/// <summary>
/// Called on mouse move events.
/// </summary>
/// <param name="args">An instance that contains the event data.</param>
protected override void OnMouseMoved(MouseMovedEventArgs args)
{
base.OnMouseMoved(args);
if (args.Handled)
{
return;
}
if (ShowDynamicTooltips)
{
string tooltip = null;
var hitArgs = new HitTestArguments(new ScreenPoint(args.X, args.Y), MouseHitTolerance);
foreach (var result in ActualModel.HitTest(hitArgs))
{
var plotElement = result.Element as PlotElement;
if (plotElement != null && !String.IsNullOrEmpty(plotElement.ToolTip))
{
tooltip = String.IsNullOrEmpty(tooltip) ? plotElement.ToolTip : tooltip + Environment.NewLine + plotElement.ToolTip;
}
}
TooltipText = tooltip;
}
args.Handled = ActualController.HandleMouseMove(this,
args.ToOxyMouseEventArgs());
}
/// <summary>
/// When overridden in a derived class, tests if the plot element is hit by the specified point.
/// </summary>
/// <param name="args">The hit test arguments.</param>
/// <returns>
/// The result of the hit test.
/// </returns>
protected override HitTestResult HitTestOverride(HitTestArguments args)
{
if (screenRectangle.Contains(args.Point))
{
return(new HitTestResult(this, args.Point));
}
return(null);
}
/// <summary>
/// When overridden in a derived class, tests if the plot element is hit by the specified point.
/// </summary>
/// <param name="args">The hit test arguments.</param>
/// <returns>
/// The result of the hit test.
/// </returns>
protected override HitTestResult HitTestOverride(HitTestArguments args)
{
if (this.actualBounds.Contains(args.Point))
{
return(new HitTestResult(this, args.Point));
}
return(null);
}
protected override HitTestResult HitTestOverride(HitTestArguments args)
{
if (this.actualBounds == null)
{
return(null);
}
return(ScreenPointHelper.IsPointInPolygon(args.Point, this.actualBounds) ? new HitTestResult(this, args.Point) : null);
}
/// <summary>
/// When overridden in a derived class, tests if the plot element is hit by the specified point.
/// </summary>
/// <param name="args">The hit test arguments.</param>
/// <returns>
/// The result of the hit test.
/// </returns>
protected override HitTestResult HitTestOverride(HitTestArguments args)
{
if (this.screenPosition.DistanceTo(args.Point) < this.Size)
{
return(new HitTestResult(this, this.screenPosition));
}
return(null);
}
/// <summary>
/// When overridden in a derived class, tests if the plot element is hit by the specified point.
/// </summary>
/// <param name="args">The hit test arguments.</param>
/// <returns>
/// The result of the hit test.
/// </returns>
protected override HitTestResult HitTestOverride(HitTestArguments args)
{
if (this.screenPoints == null)
{
// Points not specified.
return(null);
}
return(ScreenPointHelper.IsPointInPolygon(args.Point, this.screenPoints) ? new HitTestResult(this, args.Point) : null);
}
/// <summary>
/// When overridden in a derived class, tests if the plot element is hit by the specified point.
/// </summary>
/// <param name="args">The hit test arguments.</param>
/// <returns>
/// The result of the hit test.
/// </returns>
protected override HitTestResult HitTestOverride(HitTestArguments args)
{
if (this.actualBounds == null)
{
return(null);
}
// Todo: see if performance can be improved by checking rectangle (with rotation and alignment), not polygon
return(ScreenPointHelper.IsPointInPolygon(args.Point, this.actualBounds) ? new HitTestResult(this, args.Point) : null);
}
/// <summary>
/// When overridden in a derived class, tests if the plot element is hit by the specified point.
/// </summary>
/// <param name="args">The hit test arguments.</param>
/// <returns>
/// The result of the hit test.
/// </returns>
protected override HitTestResult HitTestOverride(HitTestArguments args)
{
var nearestPoint = ScreenPointHelper.FindNearestPointOnPolyline(args.Point, this.screenPoints);
double dist = (args.Point - nearestPoint).Length;
if (dist < args.Tolerance)
{
return(new HitTestResult(this, nearestPoint));
}
return(null);
}
public static Example ClickingOnAnAnnotation()
{
var plotModel = new PlotModel {
Title = "Clicking on an annotation", Subtitle = "Click on the rectangles"
};
plotModel.Axes.Add(new LinearAxis {
Position = AxisPosition.Bottom
});
plotModel.Axes.Add(new LinearAxis {
Position = AxisPosition.Left
});
var annotation1 = new RectangleAnnotation {
Fill = OxyColors.Green, Text = "RectangleAnnotation 1", MinimumX = 25, MaximumX = 75, MinimumY = 20, MaximumY = 40
};
plotModel.Annotations.Add(annotation1);
var annotation2 = new RectangleAnnotation {
Fill = OxyColors.SkyBlue, Text = "RectangleAnnotation 2", MinimumX = 25, MaximumX = 75, MinimumY = 60, MaximumY = 80
};
plotModel.Annotations.Add(annotation2);
EventHandler <OxyMouseDownEventArgs> handleMouseClick = (s, e) =>
{
plotModel.Subtitle = "You clicked " + ((RectangleAnnotation)s).Text;
plotModel.InvalidatePlot(false);
};
annotation1.MouseDown += handleMouseClick;
annotation2.MouseDown += handleMouseClick;
var controller = new PlotController();
var handleClick = new DelegatePlotCommand <OxyMouseDownEventArgs>(
(v, c, e) =>
{
var args = new HitTestArguments(e.Position, 10);
var firstHit = v.ActualModel.HitTest(args).FirstOrDefault(x => x.Element is RectangleAnnotation);
if (firstHit != null)
{
e.Handled = true;
plotModel.Subtitle = "You clicked " + ((RectangleAnnotation)firstHit.Element).Text;
plotModel.InvalidatePlot(false);
}
});
controller.Bind(new OxyMouseDownGesture(OxyMouseButton.Left), handleClick);
return(new Example(plotModel, controller));
}
/// <summary>
/// When overridden in a derived class, tests if the plot element is hit by the specified point.
/// </summary>
/// <param name="args">The hit test arguments.</param>
/// <returns>
/// The result of the hit test.
/// </returns>
protected override HitTestResult HitTestOverride(HitTestArguments args)
{
var thr = this.GetNearestPoint(args.Point, true) ?? this.GetNearestPoint(args.Point, false);
if (thr != null)
{
double distance = thr.Position.DistanceTo(args.Point);
if (distance > args.Tolerance)
{
return(null);
}
return(new HitTestResult(this, thr.Position, thr.Item, thr.Index));
}
return(null);
}
/// <summary>
/// When overridden in a derived class, tests if the plot element is hit by the specified point.
/// </summary>
/// <param name="args">The hit test arguments.</param>
/// <returns>
/// The result of the hit test.
/// </returns>
protected override HitTestResult HitTestOverride(HitTestArguments args)
{
if ((args.Point - this.screenStartPoint).Length < args.Tolerance)
{
return(new HitTestResult(this, this.screenStartPoint, null, 1));
}
if ((args.Point - this.screenEndPoint).Length < args.Tolerance)
{
return(new HitTestResult(this, this.screenEndPoint, null, 2));
}
var p = ScreenPointHelper.FindPointOnLine(args.Point, this.screenStartPoint, this.screenEndPoint);
if ((p - args.Point).Length < args.Tolerance)
{
return(new HitTestResult(this, p));
}
return(null);
}
/// <summary>
/// Override for legend hit test.
/// </summary>
/// <param name="args">Arguments passe to the hit test</param>
/// <returns>The hit test results.</returns>
protected override HitTestResult LegendHitTest(HitTestArguments args)
{
ScreenPoint point = args.Point;
if (this.IsPointInLegend(point))
{
if (this.SeriesPosMap != null && this.SeriesPosMap.Count > 0)
{
foreach (KeyValuePair <Series.Series, OxyRect> kvp in this.SeriesPosMap)
{
if (kvp.Value.Contains(point))
{
kvp.Key.IsVisible = !kvp.Key.IsVisible;
this.PlotModel.InvalidatePlot(false);
break;
}
}
}
}
return(null);
}
/// <summary>
/// When overridden in a derived class, tests if the plot element is hit by the specified point.
/// </summary>
/// <param name="args">The hit test arguments.</param>
/// <returns>
/// The result of the hit test.
/// </returns>
protected override HitTestResult HitTestOverride(HitTestArguments args)
{
if (this.screenPoints == null)
{
// Points not specified.
return null;
}
return ScreenPointHelper.IsPointInPolygon(args.Point, this.screenPoints) ? new HitTestResult(this, args.Point) : null;
}
/// <summary>
/// When overridden in a derived class, tests if the plot element is hit by the specified point.
/// </summary>
/// <param name="args">The hit test arguments.</param>
/// <returns>
/// The result of the hit test.
/// </returns>
protected override HitTestResult HitTestOverride(HitTestArguments args)
{
var nearestPoint = ScreenPointHelper.FindNearestPointOnPolyline(args.Point, this.screenPoints);
double dist = (args.Point - nearestPoint).Length;
if (dist < args.Tolerance)
{
return new HitTestResult(this, nearestPoint);
}
return null;
}
/// <summary>
/// When overridden in a derived class, tests if the plot element is hit by the specified point.
/// </summary>
/// <param name="args">The hit test arguments.</param>
/// <returns>
/// The result of the hit test.
/// </returns>
protected override HitTestResult HitTestOverride(HitTestArguments args)
{
if (this.screenRectangle.Contains(args.Point))
{
return new HitTestResult(this, args.Point);
}
return null;
}
/// <summary>
/// Override for legend hit test.
/// </summary>
/// <param name="args">Arguments passe to the hit test</param>
/// <returns>The hit test results.</returns>
protected override HitTestResult HitTestOverride(HitTestArguments args)
{
return(this.LegendHitTest(args));
}
/// <summary>
/// Tests if the plot element is hit by the specified point.
/// </summary>
/// <param name="args">The hit test arguments.</param>
/// <returns>
/// A hit test result.
/// </returns>
public HitTestResult HitTest(HitTestArguments args)
{
return(this.HitTestOverride(args));
}
/// <summary>
/// When overridden in a derived class, tests if the plot element is hit by the specified point.
/// </summary>
/// <param name="args">The hit test arguments.</param>
/// <returns>
/// The result of the hit test.
/// </returns>
protected override HitTestResult HitTestOverride(HitTestArguments args)
{
if (this.actualBounds.Contains(args.Point))
{
return new HitTestResult(this, args.Point);
}
return null;
}
/// <summary>
/// Called on mouse move events.
/// </summary>
/// <param name="args">An instance that contains the event data.</param>
protected override void OnMouseMoved(MouseMovedEventArgs args)
{
base.OnMouseMoved(args);
if (args.Handled)
return;
if (ShowDynamicTooltips)
{
string tooltip = null;
var hitArgs = new HitTestArguments(new ScreenPoint(args.X, args.Y), MouseHitTolerance);
foreach (var result in ActualModel.HitTest(hitArgs))
{
var plotElement = result.Element as PlotElement;
if (plotElement != null && !String.IsNullOrEmpty(plotElement.ToolTip))
{
tooltip = String.IsNullOrEmpty(tooltip) ? plotElement.ToolTip : tooltip + Environment.NewLine + plotElement.ToolTip;
}
}
TooltipText = tooltip;
}
args.Handled = ActualController.HandleMouseMove(this,
args.ToOxyMouseEventArgs());
}
/// <summary>
/// When overridden in a derived class, tests if the plot element is hit by the specified point.
/// </summary>
/// <param name="args">The hit test arguments.</param>
/// <returns>
/// The result of the hit test.
/// </returns>
protected override HitTestResult HitTestOverride(HitTestArguments args)
{
var thr = this.GetNearestPoint(args.Point, true) ?? this.GetNearestPoint(args.Point, false);
if (thr != null)
{
double distance = thr.Position.DistanceTo(args.Point);
if (distance > args.Tolerance)
{
return null;
}
return new HitTestResult(this, thr.Position, thr.Item, thr.Index);
}
return null;
}
/// <summary>
/// When overridden in a derived class, tests if the plot element is hit by the specified point.
/// </summary>
/// <param name="args">The hit test arguments.</param>
/// <returns>
/// The result of the hit test.
/// </returns>
protected override HitTestResult HitTestOverride(HitTestArguments args)
{
if (this.screenPosition.DistanceTo(args.Point) < this.Size)
{
return new HitTestResult(this, this.screenPosition);
}
return null;
}
/// <summary> /// Defines the legend hit test behaviour. /// </summary> /// <param name="args">The hit test arguments.</param> /// <returns>The hit test result.</returns> protected abstract HitTestResult LegendHitTest(HitTestArguments args);
/// <summary>
/// When overridden in a derived class, tests if the plot element is hit by the specified point.
/// </summary>
/// <param name="args">The hit test arguments.</param>
/// <returns>
/// The result of the hit test.
/// </returns>
protected override HitTestResult HitTestOverride(HitTestArguments args)
{
if (this.actualBounds == null)
{
return null;
}
// Todo: see if performance can be improved by checking rectangle (with rotation and alignment), not polygon
return ScreenPointHelper.IsPointInPolygon(args.Point, this.actualBounds) ? new HitTestResult(this, args.Point) : null;
}
/// <summary>
/// Tests if the plot element is hit by the specified point.
/// </summary>
/// <param name="args">The hit test arguments.</param>
/// <returns>
/// A hit test result.
/// </returns>
protected override HitTestResult HitTestOverride(HitTestArguments args)
{
return(null);
}
/// <summary>
/// Tests if the plot element is hit by the specified point.
/// </summary>
/// <param name="args">The hit test arguments.</param>
/// <returns>
/// A hit test result.
/// </returns>
protected override HitTestResult HitTestOverride(HitTestArguments args)
{
return null;
}
/// <summary>
/// When overridden in a derived class, tests if the plot element is hit by the specified point.
/// </summary>
/// <param name="args">The hit test arguments.</param>
/// <returns>
/// The result of the hit test.
/// </returns>
protected override HitTestResult HitTestOverride(HitTestArguments args)
{
if ((args.Point - this.screenStartPoint).Length < args.Tolerance)
{
return new HitTestResult(this, this.screenStartPoint, null, 1);
}
if ((args.Point - this.screenEndPoint).Length < args.Tolerance)
{
return new HitTestResult(this, this.screenEndPoint, null, 2);
}
var p = ScreenPointHelper.FindPointOnLine(args.Point, this.screenStartPoint, this.screenEndPoint);
if ((p - args.Point).Length < args.Tolerance)
{
return new HitTestResult(this, p);
}
return null;
}
protected override HitTestResult HitTestOverride(HitTestArguments args)
{
return(Points.Count < 2 ? null : base.HitTestOverride(args));
}
