GenericChartPlotter(ChartPlotter plotter) : this(plotter, plotter.MainHorizontalAxis as AxisBase<THorizontal>, plotter.MainVerticalAxis as AxisBase<TVertical>) { }

    internal GenericChartPlotter(ChartPlotter plotter, AxisBase<THorizontal> horizontalAxis, AxisBase<TVertical> verticalAxis)
    {
      if (horizontalAxis == null)
        throw new ArgumentNullException(Strings.Exceptions.PlotterMainHorizontalAxisShouldNotBeNull);
      if (verticalAxis == null)
        throw new ArgumentNullException(Strings.Exceptions.PlotterMainVerticalAxisShouldNotBeNull);

      this.horizontalAxis = horizontalAxis;
      this.verticalAxis = verticalAxis;

      this.plotter = plotter;
    }

    public GenericRect<THorizontal, TVertical> ViewportRect
    {
      get
      {
        DataRect viewportRect = plotter.Viewport.Visible;
        return CreateGenericRect(viewportRect);
      }
      set
      {
        DataRect viewportRect = CreateRect(value);
        plotter.Viewport.Visible = viewportRect;
      }
    }

    public GenericRect<THorizontal, TVertical> DataRect
    {
      get
      {
        DataRect dataRect = plotter.Viewport.Visible.ViewportToData(plotter.Viewport.Transform);
        return CreateGenericRect(dataRect);
      }
      set
      {
        DataRect dataRect = CreateRect(value);
        plotter.Viewport.Visible = dataRect.DataToViewport(plotter.Viewport.Transform);
      }
    }

    private DataRect CreateRect(GenericRect<THorizontal, TVertical> value)
    {
      double xMin = HorizontalToDoubleConverter(value.XMin);
      double xMax = HorizontalToDoubleConverter(value.XMax);
      double yMin = VerticalToDoubleConverter(value.YMin);
      double yMax = VerticalToDoubleConverter(value.YMax);

      return new DataRect(new Point(xMin, yMin), new Point(xMax, yMax));
    }

    private GenericRect<THorizontal, TVertical> CreateGenericRect(DataRect rect)
    {
      double xMin = rect.XMin;
      double xMax = rect.XMax;
      double yMin = rect.YMin;
      double yMax = rect.YMax;

      GenericRect<THorizontal, TVertical> res = new GenericRect<THorizontal, TVertical>(
        DoubleToHorizontalConverter(xMin),
        DoubleToVerticalConverter(yMin),
        DoubleToHorizontalConverter(xMax),
        DoubleToVerticalConverter(yMax));

      return res;
    }

  }
}