private static void UpdateYValueAndXValuePosition(DataPoint dataPoint, Double canvasWidth, Double canvasHeight, Double dataPointWidth)
{
Canvas dataPointVisual = dataPoint.Faces.Visual as Canvas;
Faces faces = dataPoint.Faces;
Line highLowLine = faces.VisualComponents[0] as Line; // HighLowline
Line closeLine = faces.VisualComponents[1] as Line; // Closeline
Line openLine = faces.VisualComponents[2] as Line; // Openline
Double highY = 0, lowY = 0, openY = 0, closeY = 0;
PlotGroup plotGroup = dataPoint.Parent.PlotGroup;
CandleStick.SetDataPointValues(dataPoint, ref highY, ref lowY, ref openY, ref closeY);
// Calculate required pixel positions
Double xPositionOfDataPoint = Graphics.ValueToPixelPosition(0, canvasWidth, (Double)plotGroup.AxisX.InternalAxisMinimum, (Double)plotGroup.AxisX.InternalAxisMaximum, dataPoint.InternalXValue);
openY = Graphics.ValueToPixelPosition(canvasHeight, 0, (Double)plotGroup.AxisY.InternalAxisMinimum, (Double)plotGroup.AxisY.InternalAxisMaximum, openY);
closeY = Graphics.ValueToPixelPosition(canvasHeight, 0, (Double)plotGroup.AxisY.InternalAxisMinimum, (Double)plotGroup.AxisY.InternalAxisMaximum, closeY);
highY = Graphics.ValueToPixelPosition(canvasHeight, 0, (Double)plotGroup.AxisY.InternalAxisMinimum, (Double)plotGroup.AxisY.InternalAxisMaximum, highY);
lowY = Graphics.ValueToPixelPosition(canvasHeight, 0, (Double)plotGroup.AxisY.InternalAxisMinimum, (Double)plotGroup.AxisY.InternalAxisMaximum, lowY);
Double dataPointTop = (lowY < highY) ? lowY : highY;
openY = openY - dataPointTop;
closeY = closeY - dataPointTop;
dataPointVisual.Width = dataPointWidth;
dataPointVisual.Height = Math.Abs(lowY - highY);
// Set DataPoint Visual position
dataPointVisual.SetValue(Canvas.LeftProperty, xPositionOfDataPoint - dataPointWidth / 2);
dataPointVisual.SetValue(Canvas.TopProperty, dataPointTop);
// Set position for high-low line
highLowLine.X1 = dataPointVisual.Width / 2;
highLowLine.X2 = dataPointVisual.Width / 2;
highLowLine.Y1 = 0;
highLowLine.Y2 = dataPointVisual.Height;
// Set position for open line
openLine.X1 = 0;
openLine.X2 = dataPointVisual.Width / 2;
openLine.Y1 = openY;
openLine.Y2 = openY;
// Set position for close line
closeLine.X1 = dataPointVisual.Width / 2;
closeLine.X2 = dataPointVisual.Width;
closeLine.Y1 = closeY;
closeLine.Y2 = closeY;
// Need to apply shadow according to position of DataPoint
ApplyOrUpdateShadow(dataPoint, dataPointVisual, highLowLine, openLine, closeLine, dataPointWidth);
// Place label for the DataPoint
CandleStick.CreateAndPositionLabel(dataPoint.Parent.Faces.LabelCanvas, dataPoint);
}
private static void UpdateDataPoint(DataPoint dataPoint, VcProperties property, object newValue, Boolean isAxisChanged)
{
Chart chart = dataPoint.Chart as Chart;
DataSeries dataSeries = dataPoint.Parent;
PlotGroup plotGroup = dataSeries.PlotGroup;
Faces dsFaces = dataSeries.Faces;
Faces dpFaces = dataPoint.Faces;
Double dataPointWidth;
if (dsFaces != null)
{
ColumnChart.UpdateParentVisualCanvasSize(chart, dsFaces.Visual as Canvas);
}
if (dpFaces != null && dpFaces.Visual != null)
{
dataPointWidth = dpFaces.Visual.Width;
}
else if (dsFaces == null)
{
return;
}
else
{
dataPointWidth = CandleStick.CalculateDataPointWidth(dsFaces.Visual.Width, dsFaces.Visual.Height, chart);
}
if (property == VcProperties.Enabled)
{
CreateOrUpdateAStockDataPoint(dataPoint, dsFaces.Visual as Canvas, dsFaces.LabelCanvas, dsFaces.Visual.Width, dsFaces.Visual.Height, dataPointWidth);
return;
}
if (dpFaces == null)
{
return;
}
Canvas dataPointVisual = dpFaces.Visual as Canvas; // DataPoint visual canvas
Line highLowLine = dpFaces.VisualComponents[0] as Line; // HighLowline
Line closeLine = dpFaces.VisualComponents[1] as Line; // Closeline
Line openLine = dpFaces.VisualComponents[2] as Line; // Openline
switch (property)
{
case VcProperties.BorderThickness:
case VcProperties.BorderStyle:
ApplyBorderProperties(dataPoint, highLowLine, openLine, closeLine, dataPointWidth);
break;
case VcProperties.Color:
ApplyOrUpdateColorForAStockDp(dataPoint, highLowLine, openLine, closeLine);
break;
case VcProperties.Cursor:
dataPoint.SetCursor2DataPointVisualFaces();
break;
case VcProperties.Href:
dataPoint.SetHref2DataPointVisualFaces();
break;
case VcProperties.HrefTarget:
dataPoint.SetHref2DataPointVisualFaces();
break;
case VcProperties.LabelBackground:
case VcProperties.LabelEnabled:
case VcProperties.LabelFontColor:
case VcProperties.LabelFontFamily:
case VcProperties.LabelFontStyle:
case VcProperties.LabelFontSize:
case VcProperties.LabelFontWeight:
case VcProperties.LabelStyle:
case VcProperties.LabelText:
CandleStick.CreateAndPositionLabel(dsFaces.LabelCanvas, dataPoint);
break;
case VcProperties.LegendText:
chart.InvokeRender();
break;
case VcProperties.LightingEnabled:
ApplyOrUpdateColorForAStockDp(dataPoint, highLowLine, openLine, closeLine);
break;
//case VcProperties.MarkerBorderColor:
//case VcProperties.MarkerBorderThickness:
//case VcProperties.MarkerColor:
//case VcProperties.MarkerEnabled:
//case VcProperties.MarkerScale:
//case VcProperties.MarkerSize:
//case VcProperties.MarkerType:
case VcProperties.ShadowEnabled:
ApplyOrUpdateShadow(dataPoint, dataPointVisual, highLowLine, openLine, closeLine, dataPointWidth);
break;
case VcProperties.Opacity:
dpFaces.Visual.Opacity = dataSeries.Opacity * dataPoint.Opacity;
break;
case VcProperties.ShowInLegend:
chart.InvokeRender();
break;
case VcProperties.ToolTipText:
dataPoint._parsedToolTipText = dataPoint.TextParser(dataPoint.ToolTipText);
break;
case VcProperties.XValueFormatString:
case VcProperties.YValueFormatString:
dataPoint._parsedToolTipText = dataPoint.TextParser(dataPoint.ToolTipText);
CandleStick.CreateAndPositionLabel(dsFaces.LabelCanvas, dataPoint);
break;
case VcProperties.XValueType:
chart.InvokeRender();
break;
case VcProperties.Enabled:
CreateOrUpdateAStockDataPoint(dataPoint, dsFaces.Visual as Canvas, dsFaces.LabelCanvas, dsFaces.Visual.Width, dsFaces.Visual.Height, dataPointWidth);
break;
case VcProperties.XValue:
case VcProperties.YValues:
if (isAxisChanged)
{
UpdateDataSeries(dataSeries, property, newValue, isAxisChanged);
}
else
{
dataPoint._parsedToolTipText = dataPoint.TextParser(dataPoint.ToolTipText);
UpdateYValueAndXValuePosition(dataPoint, dsFaces.Visual.Width, dsFaces.Visual.Height, dpFaces.Visual.Width);
if ((Boolean)dataPoint.LabelEnabled)
{
CandleStick.CreateAndPositionLabel(dsFaces.LabelCanvas, dataPoint);
}
}
if (dataPoint.Parent.SelectionEnabled && dataPoint.Selected)
{
dataPoint.Select(true);
}
break;
}
}
