public static void SetLegendOrientation(this PlotModel plot, LegendOrientation orientation)
{
foreach (LegendBase legend in plot.Legends)
{
legend.LegendOrientation = orientation;
}
}
void IChartLegend <SkiaSharpDrawingContext> .Draw(Chart <SkiaSharpDrawingContext> chart)
{
var wfChart = (Chart)chart.View;
var series = chart.ChartSeries;
var legendOrientation = chart.LegendOrientation;
var legendPosition = chart.LegendPosition;
switch (legendPosition)
{
case LegendPosition.Hidden:
Visible = false;
break;
case LegendPosition.Top:
Visible = true;
if (legendOrientation == LegendOrientation.Auto)
{
Orientation = LegendOrientation.Horizontal;
}
Dock = DockStyle.Top;
break;
case LegendPosition.Left:
Visible = true;
if (legendOrientation == LegendOrientation.Auto)
{
Orientation = LegendOrientation.Vertical;
}
Dock = DockStyle.Left;
break;
case LegendPosition.Right:
Visible = true;
if (legendOrientation == LegendOrientation.Auto)
{
Orientation = LegendOrientation.Vertical;
}
Dock = DockStyle.Right;
break;
case LegendPosition.Bottom:
Visible = true;
if (legendOrientation == LegendOrientation.Auto)
{
Orientation = LegendOrientation.Horizontal;
}
Dock = DockStyle.Bottom;
break;
default:
break;
}
DrawAndMesure(series, wfChart);
BackColor = wfChart.LegendBackColor;
}
public void Draw(Chart <SkiaSharpDrawingContext> chart)
{
var wfChart = (Chart)chart.View;
var series = chart.DrawableSeries;
var legendOrientation = chart.LegendOrientation;
Visible = true;
if (legendOrientation == LegendOrientation.Auto)
{
Orientation = LegendOrientation.Vertical;
}
Dock = DockStyle.Right;
DrawAndMesure(series, wfChart);
BackColor = wfChart.LegendBackColor;
}
public static PlotModel getPlotModel(
String title,
TitleHorizontalAlignment titleHorizontalAlignment,
String legendTitle,
LegendOrientation legendOrientation,
LegendPlacement legendPlacement,
LegendPosition legendPosition)
{
return(new PlotModel
{
Title = title,
TitleHorizontalAlignment = titleHorizontalAlignment,
LegendTitle = legendTitle,
LegendOrientation = legendOrientation,
LegendPlacement = legendPlacement,
LegendPosition = legendPosition
});
}
private void UpdateThrottlerUnlocked()
{
// before measure every element in the chart
// we copy the properties that might change while we are updating the chart
// this call should be thread safe
// ToDo: ensure it is thread safe...
viewDrawMargin = chartView.DrawMargin;
controlSize = chartView.ControlSize;
yAxes = chartView.YAxes.Select(x => x.Copy()).ToArray();
xAxes = chartView.XAxes.Select(x => x.Copy()).ToArray();
measureWorker = new object();
series = chartView.Series.Select(series =>
{
// a good implementation of ISeries<T>
// must use the measureWorker to identify
// if the points are already fetched.
// this way no matter if the Series.Values collection changes
// the fetch method will always return the same collection for the
// current measureWorker instance
series.Fetch(this);
return(series);
}).ToArray();
legendPosition = chartView.LegendPosition;
legendOrientation = chartView.LegendOrientation;
legend = chartView.Legend; // ... this is a reference type.. this has no sense
tooltipPosition = chartView.TooltipPosition;
tooltipFindingStrategy = chartView.TooltipFindingStrategy;
tooltip = chartView.Tooltip; //... no sense again...
animationsSpeed = chartView.AnimationsSpeed;
easingFunction = chartView.EasingFunction;
Measure();
}
private static string[] GetLegendString(LegendOrientation orientation, string[] arguments, string[] labels)
{
var chars = orientation == LegendOrientation.Above ? "┌┬┐" : "└┴┘";
var result = new string[arguments.Length];
for (int i = 0; i < arguments.Length; i++)
{
var length = arguments[i].Length;
if (length == 0)
{
result[i] = "";
}
else
{
result[i] = "".PadRight(length, '─');
if (length == 1)
{
result[i] = chars[1].ToString();
}
else
{
result[i] = chars[0].ToString() + result[i].Substring(1, length - 2) + chars[2].ToString();
}
if (length > 3)
{
var label = labels[i];
int charsLeftRight = (result[i].Length - label.Length) / 2;
int charsLeft = (charsLeftRight * 2 + label.Length == result[i].Length) ? charsLeftRight : charsLeftRight + 1;
result[i] = result[i].Substring(0, charsLeft) + label + result[i].Substring(result[i].Length - charsLeftRight, charsLeftRight);
}
}
}
return(result);
}
/// <summary>
/// Create a Legend instance.
/// </summary>
/// <param name="orientation">Legend orientation.</param>
/// <param name="position">Legend position.</param>
/// <param name="insideGraph">Should the legend be displayed inside the graph area?</param>
public LegendConfiguration(LegendOrientation orientation, LegendPosition position, bool insideGraph)
{
Orientation = orientation;
Position = position;
InsideGraphArea = insideGraph;
}
