public bool AddDataSource(IGraphDataSource graphDataSource)
{
if (graphDataProviders.Count == MaxDataSources)
{
// Maximum number of data sources has already been reached
return(false);
}
var provider = new GraphDataProvider {
DataSource = graphDataSource, IsGraphed = true
};
provider.PenData = graphDataPens.FirstOrDefault(p => !usedPens.Contains(p));
if (!(graphDataSource is IHiddenGraphDataSource))
{
this.usedPens.Add(provider.PenData);
}
this.graphDataProviders.Add(provider);
provider.DataChanged += OnProviderDataChanged;
var shape = new GraphShape {
Stroke = provider.PenData.Brush, StrokeDashCap = PenLineCap.Round, StrokeLineJoin = PenLineJoin.Round
};
shape.SetBinding(Shape.StrokeThicknessProperty, new Binding {
Source = provider, Path = new PropertyPath(GraphDataProvider.StrokeThicknessProperty)
});
shape.SetBinding(Shape.StrokeDashArrayProperty, new Binding {
Source = provider, Path = new PropertyPath(GraphDataProvider.StrokeDashArrayProperty)
});
shape.SetBinding(Shape.FillProperty, new Binding {
Source = provider, Path = new PropertyPath(GraphDataProvider.FillProperty)
});
shape.SetBinding(Panel.ZIndexProperty, new Binding {
Source = provider, Path = new PropertyPath(GraphDataProvider.ZIndexProperty)
});
this.shapeTable.Add(provider, shape);
if (this.canvas != null)
{
this.canvas.Children.Add(shape);
}
OnProviderDataChanged(provider, EventArgs.Empty);
return(true);
}
public void RemoveDataSource(IGraphDataSource graphDataSource)
{
var provider = this.graphDataProviders.FirstOrDefault(s => s.DataSource == graphDataSource);
if (provider == null)
{
return;
}
provider.DataChanged -= OnProviderDataChanged;
this.graphDataProviders.Remove(provider);
this.usedPens.Remove(provider.PenData);
// If we still have providers, recompute the Y axis range, scanning all sources, since the range
// may now be way too big.
// If there are now no providers, just leave the Y axis alone.
if (graphDataProviders.Count > 0 && !this.SideBar.YAxisChangedByUser)
{
RecomputeYAxisRange();
}
if (this.graphGrid != null)
{
this.graphGrid.InvalidateVisual();
}
if (this.canvas != null)
{
this.canvas.Children.Remove(this.shapeTable[provider]);
}
this.shapeTable.Remove(provider);
if (this.graphDataProviders.Count == 0)
{
this.timeEnd = MinimumGraphTime;
this.timeStart = 0;
this.DataRangeStop = 0;
RaiseTimeRangeChanged();
}
}
/// <summary>
/// Stores a binding between a render data source and a render data target
/// </summary>
public Binding( IGraphDataSource source, IGraphDataTarget target )
{
m_Source = source;
m_Target = target;
}
/// <summary>
/// Binds a source to a target
/// </summary>
/// <param name="source">Data source</param>
/// <param name="target">Target to bind to. Must belong to this node</param>
public void Bind( IGraphDataSource source, IGraphDataTarget target )
{
Arguments.CheckNotNull( source, "source" );
Arguments.CheckNotNull( target, "target" );
m_Bindings.Add( new Binding( source, target ) );
}
/// <summary>
/// Removes a data source
/// </summary>
/// <param name="source">Data source</param>
public void Remove( IGraphDataSource source )
{
Arguments.CheckNotNull( source, "source" );
m_Sources.Remove( source.Name );
}
/// <summary>
/// Adds a new data source
/// </summary>
/// <param name="source">Data source</param>
public void Add( IGraphDataSource source )
{
Arguments.CheckNotNull( source, "source" );
m_Sources.Add( source.Name, source );
}
public void RemoveDataSource(IGraphDataSource graphDataSource)
{
var provider = this.graphDataProviders.FirstOrDefault(s => s.DataSource == graphDataSource);
if (provider == null)
return;
provider.DataChanged -= OnProviderDataChanged;
this.graphDataProviders.Remove(provider);
this.usedPens.Remove(provider.PenData);
// If we still have providers, recompute the Y axis range, scanning all sources, since the range
// may now be way too big.
// If there are now no providers, just leave the Y axis alone.
if (graphDataProviders.Count > 0 && !this.SideBar.YAxisChangedByUser)
{
RecomputeYAxisRange();
}
if (this.graphGrid != null)
{
this.graphGrid.InvalidateVisual();
}
if (this.canvas != null)
{
this.canvas.Children.Remove(this.shapeTable[provider]);
}
this.shapeTable.Remove(provider);
if (this.graphDataProviders.Count == 0)
{
this.timeEnd = MinimumGraphTime;
this.timeStart = 0;
this.DataRangeStop = 0;
RaiseTimeRangeChanged();
}
}
public bool AddDataSource(IGraphDataSource graphDataSource)
{
if (graphDataProviders.Count == MaxDataSources)
{
// Maximum number of data sources has already been reached
return false;
}
var provider = new GraphDataProvider { DataSource = graphDataSource, IsGraphed = true };
provider.PenData = graphDataPens.FirstOrDefault(p => !usedPens.Contains(p));
if (!(graphDataSource is IHiddenGraphDataSource))
{
this.usedPens.Add(provider.PenData);
}
this.graphDataProviders.Add(provider);
provider.DataChanged += OnProviderDataChanged;
var shape = new GraphShape { Stroke = provider.PenData.Brush, StrokeDashCap = PenLineCap.Round, StrokeLineJoin = PenLineJoin.Round };
shape.SetBinding(Shape.StrokeThicknessProperty, new Binding { Source = provider, Path = new PropertyPath(GraphDataProvider.StrokeThicknessProperty) });
shape.SetBinding(Shape.StrokeDashArrayProperty, new Binding { Source = provider, Path = new PropertyPath(GraphDataProvider.StrokeDashArrayProperty) });
shape.SetBinding(Shape.FillProperty, new Binding { Source = provider, Path = new PropertyPath(GraphDataProvider.FillProperty) });
shape.SetBinding(Panel.ZIndexProperty, new Binding { Source = provider, Path = new PropertyPath(GraphDataProvider.ZIndexProperty) });
this.shapeTable.Add(provider, shape);
if (this.canvas != null)
{
this.canvas.Children.Add(shape);
}
OnProviderDataChanged(provider, EventArgs.Empty);
return true;
}
