/// <summary>
/// Sets the position of the slider.
/// </summary>
/// <param name="dp">The data point.</param>
/// <param name="s">The series.</param>
public void SetPosition(DataPoint dp, OxyPlot.DataSeries s)
{
var dp1 = new DataPoint(dp.X, s.YAxis.ActualMaximum);
var dp2 = new DataPoint(dp.X, s.YAxis.ActualMinimum);
var dp3 = new DataPoint(s.XAxis.ActualMinimum, dp.Y);
var dp4 = new DataPoint(s.XAxis.ActualMaximum, dp.Y);
var pt0 = AxisBase.Transform(dp, s.XAxis, s.YAxis);
var pt1 = AxisBase.Transform(dp1, s.XAxis, s.YAxis);
var pt2 = AxisBase.Transform(dp2, s.XAxis, s.YAxis);
var pt3 = AxisBase.Transform(dp3, s.XAxis, s.YAxis);
var pt4 = AxisBase.Transform(dp4, s.XAxis, s.YAxis);
if (ContentTemplate != null)
{
content.Content = new SliderViewModel(s, dp, SliderLabelFormat);
content.ContentTemplate = ContentTemplate;
SetLeft(content, pt0.X);
SetTop(content, pt0.Y);
}
sliderLine1.X1 = pt1.X;
sliderLine1.Y1 = pt1.Y;
sliderLine1.X2 = pt2.X;
sliderLine1.Y2 = pt2.Y;
sliderLine2.X1 = pt3.X;
sliderLine2.Y1 = pt3.Y;
sliderLine2.X2 = pt4.X;
sliderLine2.Y2 = pt4.Y;
Visibility = Visibility.Visible;
}
private DataPoint?GetNearestPoint(OxyPlot.DataSeries s, System.Windows.Point pt, bool snap, bool pointsOnly)
{
if (s == null)
{
return(null);
}
var dp = pc.InverseTransform(pt, s.XAxis, s.YAxis);
if (snap || pointsOnly)
{
var dpn = s.GetNearestPoint(dp);
if (dpn != null && snap)
{
var spn = pc.Transform(dpn.Value, s.XAxis, s.YAxis);
if (spn.DistanceTo(pt) < 20)
{
return(dpn);
}
}
}
if (!pointsOnly)
{
return(s.GetNearestPointOnLine(dp));
}
return(null);
}
public override void OnMouseUp()
{
base.OnMouseUp();
if (currentSeries == null)
{
return;
}
currentSeries = null;
pc.HideSlider();
}
/// <summary>
/// Initializes a new instance of the <see cref="SliderViewModel"/> class.
/// </summary>
/// <param name="series">The series.</param>
/// <param name="point">The point.</param>
/// <param name="fmt">The format string.</param>
public SliderViewModel(OxyPlot.DataSeries series, DataPoint point, string fmt = null)
{
if (String.IsNullOrEmpty(fmt))
{
fmt = DefaultFormat;
}
Format = fmt;
Series = series;
Point = point;
}
public override void OnMouseDown(System.Windows.Point pt, MouseButton button, int clickCount, bool control, bool shift)
{
base.OnMouseDown(pt, button, clickCount, control, shift);
if (button != MouseButton.Left)
return;
// Middle button double click adds an annotation
if (clickCount == 2)
{
// pc.Annotations.
pc.Refresh();
}
currentSeries = pc.GetSeriesFromPoint(pt);
OnMouseMove(pt, control, shift);
//pc.CaptureMouse();
// pc.Cursor = Cursors.Cross;
}
public override void OnMouseDown(System.Windows.Point pt, MouseButton button, int clickCount, bool control, bool shift)
{
base.OnMouseDown(pt, button, clickCount, control, shift);
if (button != MouseButton.Left)
{
return;
}
// Middle button double click adds an annotation
if (clickCount == 2)
{
// pc.Annotations.
pc.Refresh();
}
currentSeries = pc.GetSeriesFromPoint(pt);
OnMouseMove(pt, control, shift);
//pc.CaptureMouse();
// pc.Cursor = Cursors.Cross;
}
public override void OnMouseUp()
{
base.OnMouseUp();
if (currentSeries == null)
return;
currentSeries = null;
pc.HideSlider();
}
public void ShowSlider(OxyPlot.DataSeries s, DataPoint dp)
{
slider.ContentTemplate = SliderTemplate;
slider.SetPosition(dp, s);
}
