private static ScatterSeries ProvideScatterSeries(PropertyInfo propertyInfo, string dependentValuePath,
string independentValuePath)
{
var series = new ScatterSeries();
series.SetBinding(DataPointSeries.ItemsSourceProperty, propertyInfo.GetBinding());
series.IndependentValuePath = independentValuePath;
series.DependentValuePath = dependentValuePath;
series.Unloaded += (o, e) =>
{
var control = o as ScatterSeries;
if (control == null)
{
return;
}
BindingOperations.ClearAllBindings(control);
};
return(series);
}
// note: we have modified this, but probably very poorly! WWJC do?
private static void SeriesSourceChanged(DependencyObject d,
DependencyPropertyChangedEventArgs e)
{
if (!(d is Chart))
{
throw new Exception("Series attached property only works on a Chart type");
}
var chart = d as Chart;
/* Get our collection of data we need for each series */
var chartSeriesSource = e.NewValue as PlotPointCollection;
//if (chartSeriesSource.Count == 0) // JWC was here.
chart.Series.Clear();
if (chartSeriesSource == null)
{
throw new Exception("The SeriesSource does not support IEnumerable");
}
// TODO: added this in for last minute labeling - needs revision! DJC
if (chart.DataContext is PlotViewModel)
{
var vm = chart.DataContext as PlotViewModel;
chart.Title = vm.Title;
// attempt to reduce the font size:
var titleStyle = new Style(typeof(Title))
{
BasedOn = GetChartTitleStyle(chart)
};
var s = new Setter(TextBlock.FontSizeProperty, 18); // todo: don't think these are working
var s2 = new Setter(TextBlock.FontWeightProperty, FontWeights.ExtraBold); // todo: don't think these are working
titleStyle.Setters.Add(s);
titleStyle.Setters.Add(s2);
chart.TitleStyle = titleStyle;
}
/* Loop over each collection of data */
int dataSourceCounter = 0;
int colorLabelCounter = 0;
for (int i = 0; i < chartSeriesSource.Count; i++)
{
var dataSource = chartSeriesSource[i];
//DynamicSeries series; CKH: dynamicseries replaced by datapointseries
DataPointSeries series;
/* Find out what type of series we want to use */
var seriesType = GetSeriesType(chart);
switch (seriesType)
{
case SeriesType.Line:
series = new LineSeries();
break;
case SeriesType.Bar:
series = new BarSeries();
break;
case SeriesType.Column:
series = new ColumnSeries();
break;
case SeriesType.Pie:
series = new PieSeries();
break;
case SeriesType.Scatter:
series = new ScatterSeries();
break;
default:
throw new ArgumentOutOfRangeException();
}
/* Get and set the style of the newly created series */
var seriesStyle = GetSeriesStyle(chart);
series.Style = seriesStyle;
string titleBindingName = null;
// TODO: added this in for last minute labeling - needs revision! DJC
if (chart.DataContext is PlotViewModel)
{
var vm = chart.DataContext as PlotViewModel;
series.Title = vm.Labels[dataSourceCounter];
//if(true)
var s =
new Setter(
Control.BackgroundProperty,
new SolidColorBrush(
DefaultColorList[colorLabelCounter % DefaultColorList.Count]));
if (i >= chartSeriesSource.Count - 1 || chartSeriesSource.ColorTags[i + 1] != "repeat") // advance the color, unless the group name is "repeat"
{
colorLabelCounter += 1;
}
switch (seriesType)
{
case SeriesType.Line:
case SeriesType.Bar:
case SeriesType.Column:
case SeriesType.Scatter:
default:
var dpSeries = ((DataPointSingleSeriesWithAxes)series);
dpSeries.DataPointStyle = new Style(typeof(LineDataPoint))
{
BasedOn = GetDataPointSeriesStyle(chart)
};
dpSeries.DataPointStyle.Setters.Add(s);
break;
case SeriesType.Pie:
((PieSeries)series).Style.Setters.Add(s);
break;
}
}
else
{
titleBindingName = GetTitle(chart); // this is getting the title from the attached property, which we could easily bind to...
}
if (!string.IsNullOrEmpty(titleBindingName))
{
/* Do some binding of the Title property */
var titleBinding = new Binding(titleBindingName)
{
Source = series.Title,
Mode = BindingMode.TwoWay
};
series.SetBinding(Series.TitleProperty, titleBinding);
}
/* Setup the bindings configured in the attached properties */
series.DependentValueBinding = new Binding(GetDependentValueBinding(chart));
series.IndependentValueBinding = new Binding(GetIndependentValueBinding(chart));
/*Set the ItemsSource property, which gives the data to the series to be rendered */
series.ItemsSource = dataSource as IEnumerable;
/* Add the series to the chart */
chart.Series.Add(series);
dataSourceCounter++;
}
}